2 * Driver for Marvell PPv2 network controller for Armada 375 SoC.
4 * Copyright (C) 2014 Marvell
11 * This file is licensed under the terms of the GNU General Public
12 * License version 2. This program is licensed "as is" without any
13 * warranty of any kind, whether express or implied.
18 #include <dm/device-internal.h>
25 #include <linux/errno.h>
29 #include <asm/arch/cpu.h>
30 #include <asm/arch/soc.h>
31 #include <linux/compat.h>
32 #include <linux/mbus.h>
34 DECLARE_GLOBAL_DATA_PTR;
36 /* Some linux -> U-Boot compatibility stuff */
37 #define netdev_err(dev, fmt, args...) \
39 #define netdev_warn(dev, fmt, args...) \
41 #define netdev_info(dev, fmt, args...) \
43 #define netdev_dbg(dev, fmt, args...) \
46 #define ETH_ALEN 6 /* Octets in one ethernet addr */
48 #define __verify_pcpu_ptr(ptr) \
50 const void __percpu *__vpp_verify = (typeof((ptr) + 0))NULL; \
54 #define VERIFY_PERCPU_PTR(__p) \
56 __verify_pcpu_ptr(__p); \
57 (typeof(*(__p)) __kernel __force *)(__p); \
60 #define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); VERIFY_PERCPU_PTR(ptr); })
61 #define smp_processor_id() 0
62 #define num_present_cpus() 1
63 #define for_each_present_cpu(cpu) \
64 for ((cpu) = 0; (cpu) < 1; (cpu)++)
66 #define NET_SKB_PAD max(32, MVPP2_CPU_D_CACHE_LINE_SIZE)
68 #define CONFIG_NR_CPUS 1
69 #define ETH_HLEN ETHER_HDR_SIZE /* Total octets in header */
71 /* 2(HW hdr) 14(MAC hdr) 4(CRC) 32(extra for cache prefetch) */
72 #define WRAP (2 + ETH_HLEN + 4 + 32)
74 #define RX_BUFFER_SIZE (ALIGN(MTU + WRAP, ARCH_DMA_MINALIGN))
76 #define MVPP2_SMI_TIMEOUT 10000
78 /* RX Fifo Registers */
79 #define MVPP2_RX_DATA_FIFO_SIZE_REG(port) (0x00 + 4 * (port))
80 #define MVPP2_RX_ATTR_FIFO_SIZE_REG(port) (0x20 + 4 * (port))
81 #define MVPP2_RX_MIN_PKT_SIZE_REG 0x60
82 #define MVPP2_RX_FIFO_INIT_REG 0x64
84 /* RX DMA Top Registers */
85 #define MVPP2_RX_CTRL_REG(port) (0x140 + 4 * (port))
86 #define MVPP2_RX_LOW_LATENCY_PKT_SIZE(s) (((s) & 0xfff) << 16)
87 #define MVPP2_RX_USE_PSEUDO_FOR_CSUM_MASK BIT(31)
88 #define MVPP2_POOL_BUF_SIZE_REG(pool) (0x180 + 4 * (pool))
89 #define MVPP2_POOL_BUF_SIZE_OFFSET 5
90 #define MVPP2_RXQ_CONFIG_REG(rxq) (0x800 + 4 * (rxq))
91 #define MVPP2_SNOOP_PKT_SIZE_MASK 0x1ff
92 #define MVPP2_SNOOP_BUF_HDR_MASK BIT(9)
93 #define MVPP2_RXQ_POOL_SHORT_OFFS 20
94 #define MVPP21_RXQ_POOL_SHORT_MASK 0x700000
95 #define MVPP22_RXQ_POOL_SHORT_MASK 0xf00000
96 #define MVPP2_RXQ_POOL_LONG_OFFS 24
97 #define MVPP21_RXQ_POOL_LONG_MASK 0x7000000
98 #define MVPP22_RXQ_POOL_LONG_MASK 0xf000000
99 #define MVPP2_RXQ_PACKET_OFFSET_OFFS 28
100 #define MVPP2_RXQ_PACKET_OFFSET_MASK 0x70000000
101 #define MVPP2_RXQ_DISABLE_MASK BIT(31)
103 /* Parser Registers */
104 #define MVPP2_PRS_INIT_LOOKUP_REG 0x1000
105 #define MVPP2_PRS_PORT_LU_MAX 0xf
106 #define MVPP2_PRS_PORT_LU_MASK(port) (0xff << ((port) * 4))
107 #define MVPP2_PRS_PORT_LU_VAL(port, val) ((val) << ((port) * 4))
108 #define MVPP2_PRS_INIT_OFFS_REG(port) (0x1004 + ((port) & 4))
109 #define MVPP2_PRS_INIT_OFF_MASK(port) (0x3f << (((port) % 4) * 8))
110 #define MVPP2_PRS_INIT_OFF_VAL(port, val) ((val) << (((port) % 4) * 8))
111 #define MVPP2_PRS_MAX_LOOP_REG(port) (0x100c + ((port) & 4))
112 #define MVPP2_PRS_MAX_LOOP_MASK(port) (0xff << (((port) % 4) * 8))
113 #define MVPP2_PRS_MAX_LOOP_VAL(port, val) ((val) << (((port) % 4) * 8))
114 #define MVPP2_PRS_TCAM_IDX_REG 0x1100
115 #define MVPP2_PRS_TCAM_DATA_REG(idx) (0x1104 + (idx) * 4)
116 #define MVPP2_PRS_TCAM_INV_MASK BIT(31)
117 #define MVPP2_PRS_SRAM_IDX_REG 0x1200
118 #define MVPP2_PRS_SRAM_DATA_REG(idx) (0x1204 + (idx) * 4)
119 #define MVPP2_PRS_TCAM_CTRL_REG 0x1230
120 #define MVPP2_PRS_TCAM_EN_MASK BIT(0)
122 /* Classifier Registers */
123 #define MVPP2_CLS_MODE_REG 0x1800
124 #define MVPP2_CLS_MODE_ACTIVE_MASK BIT(0)
125 #define MVPP2_CLS_PORT_WAY_REG 0x1810
126 #define MVPP2_CLS_PORT_WAY_MASK(port) (1 << (port))
127 #define MVPP2_CLS_LKP_INDEX_REG 0x1814
128 #define MVPP2_CLS_LKP_INDEX_WAY_OFFS 6
129 #define MVPP2_CLS_LKP_TBL_REG 0x1818
130 #define MVPP2_CLS_LKP_TBL_RXQ_MASK 0xff
131 #define MVPP2_CLS_LKP_TBL_LOOKUP_EN_MASK BIT(25)
132 #define MVPP2_CLS_FLOW_INDEX_REG 0x1820
133 #define MVPP2_CLS_FLOW_TBL0_REG 0x1824
134 #define MVPP2_CLS_FLOW_TBL1_REG 0x1828
135 #define MVPP2_CLS_FLOW_TBL2_REG 0x182c
136 #define MVPP2_CLS_OVERSIZE_RXQ_LOW_REG(port) (0x1980 + ((port) * 4))
137 #define MVPP2_CLS_OVERSIZE_RXQ_LOW_BITS 3
138 #define MVPP2_CLS_OVERSIZE_RXQ_LOW_MASK 0x7
139 #define MVPP2_CLS_SWFWD_P2HQ_REG(port) (0x19b0 + ((port) * 4))
140 #define MVPP2_CLS_SWFWD_PCTRL_REG 0x19d0
141 #define MVPP2_CLS_SWFWD_PCTRL_MASK(port) (1 << (port))
143 /* Descriptor Manager Top Registers */
144 #define MVPP2_RXQ_NUM_REG 0x2040
145 #define MVPP2_RXQ_DESC_ADDR_REG 0x2044
146 #define MVPP22_DESC_ADDR_OFFS 8
147 #define MVPP2_RXQ_DESC_SIZE_REG 0x2048
148 #define MVPP2_RXQ_DESC_SIZE_MASK 0x3ff0
149 #define MVPP2_RXQ_STATUS_UPDATE_REG(rxq) (0x3000 + 4 * (rxq))
150 #define MVPP2_RXQ_NUM_PROCESSED_OFFSET 0
151 #define MVPP2_RXQ_NUM_NEW_OFFSET 16
152 #define MVPP2_RXQ_STATUS_REG(rxq) (0x3400 + 4 * (rxq))
153 #define MVPP2_RXQ_OCCUPIED_MASK 0x3fff
154 #define MVPP2_RXQ_NON_OCCUPIED_OFFSET 16
155 #define MVPP2_RXQ_NON_OCCUPIED_MASK 0x3fff0000
156 #define MVPP2_RXQ_THRESH_REG 0x204c
157 #define MVPP2_OCCUPIED_THRESH_OFFSET 0
158 #define MVPP2_OCCUPIED_THRESH_MASK 0x3fff
159 #define MVPP2_RXQ_INDEX_REG 0x2050
160 #define MVPP2_TXQ_NUM_REG 0x2080
161 #define MVPP2_TXQ_DESC_ADDR_REG 0x2084
162 #define MVPP2_TXQ_DESC_SIZE_REG 0x2088
163 #define MVPP2_TXQ_DESC_SIZE_MASK 0x3ff0
164 #define MVPP2_AGGR_TXQ_UPDATE_REG 0x2090
165 #define MVPP2_TXQ_THRESH_REG 0x2094
166 #define MVPP2_TRANSMITTED_THRESH_OFFSET 16
167 #define MVPP2_TRANSMITTED_THRESH_MASK 0x3fff0000
168 #define MVPP2_TXQ_INDEX_REG 0x2098
169 #define MVPP2_TXQ_PREF_BUF_REG 0x209c
170 #define MVPP2_PREF_BUF_PTR(desc) ((desc) & 0xfff)
171 #define MVPP2_PREF_BUF_SIZE_4 (BIT(12) | BIT(13))
172 #define MVPP2_PREF_BUF_SIZE_16 (BIT(12) | BIT(14))
173 #define MVPP2_PREF_BUF_THRESH(val) ((val) << 17)
174 #define MVPP2_TXQ_DRAIN_EN_MASK BIT(31)
175 #define MVPP2_TXQ_PENDING_REG 0x20a0
176 #define MVPP2_TXQ_PENDING_MASK 0x3fff
177 #define MVPP2_TXQ_INT_STATUS_REG 0x20a4
178 #define MVPP2_TXQ_SENT_REG(txq) (0x3c00 + 4 * (txq))
179 #define MVPP2_TRANSMITTED_COUNT_OFFSET 16
180 #define MVPP2_TRANSMITTED_COUNT_MASK 0x3fff0000
181 #define MVPP2_TXQ_RSVD_REQ_REG 0x20b0
182 #define MVPP2_TXQ_RSVD_REQ_Q_OFFSET 16
183 #define MVPP2_TXQ_RSVD_RSLT_REG 0x20b4
184 #define MVPP2_TXQ_RSVD_RSLT_MASK 0x3fff
185 #define MVPP2_TXQ_RSVD_CLR_REG 0x20b8
186 #define MVPP2_TXQ_RSVD_CLR_OFFSET 16
187 #define MVPP2_AGGR_TXQ_DESC_ADDR_REG(cpu) (0x2100 + 4 * (cpu))
188 #define MVPP22_AGGR_TXQ_DESC_ADDR_OFFS 8
189 #define MVPP2_AGGR_TXQ_DESC_SIZE_REG(cpu) (0x2140 + 4 * (cpu))
190 #define MVPP2_AGGR_TXQ_DESC_SIZE_MASK 0x3ff0
191 #define MVPP2_AGGR_TXQ_STATUS_REG(cpu) (0x2180 + 4 * (cpu))
192 #define MVPP2_AGGR_TXQ_PENDING_MASK 0x3fff
193 #define MVPP2_AGGR_TXQ_INDEX_REG(cpu) (0x21c0 + 4 * (cpu))
195 /* MBUS bridge registers */
196 #define MVPP2_WIN_BASE(w) (0x4000 + ((w) << 2))
197 #define MVPP2_WIN_SIZE(w) (0x4020 + ((w) << 2))
198 #define MVPP2_WIN_REMAP(w) (0x4040 + ((w) << 2))
199 #define MVPP2_BASE_ADDR_ENABLE 0x4060
201 /* AXI Bridge Registers */
202 #define MVPP22_AXI_BM_WR_ATTR_REG 0x4100
203 #define MVPP22_AXI_BM_RD_ATTR_REG 0x4104
204 #define MVPP22_AXI_AGGRQ_DESCR_RD_ATTR_REG 0x4110
205 #define MVPP22_AXI_TXQ_DESCR_WR_ATTR_REG 0x4114
206 #define MVPP22_AXI_TXQ_DESCR_RD_ATTR_REG 0x4118
207 #define MVPP22_AXI_RXQ_DESCR_WR_ATTR_REG 0x411c
208 #define MVPP22_AXI_RX_DATA_WR_ATTR_REG 0x4120
209 #define MVPP22_AXI_TX_DATA_RD_ATTR_REG 0x4130
210 #define MVPP22_AXI_RD_NORMAL_CODE_REG 0x4150
211 #define MVPP22_AXI_RD_SNOOP_CODE_REG 0x4154
212 #define MVPP22_AXI_WR_NORMAL_CODE_REG 0x4160
213 #define MVPP22_AXI_WR_SNOOP_CODE_REG 0x4164
215 /* Values for AXI Bridge registers */
216 #define MVPP22_AXI_ATTR_CACHE_OFFS 0
217 #define MVPP22_AXI_ATTR_DOMAIN_OFFS 12
219 #define MVPP22_AXI_CODE_CACHE_OFFS 0
220 #define MVPP22_AXI_CODE_DOMAIN_OFFS 4
222 #define MVPP22_AXI_CODE_CACHE_NON_CACHE 0x3
223 #define MVPP22_AXI_CODE_CACHE_WR_CACHE 0x7
224 #define MVPP22_AXI_CODE_CACHE_RD_CACHE 0xb
226 #define MVPP22_AXI_CODE_DOMAIN_OUTER_DOM 2
227 #define MVPP22_AXI_CODE_DOMAIN_SYSTEM 3
229 /* Interrupt Cause and Mask registers */
230 #define MVPP2_ISR_RX_THRESHOLD_REG(rxq) (0x5200 + 4 * (rxq))
231 #define MVPP21_ISR_RXQ_GROUP_REG(rxq) (0x5400 + 4 * (rxq))
233 #define MVPP22_ISR_RXQ_GROUP_INDEX_REG 0x5400
234 #define MVPP22_ISR_RXQ_GROUP_INDEX_SUBGROUP_MASK 0xf
235 #define MVPP22_ISR_RXQ_GROUP_INDEX_GROUP_MASK 0x380
236 #define MVPP22_ISR_RXQ_GROUP_INDEX_GROUP_OFFSET 7
238 #define MVPP22_ISR_RXQ_GROUP_INDEX_SUBGROUP_MASK 0xf
239 #define MVPP22_ISR_RXQ_GROUP_INDEX_GROUP_MASK 0x380
241 #define MVPP22_ISR_RXQ_SUB_GROUP_CONFIG_REG 0x5404
242 #define MVPP22_ISR_RXQ_SUB_GROUP_STARTQ_MASK 0x1f
243 #define MVPP22_ISR_RXQ_SUB_GROUP_SIZE_MASK 0xf00
244 #define MVPP22_ISR_RXQ_SUB_GROUP_SIZE_OFFSET 8
246 #define MVPP2_ISR_ENABLE_REG(port) (0x5420 + 4 * (port))
247 #define MVPP2_ISR_ENABLE_INTERRUPT(mask) ((mask) & 0xffff)
248 #define MVPP2_ISR_DISABLE_INTERRUPT(mask) (((mask) << 16) & 0xffff0000)
249 #define MVPP2_ISR_RX_TX_CAUSE_REG(port) (0x5480 + 4 * (port))
250 #define MVPP2_CAUSE_RXQ_OCCUP_DESC_ALL_MASK 0xffff
251 #define MVPP2_CAUSE_TXQ_OCCUP_DESC_ALL_MASK 0xff0000
252 #define MVPP2_CAUSE_RX_FIFO_OVERRUN_MASK BIT(24)
253 #define MVPP2_CAUSE_FCS_ERR_MASK BIT(25)
254 #define MVPP2_CAUSE_TX_FIFO_UNDERRUN_MASK BIT(26)
255 #define MVPP2_CAUSE_TX_EXCEPTION_SUM_MASK BIT(29)
256 #define MVPP2_CAUSE_RX_EXCEPTION_SUM_MASK BIT(30)
257 #define MVPP2_CAUSE_MISC_SUM_MASK BIT(31)
258 #define MVPP2_ISR_RX_TX_MASK_REG(port) (0x54a0 + 4 * (port))
259 #define MVPP2_ISR_PON_RX_TX_MASK_REG 0x54bc
260 #define MVPP2_PON_CAUSE_RXQ_OCCUP_DESC_ALL_MASK 0xffff
261 #define MVPP2_PON_CAUSE_TXP_OCCUP_DESC_ALL_MASK 0x3fc00000
262 #define MVPP2_PON_CAUSE_MISC_SUM_MASK BIT(31)
263 #define MVPP2_ISR_MISC_CAUSE_REG 0x55b0
265 /* Buffer Manager registers */
266 #define MVPP2_BM_POOL_BASE_REG(pool) (0x6000 + ((pool) * 4))
267 #define MVPP2_BM_POOL_BASE_ADDR_MASK 0xfffff80
268 #define MVPP2_BM_POOL_SIZE_REG(pool) (0x6040 + ((pool) * 4))
269 #define MVPP2_BM_POOL_SIZE_MASK 0xfff0
270 #define MVPP2_BM_POOL_READ_PTR_REG(pool) (0x6080 + ((pool) * 4))
271 #define MVPP2_BM_POOL_GET_READ_PTR_MASK 0xfff0
272 #define MVPP2_BM_POOL_PTRS_NUM_REG(pool) (0x60c0 + ((pool) * 4))
273 #define MVPP2_BM_POOL_PTRS_NUM_MASK 0xfff0
274 #define MVPP2_BM_BPPI_READ_PTR_REG(pool) (0x6100 + ((pool) * 4))
275 #define MVPP2_BM_BPPI_PTRS_NUM_REG(pool) (0x6140 + ((pool) * 4))
276 #define MVPP2_BM_BPPI_PTR_NUM_MASK 0x7ff
277 #define MVPP2_BM_BPPI_PREFETCH_FULL_MASK BIT(16)
278 #define MVPP2_BM_POOL_CTRL_REG(pool) (0x6200 + ((pool) * 4))
279 #define MVPP2_BM_START_MASK BIT(0)
280 #define MVPP2_BM_STOP_MASK BIT(1)
281 #define MVPP2_BM_STATE_MASK BIT(4)
282 #define MVPP2_BM_LOW_THRESH_OFFS 8
283 #define MVPP2_BM_LOW_THRESH_MASK 0x7f00
284 #define MVPP2_BM_LOW_THRESH_VALUE(val) ((val) << \
285 MVPP2_BM_LOW_THRESH_OFFS)
286 #define MVPP2_BM_HIGH_THRESH_OFFS 16
287 #define MVPP2_BM_HIGH_THRESH_MASK 0x7f0000
288 #define MVPP2_BM_HIGH_THRESH_VALUE(val) ((val) << \
289 MVPP2_BM_HIGH_THRESH_OFFS)
290 #define MVPP2_BM_INTR_CAUSE_REG(pool) (0x6240 + ((pool) * 4))
291 #define MVPP2_BM_RELEASED_DELAY_MASK BIT(0)
292 #define MVPP2_BM_ALLOC_FAILED_MASK BIT(1)
293 #define MVPP2_BM_BPPE_EMPTY_MASK BIT(2)
294 #define MVPP2_BM_BPPE_FULL_MASK BIT(3)
295 #define MVPP2_BM_AVAILABLE_BP_LOW_MASK BIT(4)
296 #define MVPP2_BM_INTR_MASK_REG(pool) (0x6280 + ((pool) * 4))
297 #define MVPP2_BM_PHY_ALLOC_REG(pool) (0x6400 + ((pool) * 4))
298 #define MVPP2_BM_PHY_ALLOC_GRNTD_MASK BIT(0)
299 #define MVPP2_BM_VIRT_ALLOC_REG 0x6440
300 #define MVPP2_BM_ADDR_HIGH_ALLOC 0x6444
301 #define MVPP2_BM_ADDR_HIGH_PHYS_MASK 0xff
302 #define MVPP2_BM_ADDR_HIGH_VIRT_MASK 0xff00
303 #define MVPP2_BM_ADDR_HIGH_VIRT_SHIFT 8
304 #define MVPP2_BM_PHY_RLS_REG(pool) (0x6480 + ((pool) * 4))
305 #define MVPP2_BM_PHY_RLS_MC_BUFF_MASK BIT(0)
306 #define MVPP2_BM_PHY_RLS_PRIO_EN_MASK BIT(1)
307 #define MVPP2_BM_PHY_RLS_GRNTD_MASK BIT(2)
308 #define MVPP2_BM_VIRT_RLS_REG 0x64c0
309 #define MVPP21_BM_MC_RLS_REG 0x64c4
310 #define MVPP2_BM_MC_ID_MASK 0xfff
311 #define MVPP2_BM_FORCE_RELEASE_MASK BIT(12)
312 #define MVPP22_BM_ADDR_HIGH_RLS_REG 0x64c4
313 #define MVPP22_BM_ADDR_HIGH_PHYS_RLS_MASK 0xff
314 #define MVPP22_BM_ADDR_HIGH_VIRT_RLS_MASK 0xff00
315 #define MVPP22_BM_ADDR_HIGH_VIRT_RLS_SHIFT 8
316 #define MVPP22_BM_MC_RLS_REG 0x64d4
318 /* TX Scheduler registers */
319 #define MVPP2_TXP_SCHED_PORT_INDEX_REG 0x8000
320 #define MVPP2_TXP_SCHED_Q_CMD_REG 0x8004
321 #define MVPP2_TXP_SCHED_ENQ_MASK 0xff
322 #define MVPP2_TXP_SCHED_DISQ_OFFSET 8
323 #define MVPP2_TXP_SCHED_CMD_1_REG 0x8010
324 #define MVPP2_TXP_SCHED_PERIOD_REG 0x8018
325 #define MVPP2_TXP_SCHED_MTU_REG 0x801c
326 #define MVPP2_TXP_MTU_MAX 0x7FFFF
327 #define MVPP2_TXP_SCHED_REFILL_REG 0x8020
328 #define MVPP2_TXP_REFILL_TOKENS_ALL_MASK 0x7ffff
329 #define MVPP2_TXP_REFILL_PERIOD_ALL_MASK 0x3ff00000
330 #define MVPP2_TXP_REFILL_PERIOD_MASK(v) ((v) << 20)
331 #define MVPP2_TXP_SCHED_TOKEN_SIZE_REG 0x8024
332 #define MVPP2_TXP_TOKEN_SIZE_MAX 0xffffffff
333 #define MVPP2_TXQ_SCHED_REFILL_REG(q) (0x8040 + ((q) << 2))
334 #define MVPP2_TXQ_REFILL_TOKENS_ALL_MASK 0x7ffff
335 #define MVPP2_TXQ_REFILL_PERIOD_ALL_MASK 0x3ff00000
336 #define MVPP2_TXQ_REFILL_PERIOD_MASK(v) ((v) << 20)
337 #define MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(q) (0x8060 + ((q) << 2))
338 #define MVPP2_TXQ_TOKEN_SIZE_MAX 0x7fffffff
339 #define MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(q) (0x8080 + ((q) << 2))
340 #define MVPP2_TXQ_TOKEN_CNTR_MAX 0xffffffff
342 /* TX general registers */
343 #define MVPP2_TX_SNOOP_REG 0x8800
344 #define MVPP2_TX_PORT_FLUSH_REG 0x8810
345 #define MVPP2_TX_PORT_FLUSH_MASK(port) (1 << (port))
348 #define MVPP2_SRC_ADDR_MIDDLE 0x24
349 #define MVPP2_SRC_ADDR_HIGH 0x28
350 #define MVPP2_PHY_AN_CFG0_REG 0x34
351 #define MVPP2_PHY_AN_STOP_SMI0_MASK BIT(7)
352 #define MVPP2_MNG_EXTENDED_GLOBAL_CTRL_REG 0x305c
353 #define MVPP2_EXT_GLOBAL_CTRL_DEFAULT 0x27
355 /* Per-port registers */
356 #define MVPP2_GMAC_CTRL_0_REG 0x0
357 #define MVPP2_GMAC_PORT_EN_MASK BIT(0)
358 #define MVPP2_GMAC_PORT_TYPE_MASK BIT(1)
359 #define MVPP2_GMAC_MAX_RX_SIZE_OFFS 2
360 #define MVPP2_GMAC_MAX_RX_SIZE_MASK 0x7ffc
361 #define MVPP2_GMAC_MIB_CNTR_EN_MASK BIT(15)
362 #define MVPP2_GMAC_CTRL_1_REG 0x4
363 #define MVPP2_GMAC_PERIODIC_XON_EN_MASK BIT(1)
364 #define MVPP2_GMAC_GMII_LB_EN_MASK BIT(5)
365 #define MVPP2_GMAC_PCS_LB_EN_BIT 6
366 #define MVPP2_GMAC_PCS_LB_EN_MASK BIT(6)
367 #define MVPP2_GMAC_SA_LOW_OFFS 7
368 #define MVPP2_GMAC_CTRL_2_REG 0x8
369 #define MVPP2_GMAC_INBAND_AN_MASK BIT(0)
370 #define MVPP2_GMAC_SGMII_MODE_MASK BIT(0)
371 #define MVPP2_GMAC_PCS_ENABLE_MASK BIT(3)
372 #define MVPP2_GMAC_PORT_RGMII_MASK BIT(4)
373 #define MVPP2_GMAC_PORT_DIS_PADING_MASK BIT(5)
374 #define MVPP2_GMAC_PORT_RESET_MASK BIT(6)
375 #define MVPP2_GMAC_CLK_125_BYPS_EN_MASK BIT(9)
376 #define MVPP2_GMAC_AUTONEG_CONFIG 0xc
377 #define MVPP2_GMAC_FORCE_LINK_DOWN BIT(0)
378 #define MVPP2_GMAC_FORCE_LINK_PASS BIT(1)
379 #define MVPP2_GMAC_EN_PCS_AN BIT(2)
380 #define MVPP2_GMAC_AN_BYPASS_EN BIT(3)
381 #define MVPP2_GMAC_CONFIG_MII_SPEED BIT(5)
382 #define MVPP2_GMAC_CONFIG_GMII_SPEED BIT(6)
383 #define MVPP2_GMAC_AN_SPEED_EN BIT(7)
384 #define MVPP2_GMAC_FC_ADV_EN BIT(9)
385 #define MVPP2_GMAC_EN_FC_AN BIT(11)
386 #define MVPP2_GMAC_CONFIG_FULL_DUPLEX BIT(12)
387 #define MVPP2_GMAC_AN_DUPLEX_EN BIT(13)
388 #define MVPP2_GMAC_CHOOSE_SAMPLE_TX_CONFIG BIT(15)
389 #define MVPP2_GMAC_PORT_FIFO_CFG_1_REG 0x1c
390 #define MVPP2_GMAC_TX_FIFO_MIN_TH_OFFS 6
391 #define MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK 0x1fc0
392 #define MVPP2_GMAC_TX_FIFO_MIN_TH_MASK(v) (((v) << 6) & \
393 MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK)
394 #define MVPP2_GMAC_CTRL_4_REG 0x90
395 #define MVPP2_GMAC_CTRL4_EXT_PIN_GMII_SEL_MASK BIT(0)
396 #define MVPP2_GMAC_CTRL4_DP_CLK_SEL_MASK BIT(5)
397 #define MVPP2_GMAC_CTRL4_SYNC_BYPASS_MASK BIT(6)
398 #define MVPP2_GMAC_CTRL4_QSGMII_BYPASS_ACTIVE_MASK BIT(7)
401 * Per-port XGMAC registers. PPv2.2 only, only for GOP port 0,
402 * relative to port->base.
405 /* Port Mac Control0 */
406 #define MVPP22_XLG_CTRL0_REG 0x100
407 #define MVPP22_XLG_PORT_EN BIT(0)
408 #define MVPP22_XLG_MAC_RESETN BIT(1)
409 #define MVPP22_XLG_RX_FC_EN BIT(7)
410 #define MVPP22_XLG_MIBCNT_DIS BIT(13)
411 /* Port Mac Control1 */
412 #define MVPP22_XLG_CTRL1_REG 0x104
413 #define MVPP22_XLG_MAX_RX_SIZE_OFFS 0
414 #define MVPP22_XLG_MAX_RX_SIZE_MASK 0x1fff
415 /* Port Interrupt Mask */
416 #define MVPP22_XLG_INTERRUPT_MASK_REG 0x118
417 #define MVPP22_XLG_INTERRUPT_LINK_CHANGE BIT(1)
418 /* Port Mac Control3 */
419 #define MVPP22_XLG_CTRL3_REG 0x11c
420 #define MVPP22_XLG_CTRL3_MACMODESELECT_MASK (7 << 13)
421 #define MVPP22_XLG_CTRL3_MACMODESELECT_GMAC (0 << 13)
422 #define MVPP22_XLG_CTRL3_MACMODESELECT_10GMAC (1 << 13)
423 /* Port Mac Control4 */
424 #define MVPP22_XLG_CTRL4_REG 0x184
425 #define MVPP22_XLG_FORWARD_802_3X_FC_EN BIT(5)
426 #define MVPP22_XLG_FORWARD_PFC_EN BIT(6)
427 #define MVPP22_XLG_MODE_DMA_1G BIT(12)
428 #define MVPP22_XLG_EN_IDLE_CHECK_FOR_LINK BIT(14)
432 /* Global Configuration 0 */
433 #define MVPP22_XPCS_GLOBAL_CFG_0_REG 0x0
434 #define MVPP22_XPCS_PCSRESET BIT(0)
435 #define MVPP22_XPCS_PCSMODE_OFFS 3
436 #define MVPP22_XPCS_PCSMODE_MASK (0x3 << \
437 MVPP22_XPCS_PCSMODE_OFFS)
438 #define MVPP22_XPCS_LANEACTIVE_OFFS 5
439 #define MVPP22_XPCS_LANEACTIVE_MASK (0x3 << \
440 MVPP22_XPCS_LANEACTIVE_OFFS)
444 #define PCS40G_COMMON_CONTROL 0x14
445 #define FORWARD_ERROR_CORRECTION_MASK BIT(1)
447 #define PCS_CLOCK_RESET 0x14c
448 #define TX_SD_CLK_RESET_MASK BIT(0)
449 #define RX_SD_CLK_RESET_MASK BIT(1)
450 #define MAC_CLK_RESET_MASK BIT(2)
451 #define CLK_DIVISION_RATIO_OFFS 4
452 #define CLK_DIVISION_RATIO_MASK (0x7 << CLK_DIVISION_RATIO_OFFS)
453 #define CLK_DIV_PHASE_SET_MASK BIT(11)
455 /* System Soft Reset 1 */
456 #define GOP_SOFT_RESET_1_REG 0x108
457 #define NETC_GOP_SOFT_RESET_OFFS 6
458 #define NETC_GOP_SOFT_RESET_MASK (0x1 << \
459 NETC_GOP_SOFT_RESET_OFFS)
461 /* Ports Control 0 */
462 #define NETCOMP_PORTS_CONTROL_0_REG 0x110
463 #define NETC_BUS_WIDTH_SELECT_OFFS 1
464 #define NETC_BUS_WIDTH_SELECT_MASK (0x1 << \
465 NETC_BUS_WIDTH_SELECT_OFFS)
466 #define NETC_GIG_RX_DATA_SAMPLE_OFFS 29
467 #define NETC_GIG_RX_DATA_SAMPLE_MASK (0x1 << \
468 NETC_GIG_RX_DATA_SAMPLE_OFFS)
469 #define NETC_CLK_DIV_PHASE_OFFS 31
470 #define NETC_CLK_DIV_PHASE_MASK (0x1 << NETC_CLK_DIV_PHASE_OFFS)
471 /* Ports Control 1 */
472 #define NETCOMP_PORTS_CONTROL_1_REG 0x114
473 #define NETC_PORTS_ACTIVE_OFFSET(p) (0 + p)
474 #define NETC_PORTS_ACTIVE_MASK(p) (0x1 << \
475 NETC_PORTS_ACTIVE_OFFSET(p))
476 #define NETC_PORT_GIG_RF_RESET_OFFS(p) (28 + p)
477 #define NETC_PORT_GIG_RF_RESET_MASK(p) (0x1 << \
478 NETC_PORT_GIG_RF_RESET_OFFS(p))
479 #define NETCOMP_CONTROL_0_REG 0x120
480 #define NETC_GBE_PORT0_SGMII_MODE_OFFS 0
481 #define NETC_GBE_PORT0_SGMII_MODE_MASK (0x1 << \
482 NETC_GBE_PORT0_SGMII_MODE_OFFS)
483 #define NETC_GBE_PORT1_SGMII_MODE_OFFS 1
484 #define NETC_GBE_PORT1_SGMII_MODE_MASK (0x1 << \
485 NETC_GBE_PORT1_SGMII_MODE_OFFS)
486 #define NETC_GBE_PORT1_MII_MODE_OFFS 2
487 #define NETC_GBE_PORT1_MII_MODE_MASK (0x1 << \
488 NETC_GBE_PORT1_MII_MODE_OFFS)
490 #define MVPP22_SMI_MISC_CFG_REG (MVPP22_SMI + 0x04)
491 #define MVPP22_SMI_POLLING_EN BIT(10)
493 #define MVPP22_SMI_PHY_ADDR_REG(port) (MVPP22_SMI + 0x04 + \
496 #define MVPP2_CAUSE_TXQ_SENT_DESC_ALL_MASK 0xff
498 /* Descriptor ring Macros */
499 #define MVPP2_QUEUE_NEXT_DESC(q, index) \
500 (((index) < (q)->last_desc) ? ((index) + 1) : 0)
502 /* SMI: 0xc0054 -> offset 0x54 to lms_base */
503 #define MVPP21_SMI 0x0054
504 /* PP2.2: SMI: 0x12a200 -> offset 0x1200 to iface_base */
505 #define MVPP22_SMI 0x1200
506 #define MVPP2_PHY_REG_MASK 0x1f
507 /* SMI register fields */
508 #define MVPP2_SMI_DATA_OFFS 0 /* Data */
509 #define MVPP2_SMI_DATA_MASK (0xffff << MVPP2_SMI_DATA_OFFS)
510 #define MVPP2_SMI_DEV_ADDR_OFFS 16 /* PHY device address */
511 #define MVPP2_SMI_REG_ADDR_OFFS 21 /* PHY device reg addr*/
512 #define MVPP2_SMI_OPCODE_OFFS 26 /* Write/Read opcode */
513 #define MVPP2_SMI_OPCODE_READ (1 << MVPP2_SMI_OPCODE_OFFS)
514 #define MVPP2_SMI_READ_VALID (1 << 27) /* Read Valid */
515 #define MVPP2_SMI_BUSY (1 << 28) /* Busy */
517 #define MVPP2_PHY_ADDR_MASK 0x1f
518 #define MVPP2_PHY_REG_MASK 0x1f
520 /* Additional PPv2.2 offsets */
521 #define MVPP22_MPCS 0x007000
522 #define MVPP22_XPCS 0x007400
523 #define MVPP22_PORT_BASE 0x007e00
524 #define MVPP22_PORT_OFFSET 0x001000
525 #define MVPP22_RFU1 0x318000
527 /* Maximum number of ports */
528 #define MVPP22_GOP_MAC_NUM 4
530 /* Sets the field located at the specified in data */
531 #define MVPP2_RGMII_TX_FIFO_MIN_TH 0x41
532 #define MVPP2_SGMII_TX_FIFO_MIN_TH 0x5
533 #define MVPP2_SGMII2_5_TX_FIFO_MIN_TH 0xb
536 enum mv_netc_topology {
537 MV_NETC_GE_MAC2_SGMII = BIT(0),
538 MV_NETC_GE_MAC3_SGMII = BIT(1),
539 MV_NETC_GE_MAC3_RGMII = BIT(2),
544 MV_NETC_SECOND_PHASE,
547 enum mv_netc_sgmii_xmi_mode {
552 enum mv_netc_mii_mode {
562 /* Various constants */
565 #define MVPP2_TXDONE_COAL_PKTS_THRESH 15
566 #define MVPP2_TXDONE_HRTIMER_PERIOD_NS 1000000UL
567 #define MVPP2_RX_COAL_PKTS 32
568 #define MVPP2_RX_COAL_USEC 100
570 /* The two bytes Marvell header. Either contains a special value used
571 * by Marvell switches when a specific hardware mode is enabled (not
572 * supported by this driver) or is filled automatically by zeroes on
573 * the RX side. Those two bytes being at the front of the Ethernet
574 * header, they allow to have the IP header aligned on a 4 bytes
575 * boundary automatically: the hardware skips those two bytes on its
578 #define MVPP2_MH_SIZE 2
579 #define MVPP2_ETH_TYPE_LEN 2
580 #define MVPP2_PPPOE_HDR_SIZE 8
581 #define MVPP2_VLAN_TAG_LEN 4
583 /* Lbtd 802.3 type */
584 #define MVPP2_IP_LBDT_TYPE 0xfffa
586 #define MVPP2_CPU_D_CACHE_LINE_SIZE 32
587 #define MVPP2_TX_CSUM_MAX_SIZE 9800
589 /* Timeout constants */
590 #define MVPP2_TX_DISABLE_TIMEOUT_MSEC 1000
591 #define MVPP2_TX_PENDING_TIMEOUT_MSEC 1000
593 #define MVPP2_TX_MTU_MAX 0x7ffff
595 /* Maximum number of T-CONTs of PON port */
596 #define MVPP2_MAX_TCONT 16
598 /* Maximum number of supported ports */
599 #define MVPP2_MAX_PORTS 4
601 /* Maximum number of TXQs used by single port */
602 #define MVPP2_MAX_TXQ 8
604 /* Default number of TXQs in use */
605 #define MVPP2_DEFAULT_TXQ 1
607 /* Dfault number of RXQs in use */
608 #define MVPP2_DEFAULT_RXQ 1
609 #define CONFIG_MV_ETH_RXQ 8 /* increment by 8 */
611 /* Max number of Rx descriptors */
612 #define MVPP2_MAX_RXD 16
614 /* Max number of Tx descriptors */
615 #define MVPP2_MAX_TXD 16
617 /* Amount of Tx descriptors that can be reserved at once by CPU */
618 #define MVPP2_CPU_DESC_CHUNK 64
620 /* Max number of Tx descriptors in each aggregated queue */
621 #define MVPP2_AGGR_TXQ_SIZE 256
623 /* Descriptor aligned size */
624 #define MVPP2_DESC_ALIGNED_SIZE 32
626 /* Descriptor alignment mask */
627 #define MVPP2_TX_DESC_ALIGN (MVPP2_DESC_ALIGNED_SIZE - 1)
629 /* RX FIFO constants */
630 #define MVPP21_RX_FIFO_PORT_DATA_SIZE 0x2000
631 #define MVPP21_RX_FIFO_PORT_ATTR_SIZE 0x80
632 #define MVPP22_RX_FIFO_10GB_PORT_DATA_SIZE 0x8000
633 #define MVPP22_RX_FIFO_2_5GB_PORT_DATA_SIZE 0x2000
634 #define MVPP22_RX_FIFO_1GB_PORT_DATA_SIZE 0x1000
635 #define MVPP22_RX_FIFO_10GB_PORT_ATTR_SIZE 0x200
636 #define MVPP22_RX_FIFO_2_5GB_PORT_ATTR_SIZE 0x80
637 #define MVPP22_RX_FIFO_1GB_PORT_ATTR_SIZE 0x40
638 #define MVPP2_RX_FIFO_PORT_MIN_PKT 0x80
640 /* TX general registers */
641 #define MVPP22_TX_FIFO_SIZE_REG(eth_tx_port) (0x8860 + ((eth_tx_port) << 2))
642 #define MVPP22_TX_FIFO_SIZE_MASK 0xf
644 /* TX FIFO constants */
645 #define MVPP2_TX_FIFO_DATA_SIZE_10KB 0xa
646 #define MVPP2_TX_FIFO_DATA_SIZE_3KB 0x3
648 /* RX buffer constants */
649 #define MVPP2_SKB_SHINFO_SIZE \
652 #define MVPP2_RX_PKT_SIZE(mtu) \
653 ALIGN((mtu) + MVPP2_MH_SIZE + MVPP2_VLAN_TAG_LEN + \
654 ETH_HLEN + ETH_FCS_LEN, MVPP2_CPU_D_CACHE_LINE_SIZE)
656 #define MVPP2_RX_BUF_SIZE(pkt_size) ((pkt_size) + NET_SKB_PAD)
657 #define MVPP2_RX_TOTAL_SIZE(buf_size) ((buf_size) + MVPP2_SKB_SHINFO_SIZE)
658 #define MVPP2_RX_MAX_PKT_SIZE(total_size) \
659 ((total_size) - NET_SKB_PAD - MVPP2_SKB_SHINFO_SIZE)
661 #define MVPP2_BIT_TO_BYTE(bit) ((bit) / 8)
663 /* IPv6 max L3 address size */
664 #define MVPP2_MAX_L3_ADDR_SIZE 16
667 #define MVPP2_F_LOOPBACK BIT(0)
669 /* Marvell tag types */
670 enum mvpp2_tag_type {
671 MVPP2_TAG_TYPE_NONE = 0,
672 MVPP2_TAG_TYPE_MH = 1,
673 MVPP2_TAG_TYPE_DSA = 2,
674 MVPP2_TAG_TYPE_EDSA = 3,
675 MVPP2_TAG_TYPE_VLAN = 4,
676 MVPP2_TAG_TYPE_LAST = 5
679 /* Parser constants */
680 #define MVPP2_PRS_TCAM_SRAM_SIZE 256
681 #define MVPP2_PRS_TCAM_WORDS 6
682 #define MVPP2_PRS_SRAM_WORDS 4
683 #define MVPP2_PRS_FLOW_ID_SIZE 64
684 #define MVPP2_PRS_FLOW_ID_MASK 0x3f
685 #define MVPP2_PRS_TCAM_ENTRY_INVALID 1
686 #define MVPP2_PRS_TCAM_DSA_TAGGED_BIT BIT(5)
687 #define MVPP2_PRS_IPV4_HEAD 0x40
688 #define MVPP2_PRS_IPV4_HEAD_MASK 0xf0
689 #define MVPP2_PRS_IPV4_MC 0xe0
690 #define MVPP2_PRS_IPV4_MC_MASK 0xf0
691 #define MVPP2_PRS_IPV4_BC_MASK 0xff
692 #define MVPP2_PRS_IPV4_IHL 0x5
693 #define MVPP2_PRS_IPV4_IHL_MASK 0xf
694 #define MVPP2_PRS_IPV6_MC 0xff
695 #define MVPP2_PRS_IPV6_MC_MASK 0xff
696 #define MVPP2_PRS_IPV6_HOP_MASK 0xff
697 #define MVPP2_PRS_TCAM_PROTO_MASK 0xff
698 #define MVPP2_PRS_TCAM_PROTO_MASK_L 0x3f
699 #define MVPP2_PRS_DBL_VLANS_MAX 100
702 * - lookup ID - 4 bits
704 * - additional information - 1 byte
705 * - header data - 8 bytes
706 * The fields are represented by MVPP2_PRS_TCAM_DATA_REG(5)->(0).
708 #define MVPP2_PRS_AI_BITS 8
709 #define MVPP2_PRS_PORT_MASK 0xff
710 #define MVPP2_PRS_LU_MASK 0xf
711 #define MVPP2_PRS_TCAM_DATA_BYTE(offs) \
712 (((offs) - ((offs) % 2)) * 2 + ((offs) % 2))
713 #define MVPP2_PRS_TCAM_DATA_BYTE_EN(offs) \
714 (((offs) * 2) - ((offs) % 2) + 2)
715 #define MVPP2_PRS_TCAM_AI_BYTE 16
716 #define MVPP2_PRS_TCAM_PORT_BYTE 17
717 #define MVPP2_PRS_TCAM_LU_BYTE 20
718 #define MVPP2_PRS_TCAM_EN_OFFS(offs) ((offs) + 2)
719 #define MVPP2_PRS_TCAM_INV_WORD 5
720 /* Tcam entries ID */
721 #define MVPP2_PE_DROP_ALL 0
722 #define MVPP2_PE_FIRST_FREE_TID 1
723 #define MVPP2_PE_LAST_FREE_TID (MVPP2_PRS_TCAM_SRAM_SIZE - 31)
724 #define MVPP2_PE_IP6_EXT_PROTO_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 30)
725 #define MVPP2_PE_MAC_MC_IP6 (MVPP2_PRS_TCAM_SRAM_SIZE - 29)
726 #define MVPP2_PE_IP6_ADDR_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 28)
727 #define MVPP2_PE_IP4_ADDR_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 27)
728 #define MVPP2_PE_LAST_DEFAULT_FLOW (MVPP2_PRS_TCAM_SRAM_SIZE - 26)
729 #define MVPP2_PE_FIRST_DEFAULT_FLOW (MVPP2_PRS_TCAM_SRAM_SIZE - 19)
730 #define MVPP2_PE_EDSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 18)
731 #define MVPP2_PE_EDSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 17)
732 #define MVPP2_PE_DSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 16)
733 #define MVPP2_PE_DSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 15)
734 #define MVPP2_PE_ETYPE_EDSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 14)
735 #define MVPP2_PE_ETYPE_EDSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 13)
736 #define MVPP2_PE_ETYPE_DSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 12)
737 #define MVPP2_PE_ETYPE_DSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 11)
738 #define MVPP2_PE_MH_DEFAULT (MVPP2_PRS_TCAM_SRAM_SIZE - 10)
739 #define MVPP2_PE_DSA_DEFAULT (MVPP2_PRS_TCAM_SRAM_SIZE - 9)
740 #define MVPP2_PE_IP6_PROTO_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 8)
741 #define MVPP2_PE_IP4_PROTO_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 7)
742 #define MVPP2_PE_ETH_TYPE_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 6)
743 #define MVPP2_PE_VLAN_DBL (MVPP2_PRS_TCAM_SRAM_SIZE - 5)
744 #define MVPP2_PE_VLAN_NONE (MVPP2_PRS_TCAM_SRAM_SIZE - 4)
745 #define MVPP2_PE_MAC_MC_ALL (MVPP2_PRS_TCAM_SRAM_SIZE - 3)
746 #define MVPP2_PE_MAC_PROMISCUOUS (MVPP2_PRS_TCAM_SRAM_SIZE - 2)
747 #define MVPP2_PE_MAC_NON_PROMISCUOUS (MVPP2_PRS_TCAM_SRAM_SIZE - 1)
750 * The fields are represented by MVPP2_PRS_TCAM_DATA_REG(3)->(0).
752 #define MVPP2_PRS_SRAM_RI_OFFS 0
753 #define MVPP2_PRS_SRAM_RI_WORD 0
754 #define MVPP2_PRS_SRAM_RI_CTRL_OFFS 32
755 #define MVPP2_PRS_SRAM_RI_CTRL_WORD 1
756 #define MVPP2_PRS_SRAM_RI_CTRL_BITS 32
757 #define MVPP2_PRS_SRAM_SHIFT_OFFS 64
758 #define MVPP2_PRS_SRAM_SHIFT_SIGN_BIT 72
759 #define MVPP2_PRS_SRAM_UDF_OFFS 73
760 #define MVPP2_PRS_SRAM_UDF_BITS 8
761 #define MVPP2_PRS_SRAM_UDF_MASK 0xff
762 #define MVPP2_PRS_SRAM_UDF_SIGN_BIT 81
763 #define MVPP2_PRS_SRAM_UDF_TYPE_OFFS 82
764 #define MVPP2_PRS_SRAM_UDF_TYPE_MASK 0x7
765 #define MVPP2_PRS_SRAM_UDF_TYPE_L3 1
766 #define MVPP2_PRS_SRAM_UDF_TYPE_L4 4
767 #define MVPP2_PRS_SRAM_OP_SEL_SHIFT_OFFS 85
768 #define MVPP2_PRS_SRAM_OP_SEL_SHIFT_MASK 0x3
769 #define MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD 1
770 #define MVPP2_PRS_SRAM_OP_SEL_SHIFT_IP4_ADD 2
771 #define MVPP2_PRS_SRAM_OP_SEL_SHIFT_IP6_ADD 3
772 #define MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS 87
773 #define MVPP2_PRS_SRAM_OP_SEL_UDF_BITS 2
774 #define MVPP2_PRS_SRAM_OP_SEL_UDF_MASK 0x3
775 #define MVPP2_PRS_SRAM_OP_SEL_UDF_ADD 0
776 #define MVPP2_PRS_SRAM_OP_SEL_UDF_IP4_ADD 2
777 #define MVPP2_PRS_SRAM_OP_SEL_UDF_IP6_ADD 3
778 #define MVPP2_PRS_SRAM_OP_SEL_BASE_OFFS 89
779 #define MVPP2_PRS_SRAM_AI_OFFS 90
780 #define MVPP2_PRS_SRAM_AI_CTRL_OFFS 98
781 #define MVPP2_PRS_SRAM_AI_CTRL_BITS 8
782 #define MVPP2_PRS_SRAM_AI_MASK 0xff
783 #define MVPP2_PRS_SRAM_NEXT_LU_OFFS 106
784 #define MVPP2_PRS_SRAM_NEXT_LU_MASK 0xf
785 #define MVPP2_PRS_SRAM_LU_DONE_BIT 110
786 #define MVPP2_PRS_SRAM_LU_GEN_BIT 111
788 /* Sram result info bits assignment */
789 #define MVPP2_PRS_RI_MAC_ME_MASK 0x1
790 #define MVPP2_PRS_RI_DSA_MASK 0x2
791 #define MVPP2_PRS_RI_VLAN_MASK (BIT(2) | BIT(3))
792 #define MVPP2_PRS_RI_VLAN_NONE 0x0
793 #define MVPP2_PRS_RI_VLAN_SINGLE BIT(2)
794 #define MVPP2_PRS_RI_VLAN_DOUBLE BIT(3)
795 #define MVPP2_PRS_RI_VLAN_TRIPLE (BIT(2) | BIT(3))
796 #define MVPP2_PRS_RI_CPU_CODE_MASK 0x70
797 #define MVPP2_PRS_RI_CPU_CODE_RX_SPEC BIT(4)
798 #define MVPP2_PRS_RI_L2_CAST_MASK (BIT(9) | BIT(10))
799 #define MVPP2_PRS_RI_L2_UCAST 0x0
800 #define MVPP2_PRS_RI_L2_MCAST BIT(9)
801 #define MVPP2_PRS_RI_L2_BCAST BIT(10)
802 #define MVPP2_PRS_RI_PPPOE_MASK 0x800
803 #define MVPP2_PRS_RI_L3_PROTO_MASK (BIT(12) | BIT(13) | BIT(14))
804 #define MVPP2_PRS_RI_L3_UN 0x0
805 #define MVPP2_PRS_RI_L3_IP4 BIT(12)
806 #define MVPP2_PRS_RI_L3_IP4_OPT BIT(13)
807 #define MVPP2_PRS_RI_L3_IP4_OTHER (BIT(12) | BIT(13))
808 #define MVPP2_PRS_RI_L3_IP6 BIT(14)
809 #define MVPP2_PRS_RI_L3_IP6_EXT (BIT(12) | BIT(14))
810 #define MVPP2_PRS_RI_L3_ARP (BIT(13) | BIT(14))
811 #define MVPP2_PRS_RI_L3_ADDR_MASK (BIT(15) | BIT(16))
812 #define MVPP2_PRS_RI_L3_UCAST 0x0
813 #define MVPP2_PRS_RI_L3_MCAST BIT(15)
814 #define MVPP2_PRS_RI_L3_BCAST (BIT(15) | BIT(16))
815 #define MVPP2_PRS_RI_IP_FRAG_MASK 0x20000
816 #define MVPP2_PRS_RI_UDF3_MASK 0x300000
817 #define MVPP2_PRS_RI_UDF3_RX_SPECIAL BIT(21)
818 #define MVPP2_PRS_RI_L4_PROTO_MASK 0x1c00000
819 #define MVPP2_PRS_RI_L4_TCP BIT(22)
820 #define MVPP2_PRS_RI_L4_UDP BIT(23)
821 #define MVPP2_PRS_RI_L4_OTHER (BIT(22) | BIT(23))
822 #define MVPP2_PRS_RI_UDF7_MASK 0x60000000
823 #define MVPP2_PRS_RI_UDF7_IP6_LITE BIT(29)
824 #define MVPP2_PRS_RI_DROP_MASK 0x80000000
826 /* Sram additional info bits assignment */
827 #define MVPP2_PRS_IPV4_DIP_AI_BIT BIT(0)
828 #define MVPP2_PRS_IPV6_NO_EXT_AI_BIT BIT(0)
829 #define MVPP2_PRS_IPV6_EXT_AI_BIT BIT(1)
830 #define MVPP2_PRS_IPV6_EXT_AH_AI_BIT BIT(2)
831 #define MVPP2_PRS_IPV6_EXT_AH_LEN_AI_BIT BIT(3)
832 #define MVPP2_PRS_IPV6_EXT_AH_L4_AI_BIT BIT(4)
833 #define MVPP2_PRS_SINGLE_VLAN_AI 0
834 #define MVPP2_PRS_DBL_VLAN_AI_BIT BIT(7)
837 #define MVPP2_PRS_TAGGED true
838 #define MVPP2_PRS_UNTAGGED false
839 #define MVPP2_PRS_EDSA true
840 #define MVPP2_PRS_DSA false
842 /* MAC entries, shadow udf */
844 MVPP2_PRS_UDF_MAC_DEF,
845 MVPP2_PRS_UDF_MAC_RANGE,
846 MVPP2_PRS_UDF_L2_DEF,
847 MVPP2_PRS_UDF_L2_DEF_COPY,
848 MVPP2_PRS_UDF_L2_USER,
852 enum mvpp2_prs_lookup {
866 enum mvpp2_prs_l3_cast {
867 MVPP2_PRS_L3_UNI_CAST,
868 MVPP2_PRS_L3_MULTI_CAST,
869 MVPP2_PRS_L3_BROAD_CAST
872 /* Classifier constants */
873 #define MVPP2_CLS_FLOWS_TBL_SIZE 512
874 #define MVPP2_CLS_FLOWS_TBL_DATA_WORDS 3
875 #define MVPP2_CLS_LKP_TBL_SIZE 64
878 #define MVPP2_BM_POOLS_NUM 1
879 #define MVPP2_BM_LONG_BUF_NUM 16
880 #define MVPP2_BM_SHORT_BUF_NUM 16
881 #define MVPP2_BM_POOL_SIZE_MAX (16*1024 - MVPP2_BM_POOL_PTR_ALIGN/4)
882 #define MVPP2_BM_POOL_PTR_ALIGN 128
883 #define MVPP2_BM_SWF_LONG_POOL(port) 0
885 /* BM cookie (32 bits) definition */
886 #define MVPP2_BM_COOKIE_POOL_OFFS 8
887 #define MVPP2_BM_COOKIE_CPU_OFFS 24
889 /* BM short pool packet size
890 * These value assure that for SWF the total number
891 * of bytes allocated for each buffer will be 512
893 #define MVPP2_BM_SHORT_PKT_SIZE MVPP2_RX_MAX_PKT_SIZE(512)
903 /* Shared Packet Processor resources */
905 /* Shared registers' base addresses */
907 void __iomem *lms_base;
908 void __iomem *iface_base;
909 void __iomem *mdio_base;
911 void __iomem *mpcs_base;
912 void __iomem *xpcs_base;
913 void __iomem *rfu1_base;
917 /* List of pointers to port structures */
918 struct mvpp2_port **port_list;
920 /* Aggregated TXQs */
921 struct mvpp2_tx_queue *aggr_txqs;
924 struct mvpp2_bm_pool *bm_pools;
926 /* PRS shadow table */
927 struct mvpp2_prs_shadow *prs_shadow;
928 /* PRS auxiliary table for double vlan entries control */
929 bool *prs_double_vlans;
935 enum { MVPP21, MVPP22 } hw_version;
937 /* Maximum number of RXQs per port */
938 unsigned int max_port_rxqs;
945 struct mvpp2_pcpu_stats {
955 /* Index of the port from the "group of ports" complex point
964 /* Per-port registers' base address */
967 struct mvpp2_rx_queue **rxqs;
968 struct mvpp2_tx_queue **txqs;
972 u32 pending_cause_rx;
974 /* Per-CPU port control */
975 struct mvpp2_port_pcpu __percpu *pcpu;
982 struct mvpp2_pcpu_stats __percpu *stats;
984 struct phy_device *phy_dev;
985 phy_interface_t phy_interface;
993 unsigned int phy_speed; /* SGMII 1Gbps vs 2.5Gbps */
995 struct mvpp2_bm_pool *pool_long;
996 struct mvpp2_bm_pool *pool_short;
998 /* Index of first port's physical RXQ */
1001 u8 dev_addr[ETH_ALEN];
1004 /* The mvpp2_tx_desc and mvpp2_rx_desc structures describe the
1005 * layout of the transmit and reception DMA descriptors, and their
1006 * layout is therefore defined by the hardware design
1009 #define MVPP2_TXD_L3_OFF_SHIFT 0
1010 #define MVPP2_TXD_IP_HLEN_SHIFT 8
1011 #define MVPP2_TXD_L4_CSUM_FRAG BIT(13)
1012 #define MVPP2_TXD_L4_CSUM_NOT BIT(14)
1013 #define MVPP2_TXD_IP_CSUM_DISABLE BIT(15)
1014 #define MVPP2_TXD_PADDING_DISABLE BIT(23)
1015 #define MVPP2_TXD_L4_UDP BIT(24)
1016 #define MVPP2_TXD_L3_IP6 BIT(26)
1017 #define MVPP2_TXD_L_DESC BIT(28)
1018 #define MVPP2_TXD_F_DESC BIT(29)
1020 #define MVPP2_RXD_ERR_SUMMARY BIT(15)
1021 #define MVPP2_RXD_ERR_CODE_MASK (BIT(13) | BIT(14))
1022 #define MVPP2_RXD_ERR_CRC 0x0
1023 #define MVPP2_RXD_ERR_OVERRUN BIT(13)
1024 #define MVPP2_RXD_ERR_RESOURCE (BIT(13) | BIT(14))
1025 #define MVPP2_RXD_BM_POOL_ID_OFFS 16
1026 #define MVPP2_RXD_BM_POOL_ID_MASK (BIT(16) | BIT(17) | BIT(18))
1027 #define MVPP2_RXD_HWF_SYNC BIT(21)
1028 #define MVPP2_RXD_L4_CSUM_OK BIT(22)
1029 #define MVPP2_RXD_IP4_HEADER_ERR BIT(24)
1030 #define MVPP2_RXD_L4_TCP BIT(25)
1031 #define MVPP2_RXD_L4_UDP BIT(26)
1032 #define MVPP2_RXD_L3_IP4 BIT(28)
1033 #define MVPP2_RXD_L3_IP6 BIT(30)
1034 #define MVPP2_RXD_BUF_HDR BIT(31)
1036 /* HW TX descriptor for PPv2.1 */
1037 struct mvpp21_tx_desc {
1038 u32 command; /* Options used by HW for packet transmitting.*/
1039 u8 packet_offset; /* the offset from the buffer beginning */
1040 u8 phys_txq; /* destination queue ID */
1041 u16 data_size; /* data size of transmitted packet in bytes */
1042 u32 buf_dma_addr; /* physical addr of transmitted buffer */
1043 u32 buf_cookie; /* cookie for access to TX buffer in tx path */
1044 u32 reserved1[3]; /* hw_cmd (for future use, BM, PON, PNC) */
1045 u32 reserved2; /* reserved (for future use) */
1048 /* HW RX descriptor for PPv2.1 */
1049 struct mvpp21_rx_desc {
1050 u32 status; /* info about received packet */
1051 u16 reserved1; /* parser_info (for future use, PnC) */
1052 u16 data_size; /* size of received packet in bytes */
1053 u32 buf_dma_addr; /* physical address of the buffer */
1054 u32 buf_cookie; /* cookie for access to RX buffer in rx path */
1055 u16 reserved2; /* gem_port_id (for future use, PON) */
1056 u16 reserved3; /* csum_l4 (for future use, PnC) */
1057 u8 reserved4; /* bm_qset (for future use, BM) */
1059 u16 reserved6; /* classify_info (for future use, PnC) */
1060 u32 reserved7; /* flow_id (for future use, PnC) */
1064 /* HW TX descriptor for PPv2.2 */
1065 struct mvpp22_tx_desc {
1071 u64 buf_dma_addr_ptp;
1072 u64 buf_cookie_misc;
1075 /* HW RX descriptor for PPv2.2 */
1076 struct mvpp22_rx_desc {
1082 u64 buf_dma_addr_key_hash;
1083 u64 buf_cookie_misc;
1086 /* Opaque type used by the driver to manipulate the HW TX and RX
1089 struct mvpp2_tx_desc {
1091 struct mvpp21_tx_desc pp21;
1092 struct mvpp22_tx_desc pp22;
1096 struct mvpp2_rx_desc {
1098 struct mvpp21_rx_desc pp21;
1099 struct mvpp22_rx_desc pp22;
1103 /* Per-CPU Tx queue control */
1104 struct mvpp2_txq_pcpu {
1107 /* Number of Tx DMA descriptors in the descriptor ring */
1110 /* Number of currently used Tx DMA descriptor in the
1115 /* Number of Tx DMA descriptors reserved for each CPU */
1118 /* Index of last TX DMA descriptor that was inserted */
1121 /* Index of the TX DMA descriptor to be cleaned up */
1125 struct mvpp2_tx_queue {
1126 /* Physical number of this Tx queue */
1129 /* Logical number of this Tx queue */
1132 /* Number of Tx DMA descriptors in the descriptor ring */
1135 /* Number of currently used Tx DMA descriptor in the descriptor ring */
1138 /* Per-CPU control of physical Tx queues */
1139 struct mvpp2_txq_pcpu __percpu *pcpu;
1143 /* Virtual address of thex Tx DMA descriptors array */
1144 struct mvpp2_tx_desc *descs;
1146 /* DMA address of the Tx DMA descriptors array */
1147 dma_addr_t descs_dma;
1149 /* Index of the last Tx DMA descriptor */
1152 /* Index of the next Tx DMA descriptor to process */
1153 int next_desc_to_proc;
1156 struct mvpp2_rx_queue {
1157 /* RX queue number, in the range 0-31 for physical RXQs */
1160 /* Num of rx descriptors in the rx descriptor ring */
1166 /* Virtual address of the RX DMA descriptors array */
1167 struct mvpp2_rx_desc *descs;
1169 /* DMA address of the RX DMA descriptors array */
1170 dma_addr_t descs_dma;
1172 /* Index of the last RX DMA descriptor */
1175 /* Index of the next RX DMA descriptor to process */
1176 int next_desc_to_proc;
1178 /* ID of port to which physical RXQ is mapped */
1181 /* Port's logic RXQ number to which physical RXQ is mapped */
1185 union mvpp2_prs_tcam_entry {
1186 u32 word[MVPP2_PRS_TCAM_WORDS];
1187 u8 byte[MVPP2_PRS_TCAM_WORDS * 4];
1190 union mvpp2_prs_sram_entry {
1191 u32 word[MVPP2_PRS_SRAM_WORDS];
1192 u8 byte[MVPP2_PRS_SRAM_WORDS * 4];
1195 struct mvpp2_prs_entry {
1197 union mvpp2_prs_tcam_entry tcam;
1198 union mvpp2_prs_sram_entry sram;
1201 struct mvpp2_prs_shadow {
1208 /* User defined offset */
1216 struct mvpp2_cls_flow_entry {
1218 u32 data[MVPP2_CLS_FLOWS_TBL_DATA_WORDS];
1221 struct mvpp2_cls_lookup_entry {
1227 struct mvpp2_bm_pool {
1228 /* Pool number in the range 0-7 */
1230 enum mvpp2_bm_type type;
1232 /* Buffer Pointers Pool External (BPPE) size */
1234 /* Number of buffers for this pool */
1236 /* Pool buffer size */
1241 /* BPPE virtual base address */
1242 unsigned long *virt_addr;
1243 /* BPPE DMA base address */
1244 dma_addr_t dma_addr;
1246 /* Ports using BM pool */
1250 /* Static declaractions */
1252 /* Number of RXQs used by single port */
1253 static int rxq_number = MVPP2_DEFAULT_RXQ;
1254 /* Number of TXQs used by single port */
1255 static int txq_number = MVPP2_DEFAULT_TXQ;
1259 #define MVPP2_DRIVER_NAME "mvpp2"
1260 #define MVPP2_DRIVER_VERSION "1.0"
1263 * U-Boot internal data, mostly uncached buffers for descriptors and data
1265 struct buffer_location {
1266 struct mvpp2_tx_desc *aggr_tx_descs;
1267 struct mvpp2_tx_desc *tx_descs;
1268 struct mvpp2_rx_desc *rx_descs;
1269 unsigned long *bm_pool[MVPP2_BM_POOLS_NUM];
1270 unsigned long *rx_buffer[MVPP2_BM_LONG_BUF_NUM];
1275 * All 4 interfaces use the same global buffer, since only one interface
1276 * can be enabled at once
1278 static struct buffer_location buffer_loc;
1281 * Page table entries are set to 1MB, or multiples of 1MB
1282 * (not < 1MB). driver uses less bd's so use 1MB bdspace.
1284 #define BD_SPACE (1 << 20)
1286 /* Utility/helper methods */
1288 static void mvpp2_write(struct mvpp2 *priv, u32 offset, u32 data)
1290 writel(data, priv->base + offset);
1293 static u32 mvpp2_read(struct mvpp2 *priv, u32 offset)
1295 return readl(priv->base + offset);
1298 static void mvpp2_txdesc_dma_addr_set(struct mvpp2_port *port,
1299 struct mvpp2_tx_desc *tx_desc,
1300 dma_addr_t dma_addr)
1302 if (port->priv->hw_version == MVPP21) {
1303 tx_desc->pp21.buf_dma_addr = dma_addr;
1305 u64 val = (u64)dma_addr;
1307 tx_desc->pp22.buf_dma_addr_ptp &= ~GENMASK_ULL(40, 0);
1308 tx_desc->pp22.buf_dma_addr_ptp |= val;
1312 static void mvpp2_txdesc_size_set(struct mvpp2_port *port,
1313 struct mvpp2_tx_desc *tx_desc,
1316 if (port->priv->hw_version == MVPP21)
1317 tx_desc->pp21.data_size = size;
1319 tx_desc->pp22.data_size = size;
1322 static void mvpp2_txdesc_txq_set(struct mvpp2_port *port,
1323 struct mvpp2_tx_desc *tx_desc,
1326 if (port->priv->hw_version == MVPP21)
1327 tx_desc->pp21.phys_txq = txq;
1329 tx_desc->pp22.phys_txq = txq;
1332 static void mvpp2_txdesc_cmd_set(struct mvpp2_port *port,
1333 struct mvpp2_tx_desc *tx_desc,
1334 unsigned int command)
1336 if (port->priv->hw_version == MVPP21)
1337 tx_desc->pp21.command = command;
1339 tx_desc->pp22.command = command;
1342 static void mvpp2_txdesc_offset_set(struct mvpp2_port *port,
1343 struct mvpp2_tx_desc *tx_desc,
1344 unsigned int offset)
1346 if (port->priv->hw_version == MVPP21)
1347 tx_desc->pp21.packet_offset = offset;
1349 tx_desc->pp22.packet_offset = offset;
1352 static dma_addr_t mvpp2_rxdesc_dma_addr_get(struct mvpp2_port *port,
1353 struct mvpp2_rx_desc *rx_desc)
1355 if (port->priv->hw_version == MVPP21)
1356 return rx_desc->pp21.buf_dma_addr;
1358 return rx_desc->pp22.buf_dma_addr_key_hash & GENMASK_ULL(40, 0);
1361 static unsigned long mvpp2_rxdesc_cookie_get(struct mvpp2_port *port,
1362 struct mvpp2_rx_desc *rx_desc)
1364 if (port->priv->hw_version == MVPP21)
1365 return rx_desc->pp21.buf_cookie;
1367 return rx_desc->pp22.buf_cookie_misc & GENMASK_ULL(40, 0);
1370 static size_t mvpp2_rxdesc_size_get(struct mvpp2_port *port,
1371 struct mvpp2_rx_desc *rx_desc)
1373 if (port->priv->hw_version == MVPP21)
1374 return rx_desc->pp21.data_size;
1376 return rx_desc->pp22.data_size;
1379 static u32 mvpp2_rxdesc_status_get(struct mvpp2_port *port,
1380 struct mvpp2_rx_desc *rx_desc)
1382 if (port->priv->hw_version == MVPP21)
1383 return rx_desc->pp21.status;
1385 return rx_desc->pp22.status;
1388 static void mvpp2_txq_inc_get(struct mvpp2_txq_pcpu *txq_pcpu)
1390 txq_pcpu->txq_get_index++;
1391 if (txq_pcpu->txq_get_index == txq_pcpu->size)
1392 txq_pcpu->txq_get_index = 0;
1395 /* Get number of physical egress port */
1396 static inline int mvpp2_egress_port(struct mvpp2_port *port)
1398 return MVPP2_MAX_TCONT + port->id;
1401 /* Get number of physical TXQ */
1402 static inline int mvpp2_txq_phys(int port, int txq)
1404 return (MVPP2_MAX_TCONT + port) * MVPP2_MAX_TXQ + txq;
1407 /* Parser configuration routines */
1409 /* Update parser tcam and sram hw entries */
1410 static int mvpp2_prs_hw_write(struct mvpp2 *priv, struct mvpp2_prs_entry *pe)
1414 if (pe->index > MVPP2_PRS_TCAM_SRAM_SIZE - 1)
1417 /* Clear entry invalidation bit */
1418 pe->tcam.word[MVPP2_PRS_TCAM_INV_WORD] &= ~MVPP2_PRS_TCAM_INV_MASK;
1420 /* Write tcam index - indirect access */
1421 mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, pe->index);
1422 for (i = 0; i < MVPP2_PRS_TCAM_WORDS; i++)
1423 mvpp2_write(priv, MVPP2_PRS_TCAM_DATA_REG(i), pe->tcam.word[i]);
1425 /* Write sram index - indirect access */
1426 mvpp2_write(priv, MVPP2_PRS_SRAM_IDX_REG, pe->index);
1427 for (i = 0; i < MVPP2_PRS_SRAM_WORDS; i++)
1428 mvpp2_write(priv, MVPP2_PRS_SRAM_DATA_REG(i), pe->sram.word[i]);
1433 /* Read tcam entry from hw */
1434 static int mvpp2_prs_hw_read(struct mvpp2 *priv, struct mvpp2_prs_entry *pe)
1438 if (pe->index > MVPP2_PRS_TCAM_SRAM_SIZE - 1)
1441 /* Write tcam index - indirect access */
1442 mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, pe->index);
1444 pe->tcam.word[MVPP2_PRS_TCAM_INV_WORD] = mvpp2_read(priv,
1445 MVPP2_PRS_TCAM_DATA_REG(MVPP2_PRS_TCAM_INV_WORD));
1446 if (pe->tcam.word[MVPP2_PRS_TCAM_INV_WORD] & MVPP2_PRS_TCAM_INV_MASK)
1447 return MVPP2_PRS_TCAM_ENTRY_INVALID;
1449 for (i = 0; i < MVPP2_PRS_TCAM_WORDS; i++)
1450 pe->tcam.word[i] = mvpp2_read(priv, MVPP2_PRS_TCAM_DATA_REG(i));
1452 /* Write sram index - indirect access */
1453 mvpp2_write(priv, MVPP2_PRS_SRAM_IDX_REG, pe->index);
1454 for (i = 0; i < MVPP2_PRS_SRAM_WORDS; i++)
1455 pe->sram.word[i] = mvpp2_read(priv, MVPP2_PRS_SRAM_DATA_REG(i));
1460 /* Invalidate tcam hw entry */
1461 static void mvpp2_prs_hw_inv(struct mvpp2 *priv, int index)
1463 /* Write index - indirect access */
1464 mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, index);
1465 mvpp2_write(priv, MVPP2_PRS_TCAM_DATA_REG(MVPP2_PRS_TCAM_INV_WORD),
1466 MVPP2_PRS_TCAM_INV_MASK);
1469 /* Enable shadow table entry and set its lookup ID */
1470 static void mvpp2_prs_shadow_set(struct mvpp2 *priv, int index, int lu)
1472 priv->prs_shadow[index].valid = true;
1473 priv->prs_shadow[index].lu = lu;
1476 /* Update ri fields in shadow table entry */
1477 static void mvpp2_prs_shadow_ri_set(struct mvpp2 *priv, int index,
1478 unsigned int ri, unsigned int ri_mask)
1480 priv->prs_shadow[index].ri_mask = ri_mask;
1481 priv->prs_shadow[index].ri = ri;
1484 /* Update lookup field in tcam sw entry */
1485 static void mvpp2_prs_tcam_lu_set(struct mvpp2_prs_entry *pe, unsigned int lu)
1487 int enable_off = MVPP2_PRS_TCAM_EN_OFFS(MVPP2_PRS_TCAM_LU_BYTE);
1489 pe->tcam.byte[MVPP2_PRS_TCAM_LU_BYTE] = lu;
1490 pe->tcam.byte[enable_off] = MVPP2_PRS_LU_MASK;
1493 /* Update mask for single port in tcam sw entry */
1494 static void mvpp2_prs_tcam_port_set(struct mvpp2_prs_entry *pe,
1495 unsigned int port, bool add)
1497 int enable_off = MVPP2_PRS_TCAM_EN_OFFS(MVPP2_PRS_TCAM_PORT_BYTE);
1500 pe->tcam.byte[enable_off] &= ~(1 << port);
1502 pe->tcam.byte[enable_off] |= 1 << port;
1505 /* Update port map in tcam sw entry */
1506 static void mvpp2_prs_tcam_port_map_set(struct mvpp2_prs_entry *pe,
1509 unsigned char port_mask = MVPP2_PRS_PORT_MASK;
1510 int enable_off = MVPP2_PRS_TCAM_EN_OFFS(MVPP2_PRS_TCAM_PORT_BYTE);
1512 pe->tcam.byte[MVPP2_PRS_TCAM_PORT_BYTE] = 0;
1513 pe->tcam.byte[enable_off] &= ~port_mask;
1514 pe->tcam.byte[enable_off] |= ~ports & MVPP2_PRS_PORT_MASK;
1517 /* Obtain port map from tcam sw entry */
1518 static unsigned int mvpp2_prs_tcam_port_map_get(struct mvpp2_prs_entry *pe)
1520 int enable_off = MVPP2_PRS_TCAM_EN_OFFS(MVPP2_PRS_TCAM_PORT_BYTE);
1522 return ~(pe->tcam.byte[enable_off]) & MVPP2_PRS_PORT_MASK;
1525 /* Set byte of data and its enable bits in tcam sw entry */
1526 static void mvpp2_prs_tcam_data_byte_set(struct mvpp2_prs_entry *pe,
1527 unsigned int offs, unsigned char byte,
1528 unsigned char enable)
1530 pe->tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE(offs)] = byte;
1531 pe->tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE_EN(offs)] = enable;
1534 /* Get byte of data and its enable bits from tcam sw entry */
1535 static void mvpp2_prs_tcam_data_byte_get(struct mvpp2_prs_entry *pe,
1536 unsigned int offs, unsigned char *byte,
1537 unsigned char *enable)
1539 *byte = pe->tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE(offs)];
1540 *enable = pe->tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE_EN(offs)];
1543 /* Set ethertype in tcam sw entry */
1544 static void mvpp2_prs_match_etype(struct mvpp2_prs_entry *pe, int offset,
1545 unsigned short ethertype)
1547 mvpp2_prs_tcam_data_byte_set(pe, offset + 0, ethertype >> 8, 0xff);
1548 mvpp2_prs_tcam_data_byte_set(pe, offset + 1, ethertype & 0xff, 0xff);
1551 /* Set bits in sram sw entry */
1552 static void mvpp2_prs_sram_bits_set(struct mvpp2_prs_entry *pe, int bit_num,
1555 pe->sram.byte[MVPP2_BIT_TO_BYTE(bit_num)] |= (val << (bit_num % 8));
1558 /* Clear bits in sram sw entry */
1559 static void mvpp2_prs_sram_bits_clear(struct mvpp2_prs_entry *pe, int bit_num,
1562 pe->sram.byte[MVPP2_BIT_TO_BYTE(bit_num)] &= ~(val << (bit_num % 8));
1565 /* Update ri bits in sram sw entry */
1566 static void mvpp2_prs_sram_ri_update(struct mvpp2_prs_entry *pe,
1567 unsigned int bits, unsigned int mask)
1571 for (i = 0; i < MVPP2_PRS_SRAM_RI_CTRL_BITS; i++) {
1572 int ri_off = MVPP2_PRS_SRAM_RI_OFFS;
1574 if (!(mask & BIT(i)))
1578 mvpp2_prs_sram_bits_set(pe, ri_off + i, 1);
1580 mvpp2_prs_sram_bits_clear(pe, ri_off + i, 1);
1582 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_RI_CTRL_OFFS + i, 1);
1586 /* Update ai bits in sram sw entry */
1587 static void mvpp2_prs_sram_ai_update(struct mvpp2_prs_entry *pe,
1588 unsigned int bits, unsigned int mask)
1591 int ai_off = MVPP2_PRS_SRAM_AI_OFFS;
1593 for (i = 0; i < MVPP2_PRS_SRAM_AI_CTRL_BITS; i++) {
1595 if (!(mask & BIT(i)))
1599 mvpp2_prs_sram_bits_set(pe, ai_off + i, 1);
1601 mvpp2_prs_sram_bits_clear(pe, ai_off + i, 1);
1603 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_AI_CTRL_OFFS + i, 1);
1607 /* Read ai bits from sram sw entry */
1608 static int mvpp2_prs_sram_ai_get(struct mvpp2_prs_entry *pe)
1611 int ai_off = MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_AI_OFFS);
1612 int ai_en_off = ai_off + 1;
1613 int ai_shift = MVPP2_PRS_SRAM_AI_OFFS % 8;
1615 bits = (pe->sram.byte[ai_off] >> ai_shift) |
1616 (pe->sram.byte[ai_en_off] << (8 - ai_shift));
1621 /* In sram sw entry set lookup ID field of the tcam key to be used in the next
1624 static void mvpp2_prs_sram_next_lu_set(struct mvpp2_prs_entry *pe,
1627 int sram_next_off = MVPP2_PRS_SRAM_NEXT_LU_OFFS;
1629 mvpp2_prs_sram_bits_clear(pe, sram_next_off,
1630 MVPP2_PRS_SRAM_NEXT_LU_MASK);
1631 mvpp2_prs_sram_bits_set(pe, sram_next_off, lu);
1634 /* In the sram sw entry set sign and value of the next lookup offset
1635 * and the offset value generated to the classifier
1637 static void mvpp2_prs_sram_shift_set(struct mvpp2_prs_entry *pe, int shift,
1642 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_SHIFT_SIGN_BIT, 1);
1645 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_SHIFT_SIGN_BIT, 1);
1649 pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_SHIFT_OFFS)] =
1650 (unsigned char)shift;
1652 /* Reset and set operation */
1653 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_SHIFT_OFFS,
1654 MVPP2_PRS_SRAM_OP_SEL_SHIFT_MASK);
1655 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_OP_SEL_SHIFT_OFFS, op);
1657 /* Set base offset as current */
1658 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_BASE_OFFS, 1);
1661 /* In the sram sw entry set sign and value of the user defined offset
1662 * generated to the classifier
1664 static void mvpp2_prs_sram_offset_set(struct mvpp2_prs_entry *pe,
1665 unsigned int type, int offset,
1670 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_UDF_SIGN_BIT, 1);
1671 offset = 0 - offset;
1673 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_UDF_SIGN_BIT, 1);
1677 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_UDF_OFFS,
1678 MVPP2_PRS_SRAM_UDF_MASK);
1679 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_UDF_OFFS, offset);
1680 pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_UDF_OFFS +
1681 MVPP2_PRS_SRAM_UDF_BITS)] &=
1682 ~(MVPP2_PRS_SRAM_UDF_MASK >> (8 - (MVPP2_PRS_SRAM_UDF_OFFS % 8)));
1683 pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_UDF_OFFS +
1684 MVPP2_PRS_SRAM_UDF_BITS)] |=
1685 (offset >> (8 - (MVPP2_PRS_SRAM_UDF_OFFS % 8)));
1687 /* Set offset type */
1688 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_UDF_TYPE_OFFS,
1689 MVPP2_PRS_SRAM_UDF_TYPE_MASK);
1690 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_UDF_TYPE_OFFS, type);
1692 /* Set offset operation */
1693 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS,
1694 MVPP2_PRS_SRAM_OP_SEL_UDF_MASK);
1695 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS, op);
1697 pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS +
1698 MVPP2_PRS_SRAM_OP_SEL_UDF_BITS)] &=
1699 ~(MVPP2_PRS_SRAM_OP_SEL_UDF_MASK >>
1700 (8 - (MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS % 8)));
1702 pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS +
1703 MVPP2_PRS_SRAM_OP_SEL_UDF_BITS)] |=
1704 (op >> (8 - (MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS % 8)));
1706 /* Set base offset as current */
1707 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_BASE_OFFS, 1);
1710 /* Find parser flow entry */
1711 static struct mvpp2_prs_entry *mvpp2_prs_flow_find(struct mvpp2 *priv, int flow)
1713 struct mvpp2_prs_entry *pe;
1716 pe = kzalloc(sizeof(*pe), GFP_KERNEL);
1719 mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_FLOWS);
1721 /* Go through the all entires with MVPP2_PRS_LU_FLOWS */
1722 for (tid = MVPP2_PRS_TCAM_SRAM_SIZE - 1; tid >= 0; tid--) {
1725 if (!priv->prs_shadow[tid].valid ||
1726 priv->prs_shadow[tid].lu != MVPP2_PRS_LU_FLOWS)
1730 mvpp2_prs_hw_read(priv, pe);
1731 bits = mvpp2_prs_sram_ai_get(pe);
1733 /* Sram store classification lookup ID in AI bits [5:0] */
1734 if ((bits & MVPP2_PRS_FLOW_ID_MASK) == flow)
1742 /* Return first free tcam index, seeking from start to end */
1743 static int mvpp2_prs_tcam_first_free(struct mvpp2 *priv, unsigned char start,
1751 if (end >= MVPP2_PRS_TCAM_SRAM_SIZE)
1752 end = MVPP2_PRS_TCAM_SRAM_SIZE - 1;
1754 for (tid = start; tid <= end; tid++) {
1755 if (!priv->prs_shadow[tid].valid)
1762 /* Enable/disable dropping all mac da's */
1763 static void mvpp2_prs_mac_drop_all_set(struct mvpp2 *priv, int port, bool add)
1765 struct mvpp2_prs_entry pe;
1767 if (priv->prs_shadow[MVPP2_PE_DROP_ALL].valid) {
1768 /* Entry exist - update port only */
1769 pe.index = MVPP2_PE_DROP_ALL;
1770 mvpp2_prs_hw_read(priv, &pe);
1772 /* Entry doesn't exist - create new */
1773 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1774 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC);
1775 pe.index = MVPP2_PE_DROP_ALL;
1777 /* Non-promiscuous mode for all ports - DROP unknown packets */
1778 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_DROP_MASK,
1779 MVPP2_PRS_RI_DROP_MASK);
1781 mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
1782 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
1784 /* Update shadow table */
1785 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC);
1787 /* Mask all ports */
1788 mvpp2_prs_tcam_port_map_set(&pe, 0);
1791 /* Update port mask */
1792 mvpp2_prs_tcam_port_set(&pe, port, add);
1794 mvpp2_prs_hw_write(priv, &pe);
1797 /* Set port to promiscuous mode */
1798 static void mvpp2_prs_mac_promisc_set(struct mvpp2 *priv, int port, bool add)
1800 struct mvpp2_prs_entry pe;
1802 /* Promiscuous mode - Accept unknown packets */
1804 if (priv->prs_shadow[MVPP2_PE_MAC_PROMISCUOUS].valid) {
1805 /* Entry exist - update port only */
1806 pe.index = MVPP2_PE_MAC_PROMISCUOUS;
1807 mvpp2_prs_hw_read(priv, &pe);
1809 /* Entry doesn't exist - create new */
1810 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1811 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC);
1812 pe.index = MVPP2_PE_MAC_PROMISCUOUS;
1814 /* Continue - set next lookup */
1815 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_DSA);
1817 /* Set result info bits */
1818 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L2_UCAST,
1819 MVPP2_PRS_RI_L2_CAST_MASK);
1821 /* Shift to ethertype */
1822 mvpp2_prs_sram_shift_set(&pe, 2 * ETH_ALEN,
1823 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
1825 /* Mask all ports */
1826 mvpp2_prs_tcam_port_map_set(&pe, 0);
1828 /* Update shadow table */
1829 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC);
1832 /* Update port mask */
1833 mvpp2_prs_tcam_port_set(&pe, port, add);
1835 mvpp2_prs_hw_write(priv, &pe);
1838 /* Accept multicast */
1839 static void mvpp2_prs_mac_multi_set(struct mvpp2 *priv, int port, int index,
1842 struct mvpp2_prs_entry pe;
1843 unsigned char da_mc;
1845 /* Ethernet multicast address first byte is
1846 * 0x01 for IPv4 and 0x33 for IPv6
1848 da_mc = (index == MVPP2_PE_MAC_MC_ALL) ? 0x01 : 0x33;
1850 if (priv->prs_shadow[index].valid) {
1851 /* Entry exist - update port only */
1853 mvpp2_prs_hw_read(priv, &pe);
1855 /* Entry doesn't exist - create new */
1856 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1857 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC);
1860 /* Continue - set next lookup */
1861 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_DSA);
1863 /* Set result info bits */
1864 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L2_MCAST,
1865 MVPP2_PRS_RI_L2_CAST_MASK);
1867 /* Update tcam entry data first byte */
1868 mvpp2_prs_tcam_data_byte_set(&pe, 0, da_mc, 0xff);
1870 /* Shift to ethertype */
1871 mvpp2_prs_sram_shift_set(&pe, 2 * ETH_ALEN,
1872 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
1874 /* Mask all ports */
1875 mvpp2_prs_tcam_port_map_set(&pe, 0);
1877 /* Update shadow table */
1878 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC);
1881 /* Update port mask */
1882 mvpp2_prs_tcam_port_set(&pe, port, add);
1884 mvpp2_prs_hw_write(priv, &pe);
1887 /* Parser per-port initialization */
1888 static void mvpp2_prs_hw_port_init(struct mvpp2 *priv, int port, int lu_first,
1889 int lu_max, int offset)
1894 val = mvpp2_read(priv, MVPP2_PRS_INIT_LOOKUP_REG);
1895 val &= ~MVPP2_PRS_PORT_LU_MASK(port);
1896 val |= MVPP2_PRS_PORT_LU_VAL(port, lu_first);
1897 mvpp2_write(priv, MVPP2_PRS_INIT_LOOKUP_REG, val);
1899 /* Set maximum number of loops for packet received from port */
1900 val = mvpp2_read(priv, MVPP2_PRS_MAX_LOOP_REG(port));
1901 val &= ~MVPP2_PRS_MAX_LOOP_MASK(port);
1902 val |= MVPP2_PRS_MAX_LOOP_VAL(port, lu_max);
1903 mvpp2_write(priv, MVPP2_PRS_MAX_LOOP_REG(port), val);
1905 /* Set initial offset for packet header extraction for the first
1908 val = mvpp2_read(priv, MVPP2_PRS_INIT_OFFS_REG(port));
1909 val &= ~MVPP2_PRS_INIT_OFF_MASK(port);
1910 val |= MVPP2_PRS_INIT_OFF_VAL(port, offset);
1911 mvpp2_write(priv, MVPP2_PRS_INIT_OFFS_REG(port), val);
1914 /* Default flow entries initialization for all ports */
1915 static void mvpp2_prs_def_flow_init(struct mvpp2 *priv)
1917 struct mvpp2_prs_entry pe;
1920 for (port = 0; port < MVPP2_MAX_PORTS; port++) {
1921 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1922 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
1923 pe.index = MVPP2_PE_FIRST_DEFAULT_FLOW - port;
1925 /* Mask all ports */
1926 mvpp2_prs_tcam_port_map_set(&pe, 0);
1929 mvpp2_prs_sram_ai_update(&pe, port, MVPP2_PRS_FLOW_ID_MASK);
1930 mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_DONE_BIT, 1);
1932 /* Update shadow table and hw entry */
1933 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_FLOWS);
1934 mvpp2_prs_hw_write(priv, &pe);
1938 /* Set default entry for Marvell Header field */
1939 static void mvpp2_prs_mh_init(struct mvpp2 *priv)
1941 struct mvpp2_prs_entry pe;
1943 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1945 pe.index = MVPP2_PE_MH_DEFAULT;
1946 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MH);
1947 mvpp2_prs_sram_shift_set(&pe, MVPP2_MH_SIZE,
1948 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
1949 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_MAC);
1951 /* Unmask all ports */
1952 mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
1954 /* Update shadow table and hw entry */
1955 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MH);
1956 mvpp2_prs_hw_write(priv, &pe);
1959 /* Set default entires (place holder) for promiscuous, non-promiscuous and
1960 * multicast MAC addresses
1962 static void mvpp2_prs_mac_init(struct mvpp2 *priv)
1964 struct mvpp2_prs_entry pe;
1966 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1968 /* Non-promiscuous mode for all ports - DROP unknown packets */
1969 pe.index = MVPP2_PE_MAC_NON_PROMISCUOUS;
1970 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC);
1972 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_DROP_MASK,
1973 MVPP2_PRS_RI_DROP_MASK);
1974 mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
1975 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
1977 /* Unmask all ports */
1978 mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
1980 /* Update shadow table and hw entry */
1981 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC);
1982 mvpp2_prs_hw_write(priv, &pe);
1984 /* place holders only - no ports */
1985 mvpp2_prs_mac_drop_all_set(priv, 0, false);
1986 mvpp2_prs_mac_promisc_set(priv, 0, false);
1987 mvpp2_prs_mac_multi_set(priv, MVPP2_PE_MAC_MC_ALL, 0, false);
1988 mvpp2_prs_mac_multi_set(priv, MVPP2_PE_MAC_MC_IP6, 0, false);
1991 /* Match basic ethertypes */
1992 static int mvpp2_prs_etype_init(struct mvpp2 *priv)
1994 struct mvpp2_prs_entry pe;
1997 /* Ethertype: PPPoE */
1998 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
1999 MVPP2_PE_LAST_FREE_TID);
2003 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
2004 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
2007 mvpp2_prs_match_etype(&pe, 0, PROT_PPP_SES);
2009 mvpp2_prs_sram_shift_set(&pe, MVPP2_PPPOE_HDR_SIZE,
2010 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
2011 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_PPPOE);
2012 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_PPPOE_MASK,
2013 MVPP2_PRS_RI_PPPOE_MASK);
2015 /* Update shadow table and hw entry */
2016 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
2017 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
2018 priv->prs_shadow[pe.index].finish = false;
2019 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_PPPOE_MASK,
2020 MVPP2_PRS_RI_PPPOE_MASK);
2021 mvpp2_prs_hw_write(priv, &pe);
2023 /* Ethertype: ARP */
2024 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
2025 MVPP2_PE_LAST_FREE_TID);
2029 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
2030 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
2033 mvpp2_prs_match_etype(&pe, 0, PROT_ARP);
2035 /* Generate flow in the next iteration*/
2036 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
2037 mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
2038 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_ARP,
2039 MVPP2_PRS_RI_L3_PROTO_MASK);
2041 mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
2043 MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
2045 /* Update shadow table and hw entry */
2046 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
2047 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
2048 priv->prs_shadow[pe.index].finish = true;
2049 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_ARP,
2050 MVPP2_PRS_RI_L3_PROTO_MASK);
2051 mvpp2_prs_hw_write(priv, &pe);
2053 /* Ethertype: LBTD */
2054 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
2055 MVPP2_PE_LAST_FREE_TID);
2059 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
2060 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
2063 mvpp2_prs_match_etype(&pe, 0, MVPP2_IP_LBDT_TYPE);
2065 /* Generate flow in the next iteration*/
2066 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
2067 mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
2068 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_CPU_CODE_RX_SPEC |
2069 MVPP2_PRS_RI_UDF3_RX_SPECIAL,
2070 MVPP2_PRS_RI_CPU_CODE_MASK |
2071 MVPP2_PRS_RI_UDF3_MASK);
2073 mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
2075 MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
2077 /* Update shadow table and hw entry */
2078 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
2079 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
2080 priv->prs_shadow[pe.index].finish = true;
2081 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_CPU_CODE_RX_SPEC |
2082 MVPP2_PRS_RI_UDF3_RX_SPECIAL,
2083 MVPP2_PRS_RI_CPU_CODE_MASK |
2084 MVPP2_PRS_RI_UDF3_MASK);
2085 mvpp2_prs_hw_write(priv, &pe);
2087 /* Ethertype: IPv4 without options */
2088 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
2089 MVPP2_PE_LAST_FREE_TID);
2093 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
2094 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
2097 mvpp2_prs_match_etype(&pe, 0, PROT_IP);
2098 mvpp2_prs_tcam_data_byte_set(&pe, MVPP2_ETH_TYPE_LEN,
2099 MVPP2_PRS_IPV4_HEAD | MVPP2_PRS_IPV4_IHL,
2100 MVPP2_PRS_IPV4_HEAD_MASK |
2101 MVPP2_PRS_IPV4_IHL_MASK);
2103 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP4);
2104 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_IP4,
2105 MVPP2_PRS_RI_L3_PROTO_MASK);
2106 /* Skip eth_type + 4 bytes of IP header */
2107 mvpp2_prs_sram_shift_set(&pe, MVPP2_ETH_TYPE_LEN + 4,
2108 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
2110 mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
2112 MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
2114 /* Update shadow table and hw entry */
2115 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
2116 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
2117 priv->prs_shadow[pe.index].finish = false;
2118 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_IP4,
2119 MVPP2_PRS_RI_L3_PROTO_MASK);
2120 mvpp2_prs_hw_write(priv, &pe);
2122 /* Ethertype: IPv4 with options */
2123 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
2124 MVPP2_PE_LAST_FREE_TID);
2130 /* Clear tcam data before updating */
2131 pe.tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE(MVPP2_ETH_TYPE_LEN)] = 0x0;
2132 pe.tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE_EN(MVPP2_ETH_TYPE_LEN)] = 0x0;
2134 mvpp2_prs_tcam_data_byte_set(&pe, MVPP2_ETH_TYPE_LEN,
2135 MVPP2_PRS_IPV4_HEAD,
2136 MVPP2_PRS_IPV4_HEAD_MASK);
2138 /* Clear ri before updating */
2139 pe.sram.word[MVPP2_PRS_SRAM_RI_WORD] = 0x0;
2140 pe.sram.word[MVPP2_PRS_SRAM_RI_CTRL_WORD] = 0x0;
2141 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_IP4_OPT,
2142 MVPP2_PRS_RI_L3_PROTO_MASK);
2144 /* Update shadow table and hw entry */
2145 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
2146 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
2147 priv->prs_shadow[pe.index].finish = false;
2148 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_IP4_OPT,
2149 MVPP2_PRS_RI_L3_PROTO_MASK);
2150 mvpp2_prs_hw_write(priv, &pe);
2152 /* Ethertype: IPv6 without options */
2153 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
2154 MVPP2_PE_LAST_FREE_TID);
2158 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
2159 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
2162 mvpp2_prs_match_etype(&pe, 0, PROT_IPV6);
2164 /* Skip DIP of IPV6 header */
2165 mvpp2_prs_sram_shift_set(&pe, MVPP2_ETH_TYPE_LEN + 8 +
2166 MVPP2_MAX_L3_ADDR_SIZE,
2167 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
2168 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP6);
2169 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_IP6,
2170 MVPP2_PRS_RI_L3_PROTO_MASK);
2172 mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
2174 MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
2176 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
2177 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
2178 priv->prs_shadow[pe.index].finish = false;
2179 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_IP6,
2180 MVPP2_PRS_RI_L3_PROTO_MASK);
2181 mvpp2_prs_hw_write(priv, &pe);
2183 /* Default entry for MVPP2_PRS_LU_L2 - Unknown ethtype */
2184 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
2185 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
2186 pe.index = MVPP2_PE_ETH_TYPE_UN;
2188 /* Unmask all ports */
2189 mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
2191 /* Generate flow in the next iteration*/
2192 mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
2193 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
2194 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_UN,
2195 MVPP2_PRS_RI_L3_PROTO_MASK);
2196 /* Set L3 offset even it's unknown L3 */
2197 mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
2199 MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
2201 /* Update shadow table and hw entry */
2202 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
2203 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
2204 priv->prs_shadow[pe.index].finish = true;
2205 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_UN,
2206 MVPP2_PRS_RI_L3_PROTO_MASK);
2207 mvpp2_prs_hw_write(priv, &pe);
2212 /* Parser default initialization */
2213 static int mvpp2_prs_default_init(struct udevice *dev,
2218 /* Enable tcam table */
2219 mvpp2_write(priv, MVPP2_PRS_TCAM_CTRL_REG, MVPP2_PRS_TCAM_EN_MASK);
2221 /* Clear all tcam and sram entries */
2222 for (index = 0; index < MVPP2_PRS_TCAM_SRAM_SIZE; index++) {
2223 mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, index);
2224 for (i = 0; i < MVPP2_PRS_TCAM_WORDS; i++)
2225 mvpp2_write(priv, MVPP2_PRS_TCAM_DATA_REG(i), 0);
2227 mvpp2_write(priv, MVPP2_PRS_SRAM_IDX_REG, index);
2228 for (i = 0; i < MVPP2_PRS_SRAM_WORDS; i++)
2229 mvpp2_write(priv, MVPP2_PRS_SRAM_DATA_REG(i), 0);
2232 /* Invalidate all tcam entries */
2233 for (index = 0; index < MVPP2_PRS_TCAM_SRAM_SIZE; index++)
2234 mvpp2_prs_hw_inv(priv, index);
2236 priv->prs_shadow = devm_kcalloc(dev, MVPP2_PRS_TCAM_SRAM_SIZE,
2237 sizeof(struct mvpp2_prs_shadow),
2239 if (!priv->prs_shadow)
2242 /* Always start from lookup = 0 */
2243 for (index = 0; index < MVPP2_MAX_PORTS; index++)
2244 mvpp2_prs_hw_port_init(priv, index, MVPP2_PRS_LU_MH,
2245 MVPP2_PRS_PORT_LU_MAX, 0);
2247 mvpp2_prs_def_flow_init(priv);
2249 mvpp2_prs_mh_init(priv);
2251 mvpp2_prs_mac_init(priv);
2253 err = mvpp2_prs_etype_init(priv);
2260 /* Compare MAC DA with tcam entry data */
2261 static bool mvpp2_prs_mac_range_equals(struct mvpp2_prs_entry *pe,
2262 const u8 *da, unsigned char *mask)
2264 unsigned char tcam_byte, tcam_mask;
2267 for (index = 0; index < ETH_ALEN; index++) {
2268 mvpp2_prs_tcam_data_byte_get(pe, index, &tcam_byte, &tcam_mask);
2269 if (tcam_mask != mask[index])
2272 if ((tcam_mask & tcam_byte) != (da[index] & mask[index]))
2279 /* Find tcam entry with matched pair <MAC DA, port> */
2280 static struct mvpp2_prs_entry *
2281 mvpp2_prs_mac_da_range_find(struct mvpp2 *priv, int pmap, const u8 *da,
2282 unsigned char *mask, int udf_type)
2284 struct mvpp2_prs_entry *pe;
2287 pe = kzalloc(sizeof(*pe), GFP_KERNEL);
2290 mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_MAC);
2292 /* Go through the all entires with MVPP2_PRS_LU_MAC */
2293 for (tid = MVPP2_PE_FIRST_FREE_TID;
2294 tid <= MVPP2_PE_LAST_FREE_TID; tid++) {
2295 unsigned int entry_pmap;
2297 if (!priv->prs_shadow[tid].valid ||
2298 (priv->prs_shadow[tid].lu != MVPP2_PRS_LU_MAC) ||
2299 (priv->prs_shadow[tid].udf != udf_type))
2303 mvpp2_prs_hw_read(priv, pe);
2304 entry_pmap = mvpp2_prs_tcam_port_map_get(pe);
2306 if (mvpp2_prs_mac_range_equals(pe, da, mask) &&
2315 /* Update parser's mac da entry */
2316 static int mvpp2_prs_mac_da_accept(struct mvpp2 *priv, int port,
2317 const u8 *da, bool add)
2319 struct mvpp2_prs_entry *pe;
2320 unsigned int pmap, len, ri;
2321 unsigned char mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
2324 /* Scan TCAM and see if entry with this <MAC DA, port> already exist */
2325 pe = mvpp2_prs_mac_da_range_find(priv, (1 << port), da, mask,
2326 MVPP2_PRS_UDF_MAC_DEF);
2333 /* Create new TCAM entry */
2334 /* Find first range mac entry*/
2335 for (tid = MVPP2_PE_FIRST_FREE_TID;
2336 tid <= MVPP2_PE_LAST_FREE_TID; tid++)
2337 if (priv->prs_shadow[tid].valid &&
2338 (priv->prs_shadow[tid].lu == MVPP2_PRS_LU_MAC) &&
2339 (priv->prs_shadow[tid].udf ==
2340 MVPP2_PRS_UDF_MAC_RANGE))
2343 /* Go through the all entries from first to last */
2344 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
2349 pe = kzalloc(sizeof(*pe), GFP_KERNEL);
2352 mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_MAC);
2355 /* Mask all ports */
2356 mvpp2_prs_tcam_port_map_set(pe, 0);
2359 /* Update port mask */
2360 mvpp2_prs_tcam_port_set(pe, port, add);
2362 /* Invalidate the entry if no ports are left enabled */
2363 pmap = mvpp2_prs_tcam_port_map_get(pe);
2369 mvpp2_prs_hw_inv(priv, pe->index);
2370 priv->prs_shadow[pe->index].valid = false;
2375 /* Continue - set next lookup */
2376 mvpp2_prs_sram_next_lu_set(pe, MVPP2_PRS_LU_DSA);
2378 /* Set match on DA */
2381 mvpp2_prs_tcam_data_byte_set(pe, len, da[len], 0xff);
2383 /* Set result info bits */
2384 ri = MVPP2_PRS_RI_L2_UCAST | MVPP2_PRS_RI_MAC_ME_MASK;
2386 mvpp2_prs_sram_ri_update(pe, ri, MVPP2_PRS_RI_L2_CAST_MASK |
2387 MVPP2_PRS_RI_MAC_ME_MASK);
2388 mvpp2_prs_shadow_ri_set(priv, pe->index, ri, MVPP2_PRS_RI_L2_CAST_MASK |
2389 MVPP2_PRS_RI_MAC_ME_MASK);
2391 /* Shift to ethertype */
2392 mvpp2_prs_sram_shift_set(pe, 2 * ETH_ALEN,
2393 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
2395 /* Update shadow table and hw entry */
2396 priv->prs_shadow[pe->index].udf = MVPP2_PRS_UDF_MAC_DEF;
2397 mvpp2_prs_shadow_set(priv, pe->index, MVPP2_PRS_LU_MAC);
2398 mvpp2_prs_hw_write(priv, pe);
2405 static int mvpp2_prs_update_mac_da(struct mvpp2_port *port, const u8 *da)
2409 /* Remove old parser entry */
2410 err = mvpp2_prs_mac_da_accept(port->priv, port->id, port->dev_addr,
2415 /* Add new parser entry */
2416 err = mvpp2_prs_mac_da_accept(port->priv, port->id, da, true);
2420 /* Set addr in the device */
2421 memcpy(port->dev_addr, da, ETH_ALEN);
2426 /* Set prs flow for the port */
2427 static int mvpp2_prs_def_flow(struct mvpp2_port *port)
2429 struct mvpp2_prs_entry *pe;
2432 pe = mvpp2_prs_flow_find(port->priv, port->id);
2434 /* Such entry not exist */
2436 /* Go through the all entires from last to first */
2437 tid = mvpp2_prs_tcam_first_free(port->priv,
2438 MVPP2_PE_LAST_FREE_TID,
2439 MVPP2_PE_FIRST_FREE_TID);
2443 pe = kzalloc(sizeof(*pe), GFP_KERNEL);
2447 mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_FLOWS);
2451 mvpp2_prs_sram_ai_update(pe, port->id, MVPP2_PRS_FLOW_ID_MASK);
2452 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_LU_DONE_BIT, 1);
2454 /* Update shadow table */
2455 mvpp2_prs_shadow_set(port->priv, pe->index, MVPP2_PRS_LU_FLOWS);
2458 mvpp2_prs_tcam_port_map_set(pe, (1 << port->id));
2459 mvpp2_prs_hw_write(port->priv, pe);
2465 /* Classifier configuration routines */
2467 /* Update classification flow table registers */
2468 static void mvpp2_cls_flow_write(struct mvpp2 *priv,
2469 struct mvpp2_cls_flow_entry *fe)
2471 mvpp2_write(priv, MVPP2_CLS_FLOW_INDEX_REG, fe->index);
2472 mvpp2_write(priv, MVPP2_CLS_FLOW_TBL0_REG, fe->data[0]);
2473 mvpp2_write(priv, MVPP2_CLS_FLOW_TBL1_REG, fe->data[1]);
2474 mvpp2_write(priv, MVPP2_CLS_FLOW_TBL2_REG, fe->data[2]);
2477 /* Update classification lookup table register */
2478 static void mvpp2_cls_lookup_write(struct mvpp2 *priv,
2479 struct mvpp2_cls_lookup_entry *le)
2483 val = (le->way << MVPP2_CLS_LKP_INDEX_WAY_OFFS) | le->lkpid;
2484 mvpp2_write(priv, MVPP2_CLS_LKP_INDEX_REG, val);
2485 mvpp2_write(priv, MVPP2_CLS_LKP_TBL_REG, le->data);
2488 /* Classifier default initialization */
2489 static void mvpp2_cls_init(struct mvpp2 *priv)
2491 struct mvpp2_cls_lookup_entry le;
2492 struct mvpp2_cls_flow_entry fe;
2495 /* Enable classifier */
2496 mvpp2_write(priv, MVPP2_CLS_MODE_REG, MVPP2_CLS_MODE_ACTIVE_MASK);
2498 /* Clear classifier flow table */
2499 memset(&fe.data, 0, MVPP2_CLS_FLOWS_TBL_DATA_WORDS);
2500 for (index = 0; index < MVPP2_CLS_FLOWS_TBL_SIZE; index++) {
2502 mvpp2_cls_flow_write(priv, &fe);
2505 /* Clear classifier lookup table */
2507 for (index = 0; index < MVPP2_CLS_LKP_TBL_SIZE; index++) {
2510 mvpp2_cls_lookup_write(priv, &le);
2513 mvpp2_cls_lookup_write(priv, &le);
2517 static void mvpp2_cls_port_config(struct mvpp2_port *port)
2519 struct mvpp2_cls_lookup_entry le;
2522 /* Set way for the port */
2523 val = mvpp2_read(port->priv, MVPP2_CLS_PORT_WAY_REG);
2524 val &= ~MVPP2_CLS_PORT_WAY_MASK(port->id);
2525 mvpp2_write(port->priv, MVPP2_CLS_PORT_WAY_REG, val);
2527 /* Pick the entry to be accessed in lookup ID decoding table
2528 * according to the way and lkpid.
2530 le.lkpid = port->id;
2534 /* Set initial CPU queue for receiving packets */
2535 le.data &= ~MVPP2_CLS_LKP_TBL_RXQ_MASK;
2536 le.data |= port->first_rxq;
2538 /* Disable classification engines */
2539 le.data &= ~MVPP2_CLS_LKP_TBL_LOOKUP_EN_MASK;
2541 /* Update lookup ID table entry */
2542 mvpp2_cls_lookup_write(port->priv, &le);
2545 /* Set CPU queue number for oversize packets */
2546 static void mvpp2_cls_oversize_rxq_set(struct mvpp2_port *port)
2550 mvpp2_write(port->priv, MVPP2_CLS_OVERSIZE_RXQ_LOW_REG(port->id),
2551 port->first_rxq & MVPP2_CLS_OVERSIZE_RXQ_LOW_MASK);
2553 mvpp2_write(port->priv, MVPP2_CLS_SWFWD_P2HQ_REG(port->id),
2554 (port->first_rxq >> MVPP2_CLS_OVERSIZE_RXQ_LOW_BITS));
2556 val = mvpp2_read(port->priv, MVPP2_CLS_SWFWD_PCTRL_REG);
2557 val |= MVPP2_CLS_SWFWD_PCTRL_MASK(port->id);
2558 mvpp2_write(port->priv, MVPP2_CLS_SWFWD_PCTRL_REG, val);
2561 /* Buffer Manager configuration routines */
2564 static int mvpp2_bm_pool_create(struct udevice *dev,
2566 struct mvpp2_bm_pool *bm_pool, int size)
2570 /* Number of buffer pointers must be a multiple of 16, as per
2571 * hardware constraints
2573 if (!IS_ALIGNED(size, 16))
2576 bm_pool->virt_addr = buffer_loc.bm_pool[bm_pool->id];
2577 bm_pool->dma_addr = (dma_addr_t)buffer_loc.bm_pool[bm_pool->id];
2578 if (!bm_pool->virt_addr)
2581 if (!IS_ALIGNED((unsigned long)bm_pool->virt_addr,
2582 MVPP2_BM_POOL_PTR_ALIGN)) {
2583 dev_err(&pdev->dev, "BM pool %d is not %d bytes aligned\n",
2584 bm_pool->id, MVPP2_BM_POOL_PTR_ALIGN);
2588 mvpp2_write(priv, MVPP2_BM_POOL_BASE_REG(bm_pool->id),
2589 lower_32_bits(bm_pool->dma_addr));
2590 mvpp2_write(priv, MVPP2_BM_POOL_SIZE_REG(bm_pool->id), size);
2592 val = mvpp2_read(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id));
2593 val |= MVPP2_BM_START_MASK;
2594 mvpp2_write(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id), val);
2596 bm_pool->type = MVPP2_BM_FREE;
2597 bm_pool->size = size;
2598 bm_pool->pkt_size = 0;
2599 bm_pool->buf_num = 0;
2604 /* Set pool buffer size */
2605 static void mvpp2_bm_pool_bufsize_set(struct mvpp2 *priv,
2606 struct mvpp2_bm_pool *bm_pool,
2611 bm_pool->buf_size = buf_size;
2613 val = ALIGN(buf_size, 1 << MVPP2_POOL_BUF_SIZE_OFFSET);
2614 mvpp2_write(priv, MVPP2_POOL_BUF_SIZE_REG(bm_pool->id), val);
2617 /* Free all buffers from the pool */
2618 static void mvpp2_bm_bufs_free(struct udevice *dev, struct mvpp2 *priv,
2619 struct mvpp2_bm_pool *bm_pool)
2623 for (i = 0; i < bm_pool->buf_num; i++) {
2624 /* Allocate buffer back from the buffer manager */
2625 mvpp2_read(priv, MVPP2_BM_PHY_ALLOC_REG(bm_pool->id));
2628 bm_pool->buf_num = 0;
2632 static int mvpp2_bm_pool_destroy(struct udevice *dev,
2634 struct mvpp2_bm_pool *bm_pool)
2638 mvpp2_bm_bufs_free(dev, priv, bm_pool);
2639 if (bm_pool->buf_num) {
2640 dev_err(dev, "cannot free all buffers in pool %d\n", bm_pool->id);
2644 val = mvpp2_read(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id));
2645 val |= MVPP2_BM_STOP_MASK;
2646 mvpp2_write(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id), val);
2651 static int mvpp2_bm_pools_init(struct udevice *dev,
2655 struct mvpp2_bm_pool *bm_pool;
2657 /* Create all pools with maximum size */
2658 size = MVPP2_BM_POOL_SIZE_MAX;
2659 for (i = 0; i < MVPP2_BM_POOLS_NUM; i++) {
2660 bm_pool = &priv->bm_pools[i];
2662 err = mvpp2_bm_pool_create(dev, priv, bm_pool, size);
2664 goto err_unroll_pools;
2665 mvpp2_bm_pool_bufsize_set(priv, bm_pool, 0);
2670 dev_err(&pdev->dev, "failed to create BM pool %d, size %d\n", i, size);
2671 for (i = i - 1; i >= 0; i--)
2672 mvpp2_bm_pool_destroy(dev, priv, &priv->bm_pools[i]);
2676 static int mvpp2_bm_init(struct udevice *dev, struct mvpp2 *priv)
2680 for (i = 0; i < MVPP2_BM_POOLS_NUM; i++) {
2681 /* Mask BM all interrupts */
2682 mvpp2_write(priv, MVPP2_BM_INTR_MASK_REG(i), 0);
2683 /* Clear BM cause register */
2684 mvpp2_write(priv, MVPP2_BM_INTR_CAUSE_REG(i), 0);
2687 /* Allocate and initialize BM pools */
2688 priv->bm_pools = devm_kcalloc(dev, MVPP2_BM_POOLS_NUM,
2689 sizeof(struct mvpp2_bm_pool), GFP_KERNEL);
2690 if (!priv->bm_pools)
2693 err = mvpp2_bm_pools_init(dev, priv);
2699 /* Attach long pool to rxq */
2700 static void mvpp2_rxq_long_pool_set(struct mvpp2_port *port,
2701 int lrxq, int long_pool)
2706 /* Get queue physical ID */
2707 prxq = port->rxqs[lrxq]->id;
2709 if (port->priv->hw_version == MVPP21)
2710 mask = MVPP21_RXQ_POOL_LONG_MASK;
2712 mask = MVPP22_RXQ_POOL_LONG_MASK;
2714 val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(prxq));
2716 val |= (long_pool << MVPP2_RXQ_POOL_LONG_OFFS) & mask;
2717 mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(prxq), val);
2720 /* Set pool number in a BM cookie */
2721 static inline u32 mvpp2_bm_cookie_pool_set(u32 cookie, int pool)
2725 bm = cookie & ~(0xFF << MVPP2_BM_COOKIE_POOL_OFFS);
2726 bm |= ((pool & 0xFF) << MVPP2_BM_COOKIE_POOL_OFFS);
2731 /* Get pool number from a BM cookie */
2732 static inline int mvpp2_bm_cookie_pool_get(unsigned long cookie)
2734 return (cookie >> MVPP2_BM_COOKIE_POOL_OFFS) & 0xFF;
2737 /* Release buffer to BM */
2738 static inline void mvpp2_bm_pool_put(struct mvpp2_port *port, int pool,
2739 dma_addr_t buf_dma_addr,
2740 unsigned long buf_phys_addr)
2742 if (port->priv->hw_version == MVPP22) {
2745 if (sizeof(dma_addr_t) == 8)
2746 val |= upper_32_bits(buf_dma_addr) &
2747 MVPP22_BM_ADDR_HIGH_PHYS_RLS_MASK;
2749 if (sizeof(phys_addr_t) == 8)
2750 val |= (upper_32_bits(buf_phys_addr)
2751 << MVPP22_BM_ADDR_HIGH_VIRT_RLS_SHIFT) &
2752 MVPP22_BM_ADDR_HIGH_VIRT_RLS_MASK;
2754 mvpp2_write(port->priv, MVPP22_BM_ADDR_HIGH_RLS_REG, val);
2757 /* MVPP2_BM_VIRT_RLS_REG is not interpreted by HW, and simply
2758 * returned in the "cookie" field of the RX
2759 * descriptor. Instead of storing the virtual address, we
2760 * store the physical address
2762 mvpp2_write(port->priv, MVPP2_BM_VIRT_RLS_REG, buf_phys_addr);
2763 mvpp2_write(port->priv, MVPP2_BM_PHY_RLS_REG(pool), buf_dma_addr);
2766 /* Refill BM pool */
2767 static void mvpp2_pool_refill(struct mvpp2_port *port, u32 bm,
2768 dma_addr_t dma_addr,
2769 phys_addr_t phys_addr)
2771 int pool = mvpp2_bm_cookie_pool_get(bm);
2773 mvpp2_bm_pool_put(port, pool, dma_addr, phys_addr);
2776 /* Allocate buffers for the pool */
2777 static int mvpp2_bm_bufs_add(struct mvpp2_port *port,
2778 struct mvpp2_bm_pool *bm_pool, int buf_num)
2783 (buf_num + bm_pool->buf_num > bm_pool->size)) {
2784 netdev_err(port->dev,
2785 "cannot allocate %d buffers for pool %d\n",
2786 buf_num, bm_pool->id);
2790 for (i = 0; i < buf_num; i++) {
2791 mvpp2_bm_pool_put(port, bm_pool->id,
2792 (dma_addr_t)buffer_loc.rx_buffer[i],
2793 (unsigned long)buffer_loc.rx_buffer[i]);
2797 /* Update BM driver with number of buffers added to pool */
2798 bm_pool->buf_num += i;
2803 /* Notify the driver that BM pool is being used as specific type and return the
2804 * pool pointer on success
2806 static struct mvpp2_bm_pool *
2807 mvpp2_bm_pool_use(struct mvpp2_port *port, int pool, enum mvpp2_bm_type type,
2810 struct mvpp2_bm_pool *new_pool = &port->priv->bm_pools[pool];
2813 if (new_pool->type != MVPP2_BM_FREE && new_pool->type != type) {
2814 netdev_err(port->dev, "mixing pool types is forbidden\n");
2818 if (new_pool->type == MVPP2_BM_FREE)
2819 new_pool->type = type;
2821 /* Allocate buffers in case BM pool is used as long pool, but packet
2822 * size doesn't match MTU or BM pool hasn't being used yet
2824 if (((type == MVPP2_BM_SWF_LONG) && (pkt_size > new_pool->pkt_size)) ||
2825 (new_pool->pkt_size == 0)) {
2828 /* Set default buffer number or free all the buffers in case
2829 * the pool is not empty
2831 pkts_num = new_pool->buf_num;
2833 pkts_num = type == MVPP2_BM_SWF_LONG ?
2834 MVPP2_BM_LONG_BUF_NUM :
2835 MVPP2_BM_SHORT_BUF_NUM;
2837 mvpp2_bm_bufs_free(NULL,
2838 port->priv, new_pool);
2840 new_pool->pkt_size = pkt_size;
2842 /* Allocate buffers for this pool */
2843 num = mvpp2_bm_bufs_add(port, new_pool, pkts_num);
2844 if (num != pkts_num) {
2845 dev_err(dev, "pool %d: %d of %d allocated\n",
2846 new_pool->id, num, pkts_num);
2851 mvpp2_bm_pool_bufsize_set(port->priv, new_pool,
2852 MVPP2_RX_BUF_SIZE(new_pool->pkt_size));
2857 /* Initialize pools for swf */
2858 static int mvpp2_swf_bm_pool_init(struct mvpp2_port *port)
2862 if (!port->pool_long) {
2864 mvpp2_bm_pool_use(port, MVPP2_BM_SWF_LONG_POOL(port->id),
2867 if (!port->pool_long)
2870 port->pool_long->port_map |= (1 << port->id);
2872 for (rxq = 0; rxq < rxq_number; rxq++)
2873 mvpp2_rxq_long_pool_set(port, rxq, port->pool_long->id);
2879 /* Port configuration routines */
2881 static void mvpp2_port_mii_set(struct mvpp2_port *port)
2885 val = readl(port->base + MVPP2_GMAC_CTRL_2_REG);
2887 switch (port->phy_interface) {
2888 case PHY_INTERFACE_MODE_SGMII:
2889 val |= MVPP2_GMAC_INBAND_AN_MASK;
2891 case PHY_INTERFACE_MODE_RGMII:
2892 case PHY_INTERFACE_MODE_RGMII_ID:
2893 val |= MVPP2_GMAC_PORT_RGMII_MASK;
2895 val &= ~MVPP2_GMAC_PCS_ENABLE_MASK;
2898 writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
2901 static void mvpp2_port_fc_adv_enable(struct mvpp2_port *port)
2905 val = readl(port->base + MVPP2_GMAC_AUTONEG_CONFIG);
2906 val |= MVPP2_GMAC_FC_ADV_EN;
2907 writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG);
2910 static void mvpp2_port_enable(struct mvpp2_port *port)
2914 val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
2915 val |= MVPP2_GMAC_PORT_EN_MASK;
2916 val |= MVPP2_GMAC_MIB_CNTR_EN_MASK;
2917 writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
2920 static void mvpp2_port_disable(struct mvpp2_port *port)
2924 val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
2925 val &= ~(MVPP2_GMAC_PORT_EN_MASK);
2926 writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
2929 /* Set IEEE 802.3x Flow Control Xon Packet Transmission Mode */
2930 static void mvpp2_port_periodic_xon_disable(struct mvpp2_port *port)
2934 val = readl(port->base + MVPP2_GMAC_CTRL_1_REG) &
2935 ~MVPP2_GMAC_PERIODIC_XON_EN_MASK;
2936 writel(val, port->base + MVPP2_GMAC_CTRL_1_REG);
2939 /* Configure loopback port */
2940 static void mvpp2_port_loopback_set(struct mvpp2_port *port)
2944 val = readl(port->base + MVPP2_GMAC_CTRL_1_REG);
2946 if (port->speed == 1000)
2947 val |= MVPP2_GMAC_GMII_LB_EN_MASK;
2949 val &= ~MVPP2_GMAC_GMII_LB_EN_MASK;
2951 if (port->phy_interface == PHY_INTERFACE_MODE_SGMII)
2952 val |= MVPP2_GMAC_PCS_LB_EN_MASK;
2954 val &= ~MVPP2_GMAC_PCS_LB_EN_MASK;
2956 writel(val, port->base + MVPP2_GMAC_CTRL_1_REG);
2959 static void mvpp2_port_reset(struct mvpp2_port *port)
2963 val = readl(port->base + MVPP2_GMAC_CTRL_2_REG) &
2964 ~MVPP2_GMAC_PORT_RESET_MASK;
2965 writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
2967 while (readl(port->base + MVPP2_GMAC_CTRL_2_REG) &
2968 MVPP2_GMAC_PORT_RESET_MASK)
2972 /* Change maximum receive size of the port */
2973 static inline void mvpp2_gmac_max_rx_size_set(struct mvpp2_port *port)
2977 val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
2978 val &= ~MVPP2_GMAC_MAX_RX_SIZE_MASK;
2979 val |= (((port->pkt_size - MVPP2_MH_SIZE) / 2) <<
2980 MVPP2_GMAC_MAX_RX_SIZE_OFFS);
2981 writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
2984 /* PPv2.2 GoP/GMAC config */
2986 /* Set the MAC to reset or exit from reset */
2987 static int gop_gmac_reset(struct mvpp2_port *port, int reset)
2991 /* read - modify - write */
2992 val = readl(port->base + MVPP2_GMAC_CTRL_2_REG);
2994 val |= MVPP2_GMAC_PORT_RESET_MASK;
2996 val &= ~MVPP2_GMAC_PORT_RESET_MASK;
2997 writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
3005 * Configure port to working with Gig PCS or don't.
3007 static int gop_gpcs_mode_cfg(struct mvpp2_port *port, int en)
3011 val = readl(port->base + MVPP2_GMAC_CTRL_2_REG);
3013 val |= MVPP2_GMAC_PCS_ENABLE_MASK;
3015 val &= ~MVPP2_GMAC_PCS_ENABLE_MASK;
3016 /* enable / disable PCS on this port */
3017 writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
3022 static int gop_bypass_clk_cfg(struct mvpp2_port *port, int en)
3026 val = readl(port->base + MVPP2_GMAC_CTRL_2_REG);
3028 val |= MVPP2_GMAC_CLK_125_BYPS_EN_MASK;
3030 val &= ~MVPP2_GMAC_CLK_125_BYPS_EN_MASK;
3031 /* enable / disable PCS on this port */
3032 writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
3037 static void gop_gmac_sgmii2_5_cfg(struct mvpp2_port *port)
3042 * Configure minimal level of the Tx FIFO before the lower part
3043 * starts to read a packet
3045 thresh = MVPP2_SGMII2_5_TX_FIFO_MIN_TH;
3046 val = readl(port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
3047 val &= ~MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK;
3048 val |= MVPP2_GMAC_TX_FIFO_MIN_TH_MASK(thresh);
3049 writel(val, port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
3051 /* Disable bypass of sync module */
3052 val = readl(port->base + MVPP2_GMAC_CTRL_4_REG);
3053 val |= MVPP2_GMAC_CTRL4_SYNC_BYPASS_MASK;
3054 /* configure DP clock select according to mode */
3055 val |= MVPP2_GMAC_CTRL4_DP_CLK_SEL_MASK;
3056 /* configure QSGMII bypass according to mode */
3057 val |= MVPP2_GMAC_CTRL4_QSGMII_BYPASS_ACTIVE_MASK;
3058 writel(val, port->base + MVPP2_GMAC_CTRL_4_REG);
3060 val = readl(port->base + MVPP2_GMAC_CTRL_2_REG);
3061 val |= MVPP2_GMAC_PORT_DIS_PADING_MASK;
3062 writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
3064 val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
3066 * Configure GIG MAC to 1000Base-X mode connected to a fiber
3069 val |= MVPP2_GMAC_PORT_TYPE_MASK;
3070 writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
3072 /* configure AN 0x9268 */
3073 val = MVPP2_GMAC_EN_PCS_AN |
3074 MVPP2_GMAC_AN_BYPASS_EN |
3075 MVPP2_GMAC_CONFIG_MII_SPEED |
3076 MVPP2_GMAC_CONFIG_GMII_SPEED |
3077 MVPP2_GMAC_FC_ADV_EN |
3078 MVPP2_GMAC_CONFIG_FULL_DUPLEX |
3079 MVPP2_GMAC_CHOOSE_SAMPLE_TX_CONFIG;
3080 writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG);
3083 static void gop_gmac_sgmii_cfg(struct mvpp2_port *port)
3088 * Configure minimal level of the Tx FIFO before the lower part
3089 * starts to read a packet
3091 thresh = MVPP2_SGMII_TX_FIFO_MIN_TH;
3092 val = readl(port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
3093 val &= ~MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK;
3094 val |= MVPP2_GMAC_TX_FIFO_MIN_TH_MASK(thresh);
3095 writel(val, port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
3097 /* Disable bypass of sync module */
3098 val = readl(port->base + MVPP2_GMAC_CTRL_4_REG);
3099 val |= MVPP2_GMAC_CTRL4_SYNC_BYPASS_MASK;
3100 /* configure DP clock select according to mode */
3101 val &= ~MVPP2_GMAC_CTRL4_DP_CLK_SEL_MASK;
3102 /* configure QSGMII bypass according to mode */
3103 val |= MVPP2_GMAC_CTRL4_QSGMII_BYPASS_ACTIVE_MASK;
3104 writel(val, port->base + MVPP2_GMAC_CTRL_4_REG);
3106 val = readl(port->base + MVPP2_GMAC_CTRL_2_REG);
3107 val |= MVPP2_GMAC_PORT_DIS_PADING_MASK;
3108 writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
3110 val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
3111 /* configure GIG MAC to SGMII mode */
3112 val &= ~MVPP2_GMAC_PORT_TYPE_MASK;
3113 writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
3116 val = MVPP2_GMAC_EN_PCS_AN |
3117 MVPP2_GMAC_AN_BYPASS_EN |
3118 MVPP2_GMAC_AN_SPEED_EN |
3119 MVPP2_GMAC_EN_FC_AN |
3120 MVPP2_GMAC_AN_DUPLEX_EN |
3121 MVPP2_GMAC_CHOOSE_SAMPLE_TX_CONFIG;
3122 writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG);
3125 static void gop_gmac_rgmii_cfg(struct mvpp2_port *port)
3130 * Configure minimal level of the Tx FIFO before the lower part
3131 * starts to read a packet
3133 thresh = MVPP2_RGMII_TX_FIFO_MIN_TH;
3134 val = readl(port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
3135 val &= ~MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK;
3136 val |= MVPP2_GMAC_TX_FIFO_MIN_TH_MASK(thresh);
3137 writel(val, port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
3139 /* Disable bypass of sync module */
3140 val = readl(port->base + MVPP2_GMAC_CTRL_4_REG);
3141 val |= MVPP2_GMAC_CTRL4_SYNC_BYPASS_MASK;
3142 /* configure DP clock select according to mode */
3143 val &= ~MVPP2_GMAC_CTRL4_DP_CLK_SEL_MASK;
3144 val |= MVPP2_GMAC_CTRL4_QSGMII_BYPASS_ACTIVE_MASK;
3145 val |= MVPP2_GMAC_CTRL4_EXT_PIN_GMII_SEL_MASK;
3146 writel(val, port->base + MVPP2_GMAC_CTRL_4_REG);
3148 val = readl(port->base + MVPP2_GMAC_CTRL_2_REG);
3149 val &= ~MVPP2_GMAC_PORT_DIS_PADING_MASK;
3150 writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
3152 val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
3153 /* configure GIG MAC to SGMII mode */
3154 val &= ~MVPP2_GMAC_PORT_TYPE_MASK;
3155 writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
3157 /* configure AN 0xb8e8 */
3158 val = MVPP2_GMAC_AN_BYPASS_EN |
3159 MVPP2_GMAC_AN_SPEED_EN |
3160 MVPP2_GMAC_EN_FC_AN |
3161 MVPP2_GMAC_AN_DUPLEX_EN |
3162 MVPP2_GMAC_CHOOSE_SAMPLE_TX_CONFIG;
3163 writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG);
3166 /* Set the internal mux's to the required MAC in the GOP */
3167 static int gop_gmac_mode_cfg(struct mvpp2_port *port)
3171 /* Set TX FIFO thresholds */
3172 switch (port->phy_interface) {
3173 case PHY_INTERFACE_MODE_SGMII:
3174 if (port->phy_speed == 2500)
3175 gop_gmac_sgmii2_5_cfg(port);
3177 gop_gmac_sgmii_cfg(port);
3180 case PHY_INTERFACE_MODE_RGMII:
3181 case PHY_INTERFACE_MODE_RGMII_ID:
3182 gop_gmac_rgmii_cfg(port);
3189 /* Jumbo frame support - 0x1400*2= 0x2800 bytes */
3190 val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
3191 val &= ~MVPP2_GMAC_MAX_RX_SIZE_MASK;
3192 val |= 0x1400 << MVPP2_GMAC_MAX_RX_SIZE_OFFS;
3193 writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
3195 /* PeriodicXonEn disable */
3196 val = readl(port->base + MVPP2_GMAC_CTRL_1_REG);
3197 val &= ~MVPP2_GMAC_PERIODIC_XON_EN_MASK;
3198 writel(val, port->base + MVPP2_GMAC_CTRL_1_REG);
3203 static void gop_xlg_2_gig_mac_cfg(struct mvpp2_port *port)
3207 /* relevant only for MAC0 (XLG0 and GMAC0) */
3208 if (port->gop_id > 0)
3211 /* configure 1Gig MAC mode */
3212 val = readl(port->base + MVPP22_XLG_CTRL3_REG);
3213 val &= ~MVPP22_XLG_CTRL3_MACMODESELECT_MASK;
3214 val |= MVPP22_XLG_CTRL3_MACMODESELECT_GMAC;
3215 writel(val, port->base + MVPP22_XLG_CTRL3_REG);
3218 static int gop_gpcs_reset(struct mvpp2_port *port, int reset)
3222 val = readl(port->base + MVPP2_GMAC_CTRL_2_REG);
3224 val &= ~MVPP2_GMAC_SGMII_MODE_MASK;
3226 val |= MVPP2_GMAC_SGMII_MODE_MASK;
3227 writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
3232 /* Set the internal mux's to the required PCS in the PI */
3233 static int gop_xpcs_mode(struct mvpp2_port *port, int num_of_lanes)
3238 switch (num_of_lanes) {
3252 /* configure XG MAC mode */
3253 val = readl(port->priv->xpcs_base + MVPP22_XPCS_GLOBAL_CFG_0_REG);
3254 val &= ~MVPP22_XPCS_PCSMODE_OFFS;
3255 val &= ~MVPP22_XPCS_LANEACTIVE_MASK;
3256 val |= (2 * lane) << MVPP22_XPCS_LANEACTIVE_OFFS;
3257 writel(val, port->priv->xpcs_base + MVPP22_XPCS_GLOBAL_CFG_0_REG);
3262 static int gop_mpcs_mode(struct mvpp2_port *port)
3266 /* configure PCS40G COMMON CONTROL */
3267 val = readl(port->priv->mpcs_base + PCS40G_COMMON_CONTROL);
3268 val &= ~FORWARD_ERROR_CORRECTION_MASK;
3269 writel(val, port->priv->mpcs_base + PCS40G_COMMON_CONTROL);
3271 /* configure PCS CLOCK RESET */
3272 val = readl(port->priv->mpcs_base + PCS_CLOCK_RESET);
3273 val &= ~CLK_DIVISION_RATIO_MASK;
3274 val |= 1 << CLK_DIVISION_RATIO_OFFS;
3275 writel(val, port->priv->mpcs_base + PCS_CLOCK_RESET);
3277 val &= ~CLK_DIV_PHASE_SET_MASK;
3278 val |= MAC_CLK_RESET_MASK;
3279 val |= RX_SD_CLK_RESET_MASK;
3280 val |= TX_SD_CLK_RESET_MASK;
3281 writel(val, port->priv->mpcs_base + PCS_CLOCK_RESET);
3286 /* Set the internal mux's to the required MAC in the GOP */
3287 static int gop_xlg_mac_mode_cfg(struct mvpp2_port *port, int num_of_act_lanes)
3291 /* configure 10G MAC mode */
3292 val = readl(port->base + MVPP22_XLG_CTRL0_REG);
3293 val |= MVPP22_XLG_RX_FC_EN;
3294 writel(val, port->base + MVPP22_XLG_CTRL0_REG);
3296 val = readl(port->base + MVPP22_XLG_CTRL3_REG);
3297 val &= ~MVPP22_XLG_CTRL3_MACMODESELECT_MASK;
3298 val |= MVPP22_XLG_CTRL3_MACMODESELECT_10GMAC;
3299 writel(val, port->base + MVPP22_XLG_CTRL3_REG);
3301 /* read - modify - write */
3302 val = readl(port->base + MVPP22_XLG_CTRL4_REG);
3303 val &= ~MVPP22_XLG_MODE_DMA_1G;
3304 val |= MVPP22_XLG_FORWARD_PFC_EN;
3305 val |= MVPP22_XLG_FORWARD_802_3X_FC_EN;
3306 val &= ~MVPP22_XLG_EN_IDLE_CHECK_FOR_LINK;
3307 writel(val, port->base + MVPP22_XLG_CTRL4_REG);
3309 /* Jumbo frame support: 0x1400 * 2 = 0x2800 bytes */
3310 val = readl(port->base + MVPP22_XLG_CTRL1_REG);
3311 val &= ~MVPP22_XLG_MAX_RX_SIZE_MASK;
3312 val |= 0x1400 << MVPP22_XLG_MAX_RX_SIZE_OFFS;
3313 writel(val, port->base + MVPP22_XLG_CTRL1_REG);
3315 /* unmask link change interrupt */
3316 val = readl(port->base + MVPP22_XLG_INTERRUPT_MASK_REG);
3317 val |= MVPP22_XLG_INTERRUPT_LINK_CHANGE;
3318 val |= 1; /* unmask summary bit */
3319 writel(val, port->base + MVPP22_XLG_INTERRUPT_MASK_REG);
3324 /* Set PCS to reset or exit from reset */
3325 static int gop_xpcs_reset(struct mvpp2_port *port, int reset)
3329 /* read - modify - write */
3330 val = readl(port->priv->xpcs_base + MVPP22_XPCS_GLOBAL_CFG_0_REG);
3332 val &= ~MVPP22_XPCS_PCSRESET;
3334 val |= MVPP22_XPCS_PCSRESET;
3335 writel(val, port->priv->xpcs_base + MVPP22_XPCS_GLOBAL_CFG_0_REG);
3340 /* Set the MAC to reset or exit from reset */
3341 static int gop_xlg_mac_reset(struct mvpp2_port *port, int reset)
3345 /* read - modify - write */
3346 val = readl(port->base + MVPP22_XLG_CTRL0_REG);
3348 val &= ~MVPP22_XLG_MAC_RESETN;
3350 val |= MVPP22_XLG_MAC_RESETN;
3351 writel(val, port->base + MVPP22_XLG_CTRL0_REG);
3359 * Init physical port. Configures the port mode and all it's elements
3361 * Does not verify that the selected mode/port number is valid at the
3364 static int gop_port_init(struct mvpp2_port *port)
3366 int mac_num = port->gop_id;
3367 int num_of_act_lanes;
3369 if (mac_num >= MVPP22_GOP_MAC_NUM) {
3370 netdev_err(NULL, "%s: illegal port number %d", __func__,
3375 switch (port->phy_interface) {
3376 case PHY_INTERFACE_MODE_RGMII:
3377 case PHY_INTERFACE_MODE_RGMII_ID:
3378 gop_gmac_reset(port, 1);
3381 gop_gpcs_mode_cfg(port, 0);
3382 gop_bypass_clk_cfg(port, 1);
3385 gop_gmac_mode_cfg(port);
3387 gop_gpcs_reset(port, 0);
3390 gop_gmac_reset(port, 0);
3393 case PHY_INTERFACE_MODE_SGMII:
3395 gop_gpcs_mode_cfg(port, 1);
3398 gop_gmac_mode_cfg(port);
3399 /* select proper Mac mode */
3400 gop_xlg_2_gig_mac_cfg(port);
3403 gop_gpcs_reset(port, 0);
3405 gop_gmac_reset(port, 0);
3408 case PHY_INTERFACE_MODE_SFI:
3409 num_of_act_lanes = 2;
3412 gop_xpcs_mode(port, num_of_act_lanes);
3413 gop_mpcs_mode(port);
3415 gop_xlg_mac_mode_cfg(port, num_of_act_lanes);
3418 gop_xpcs_reset(port, 0);
3421 gop_xlg_mac_reset(port, 0);
3425 netdev_err(NULL, "%s: Requested port mode (%d) not supported\n",
3426 __func__, port->phy_interface);
3433 static void gop_xlg_mac_port_enable(struct mvpp2_port *port, int enable)
3437 val = readl(port->base + MVPP22_XLG_CTRL0_REG);
3439 /* Enable port and MIB counters update */
3440 val |= MVPP22_XLG_PORT_EN;
3441 val &= ~MVPP22_XLG_MIBCNT_DIS;
3444 val &= ~MVPP22_XLG_PORT_EN;
3446 writel(val, port->base + MVPP22_XLG_CTRL0_REG);
3449 static void gop_port_enable(struct mvpp2_port *port, int enable)
3451 switch (port->phy_interface) {
3452 case PHY_INTERFACE_MODE_RGMII:
3453 case PHY_INTERFACE_MODE_RGMII_ID:
3454 case PHY_INTERFACE_MODE_SGMII:
3456 mvpp2_port_enable(port);
3458 mvpp2_port_disable(port);
3461 case PHY_INTERFACE_MODE_SFI:
3462 gop_xlg_mac_port_enable(port, enable);
3466 netdev_err(NULL, "%s: Wrong port mode (%d)\n", __func__,
3467 port->phy_interface);
3472 /* RFU1 functions */
3473 static inline u32 gop_rfu1_read(struct mvpp2 *priv, u32 offset)
3475 return readl(priv->rfu1_base + offset);
3478 static inline void gop_rfu1_write(struct mvpp2 *priv, u32 offset, u32 data)
3480 writel(data, priv->rfu1_base + offset);
3483 static u32 mvpp2_netc_cfg_create(int gop_id, phy_interface_t phy_type)
3488 if (phy_type == PHY_INTERFACE_MODE_SGMII)
3489 val |= MV_NETC_GE_MAC2_SGMII;
3493 if (phy_type == PHY_INTERFACE_MODE_SGMII)
3494 val |= MV_NETC_GE_MAC3_SGMII;
3495 else if (phy_type == PHY_INTERFACE_MODE_RGMII ||
3496 phy_type == PHY_INTERFACE_MODE_RGMII_ID)
3497 val |= MV_NETC_GE_MAC3_RGMII;
3503 static void gop_netc_active_port(struct mvpp2 *priv, int gop_id, u32 val)
3507 reg = gop_rfu1_read(priv, NETCOMP_PORTS_CONTROL_1_REG);
3508 reg &= ~(NETC_PORTS_ACTIVE_MASK(gop_id));
3510 val <<= NETC_PORTS_ACTIVE_OFFSET(gop_id);
3511 val &= NETC_PORTS_ACTIVE_MASK(gop_id);
3515 gop_rfu1_write(priv, NETCOMP_PORTS_CONTROL_1_REG, reg);
3518 static void gop_netc_mii_mode(struct mvpp2 *priv, int gop_id, u32 val)
3522 reg = gop_rfu1_read(priv, NETCOMP_CONTROL_0_REG);
3523 reg &= ~NETC_GBE_PORT1_MII_MODE_MASK;
3525 val <<= NETC_GBE_PORT1_MII_MODE_OFFS;
3526 val &= NETC_GBE_PORT1_MII_MODE_MASK;
3530 gop_rfu1_write(priv, NETCOMP_CONTROL_0_REG, reg);
3533 static void gop_netc_gop_reset(struct mvpp2 *priv, u32 val)
3537 reg = gop_rfu1_read(priv, GOP_SOFT_RESET_1_REG);
3538 reg &= ~NETC_GOP_SOFT_RESET_MASK;
3540 val <<= NETC_GOP_SOFT_RESET_OFFS;
3541 val &= NETC_GOP_SOFT_RESET_MASK;
3545 gop_rfu1_write(priv, GOP_SOFT_RESET_1_REG, reg);
3548 static void gop_netc_gop_clock_logic_set(struct mvpp2 *priv, u32 val)
3552 reg = gop_rfu1_read(priv, NETCOMP_PORTS_CONTROL_0_REG);
3553 reg &= ~NETC_CLK_DIV_PHASE_MASK;
3555 val <<= NETC_CLK_DIV_PHASE_OFFS;
3556 val &= NETC_CLK_DIV_PHASE_MASK;
3560 gop_rfu1_write(priv, NETCOMP_PORTS_CONTROL_0_REG, reg);
3563 static void gop_netc_port_rf_reset(struct mvpp2 *priv, int gop_id, u32 val)
3567 reg = gop_rfu1_read(priv, NETCOMP_PORTS_CONTROL_1_REG);
3568 reg &= ~(NETC_PORT_GIG_RF_RESET_MASK(gop_id));
3570 val <<= NETC_PORT_GIG_RF_RESET_OFFS(gop_id);
3571 val &= NETC_PORT_GIG_RF_RESET_MASK(gop_id);
3575 gop_rfu1_write(priv, NETCOMP_PORTS_CONTROL_1_REG, reg);
3578 static void gop_netc_gbe_sgmii_mode_select(struct mvpp2 *priv, int gop_id,
3581 u32 reg, mask, offset;
3584 mask = NETC_GBE_PORT0_SGMII_MODE_MASK;
3585 offset = NETC_GBE_PORT0_SGMII_MODE_OFFS;
3587 mask = NETC_GBE_PORT1_SGMII_MODE_MASK;
3588 offset = NETC_GBE_PORT1_SGMII_MODE_OFFS;
3590 reg = gop_rfu1_read(priv, NETCOMP_CONTROL_0_REG);
3598 gop_rfu1_write(priv, NETCOMP_CONTROL_0_REG, reg);
3601 static void gop_netc_bus_width_select(struct mvpp2 *priv, u32 val)
3605 reg = gop_rfu1_read(priv, NETCOMP_PORTS_CONTROL_0_REG);
3606 reg &= ~NETC_BUS_WIDTH_SELECT_MASK;
3608 val <<= NETC_BUS_WIDTH_SELECT_OFFS;
3609 val &= NETC_BUS_WIDTH_SELECT_MASK;
3613 gop_rfu1_write(priv, NETCOMP_PORTS_CONTROL_0_REG, reg);
3616 static void gop_netc_sample_stages_timing(struct mvpp2 *priv, u32 val)
3620 reg = gop_rfu1_read(priv, NETCOMP_PORTS_CONTROL_0_REG);
3621 reg &= ~NETC_GIG_RX_DATA_SAMPLE_MASK;
3623 val <<= NETC_GIG_RX_DATA_SAMPLE_OFFS;
3624 val &= NETC_GIG_RX_DATA_SAMPLE_MASK;
3628 gop_rfu1_write(priv, NETCOMP_PORTS_CONTROL_0_REG, reg);
3631 static void gop_netc_mac_to_xgmii(struct mvpp2 *priv, int gop_id,
3632 enum mv_netc_phase phase)
3635 case MV_NETC_FIRST_PHASE:
3636 /* Set Bus Width to HB mode = 1 */
3637 gop_netc_bus_width_select(priv, 1);
3638 /* Select RGMII mode */
3639 gop_netc_gbe_sgmii_mode_select(priv, gop_id, MV_NETC_GBE_XMII);
3642 case MV_NETC_SECOND_PHASE:
3643 /* De-assert the relevant port HB reset */
3644 gop_netc_port_rf_reset(priv, gop_id, 1);
3649 static void gop_netc_mac_to_sgmii(struct mvpp2 *priv, int gop_id,
3650 enum mv_netc_phase phase)
3653 case MV_NETC_FIRST_PHASE:
3654 /* Set Bus Width to HB mode = 1 */
3655 gop_netc_bus_width_select(priv, 1);
3656 /* Select SGMII mode */
3658 gop_netc_gbe_sgmii_mode_select(priv, gop_id,
3662 /* Configure the sample stages */
3663 gop_netc_sample_stages_timing(priv, 0);
3664 /* Configure the ComPhy Selector */
3665 /* gop_netc_com_phy_selector_config(netComplex); */
3668 case MV_NETC_SECOND_PHASE:
3669 /* De-assert the relevant port HB reset */
3670 gop_netc_port_rf_reset(priv, gop_id, 1);
3675 static int gop_netc_init(struct mvpp2 *priv, enum mv_netc_phase phase)
3677 u32 c = priv->netc_config;
3679 if (c & MV_NETC_GE_MAC2_SGMII)
3680 gop_netc_mac_to_sgmii(priv, 2, phase);
3682 gop_netc_mac_to_xgmii(priv, 2, phase);
3684 if (c & MV_NETC_GE_MAC3_SGMII) {
3685 gop_netc_mac_to_sgmii(priv, 3, phase);
3687 gop_netc_mac_to_xgmii(priv, 3, phase);
3688 if (c & MV_NETC_GE_MAC3_RGMII)
3689 gop_netc_mii_mode(priv, 3, MV_NETC_GBE_RGMII);
3691 gop_netc_mii_mode(priv, 3, MV_NETC_GBE_MII);
3694 /* Activate gop ports 0, 2, 3 */
3695 gop_netc_active_port(priv, 0, 1);
3696 gop_netc_active_port(priv, 2, 1);
3697 gop_netc_active_port(priv, 3, 1);
3699 if (phase == MV_NETC_SECOND_PHASE) {
3700 /* Enable the GOP internal clock logic */
3701 gop_netc_gop_clock_logic_set(priv, 1);
3702 /* De-assert GOP unit reset */
3703 gop_netc_gop_reset(priv, 1);
3709 /* Set defaults to the MVPP2 port */
3710 static void mvpp2_defaults_set(struct mvpp2_port *port)
3712 int tx_port_num, val, queue, ptxq, lrxq;
3714 if (port->priv->hw_version == MVPP21) {
3715 /* Configure port to loopback if needed */
3716 if (port->flags & MVPP2_F_LOOPBACK)
3717 mvpp2_port_loopback_set(port);
3719 /* Update TX FIFO MIN Threshold */
3720 val = readl(port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
3721 val &= ~MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK;
3722 /* Min. TX threshold must be less than minimal packet length */
3723 val |= MVPP2_GMAC_TX_FIFO_MIN_TH_MASK(64 - 4 - 2);
3724 writel(val, port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
3727 /* Disable Legacy WRR, Disable EJP, Release from reset */
3728 tx_port_num = mvpp2_egress_port(port);
3729 mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG,
3731 mvpp2_write(port->priv, MVPP2_TXP_SCHED_CMD_1_REG, 0);
3733 /* Close bandwidth for all queues */
3734 for (queue = 0; queue < MVPP2_MAX_TXQ; queue++) {
3735 ptxq = mvpp2_txq_phys(port->id, queue);
3736 mvpp2_write(port->priv,
3737 MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(ptxq), 0);
3740 /* Set refill period to 1 usec, refill tokens
3741 * and bucket size to maximum
3743 mvpp2_write(port->priv, MVPP2_TXP_SCHED_PERIOD_REG, 0xc8);
3744 val = mvpp2_read(port->priv, MVPP2_TXP_SCHED_REFILL_REG);
3745 val &= ~MVPP2_TXP_REFILL_PERIOD_ALL_MASK;
3746 val |= MVPP2_TXP_REFILL_PERIOD_MASK(1);
3747 val |= MVPP2_TXP_REFILL_TOKENS_ALL_MASK;
3748 mvpp2_write(port->priv, MVPP2_TXP_SCHED_REFILL_REG, val);
3749 val = MVPP2_TXP_TOKEN_SIZE_MAX;
3750 mvpp2_write(port->priv, MVPP2_TXP_SCHED_TOKEN_SIZE_REG, val);
3752 /* Set MaximumLowLatencyPacketSize value to 256 */
3753 mvpp2_write(port->priv, MVPP2_RX_CTRL_REG(port->id),
3754 MVPP2_RX_USE_PSEUDO_FOR_CSUM_MASK |
3755 MVPP2_RX_LOW_LATENCY_PKT_SIZE(256));
3757 /* Enable Rx cache snoop */
3758 for (lrxq = 0; lrxq < rxq_number; lrxq++) {
3759 queue = port->rxqs[lrxq]->id;
3760 val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(queue));
3761 val |= MVPP2_SNOOP_PKT_SIZE_MASK |
3762 MVPP2_SNOOP_BUF_HDR_MASK;
3763 mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(queue), val);
3767 /* Enable/disable receiving packets */
3768 static void mvpp2_ingress_enable(struct mvpp2_port *port)
3773 for (lrxq = 0; lrxq < rxq_number; lrxq++) {
3774 queue = port->rxqs[lrxq]->id;
3775 val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(queue));
3776 val &= ~MVPP2_RXQ_DISABLE_MASK;
3777 mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(queue), val);
3781 static void mvpp2_ingress_disable(struct mvpp2_port *port)
3786 for (lrxq = 0; lrxq < rxq_number; lrxq++) {
3787 queue = port->rxqs[lrxq]->id;
3788 val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(queue));
3789 val |= MVPP2_RXQ_DISABLE_MASK;
3790 mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(queue), val);
3794 /* Enable transmit via physical egress queue
3795 * - HW starts take descriptors from DRAM
3797 static void mvpp2_egress_enable(struct mvpp2_port *port)
3801 int tx_port_num = mvpp2_egress_port(port);
3803 /* Enable all initialized TXs. */
3805 for (queue = 0; queue < txq_number; queue++) {
3806 struct mvpp2_tx_queue *txq = port->txqs[queue];
3808 if (txq->descs != NULL)
3809 qmap |= (1 << queue);
3812 mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num);
3813 mvpp2_write(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG, qmap);
3816 /* Disable transmit via physical egress queue
3817 * - HW doesn't take descriptors from DRAM
3819 static void mvpp2_egress_disable(struct mvpp2_port *port)
3823 int tx_port_num = mvpp2_egress_port(port);
3825 /* Issue stop command for active channels only */
3826 mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num);
3827 reg_data = (mvpp2_read(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG)) &
3828 MVPP2_TXP_SCHED_ENQ_MASK;
3830 mvpp2_write(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG,
3831 (reg_data << MVPP2_TXP_SCHED_DISQ_OFFSET));
3833 /* Wait for all Tx activity to terminate. */
3836 if (delay >= MVPP2_TX_DISABLE_TIMEOUT_MSEC) {
3837 netdev_warn(port->dev,
3838 "Tx stop timed out, status=0x%08x\n",
3845 /* Check port TX Command register that all
3846 * Tx queues are stopped
3848 reg_data = mvpp2_read(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG);
3849 } while (reg_data & MVPP2_TXP_SCHED_ENQ_MASK);
3852 /* Rx descriptors helper methods */
3854 /* Get number of Rx descriptors occupied by received packets */
3856 mvpp2_rxq_received(struct mvpp2_port *port, int rxq_id)
3858 u32 val = mvpp2_read(port->priv, MVPP2_RXQ_STATUS_REG(rxq_id));
3860 return val & MVPP2_RXQ_OCCUPIED_MASK;
3863 /* Update Rx queue status with the number of occupied and available
3864 * Rx descriptor slots.
3867 mvpp2_rxq_status_update(struct mvpp2_port *port, int rxq_id,
3868 int used_count, int free_count)
3870 /* Decrement the number of used descriptors and increment count
3871 * increment the number of free descriptors.
3873 u32 val = used_count | (free_count << MVPP2_RXQ_NUM_NEW_OFFSET);
3875 mvpp2_write(port->priv, MVPP2_RXQ_STATUS_UPDATE_REG(rxq_id), val);
3878 /* Get pointer to next RX descriptor to be processed by SW */
3879 static inline struct mvpp2_rx_desc *
3880 mvpp2_rxq_next_desc_get(struct mvpp2_rx_queue *rxq)
3882 int rx_desc = rxq->next_desc_to_proc;
3884 rxq->next_desc_to_proc = MVPP2_QUEUE_NEXT_DESC(rxq, rx_desc);
3885 prefetch(rxq->descs + rxq->next_desc_to_proc);
3886 return rxq->descs + rx_desc;
3889 /* Set rx queue offset */
3890 static void mvpp2_rxq_offset_set(struct mvpp2_port *port,
3891 int prxq, int offset)
3895 /* Convert offset from bytes to units of 32 bytes */
3896 offset = offset >> 5;
3898 val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(prxq));
3899 val &= ~MVPP2_RXQ_PACKET_OFFSET_MASK;
3902 val |= ((offset << MVPP2_RXQ_PACKET_OFFSET_OFFS) &
3903 MVPP2_RXQ_PACKET_OFFSET_MASK);
3905 mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(prxq), val);
3908 /* Obtain BM cookie information from descriptor */
3909 static u32 mvpp2_bm_cookie_build(struct mvpp2_port *port,
3910 struct mvpp2_rx_desc *rx_desc)
3912 int cpu = smp_processor_id();
3915 pool = (mvpp2_rxdesc_status_get(port, rx_desc) &
3916 MVPP2_RXD_BM_POOL_ID_MASK) >>
3917 MVPP2_RXD_BM_POOL_ID_OFFS;
3919 return ((pool & 0xFF) << MVPP2_BM_COOKIE_POOL_OFFS) |
3920 ((cpu & 0xFF) << MVPP2_BM_COOKIE_CPU_OFFS);
3923 /* Tx descriptors helper methods */
3925 /* Get number of Tx descriptors waiting to be transmitted by HW */
3926 static int mvpp2_txq_pend_desc_num_get(struct mvpp2_port *port,
3927 struct mvpp2_tx_queue *txq)
3931 mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
3932 val = mvpp2_read(port->priv, MVPP2_TXQ_PENDING_REG);
3934 return val & MVPP2_TXQ_PENDING_MASK;
3937 /* Get pointer to next Tx descriptor to be processed (send) by HW */
3938 static struct mvpp2_tx_desc *
3939 mvpp2_txq_next_desc_get(struct mvpp2_tx_queue *txq)
3941 int tx_desc = txq->next_desc_to_proc;
3943 txq->next_desc_to_proc = MVPP2_QUEUE_NEXT_DESC(txq, tx_desc);
3944 return txq->descs + tx_desc;
3947 /* Update HW with number of aggregated Tx descriptors to be sent */
3948 static void mvpp2_aggr_txq_pend_desc_add(struct mvpp2_port *port, int pending)
3950 /* aggregated access - relevant TXQ number is written in TX desc */
3951 mvpp2_write(port->priv, MVPP2_AGGR_TXQ_UPDATE_REG, pending);
3954 /* Get number of sent descriptors and decrement counter.
3955 * The number of sent descriptors is returned.
3958 static inline int mvpp2_txq_sent_desc_proc(struct mvpp2_port *port,
3959 struct mvpp2_tx_queue *txq)
3963 /* Reading status reg resets transmitted descriptor counter */
3964 val = mvpp2_read(port->priv, MVPP2_TXQ_SENT_REG(txq->id));
3966 return (val & MVPP2_TRANSMITTED_COUNT_MASK) >>
3967 MVPP2_TRANSMITTED_COUNT_OFFSET;
3970 static void mvpp2_txq_sent_counter_clear(void *arg)
3972 struct mvpp2_port *port = arg;
3975 for (queue = 0; queue < txq_number; queue++) {
3976 int id = port->txqs[queue]->id;
3978 mvpp2_read(port->priv, MVPP2_TXQ_SENT_REG(id));
3982 /* Set max sizes for Tx queues */
3983 static void mvpp2_txp_max_tx_size_set(struct mvpp2_port *port)
3986 int txq, tx_port_num;
3988 mtu = port->pkt_size * 8;
3989 if (mtu > MVPP2_TXP_MTU_MAX)
3990 mtu = MVPP2_TXP_MTU_MAX;
3992 /* WA for wrong Token bucket update: Set MTU value = 3*real MTU value */
3995 /* Indirect access to registers */
3996 tx_port_num = mvpp2_egress_port(port);
3997 mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num);
4000 val = mvpp2_read(port->priv, MVPP2_TXP_SCHED_MTU_REG);
4001 val &= ~MVPP2_TXP_MTU_MAX;
4003 mvpp2_write(port->priv, MVPP2_TXP_SCHED_MTU_REG, val);
4005 /* TXP token size and all TXQs token size must be larger that MTU */
4006 val = mvpp2_read(port->priv, MVPP2_TXP_SCHED_TOKEN_SIZE_REG);
4007 size = val & MVPP2_TXP_TOKEN_SIZE_MAX;
4010 val &= ~MVPP2_TXP_TOKEN_SIZE_MAX;
4012 mvpp2_write(port->priv, MVPP2_TXP_SCHED_TOKEN_SIZE_REG, val);
4015 for (txq = 0; txq < txq_number; txq++) {
4016 val = mvpp2_read(port->priv,
4017 MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(txq));
4018 size = val & MVPP2_TXQ_TOKEN_SIZE_MAX;
4022 val &= ~MVPP2_TXQ_TOKEN_SIZE_MAX;
4024 mvpp2_write(port->priv,
4025 MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(txq),
4031 /* Free Tx queue skbuffs */
4032 static void mvpp2_txq_bufs_free(struct mvpp2_port *port,
4033 struct mvpp2_tx_queue *txq,
4034 struct mvpp2_txq_pcpu *txq_pcpu, int num)
4038 for (i = 0; i < num; i++)
4039 mvpp2_txq_inc_get(txq_pcpu);
4042 static inline struct mvpp2_rx_queue *mvpp2_get_rx_queue(struct mvpp2_port *port,
4045 int queue = fls(cause) - 1;
4047 return port->rxqs[queue];
4050 static inline struct mvpp2_tx_queue *mvpp2_get_tx_queue(struct mvpp2_port *port,
4053 int queue = fls(cause) - 1;
4055 return port->txqs[queue];
4058 /* Rx/Tx queue initialization/cleanup methods */
4060 /* Allocate and initialize descriptors for aggr TXQ */
4061 static int mvpp2_aggr_txq_init(struct udevice *dev,
4062 struct mvpp2_tx_queue *aggr_txq,
4063 int desc_num, int cpu,
4068 /* Allocate memory for TX descriptors */
4069 aggr_txq->descs = buffer_loc.aggr_tx_descs;
4070 aggr_txq->descs_dma = (dma_addr_t)buffer_loc.aggr_tx_descs;
4071 if (!aggr_txq->descs)
4074 /* Make sure descriptor address is cache line size aligned */
4075 BUG_ON(aggr_txq->descs !=
4076 PTR_ALIGN(aggr_txq->descs, MVPP2_CPU_D_CACHE_LINE_SIZE));
4078 aggr_txq->last_desc = aggr_txq->size - 1;
4080 /* Aggr TXQ no reset WA */
4081 aggr_txq->next_desc_to_proc = mvpp2_read(priv,
4082 MVPP2_AGGR_TXQ_INDEX_REG(cpu));
4084 /* Set Tx descriptors queue starting address indirect
4087 if (priv->hw_version == MVPP21)
4088 txq_dma = aggr_txq->descs_dma;
4090 txq_dma = aggr_txq->descs_dma >>
4091 MVPP22_AGGR_TXQ_DESC_ADDR_OFFS;
4093 mvpp2_write(priv, MVPP2_AGGR_TXQ_DESC_ADDR_REG(cpu), txq_dma);
4094 mvpp2_write(priv, MVPP2_AGGR_TXQ_DESC_SIZE_REG(cpu), desc_num);
4099 /* Create a specified Rx queue */
4100 static int mvpp2_rxq_init(struct mvpp2_port *port,
4101 struct mvpp2_rx_queue *rxq)
4106 rxq->size = port->rx_ring_size;
4108 /* Allocate memory for RX descriptors */
4109 rxq->descs = buffer_loc.rx_descs;
4110 rxq->descs_dma = (dma_addr_t)buffer_loc.rx_descs;
4114 BUG_ON(rxq->descs !=
4115 PTR_ALIGN(rxq->descs, MVPP2_CPU_D_CACHE_LINE_SIZE));
4117 rxq->last_desc = rxq->size - 1;
4119 /* Zero occupied and non-occupied counters - direct access */
4120 mvpp2_write(port->priv, MVPP2_RXQ_STATUS_REG(rxq->id), 0);
4122 /* Set Rx descriptors queue starting address - indirect access */
4123 mvpp2_write(port->priv, MVPP2_RXQ_NUM_REG, rxq->id);
4124 if (port->priv->hw_version == MVPP21)
4125 rxq_dma = rxq->descs_dma;
4127 rxq_dma = rxq->descs_dma >> MVPP22_DESC_ADDR_OFFS;
4128 mvpp2_write(port->priv, MVPP2_RXQ_DESC_ADDR_REG, rxq_dma);
4129 mvpp2_write(port->priv, MVPP2_RXQ_DESC_SIZE_REG, rxq->size);
4130 mvpp2_write(port->priv, MVPP2_RXQ_INDEX_REG, 0);
4133 mvpp2_rxq_offset_set(port, rxq->id, NET_SKB_PAD);
4135 /* Add number of descriptors ready for receiving packets */
4136 mvpp2_rxq_status_update(port, rxq->id, 0, rxq->size);
4141 /* Push packets received by the RXQ to BM pool */
4142 static void mvpp2_rxq_drop_pkts(struct mvpp2_port *port,
4143 struct mvpp2_rx_queue *rxq)
4147 rx_received = mvpp2_rxq_received(port, rxq->id);
4151 for (i = 0; i < rx_received; i++) {
4152 struct mvpp2_rx_desc *rx_desc = mvpp2_rxq_next_desc_get(rxq);
4153 u32 bm = mvpp2_bm_cookie_build(port, rx_desc);
4155 mvpp2_pool_refill(port, bm,
4156 mvpp2_rxdesc_dma_addr_get(port, rx_desc),
4157 mvpp2_rxdesc_cookie_get(port, rx_desc));
4159 mvpp2_rxq_status_update(port, rxq->id, rx_received, rx_received);
4162 /* Cleanup Rx queue */
4163 static void mvpp2_rxq_deinit(struct mvpp2_port *port,
4164 struct mvpp2_rx_queue *rxq)
4166 mvpp2_rxq_drop_pkts(port, rxq);
4170 rxq->next_desc_to_proc = 0;
4173 /* Clear Rx descriptors queue starting address and size;
4174 * free descriptor number
4176 mvpp2_write(port->priv, MVPP2_RXQ_STATUS_REG(rxq->id), 0);
4177 mvpp2_write(port->priv, MVPP2_RXQ_NUM_REG, rxq->id);
4178 mvpp2_write(port->priv, MVPP2_RXQ_DESC_ADDR_REG, 0);
4179 mvpp2_write(port->priv, MVPP2_RXQ_DESC_SIZE_REG, 0);
4182 /* Create and initialize a Tx queue */
4183 static int mvpp2_txq_init(struct mvpp2_port *port,
4184 struct mvpp2_tx_queue *txq)
4187 int cpu, desc, desc_per_txq, tx_port_num;
4188 struct mvpp2_txq_pcpu *txq_pcpu;
4190 txq->size = port->tx_ring_size;
4192 /* Allocate memory for Tx descriptors */
4193 txq->descs = buffer_loc.tx_descs;
4194 txq->descs_dma = (dma_addr_t)buffer_loc.tx_descs;
4198 /* Make sure descriptor address is cache line size aligned */
4199 BUG_ON(txq->descs !=
4200 PTR_ALIGN(txq->descs, MVPP2_CPU_D_CACHE_LINE_SIZE));
4202 txq->last_desc = txq->size - 1;
4204 /* Set Tx descriptors queue starting address - indirect access */
4205 mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
4206 mvpp2_write(port->priv, MVPP2_TXQ_DESC_ADDR_REG, txq->descs_dma);
4207 mvpp2_write(port->priv, MVPP2_TXQ_DESC_SIZE_REG, txq->size &
4208 MVPP2_TXQ_DESC_SIZE_MASK);
4209 mvpp2_write(port->priv, MVPP2_TXQ_INDEX_REG, 0);
4210 mvpp2_write(port->priv, MVPP2_TXQ_RSVD_CLR_REG,
4211 txq->id << MVPP2_TXQ_RSVD_CLR_OFFSET);
4212 val = mvpp2_read(port->priv, MVPP2_TXQ_PENDING_REG);
4213 val &= ~MVPP2_TXQ_PENDING_MASK;
4214 mvpp2_write(port->priv, MVPP2_TXQ_PENDING_REG, val);
4216 /* Calculate base address in prefetch buffer. We reserve 16 descriptors
4217 * for each existing TXQ.
4218 * TCONTS for PON port must be continuous from 0 to MVPP2_MAX_TCONT
4219 * GBE ports assumed to be continious from 0 to MVPP2_MAX_PORTS
4222 desc = (port->id * MVPP2_MAX_TXQ * desc_per_txq) +
4223 (txq->log_id * desc_per_txq);
4225 mvpp2_write(port->priv, MVPP2_TXQ_PREF_BUF_REG,
4226 MVPP2_PREF_BUF_PTR(desc) | MVPP2_PREF_BUF_SIZE_16 |
4227 MVPP2_PREF_BUF_THRESH(desc_per_txq / 2));
4229 /* WRR / EJP configuration - indirect access */
4230 tx_port_num = mvpp2_egress_port(port);
4231 mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num);
4233 val = mvpp2_read(port->priv, MVPP2_TXQ_SCHED_REFILL_REG(txq->log_id));
4234 val &= ~MVPP2_TXQ_REFILL_PERIOD_ALL_MASK;
4235 val |= MVPP2_TXQ_REFILL_PERIOD_MASK(1);
4236 val |= MVPP2_TXQ_REFILL_TOKENS_ALL_MASK;
4237 mvpp2_write(port->priv, MVPP2_TXQ_SCHED_REFILL_REG(txq->log_id), val);
4239 val = MVPP2_TXQ_TOKEN_SIZE_MAX;
4240 mvpp2_write(port->priv, MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(txq->log_id),
4243 for_each_present_cpu(cpu) {
4244 txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
4245 txq_pcpu->size = txq->size;
4251 /* Free allocated TXQ resources */
4252 static void mvpp2_txq_deinit(struct mvpp2_port *port,
4253 struct mvpp2_tx_queue *txq)
4257 txq->next_desc_to_proc = 0;
4260 /* Set minimum bandwidth for disabled TXQs */
4261 mvpp2_write(port->priv, MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(txq->id), 0);
4263 /* Set Tx descriptors queue starting address and size */
4264 mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
4265 mvpp2_write(port->priv, MVPP2_TXQ_DESC_ADDR_REG, 0);
4266 mvpp2_write(port->priv, MVPP2_TXQ_DESC_SIZE_REG, 0);
4269 /* Cleanup Tx ports */
4270 static void mvpp2_txq_clean(struct mvpp2_port *port, struct mvpp2_tx_queue *txq)
4272 struct mvpp2_txq_pcpu *txq_pcpu;
4273 int delay, pending, cpu;
4276 mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
4277 val = mvpp2_read(port->priv, MVPP2_TXQ_PREF_BUF_REG);
4278 val |= MVPP2_TXQ_DRAIN_EN_MASK;
4279 mvpp2_write(port->priv, MVPP2_TXQ_PREF_BUF_REG, val);
4281 /* The napi queue has been stopped so wait for all packets
4282 * to be transmitted.
4286 if (delay >= MVPP2_TX_PENDING_TIMEOUT_MSEC) {
4287 netdev_warn(port->dev,
4288 "port %d: cleaning queue %d timed out\n",
4289 port->id, txq->log_id);
4295 pending = mvpp2_txq_pend_desc_num_get(port, txq);
4298 val &= ~MVPP2_TXQ_DRAIN_EN_MASK;
4299 mvpp2_write(port->priv, MVPP2_TXQ_PREF_BUF_REG, val);
4301 for_each_present_cpu(cpu) {
4302 txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
4304 /* Release all packets */
4305 mvpp2_txq_bufs_free(port, txq, txq_pcpu, txq_pcpu->count);
4308 txq_pcpu->count = 0;
4309 txq_pcpu->txq_put_index = 0;
4310 txq_pcpu->txq_get_index = 0;
4314 /* Cleanup all Tx queues */
4315 static void mvpp2_cleanup_txqs(struct mvpp2_port *port)
4317 struct mvpp2_tx_queue *txq;
4321 val = mvpp2_read(port->priv, MVPP2_TX_PORT_FLUSH_REG);
4323 /* Reset Tx ports and delete Tx queues */
4324 val |= MVPP2_TX_PORT_FLUSH_MASK(port->id);
4325 mvpp2_write(port->priv, MVPP2_TX_PORT_FLUSH_REG, val);
4327 for (queue = 0; queue < txq_number; queue++) {
4328 txq = port->txqs[queue];
4329 mvpp2_txq_clean(port, txq);
4330 mvpp2_txq_deinit(port, txq);
4333 mvpp2_txq_sent_counter_clear(port);
4335 val &= ~MVPP2_TX_PORT_FLUSH_MASK(port->id);
4336 mvpp2_write(port->priv, MVPP2_TX_PORT_FLUSH_REG, val);
4339 /* Cleanup all Rx queues */
4340 static void mvpp2_cleanup_rxqs(struct mvpp2_port *port)
4344 for (queue = 0; queue < rxq_number; queue++)
4345 mvpp2_rxq_deinit(port, port->rxqs[queue]);
4348 /* Init all Rx queues for port */
4349 static int mvpp2_setup_rxqs(struct mvpp2_port *port)
4353 for (queue = 0; queue < rxq_number; queue++) {
4354 err = mvpp2_rxq_init(port, port->rxqs[queue]);
4361 mvpp2_cleanup_rxqs(port);
4365 /* Init all tx queues for port */
4366 static int mvpp2_setup_txqs(struct mvpp2_port *port)
4368 struct mvpp2_tx_queue *txq;
4371 for (queue = 0; queue < txq_number; queue++) {
4372 txq = port->txqs[queue];
4373 err = mvpp2_txq_init(port, txq);
4378 mvpp2_txq_sent_counter_clear(port);
4382 mvpp2_cleanup_txqs(port);
4387 static void mvpp2_link_event(struct mvpp2_port *port)
4389 struct phy_device *phydev = port->phy_dev;
4390 int status_change = 0;
4394 if ((port->speed != phydev->speed) ||
4395 (port->duplex != phydev->duplex)) {
4398 val = readl(port->base + MVPP2_GMAC_AUTONEG_CONFIG);
4399 val &= ~(MVPP2_GMAC_CONFIG_MII_SPEED |
4400 MVPP2_GMAC_CONFIG_GMII_SPEED |
4401 MVPP2_GMAC_CONFIG_FULL_DUPLEX |
4402 MVPP2_GMAC_AN_SPEED_EN |
4403 MVPP2_GMAC_AN_DUPLEX_EN);
4406 val |= MVPP2_GMAC_CONFIG_FULL_DUPLEX;
4408 if (phydev->speed == SPEED_1000)
4409 val |= MVPP2_GMAC_CONFIG_GMII_SPEED;
4410 else if (phydev->speed == SPEED_100)
4411 val |= MVPP2_GMAC_CONFIG_MII_SPEED;
4413 writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG);
4415 port->duplex = phydev->duplex;
4416 port->speed = phydev->speed;
4420 if (phydev->link != port->link) {
4421 if (!phydev->link) {
4426 port->link = phydev->link;
4430 if (status_change) {
4432 val = readl(port->base + MVPP2_GMAC_AUTONEG_CONFIG);
4433 val |= (MVPP2_GMAC_FORCE_LINK_PASS |
4434 MVPP2_GMAC_FORCE_LINK_DOWN);
4435 writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG);
4436 mvpp2_egress_enable(port);
4437 mvpp2_ingress_enable(port);
4439 mvpp2_ingress_disable(port);
4440 mvpp2_egress_disable(port);
4445 /* Main RX/TX processing routines */
4447 /* Display more error info */
4448 static void mvpp2_rx_error(struct mvpp2_port *port,
4449 struct mvpp2_rx_desc *rx_desc)
4451 u32 status = mvpp2_rxdesc_status_get(port, rx_desc);
4452 size_t sz = mvpp2_rxdesc_size_get(port, rx_desc);
4454 switch (status & MVPP2_RXD_ERR_CODE_MASK) {
4455 case MVPP2_RXD_ERR_CRC:
4456 netdev_err(port->dev, "bad rx status %08x (crc error), size=%zu\n",
4459 case MVPP2_RXD_ERR_OVERRUN:
4460 netdev_err(port->dev, "bad rx status %08x (overrun error), size=%zu\n",
4463 case MVPP2_RXD_ERR_RESOURCE:
4464 netdev_err(port->dev, "bad rx status %08x (resource error), size=%zu\n",
4470 /* Reuse skb if possible, or allocate a new skb and add it to BM pool */
4471 static int mvpp2_rx_refill(struct mvpp2_port *port,
4472 struct mvpp2_bm_pool *bm_pool,
4473 u32 bm, dma_addr_t dma_addr)
4475 mvpp2_pool_refill(port, bm, dma_addr, (unsigned long)dma_addr);
4479 /* Set hw internals when starting port */
4480 static void mvpp2_start_dev(struct mvpp2_port *port)
4482 mvpp2_gmac_max_rx_size_set(port);
4483 mvpp2_txp_max_tx_size_set(port);
4485 if (port->priv->hw_version == MVPP21)
4486 mvpp2_port_enable(port);
4488 gop_port_enable(port, 1);
4491 /* Set hw internals when stopping port */
4492 static void mvpp2_stop_dev(struct mvpp2_port *port)
4494 /* Stop new packets from arriving to RXQs */
4495 mvpp2_ingress_disable(port);
4497 mvpp2_egress_disable(port);
4499 if (port->priv->hw_version == MVPP21)
4500 mvpp2_port_disable(port);
4502 gop_port_enable(port, 0);
4505 static int mvpp2_phy_connect(struct udevice *dev, struct mvpp2_port *port)
4507 struct phy_device *phy_dev;
4509 if (!port->init || port->link == 0) {
4510 phy_dev = phy_connect(port->priv->bus, port->phyaddr, dev,
4511 port->phy_interface);
4512 port->phy_dev = phy_dev;
4514 netdev_err(port->dev, "cannot connect to phy\n");
4517 phy_dev->supported &= PHY_GBIT_FEATURES;
4518 phy_dev->advertising = phy_dev->supported;
4520 port->phy_dev = phy_dev;
4525 phy_config(phy_dev);
4526 phy_startup(phy_dev);
4527 if (!phy_dev->link) {
4528 printf("%s: No link\n", phy_dev->dev->name);
4534 mvpp2_egress_enable(port);
4535 mvpp2_ingress_enable(port);
4541 static int mvpp2_open(struct udevice *dev, struct mvpp2_port *port)
4543 unsigned char mac_bcast[ETH_ALEN] = {
4544 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
4547 err = mvpp2_prs_mac_da_accept(port->priv, port->id, mac_bcast, true);
4549 netdev_err(dev, "mvpp2_prs_mac_da_accept BC failed\n");
4552 err = mvpp2_prs_mac_da_accept(port->priv, port->id,
4553 port->dev_addr, true);
4555 netdev_err(dev, "mvpp2_prs_mac_da_accept MC failed\n");
4558 err = mvpp2_prs_def_flow(port);
4560 netdev_err(dev, "mvpp2_prs_def_flow failed\n");
4564 /* Allocate the Rx/Tx queues */
4565 err = mvpp2_setup_rxqs(port);
4567 netdev_err(port->dev, "cannot allocate Rx queues\n");
4571 err = mvpp2_setup_txqs(port);
4573 netdev_err(port->dev, "cannot allocate Tx queues\n");
4577 err = mvpp2_phy_connect(dev, port);
4581 mvpp2_link_event(port);
4583 mvpp2_start_dev(port);
4588 /* No Device ops here in U-Boot */
4590 /* Driver initialization */
4592 static void mvpp2_port_power_up(struct mvpp2_port *port)
4594 struct mvpp2 *priv = port->priv;
4596 /* On PPv2.2 the GoP / interface configuration has already been done */
4597 if (priv->hw_version == MVPP21)
4598 mvpp2_port_mii_set(port);
4599 mvpp2_port_periodic_xon_disable(port);
4600 if (priv->hw_version == MVPP21)
4601 mvpp2_port_fc_adv_enable(port);
4602 mvpp2_port_reset(port);
4605 /* Initialize port HW */
4606 static int mvpp2_port_init(struct udevice *dev, struct mvpp2_port *port)
4608 struct mvpp2 *priv = port->priv;
4609 struct mvpp2_txq_pcpu *txq_pcpu;
4610 int queue, cpu, err;
4612 if (port->first_rxq + rxq_number >
4613 MVPP2_MAX_PORTS * priv->max_port_rxqs)
4617 mvpp2_egress_disable(port);
4618 if (priv->hw_version == MVPP21)
4619 mvpp2_port_disable(port);
4621 gop_port_enable(port, 0);
4623 port->txqs = devm_kcalloc(dev, txq_number, sizeof(*port->txqs),
4628 /* Associate physical Tx queues to this port and initialize.
4629 * The mapping is predefined.
4631 for (queue = 0; queue < txq_number; queue++) {
4632 int queue_phy_id = mvpp2_txq_phys(port->id, queue);
4633 struct mvpp2_tx_queue *txq;
4635 txq = devm_kzalloc(dev, sizeof(*txq), GFP_KERNEL);
4639 txq->pcpu = devm_kzalloc(dev, sizeof(struct mvpp2_txq_pcpu),
4644 txq->id = queue_phy_id;
4645 txq->log_id = queue;
4646 txq->done_pkts_coal = MVPP2_TXDONE_COAL_PKTS_THRESH;
4647 for_each_present_cpu(cpu) {
4648 txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
4649 txq_pcpu->cpu = cpu;
4652 port->txqs[queue] = txq;
4655 port->rxqs = devm_kcalloc(dev, rxq_number, sizeof(*port->rxqs),
4660 /* Allocate and initialize Rx queue for this port */
4661 for (queue = 0; queue < rxq_number; queue++) {
4662 struct mvpp2_rx_queue *rxq;
4664 /* Map physical Rx queue to port's logical Rx queue */
4665 rxq = devm_kzalloc(dev, sizeof(*rxq), GFP_KERNEL);
4668 /* Map this Rx queue to a physical queue */
4669 rxq->id = port->first_rxq + queue;
4670 rxq->port = port->id;
4671 rxq->logic_rxq = queue;
4673 port->rxqs[queue] = rxq;
4676 /* Configure Rx queue group interrupt for this port */
4677 if (priv->hw_version == MVPP21) {
4678 mvpp2_write(priv, MVPP21_ISR_RXQ_GROUP_REG(port->id),
4683 val = (port->id << MVPP22_ISR_RXQ_GROUP_INDEX_GROUP_OFFSET);
4684 mvpp2_write(priv, MVPP22_ISR_RXQ_GROUP_INDEX_REG, val);
4686 val = (CONFIG_MV_ETH_RXQ <<
4687 MVPP22_ISR_RXQ_SUB_GROUP_SIZE_OFFSET);
4688 mvpp2_write(priv, MVPP22_ISR_RXQ_SUB_GROUP_CONFIG_REG, val);
4691 /* Create Rx descriptor rings */
4692 for (queue = 0; queue < rxq_number; queue++) {
4693 struct mvpp2_rx_queue *rxq = port->rxqs[queue];
4695 rxq->size = port->rx_ring_size;
4696 rxq->pkts_coal = MVPP2_RX_COAL_PKTS;
4697 rxq->time_coal = MVPP2_RX_COAL_USEC;
4700 mvpp2_ingress_disable(port);
4702 /* Port default configuration */
4703 mvpp2_defaults_set(port);
4705 /* Port's classifier configuration */
4706 mvpp2_cls_oversize_rxq_set(port);
4707 mvpp2_cls_port_config(port);
4709 /* Provide an initial Rx packet size */
4710 port->pkt_size = MVPP2_RX_PKT_SIZE(PKTSIZE_ALIGN);
4712 /* Initialize pools for swf */
4713 err = mvpp2_swf_bm_pool_init(port);
4720 static int phy_info_parse(struct udevice *dev, struct mvpp2_port *port)
4722 int port_node = dev_of_offset(dev);
4723 const char *phy_mode_str;
4729 phy_node = fdtdec_lookup_phandle(gd->fdt_blob, port_node, "phy");
4731 dev_err(&pdev->dev, "missing phy\n");
4735 phy_mode_str = fdt_getprop(gd->fdt_blob, port_node, "phy-mode", NULL);
4737 phy_mode = phy_get_interface_by_name(phy_mode_str);
4738 if (phy_mode == -1) {
4739 dev_err(&pdev->dev, "incorrect phy mode\n");
4743 id = fdtdec_get_int(gd->fdt_blob, port_node, "port-id", -1);
4745 dev_err(&pdev->dev, "missing port-id value\n");
4751 * Not sure if this DT property "phy-speed" will get accepted, so
4752 * this might change later
4754 /* Get phy-speed for SGMII 2.5Gbps vs 1Gbps setup */
4755 port->phy_speed = fdtdec_get_int(gd->fdt_blob, port_node,
4758 phyaddr = fdtdec_get_int(gd->fdt_blob, phy_node, "reg", 0);
4761 if (port->priv->hw_version == MVPP21)
4762 port->first_rxq = port->id * rxq_number;
4764 port->first_rxq = port->id * port->priv->max_port_rxqs;
4765 port->phy_node = phy_node;
4766 port->phy_interface = phy_mode;
4767 port->phyaddr = phyaddr;
4772 /* Ports initialization */
4773 static int mvpp2_port_probe(struct udevice *dev,
4774 struct mvpp2_port *port,
4780 port->tx_ring_size = MVPP2_MAX_TXD;
4781 port->rx_ring_size = MVPP2_MAX_RXD;
4783 err = mvpp2_port_init(dev, port);
4785 dev_err(&pdev->dev, "failed to init port %d\n", port->id);
4788 mvpp2_port_power_up(port);
4790 priv->port_list[port->id] = port;
4794 /* Initialize decoding windows */
4795 static void mvpp2_conf_mbus_windows(const struct mbus_dram_target_info *dram,
4801 for (i = 0; i < 6; i++) {
4802 mvpp2_write(priv, MVPP2_WIN_BASE(i), 0);
4803 mvpp2_write(priv, MVPP2_WIN_SIZE(i), 0);
4806 mvpp2_write(priv, MVPP2_WIN_REMAP(i), 0);
4811 for (i = 0; i < dram->num_cs; i++) {
4812 const struct mbus_dram_window *cs = dram->cs + i;
4814 mvpp2_write(priv, MVPP2_WIN_BASE(i),
4815 (cs->base & 0xffff0000) | (cs->mbus_attr << 8) |
4816 dram->mbus_dram_target_id);
4818 mvpp2_write(priv, MVPP2_WIN_SIZE(i),
4819 (cs->size - 1) & 0xffff0000);
4821 win_enable |= (1 << i);
4824 mvpp2_write(priv, MVPP2_BASE_ADDR_ENABLE, win_enable);
4827 /* Initialize Rx FIFO's */
4828 static void mvpp2_rx_fifo_init(struct mvpp2 *priv)
4832 for (port = 0; port < MVPP2_MAX_PORTS; port++) {
4833 if (priv->hw_version == MVPP22) {
4836 MVPP2_RX_DATA_FIFO_SIZE_REG(port),
4837 MVPP22_RX_FIFO_10GB_PORT_DATA_SIZE);
4839 MVPP2_RX_ATTR_FIFO_SIZE_REG(port),
4840 MVPP22_RX_FIFO_10GB_PORT_ATTR_SIZE);
4841 } else if (port == 1) {
4843 MVPP2_RX_DATA_FIFO_SIZE_REG(port),
4844 MVPP22_RX_FIFO_2_5GB_PORT_DATA_SIZE);
4846 MVPP2_RX_ATTR_FIFO_SIZE_REG(port),
4847 MVPP22_RX_FIFO_2_5GB_PORT_ATTR_SIZE);
4850 MVPP2_RX_DATA_FIFO_SIZE_REG(port),
4851 MVPP22_RX_FIFO_1GB_PORT_DATA_SIZE);
4853 MVPP2_RX_ATTR_FIFO_SIZE_REG(port),
4854 MVPP22_RX_FIFO_1GB_PORT_ATTR_SIZE);
4857 mvpp2_write(priv, MVPP2_RX_DATA_FIFO_SIZE_REG(port),
4858 MVPP21_RX_FIFO_PORT_DATA_SIZE);
4859 mvpp2_write(priv, MVPP2_RX_ATTR_FIFO_SIZE_REG(port),
4860 MVPP21_RX_FIFO_PORT_ATTR_SIZE);
4864 mvpp2_write(priv, MVPP2_RX_MIN_PKT_SIZE_REG,
4865 MVPP2_RX_FIFO_PORT_MIN_PKT);
4866 mvpp2_write(priv, MVPP2_RX_FIFO_INIT_REG, 0x1);
4869 /* Initialize Tx FIFO's */
4870 static void mvpp2_tx_fifo_init(struct mvpp2 *priv)
4874 for (port = 0; port < MVPP2_MAX_PORTS; port++) {
4875 /* Port 0 supports 10KB TX FIFO */
4877 val = MVPP2_TX_FIFO_DATA_SIZE_10KB &
4878 MVPP22_TX_FIFO_SIZE_MASK;
4880 val = MVPP2_TX_FIFO_DATA_SIZE_3KB &
4881 MVPP22_TX_FIFO_SIZE_MASK;
4883 mvpp2_write(priv, MVPP22_TX_FIFO_SIZE_REG(port), val);
4887 static void mvpp2_axi_init(struct mvpp2 *priv)
4889 u32 val, rdval, wrval;
4891 mvpp2_write(priv, MVPP22_BM_ADDR_HIGH_RLS_REG, 0x0);
4893 /* AXI Bridge Configuration */
4895 rdval = MVPP22_AXI_CODE_CACHE_RD_CACHE
4896 << MVPP22_AXI_ATTR_CACHE_OFFS;
4897 rdval |= MVPP22_AXI_CODE_DOMAIN_OUTER_DOM
4898 << MVPP22_AXI_ATTR_DOMAIN_OFFS;
4900 wrval = MVPP22_AXI_CODE_CACHE_WR_CACHE
4901 << MVPP22_AXI_ATTR_CACHE_OFFS;
4902 wrval |= MVPP22_AXI_CODE_DOMAIN_OUTER_DOM
4903 << MVPP22_AXI_ATTR_DOMAIN_OFFS;
4906 mvpp2_write(priv, MVPP22_AXI_BM_WR_ATTR_REG, wrval);
4907 mvpp2_write(priv, MVPP22_AXI_BM_RD_ATTR_REG, rdval);
4910 mvpp2_write(priv, MVPP22_AXI_AGGRQ_DESCR_RD_ATTR_REG, rdval);
4911 mvpp2_write(priv, MVPP22_AXI_TXQ_DESCR_WR_ATTR_REG, wrval);
4912 mvpp2_write(priv, MVPP22_AXI_TXQ_DESCR_RD_ATTR_REG, rdval);
4913 mvpp2_write(priv, MVPP22_AXI_RXQ_DESCR_WR_ATTR_REG, wrval);
4916 mvpp2_write(priv, MVPP22_AXI_TX_DATA_RD_ATTR_REG, rdval);
4917 mvpp2_write(priv, MVPP22_AXI_RX_DATA_WR_ATTR_REG, wrval);
4919 val = MVPP22_AXI_CODE_CACHE_NON_CACHE
4920 << MVPP22_AXI_CODE_CACHE_OFFS;
4921 val |= MVPP22_AXI_CODE_DOMAIN_SYSTEM
4922 << MVPP22_AXI_CODE_DOMAIN_OFFS;
4923 mvpp2_write(priv, MVPP22_AXI_RD_NORMAL_CODE_REG, val);
4924 mvpp2_write(priv, MVPP22_AXI_WR_NORMAL_CODE_REG, val);
4926 val = MVPP22_AXI_CODE_CACHE_RD_CACHE
4927 << MVPP22_AXI_CODE_CACHE_OFFS;
4928 val |= MVPP22_AXI_CODE_DOMAIN_OUTER_DOM
4929 << MVPP22_AXI_CODE_DOMAIN_OFFS;
4931 mvpp2_write(priv, MVPP22_AXI_RD_SNOOP_CODE_REG, val);
4933 val = MVPP22_AXI_CODE_CACHE_WR_CACHE
4934 << MVPP22_AXI_CODE_CACHE_OFFS;
4935 val |= MVPP22_AXI_CODE_DOMAIN_OUTER_DOM
4936 << MVPP22_AXI_CODE_DOMAIN_OFFS;
4938 mvpp2_write(priv, MVPP22_AXI_WR_SNOOP_CODE_REG, val);
4941 /* Initialize network controller common part HW */
4942 static int mvpp2_init(struct udevice *dev, struct mvpp2 *priv)
4944 const struct mbus_dram_target_info *dram_target_info;
4948 /* Checks for hardware constraints (U-Boot uses only one rxq) */
4949 if ((rxq_number > priv->max_port_rxqs) ||
4950 (txq_number > MVPP2_MAX_TXQ)) {
4951 dev_err(&pdev->dev, "invalid queue size parameter\n");
4955 /* MBUS windows configuration */
4956 dram_target_info = mvebu_mbus_dram_info();
4957 if (dram_target_info)
4958 mvpp2_conf_mbus_windows(dram_target_info, priv);
4960 if (priv->hw_version == MVPP22)
4961 mvpp2_axi_init(priv);
4963 if (priv->hw_version == MVPP21) {
4964 /* Disable HW PHY polling */
4965 val = readl(priv->lms_base + MVPP2_PHY_AN_CFG0_REG);
4966 val |= MVPP2_PHY_AN_STOP_SMI0_MASK;
4967 writel(val, priv->lms_base + MVPP2_PHY_AN_CFG0_REG);
4969 /* Enable HW PHY polling */
4970 val = readl(priv->iface_base + MVPP22_SMI_MISC_CFG_REG);
4971 val |= MVPP22_SMI_POLLING_EN;
4972 writel(val, priv->iface_base + MVPP22_SMI_MISC_CFG_REG);
4975 /* Allocate and initialize aggregated TXQs */
4976 priv->aggr_txqs = devm_kcalloc(dev, num_present_cpus(),
4977 sizeof(struct mvpp2_tx_queue),
4979 if (!priv->aggr_txqs)
4982 for_each_present_cpu(i) {
4983 priv->aggr_txqs[i].id = i;
4984 priv->aggr_txqs[i].size = MVPP2_AGGR_TXQ_SIZE;
4985 err = mvpp2_aggr_txq_init(dev, &priv->aggr_txqs[i],
4986 MVPP2_AGGR_TXQ_SIZE, i, priv);
4992 mvpp2_rx_fifo_init(priv);
4995 if (priv->hw_version == MVPP22)
4996 mvpp2_tx_fifo_init(priv);
4998 /* Reset Rx queue group interrupt configuration */
4999 for (i = 0; i < MVPP2_MAX_PORTS; i++) {
5000 if (priv->hw_version == MVPP21) {
5001 mvpp2_write(priv, MVPP21_ISR_RXQ_GROUP_REG(i),
5007 val = (i << MVPP22_ISR_RXQ_GROUP_INDEX_GROUP_OFFSET);
5008 mvpp2_write(priv, MVPP22_ISR_RXQ_GROUP_INDEX_REG, val);
5010 val = (CONFIG_MV_ETH_RXQ <<
5011 MVPP22_ISR_RXQ_SUB_GROUP_SIZE_OFFSET);
5013 MVPP22_ISR_RXQ_SUB_GROUP_CONFIG_REG, val);
5017 if (priv->hw_version == MVPP21)
5018 writel(MVPP2_EXT_GLOBAL_CTRL_DEFAULT,
5019 priv->lms_base + MVPP2_MNG_EXTENDED_GLOBAL_CTRL_REG);
5021 /* Allow cache snoop when transmiting packets */
5022 mvpp2_write(priv, MVPP2_TX_SNOOP_REG, 0x1);
5024 /* Buffer Manager initialization */
5025 err = mvpp2_bm_init(dev, priv);
5029 /* Parser default initialization */
5030 err = mvpp2_prs_default_init(dev, priv);
5034 /* Classifier default initialization */
5035 mvpp2_cls_init(priv);
5040 /* SMI / MDIO functions */
5042 static int smi_wait_ready(struct mvpp2 *priv)
5044 u32 timeout = MVPP2_SMI_TIMEOUT;
5047 /* wait till the SMI is not busy */
5049 /* read smi register */
5050 smi_reg = readl(priv->mdio_base);
5051 if (timeout-- == 0) {
5052 printf("Error: SMI busy timeout\n");
5055 } while (smi_reg & MVPP2_SMI_BUSY);
5061 * mpp2_mdio_read - miiphy_read callback function.
5063 * Returns 16bit phy register value, or 0xffff on error
5065 static int mpp2_mdio_read(struct mii_dev *bus, int addr, int devad, int reg)
5067 struct mvpp2 *priv = bus->priv;
5071 /* check parameters */
5072 if (addr > MVPP2_PHY_ADDR_MASK) {
5073 printf("Error: Invalid PHY address %d\n", addr);
5077 if (reg > MVPP2_PHY_REG_MASK) {
5078 printf("Err: Invalid register offset %d\n", reg);
5082 /* wait till the SMI is not busy */
5083 if (smi_wait_ready(priv) < 0)
5086 /* fill the phy address and regiser offset and read opcode */
5087 smi_reg = (addr << MVPP2_SMI_DEV_ADDR_OFFS)
5088 | (reg << MVPP2_SMI_REG_ADDR_OFFS)
5089 | MVPP2_SMI_OPCODE_READ;
5091 /* write the smi register */
5092 writel(smi_reg, priv->mdio_base);
5094 /* wait till read value is ready */
5095 timeout = MVPP2_SMI_TIMEOUT;
5098 /* read smi register */
5099 smi_reg = readl(priv->mdio_base);
5100 if (timeout-- == 0) {
5101 printf("Err: SMI read ready timeout\n");
5104 } while (!(smi_reg & MVPP2_SMI_READ_VALID));
5106 /* Wait for the data to update in the SMI register */
5107 for (timeout = 0; timeout < MVPP2_SMI_TIMEOUT; timeout++)
5110 return readl(priv->mdio_base) & MVPP2_SMI_DATA_MASK;
5114 * mpp2_mdio_write - miiphy_write callback function.
5116 * Returns 0 if write succeed, -EINVAL on bad parameters
5119 static int mpp2_mdio_write(struct mii_dev *bus, int addr, int devad, int reg,
5122 struct mvpp2 *priv = bus->priv;
5125 /* check parameters */
5126 if (addr > MVPP2_PHY_ADDR_MASK) {
5127 printf("Error: Invalid PHY address %d\n", addr);
5131 if (reg > MVPP2_PHY_REG_MASK) {
5132 printf("Err: Invalid register offset %d\n", reg);
5136 /* wait till the SMI is not busy */
5137 if (smi_wait_ready(priv) < 0)
5140 /* fill the phy addr and reg offset and write opcode and data */
5141 smi_reg = value << MVPP2_SMI_DATA_OFFS;
5142 smi_reg |= (addr << MVPP2_SMI_DEV_ADDR_OFFS)
5143 | (reg << MVPP2_SMI_REG_ADDR_OFFS);
5144 smi_reg &= ~MVPP2_SMI_OPCODE_READ;
5146 /* write the smi register */
5147 writel(smi_reg, priv->mdio_base);
5152 static int mvpp2_recv(struct udevice *dev, int flags, uchar **packetp)
5154 struct mvpp2_port *port = dev_get_priv(dev);
5155 struct mvpp2_rx_desc *rx_desc;
5156 struct mvpp2_bm_pool *bm_pool;
5157 dma_addr_t dma_addr;
5159 int pool, rx_bytes, err;
5161 struct mvpp2_rx_queue *rxq;
5162 u32 cause_rx_tx, cause_rx, cause_misc;
5165 cause_rx_tx = mvpp2_read(port->priv,
5166 MVPP2_ISR_RX_TX_CAUSE_REG(port->id));
5167 cause_rx_tx &= ~MVPP2_CAUSE_TXQ_OCCUP_DESC_ALL_MASK;
5168 cause_misc = cause_rx_tx & MVPP2_CAUSE_MISC_SUM_MASK;
5169 if (!cause_rx_tx && !cause_misc)
5172 cause_rx = cause_rx_tx & MVPP2_CAUSE_RXQ_OCCUP_DESC_ALL_MASK;
5174 /* Process RX packets */
5175 cause_rx |= port->pending_cause_rx;
5176 rxq = mvpp2_get_rx_queue(port, cause_rx);
5178 /* Get number of received packets and clamp the to-do */
5179 rx_received = mvpp2_rxq_received(port, rxq->id);
5181 /* Return if no packets are received */
5185 rx_desc = mvpp2_rxq_next_desc_get(rxq);
5186 rx_status = mvpp2_rxdesc_status_get(port, rx_desc);
5187 rx_bytes = mvpp2_rxdesc_size_get(port, rx_desc);
5188 rx_bytes -= MVPP2_MH_SIZE;
5189 dma_addr = mvpp2_rxdesc_dma_addr_get(port, rx_desc);
5191 bm = mvpp2_bm_cookie_build(port, rx_desc);
5192 pool = mvpp2_bm_cookie_pool_get(bm);
5193 bm_pool = &port->priv->bm_pools[pool];
5195 /* In case of an error, release the requested buffer pointer
5196 * to the Buffer Manager. This request process is controlled
5197 * by the hardware, and the information about the buffer is
5198 * comprised by the RX descriptor.
5200 if (rx_status & MVPP2_RXD_ERR_SUMMARY) {
5201 mvpp2_rx_error(port, rx_desc);
5202 /* Return the buffer to the pool */
5203 mvpp2_pool_refill(port, bm, dma_addr, dma_addr);
5207 err = mvpp2_rx_refill(port, bm_pool, bm, dma_addr);
5209 netdev_err(port->dev, "failed to refill BM pools\n");
5213 /* Update Rx queue management counters */
5215 mvpp2_rxq_status_update(port, rxq->id, 1, 1);
5217 /* give packet to stack - skip on first n bytes */
5218 data = (u8 *)dma_addr + 2 + 32;
5224 * No cache invalidation needed here, since the rx_buffer's are
5225 * located in a uncached memory region
5233 static void mvpp2_txq_drain(struct mvpp2_port *port, struct mvpp2_tx_queue *txq,
5238 mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
5239 val = mvpp2_read(port->priv, MVPP2_TXQ_PREF_BUF_REG);
5241 val |= MVPP2_TXQ_DRAIN_EN_MASK;
5243 val &= ~MVPP2_TXQ_DRAIN_EN_MASK;
5244 mvpp2_write(port->priv, MVPP2_TXQ_PREF_BUF_REG, val);
5247 static int mvpp2_send(struct udevice *dev, void *packet, int length)
5249 struct mvpp2_port *port = dev_get_priv(dev);
5250 struct mvpp2_tx_queue *txq, *aggr_txq;
5251 struct mvpp2_tx_desc *tx_desc;
5255 txq = port->txqs[0];
5256 aggr_txq = &port->priv->aggr_txqs[smp_processor_id()];
5258 /* Get a descriptor for the first part of the packet */
5259 tx_desc = mvpp2_txq_next_desc_get(aggr_txq);
5260 mvpp2_txdesc_txq_set(port, tx_desc, txq->id);
5261 mvpp2_txdesc_size_set(port, tx_desc, length);
5262 mvpp2_txdesc_offset_set(port, tx_desc,
5263 (dma_addr_t)packet & MVPP2_TX_DESC_ALIGN);
5264 mvpp2_txdesc_dma_addr_set(port, tx_desc,
5265 (dma_addr_t)packet & ~MVPP2_TX_DESC_ALIGN);
5266 /* First and Last descriptor */
5267 mvpp2_txdesc_cmd_set(port, tx_desc,
5268 MVPP2_TXD_L4_CSUM_NOT | MVPP2_TXD_IP_CSUM_DISABLE
5269 | MVPP2_TXD_F_DESC | MVPP2_TXD_L_DESC);
5272 flush_dcache_range((unsigned long)packet,
5273 (unsigned long)packet + ALIGN(length, PKTALIGN));
5275 /* Enable transmit */
5277 mvpp2_aggr_txq_pend_desc_add(port, 1);
5279 mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
5283 if (timeout++ > 10000) {
5284 printf("timeout: packet not sent from aggregated to phys TXQ\n");
5287 tx_done = mvpp2_txq_pend_desc_num_get(port, txq);
5290 /* Enable TXQ drain */
5291 mvpp2_txq_drain(port, txq, 1);
5295 if (timeout++ > 10000) {
5296 printf("timeout: packet not sent\n");
5299 tx_done = mvpp2_txq_sent_desc_proc(port, txq);
5302 /* Disable TXQ drain */
5303 mvpp2_txq_drain(port, txq, 0);
5308 static int mvpp2_start(struct udevice *dev)
5310 struct eth_pdata *pdata = dev_get_platdata(dev);
5311 struct mvpp2_port *port = dev_get_priv(dev);
5313 /* Load current MAC address */
5314 memcpy(port->dev_addr, pdata->enetaddr, ETH_ALEN);
5316 /* Reconfigure parser accept the original MAC address */
5317 mvpp2_prs_update_mac_da(port, port->dev_addr);
5319 mvpp2_port_power_up(port);
5321 mvpp2_open(dev, port);
5326 static void mvpp2_stop(struct udevice *dev)
5328 struct mvpp2_port *port = dev_get_priv(dev);
5330 mvpp2_stop_dev(port);
5331 mvpp2_cleanup_rxqs(port);
5332 mvpp2_cleanup_txqs(port);
5335 static int mvpp22_smi_phy_addr_cfg(struct mvpp2_port *port)
5337 writel(port->phyaddr, port->priv->iface_base +
5338 MVPP22_SMI_PHY_ADDR_REG(port->gop_id));
5343 static int mvpp2_base_probe(struct udevice *dev)
5345 struct mvpp2 *priv = dev_get_priv(dev);
5346 struct mii_dev *bus;
5351 /* Save hw-version */
5352 priv->hw_version = dev_get_driver_data(dev);
5355 * U-Boot special buffer handling:
5357 * Allocate buffer area for descs and rx_buffers. This is only
5358 * done once for all interfaces. As only one interface can
5359 * be active. Make this area DMA-safe by disabling the D-cache
5362 /* Align buffer area for descs and rx_buffers to 1MiB */
5363 bd_space = memalign(1 << MMU_SECTION_SHIFT, BD_SPACE);
5364 mmu_set_region_dcache_behaviour((unsigned long)bd_space,
5365 BD_SPACE, DCACHE_OFF);
5367 buffer_loc.aggr_tx_descs = (struct mvpp2_tx_desc *)bd_space;
5368 size += MVPP2_AGGR_TXQ_SIZE * MVPP2_DESC_ALIGNED_SIZE;
5370 buffer_loc.tx_descs =
5371 (struct mvpp2_tx_desc *)((unsigned long)bd_space + size);
5372 size += MVPP2_MAX_TXD * MVPP2_DESC_ALIGNED_SIZE;
5374 buffer_loc.rx_descs =
5375 (struct mvpp2_rx_desc *)((unsigned long)bd_space + size);
5376 size += MVPP2_MAX_RXD * MVPP2_DESC_ALIGNED_SIZE;
5378 for (i = 0; i < MVPP2_BM_POOLS_NUM; i++) {
5379 buffer_loc.bm_pool[i] =
5380 (unsigned long *)((unsigned long)bd_space + size);
5381 if (priv->hw_version == MVPP21)
5382 size += MVPP2_BM_POOL_SIZE_MAX * 2 * sizeof(u32);
5384 size += MVPP2_BM_POOL_SIZE_MAX * 2 * sizeof(u64);
5387 for (i = 0; i < MVPP2_BM_LONG_BUF_NUM; i++) {
5388 buffer_loc.rx_buffer[i] =
5389 (unsigned long *)((unsigned long)bd_space + size);
5390 size += RX_BUFFER_SIZE;
5393 /* Clear the complete area so that all descriptors are cleared */
5394 memset(bd_space, 0, size);
5396 /* Save base addresses for later use */
5397 priv->base = (void *)devfdt_get_addr_index(dev, 0);
5398 if (IS_ERR(priv->base))
5399 return PTR_ERR(priv->base);
5401 if (priv->hw_version == MVPP21) {
5402 priv->lms_base = (void *)devfdt_get_addr_index(dev, 1);
5403 if (IS_ERR(priv->lms_base))
5404 return PTR_ERR(priv->lms_base);
5406 priv->mdio_base = priv->lms_base + MVPP21_SMI;
5408 priv->iface_base = (void *)devfdt_get_addr_index(dev, 1);
5409 if (IS_ERR(priv->iface_base))
5410 return PTR_ERR(priv->iface_base);
5412 priv->mdio_base = priv->iface_base + MVPP22_SMI;
5414 /* Store common base addresses for all ports */
5415 priv->mpcs_base = priv->iface_base + MVPP22_MPCS;
5416 priv->xpcs_base = priv->iface_base + MVPP22_XPCS;
5417 priv->rfu1_base = priv->iface_base + MVPP22_RFU1;
5420 if (priv->hw_version == MVPP21)
5421 priv->max_port_rxqs = 8;
5423 priv->max_port_rxqs = 32;
5425 /* Finally create and register the MDIO bus driver */
5428 printf("Failed to allocate MDIO bus\n");
5432 bus->read = mpp2_mdio_read;
5433 bus->write = mpp2_mdio_write;
5434 snprintf(bus->name, sizeof(bus->name), dev->name);
5435 bus->priv = (void *)priv;
5438 return mdio_register(bus);
5441 static int mvpp2_probe(struct udevice *dev)
5443 struct mvpp2_port *port = dev_get_priv(dev);
5444 struct mvpp2 *priv = dev_get_priv(dev->parent);
5447 /* Only call the probe function for the parent once */
5448 if (!priv->probe_done) {
5449 err = mvpp2_base_probe(dev->parent);
5450 priv->probe_done = 1;
5453 port->priv = dev_get_priv(dev->parent);
5455 err = phy_info_parse(dev, port);
5460 * We need the port specific io base addresses at this stage, since
5461 * gop_port_init() accesses these registers
5463 if (priv->hw_version == MVPP21) {
5464 int priv_common_regs_num = 2;
5466 port->base = (void __iomem *)devfdt_get_addr_index(
5467 dev->parent, priv_common_regs_num + port->id);
5468 if (IS_ERR(port->base))
5469 return PTR_ERR(port->base);
5471 port->gop_id = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
5473 if (port->id == -1) {
5474 dev_err(&pdev->dev, "missing gop-port-id value\n");
5478 port->base = priv->iface_base + MVPP22_PORT_BASE +
5479 port->gop_id * MVPP22_PORT_OFFSET;
5481 /* Set phy address of the port */
5482 mvpp22_smi_phy_addr_cfg(port);
5485 gop_port_init(port);
5488 /* Initialize network controller */
5489 err = mvpp2_init(dev, priv);
5491 dev_err(&pdev->dev, "failed to initialize controller\n");
5495 err = mvpp2_port_probe(dev, port, dev_of_offset(dev), priv);
5499 if (priv->hw_version == MVPP22) {
5500 priv->netc_config |= mvpp2_netc_cfg_create(port->gop_id,
5501 port->phy_interface);
5503 /* Netcomplex configurations for all ports */
5504 gop_netc_init(priv, MV_NETC_FIRST_PHASE);
5505 gop_netc_init(priv, MV_NETC_SECOND_PHASE);
5512 * Empty BM pool and stop its activity before the OS is started
5514 static int mvpp2_remove(struct udevice *dev)
5516 struct mvpp2_port *port = dev_get_priv(dev);
5517 struct mvpp2 *priv = port->priv;
5520 for (i = 0; i < MVPP2_BM_POOLS_NUM; i++)
5521 mvpp2_bm_pool_destroy(dev, priv, &priv->bm_pools[i]);
5526 static const struct eth_ops mvpp2_ops = {
5527 .start = mvpp2_start,
5533 static struct driver mvpp2_driver = {
5536 .probe = mvpp2_probe,
5537 .remove = mvpp2_remove,
5539 .priv_auto_alloc_size = sizeof(struct mvpp2_port),
5540 .platdata_auto_alloc_size = sizeof(struct eth_pdata),
5541 .flags = DM_FLAG_ACTIVE_DMA,
5545 * Use a MISC device to bind the n instances (child nodes) of the
5546 * network base controller in UCLASS_ETH.
5548 static int mvpp2_base_bind(struct udevice *parent)
5550 const void *blob = gd->fdt_blob;
5551 int node = dev_of_offset(parent);
5552 struct uclass_driver *drv;
5553 struct udevice *dev;
5554 struct eth_pdata *plat;
5560 /* Lookup eth driver */
5561 drv = lists_uclass_lookup(UCLASS_ETH);
5563 puts("Cannot find eth driver\n");
5567 base_id_add = base_id;
5569 fdt_for_each_subnode(subnode, blob, node) {
5570 /* Increment base_id for all subnodes, also the disabled ones */
5573 /* Skip disabled ports */
5574 if (!fdtdec_get_is_enabled(blob, subnode))
5577 plat = calloc(1, sizeof(*plat));
5581 id = fdtdec_get_int(blob, subnode, "port-id", -1);
5584 name = calloc(1, 16);
5585 sprintf(name, "mvpp2-%d", id);
5587 /* Create child device UCLASS_ETH and bind it */
5588 device_bind(parent, &mvpp2_driver, name, plat, subnode, &dev);
5589 dev_set_of_offset(dev, subnode);
5595 static const struct udevice_id mvpp2_ids[] = {
5597 .compatible = "marvell,armada-375-pp2",
5601 .compatible = "marvell,armada-7k-pp22",
5607 U_BOOT_DRIVER(mvpp2_base) = {
5608 .name = "mvpp2_base",
5610 .of_match = mvpp2_ids,
5611 .bind = mvpp2_base_bind,
5612 .priv_auto_alloc_size = sizeof(struct mvpp2),