1 /* SPDX-License-Identifier: GPL-2.0+ */
5 * Driver for Alcor Micro AU6601 and AU6621 controllers
11 #define ALCOR_SD_CARD 0
12 #define ALCOR_MS_CARD 1
14 #define DRV_NAME_ALCOR_PCI "alcor_pci"
15 #define DRV_NAME_ALCOR_PCI_SDMMC "alcor_sdmmc"
16 #define DRV_NAME_ALCOR_PCI_MS "alcor_ms"
18 #define PCI_ID_ALCOR_MICRO 0x1AEA
19 #define PCI_ID_AU6601 0x6601
20 #define PCI_ID_AU6621 0x6621
21 #define PCI_ID_AU6625 0x6625
23 #define MHZ_TO_HZ(freq) ((freq) * 1000 * 1000)
25 #define AU6601_BASE_CLOCK 31000000
26 #define AU6601_MIN_CLOCK 150000
27 #define AU6601_MAX_CLOCK 208000000
28 #define AU6601_MAX_DMA_SEGMENTS 64
29 #define AU6601_MAX_PIO_SEGMENTS 1
30 #define AU6601_MAX_DMA_BLOCK_SIZE 0x1000
31 #define AU6601_MAX_PIO_BLOCK_SIZE 0x200
32 #define AU6601_MAX_DMA_BLOCKS 1
33 #define AU6601_DMA_LOCAL_SEGMENTS 1
35 /* registers spotter by reverse engineering but still
36 * with unknown functionality:
37 * 0x10 - ADMA phy address. AU6621 only?
40 * 0x61 - LED related? Always toggled BIT0
41 * 0x63 - Same as 0x61?
45 /* SDMA phy address. Higher then 0x0800.0000?
46 * The au6601 and au6621 have different DMA engines with different issues. One
47 * For example au6621 engine is triggered by addr change. No other interaction
48 * is needed. This means, if we get two buffers with same address, then engine
51 #define AU6601_REG_SDMA_ADDR 0x00
52 #define AU6601_SDMA_MASK 0xffffffff
54 #define AU6601_DMA_BOUNDARY 0x05
55 #define AU6621_DMA_PAGE_CNT 0x05
57 #define AU6601_REG_BUFFER 0x08
58 /* ADMA ctrl? AU6621 only. */
59 #define AU6621_DMA_CTRL 0x0c
60 #define AU6621_DMA_ENABLE BIT(0)
62 #define AU6601_REG_CMD_OPCODE 0x23
64 #define AU6601_REG_CMD_ARG 0x24
65 /* CMD response 4x4 Bytes */
66 #define AU6601_REG_CMD_RSP0 0x30
67 #define AU6601_REG_CMD_RSP1 0x34
68 #define AU6601_REG_CMD_RSP2 0x38
69 #define AU6601_REG_CMD_RSP3 0x3C
70 /* default timeout set to 125: 125 * 40ms = 5 sec
71 * how exactly it is calculated?
73 #define AU6601_TIME_OUT_CTRL 0x69
74 /* Block size for SDMA or PIO */
75 #define AU6601_REG_BLOCK_SIZE 0x6c
76 /* Some power related reg, used together with AU6601_OUTPUT_ENABLE */
77 #define AU6601_POWER_CONTROL 0x70
80 #define AU6601_CLK_SELECT 0x72
81 #define AU6601_CLK_OVER_CLK 0x80
82 #define AU6601_CLK_384_MHZ 0x30
83 #define AU6601_CLK_125_MHZ 0x20
84 #define AU6601_CLK_48_MHZ 0x10
85 #define AU6601_CLK_EXT_PLL 0x04
86 #define AU6601_CLK_X2_MODE 0x02
87 #define AU6601_CLK_ENABLE 0x01
88 #define AU6601_CLK_31_25_MHZ 0x00
90 #define AU6601_CLK_DIVIDER 0x73
92 #define AU6601_INTERFACE_MODE_CTRL 0x74
93 #define AU6601_DLINK_MODE 0x80
94 #define AU6601_INTERRUPT_DELAY_TIME 0x40
95 #define AU6601_SIGNAL_REQ_CTRL 0x30
96 #define AU6601_MS_CARD_WP BIT(3)
97 #define AU6601_SD_CARD_WP BIT(0)
99 /* same register values are used for:
100 * - AU6601_OUTPUT_ENABLE
101 * - AU6601_POWER_CONTROL
103 #define AU6601_ACTIVE_CTRL 0x75
104 #define AU6601_XD_CARD BIT(4)
105 /* AU6601_MS_CARD_ACTIVE - will cativate MS card section? */
106 #define AU6601_MS_CARD BIT(3)
107 #define AU6601_SD_CARD BIT(0)
109 /* card slot state. It should automatically detect type of
112 #define AU6601_DETECT_STATUS 0x76
113 #define AU6601_DETECT_EN BIT(7)
114 #define AU6601_MS_DETECTED BIT(3)
115 #define AU6601_SD_DETECTED BIT(0)
116 #define AU6601_DETECT_STATUS_M 0xf
118 #define AU6601_REG_SW_RESET 0x79
119 #define AU6601_BUF_CTRL_RESET BIT(7)
120 #define AU6601_RESET_DATA BIT(3)
121 #define AU6601_RESET_CMD BIT(0)
123 #define AU6601_OUTPUT_ENABLE 0x7a
125 #define AU6601_PAD_DRIVE0 0x7b
126 #define AU6601_PAD_DRIVE1 0x7c
127 #define AU6601_PAD_DRIVE2 0x7d
129 #define AU6601_FUNCTION 0x7f
131 #define AU6601_CMD_XFER_CTRL 0x81
132 #define AU6601_CMD_17_BYTE_CRC 0xc0
133 #define AU6601_CMD_6_BYTE_WO_CRC 0x80
134 #define AU6601_CMD_6_BYTE_CRC 0x40
135 #define AU6601_CMD_START_XFER 0x20
136 #define AU6601_CMD_STOP_WAIT_RDY 0x10
137 #define AU6601_CMD_NO_RESP 0x00
139 #define AU6601_REG_BUS_CTRL 0x82
140 #define AU6601_BUS_WIDTH_4BIT 0x20
141 #define AU6601_BUS_WIDTH_8BIT 0x10
142 #define AU6601_BUS_WIDTH_1BIT 0x00
144 #define AU6601_DATA_XFER_CTRL 0x83
145 #define AU6601_DATA_WRITE BIT(7)
146 #define AU6601_DATA_DMA_MODE BIT(6)
147 #define AU6601_DATA_START_XFER BIT(0)
149 #define AU6601_DATA_PIN_STATE 0x84
150 #define AU6601_BUS_STAT_CMD BIT(15)
151 /* BIT(4) - BIT(7) are permanently 1.
152 * May be reserved or not attached DAT4-DAT7
154 #define AU6601_BUS_STAT_DAT3 BIT(3)
155 #define AU6601_BUS_STAT_DAT2 BIT(2)
156 #define AU6601_BUS_STAT_DAT1 BIT(1)
157 #define AU6601_BUS_STAT_DAT0 BIT(0)
158 #define AU6601_BUS_STAT_DAT_MASK 0xf
160 #define AU6601_OPT 0x85
161 #define AU6601_OPT_CMD_LINE_LEVEL 0x80
162 #define AU6601_OPT_NCRC_16_CLK BIT(4)
163 #define AU6601_OPT_CMD_NWT BIT(3)
164 #define AU6601_OPT_STOP_CLK BIT(2)
165 #define AU6601_OPT_DDR_MODE BIT(1)
166 #define AU6601_OPT_SD_18V BIT(0)
168 #define AU6601_CLK_DELAY 0x86
169 #define AU6601_CLK_DATA_POSITIVE_EDGE 0x80
170 #define AU6601_CLK_CMD_POSITIVE_EDGE 0x40
171 #define AU6601_CLK_POSITIVE_EDGE_ALL (AU6601_CLK_CMD_POSITIVE_EDGE \
172 | AU6601_CLK_DATA_POSITIVE_EDGE)
175 #define AU6601_REG_INT_STATUS 0x90
176 #define AU6601_REG_INT_ENABLE 0x94
177 #define AU6601_INT_DATA_END_BIT_ERR BIT(22)
178 #define AU6601_INT_DATA_CRC_ERR BIT(21)
179 #define AU6601_INT_DATA_TIMEOUT_ERR BIT(20)
180 #define AU6601_INT_CMD_INDEX_ERR BIT(19)
181 #define AU6601_INT_CMD_END_BIT_ERR BIT(18)
182 #define AU6601_INT_CMD_CRC_ERR BIT(17)
183 #define AU6601_INT_CMD_TIMEOUT_ERR BIT(16)
184 #define AU6601_INT_ERROR BIT(15)
185 #define AU6601_INT_OVER_CURRENT_ERR BIT(8)
186 #define AU6601_INT_CARD_INSERT BIT(7)
187 #define AU6601_INT_CARD_REMOVE BIT(6)
188 #define AU6601_INT_READ_BUF_RDY BIT(5)
189 #define AU6601_INT_WRITE_BUF_RDY BIT(4)
190 #define AU6601_INT_DMA_END BIT(3)
191 #define AU6601_INT_DATA_END BIT(1)
192 #define AU6601_INT_CMD_END BIT(0)
194 #define AU6601_INT_NORMAL_MASK 0x00007FFF
195 #define AU6601_INT_ERROR_MASK 0xFFFF8000
197 #define AU6601_INT_CMD_MASK (AU6601_INT_CMD_END | \
198 AU6601_INT_CMD_TIMEOUT_ERR | AU6601_INT_CMD_CRC_ERR | \
199 AU6601_INT_CMD_END_BIT_ERR | AU6601_INT_CMD_INDEX_ERR)
200 #define AU6601_INT_DATA_MASK (AU6601_INT_DATA_END | AU6601_INT_DMA_END | \
201 AU6601_INT_READ_BUF_RDY | AU6601_INT_WRITE_BUF_RDY | \
202 AU6601_INT_DATA_TIMEOUT_ERR | AU6601_INT_DATA_CRC_ERR | \
203 AU6601_INT_DATA_END_BIT_ERR)
204 #define AU6601_INT_ALL_MASK ((u32)-1)
206 /* MS_CARD mode registers */
208 #define AU6601_MS_STATUS 0xa0
210 #define AU6601_MS_BUS_MODE_CTRL 0xa1
211 #define AU6601_MS_BUS_8BIT_MODE 0x03
212 #define AU6601_MS_BUS_4BIT_MODE 0x01
213 #define AU6601_MS_BUS_1BIT_MODE 0x00
215 #define AU6601_MS_TPC_CMD 0xa2
216 #define AU6601_MS_TPC_READ_PAGE_DATA 0x02
217 #define AU6601_MS_TPC_READ_REG 0x04
218 #define AU6601_MS_TPC_GET_INT 0x07
219 #define AU6601_MS_TPC_WRITE_PAGE_DATA 0x0D
220 #define AU6601_MS_TPC_WRITE_REG 0x0B
221 #define AU6601_MS_TPC_SET_RW_REG_ADRS 0x08
222 #define AU6601_MS_TPC_SET_CMD 0x0E
223 #define AU6601_MS_TPC_EX_SET_CMD 0x09
224 #define AU6601_MS_TPC_READ_SHORT_DATA 0x03
225 #define AU6601_MS_TPC_WRITE_SHORT_DATA 0x0C
227 #define AU6601_MS_TRANSFER_MODE 0xa3
228 #define AU6601_MS_XFER_INT_TIMEOUT_CHK BIT(2)
229 #define AU6601_MS_XFER_DMA_ENABLE BIT(1)
230 #define AU6601_MS_XFER_START BIT(0)
232 #define AU6601_MS_DATA_PIN_STATE 0xa4
234 #define AU6601_MS_INT_STATUS 0xb0
235 #define AU6601_MS_INT_ENABLE 0xb4
236 #define AU6601_MS_INT_OVER_CURRENT_ERROR BIT(23)
237 #define AU6601_MS_INT_DATA_CRC_ERROR BIT(21)
238 #define AU6601_MS_INT_INT_TIMEOUT BIT(20)
239 #define AU6601_MS_INT_INT_RESP_ERROR BIT(19)
240 #define AU6601_MS_INT_CED_ERROR BIT(18)
241 #define AU6601_MS_INT_TPC_TIMEOUT BIT(16)
242 #define AU6601_MS_INT_ERROR BIT(15)
243 #define AU6601_MS_INT_CARD_INSERT BIT(7)
244 #define AU6601_MS_INT_CARD_REMOVE BIT(6)
245 #define AU6601_MS_INT_BUF_READ_RDY BIT(5)
246 #define AU6601_MS_INT_BUF_WRITE_RDY BIT(4)
247 #define AU6601_MS_INT_DMA_END BIT(3)
248 #define AU6601_MS_INT_TPC_END BIT(1)
250 #define AU6601_MS_INT_DATA_MASK 0x00000038
251 #define AU6601_MS_INT_TPC_MASK 0x003d8002
252 #define AU6601_MS_INT_TPC_ERROR 0x003d0000
254 #define ALCOR_PCIE_LINK_CTRL_OFFSET 0x10
255 #define ALCOR_PCIE_LINK_CAP_OFFSET 0x0c
256 #define ALCOR_CAP_START_OFFSET 0x34
258 struct alcor_dev_cfg {
262 struct alcor_pci_priv {
263 struct pci_dev *pdev;
264 struct pci_dev *parent_pdev;
266 void __iomem *iobase;
269 unsigned long id; /* idr id */
271 struct alcor_dev_cfg *cfg;
274 void alcor_write8(struct alcor_pci_priv *priv, u8 val, unsigned int addr);
275 void alcor_write16(struct alcor_pci_priv *priv, u16 val, unsigned int addr);
276 void alcor_write32(struct alcor_pci_priv *priv, u32 val, unsigned int addr);
277 void alcor_write32be(struct alcor_pci_priv *priv, u32 val, unsigned int addr);
278 u8 alcor_read8(struct alcor_pci_priv *priv, unsigned int addr);
279 u32 alcor_read32(struct alcor_pci_priv *priv, unsigned int addr);
280 u32 alcor_read32be(struct alcor_pci_priv *priv, unsigned int addr);