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d9b94f28 | 1 | /* |
6525d51f | 2 | * Copyright 2004, 2007, 2009-2010 Freescale Semiconductor, Inc. |
d9b94f28 JL |
3 | * |
4 | * (C) Copyright 2002 Scott McNutt <[email protected]> | |
5 | * | |
6 | * See file CREDITS for list of people who contributed to this | |
7 | * project. | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or | |
10 | * modify it under the terms of the GNU General Public License as | |
11 | * published by the Free Software Foundation; either version 2 of | |
12 | * the License, or (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
22 | * MA 02111-1307 USA | |
23 | */ | |
24 | ||
25 | #include <common.h> | |
26 | #include <pci.h> | |
27 | #include <asm/processor.h> | |
e31d2c1e | 28 | #include <asm/mmu.h> |
d9b94f28 | 29 | #include <asm/immap_85xx.h> |
c8514622 | 30 | #include <asm/fsl_pci.h> |
e31d2c1e | 31 | #include <asm/fsl_ddr_sdram.h> |
5d27e02c | 32 | #include <asm/fsl_serdes.h> |
a30a549a | 33 | #include <spd_sdram.h> |
09f3e09e | 34 | #include <miiphy.h> |
b90d2549 KG |
35 | #include <libfdt.h> |
36 | #include <fdt_support.h> | |
d9b94f28 JL |
37 | |
38 | #include "../common/cadmus.h" | |
39 | #include "../common/eeprom.h" | |
bf1dfffd | 40 | #include "../common/via.h" |
d9b94f28 | 41 | |
f2cff6b1 ES |
42 | DECLARE_GLOBAL_DATA_PTR; |
43 | ||
d9b94f28 | 44 | void local_bus_init(void); |
d9b94f28 | 45 | |
d9b94f28 JL |
46 | int checkboard (void) |
47 | { | |
6d0f6bcf JCPV |
48 | volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); |
49 | volatile ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR); | |
d9b94f28 JL |
50 | |
51 | /* PCI slot in USER bits CSR[6:7] by convention. */ | |
52 | uint pci_slot = get_pci_slot (); | |
53 | ||
d9b94f28 JL |
54 | uint cpu_board_rev = get_cpu_board_revision (); |
55 | ||
56 | printf ("Board: CDS Version 0x%02x, PCI Slot %d\n", | |
57 | get_board_version (), pci_slot); | |
58 | ||
59 | printf ("CPU Board Revision %d.%d (0x%04x)\n", | |
60 | MPC85XX_CPU_BOARD_MAJOR (cpu_board_rev), | |
61 | MPC85XX_CPU_BOARD_MINOR (cpu_board_rev), cpu_board_rev); | |
d9b94f28 JL |
62 | /* |
63 | * Initialize local bus. | |
64 | */ | |
65 | local_bus_init (); | |
66 | ||
d9b94f28 JL |
67 | /* |
68 | * Hack TSEC 3 and 4 IO voltages. | |
69 | */ | |
70 | gur->tsec34ioovcr = 0xe7e0; /* 1110 0111 1110 0xxx */ | |
71 | ||
f2cff6b1 ES |
72 | ecm->eedr = 0xffffffff; /* clear ecm errors */ |
73 | ecm->eeer = 0xffffffff; /* enable ecm errors */ | |
d9b94f28 JL |
74 | return 0; |
75 | } | |
76 | ||
d9b94f28 JL |
77 | /* |
78 | * Initialize Local Bus | |
79 | */ | |
80 | void | |
81 | local_bus_init(void) | |
82 | { | |
6d0f6bcf | 83 | volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); |
f51cdaf1 | 84 | volatile fsl_lbc_t *lbc = LBC_BASE_ADDR; |
d9b94f28 JL |
85 | |
86 | uint clkdiv; | |
87 | uint lbc_hz; | |
88 | sys_info_t sysinfo; | |
89 | ||
90 | get_sys_info(&sysinfo); | |
a5d212a2 | 91 | clkdiv = (lbc->lcrr & LCRR_CLKDIV) * 2; |
d9b94f28 JL |
92 | lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv; |
93 | ||
94 | gur->lbiuiplldcr1 = 0x00078080; | |
95 | if (clkdiv == 16) { | |
96 | gur->lbiuiplldcr0 = 0x7c0f1bf0; | |
97 | } else if (clkdiv == 8) { | |
98 | gur->lbiuiplldcr0 = 0x6c0f1bf0; | |
99 | } else if (clkdiv == 4) { | |
100 | gur->lbiuiplldcr0 = 0x5c0f1bf0; | |
101 | } | |
102 | ||
103 | lbc->lcrr |= 0x00030000; | |
104 | ||
105 | asm("sync;isync;msync"); | |
f2cff6b1 ES |
106 | |
107 | lbc->ltesr = 0xffffffff; /* Clear LBC error interrupts */ | |
108 | lbc->lteir = 0xffffffff; /* Enable LBC error interrupts */ | |
d9b94f28 JL |
109 | } |
110 | ||
111 | /* | |
112 | * Initialize SDRAM memory on the Local Bus. | |
113 | */ | |
114 | void | |
115 | sdram_init(void) | |
116 | { | |
6d0f6bcf | 117 | #if defined(CONFIG_SYS_OR2_PRELIM) && defined(CONFIG_SYS_BR2_PRELIM) |
d9b94f28 JL |
118 | |
119 | uint idx; | |
f51cdaf1 | 120 | volatile fsl_lbc_t *lbc = LBC_BASE_ADDR; |
6d0f6bcf | 121 | uint *sdram_addr = (uint *)CONFIG_SYS_LBC_SDRAM_BASE; |
d9b94f28 JL |
122 | uint cpu_board_rev; |
123 | uint lsdmr_common; | |
124 | ||
125 | puts(" SDRAM: "); | |
126 | ||
6d0f6bcf | 127 | print_size (CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024, "\n"); |
d9b94f28 JL |
128 | |
129 | /* | |
130 | * Setup SDRAM Base and Option Registers | |
131 | */ | |
f51cdaf1 BB |
132 | set_lbc_or(2, CONFIG_SYS_OR2_PRELIM); |
133 | set_lbc_br(2, CONFIG_SYS_BR2_PRELIM); | |
6d0f6bcf | 134 | lbc->lbcr = CONFIG_SYS_LBC_LBCR; |
d9b94f28 JL |
135 | asm("msync"); |
136 | ||
6d0f6bcf JCPV |
137 | lbc->lsrt = CONFIG_SYS_LBC_LSRT; |
138 | lbc->mrtpr = CONFIG_SYS_LBC_MRTPR; | |
d9b94f28 JL |
139 | asm("msync"); |
140 | ||
141 | /* | |
142 | * MPC8548 uses "new" 15-16 style addressing. | |
143 | */ | |
144 | cpu_board_rev = get_cpu_board_revision(); | |
6d0f6bcf | 145 | lsdmr_common = CONFIG_SYS_LBC_LSDMR_COMMON; |
b0fe93ed | 146 | lsdmr_common |= LSDMR_BSMA1516; |
d9b94f28 JL |
147 | |
148 | /* | |
149 | * Issue PRECHARGE ALL command. | |
150 | */ | |
b0fe93ed | 151 | lbc->lsdmr = lsdmr_common | LSDMR_OP_PCHALL; |
d9b94f28 JL |
152 | asm("sync;msync"); |
153 | *sdram_addr = 0xff; | |
154 | ppcDcbf((unsigned long) sdram_addr); | |
155 | udelay(100); | |
156 | ||
157 | /* | |
158 | * Issue 8 AUTO REFRESH commands. | |
159 | */ | |
160 | for (idx = 0; idx < 8; idx++) { | |
b0fe93ed | 161 | lbc->lsdmr = lsdmr_common | LSDMR_OP_ARFRSH; |
d9b94f28 JL |
162 | asm("sync;msync"); |
163 | *sdram_addr = 0xff; | |
164 | ppcDcbf((unsigned long) sdram_addr); | |
165 | udelay(100); | |
166 | } | |
167 | ||
168 | /* | |
169 | * Issue 8 MODE-set command. | |
170 | */ | |
b0fe93ed | 171 | lbc->lsdmr = lsdmr_common | LSDMR_OP_MRW; |
d9b94f28 JL |
172 | asm("sync;msync"); |
173 | *sdram_addr = 0xff; | |
174 | ppcDcbf((unsigned long) sdram_addr); | |
175 | udelay(100); | |
176 | ||
177 | /* | |
178 | * Issue NORMAL OP command. | |
179 | */ | |
b0fe93ed | 180 | lbc->lsdmr = lsdmr_common | LSDMR_OP_NORMAL; |
d9b94f28 JL |
181 | asm("sync;msync"); |
182 | *sdram_addr = 0xff; | |
183 | ppcDcbf((unsigned long) sdram_addr); | |
184 | udelay(200); /* Overkill. Must wait > 200 bus cycles */ | |
185 | ||
186 | #endif /* enable SDRAM init */ | |
187 | } | |
188 | ||
f2cff6b1 | 189 | #if defined(CONFIG_PCI) || defined(CONFIG_PCI1) |
bf1dfffd MM |
190 | /* For some reason the Tundra PCI bridge shows up on itself as a |
191 | * different device. Work around that by refusing to configure it. | |
d9b94f28 | 192 | */ |
bf1dfffd | 193 | void dummy_func(struct pci_controller* hose, pci_dev_t dev, struct pci_config_table *tab) { } |
d9b94f28 | 194 | |
d9b94f28 | 195 | static struct pci_config_table pci_mpc85xxcds_config_table[] = { |
bf1dfffd | 196 | {0x10e3, 0x0513, PCI_ANY_ID, 1, 3, PCI_ANY_ID, dummy_func, {0,0,0}}, |
7f3f2bd2 RV |
197 | {0x1106, 0x0686, PCI_ANY_ID, 1, VIA_ID, 0, mpc85xx_config_via, {0,0,0}}, |
198 | {0x1106, 0x0571, PCI_ANY_ID, 1, VIA_ID, 1, | |
ffa621a0 | 199 | mpc85xx_config_via_usbide, {0,0,0}}, |
7f3f2bd2 RV |
200 | {0x1105, 0x3038, PCI_ANY_ID, 1, VIA_ID, 2, |
201 | mpc85xx_config_via_usb, {0,0,0}}, | |
202 | {0x1106, 0x3038, PCI_ANY_ID, 1, VIA_ID, 3, | |
203 | mpc85xx_config_via_usb2, {0,0,0}}, | |
204 | {0x1106, 0x3058, PCI_ANY_ID, 1, VIA_ID, 5, | |
ffa621a0 | 205 | mpc85xx_config_via_power, {0,0,0}}, |
7f3f2bd2 RV |
206 | {0x1106, 0x3068, PCI_ANY_ID, 1, VIA_ID, 6, |
207 | mpc85xx_config_via_ac97, {0,0,0}}, | |
ffa621a0 | 208 | {}, |
d9b94f28 | 209 | }; |
d9b94f28 | 210 | |
f2cff6b1 ES |
211 | static struct pci_controller pci1_hose = { |
212 | config_table: pci_mpc85xxcds_config_table}; | |
d9b94f28 JL |
213 | #endif /* CONFIG_PCI */ |
214 | ||
f2cff6b1 ES |
215 | #ifdef CONFIG_PCI2 |
216 | static struct pci_controller pci2_hose; | |
217 | #endif /* CONFIG_PCI2 */ | |
218 | ||
219 | #ifdef CONFIG_PCIE1 | |
220 | static struct pci_controller pcie1_hose; | |
221 | #endif /* CONFIG_PCIE1 */ | |
222 | ||
7b626880 | 223 | void pci_init_board(void) |
d9b94f28 | 224 | { |
6d0f6bcf | 225 | volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); |
7b626880 KG |
226 | struct fsl_pci_info pci_info[4]; |
227 | u32 devdisr, pordevsr, io_sel; | |
228 | u32 porpllsr, pci_agent, pci_speed, pci_32, pci_arb, pci_clk_sel; | |
229 | int first_free_busno = 0; | |
230 | int num = 0; | |
f2cff6b1 | 231 | |
7b626880 | 232 | int pcie_ep, pcie_configured; |
f2cff6b1 | 233 | |
7b626880 KG |
234 | devdisr = in_be32(&gur->devdisr); |
235 | pordevsr = in_be32(&gur->pordevsr); | |
236 | porpllsr = in_be32(&gur->porpllsr); | |
237 | io_sel = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19; | |
f2cff6b1 | 238 | |
7b626880 | 239 | debug (" pci_init_board: devdisr=%x, io_sel=%x\n", devdisr, io_sel); |
f2cff6b1 | 240 | |
7b626880 KG |
241 | #ifdef CONFIG_PCI1 |
242 | pci_speed = get_clock_freq (); /* PCI PSPEED in [4:5] */ | |
243 | pci_32 = pordevsr & MPC85xx_PORDEVSR_PCI1_PCI32; /* PORDEVSR[15] */ | |
244 | pci_arb = pordevsr & MPC85xx_PORDEVSR_PCI1_ARB; | |
245 | pci_clk_sel = porpllsr & MPC85xx_PORDEVSR_PCI1_SPD; | |
246 | ||
247 | if (!(devdisr & MPC85xx_DEVDISR_PCI1)) { | |
248 | SET_STD_PCI_INFO(pci_info[num], 1); | |
249 | pci_agent = fsl_setup_hose(&pci1_hose, pci_info[num].regs); | |
8ca78f2c | 250 | printf("PCI: %d bit, %s MHz, %s, %s, %s (base address %lx)\n", |
f2cff6b1 ES |
251 | (pci_32) ? 32 : 64, |
252 | (pci_speed == 33333000) ? "33" : | |
253 | (pci_speed == 66666000) ? "66" : "unknown", | |
254 | pci_clk_sel ? "sync" : "async", | |
255 | pci_agent ? "agent" : "host", | |
7b626880 KG |
256 | pci_arb ? "arbiter" : "external-arbiter", |
257 | pci_info[num].regs); | |
258 | ||
259 | first_free_busno = fsl_pci_init_port(&pci_info[num++], | |
260 | &pci1_hose, first_free_busno); | |
261 | ||
f2cff6b1 | 262 | #ifdef CONFIG_PCIX_CHECK |
7b626880 | 263 | if (!(pordevsr & MPC85xx_PORDEVSR_PCI1)) { |
f2cff6b1 ES |
264 | /* PCI-X init */ |
265 | if (CONFIG_SYS_CLK_FREQ < 66000000) | |
266 | printf("PCI-X will only work at 66 MHz\n"); | |
267 | ||
268 | reg16 = PCI_X_CMD_MAX_SPLIT | PCI_X_CMD_MAX_READ | |
269 | | PCI_X_CMD_ERO | PCI_X_CMD_DPERR_E; | |
270 | pci_hose_write_config_word(hose, bus, PCIX_COMMAND, reg16); | |
271 | } | |
d9b94f28 | 272 | #endif |
f2cff6b1 | 273 | } else { |
8ca78f2c | 274 | printf("PCI: disabled\n"); |
f2cff6b1 | 275 | } |
7b626880 KG |
276 | |
277 | puts("\n"); | |
f2cff6b1 | 278 | #else |
7b626880 | 279 | setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI1); /* disable */ |
f2cff6b1 ES |
280 | #endif |
281 | ||
282 | #ifdef CONFIG_PCI2 | |
283 | { | |
7b626880 | 284 | uint pci2_clk_sel = porpllsr & 0x4000; /* PORPLLSR[17] */ |
f2cff6b1 ES |
285 | uint pci_dual = get_pci_dual (); /* PCI DUAL in CM_PCI[3] */ |
286 | if (pci_dual) { | |
8ca78f2c | 287 | printf("PCI2: 32 bit, 66 MHz, %s\n", |
f2cff6b1 ES |
288 | pci2_clk_sel ? "sync" : "async"); |
289 | } else { | |
8ca78f2c | 290 | printf("PCI2: disabled\n"); |
f2cff6b1 ES |
291 | } |
292 | } | |
293 | #else | |
7b626880 | 294 | setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI2); /* disable */ |
f2cff6b1 ES |
295 | #endif /* CONFIG_PCI2 */ |
296 | ||
297 | #ifdef CONFIG_PCIE1 | |
5d27e02c | 298 | pcie_configured = is_serdes_configured(PCIE1); |
f2cff6b1 | 299 | |
7b626880 KG |
300 | if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){ |
301 | SET_STD_PCIE_INFO(pci_info[num], 1); | |
302 | pcie_ep = fsl_setup_hose(&pcie1_hose, pci_info[num].regs); | |
8ca78f2c PT |
303 | printf("PCIE1: connected to Slot as %s (base addr %lx)\n", |
304 | pcie_ep ? "Endpoint" : "Root Complex", | |
305 | pci_info[num].regs); | |
f2cff6b1 | 306 | |
7b626880 KG |
307 | first_free_busno = fsl_pci_init_port(&pci_info[num++], |
308 | &pcie1_hose, first_free_busno); | |
f2cff6b1 | 309 | } else { |
8ca78f2c | 310 | printf("PCIE1: disabled\n"); |
f2cff6b1 | 311 | } |
7b626880 KG |
312 | |
313 | puts("\n"); | |
f2cff6b1 | 314 | #else |
7b626880 | 315 | setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCIE); /* disable */ |
f2cff6b1 | 316 | #endif |
d9b94f28 | 317 | } |
09f3e09e AF |
318 | |
319 | int last_stage_init(void) | |
320 | { | |
f5012827 | 321 | unsigned short temp; |
09f3e09e AF |
322 | |
323 | /* Change the resistors for the PHY */ | |
324 | /* This is needed to get the RGMII working for the 1.3+ | |
325 | * CDS cards */ | |
326 | if (get_board_version() == 0x13) { | |
255a3577 | 327 | miiphy_write(CONFIG_TSEC1_NAME, |
09f3e09e AF |
328 | TSEC1_PHY_ADDR, 29, 18); |
329 | ||
255a3577 | 330 | miiphy_read(CONFIG_TSEC1_NAME, |
09f3e09e AF |
331 | TSEC1_PHY_ADDR, 30, &temp); |
332 | ||
333 | temp = (temp & 0xf03f); | |
334 | temp |= 2 << 9; /* 36 ohm */ | |
335 | temp |= 2 << 6; /* 39 ohm */ | |
336 | ||
255a3577 | 337 | miiphy_write(CONFIG_TSEC1_NAME, |
09f3e09e AF |
338 | TSEC1_PHY_ADDR, 30, temp); |
339 | ||
255a3577 | 340 | miiphy_write(CONFIG_TSEC1_NAME, |
09f3e09e AF |
341 | TSEC1_PHY_ADDR, 29, 3); |
342 | ||
255a3577 | 343 | miiphy_write(CONFIG_TSEC1_NAME, |
09f3e09e AF |
344 | TSEC1_PHY_ADDR, 30, 0x8000); |
345 | } | |
346 | ||
347 | return 0; | |
348 | } | |
f2cff6b1 ES |
349 | |
350 | ||
b90d2549 | 351 | #if defined(CONFIG_OF_BOARD_SETUP) |
2dba0dea KG |
352 | void ft_pci_setup(void *blob, bd_t *bd) |
353 | { | |
6525d51f | 354 | FT_FSL_PCI_SETUP; |
f2cff6b1 ES |
355 | } |
356 | #endif |