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42d1f039 | 1 | /* |
1ced1216 | 2 | * Copyright 2004,2007,2008 Freescale Semiconductor, Inc. |
42d1f039 WD |
3 | * (C) Copyright 2002, 2003 Motorola Inc. |
4 | * Xianghua Xiao (X.Xiao@motorola.com) | |
5 | * | |
6 | * (C) Copyright 2000 | |
7 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
8 | * | |
9 | * See file CREDITS for list of people who contributed to this | |
10 | * project. | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU General Public License as | |
14 | * published by the Free Software Foundation; either version 2 of | |
15 | * the License, or (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
25 | * MA 02111-1307 USA | |
26 | */ | |
27 | ||
75b9d4ae | 28 | #include <config.h> |
42d1f039 WD |
29 | #include <common.h> |
30 | #include <watchdog.h> | |
31 | #include <command.h> | |
75b9d4ae | 32 | #include <tsec.h> |
42d1f039 | 33 | #include <asm/cache.h> |
740280e6 | 34 | #include <asm/io.h> |
42d1f039 | 35 | |
591933ca JY |
36 | DECLARE_GLOBAL_DATA_PTR; |
37 | ||
4dbdb768 KG |
38 | struct cpu_type cpu_type_list [] = { |
39 | CPU_TYPE_ENTRY(8533, 8533), | |
40 | CPU_TYPE_ENTRY(8533, 8533_E), | |
ef50d6c0 KG |
41 | CPU_TYPE_ENTRY(8536, 8536), |
42 | CPU_TYPE_ENTRY(8536, 8536_E), | |
4dbdb768 KG |
43 | CPU_TYPE_ENTRY(8540, 8540), |
44 | CPU_TYPE_ENTRY(8541, 8541), | |
45 | CPU_TYPE_ENTRY(8541, 8541_E), | |
46 | CPU_TYPE_ENTRY(8543, 8543), | |
47 | CPU_TYPE_ENTRY(8543, 8543_E), | |
48 | CPU_TYPE_ENTRY(8544, 8544), | |
49 | CPU_TYPE_ENTRY(8544, 8544_E), | |
50 | CPU_TYPE_ENTRY(8545, 8545), | |
51 | CPU_TYPE_ENTRY(8545, 8545_E), | |
52 | CPU_TYPE_ENTRY(8547, 8547_E), | |
53 | CPU_TYPE_ENTRY(8548, 8548), | |
54 | CPU_TYPE_ENTRY(8548, 8548_E), | |
55 | CPU_TYPE_ENTRY(8555, 8555), | |
56 | CPU_TYPE_ENTRY(8555, 8555_E), | |
57 | CPU_TYPE_ENTRY(8560, 8560), | |
58 | CPU_TYPE_ENTRY(8567, 8567), | |
59 | CPU_TYPE_ENTRY(8567, 8567_E), | |
60 | CPU_TYPE_ENTRY(8568, 8568), | |
61 | CPU_TYPE_ENTRY(8568, 8568_E), | |
62 | CPU_TYPE_ENTRY(8572, 8572), | |
63 | CPU_TYPE_ENTRY(8572, 8572_E), | |
1ced1216 AF |
64 | }; |
65 | ||
96026d42 | 66 | struct cpu_type *identify_cpu(u32 ver) |
4dbdb768 KG |
67 | { |
68 | int i; | |
69 | for (i = 0; i < ARRAY_SIZE(cpu_type_list); i++) | |
70 | if (cpu_type_list[i].soc_ver == ver) | |
71 | return &cpu_type_list[i]; | |
1ced1216 | 72 | |
4dbdb768 KG |
73 | return NULL; |
74 | } | |
1ced1216 | 75 | |
42d1f039 WD |
76 | int checkcpu (void) |
77 | { | |
97d80fc3 WD |
78 | sys_info_t sysinfo; |
79 | uint lcrr; /* local bus clock ratio register */ | |
80 | uint clkdiv; /* clock divider portion of lcrr */ | |
81 | uint pvr, svr; | |
d9b94f28 | 82 | uint fam; |
97d80fc3 WD |
83 | uint ver; |
84 | uint major, minor; | |
4dbdb768 | 85 | struct cpu_type *cpu; |
ee1e35be | 86 | #ifdef CONFIG_DDR_CLK_FREQ |
d4357932 | 87 | volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR); |
ee1e35be KG |
88 | u32 ddr_ratio = ((gur->porpllsr) & 0x00003e00) >> 9; |
89 | #else | |
90 | u32 ddr_ratio = 0; | |
91 | #endif | |
97d80fc3 | 92 | |
97d80fc3 | 93 | svr = get_svr(); |
1ced1216 | 94 | ver = SVR_SOC_VER(svr); |
97d80fc3 | 95 | major = SVR_MAJ(svr); |
ef50d6c0 KG |
96 | #ifdef CONFIG_MPC8536 |
97 | major &= 0x7; /* the msb of this nibble is a mfg code */ | |
98 | #endif | |
97d80fc3 | 99 | minor = SVR_MIN(svr); |
42d1f039 | 100 | |
6c9e789e | 101 | puts("CPU: "); |
1ced1216 | 102 | |
4dbdb768 KG |
103 | cpu = identify_cpu(ver); |
104 | if (cpu) { | |
105 | puts(cpu->name); | |
1ced1216 | 106 | |
06b4186c | 107 | if (IS_E_PROCESSOR(svr)) |
4dbdb768 KG |
108 | puts("E"); |
109 | } else { | |
97d80fc3 | 110 | puts("Unknown"); |
4dbdb768 | 111 | } |
1ced1216 | 112 | |
97d80fc3 WD |
113 | printf(", Version: %d.%d, (0x%08x)\n", major, minor, svr); |
114 | ||
6c9e789e | 115 | pvr = get_pvr(); |
d9b94f28 | 116 | fam = PVR_FAM(pvr); |
6c9e789e WD |
117 | ver = PVR_VER(pvr); |
118 | major = PVR_MAJ(pvr); | |
119 | minor = PVR_MIN(pvr); | |
120 | ||
121 | printf("Core: "); | |
d9b94f28 JL |
122 | switch (fam) { |
123 | case PVR_FAM(PVR_85xx): | |
6c9e789e WD |
124 | puts("E500"); |
125 | break; | |
126 | default: | |
127 | puts("Unknown"); | |
128 | break; | |
129 | } | |
130 | printf(", Version: %d.%d, (0x%08x)\n", major, minor, pvr); | |
131 | ||
97d80fc3 WD |
132 | get_sys_info(&sysinfo); |
133 | ||
d9b94f28 | 134 | puts("Clock Configuration:\n"); |
022f1216 KG |
135 | printf(" CPU:%4lu MHz, ", DIV_ROUND_UP(sysinfo.freqProcessor,1000000)); |
136 | printf("CCB:%4lu MHz,\n", DIV_ROUND_UP(sysinfo.freqSystemBus,1000000)); | |
ee1e35be | 137 | |
d4357932 KG |
138 | switch (ddr_ratio) { |
139 | case 0x0: | |
e9ea6799 | 140 | printf(" DDR:%4lu MHz (%lu MT/s data rate), ", |
022f1216 | 141 | DIV_ROUND_UP(sysinfo.freqDDRBus,2000000), DIV_ROUND_UP(sysinfo.freqDDRBus,1000000)); |
d4357932 KG |
142 | break; |
143 | case 0x7: | |
e9ea6799 | 144 | printf(" DDR:%4lu MHz (%lu MT/s data rate) (Synchronous), ", |
022f1216 | 145 | DIV_ROUND_UP(sysinfo.freqDDRBus, 2000000), DIV_ROUND_UP(sysinfo.freqDDRBus, 1000000)); |
d4357932 KG |
146 | break; |
147 | default: | |
e9ea6799 | 148 | printf(" DDR:%4lu MHz (%lu MT/s data rate) (Asynchronous), ", |
022f1216 | 149 | DIV_ROUND_UP(sysinfo.freqDDRBus, 2000000), DIV_ROUND_UP(sysinfo.freqDDRBus,1000000)); |
d4357932 KG |
150 | break; |
151 | } | |
97d80fc3 WD |
152 | |
153 | #if defined(CFG_LBC_LCRR) | |
154 | lcrr = CFG_LBC_LCRR; | |
155 | #else | |
156 | { | |
04db4008 | 157 | volatile ccsr_lbc_t *lbc = (void *)(CFG_MPC85xx_LBC_ADDR); |
97d80fc3 WD |
158 | |
159 | lcrr = lbc->lcrr; | |
160 | } | |
161 | #endif | |
162 | clkdiv = lcrr & 0x0f; | |
163 | if (clkdiv == 2 || clkdiv == 4 || clkdiv == 8) { | |
ef50d6c0 KG |
164 | #if defined(CONFIG_MPC8548) || defined(CONFIG_MPC8544) || \ |
165 | defined(CONFIG_MPC8572) || defined(CONFIG_MPC8536) | |
d9b94f28 JL |
166 | /* |
167 | * Yes, the entire PQ38 family use the same | |
168 | * bit-representation for twice the clock divider values. | |
169 | */ | |
170 | clkdiv *= 2; | |
171 | #endif | |
97d80fc3 | 172 | printf("LBC:%4lu MHz\n", |
022f1216 | 173 | DIV_ROUND_UP(sysinfo.freqSystemBus, 1000000) / clkdiv); |
97d80fc3 | 174 | } else { |
6c9e789e | 175 | printf("LBC: unknown (lcrr: 0x%08x)\n", lcrr); |
97d80fc3 | 176 | } |
42d1f039 | 177 | |
1ced1216 | 178 | #ifdef CONFIG_CPM2 |
6beecfbb | 179 | printf("CPM: %lu Mhz\n", sysinfo.freqSystemBus / 1000000); |
1ced1216 | 180 | #endif |
97d80fc3 | 181 | |
6c9e789e | 182 | puts("L1: D-cache 32 kB enabled\n I-cache 32 kB enabled\n"); |
42d1f039 WD |
183 | |
184 | return 0; | |
185 | } | |
186 | ||
187 | ||
188 | /* ------------------------------------------------------------------------- */ | |
189 | ||
190 | int do_reset (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[]) | |
191 | { | |
96629cba ZR |
192 | uint pvr; |
193 | uint ver; | |
793670c3 SP |
194 | unsigned long val, msr; |
195 | ||
96629cba ZR |
196 | pvr = get_pvr(); |
197 | ver = PVR_VER(pvr); | |
793670c3 | 198 | |
96629cba ZR |
199 | if (ver & 1){ |
200 | /* e500 v2 core has reset control register */ | |
201 | volatile unsigned int * rstcr; | |
202 | rstcr = (volatile unsigned int *)(CFG_IMMR + 0xE00B0); | |
2f15278c | 203 | *rstcr = 0x2; /* HRESET_REQ */ |
793670c3 SP |
204 | udelay(100); |
205 | } | |
206 | ||
42d1f039 | 207 | /* |
793670c3 | 208 | * Fallthrough if the code above failed |
42d1f039 WD |
209 | * Initiate hard reset in debug control register DBCR0 |
210 | * Make sure MSR[DE] = 1 | |
211 | */ | |
df90968b | 212 | |
793670c3 SP |
213 | msr = mfmsr (); |
214 | msr |= MSR_DE; | |
215 | mtmsr (msr); | |
216 | ||
217 | val = mfspr(DBCR0); | |
218 | val |= 0x70000000; | |
219 | mtspr(DBCR0,val); | |
df90968b | 220 | |
42d1f039 WD |
221 | return 1; |
222 | } | |
223 | ||
224 | ||
225 | /* | |
226 | * Get timebase clock frequency | |
227 | */ | |
228 | unsigned long get_tbclk (void) | |
229 | { | |
591933ca | 230 | return (gd->bus_clk + 4UL)/8UL; |
42d1f039 WD |
231 | } |
232 | ||
233 | ||
234 | #if defined(CONFIG_WATCHDOG) | |
235 | void | |
236 | watchdog_reset(void) | |
237 | { | |
238 | int re_enable = disable_interrupts(); | |
239 | reset_85xx_watchdog(); | |
240 | if (re_enable) enable_interrupts(); | |
241 | } | |
242 | ||
243 | void | |
244 | reset_85xx_watchdog(void) | |
245 | { | |
246 | /* | |
247 | * Clear TSR(WIS) bit by writing 1 | |
248 | */ | |
249 | unsigned long val; | |
03b81b48 AF |
250 | val = mfspr(SPRN_TSR); |
251 | val |= TSR_WIS; | |
252 | mtspr(SPRN_TSR, val); | |
42d1f039 WD |
253 | } |
254 | #endif /* CONFIG_WATCHDOG */ | |
255 | ||
256 | #if defined(CONFIG_DDR_ECC) | |
42d1f039 | 257 | void dma_init(void) { |
04db4008 | 258 | volatile ccsr_dma_t *dma = (void *)(CFG_MPC85xx_DMA_ADDR); |
42d1f039 WD |
259 | |
260 | dma->satr0 = 0x02c40000; | |
261 | dma->datr0 = 0x02c40000; | |
03b81b48 | 262 | dma->sr0 = 0xfffffff; /* clear any errors */ |
42d1f039 WD |
263 | asm("sync; isync; msync"); |
264 | return; | |
265 | } | |
266 | ||
267 | uint dma_check(void) { | |
04db4008 | 268 | volatile ccsr_dma_t *dma = (void *)(CFG_MPC85xx_DMA_ADDR); |
42d1f039 WD |
269 | volatile uint status = dma->sr0; |
270 | ||
271 | /* While the channel is busy, spin */ | |
272 | while((status & 4) == 4) { | |
273 | status = dma->sr0; | |
274 | } | |
275 | ||
03b81b48 AF |
276 | /* clear MR0[CS] channel start bit */ |
277 | dma->mr0 &= 0x00000001; | |
278 | asm("sync;isync;msync"); | |
279 | ||
42d1f039 WD |
280 | if (status != 0) { |
281 | printf ("DMA Error: status = %x\n", status); | |
282 | } | |
283 | return status; | |
284 | } | |
285 | ||
286 | int dma_xfer(void *dest, uint count, void *src) { | |
04db4008 | 287 | volatile ccsr_dma_t *dma = (void *)(CFG_MPC85xx_DMA_ADDR); |
42d1f039 WD |
288 | |
289 | dma->dar0 = (uint) dest; | |
290 | dma->sar0 = (uint) src; | |
291 | dma->bcr0 = count; | |
292 | dma->mr0 = 0xf000004; | |
293 | asm("sync;isync;msync"); | |
294 | dma->mr0 = 0xf000005; | |
295 | asm("sync;isync;msync"); | |
296 | return dma_check(); | |
297 | } | |
298 | #endif | |
75b9d4ae | 299 | |
740280e6 SP |
300 | /* |
301 | * Configures a UPM. Currently, the loop fields in MxMR (RLF, WLF and TLF) | |
302 | * are hardcoded as "1"."size" is the number or entries, not a sizeof. | |
303 | */ | |
304 | void upmconfig (uint upm, uint * table, uint size) | |
305 | { | |
306 | int i, mdr, mad, old_mad = 0; | |
307 | volatile u32 *mxmr; | |
308 | volatile ccsr_lbc_t *lbc = (void *)(CFG_MPC85xx_LBC_ADDR); | |
309 | int loopval = 0x00004440; | |
310 | volatile u32 *brp,*orp; | |
311 | volatile u8* dummy = NULL; | |
312 | int upmmask; | |
313 | ||
314 | switch (upm) { | |
315 | case UPMA: | |
316 | mxmr = &lbc->mamr; | |
317 | upmmask = BR_MS_UPMA; | |
318 | break; | |
319 | case UPMB: | |
320 | mxmr = &lbc->mbmr; | |
321 | upmmask = BR_MS_UPMB; | |
322 | break; | |
323 | case UPMC: | |
324 | mxmr = &lbc->mcmr; | |
325 | upmmask = BR_MS_UPMC; | |
326 | break; | |
327 | default: | |
328 | printf("%s: Bad UPM index %d to configure\n", __FUNCTION__, upm); | |
329 | hang(); | |
330 | } | |
331 | ||
332 | /* Find the address for the dummy write transaction */ | |
333 | for (brp = &lbc->br0, orp = &lbc->or0, i = 0; i < 8; | |
334 | i++, brp += 2, orp += 2) { | |
e093a247 | 335 | |
740280e6 SP |
336 | /* Look for a valid BR with selected UPM */ |
337 | if ((in_be32(brp) & (BR_V | upmmask)) == (BR_V | upmmask)) { | |
338 | dummy = (volatile u8*)(in_be32(brp) >> BR_BA_SHIFT); | |
339 | break; | |
340 | } | |
341 | } | |
342 | ||
343 | if (i == 8) { | |
344 | printf("Error: %s() could not find matching BR\n", __FUNCTION__); | |
345 | hang(); | |
346 | } | |
347 | ||
348 | for (i = 0; i < size; i++) { | |
349 | /* 1 */ | |
350 | out_be32(mxmr, loopval | 0x10000000 | i); /* OP_WRITE */ | |
351 | /* 2 */ | |
352 | out_be32(&lbc->mdr, table[i]); | |
353 | /* 3 */ | |
354 | mdr = in_be32(&lbc->mdr); | |
355 | /* 4 */ | |
356 | *(volatile u8 *)dummy = 0; | |
357 | /* 5 */ | |
358 | do { | |
359 | mad = in_be32(mxmr) & 0x3f; | |
360 | } while (mad <= old_mad && !(!mad && i == (size-1))); | |
361 | old_mad = mad; | |
362 | } | |
363 | out_be32(mxmr, loopval); /* OP_NORMAL */ | |
364 | } | |
dd35479a | 365 | |
dd35479a | 366 | |
75b9d4ae AF |
367 | /* |
368 | * Initializes on-chip ethernet controllers. | |
369 | * to override, implement board_eth_init() | |
370 | */ | |
dd35479a BW |
371 | int cpu_eth_init(bd_t *bis) |
372 | { | |
75b9d4ae AF |
373 | #if defined(CONFIG_TSEC_ENET) || defined(CONFIG_MPC85xx_FEC) |
374 | tsec_standard_init(bis); | |
dd35479a | 375 | #endif |
75b9d4ae | 376 | |
dd35479a BW |
377 | return 0; |
378 | } |