2 * Copyright 2004,2007,2008 Freescale Semiconductor, Inc.
3 * (C) Copyright 2002, 2003 Motorola Inc.
4 * Xianghua Xiao (X.Xiao@motorola.com)
7 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
9 * See file CREDITS for list of people who contributed to this
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.
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.
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,
31 #include <asm/cache.h>
34 DECLARE_GLOBAL_DATA_PTR;
36 struct cpu_type cpu_type_list [] = {
37 CPU_TYPE_ENTRY(8533, 8533),
38 CPU_TYPE_ENTRY(8533, 8533_E),
39 CPU_TYPE_ENTRY(8540, 8540),
40 CPU_TYPE_ENTRY(8541, 8541),
41 CPU_TYPE_ENTRY(8541, 8541_E),
42 CPU_TYPE_ENTRY(8543, 8543),
43 CPU_TYPE_ENTRY(8543, 8543_E),
44 CPU_TYPE_ENTRY(8544, 8544),
45 CPU_TYPE_ENTRY(8544, 8544_E),
46 CPU_TYPE_ENTRY(8545, 8545),
47 CPU_TYPE_ENTRY(8545, 8545_E),
48 CPU_TYPE_ENTRY(8547, 8547_E),
49 CPU_TYPE_ENTRY(8548, 8548),
50 CPU_TYPE_ENTRY(8548, 8548_E),
51 CPU_TYPE_ENTRY(8555, 8555),
52 CPU_TYPE_ENTRY(8555, 8555_E),
53 CPU_TYPE_ENTRY(8560, 8560),
54 CPU_TYPE_ENTRY(8567, 8567),
55 CPU_TYPE_ENTRY(8567, 8567_E),
56 CPU_TYPE_ENTRY(8568, 8568),
57 CPU_TYPE_ENTRY(8568, 8568_E),
58 CPU_TYPE_ENTRY(8572, 8572),
59 CPU_TYPE_ENTRY(8572, 8572_E),
62 struct cpu_type *identify_cpu(u32 ver)
65 for (i = 0; i < ARRAY_SIZE(cpu_type_list); i++)
66 if (cpu_type_list[i].soc_ver == ver)
67 return &cpu_type_list[i];
75 uint lcrr; /* local bus clock ratio register */
76 uint clkdiv; /* clock divider portion of lcrr */
82 #ifdef CONFIG_DDR_CLK_FREQ
83 volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR);
84 u32 ddr_ratio = ((gur->porpllsr) & 0x00003e00) >> 9;
90 ver = SVR_SOC_VER(svr);
96 cpu = identify_cpu(ver);
106 printf(", Version: %d.%d, (0x%08x)\n", major, minor, svr);
111 major = PVR_MAJ(pvr);
112 minor = PVR_MIN(pvr);
116 case PVR_FAM(PVR_85xx):
123 printf(", Version: %d.%d, (0x%08x)\n", major, minor, pvr);
125 get_sys_info(&sysinfo);
127 puts("Clock Configuration:\n");
128 printf(" CPU:%4lu MHz, ", DIV_ROUND_UP(sysinfo.freqProcessor,1000000));
129 printf("CCB:%4lu MHz,\n", DIV_ROUND_UP(sysinfo.freqSystemBus,1000000));
133 printf(" DDR:%4lu MHz (%lu MT/s data rate), ",
134 DIV_ROUND_UP(sysinfo.freqDDRBus,2000000), DIV_ROUND_UP(sysinfo.freqDDRBus,1000000));
137 printf(" DDR:%4lu MHz (%lu MT/s data rate) (Synchronous), ",
138 DIV_ROUND_UP(sysinfo.freqDDRBus, 2000000), DIV_ROUND_UP(sysinfo.freqDDRBus, 1000000));
141 printf(" DDR:%4lu MHz (%lu MT/s data rate) (Asynchronous), ",
142 DIV_ROUND_UP(sysinfo.freqDDRBus, 2000000), DIV_ROUND_UP(sysinfo.freqDDRBus,1000000));
146 #if defined(CFG_LBC_LCRR)
150 volatile ccsr_lbc_t *lbc = (void *)(CFG_MPC85xx_LBC_ADDR);
155 clkdiv = lcrr & 0x0f;
156 if (clkdiv == 2 || clkdiv == 4 || clkdiv == 8) {
157 #if defined(CONFIG_MPC8548) || defined(CONFIG_MPC8544)
159 * Yes, the entire PQ38 family use the same
160 * bit-representation for twice the clock divider values.
164 printf("LBC:%4lu MHz\n",
165 DIV_ROUND_UP(sysinfo.freqSystemBus, 1000000) / clkdiv);
167 printf("LBC: unknown (lcrr: 0x%08x)\n", lcrr);
171 printf("CPM: %lu Mhz\n", sysinfo.freqSystemBus / 1000000);
174 puts("L1: D-cache 32 kB enabled\n I-cache 32 kB enabled\n");
180 /* ------------------------------------------------------------------------- */
182 int do_reset (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
186 unsigned long val, msr;
192 /* e500 v2 core has reset control register */
193 volatile unsigned int * rstcr;
194 rstcr = (volatile unsigned int *)(CFG_IMMR + 0xE00B0);
195 *rstcr = 0x2; /* HRESET_REQ */
200 * Fallthrough if the code above failed
201 * Initiate hard reset in debug control register DBCR0
202 * Make sure MSR[DE] = 1
218 * Get timebase clock frequency
220 unsigned long get_tbclk (void)
222 return (gd->bus_clk + 4UL)/8UL;
226 #if defined(CONFIG_WATCHDOG)
230 int re_enable = disable_interrupts();
231 reset_85xx_watchdog();
232 if (re_enable) enable_interrupts();
236 reset_85xx_watchdog(void)
239 * Clear TSR(WIS) bit by writing 1
242 val = mfspr(SPRN_TSR);
244 mtspr(SPRN_TSR, val);
246 #endif /* CONFIG_WATCHDOG */
248 #if defined(CONFIG_DDR_ECC)
249 void dma_init(void) {
250 volatile ccsr_dma_t *dma = (void *)(CFG_MPC85xx_DMA_ADDR);
252 dma->satr0 = 0x02c40000;
253 dma->datr0 = 0x02c40000;
254 dma->sr0 = 0xfffffff; /* clear any errors */
255 asm("sync; isync; msync");
259 uint dma_check(void) {
260 volatile ccsr_dma_t *dma = (void *)(CFG_MPC85xx_DMA_ADDR);
261 volatile uint status = dma->sr0;
263 /* While the channel is busy, spin */
264 while((status & 4) == 4) {
268 /* clear MR0[CS] channel start bit */
269 dma->mr0 &= 0x00000001;
270 asm("sync;isync;msync");
273 printf ("DMA Error: status = %x\n", status);
278 int dma_xfer(void *dest, uint count, void *src) {
279 volatile ccsr_dma_t *dma = (void *)(CFG_MPC85xx_DMA_ADDR);
281 dma->dar0 = (uint) dest;
282 dma->sar0 = (uint) src;
284 dma->mr0 = 0xf000004;
285 asm("sync;isync;msync");
286 dma->mr0 = 0xf000005;
287 asm("sync;isync;msync");
292 * Configures a UPM. Currently, the loop fields in MxMR (RLF, WLF and TLF)
293 * are hardcoded as "1"."size" is the number or entries, not a sizeof.
295 void upmconfig (uint upm, uint * table, uint size)
297 int i, mdr, mad, old_mad = 0;
299 volatile ccsr_lbc_t *lbc = (void *)(CFG_MPC85xx_LBC_ADDR);
300 int loopval = 0x00004440;
301 volatile u32 *brp,*orp;
302 volatile u8* dummy = NULL;
308 upmmask = BR_MS_UPMA;
312 upmmask = BR_MS_UPMB;
316 upmmask = BR_MS_UPMC;
319 printf("%s: Bad UPM index %d to configure\n", __FUNCTION__, upm);
323 /* Find the address for the dummy write transaction */
324 for (brp = &lbc->br0, orp = &lbc->or0, i = 0; i < 8;
325 i++, brp += 2, orp += 2) {
327 /* Look for a valid BR with selected UPM */
328 if ((in_be32(brp) & (BR_V | upmmask)) == (BR_V | upmmask)) {
329 dummy = (volatile u8*)(in_be32(brp) >> BR_BA_SHIFT);
335 printf("Error: %s() could not find matching BR\n", __FUNCTION__);
339 for (i = 0; i < size; i++) {
341 out_be32(mxmr, loopval | 0x10000000 | i); /* OP_WRITE */
343 out_be32(&lbc->mdr, table[i]);
345 mdr = in_be32(&lbc->mdr);
347 *(volatile u8 *)dummy = 0;
350 mad = in_be32(mxmr) & 0x3f;
351 } while (mad <= old_mad && !(!mad && i == (size-1)));
354 out_be32(mxmr, loopval); /* OP_NORMAL */