2 * Copyright 2006 Freescale Semiconductor
6 * See file CREDITS for list of people who contributed to this
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.
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.
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,
28 #include <asm/cache.h>
31 #include <asm/fsl_law.h>
41 uint lcrr; /* local bus clock ratio register */
42 uint clkdiv; /* clock divider portion of lcrr */
43 volatile immap_t *immap = (immap_t *) CFG_IMMR;
44 volatile ccsr_gur_t *gur = &immap->im_gur;
46 puts("Freescale PowerPC\n");
57 case PVR_VER(PVR_86xx):
59 uint msscr0 = mfspr(MSSCR0);
60 printf("E600 Core %d", (msscr0 & 0x20) ? 1 : 0 );
61 if (gur->pordevsr & MPC86xx_PORDEVSR_CORE1TE)
62 puts("\n Core1Translation Enabled");
63 debug(" (MSSCR0=%x, PORDEVSR=%x)", msscr0, gur->pordevsr);
70 printf(", Version: %d.%d, (0x%08x)\n", major, minor, pvr);
73 ver = SVR_SOC_VER(svr);
80 if (SVR_SUBVER(svr) == 1) {
93 printf(", Version: %d.%d, (0x%08x)\n", major, minor, svr);
95 get_sys_info(&sysinfo);
98 printf("CPU:%4lu MHz, ", sysinfo.freqProcessor / 1000000);
99 printf("MPX:%4lu MHz, ", sysinfo.freqSystemBus / 1000000);
100 printf("DDR:%4lu MHz, ", sysinfo.freqSystemBus / 2000000);
102 #if defined(CFG_LBC_LCRR)
106 volatile immap_t *immap = (immap_t *) CFG_IMMR;
107 volatile ccsr_lbc_t *lbc = &immap->im_lbc;
112 clkdiv = lcrr & 0x0f;
113 if (clkdiv == 2 || clkdiv == 4 || clkdiv == 8) {
114 printf("LBC:%4lu MHz\n",
115 sysinfo.freqSystemBus / 1000000 / clkdiv);
117 printf(" LBC: unknown (lcrr: 0x%08x)\n", lcrr);
121 if (get_l2cr() & 0x80000000)
131 soft_restart(unsigned long addr)
133 #if !defined(CONFIG_MPC8641HPCN) && !defined(CONFIG_MPC8610HPCD)
136 * SRR0 has system reset vector, SRR1 has default MSR value
137 * rfi restores MSR from SRR1 and sets the PC to the SRR0 value
140 __asm__ __volatile__ ("mtspr 26, %0" :: "r" (addr));
141 __asm__ __volatile__ ("li 4, (1 << 6)" ::: "r4");
142 __asm__ __volatile__ ("mtspr 27, 4");
143 __asm__ __volatile__ ("rfi");
145 #else /* CONFIG_MPC8641HPCN */
147 out8(PIXIS_BASE + PIXIS_RST, 0);
149 #endif /* !CONFIG_MPC8641HPCN */
151 while (1) ; /* not reached */
156 * No generic way to do board reset. Simply call soft_reset.
159 do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
161 #if !defined(CONFIG_MPC8641HPCN) && !defined(CONFIG_MPC8610HPCD)
163 #ifdef CFG_RESET_ADDRESS
164 ulong addr = CFG_RESET_ADDRESS;
167 * note: when CFG_MONITOR_BASE points to a RAM address,
168 * CFG_MONITOR_BASE - sizeof (ulong) is usually a valid
169 * address. Better pick an address known to be invalid on your
170 * system and assign it to CFG_RESET_ADDRESS.
172 ulong addr = CFG_MONITOR_BASE - sizeof(ulong);
175 /* flush and disable I/D cache */
176 __asm__ __volatile__ ("mfspr 3, 1008" ::: "r3");
177 __asm__ __volatile__ ("ori 5, 5, 0xcc00" ::: "r5");
178 __asm__ __volatile__ ("ori 4, 3, 0xc00" ::: "r4");
179 __asm__ __volatile__ ("andc 5, 3, 5" ::: "r5");
180 __asm__ __volatile__ ("sync");
181 __asm__ __volatile__ ("mtspr 1008, 4");
182 __asm__ __volatile__ ("isync");
183 __asm__ __volatile__ ("sync");
184 __asm__ __volatile__ ("mtspr 1008, 5");
185 __asm__ __volatile__ ("isync");
186 __asm__ __volatile__ ("sync");
190 #else /* CONFIG_MPC8641HPCN */
192 out8(PIXIS_BASE + PIXIS_RST, 0);
194 #endif /* !CONFIG_MPC8641HPCN */
196 while (1) ; /* not reached */
201 * Get timebase clock frequency
208 get_sys_info(&sys_info);
209 return (sys_info.freqSystemBus + 3L) / 4L;
213 #if defined(CONFIG_WATCHDOG)
218 #endif /* CONFIG_WATCHDOG */
221 #if defined(CONFIG_DDR_ECC)
225 volatile immap_t *immap = (immap_t *) CFG_IMMR;
226 volatile ccsr_dma_t *dma = &immap->im_dma;
228 dma->satr0 = 0x00040000;
229 dma->datr0 = 0x00040000;
236 volatile immap_t *immap = (immap_t *) CFG_IMMR;
237 volatile ccsr_dma_t *dma = &immap->im_dma;
238 volatile uint status = dma->sr0;
240 /* While the channel is busy, spin */
241 while ((status & 4) == 4) {
246 printf("DMA Error: status = %x\n", status);
252 dma_xfer(void *dest, uint count, void *src)
254 volatile immap_t *immap = (immap_t *) CFG_IMMR;
255 volatile ccsr_dma_t *dma = &immap->im_dma;
257 dma->dar0 = (uint) dest;
258 dma->sar0 = (uint) src;
260 dma->mr0 = 0xf000004;
262 dma->mr0 = 0xf000005;
267 #endif /* CONFIG_DDR_ECC */
271 * Print out the state of various machine registers.
272 * Currently prints out LAWs, BR0/OR0, and BATs
274 void mpc86xx_reginfo(void)
276 immap_t *immap = (immap_t *)CFG_IMMR;
277 ccsr_lbc_t *lbc = &immap->im_lbc;
282 printf ("Local Bus Controller Registers\n"
283 "\tBR0\t0x%08X\tOR0\t0x%08X \n", in_be32(&lbc->br0), in_be32(&lbc->or0));
284 printf("\tBR1\t0x%08X\tOR1\t0x%08X \n", in_be32(&lbc->br1), in_be32(&lbc->or1));
285 printf("\tBR2\t0x%08X\tOR2\t0x%08X \n", in_be32(&lbc->br2), in_be32(&lbc->or2));
286 printf("\tBR3\t0x%08X\tOR3\t0x%08X \n", in_be32(&lbc->br3), in_be32(&lbc->or3));
287 printf("\tBR4\t0x%08X\tOR4\t0x%08X \n", in_be32(&lbc->br4), in_be32(&lbc->or4));
288 printf("\tBR5\t0x%08X\tOR5\t0x%08X \n", in_be32(&lbc->br5), in_be32(&lbc->or5));
289 printf("\tBR6\t0x%08X\tOR6\t0x%08X \n", in_be32(&lbc->br6), in_be32(&lbc->or6));
290 printf("\tBR7\t0x%08X\tOR7\t0x%08X \n", in_be32(&lbc->br7), in_be32(&lbc->or7));