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 #if defined(CONFIG_OF_FLAT_TREE)
42 uint lcrr; /* local bus clock ratio register */
43 uint clkdiv; /* clock divider portion of lcrr */
45 puts("Freescale PowerPC\n");
56 case PVR_VER(PVR_86xx):
63 printf(", Version: %d.%d, (0x%08x)\n", major, minor, pvr);
73 if (SVR_SUBVER(svr) == 1) {
83 printf(", Version: %d.%d, (0x%08x)\n", major, minor, svr);
85 get_sys_info(&sysinfo);
88 printf("CPU:%4lu MHz, ", sysinfo.freqProcessor / 1000000);
89 printf("MPX:%4lu MHz, ", sysinfo.freqSystemBus / 1000000);
90 printf("DDR:%4lu MHz, ", sysinfo.freqSystemBus / 2000000);
92 #if defined(CFG_LBC_LCRR)
96 volatile immap_t *immap = (immap_t *) CFG_IMMR;
97 volatile ccsr_lbc_t *lbc = &immap->im_lbc;
102 clkdiv = lcrr & 0x0f;
103 if (clkdiv == 2 || clkdiv == 4 || clkdiv == 8) {
104 printf("LBC:%4lu MHz\n",
105 sysinfo.freqSystemBus / 1000000 / clkdiv);
107 printf(" LBC: unknown (lcrr: 0x%08x)\n", lcrr);
111 if (get_l2cr() & 0x80000000)
121 soft_restart(unsigned long addr)
123 #ifndef CONFIG_MPC8641HPCN
126 * SRR0 has system reset vector, SRR1 has default MSR value
127 * rfi restores MSR from SRR1 and sets the PC to the SRR0 value
130 __asm__ __volatile__ ("mtspr 26, %0" :: "r" (addr));
131 __asm__ __volatile__ ("li 4, (1 << 6)" ::: "r4");
132 __asm__ __volatile__ ("mtspr 27, 4");
133 __asm__ __volatile__ ("rfi");
135 #else /* CONFIG_MPC8641HPCN */
137 out8(PIXIS_BASE + PIXIS_RST, 0);
139 #endif /* !CONFIG_MPC8641HPCN */
141 while (1) ; /* not reached */
146 * No generic way to do board reset. Simply call soft_reset.
149 do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
151 #ifndef CONFIG_MPC8641HPCN
153 #ifdef CFG_RESET_ADDRESS
154 ulong addr = CFG_RESET_ADDRESS;
157 * note: when CFG_MONITOR_BASE points to a RAM address,
158 * CFG_MONITOR_BASE - sizeof (ulong) is usually a valid
159 * address. Better pick an address known to be invalid on your
160 * system and assign it to CFG_RESET_ADDRESS.
162 ulong addr = CFG_MONITOR_BASE - sizeof(ulong);
165 /* flush and disable I/D cache */
166 __asm__ __volatile__ ("mfspr 3, 1008" ::: "r3");
167 __asm__ __volatile__ ("ori 5, 5, 0xcc00" ::: "r5");
168 __asm__ __volatile__ ("ori 4, 3, 0xc00" ::: "r4");
169 __asm__ __volatile__ ("andc 5, 3, 5" ::: "r5");
170 __asm__ __volatile__ ("sync");
171 __asm__ __volatile__ ("mtspr 1008, 4");
172 __asm__ __volatile__ ("isync");
173 __asm__ __volatile__ ("sync");
174 __asm__ __volatile__ ("mtspr 1008, 5");
175 __asm__ __volatile__ ("isync");
176 __asm__ __volatile__ ("sync");
180 #else /* CONFIG_MPC8641HPCN */
182 out8(PIXIS_BASE + PIXIS_RST, 0);
184 #endif /* !CONFIG_MPC8641HPCN */
186 while (1) ; /* not reached */
191 * Get timebase clock frequency
198 get_sys_info(&sys_info);
199 return (sys_info.freqSystemBus + 3L) / 4L;
203 #if defined(CONFIG_WATCHDOG)
208 #endif /* CONFIG_WATCHDOG */
211 #if defined(CONFIG_DDR_ECC)
215 volatile immap_t *immap = (immap_t *) CFG_IMMR;
216 volatile ccsr_dma_t *dma = &immap->im_dma;
218 dma->satr0 = 0x00040000;
219 dma->datr0 = 0x00040000;
226 volatile immap_t *immap = (immap_t *) CFG_IMMR;
227 volatile ccsr_dma_t *dma = &immap->im_dma;
228 volatile uint status = dma->sr0;
230 /* While the channel is busy, spin */
231 while ((status & 4) == 4) {
236 printf("DMA Error: status = %x\n", status);
242 dma_xfer(void *dest, uint count, void *src)
244 volatile immap_t *immap = (immap_t *) CFG_IMMR;
245 volatile ccsr_dma_t *dma = &immap->im_dma;
247 dma->dar0 = (uint) dest;
248 dma->sar0 = (uint) src;
250 dma->mr0 = 0xf000004;
252 dma->mr0 = 0xf000005;
257 #endif /* CONFIG_DDR_ECC */
260 #ifdef CONFIG_OF_FLAT_TREE
262 ft_cpu_setup(void *blob, bd_t *bd)
268 clock = bd->bi_busfreq;
269 p = ft_get_prop(blob, "/cpus/" OF_CPU "/bus-frequency", &len);
271 *p = cpu_to_be32(clock);
273 p = ft_get_prop(blob, "/" OF_SOC "/serial@4500/clock-frequency", &len);
275 *p = cpu_to_be32(clock);
277 p = ft_get_prop(blob, "/" OF_SOC "/serial@4600/clock-frequency", &len);
279 *p = cpu_to_be32(clock);
281 #if defined(CONFIG_TSEC1)
282 p = ft_get_prop(blob, "/" OF_SOC "/ethernet@24000/mac-address", &len);
284 memcpy(p, bd->bi_enetaddr, 6);
285 p = ft_get_prop(blob, "/" OF_SOC "/ethernet@24000/local-mac-address", &len);
287 memcpy(p, bd->bi_enetaddr, 6);
290 #if defined(CONFIG_TSEC2)
291 p = ft_get_prop(blob, "/" OF_SOC "/ethernet@25000/mac-address", &len);
293 memcpy(p, bd->bi_enet1addr, 6);
294 p = ft_get_prop(blob, "/" OF_SOC "/ethernet@25000/local-mac-address", &len);
296 memcpy(p, bd->bi_enet1addr, 6);
299 #if defined(CONFIG_TSEC3)
300 p = ft_get_prop(blob, "/" OF_SOC "/ethernet@26000/mac-address", &len);
302 memcpy(p, bd->bi_enet2addr, 6);
303 p = ft_get_prop(blob, "/" OF_SOC "/ethernet@26000/local-mac-address", &len);
305 memcpy(p, bd->bi_enet2addr, 6);
308 #if defined(CONFIG_TSEC4)
309 p = ft_get_prop(blob, "/" OF_SOC "/ethernet@27000/mac-address", &len);
311 memcpy(p, bd->bi_enet3addr, 6);
312 p = ft_get_prop(blob, "/" OF_SOC "/ethernet@27000/local-mac-address", &len);
314 memcpy(p, bd->bi_enet3addr, 6);