2 * (C) Copyright 2000-2007
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
27 * written or collected and sometimes rewritten by
28 * Magnus Damm <damm@bitsmart.com>
30 * minor modifications by
31 * Wolfgang Denk <wd@denx.de>
37 #include <asm/cache.h>
41 DECLARE_GLOBAL_DATA_PTR;
43 void board_reset(void);
46 * To provide an interface to detect CPU number for boards that support
47 * more then one CPU, we implement the "weak" default functions here.
51 int __get_cpu_num(void)
53 return NA_OR_UNKNOWN_CPU;
55 int get_cpu_num(void) __attribute__((weak, alias("__get_cpu_num")));
57 #if defined(CONFIG_PCI)
58 #if defined(CONFIG_405GP) || \
59 defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
60 defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
64 static int pci_async_enabled(void)
66 #if defined(CONFIG_405GP)
67 return (mfdcr(strap) & PSR_PCI_ASYNC_EN);
70 #if defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
71 defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
72 defined(CONFIG_460EX) || defined(CONFIG_460GT)
75 mfsdr(sdr_sdstp1, val);
76 return (val & SDR0_SDSTP1_PAME_MASK);
80 #endif /* CONFIG_PCI */
82 #if defined(CONFIG_PCI) && !defined(CONFIG_IOP480) && \
83 !defined(CONFIG_405) && !defined(CONFIG_405EX)
84 static int pci_arbiter_enabled(void)
86 #if defined(CONFIG_405GP)
87 return (mfdcr(strap) & PSR_PCI_ARBIT_EN);
90 #if defined(CONFIG_405EP)
91 return (mfdcr(cpc0_pci) & CPC0_PCI_ARBIT_EN);
94 #if defined(CONFIG_440GP)
95 return (mfdcr(cpc0_strp1) & CPC0_STRP1_PAE_MASK);
98 #if defined(CONFIG_440GX) || defined(CONFIG_440SP) || defined(CONFIG_440SPE)
102 return (val & 0x80000000);
104 #if defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
105 defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
106 defined(CONFIG_460EX) || defined(CONFIG_460GT)
109 mfsdr(sdr_pci0, val);
110 return (val & 0x80000000);
115 #if defined(CONFIG_405EP)
118 static int i2c_bootrom_enabled(void)
120 #if defined(CONFIG_405EP)
121 return (mfdcr(cpc0_boot) & CPC0_BOOT_SEP);
125 mfsdr(sdr_sdcs, val);
126 return (val & SDR0_SDCS_SDD);
131 #if defined(CONFIG_440GX)
132 #define SDR0_PINSTP_SHIFT 29
133 static char *bootstrap_str[] = {
143 static char bootstrap_char[] = { 'A', 'B', 'C', 'B', 'D', 'E', 'x', 'F' };
146 #if defined(CONFIG_440SP) || defined(CONFIG_440SPE)
147 #define SDR0_PINSTP_SHIFT 30
148 static char *bootstrap_str[] = {
154 static char bootstrap_char[] = { 'A', 'B', 'C', 'D'};
157 #if defined(CONFIG_440EP) || defined(CONFIG_440GR)
158 #define SDR0_PINSTP_SHIFT 29
159 static char *bootstrap_str[] = {
169 static char bootstrap_char[] = { 'A', 'B', 'C', 'D', 'E', 'G', 'F', 'H' };
172 #if defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
173 #define SDR0_PINSTP_SHIFT 29
174 static char *bootstrap_str[] = {
184 static char bootstrap_char[] = { 'A', 'B', 'C', 'D', 'E', 'G', 'F', 'H' };
187 #if defined(CONFIG_460EX) || defined(CONFIG_460GT)
188 #define SDR0_PINSTP_SHIFT 29
189 static char *bootstrap_str[] = {
196 "I2C (Addr 0x54)", /* A8 */
197 "I2C (Addr 0x52)", /* A4 */
199 static char bootstrap_char[] = { 'A', 'B', 'C', 'D', 'E', 'G', 'F', 'H' };
202 #if defined(CONFIG_460SX)
203 #define SDR0_PINSTP_SHIFT 29
204 static char *bootstrap_str[] = {
209 "I2C (Addr 0x54)", /* A8 */
210 "I2C (Addr 0x52)", /* A4 */
212 static char bootstrap_char[] = { 'A', 'B', 'C', 'D', 'E', 'G' };
215 #if defined(CONFIG_405EZ)
216 #define SDR0_PINSTP_SHIFT 28
217 static char *bootstrap_str[] = {
220 "NAND (512 page, 4 addr cycle)",
224 "NAND (2K page, 5 addr cycle)",
228 "NAND (2K page, 4 addr cycle)",
230 "NAND (512 page, 3 addr cycle)",
235 static char bootstrap_char[] = { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', \
236 'I', 'x', 'K', 'L', 'M', 'N', 'O', 'P' };
239 #if defined(CONFIG_405EX)
240 #define SDR0_PINSTP_SHIFT 29
241 static char *bootstrap_str[] = {
251 static char bootstrap_char[] = { 'A', 'B', 'C', 'D', 'E', 'G', 'F', 'H' };
254 #if defined(SDR0_PINSTP_SHIFT)
255 static int bootstrap_option(void)
259 mfsdr(SDR_PINSTP, val);
260 return ((val & 0xf0000000) >> SDR0_PINSTP_SHIFT);
262 #endif /* SDR0_PINSTP_SHIFT */
265 #if defined(CONFIG_440)
266 static int do_chip_reset (unsigned long sys0, unsigned long sys1)
268 /* Changes to cpc0_sys0 and cpc0_sys1 require chip
271 mtdcr (cntrl0, mfdcr (cntrl0) | 0x80000000); /* Set SWE */
272 mtdcr (cpc0_sys0, sys0);
273 mtdcr (cpc0_sys1, sys1);
274 mtdcr (cntrl0, mfdcr (cntrl0) & ~0x80000000); /* Clr SWE */
275 mtspr (SPRN_DBCR0, 0x20000000); /* Reset the chip */
284 #if !defined(CONFIG_405) /* not used on Xilinx 405 FPGA implementations */
285 uint pvr = get_pvr();
286 ulong clock = gd->cpu_clk;
289 #if !defined(CONFIG_IOP480)
290 char addstr[64] = "";
294 cpu_num = get_cpu_num();
296 printf("CPU%d: ", cpu_num);
300 get_sys_info(&sys_info);
302 #if defined(CONFIG_XILINX_440)
303 puts("IBM PowerPC 4");
305 puts("AMCC PowerPC 4");
308 #if defined(CONFIG_405GP) || defined(CONFIG_405CR) || \
309 defined(CONFIG_405EP) || defined(CONFIG_405EZ) || \
310 defined(CONFIG_405EX)
313 #if defined(CONFIG_440)
314 #if defined(CONFIG_460EX) || defined(CONFIG_460GT)
335 case PVR_405GP_RE: /* 405GP rev E and 405CR rev C have same PVR */
349 case PVR_405CR_RC: /* 405GP rev E and 405CR rev C have same PVR */
368 strcpy(addstr, "Security support");
373 strcpy(addstr, "No Security support");
378 strcpy(addstr, "Security support");
383 strcpy(addstr, "No Security support");
388 strcpy(addstr, "Security support");
393 strcpy(addstr, "No Security support");
398 strcpy(addstr, "Security support");
403 strcpy(addstr, "No Security support");
406 #if defined(CONFIG_440)
409 /* See errata 1.12: CHIP_4 */
410 if ((mfdcr(cpc0_sys0) != mfdcr(cpc0_strp0)) ||
411 (mfdcr(cpc0_sys1) != mfdcr(cpc0_strp1)) ){
412 puts ( "\n\t CPC0_SYSx DCRs corrupted. "
413 "Resetting chip ...\n");
414 udelay( 1000 * 1000 ); /* Give time for serial buf to clear */
415 do_chip_reset ( mfdcr(cpc0_strp0),
445 case PVR_440EP_RB: /* 440EP rev B and 440GR rev A have same PVR */
449 case PVR_440EP_RC: /* 440EP rev C and 440GR rev B have same PVR */
452 #endif /* CONFIG_440EP */
455 case PVR_440GR_RA: /* 440EP rev B and 440GR rev A have same PVR */
459 case PVR_440GR_RB: /* 440EP rev C and 440GR rev B have same PVR */
462 #endif /* CONFIG_440GR */
463 #endif /* CONFIG_440 */
466 case PVR_440EPX1_RA: /* 440EPx rev A and 440GRx rev A have same PVR */
468 strcpy(addstr, "Security/Kasumi support");
471 case PVR_440EPX2_RA: /* 440EPx rev A and 440GRx rev A have same PVR */
473 strcpy(addstr, "No Security/Kasumi support");
475 #endif /* CONFIG_440EPX */
478 case PVR_440GRX1_RA: /* 440EPx rev A and 440GRx rev A have same PVR */
480 strcpy(addstr, "Security/Kasumi support");
483 case PVR_440GRX2_RA: /* 440EPx rev A and 440GRx rev A have same PVR */
485 strcpy(addstr, "No Security/Kasumi support");
487 #endif /* CONFIG_440GRX */
489 case PVR_440SP_6_RAB:
491 strcpy(addstr, "RAID 6 support");
496 strcpy(addstr, "No RAID 6 support");
501 strcpy(addstr, "RAID 6 support");
506 strcpy(addstr, "No RAID 6 support");
509 case PVR_440SPe_6_RA:
511 strcpy(addstr, "RAID 6 support");
516 strcpy(addstr, "No RAID 6 support");
519 case PVR_440SPe_6_RB:
521 strcpy(addstr, "RAID 6 support");
526 strcpy(addstr, "No RAID 6 support");
531 strcpy(addstr, "No Security/Kasumi support");
534 case PVR_460EX_SE_RA:
536 strcpy(addstr, "Security/Kasumi support");
541 strcpy(addstr, "No Security/Kasumi support");
544 case PVR_460GT_SE_RA:
546 strcpy(addstr, "Security/Kasumi support");
551 strcpy(addstr, "Security support");
554 case PVR_460SX_RA_V1:
556 strcpy(addstr, "No Security support");
561 strcpy(addstr, "Security support");
564 case PVR_460GX_RA_V1:
566 strcpy(addstr, "No Security support");
574 printf (" UNKNOWN (PVR=%08x)", pvr);
578 printf (" at %s MHz (PLB=%lu, OPB=%lu, EBC=%lu MHz)\n", strmhz(buf, clock),
579 sys_info.freqPLB / 1000000,
580 get_OPB_freq() / 1000000,
581 sys_info.freqEBC / 1000000);
584 printf(" %s\n", addstr);
586 #if defined(I2C_BOOTROM)
587 printf (" I2C boot EEPROM %sabled\n", i2c_bootrom_enabled() ? "en" : "dis");
588 #endif /* I2C_BOOTROM */
589 #if defined(SDR0_PINSTP_SHIFT)
590 printf (" Bootstrap Option %c - ", bootstrap_char[bootstrap_option()]);
591 printf ("Boot ROM Location %s", bootstrap_str[bootstrap_option()]);
592 #ifdef CONFIG_NAND_U_BOOT
593 puts(", booting from NAND");
594 #endif /* CONFIG_NAND_U_BOOT */
596 #endif /* SDR0_PINSTP_SHIFT */
598 #if defined(CONFIG_PCI) && !defined(CONFIG_405EX)
599 printf (" Internal PCI arbiter %sabled", pci_arbiter_enabled() ? "en" : "dis");
602 #if defined(CONFIG_PCI) && defined(PCI_ASYNC)
603 if (pci_async_enabled()) {
604 printf (", PCI async ext clock used");
606 printf (", PCI sync clock at %lu MHz",
607 sys_info.freqPLB / sys_info.pllPciDiv / 1000000);
611 #if defined(CONFIG_PCI) && !defined(CONFIG_405EX)
615 #if defined(CONFIG_405EP) || defined(CONFIG_405EZ) || defined(CONFIG_405EX)
616 printf (" 16 kB I-Cache 16 kB D-Cache");
617 #elif defined(CONFIG_440)
618 printf (" 32 kB I-Cache 32 kB D-Cache");
620 printf (" 16 kB I-Cache %d kB D-Cache",
621 ((pvr | 0x00000001) == PVR_405GPR_RB) ? 16 : 8);
623 #endif /* !defined(CONFIG_IOP480) */
625 #if defined(CONFIG_IOP480)
626 printf ("PLX IOP480 (PVR=%08x)", pvr);
627 printf (" at %s MHz:", strmhz(buf, clock));
628 printf (" %u kB I-Cache", 4);
629 printf (" %u kB D-Cache", 2);
632 #endif /* !defined(CONFIG_405) */
639 int ppc440spe_revB() {
643 if ((pvr == PVR_440SPe_6_RB) || (pvr == PVR_440SPe_RB))
649 /* ------------------------------------------------------------------------- */
651 int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
653 #if defined(CONFIG_BOARD_RESET)
656 #if defined(CONFIG_SYS_4xx_RESET_TYPE)
657 mtspr(SPRN_DBCR0, CONFIG_SYS_4xx_RESET_TYPE << 28);
660 * Initiate system reset in debug control register DBCR
662 mtspr(SPRN_DBCR0, 0x30000000);
663 #endif /* defined(CONFIG_SYS_4xx_RESET_TYPE) */
664 #endif /* defined(CONFIG_BOARD_RESET) */
671 * Get timebase clock frequency
673 unsigned long get_tbclk (void)
675 #if !defined(CONFIG_IOP480)
678 get_sys_info(&sys_info);
679 return (sys_info.freqProcessor);
687 #if defined(CONFIG_WATCHDOG)
688 void watchdog_reset(void)
690 int re_enable = disable_interrupts();
691 reset_4xx_watchdog();
692 if (re_enable) enable_interrupts();
695 void reset_4xx_watchdog(void)
700 mtspr(SPRN_TSR, 0x40000000);
702 #endif /* CONFIG_WATCHDOG */
705 * Initializes on-chip ethernet controllers.
706 * to override, implement board_eth_init()
708 int cpu_eth_init(bd_t *bis)
710 #if defined(CONFIG_PPC4xx_EMAC)
711 ppc_4xx_eth_initialize(bis);