/* * (C) Copyright 2000-2005 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ /* * Modified 4/5/2001 * Wait for completion of each sector erase command issued * 4/5/2001 * Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com */ #include <common.h> #include <ppc4xx.h> #include <asm/processor.h> #undef DEBUG #ifdef DEBUG #define DEBUGF(x...) printf(x) #else #define DEBUGF(x...) #endif /* DEBUG */ /* * include common flash code (for amcc boards) */ #include "../common/flash.c" /*----------------------------------------------------------------------- * Functions */ static ulong flash_get_size(vu_long * addr, flash_info_t * info); static void flash_get_offsets(ulong base, flash_info_t * info); unsigned long flash_init(void) { unsigned long size_b0, size_b1; int i; uint pbcr; unsigned long base_b0, base_b1; /* Init: no FLASHes known */ for (i = 0; i < CFG_MAX_FLASH_BANKS; ++i) { flash_info[i].flash_id = FLASH_UNKNOWN; } /* Static FLASH Bank configuration here - FIXME XXX */ size_b0 = flash_get_size((vu_long *) FLASH_BASE0_PRELIM, &flash_info[0]); if (flash_info[0].flash_id == FLASH_UNKNOWN) { printf("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n", size_b0, size_b0 << 20); } /* Only one bank */ if (CFG_MAX_FLASH_BANKS == 1) { /* Setup offsets */ flash_get_offsets(FLASH_BASE0_PRELIM, &flash_info[0]); /* Monitor protection ON by default */ (void)flash_protect(FLAG_PROTECT_SET, CFG_MONITOR_BASE, CFG_MONITOR_BASE + CFG_MONITOR_LEN - 1, &flash_info[0]); #ifdef CFG_ENV_IS_IN_FLASH (void)flash_protect(FLAG_PROTECT_SET, CFG_ENV_ADDR, CFG_ENV_ADDR + CFG_ENV_SECT_SIZE - 1, &flash_info[0]); (void)flash_protect(FLAG_PROTECT_SET, CFG_ENV_ADDR_REDUND, CFG_ENV_ADDR_REDUND + CFG_ENV_SECT_SIZE - 1, &flash_info[0]); #endif size_b1 = 0; flash_info[0].size = size_b0; } else { /* 2 banks */ size_b1 = flash_get_size((vu_long *) FLASH_BASE1_PRELIM, &flash_info[1]); /* Re-do sizing to get full correct info */ if (size_b1) { mtdcr(ebccfga, pb0cr); pbcr = mfdcr(ebccfgd); mtdcr(ebccfga, pb0cr); base_b1 = -size_b1; pbcr = (pbcr & 0x0001ffff) | base_b1 | (((size_b1 / 1024 / 1024) - 1) << 17); mtdcr(ebccfgd, pbcr); /* printf("pb1cr = %x\n", pbcr); */ } if (size_b0) { mtdcr(ebccfga, pb1cr); pbcr = mfdcr(ebccfgd); mtdcr(ebccfga, pb1cr); base_b0 = base_b1 - size_b0; pbcr = (pbcr & 0x0001ffff) | base_b0 | (((size_b0 / 1024 / 1024) - 1) << 17); mtdcr(ebccfgd, pbcr); /* printf("pb0cr = %x\n", pbcr); */ } size_b0 = flash_get_size((vu_long *) base_b0, &flash_info[0]); flash_get_offsets(base_b0, &flash_info[0]); /* monitor protection ON by default */ (void)flash_protect(FLAG_PROTECT_SET, base_b0 + size_b0 - monitor_flash_len, base_b0 + size_b0 - 1, &flash_info[0]); if (size_b1) { /* Re-do sizing to get full correct info */ size_b1 = flash_get_size((vu_long *) base_b1, &flash_info[1]); flash_get_offsets(base_b1, &flash_info[1]); /* monitor protection ON by default */ (void)flash_protect(FLAG_PROTECT_SET, base_b1 + size_b1 - monitor_flash_len, base_b1 + size_b1 - 1, &flash_info[1]); /* monitor protection OFF by default (one is enough) */ (void)flash_protect(FLAG_PROTECT_CLEAR, base_b0 + size_b0 - monitor_flash_len, base_b0 + size_b0 - 1, &flash_info[0]); } else { flash_info[1].flash_id = FLASH_UNKNOWN; flash_info[1].sector_count = -1; } flash_info[0].size = size_b0; flash_info[1].size = size_b1; } /* else 2 banks */ return (size_b0 + size_b1); } static void flash_get_offsets(ulong base, flash_info_t * info) { int i; /* set up sector start address table */ if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) || (info->flash_id == FLASH_AM040)) { for (i = 0; i < info->sector_count; i++) info->start[i] = base + (i * 0x00010000); } else { if (info->flash_id & FLASH_BTYPE) { /* set sector offsets for bottom boot block type */ info->start[0] = base + 0x00000000; info->start[1] = base + 0x00004000; info->start[2] = base + 0x00006000; info->start[3] = base + 0x00008000; for (i = 4; i < info->sector_count; i++) { info->start[i] = base + (i * 0x00010000) - 0x00030000; } } else { /* set sector offsets for top boot block type */ i = info->sector_count - 1; info->start[i--] = base + info->size - 0x00004000; info->start[i--] = base + info->size - 0x00006000; info->start[i--] = base + info->size - 0x00008000; for (; i >= 0; i--) { info->start[i] = base + i * 0x00010000; } } } }