/* * (C) Copyright 2001 * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com * * 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 */ #include <common.h> #include <ppc4xx.h> #include <asm/processor.h> /* * include common flash code (for esd 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; /* Init: no FLASHes known */ for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) { flash_info[i].flash_id = FLASH_UNKNOWN; } 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); } size_b1 = flash_get_size((vu_long *)FLASH_BASE1_PRELIM, &flash_info[1]); if (size_b1 > size_b0) { printf ("## ERROR: " "Bank 1 (0x%08lx = %ld MB) > Bank 0 (0x%08lx = %ld MB)\n", size_b1, size_b1<<20, size_b0, size_b0<<20 ); flash_info[0].flash_id = FLASH_UNKNOWN; flash_info[1].flash_id = FLASH_UNKNOWN; flash_info[0].sector_count = -1; flash_info[1].sector_count = -1; flash_info[0].size = 0; flash_info[1].size = 0; return (0); } /* Re-do sizing to get full correct info */ size_b0 = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]); flash_get_offsets (FLASH_BASE0_PRELIM, &flash_info[0]); /* monitor protection ON by default */ flash_protect(FLAG_PROTECT_SET, FLASH_BASE0_PRELIM+size_b0-monitor_flash_len, FLASH_BASE0_PRELIM+size_b0-1, &flash_info[0]); if (size_b1) { /* Re-do sizing to get full correct info */ size_b1 = flash_get_size((vu_long *)(FLASH_BASE0_PRELIM + size_b0), &flash_info[1]); flash_get_offsets (FLASH_BASE0_PRELIM + size_b0, &flash_info[1]); /* monitor protection ON by default */ flash_protect(FLAG_PROTECT_SET, FLASH_BASE0_PRELIM+size_b0+size_b1-monitor_flash_len, FLASH_BASE0_PRELIM+size_b0+size_b1-1, &flash_info[1]); /* monitor protection OFF by default (one is enough) */ flash_protect(FLAG_PROTECT_CLEAR, FLASH_BASE0_PRELIM+size_b0-monitor_flash_len, FLASH_BASE0_PRELIM+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; return (size_b0 + size_b1); }