/* * (C) Copyright 2006 * Stefan Roese, DENX Software Engineering, sr@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 */ #include <common.h> #include <asm/arch/ixp425.h> #if !defined(CONFIG_FLASH_CFI_DRIVER) /* * include common flash code (for esd boards) */ #include "../common/flash.c" /* * Prototypes */ static ulong flash_get_size (vu_long * addr, flash_info_t * info); static inline ulong ld(ulong x) { ulong k = 0; while (x >>= 1) ++k; return k; } unsigned long flash_init(void) { unsigned long size; int i; /* Init: no FLASHes known */ for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; i++) flash_info[i].flash_id = FLASH_UNKNOWN; size = 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, size<<20); /* Reconfigure CS0 to actual FLASH size */ *IXP425_EXP_CS0 = (*IXP425_EXP_CS0 & ~0x00003C00) | ((ld(size) - 9) << 10); /* Monitor protection ON by default */ flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_MONITOR_BASE, CONFIG_SYS_MONITOR_BASE + monitor_flash_len - 1, &flash_info[CONFIG_SYS_MAX_FLASH_BANKS - 1]); /* Environment protection ON by default */ flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR, CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1, &flash_info[CONFIG_SYS_MAX_FLASH_BANKS - 1]); /* Redundant environment protection ON by default */ flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR_REDUND, CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1, &flash_info[CONFIG_SYS_MAX_FLASH_BANKS - 1]); flash_info[0].size = size; return size; } #endif /* CONFIG_FLASH_CFI_DRIVER */