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Diffstat (limited to 'board/esd/adciop/flash.c')
| -rw-r--r-- | board/esd/adciop/flash.c | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/board/esd/adciop/flash.c b/board/esd/adciop/flash.c new file mode 100644 index 0000000..46ae03b --- /dev/null +++ b/board/esd/adciop/flash.c @@ -0,0 +1,113 @@ +/* + * (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-CFG_MONITOR_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-CFG_MONITOR_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-CFG_MONITOR_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); +} |