diff options
Diffstat (limited to 'src/mainboard/motorola/sandpoint/flash/amd800.c')
| -rw-r--r-- | src/mainboard/motorola/sandpoint/flash/amd800.c | 244 |
1 files changed, 0 insertions, 244 deletions
diff --git a/src/mainboard/motorola/sandpoint/flash/amd800.c b/src/mainboard/motorola/sandpoint/flash/amd800.c deleted file mode 100644 index fe62b78004..0000000000 --- a/src/mainboard/motorola/sandpoint/flash/amd800.c +++ /dev/null @@ -1,244 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2000 AG Electronics Ltd. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <console/console.h> -#include <stdlib.h> -#include "../flash.h" - -struct data_amd800 -{ - unsigned base; - unsigned spacing; - unsigned cs; - const char *tag; -}; - -static const char *identify_amd (struct flash_device *flash_device); -static int erase_flash_amd800 (void *data, unsigned offset, unsigned length); -static int program_flash_amd800 (void *data, unsigned offset, const void *source, - unsigned length); -static uint8_t read_byte_amd800(void *data, unsigned offset); - -static flash_fn fn_amd800 = { - identify_amd, - 0, - 0, - erase_flash_amd800, - program_flash_amd800, - read_byte_amd800 -}; - -const char *identify_amd (struct flash_device *flash_device) -{ - struct data_amd800 *d800 = flash_device->data; - - if (!d800->tag) - { - volatile unsigned char *flash = - - (volatile unsigned char *) d800->base; - unsigned char type, - id; - - *(flash + 0xaaa * d800->spacing) = 0xaa; - *(flash + 0x555 * d800->spacing) = 0x55; - *(flash + 0xaaa * d800->spacing) = 0x90; - type = *(flash + 2 * d800->spacing); - id = *flash; - *flash = 0xf0; - if ((id == 1 || id == 0x20) && type == 0x5b) - { - d800->cs = 45; - d800->tag = "Am29LV800BB"; - flash_device->base = d800->base; - flash_device->size = 1024*1024; - flash_device->erase_size = 64*1024; - flash_device->store_size = 1; - } - else - { - printk_info("Unknown flash ID: 0x%02x 0x%02x\n", id, type); - } - } - return d800->tag; -} - -int erase_flash_amd800 (void *data, unsigned offset, unsigned length) -{ - struct data_amd800 *d800 = data; - volatile unsigned char *flash = (volatile unsigned char *) d800->base; - volatile unsigned char *flash_aaa = flash + 0xaaa * d800->spacing; - volatile unsigned char *flash_555 = flash + 0x555 * d800->spacing; - int id; - int cs = 9999; - - printk_info("Erase from 0x%08x to 0x%08x\n", offset, offset + length); - *flash_aaa = 0xAA; // Chip Erase - *flash_555 = 0x55; - *flash_aaa = 0x80; - *flash_aaa = 0xAA; - *flash_555 = 0x55; - *flash_aaa = 0x10; - - for (; cs > 0; cs--) - { - id = *(flash + 16); - if (id & 0xA0) // DQ7 or DQ5 set: done or error - break; - printk_info("%4d\b\b\b\b", cs); - } - - *flash_aaa = 0xF0; // In case of error - - printk_info("\b\b\b\b \b\b\b\b"); - if (cs == 0) - { - printk_info("Could not erase flash, timeout.\n"); - return -1; - } - else if ((id & 0x80) == 0) - { - printk_info("Could not erase flash, status=%02x.\n", id); - return -1; - } - printk_info("Flash erased\n"); - return 0; -} - -int init_flash_amd800 (char *tag, unsigned base, unsigned spacing) -{ - struct data_amd800 *data = malloc (sizeof (struct data_amd800)); - - if (data) - { - data->base = base; - data->spacing = spacing; - data->tag = 0; - if (register_flash_device (&fn_amd800, tag, data) < 0) - { - free (data); - return -1; - } - } - else - return -1; - return 0; -} - -int program_flash_amd800 (void *data, unsigned offset, const void *source, - unsigned length) -{ - struct data_amd800 *d800 = data; - volatile unsigned char *flash = (volatile unsigned char *) d800->base; - volatile unsigned char *flash_aaa = flash + 0xaaa * d800->spacing; - volatile unsigned char *flash_555 = flash + 0x555 * d800->spacing; - int id = 0; - int cs; - int errs = 0; - volatile char *s; - volatile char *d; - - printk_info("Program from 0x%08x to 0x%08x\n", offset, offset + length); - printk_info("Data at %p\n", source); - - *flash_aaa = 0xAA; // Unlock Bypass - *flash_555 = 0x55; - *flash_aaa = 0x20; - - s = (unsigned char *) source; - d = flash + offset * d800->spacing; - cs = length; - - while (cs > 0 && !errs) - { - *flash = 0xA0; // Unlock Bypass Program - *d = *s; // Program data - - while (1) - { - id = *d; - if ((id & 0x80) == (*s & 0x80)) // DQ7 right? => program done - break; - else if (id & 0x20) - { // DQ5 set? => maybe errors - id = *d; - if ((id & 0x80) != (*s & 0x80)) - { - errs++; - break; - } - } - } - - // PRINT("Set %08lx = %02x\n", d, *d); - - s += 1; - d += d800->spacing; - cs--; - } - - *flash = 0x90; // Unlock Bypass Program Reset - *flash = 0x00; - *flash = 0xF0; - - if (errs != 0) - { - printk_info("FAIL: Status=%02x Address=%p.\n", id, d - d800->spacing); - return -1; - } - printk_info("OK.\n"); - - - // Step 4: Verify the flash. - - printk_info(" Verifying flash : ..."); - errs = 0; - s = (unsigned char *) source; - d = flash + offset * d800->spacing; - for (cs = 0; cs < length; cs++) - { - if (*s != *d) - { - if (errs == 0) - printk_info("ERROR: Addr: %08p, PCI: %02x Lcl: %02x.\n", - s, *s, *d); - errs++; - } - s += 1; - d += d800->spacing; - } - - if (errs == 0) - printk_info("OK.\n"); - else - { - printk_info(" FAIL: %d errors.\n", errs); - return -1; - } - - return 0; -} - -uint8_t read_byte_amd800 (void *data, unsigned offset) -{ - struct data_amd800 *d800 = data; - volatile unsigned char *flash = (volatile unsigned char *) d800->base; - return *(flash + offset * d800->spacing); -} - |