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author | Ronald G. Minnich <rminnich@gmail.com> | 2002-01-29 18:26:01 +0000 |
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committer | Ronald G. Minnich <rminnich@gmail.com> | 2002-01-29 18:26:01 +0000 |
commit | fb331567e939210c728149feb6aa0b29cf702ef4 (patch) | |
tree | acf581fd622fbde1da7c46301090fd2f28085a41 /flash_rom.c | |
parent | 5e5f75e559f605974afd3767bc650a1cc0ed6f1f (diff) | |
download | flashrom-fb331567e939210c728149feb6aa0b29cf702ef4.tar.gz flashrom-fb331567e939210c728149feb6aa0b29cf702ef4.tar.bz2 flashrom-fb331567e939210c728149feb6aa0b29cf702ef4.zip |
Dammit
Corresponding to coreboot v1 svn r490.
Diffstat (limited to 'flash_rom.c')
-rw-r--r-- | flash_rom.c | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/flash_rom.c b/flash_rom.c deleted file mode 100644 index 12aa2733..00000000 --- a/flash_rom.c +++ /dev/null @@ -1,196 +0,0 @@ -/* - * flash_rom.c: Flash programming utility for SiS 630/950 M/Bs - * - * - * Copyright 2000 Silicon Integrated System Corporation - * - * 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., 675 Mass Ave, Cambridge, MA 02139, USA. - * - * - * Reference: - * 1. SiS 630 Specification - * 2. SiS 950 Specification - * - * $Id$ - */ - -#include <errno.h> -#include <fcntl.h> -#include <sys/mman.h> -#include <sys/io.h> -#include <unistd.h> -#include <stdio.h> - -#include "flash.h" -#include "jedec.h" - -struct flashchip flashchips[] = { - {"Am29F040B", AMD_ID, AM_29F040B, NULL, 512, 64*1024, - probe_29f040b, erase_29f040b, write_29f040b}, - {"At29C040A", ATMEL_ID, AT_29C040A, NULL, 512, 256, - probe_jedec, erase_jedec, write_jedec}, - {"Mx29f002", MX_ID, MX_29F002, NULL, 256, 64*1024, - probe_29f002, erase_29f002, write_29f002}, - {"SST29EE020A", SST_ID, SST_29EE020A, NULL, 256, 128, - probe_jedec, erase_jedec, write_jedec}, - {"SST28SF040A", SST_ID, SST_28SF040, NULL, 512, 256, - probe_28sf040, erase_28sf040, write_28sf040}, - {"W29C020C", WINBOND_ID, W_29C020C, NULL, 256, 128, - probe_jedec, erase_jedec, write_jedec}, - {NULL,} -}; - -int enable_flash_sis630 (void) -{ - char b; - - /* get io privilege access PCI configuration space */ - if (iopl(3) != 0) { - perror("Can not set io priviliage"); - exit(1); - } - - /* Enable 0xFFF8000~0xFFFF0000 decoding on SiS 540/630 */ - outl(0x80000840, 0x0cf8); - b = inb(0x0cfc) | 0x0b; - outb(b, 0xcfc); - /* Flash write enable on SiS 540/630 */ - outl(0x80000845, 0x0cf8); - b = inb(0x0cfd) | 0x40; - outb(b, 0xcfd); - - /* The same thing on SiS 950 SuperIO side */ - outb(0x87, 0x2e); - outb(0x01, 0x2e); - outb(0x55, 0x2e); - outb(0x55, 0x2e); - - if (inb(0x2f) != 0x87) { - outb(0x87, 0x4e); - outb(0x01, 0x4e); - outb(0x55, 0x4e); - outb(0xaa, 0x4e); - if (inb(0x4f) != 0x87) { - printf("Can not access SiS 950\n"); - return -1; - } - outb(0x24, 0x4e); - b = inb(0x4f) | 0xfc; - outb(0x24, 0x4e); - outb(b, 0x4f); - outb(0x02, 0x4e); - outb(0x02, 0x4f); - } - - outb(0x24, 0x2e); - printf("2f is %#x\n", inb(0x2f)); - b = inb(0x2f) | 0xfc; - outb(0x24, 0x2e); - outb(b, 0x2f); - - outb(0x02, 0x2e); - outb(0x02, 0x2f); - - return 0; -} - -struct flashchip * probe_flash(struct flashchip * flash) -{ - int fd_mem; - char * bios; - unsigned long size; - - if ((fd_mem = open("/dev/mem", O_RDWR)) < 0) { - perror("Can not open /dev/mem"); - exit(1); - } - - while (flash->name != NULL) { - size = flash->total_size * 1024; - bios = mmap (0, size, PROT_WRITE | PROT_READ, MAP_SHARED, - fd_mem, (off_t) (0 - size)); - if (bios == MAP_FAILED) { - perror("Error MMAP /dev/mem"); - exit(1); - } - flash->virt_addr = bios; - - if (flash->probe(flash) == 1) { - printf ("%s found at physical address: 0x%lx\n", - flash->name, (0 - size), bios); - return flash; - } - munmap (bios, size); - flash++; - } - return NULL; -} - -int verify_flash (struct flashchip * flash, char * buf) -{ - int i = 0; - int total_size = flash->total_size *1024; - char * bios = flash->virt_addr; - - printf("Verifying address: "); - while (i++ < total_size) { - printf("0x%08x", i); - if (*(bios+i) != *(buf+i)) { - return 0; - } - printf("\b\b\b\b\b\b\b\b\b\b"); - } - printf("\n"); - return 1; -} - -main (int argc, char * argv[]) -{ - char * buf; - unsigned long size; - FILE * image; - struct flashchip * flash; - - if (argc > 2){ - printf("usage: %s [romimage]\n", argv[0]); - printf(" If no romimage is specified, then all that happens\n"); - printf(" is that flash writes are enabled (useful for DoC)\n"); - exit(1); - } - - enable_flash_sis630 (); - - if ((flash = probe_flash (flashchips)) == NULL) { - printf("EEPROM not found\n"); - exit(1); - } - - if (argc < 2){ - printf("OK, only ENABLING flash write, but NOT FLASHING\n"); - exit(0); - } - size = flash->total_size * 1024; - - if ((image = fopen (argv[1], "r")) == NULL) { - perror("Error opening image file"); - exit(1); - } - - buf = (char *) calloc (size, sizeof(char)); - fread (buf, sizeof(char), size, image); - - flash->write (flash, buf); - verify_flash (flash, buf); -} |