diff options
author | Stefan Reinauer <stepan@openbios.org> | 2005-11-24 10:45:34 +0000 |
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committer | Stefan Reinauer <stepan@openbios.org> | 2005-11-24 10:45:34 +0000 |
commit | 7d5c7a7f1794cf846f2b62813c81f0f2a0ac5b54 (patch) | |
tree | 3ea89e5f20c249f3c0c8f31408577d3141214d3a /util/flashrom/sst_fwhub.c | |
parent | e0e137844adc8366de58514b10ed962da46ce77b (diff) |
rename the directory to match the program name
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2102 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'util/flashrom/sst_fwhub.c')
-rw-r--r-- | util/flashrom/sst_fwhub.c | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/util/flashrom/sst_fwhub.c b/util/flashrom/sst_fwhub.c new file mode 100644 index 0000000000..c064ed661b --- /dev/null +++ b/util/flashrom/sst_fwhub.c @@ -0,0 +1,114 @@ +/* + * adapted from the Intel FW hub stuff for 82802ax parts. + * + * + * 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. + * + * + * $Id$ + */ + +#include <errno.h> +#include <fcntl.h> +#include <sys/mman.h> +#include <sys/io.h> +#include <unistd.h> +#include <stdio.h> +#include <stdlib.h> + +#include "flash.h" +#include "jedec.h" +#include "sst_fwhub.h" + +// I need that Berkeley bit-map printer +void print_sst_fwhub_status(unsigned char status) +{ + printf("%s", status & 0x80 ? "Ready:" : "Busy:"); + printf("%s", status & 0x40 ? "BE SUSPEND:" : "BE RUN/FINISH:"); + printf("%s", status & 0x20 ? "BE ERROR:" : "BE OK:"); + printf("%s", status & 0x10 ? "PROG ERR:" : "PROG OK:"); + printf("%s", status & 0x8 ? "VP ERR:" : "VPP OK:"); + printf("%s", status & 0x4 ? "PROG SUSPEND:" : "PROG RUN/FINISH:"); + printf("%s", status & 0x2 ? "WP|TBL#|WP#,ABORT:" : "UNLOCK:"); +} + +/* probe_jedec works fine for probing */ +int probe_sst_fwhub(struct flashchip *flash) +{ + volatile unsigned char *bios; + size_t size = flash->total_size * 1024; + + if (probe_jedec(flash) == 0) + return 0; + + bios = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED, + flash->fd_mem, (off_t) (0xFFFFFFFF - 0x400000 - size + 1)); + if (bios == MAP_FAILED) { + // it's this part but we can't map it ... + perror("Error MMAP /dev/mem"); + exit(1); + } + + flash->virt_addr_2 = bios; + return 1; +} + +int erase_sst_fwhub_block(struct flashchip *flash, int offset) +{ + volatile unsigned char *wrprotect = flash->virt_addr_2 + offset + 2; + + // clear write protect + *(wrprotect) = 0; + + erase_block_jedec(flash->virt_addr, offset); + toggle_ready_jedec(flash->virt_addr); + + return (0); +} + +int erase_sst_fwhub(struct flashchip *flash) +{ + int i; + unsigned int total_size = flash->total_size * 1024; + + for (i = 0; i < total_size; i += flash->page_size) + erase_sst_fwhub_block(flash, i); + return (0); +} + +int write_sst_fwhub(struct flashchip *flash, unsigned char *buf) +{ + int i; + int total_size = flash->total_size * 1024, page_size = + flash->page_size; + volatile unsigned char *bios = flash->virt_addr; + + erase_sst_fwhub(flash); + if (*bios != 0xff) { + printf("ERASE FAILED\n"); + return -1; + } + printf("Programming Page: "); + for (i = 0; i < total_size / page_size; i++) { + printf("%04d at address: 0x%08x", i, i * page_size); + write_sector_jedec(bios, buf + i * page_size, + bios + i * page_size, page_size); + printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"); + } + printf("\n"); + return (0); +} |