Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 1 | /* |
| 2 | * adapted from the Intel FW hub stuff for 82802ax parts. |
| 3 | * |
| 4 | * |
| 5 | * Copyright 2000 Silicon Integrated System Corporation |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 20 | * |
| 21 | * |
| 22 | * $Id$ |
| 23 | */ |
| 24 | |
| 25 | #include <errno.h> |
| 26 | #include <fcntl.h> |
| 27 | #include <sys/mman.h> |
| 28 | #include <sys/io.h> |
| 29 | #include <unistd.h> |
| 30 | #include <stdio.h> |
| 31 | #include <stdlib.h> |
| 32 | |
| 33 | #include "flash.h" |
| 34 | #include "jedec.h" |
| 35 | #include "sst_fwhub.h" |
| 36 | |
| 37 | // I need that Berkeley bit-map printer |
| 38 | void print_sst_fwhub_status(unsigned char status) |
| 39 | { |
| 40 | printf("%s", status & 0x80 ? "Ready:" : "Busy:"); |
| 41 | printf("%s", status & 0x40 ? "BE SUSPEND:" : "BE RUN/FINISH:"); |
| 42 | printf("%s", status & 0x20 ? "BE ERROR:" : "BE OK:"); |
| 43 | printf("%s", status & 0x10 ? "PROG ERR:" : "PROG OK:"); |
| 44 | printf("%s", status & 0x8 ? "VP ERR:" : "VPP OK:"); |
| 45 | printf("%s", status & 0x4 ? "PROG SUSPEND:" : "PROG RUN/FINISH:"); |
| 46 | printf("%s", status & 0x2 ? "WP|TBL#|WP#,ABORT:" : "UNLOCK:"); |
| 47 | } |
| 48 | |
| 49 | /* probe_jedec works fine for probing */ |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 50 | int probe_sst_fwhub(struct flashchip *flash) |
| 51 | { |
Ollie Lho | efa2858 | 2004-12-08 20:10:01 +0000 | [diff] [blame] | 52 | volatile unsigned char *bios; |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 53 | size_t size = flash->total_size * 1024; |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 54 | |
Ollie Lho | efa2858 | 2004-12-08 20:10:01 +0000 | [diff] [blame] | 55 | if (probe_jedec(flash) == 0) |
Ollie Lho | 98bea8a | 2004-12-07 03:15:51 +0000 | [diff] [blame] | 56 | return 0; |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 57 | |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 58 | bios = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED, |
Ollie Lho | 1b8b660 | 2004-12-08 02:10:33 +0000 | [diff] [blame] | 59 | flash->fd_mem, (off_t) (0xFFFFFFFF - 0x400000 - size + 1)); |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 60 | if (bios == MAP_FAILED) { |
Ollie Lho | 98bea8a | 2004-12-07 03:15:51 +0000 | [diff] [blame] | 61 | // it's this part but we can't map it ... |
| 62 | perror("Error MMAP /dev/mem"); |
| 63 | exit(1); |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 64 | } |
| 65 | |
| 66 | flash->virt_addr_2 = bios; |
| 67 | return 1; |
| 68 | } |
| 69 | |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 70 | int erase_sst_fwhub_block(struct flashchip *flash, int offset) |
| 71 | { |
Ollie Lho | 1b8b660 | 2004-12-08 02:10:33 +0000 | [diff] [blame] | 72 | volatile unsigned char *wrprotect = flash->virt_addr_2 + offset + 2; |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 73 | |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 74 | // clear write protect |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 75 | *(wrprotect) = 0; |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 76 | |
| 77 | erase_block_jedec(flash->virt_addr, offset); |
Ollie Lho | efa2858 | 2004-12-08 20:10:01 +0000 | [diff] [blame] | 78 | toggle_ready_jedec(flash->virt_addr); |
Ollie Lho | 1b8b660 | 2004-12-08 02:10:33 +0000 | [diff] [blame] | 79 | |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 80 | return (0); |
| 81 | } |
| 82 | |
| 83 | int erase_sst_fwhub(struct flashchip *flash) |
| 84 | { |
| 85 | int i; |
| 86 | unsigned int total_size = flash->total_size * 1024; |
| 87 | |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 88 | for (i = 0; i < total_size; i += flash->page_size) |
| 89 | erase_sst_fwhub_block(flash, i); |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 90 | return (0); |
| 91 | } |
| 92 | |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 93 | int write_sst_fwhub(struct flashchip *flash, unsigned char *buf) |
| 94 | { |
| 95 | int i; |
| 96 | int total_size = flash->total_size * 1024, page_size = |
| 97 | flash->page_size; |
| 98 | volatile unsigned char *bios = flash->virt_addr; |
| 99 | |
| 100 | erase_sst_fwhub(flash); |
| 101 | if (*bios != 0xff) { |
| 102 | printf("ERASE FAILED\n"); |
| 103 | return -1; |
| 104 | } |
| 105 | printf("Programming Page: "); |
| 106 | for (i = 0; i < total_size / page_size; i++) { |
| 107 | printf("%04d at address: 0x%08x", i, i * page_size); |
Ollie Lho | efa2858 | 2004-12-08 20:10:01 +0000 | [diff] [blame] | 108 | write_sector_jedec(bios, buf + i * page_size, |
| 109 | bios + i * page_size, page_size); |
Ollie Lho | 1b8b660 | 2004-12-08 02:10:33 +0000 | [diff] [blame] | 110 | 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"); |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 111 | } |
| 112 | printf("\n"); |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 113 | return (0); |
| 114 | } |