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 */ |
| 50 | |
| 51 | int probe_sst_fwhub(struct flashchip *flash) |
| 52 | { |
| 53 | volatile unsigned char *bios = flash->virt_addr; |
| 54 | unsigned char id1, id2; |
| 55 | size_t size = flash->total_size * 1024; |
| 56 | /* Issue JEDEC Product ID Entry command */ |
| 57 | *(volatile char *) (bios + 0x5555) = 0xAA; |
| 58 | myusec_delay(10); |
| 59 | *(volatile char *) (bios + 0x2AAA) = 0x55; |
| 60 | myusec_delay(10); |
| 61 | *(volatile char *) (bios + 0x5555) = 0x90; |
| 62 | myusec_delay(10); |
| 63 | |
| 64 | /* Read product ID */ |
| 65 | id1 = *(volatile unsigned char *) bios; |
| 66 | id2 = *(volatile unsigned char *) (bios + 0x01); |
| 67 | |
| 68 | /* Issue JEDEC Product ID Exit command */ |
| 69 | *(volatile char *) (bios + 0x5555) = 0xAA; |
| 70 | myusec_delay(10); |
| 71 | *(volatile char *) (bios + 0x2AAA) = 0x55; |
| 72 | myusec_delay(10); |
| 73 | *(volatile char *) (bios + 0x5555) = 0xF0; |
| 74 | myusec_delay(10); |
| 75 | |
| 76 | printf("%s: id1 0x%x, id2 0x%x\n", __FUNCTION__, id1, id2); |
| 77 | if (id1 != flash->manufacture_id || id2 != flash->model_id) |
Ollie Lho | 98bea8a | 2004-12-07 03:15:51 +0000 | [diff] [blame] | 78 | return 0; |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 79 | |
| 80 | myusec_delay(10); |
| 81 | |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 82 | bios = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED, |
Ollie Lho | 1b8b660 | 2004-12-08 02:10:33 +0000 | [diff] [blame^] | 83 | flash->fd_mem, (off_t) (0xFFFFFFFF - 0x400000 - size + 1)); |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 84 | if (bios == MAP_FAILED) { |
Ollie Lho | 98bea8a | 2004-12-07 03:15:51 +0000 | [diff] [blame] | 85 | // it's this part but we can't map it ... |
| 86 | perror("Error MMAP /dev/mem"); |
| 87 | exit(1); |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 88 | } |
| 89 | |
| 90 | flash->virt_addr_2 = bios; |
| 91 | return 1; |
| 92 | } |
| 93 | |
| 94 | unsigned char wait_sst_fwhub(volatile unsigned char *bios) |
| 95 | { |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 96 | toggle_ready_jedec(bios); |
| 97 | return 0; |
| 98 | } |
| 99 | |
| 100 | int erase_sst_fwhub_block(struct flashchip *flash, int offset) |
| 101 | { |
Ollie Lho | 1b8b660 | 2004-12-08 02:10:33 +0000 | [diff] [blame^] | 102 | volatile unsigned char *wrprotect = flash->virt_addr_2 + offset + 2; |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 103 | unsigned char status; |
| 104 | |
Ollie Lho | 1b8b660 | 2004-12-08 02:10:33 +0000 | [diff] [blame^] | 105 | //printf("Erase at %p\n", bios); |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 106 | // clear write protect |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 107 | *(wrprotect) = 0; |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 108 | |
| 109 | erase_block_jedec(flash->virt_addr, offset); |
| 110 | status = wait_sst_fwhub(flash->virt_addr); |
Ollie Lho | 1b8b660 | 2004-12-08 02:10:33 +0000 | [diff] [blame^] | 111 | |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 112 | return (0); |
| 113 | } |
| 114 | |
| 115 | int erase_sst_fwhub(struct flashchip *flash) |
| 116 | { |
| 117 | int i; |
| 118 | unsigned int total_size = flash->total_size * 1024; |
| 119 | |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 120 | for (i = 0; i < total_size; i += flash->page_size) |
| 121 | erase_sst_fwhub_block(flash, i); |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 122 | return (0); |
| 123 | } |
| 124 | |
Ollie Lho | 98bea8a | 2004-12-07 03:15:51 +0000 | [diff] [blame] | 125 | void write_page_sst_fwhub(volatile char *bios, char *src, |
| 126 | volatile char *dst, int page_size) |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 127 | { |
| 128 | int i; |
| 129 | |
| 130 | for (i = 0; i < page_size; i++) { |
| 131 | /* transfer data from source to destination */ |
Ollie Lho | 98bea8a | 2004-12-07 03:15:51 +0000 | [diff] [blame] | 132 | write_byte_program_jedec(bios, src, dst); |
| 133 | src++; |
| 134 | dst++; |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 135 | } |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 136 | } |
| 137 | |
| 138 | int write_sst_fwhub(struct flashchip *flash, unsigned char *buf) |
| 139 | { |
| 140 | int i; |
| 141 | int total_size = flash->total_size * 1024, page_size = |
| 142 | flash->page_size; |
| 143 | volatile unsigned char *bios = flash->virt_addr; |
| 144 | |
| 145 | erase_sst_fwhub(flash); |
| 146 | if (*bios != 0xff) { |
| 147 | printf("ERASE FAILED\n"); |
| 148 | return -1; |
| 149 | } |
| 150 | printf("Programming Page: "); |
| 151 | for (i = 0; i < total_size / page_size; i++) { |
| 152 | printf("%04d at address: 0x%08x", i, i * page_size); |
| 153 | write_page_sst_fwhub(bios, buf + i * page_size, |
Ollie Lho | 98bea8a | 2004-12-07 03:15:51 +0000 | [diff] [blame] | 154 | bios + i * page_size, page_size); |
Ollie Lho | 1b8b660 | 2004-12-08 02:10:33 +0000 | [diff] [blame^] | 155 | 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] | 156 | } |
| 157 | printf("\n"); |
Ronald G. Minnich | 1f4d653 | 2004-09-30 16:37:01 +0000 | [diff] [blame] | 158 | return (0); |
| 159 | } |