Ronald G. Minnich | 5b582f2 | 2006-02-23 17:16:44 +0000 | [diff] [blame] | 1 | /* |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 2 | * lhf00l04.c: driver for programming JEDEC standard flash parts |
Ronald G. Minnich | 5b582f2 | 2006-02-23 17:16:44 +0000 | [diff] [blame] | 3 | * |
| 4 | * |
| 5 | * Copyright 2000 Silicon Integrated System Corporation |
Ronald G. Minnich | 5b582f2 | 2006-02-23 17:16:44 +0000 | [diff] [blame] | 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 | * |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 22 | * Reference: http://www.intel.com/design/chipsets/datashts/290658.htm |
Ronald G. Minnich | 5b582f2 | 2006-02-23 17:16:44 +0000 | [diff] [blame] | 23 | */ |
| 24 | |
| 25 | #include <stdio.h> |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 26 | #include <stdlib.h> |
Ronald G. Minnich | 5b582f2 | 2006-02-23 17:16:44 +0000 | [diff] [blame] | 27 | #include "flash.h" |
Ronald G. Minnich | 5b582f2 | 2006-02-23 17:16:44 +0000 | [diff] [blame] | 28 | |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 29 | // I need that Berkeley bit-map printer |
| 30 | void print_lhf00l04_status(uint8_t status) |
Ronald G. Minnich | 5b582f2 | 2006-02-23 17:16:44 +0000 | [diff] [blame] | 31 | { |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 32 | printf("%s", status & 0x80 ? "Ready:" : "Busy:"); |
| 33 | printf("%s", status & 0x40 ? "BE SUSPEND:" : "BE RUN/FINISH:"); |
| 34 | printf("%s", status & 0x20 ? "BE ERROR:" : "BE OK:"); |
| 35 | printf("%s", status & 0x10 ? "PROG ERR:" : "PROG OK:"); |
| 36 | printf("%s", status & 0x8 ? "VP ERR:" : "VPP OK:"); |
| 37 | printf("%s", status & 0x4 ? "PROG SUSPEND:" : "PROG RUN/FINISH:"); |
| 38 | printf("%s", status & 0x2 ? "WP|TBL#|WP#,ABORT:" : "UNLOCK:"); |
Ronald G. Minnich | 5b582f2 | 2006-02-23 17:16:44 +0000 | [diff] [blame] | 39 | } |
| 40 | |
| 41 | int probe_lhf00l04(struct flashchip *flash) |
| 42 | { |
Stefan Reinauer | ce53297 | 2007-05-23 17:20:56 +0000 | [diff] [blame] | 43 | volatile uint8_t *bios = flash->virtual_memory; |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 44 | uint8_t id1, id2; |
Ronald G. Minnich | 5b582f2 | 2006-02-23 17:16:44 +0000 | [diff] [blame] | 45 | |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 46 | #if 0 |
Stefan Reinauer | ce53297 | 2007-05-23 17:20:56 +0000 | [diff] [blame] | 47 | /* Enter ID mode */ |
Uwe Hermann | a7e0548 | 2007-05-09 10:17:44 +0000 | [diff] [blame] | 48 | *(volatile uint8_t *)(bios + 0x5555) = 0xAA; |
| 49 | *(volatile uint8_t *)(bios + 0x2AAA) = 0x55; |
| 50 | *(volatile uint8_t *)(bios + 0x5555) = 0x90; |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 51 | #endif |
Ronald G. Minnich | 5b582f2 | 2006-02-23 17:16:44 +0000 | [diff] [blame] | 52 | |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 53 | *bios = 0xff; |
| 54 | myusec_delay(10); |
| 55 | *bios = 0x90; |
Ronald G. Minnich | 5b582f2 | 2006-02-23 17:16:44 +0000 | [diff] [blame] | 56 | myusec_delay(10); |
| 57 | |
Uwe Hermann | a7e0548 | 2007-05-09 10:17:44 +0000 | [diff] [blame] | 58 | id1 = *(volatile uint8_t *)bios; |
| 59 | id2 = *(volatile uint8_t *)(bios + 0x01); |
Ronald G. Minnich | 5b582f2 | 2006-02-23 17:16:44 +0000 | [diff] [blame] | 60 | |
Stefan Reinauer | ce53297 | 2007-05-23 17:20:56 +0000 | [diff] [blame] | 61 | /* Leave ID mode */ |
Uwe Hermann | a7e0548 | 2007-05-09 10:17:44 +0000 | [diff] [blame] | 62 | *(volatile uint8_t *)(bios + 0x5555) = 0xAA; |
| 63 | *(volatile uint8_t *)(bios + 0x2AAA) = 0x55; |
| 64 | *(volatile uint8_t *)(bios + 0x5555) = 0xF0; |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 65 | |
Ronald G. Minnich | 5b582f2 | 2006-02-23 17:16:44 +0000 | [diff] [blame] | 66 | myusec_delay(10); |
| 67 | |
| 68 | printf_debug("%s: id1 0x%x, id2 0x%x\n", __FUNCTION__, id1, id2); |
Ronald G. Minnich | 5b582f2 | 2006-02-23 17:16:44 +0000 | [diff] [blame] | 69 | |
Uwe Hermann | a880885 | 2007-05-24 19:17:29 +0000 | [diff] [blame] | 70 | if (id1 != flash->manufacture_id || id2 != flash->model_id) |
Stefan Reinauer | ff4f197 | 2007-05-24 08:48:10 +0000 | [diff] [blame] | 71 | return 0; |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 72 | |
Stefan Reinauer | ff4f197 | 2007-05-24 08:48:10 +0000 | [diff] [blame] | 73 | map_flash_registers(flash); |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 74 | |
Stefan Reinauer | ff4f197 | 2007-05-24 08:48:10 +0000 | [diff] [blame] | 75 | return 1; |
Ronald G. Minnich | 5b582f2 | 2006-02-23 17:16:44 +0000 | [diff] [blame] | 76 | } |
| 77 | |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 78 | uint8_t wait_lhf00l04(volatile uint8_t *bios) |
| 79 | { |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 80 | uint8_t status; |
| 81 | uint8_t id1, id2; |
| 82 | |
| 83 | *bios = 0x70; |
| 84 | if ((*bios & 0x80) == 0) { // it's busy |
Uwe Hermann | a7e0548 | 2007-05-09 10:17:44 +0000 | [diff] [blame] | 85 | while ((*bios & 0x80) == 0) ; |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 86 | } |
| 87 | |
| 88 | status = *bios; |
| 89 | |
| 90 | // put another command to get out of status register mode |
| 91 | |
| 92 | *bios = 0x90; |
| 93 | myusec_delay(10); |
| 94 | |
Uwe Hermann | a7e0548 | 2007-05-09 10:17:44 +0000 | [diff] [blame] | 95 | id1 = *(volatile uint8_t *)bios; |
| 96 | id2 = *(volatile uint8_t *)(bios + 0x01); |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 97 | |
| 98 | // this is needed to jam it out of "read id" mode |
Uwe Hermann | a7e0548 | 2007-05-09 10:17:44 +0000 | [diff] [blame] | 99 | *(volatile uint8_t *)(bios + 0x5555) = 0xAA; |
| 100 | *(volatile uint8_t *)(bios + 0x2AAA) = 0x55; |
| 101 | *(volatile uint8_t *)(bios + 0x5555) = 0xF0; |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 102 | |
Uwe Hermann | ffec5f3 | 2007-08-23 16:08:21 +0000 | [diff] [blame^] | 103 | return status; |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 104 | } |
Uwe Hermann | ffec5f3 | 2007-08-23 16:08:21 +0000 | [diff] [blame^] | 105 | |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 106 | int erase_lhf00l04_block(struct flashchip *flash, int offset) |
| 107 | { |
Stefan Reinauer | ce53297 | 2007-05-23 17:20:56 +0000 | [diff] [blame] | 108 | volatile uint8_t *bios = flash->virtual_memory + offset; |
| 109 | volatile uint8_t *wrprotect = flash->virtual_registers + offset + 2; |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 110 | uint8_t status; |
| 111 | |
| 112 | // clear status register |
| 113 | *bios = 0x50; |
| 114 | printf("Erase at %p\n", bios); |
Stefan Reinauer | ce53297 | 2007-05-23 17:20:56 +0000 | [diff] [blame] | 115 | status = wait_lhf00l04(flash->virtual_memory); |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 116 | print_lhf00l04_status(status); |
| 117 | // clear write protect |
| 118 | printf("write protect is at %p\n", (wrprotect)); |
| 119 | printf("write protect is 0x%x\n", *(wrprotect)); |
| 120 | *(wrprotect) = 0; |
| 121 | printf("write protect is 0x%x\n", *(wrprotect)); |
| 122 | |
| 123 | // now start it |
Uwe Hermann | a7e0548 | 2007-05-09 10:17:44 +0000 | [diff] [blame] | 124 | *(volatile uint8_t *)(bios) = 0x20; |
| 125 | *(volatile uint8_t *)(bios) = 0xd0; |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 126 | myusec_delay(10); |
| 127 | // now let's see what the register is |
Stefan Reinauer | ce53297 | 2007-05-23 17:20:56 +0000 | [diff] [blame] | 128 | status = wait_lhf00l04(flash->virtual_memory); |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 129 | print_lhf00l04_status(status); |
| 130 | printf("DONE BLOCK 0x%x\n", offset); |
Uwe Hermann | ffec5f3 | 2007-08-23 16:08:21 +0000 | [diff] [blame^] | 131 | |
| 132 | return 0; |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 133 | } |
Uwe Hermann | ffec5f3 | 2007-08-23 16:08:21 +0000 | [diff] [blame^] | 134 | |
Ronald G. Minnich | 5b582f2 | 2006-02-23 17:16:44 +0000 | [diff] [blame] | 135 | int erase_lhf00l04(struct flashchip *flash) |
| 136 | { |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 137 | int i; |
| 138 | unsigned int total_size = flash->total_size * 1024; |
Ronald G. Minnich | 5b582f2 | 2006-02-23 17:16:44 +0000 | [diff] [blame] | 139 | |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 140 | printf("total_size is %d; flash->page_size is %d\n", |
| 141 | total_size, flash->page_size); |
| 142 | for (i = 0; i < total_size; i += flash->page_size) |
| 143 | erase_lhf00l04_block(flash, i); |
| 144 | printf("DONE ERASE\n"); |
Uwe Hermann | ffec5f3 | 2007-08-23 16:08:21 +0000 | [diff] [blame^] | 145 | |
| 146 | return 0; |
Ronald G. Minnich | 5b582f2 | 2006-02-23 17:16:44 +0000 | [diff] [blame] | 147 | } |
| 148 | |
Uwe Hermann | a7e0548 | 2007-05-09 10:17:44 +0000 | [diff] [blame] | 149 | void write_page_lhf00l04(volatile uint8_t *bios, uint8_t *src, |
| 150 | volatile uint8_t *dst, int page_size) |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 151 | { |
| 152 | int i; |
| 153 | |
| 154 | for (i = 0; i < page_size; i++) { |
| 155 | /* transfer data from source to destination */ |
| 156 | *dst = 0x40; |
| 157 | *dst++ = *src++; |
| 158 | wait_lhf00l04(bios); |
| 159 | } |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 160 | } |
| 161 | |
Ronald G. Minnich | 5b582f2 | 2006-02-23 17:16:44 +0000 | [diff] [blame] | 162 | int write_lhf00l04(struct flashchip *flash, uint8_t *buf) |
| 163 | { |
| 164 | int i; |
Uwe Hermann | a7e0548 | 2007-05-09 10:17:44 +0000 | [diff] [blame] | 165 | int total_size = flash->total_size * 1024; |
| 166 | int page_size = flash->page_size; |
Stefan Reinauer | ce53297 | 2007-05-23 17:20:56 +0000 | [diff] [blame] | 167 | volatile uint8_t *bios = flash->virtual_memory; |
Ronald G. Minnich | 5b582f2 | 2006-02-23 17:16:44 +0000 | [diff] [blame] | 168 | |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 169 | erase_lhf00l04(flash); |
| 170 | if (*bios != 0xff) { |
| 171 | printf("ERASE FAILED\n"); |
| 172 | return -1; |
| 173 | } |
Ronald G. Minnich | 5b582f2 | 2006-02-23 17:16:44 +0000 | [diff] [blame] | 174 | printf("Programming Page: "); |
| 175 | for (i = 0; i < total_size / page_size; i++) { |
Ronald G. Minnich | 5b582f2 | 2006-02-23 17:16:44 +0000 | [diff] [blame] | 176 | printf("%04d at address: 0x%08x", i, i * page_size); |
Ronald G. Minnich | 5eaed68 | 2006-03-14 19:58:14 +0000 | [diff] [blame] | 177 | write_page_lhf00l04(bios, buf + i * page_size, |
Uwe Hermann | a7e0548 | 2007-05-09 10:17:44 +0000 | [diff] [blame] | 178 | bios + i * page_size, page_size); |
| 179 | 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 | 5b582f2 | 2006-02-23 17:16:44 +0000 | [diff] [blame] | 180 | } |
| 181 | printf("\n"); |
Uwe Hermann | fd37414 | 2007-08-23 15:20:38 +0000 | [diff] [blame] | 182 | protect_jedec(bios); |
Uwe Hermann | ffec5f3 | 2007-08-23 16:08:21 +0000 | [diff] [blame^] | 183 | |
| 184 | return 0; |
Ronald G. Minnich | 5b582f2 | 2006-02-23 17:16:44 +0000 | [diff] [blame] | 185 | } |