blob: 34a59daf00e75722bfd5f077874abc98dc4cbbfa [file] [log] [blame]
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +00001/*
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 *
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000021 */
22
23#include <errno.h>
24#include <fcntl.h>
25#include <sys/mman.h>
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000026#include <unistd.h>
27#include <stdio.h>
28#include <stdlib.h>
29
30#include "flash.h"
31#include "jedec.h"
32#include "sst_fwhub.h"
33
34// I need that Berkeley bit-map printer
Ollie Lho184a4042005-11-26 21:55:36 +000035void print_sst_fwhub_status(uint8_t status)
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000036{
37 printf("%s", status & 0x80 ? "Ready:" : "Busy:");
38 printf("%s", status & 0x40 ? "BE SUSPEND:" : "BE RUN/FINISH:");
39 printf("%s", status & 0x20 ? "BE ERROR:" : "BE OK:");
40 printf("%s", status & 0x10 ? "PROG ERR:" : "PROG OK:");
41 printf("%s", status & 0x8 ? "VP ERR:" : "VPP OK:");
42 printf("%s", status & 0x4 ? "PROG SUSPEND:" : "PROG RUN/FINISH:");
43 printf("%s", status & 0x2 ? "WP|TBL#|WP#,ABORT:" : "UNLOCK:");
44}
45
46/* probe_jedec works fine for probing */
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000047int probe_sst_fwhub(struct flashchip *flash)
48{
Ollie Lho184a4042005-11-26 21:55:36 +000049 volatile uint8_t *bios;
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000050 size_t size = flash->total_size * 1024;
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000051
Ollie Lhoefa28582004-12-08 20:10:01 +000052 if (probe_jedec(flash) == 0)
Ollie Lho98bea8a2004-12-07 03:15:51 +000053 return 0;
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000054
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000055 bios = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED,
Ollie Lho1b8b6602004-12-08 02:10:33 +000056 flash->fd_mem, (off_t) (0xFFFFFFFF - 0x400000 - size + 1));
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000057 if (bios == MAP_FAILED) {
Ollie Lho98bea8a2004-12-07 03:15:51 +000058 // it's this part but we can't map it ...
59 perror("Error MMAP /dev/mem");
60 exit(1);
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000061 }
62
63 flash->virt_addr_2 = bios;
64 return 1;
65}
66
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000067int erase_sst_fwhub_block(struct flashchip *flash, int offset)
68{
Ollie Lho184a4042005-11-26 21:55:36 +000069 volatile uint8_t *wrprotect = flash->virt_addr_2 + offset + 2;
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000070
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000071 // clear write protect
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000072 *(wrprotect) = 0;
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000073
74 erase_block_jedec(flash->virt_addr, offset);
Ollie Lhoefa28582004-12-08 20:10:01 +000075 toggle_ready_jedec(flash->virt_addr);
Ollie Lho1b8b6602004-12-08 02:10:33 +000076
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000077 return (0);
78}
79
80int erase_sst_fwhub(struct flashchip *flash)
81{
82 int i;
83 unsigned int total_size = flash->total_size * 1024;
84
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000085 for (i = 0; i < total_size; i += flash->page_size)
86 erase_sst_fwhub_block(flash, i);
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000087 return (0);
88}
89
Ollie Lho184a4042005-11-26 21:55:36 +000090int write_sst_fwhub(struct flashchip *flash, uint8_t *buf)
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000091{
92 int i;
93 int total_size = flash->total_size * 1024, page_size =
94 flash->page_size;
Ollie Lho184a4042005-11-26 21:55:36 +000095 volatile uint8_t *bios = flash->virt_addr;
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000096
Stefan Reinauere60fd352006-11-07 13:48:46 +000097 // FIXME: We want block wide erase instead of ironing the whole chip
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000098 erase_sst_fwhub(flash);
Ollie Lho184a4042005-11-26 21:55:36 +000099
Stefan Reinauere60fd352006-11-07 13:48:46 +0000100 // dumb check if erase was successful.
101 for (i=0; i < total_size; i++) {
102 if (bios[i] != 0xff) {
103 printf("ERASE FAILED\n");
104 return -1;
105 }
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +0000106 }
Stefan Reinauere60fd352006-11-07 13:48:46 +0000107
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +0000108 printf("Programming Page: ");
109 for (i = 0; i < total_size / page_size; i++) {
110 printf("%04d at address: 0x%08x", i, i * page_size);
Ollie Lhoefa28582004-12-08 20:10:01 +0000111 write_sector_jedec(bios, buf + i * page_size,
112 bios + i * page_size, page_size);
Ollie Lho1b8b6602004-12-08 02:10:33 +0000113 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. Minnich1f4d6532004-09-30 16:37:01 +0000114 }
115 printf("\n");
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +0000116 return (0);
117}