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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>
26#include <sys/io.h>
27#include <unistd.h>
28#include <stdio.h>
29#include <stdlib.h>
30
31#include "flash.h"
32#include "jedec.h"
33#include "sst_fwhub.h"
34
35// I need that Berkeley bit-map printer
Ollie Lho184a4042005-11-26 21:55:36 +000036void print_sst_fwhub_status(uint8_t status)
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000037{
38 printf("%s", status & 0x80 ? "Ready:" : "Busy:");
39 printf("%s", status & 0x40 ? "BE SUSPEND:" : "BE RUN/FINISH:");
40 printf("%s", status & 0x20 ? "BE ERROR:" : "BE OK:");
41 printf("%s", status & 0x10 ? "PROG ERR:" : "PROG OK:");
42 printf("%s", status & 0x8 ? "VP ERR:" : "VPP OK:");
43 printf("%s", status & 0x4 ? "PROG SUSPEND:" : "PROG RUN/FINISH:");
44 printf("%s", status & 0x2 ? "WP|TBL#|WP#,ABORT:" : "UNLOCK:");
45}
46
47/* probe_jedec works fine for probing */
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000048int probe_sst_fwhub(struct flashchip *flash)
49{
Ollie Lho184a4042005-11-26 21:55:36 +000050 volatile uint8_t *bios;
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000051 size_t size = flash->total_size * 1024;
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000052
Ollie Lhoefa28582004-12-08 20:10:01 +000053 if (probe_jedec(flash) == 0)
Ollie Lho98bea8a2004-12-07 03:15:51 +000054 return 0;
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000055
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000056 bios = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED,
Ollie Lho1b8b6602004-12-08 02:10:33 +000057 flash->fd_mem, (off_t) (0xFFFFFFFF - 0x400000 - size + 1));
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000058 if (bios == MAP_FAILED) {
Ollie Lho98bea8a2004-12-07 03:15:51 +000059 // it's this part but we can't map it ...
60 perror("Error MMAP /dev/mem");
61 exit(1);
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000062 }
63
64 flash->virt_addr_2 = bios;
65 return 1;
66}
67
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000068int erase_sst_fwhub_block(struct flashchip *flash, int offset)
69{
Ollie Lho184a4042005-11-26 21:55:36 +000070 volatile uint8_t *wrprotect = flash->virt_addr_2 + offset + 2;
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000071
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000072 // clear write protect
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000073 *(wrprotect) = 0;
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000074
75 erase_block_jedec(flash->virt_addr, offset);
Ollie Lhoefa28582004-12-08 20:10:01 +000076 toggle_ready_jedec(flash->virt_addr);
Ollie Lho1b8b6602004-12-08 02:10:33 +000077
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000078 return (0);
79}
80
81int erase_sst_fwhub(struct flashchip *flash)
82{
83 int i;
84 unsigned int total_size = flash->total_size * 1024;
85
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000086 for (i = 0; i < total_size; i += flash->page_size)
87 erase_sst_fwhub_block(flash, i);
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000088 return (0);
89}
90
Ollie Lho184a4042005-11-26 21:55:36 +000091int write_sst_fwhub(struct flashchip *flash, uint8_t *buf)
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000092{
93 int i;
94 int total_size = flash->total_size * 1024, page_size =
95 flash->page_size;
Ollie Lho184a4042005-11-26 21:55:36 +000096 volatile uint8_t *bios = flash->virt_addr;
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000097
Stefan Reinauere60fd352006-11-07 13:48:46 +000098 // FIXME: We want block wide erase instead of ironing the whole chip
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000099 erase_sst_fwhub(flash);
Ollie Lho184a4042005-11-26 21:55:36 +0000100
Stefan Reinauere60fd352006-11-07 13:48:46 +0000101 // dumb check if erase was successful.
102 for (i=0; i < total_size; i++) {
103 if (bios[i] != 0xff) {
104 printf("ERASE FAILED\n");
105 return -1;
106 }
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +0000107 }
Stefan Reinauere60fd352006-11-07 13:48:46 +0000108
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +0000109 printf("Programming Page: ");
110 for (i = 0; i < total_size / page_size; i++) {
111 printf("%04d at address: 0x%08x", i, i * page_size);
Ollie Lhoefa28582004-12-08 20:10:01 +0000112 write_sector_jedec(bios, buf + i * page_size,
113 bios + i * page_size, page_size);
Ollie Lho1b8b6602004-12-08 02:10:33 +0000114 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 +0000115 }
116 printf("\n");
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +0000117 return (0);
118}