2 * adapted from the Intel FW hub stuff for 82802ax parts.
5 * Copyright 2000 Silicon Integrated System Corporation
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.
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.
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.
32 #include "sst_fwhub.h"
34 // I need that Berkeley bit-map printer
35 void print_sst_fwhub_status(uint8_t status)
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:");
46 /* probe_jedec works fine for probing */
47 int probe_sst_fwhub(struct flashchip *flash)
49 volatile uint8_t *bios;
50 size_t size = flash->total_size * 1024;
52 if (probe_jedec(flash) == 0)
55 bios = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED,
56 fd_mem, (off_t) (0xFFFFFFFF - 0x400000 - size + 1));
57 if (bios == MAP_FAILED) {
58 // it's this part but we can't map it ...
59 perror("Error MMAP /dev/mem");
63 flash->virt_addr_2 = bios;
67 int erase_sst_fwhub_block(struct flashchip *flash, int offset)
69 volatile uint8_t *wrprotect = flash->virt_addr_2 + offset + 2;
71 // clear write protect
74 erase_block_jedec(flash->virt_addr, offset);
75 toggle_ready_jedec(flash->virt_addr);
80 int erase_sst_fwhub(struct flashchip *flash)
83 unsigned int total_size = flash->total_size * 1024;
85 for (i = 0; i < total_size; i += flash->page_size)
86 erase_sst_fwhub_block(flash, i);
90 int write_sst_fwhub(struct flashchip *flash, uint8_t *buf)
93 int total_size = flash->total_size * 1024;
94 int page_size = flash->page_size;
95 volatile uint8_t *bios = flash->virt_addr;
97 // FIXME: We want block wide erase instead of ironing the whole chip
98 erase_sst_fwhub(flash);
100 // dumb check if erase was successful.
101 for (i = 0; i < total_size; i++) {
102 if (bios[i] != 0xff) {
103 printf("ERASE FAILED\n");
108 printf("Programming Page: ");
109 for (i = 0; i < total_size / page_size; i++) {
110 printf("%04d at address: 0x%08x", i, i * page_size);
111 write_sector_jedec(bios, buf + i * page_size,
112 bios + i * page_size, page_size);
113 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");