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.
33 #include "sst_fwhub.h"
35 // I need that Berkeley bit-map printer
36 void print_sst_fwhub_status(uint8_t status)
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:");
47 /* probe_jedec works fine for probing */
48 int probe_sst_fwhub(struct flashchip *flash)
50 volatile uint8_t *bios;
51 size_t size = flash->total_size * 1024;
53 if (probe_jedec(flash) == 0)
56 bios = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED,
57 flash->fd_mem, (off_t) (0xFFFFFFFF - 0x400000 - size + 1));
58 if (bios == MAP_FAILED) {
59 // it's this part but we can't map it ...
60 perror("Error MMAP /dev/mem");
64 flash->virt_addr_2 = bios;
68 int erase_sst_fwhub_block(struct flashchip *flash, int offset)
70 volatile uint8_t *wrprotect = flash->virt_addr_2 + offset + 2;
72 // clear write protect
75 erase_block_jedec(flash->virt_addr, offset);
76 toggle_ready_jedec(flash->virt_addr);
81 int erase_sst_fwhub(struct flashchip *flash)
84 unsigned int total_size = flash->total_size * 1024;
86 for (i = 0; i < total_size; i += flash->page_size)
87 erase_sst_fwhub_block(flash, i);
91 int write_sst_fwhub(struct flashchip *flash, uint8_t *buf)
94 int total_size = flash->total_size * 1024, page_size =
96 volatile uint8_t *bios = flash->virt_addr;
98 // Do we want block wide erase?
99 erase_sst_fwhub(flash);
101 // FIXME: This test is not sufficient!
103 printf("ERASE FAILED\n");
106 printf("Programming Page: ");
107 for (i = 0; i < total_size / page_size; i++) {
108 printf("%04d at address: 0x%08x", i, i * page_size);
109 write_sector_jedec(bios, buf + i * page_size,
110 bios + i * page_size, page_size);
111 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");