diff options
Diffstat (limited to 'msys_doc.c')
| -rw-r--r-- | msys_doc.c | 250 |
1 files changed, 0 insertions, 250 deletions
diff --git a/msys_doc.c b/msys_doc.c deleted file mode 100644 index 1d80f46..0000000 --- a/msys_doc.c +++ /dev/null @@ -1,250 +0,0 @@ -/* - * This file is part of the flashrom project. - * - * Copyright (C) 2003 Niki W. Waibel <niki.waibel@gmx.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <stdio.h> -#include <unistd.h> -#include "flash.h" -#include "msys_doc.h" - -static int doc_wait(volatile uint8_t *bios, int timeout); -static uint8_t doc_read_chipid(volatile uint8_t *bios); -static uint8_t doc_read_docstatus(volatile uint8_t *bios); -static uint8_t doc_read_cdsncontrol(volatile uint8_t *bios); -static void doc_write_cdsncontrol(volatile uint8_t *bios, uint8_t data); - -int probe_md2802(struct flashchip *flash) -{ - volatile uint8_t *bios = flash->virtual_memory; - uint8_t chipid; -#ifndef MSYSTEMS_DOC_NO_55AA_CHECKING - uint8_t id_0x55, id_0xAA; -#endif /* !MSYSTEMS_DOC_NO_55AA_CHECKING */ - int i, toggle_a, toggle_b; - - printf_debug("%s:\n", __FUNCTION__); - printf_debug("%s: *******************************\n", __FUNCTION__); - printf_debug("%s: * THIS IS A PRE ALPHA VERSION *\n", __FUNCTION__); - printf_debug("%s: * IN THE DEVELOPEMENT *********\n", __FUNCTION__); - printf_debug("%s: * PROCESS RIGHT NOW. **********\n", __FUNCTION__); - printf_debug("%s: *******************************\n", __FUNCTION__); - printf_debug("%s: * IF YOU ARE NOT A DEVELOPER **\n", __FUNCTION__); - printf_debug("%s: * THEN DO NOT TRY TO READ OR **\n", __FUNCTION__); - printf_debug("%s: * WRITE TO THIS DEVICE ********\n", __FUNCTION__); - printf_debug("%s: *******************************\n", __FUNCTION__); - printf_debug("%s:\n", __FUNCTION__); - - printf_debug("%s: switching off reset mode ...\n", __FUNCTION__); - doc_write(0x85, bios, DOCControl); - doc_write(0x85, bios, DOCControl); - doc_read_4nop(bios); - if (doc_wait(bios, 5000)) - return (-1); - printf("%s: switching off reset mode ... done\n", __FUNCTION__); - printf("%s:\n", __FUNCTION__); - - printf("%s: switching off write protection ...\n", __FUNCTION__); - doc_write_cdsncontrol(bios, doc_read_cdsncontrol(bios) & (~0x08)); - printf("%s: switching off write protection ... done\n", __FUNCTION__); - printf("%s:\n", __FUNCTION__); - - chipid = doc_read_chipid(bios); -#ifndef MSYSTEMS_DOC_NO_55AA_CHECKING - id_0x55 = doc_read(bios, IPL_0x0000); - id_0xAA = doc_read(bios, IPL_0x0001); -#endif /* !MSYSTEMS_DOC_NO_55AA_CHECKING */ - printf("%s: IPL_0x0000: 0x%02x\n", __FUNCTION__, id_0x55); - printf("%s: IPL_0x0001: 0x%02x\n", __FUNCTION__, id_0xAA); - printf("%s: IPL_0x0002: 0x%02x\n", __FUNCTION__, - doc_read(bios, IPL_0x0002)); - printf("%s: IPL_0x0003: 0x%02x\n", __FUNCTION__, - doc_read(bios, IPL_0x0003)); - printf("%s:\n", __FUNCTION__); - printf("%s: ChipID: 0x%02x\n", __FUNCTION__, chipid); - printf("%s: DOCStatus: 0x%02x\n", __FUNCTION__, - doc_read_docstatus(bios)); - printf("%s: FloorSelect: 0x%02x\n", __FUNCTION__, - doc_read(bios, FloorSelect)); - printf("%s: CDSNControl: 0x%02x\n", __FUNCTION__, - doc_read_cdsncontrol(bios)); - printf("%s: CDSNDeviceSelect: 0x%02x\n", __FUNCTION__, - doc_read(bios, CDSNDeviceSelect)); - printf("%s: ECCConfiguration: 0x%02x\n", __FUNCTION__, - doc_read(bios, ECCConfiguration)); - printf("%s: CDSNSlowIO: 0x%02x\n", __FUNCTION__, - doc_read(bios, CDSNSlowIO)); - printf("%s: ECCSyndrome0: 0x%02x\n", __FUNCTION__, - doc_read(bios, ECCSyndrome0)); - printf("%s: ECCSyndrome1: 0x%02x\n", __FUNCTION__, - doc_read(bios, ECCSyndrome1)); - printf("%s: ECCSyndrome2: 0x%02x\n", __FUNCTION__, - doc_read(bios, ECCSyndrome2)); - printf("%s: ECCSyndrome3: 0x%02x\n", __FUNCTION__, - doc_read(bios, ECCSyndrome3)); - printf("%s: ECCSyndrome4: 0x%02x\n", __FUNCTION__, - doc_read(bios, ECCSyndrome4)); - printf("%s: ECCSyndrome5: 0x%02x\n", __FUNCTION__, - doc_read(bios, ECCSyndrome5)); - printf("%s: AliasResolution: 0x%02x\n", __FUNCTION__, - doc_read(bios, AliasResolution)); - printf("%s: ConfigurationInput: 0x%02x\n", __FUNCTION__, - doc_read(bios, ConfigurationInput)); - printf("%s: ReadPipelineInitialization: 0x%02x\n", __FUNCTION__, - doc_read(bios, ReadPipelineInitialization)); - printf("%s: LastDataRead: 0x%02x\n", __FUNCTION__, - doc_read(bios, LastDataRead)); - printf("%s:\n", __FUNCTION__); - - printf("%s: checking ECCConfiguration toggle bit\n", __FUNCTION__); - printf("%s:", __FUNCTION__); - toggle_a = toggle_b = 0; - for (i = 0; i < 10; i++) { - uint8_t toggle = doc_toggle(bios); - - printf(" 0x%02x", toggle); - - if (i % 2) - toggle_a += toggle; - else - toggle_b += toggle; - } /* for(i=0; i<10; i++) */ - printf("\n%s: toggle result: %d/%d\n", __FUNCTION__, toggle_a, - toggle_b); - - if (chipid == flash->model_id && ((toggle_a == 5 && toggle_b == 0) - || (toggle_a == 0 && toggle_b == 5)) -#ifndef MSYSTEMS_DOC_NO_55AA_CHECKING - && id_0x55 == 0x55 && id_0xAA == 0xaa -#endif /* !MSYSTEMS_DOC_NO_55AA_CHECKING */ - ) { - return 1; - } - - return 0; -} - -int read_md2802(struct flashchip *flash, uint8_t *buf) -{ - return 0; -} - -int erase_md2802(struct flashchip *flash) -{ - volatile uint8_t *bios = flash->virtual_memory; - - return 1; - - *(volatile uint8_t *)(bios + 0x5555) = 0xAA; - *(volatile uint8_t *)(bios + 0x2AAA) = 0x55; - *(volatile uint8_t *)(bios + 0x5555) = 0x80; - - *(volatile uint8_t *)(bios + 0x5555) = 0xAA; - *(volatile uint8_t *)(bios + 0x2AAA) = 0x55; - *(volatile uint8_t *)(bios + 0x5555) = 0x10; -} - -int write_md2802(struct flashchip *flash, uint8_t *buf) -{ - int i; - int total_size = flash->total_size * 1024; - int page_size = flash->page_size; - volatile uint8_t *bios = flash->virtual_memory; - - return (1); - erase_md2802(flash); - if (*bios != (uint8_t) 0xff) { - printf("ERASE FAILED!\n"); - return -1; - } - printf("Programming page: "); - for (i = 0; i < total_size / page_size; i++) { - printf("%04d at address: 0x%08x", i, i * page_size); - //write_page_md2802(bios, buf + i * page_size, bios + i * page_size, page_size); - 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"); - } - printf("\n"); - //protect_md2802(bios); - - return 0; -} /* int write_md2802(struct flashchip *flash, uint8_t *buf) */ - -/* - wait timeout msec for doc to become ready - return: - 0: ready - -1: timeout expired -*/ - -static int doc_wait(volatile uint8_t *bios, int timeout) -{ - int i = 20; - - doc_read_4nop(bios); - - while (_doc_busy(bios) && (i != 0)) { - usleep(timeout * 1000 / 20); - i--; - } - - doc_read_2nop(bios); - - if (_doc_busy(bios)) { - doc_read_2nop(bios); - return (-1); - } - - return 0; -} - -static uint8_t doc_read_docstatus(volatile uint8_t *bios) -{ - doc_read(bios, CDSNSlowIO); - doc_read_2nop(bios); - - return (doc_read(bios, _DOCStatus)); -} - -static uint8_t doc_read_chipid(volatile uint8_t *bios) -{ - doc_read(bios, CDSNSlowIO); - doc_read_2nop(bios); - - return (doc_read(bios, _ChipID)); -} - -static uint8_t doc_read_cdsncontrol(volatile uint8_t *bios) -{ - uint8_t value; - - /* the delays might be necessary when reading the busy bit, - but because a read to this reg reads the busy bit - anyway we better do this delays... */ - doc_read_4nop(bios); - value = doc_read(bios, _CDSNControl); - doc_read_2nop(bios); - - return value; -} - -static void doc_write_cdsncontrol(volatile uint8_t *bios, uint8_t data) -{ - doc_write(data, bios, _CDSNControl); - doc_read_4nop(bios); -} |
