Drop 82802ab.c as it is identical to sharplhf00l04.c.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Peter Stuge <peter@stuge.se> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3137 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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Carl-Daniel Hailfinger
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3182122c3b
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b7b22e3c57
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/*
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* This file is part of the flashrom project.
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*
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* Copyright (C) 2000 Silicon Integrated System Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/*
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* Datasheet:
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* - Name: Intel 82802AB/82802AC Firmware Hub (FWH)
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* - URL: http://www.intel.com/design/chipsets/datashts/290658.htm
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* - PDF: http://download.intel.com/design/chipsets/datashts/29065804.pdf
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* - Order number: 290658-004
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*/
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#include <stdio.h>
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#include <stdint.h>
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#include "flash.h"
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// I need that Berkeley bit-map printer
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void print_82802ab_status(uint8_t status)
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{
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printf("%s", status & 0x80 ? "Ready:" : "Busy:");
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printf("%s", status & 0x40 ? "BE SUSPEND:" : "BE RUN/FINISH:");
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printf("%s", status & 0x20 ? "BE ERROR:" : "BE OK:");
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printf("%s", status & 0x10 ? "PROG ERR:" : "PROG OK:");
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printf("%s", status & 0x8 ? "VP ERR:" : "VPP OK:");
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printf("%s", status & 0x4 ? "PROG SUSPEND:" : "PROG RUN/FINISH:");
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printf("%s", status & 0x2 ? "WP|TBL#|WP#,ABORT:" : "UNLOCK:");
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}
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int probe_82802ab(struct flashchip *flash)
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{
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volatile uint8_t *bios = flash->virtual_memory;
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uint8_t id1, id2;
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#if 0
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*(volatile uint8_t *)(bios + 0x5555) = 0xAA;
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*(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
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*(volatile uint8_t *)(bios + 0x5555) = 0x90;
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#endif
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*bios = 0xff;
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myusec_delay(10);
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*bios = 0x90;
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myusec_delay(10);
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id1 = *(volatile uint8_t *)bios;
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id2 = *(volatile uint8_t *)(bios + 0x01);
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/* Leave ID mode */
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*(volatile uint8_t *)(bios + 0x5555) = 0xAA;
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*(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
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*(volatile uint8_t *)(bios + 0x5555) = 0xF0;
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myusec_delay(10);
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printf_debug("%s: id1 0x%x, id2 0x%x\n", __FUNCTION__, id1, id2);
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if (id1 != flash->manufacture_id || id2 != flash->model_id)
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return 0;
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map_flash_registers(flash);
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return 1;
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}
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uint8_t wait_82802ab(volatile uint8_t *bios)
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{
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uint8_t status;
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uint8_t id1, id2;
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*bios = 0x70;
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if ((*bios & 0x80) == 0) { // it's busy
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while ((*bios & 0x80) == 0) ;
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}
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status = *bios;
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// put another command to get out of status register mode
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*bios = 0x90;
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myusec_delay(10);
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id1 = *(volatile uint8_t *)bios;
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id2 = *(volatile uint8_t *)(bios + 0x01);
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// this is needed to jam it out of "read id" mode
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*(volatile uint8_t *)(bios + 0x5555) = 0xAA;
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*(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
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*(volatile uint8_t *)(bios + 0x5555) = 0xF0;
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return status;
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}
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int erase_82802ab_block(struct flashchip *flash, int offset)
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{
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volatile uint8_t *bios = flash->virtual_memory + offset;
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volatile uint8_t *wrprotect = flash->virtual_registers + offset + 2;
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uint8_t status;
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// clear status register
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*bios = 0x50;
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//printf("Erase at %p\n", bios);
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// clear write protect
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//printf("write protect is at %p\n", (wrprotect));
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//printf("write protect is 0x%x\n", *(wrprotect));
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*(wrprotect) = 0;
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//printf("write protect is 0x%x\n", *(wrprotect));
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// now start it
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*(volatile uint8_t *)(bios) = 0x20;
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*(volatile uint8_t *)(bios) = 0xd0;
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myusec_delay(10);
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// now let's see what the register is
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status = wait_82802ab(flash->virtual_memory);
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//print_82802ab_status(status);
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printf("DONE BLOCK 0x%x\n", offset);
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return 0;
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}
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int erase_82802ab(struct flashchip *flash)
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{
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int i;
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unsigned int total_size = flash->total_size * 1024;
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printf("total_size is %d; flash->page_size is %d\n",
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total_size, flash->page_size);
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for (i = 0; i < total_size; i += flash->page_size)
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erase_82802ab_block(flash, i);
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printf("DONE ERASE\n");
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return 0;
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}
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void write_page_82802ab(volatile uint8_t *bios, uint8_t *src,
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volatile uint8_t *dst, int page_size)
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{
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int i;
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for (i = 0; i < page_size; i++) {
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/* transfer data from source to destination */
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*dst = 0x40;
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*dst++ = *src++;
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wait_82802ab(bios);
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}
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}
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int write_82802ab(struct flashchip *flash, uint8_t *buf)
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{
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int i;
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int total_size = flash->total_size * 1024;
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int page_size = flash->page_size;
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volatile uint8_t *bios = flash->virtual_memory;
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erase_82802ab(flash);
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if (*bios != 0xff) {
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printf("ERASE FAILED\n");
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return -1;
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}
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printf("Programming page: ");
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for (i = 0; i < total_size / page_size; i++) {
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printf("%04d at address: 0x%08x", i, i * page_size);
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write_page_82802ab(bios, buf + i * page_size,
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bios + i * page_size, page_size);
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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");
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}
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printf("\n");
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protect_jedec(bios);
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return 0;
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}
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@ -22,7 +22,7 @@ endif
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OBJS = chipset_enable.o board_enable.o udelay.o jedec.o sst28sf040.o \
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am29f040b.o mx29f002.o sst39sf020.o m29f400bt.o w49f002u.o \
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82802ab.o msys_doc.o pm49fl004.o sst49lf040.o sst49lfxxxc.o \
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msys_doc.o pm49fl004.o sst49lf040.o sst49lfxxxc.o \
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sst_fwhub.o layout.o cbtable.o flashchips.o flashrom.o \
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sharplhf00l04.o w29ee011.o spi.o
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@ -192,10 +192,10 @@ struct flashchip flashchips[] = {
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probe_spi, generic_spi_chip_erase_c7, generic_spi_chip_write, generic_spi_chip_read},
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{"M25P128", ST_ID, ST_M25P128, 16384, 256,
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probe_spi, generic_spi_chip_erase_c7, generic_spi_chip_write, generic_spi_chip_read},
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{"82802ab", 137, 173, 512, 64 * 1024,
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probe_82802ab, erase_82802ab, write_82802ab},
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{"82802ac", 137, 172, 1024, 64 * 1024,
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probe_82802ab, erase_82802ab, write_82802ab},
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{"82802ab", INTEL_ID, 173, 512, 64 * 1024,
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probe_lhf00l04, erase_lhf00l04, write_lhf00l04},
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{"82802ac", INTEL_ID, 172, 1024, 64 * 1024,
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probe_lhf00l04, erase_lhf00l04, write_lhf00l04},
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{"F49B002UA", EMST_ID, EMST_F49B002UA, 256, 4096,
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probe_jedec, erase_chip_jedec, write_49f002},
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#ifndef DISABLE_DOC
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@ -18,6 +18,14 @@
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/*
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* Datasheet:
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* - Name: Intel 82802AB/82802AC Firmware Hub (FWH)
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* - URL: http://www.intel.com/design/chipsets/datashts/290658.htm
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* - PDF: http://download.intel.com/design/chipsets/datashts/29065804.pdf
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* - Order number: 290658-004
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "flash.h"
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