added sharp flash
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2180 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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24c541ba94
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@ -15,7 +15,7 @@ LDFLAGS = -lpci -static
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OBJS = flash_enable.o udelay.o jedec.o sst28sf040.o am29f040b.o mx29f002.o \
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sst39sf020.o m29f400bt.o w49f002u.o 82802ab.o msys_doc.o pm49fl004.o \
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sst49lf040.o sst_fwhub.o layout.o lbtable.o flashchips.o flash_rom.o
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sst49lf040.o sst_fwhub.o layout.o lbtable.o flashchips.o flash_rom.o sharplhf00l04.o
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all: pciutils dep $(PROGRAM)
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@ -34,6 +34,9 @@ extern struct flashchip flashchips[];
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#define MX_ID 0xC2
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#define MX_29F002 0xB0
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#define SHARP_ID 0xB0
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#define SHARP_LHF00L04 0xCF
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#define SST_ID 0xBF /* SST Manufacturer ID code */
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#define SST_29EE020A 0x10 /* SST 29EE020 device code */
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#define SST_28SF040 0x04 /* SST 29EE040 device code */
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@ -36,6 +36,7 @@
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#include "sst49lf040.h"
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#include "pm49fl004.h"
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#include "mx29f002.h"
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#include "sharplhf00l04.h"
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#include "sst_fwhub.h"
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struct flashchip flashchips[] = {
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@ -85,6 +86,8 @@ struct flashchip flashchips[] = {
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NULL, 8, 8 * 1024,
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probe_md2802, erase_md2802, write_md2802, read_md2802},
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#endif
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{"LHF00L04", SHARP_ID, SHARP_LHF00L04, NULL, 1024, 64 * 1024,
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probe_lhf00l04, erase_lhf00l04, write_lhf00l04, NULL},
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{NULL,}
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};
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@ -0,0 +1,155 @@
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/*
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* sst28sf040.c: driver for SST28SF040C flash models.
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*
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*
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* Copyright 2000 Silicon Integrated System Corporation
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* Copyright 2005 coresystems GmbH <stepan@openbios.org>
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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., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*
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* Reference:
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* 8 MEgabit (1024K x 8) SHARP LHF00L04, data sheet
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*
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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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#include "debug.h"
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#define AUTO_PG_ERASE1 0x20
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#define AUTO_PG_ERASE2 0xD0
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#define AUTO_PGRM 0x10
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#define CHIP_ERASE 0x30
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#define RESET 0xFF
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#define READ_ID 0x90
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static __inline__ void protect_lhf00l04(volatile uint8_t *bios)
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{
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/* ask compiler not to optimize this */
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// volatile uint8_t tmp;
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}
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static __inline__ void unprotect_lhf00l04(volatile uint8_t *bios)
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{
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/* ask compiler not to optimize this */
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// volatile uint8_t tmp;
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}
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static __inline__ int erase_sector_lhf00l04(volatile uint8_t *bios,
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unsigned long address)
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{
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return (0);
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}
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static __inline__ int write_sector_lhf00l04(volatile uint8_t *bios,
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uint8_t *src,
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volatile uint8_t *dst,
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unsigned 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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if (*src == 0xFF) {
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dst++, src++;
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/* If the data is 0xFF, don't program it */
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continue;
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}
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/*issue AUTO PROGRAM command */
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*dst = AUTO_PGRM;
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*dst++ = *src++;
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/* wait for Toggle bit ready */
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// toggle_ready_jedec(bios);
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}
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return (0);
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}
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int probe_lhf00l04(struct flashchip *flash)
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{
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volatile uint8_t *bios = flash->virt_addr;
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uint8_t id1, id2, tmp;
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/* save the value at the beginning of the Flash */
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tmp = *bios;
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*bios = RESET;
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myusec_delay(10);
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*bios = READ_ID;
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myusec_delay(10);
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id1 = *(volatile uint8_t *) bios;
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myusec_delay(10);
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id2 = *(volatile uint8_t *) (bios + 0x01);
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*bios = RESET;
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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 1;
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/* if there is no lhf00l04, restore the original value */
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*bios = tmp;
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return 0;
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}
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int erase_lhf00l04(struct flashchip *flash)
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{
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volatile uint8_t *bios = flash->virt_addr;
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unprotect_lhf00l04(bios);
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*bios = CHIP_ERASE;
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*bios = CHIP_ERASE;
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protect_lhf00l04(bios);
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myusec_delay(10);
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// toggle_ready_jedec(bios);
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return (0);
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}
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int write_lhf00l04(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, page_size =
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flash->page_size;
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volatile uint8_t *bios = flash->virt_addr;
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unprotect_lhf00l04(bios);
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printf("Programming Page: ");
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for (i = 0; i < total_size / page_size; i++) {
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/* erase the page before programming */
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erase_sector_lhf00l04(bios, i * page_size);
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/* write to the sector */
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printf("%04d at address: 0x%08x", i, i * page_size);
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write_sector_lhf00l04(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_lhf00l04(bios);
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return (0);
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}
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@ -0,0 +1,8 @@
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#ifndef __SHARPLHF00L04_H__
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#define __SHARPLHF00L04_H__ 1
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extern int probe_lhf00l04(struct flashchip *flash);
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extern int erase_lhf00l04(struct flashchip *flash);
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extern int write_lhf00l04(struct flashchip *flash, uint8_t *buf);
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#endif /* !__SHARPLHF00L04_H__ */
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