support for sst firmware hub
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1651 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Ronald G. Minnich
parent
1b41f6b480
commit
2b763af4ca
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@ -1,5 +1,5 @@
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OBJS = flash_enable.o udelay.o jedec.o sst28sf040.o am29f040b.o mx29f002.c sst39sf020.o \
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m29f400bt.o w49f002u.o 82802ab.o msys_doc.o pm49fl004.o sst49lf040.o
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m29f400bt.o w49f002u.o 82802ab.o msys_doc.o pm49fl004.o sst49lf040.o sst_fwhub.o
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CC = gcc -O2 -g -Wall -Werror
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all: flash_rom flash_on
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@ -46,6 +46,7 @@
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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 "sst_fwhub.h"
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struct flashchip flashchips[] = {
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{"Am29F040B", AMD_ID, AM_29F040B, NULL, 512, 64 * 1024,
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@ -73,7 +74,7 @@ struct flashchip flashchips[] = {
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{"SST49LF004A", SST_ID, SST_49LF004A, NULL, 512, 4096,
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probe_jedec, erase_chip_jedec, write_49lf040,NULL},
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{"SST49LF008A", SST_ID, SST_49LF008A, NULL, 1024, 4096,
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probe_jedec, erase_chip_jedec, write_49lf040,NULL},
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probe_sst_fwhub, erase_sst_fwhub, write_sst_fwhub, NULL},
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{"Pm49FL004", PMC_ID, PMC_49FL004, NULL, 512, 64 * 1024,
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probe_jedec, erase_chip_jedec, write_49fl004,NULL},
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{"W29C011", WINBOND_ID, W_29C011, NULL, 128, 128,
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@ -89,6 +89,35 @@ int erase_sector_jedec(volatile unsigned char *bios, unsigned int page)
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return (0);
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}
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int erase_block_jedec(volatile unsigned char *bios, unsigned int block)
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{
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volatile unsigned char *Temp;
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/* Issue the Sector Erase command */
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Temp = bios + 0x5555; /* set up address to be BASE:5555h */
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*Temp = 0xAA; /* write data 0xAA to the address */
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myusec_delay(10);
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Temp = bios + 0x2AAA; /* set up address to be BASE:2AAAh */
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*Temp = 0x55; /* write data 0x55 to the address */
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myusec_delay(10);
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Temp = bios + 0x5555; /* set up address to be BASE:5555h */
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*Temp = 0x80; /* write data 0x80 to the address */
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myusec_delay(10);
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Temp = bios + 0x5555; /* set up address to be BASE:5555h */
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*Temp = 0xAA; /* write data 0xAA to the address */
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myusec_delay(10);
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Temp = bios + 0x2AAA; /* set up address to be BASE:2AAAh */
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*Temp = 0x55; /* write data 0x55 to the address */
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myusec_delay(10);
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Temp = bios + block; /* set up address to be the current sector */
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*Temp = 0x50; /* write data 0x30 to the address */
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myusec_delay(10);
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/* wait for Toggle bit ready */
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toggle_ready_jedec(bios);
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return (0);
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}
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int erase_chip_jedec(struct flashchip *flash)
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{
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@ -1,10 +1,13 @@
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#ifndef __JEDEC_H__
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#define __JEDEC_H__ 1
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int write_byte_program_jedec(volatile unsigned char *bios, unsigned char *src,
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volatile unsigned char *dst);
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extern int probe_jedec(struct flashchip *flash);
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extern int erase_chip_jedec(struct flashchip *flash);
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extern int write_jedec(struct flashchip *flash, unsigned char *buf);
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extern int erase_sector_jedec(volatile unsigned char *bios, unsigned int page);
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extern int erase_block_jedec(volatile unsigned char *bios, unsigned int page);
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extern int write_sector_jedec(volatile unsigned char *bios, unsigned char *src,
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volatile unsigned char *dst,
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unsigned int page_size);
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@ -0,0 +1,178 @@
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/*
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* adapted from the Intel FW hub stuff for 82802ax parts.
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*
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*
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* Copyright 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., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*
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* $Id$
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*/
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#include <errno.h>
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#include <fcntl.h>
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#include <sys/mman.h>
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#include <sys/io.h>
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#include <unistd.h>
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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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#include "jedec.h"
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#include "sst_fwhub.h"
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// I need that Berkeley bit-map printer
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void print_sst_fwhub_status(unsigned char 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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/* probe_jedec works fine for probing */
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int probe_sst_fwhub(struct flashchip *flash)
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{
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volatile unsigned char *bios = flash->virt_addr;
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unsigned char id1, id2;
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size_t size = flash->total_size * 1024;
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/* Issue JEDEC Product ID Entry command */
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*(volatile char *) (bios + 0x5555) = 0xAA;
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myusec_delay(10);
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*(volatile char *) (bios + 0x2AAA) = 0x55;
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myusec_delay(10);
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*(volatile char *) (bios + 0x5555) = 0x90;
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myusec_delay(10);
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/* Read product ID */
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id1 = *(volatile unsigned char *) bios;
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id2 = *(volatile unsigned char *) (bios + 0x01);
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/* Issue JEDEC Product ID Exit command */
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*(volatile char *) (bios + 0x5555) = 0xAA;
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myusec_delay(10);
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*(volatile char *) (bios + 0x2AAA) = 0x55;
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myusec_delay(10);
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*(volatile char *) (bios + 0x5555) = 0xF0;
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myusec_delay(10);
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printf("%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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myusec_delay(10);
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// we need to mmap the write-protect space.
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bios = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED,
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flash->fd_mem, (off_t) (0 - 0x400000 - size));
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if (bios == MAP_FAILED) {
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// it's this part but we can't map it ...
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perror("Error MMAP /dev/mem");
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exit(1);
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}
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flash->virt_addr_2 = bios;
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return 1;
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}
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unsigned char wait_sst_fwhub(volatile unsigned char *bios)
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{
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toggle_ready_jedec(bios);
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return 0;
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}
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int erase_sst_fwhub_block(struct flashchip *flash, int offset)
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{
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volatile unsigned char *bios = flash->virt_addr + offset;
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volatile unsigned char *wrprotect =
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flash->virt_addr_2 + offset + 2;
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unsigned char status;
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// clear status register
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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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erase_block_jedec(flash->virt_addr, offset);
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status = wait_sst_fwhub(flash->virt_addr);
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//print_sst_fwhub_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_sst_fwhub(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_sst_fwhub_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_sst_fwhub(volatile char *bios, char *src, volatile char *dst,
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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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write_byte_program_jedec(bios, src, dst);
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src++;
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dst++;
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}
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}
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int write_sst_fwhub(struct flashchip *flash, unsigned char *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 unsigned char *bios = flash->virt_addr;
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erase_sst_fwhub(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_sst_fwhub(bios, buf + i * page_size,
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bios + i * page_size, page_size);
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printf
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("\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_sst_fwhub(bios);
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return (0);
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}
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@ -0,0 +1,48 @@
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#ifndef __SST_FWHUB_H__
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#define __SST_FWHUB_H__ 1
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extern int probe_sst_fwhub(struct flashchip *flash);
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extern int erase_sst_fwhub(struct flashchip *flash);
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extern int write_sst_fwhub(struct flashchip *flash, unsigned char *buf);
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extern __inline__ void toggle_ready_sst_fwhub(volatile char *dst)
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{
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unsigned int i = 0;
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char tmp1, tmp2;
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tmp1 = *dst & 0x40;
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while (i++ < 0xFFFFFF) {
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tmp2 = *dst & 0x40;
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if (tmp1 == tmp2) {
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break;
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}
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tmp1 = tmp2;
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}
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}
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extern __inline__ void data_polling_sst_fwhub(volatile char *dst, char data)
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{
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unsigned int i = 0;
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char tmp;
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data &= 0x80;
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while (i++ < 0xFFFFFF) {
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tmp = *dst & 0x80;
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if (tmp == data) {
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break;
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}
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}
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}
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extern __inline__ void protect_sst_fwhub(volatile char *bios)
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{
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*(volatile char *) (bios + 0x5555) = 0xAA;
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*(volatile char *) (bios + 0x2AAA) = 0x55;
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*(volatile char *) (bios + 0x5555) = 0xA0;
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usleep(200);
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}
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#endif /* !__SST_FWHUB_H__ */
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