From 2b763af4ca6541734ff7d36a16173f9606c248c9 Mon Sep 17 00:00:00 2001 From: "Ronald G. Minnich" Date: Thu, 30 Sep 2004 16:37:01 +0000 Subject: support for sst firmware hub git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1651 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- util/flash_and_burn/Makefile | 2 +- util/flash_and_burn/flash_rom.c | 3 +- util/flash_and_burn/jedec.c | 29 +++++++ util/flash_and_burn/jedec.h | 3 + util/flash_and_burn/sst_fwhub.c | 178 ++++++++++++++++++++++++++++++++++++++++ util/flash_and_burn/sst_fwhub.h | 48 +++++++++++ 6 files changed, 261 insertions(+), 2 deletions(-) create mode 100644 util/flash_and_burn/sst_fwhub.c create mode 100644 util/flash_and_burn/sst_fwhub.h (limited to 'util') diff --git a/util/flash_and_burn/Makefile b/util/flash_and_burn/Makefile index d87cde2413..9d4124f31f 100644 --- a/util/flash_and_burn/Makefile +++ b/util/flash_and_burn/Makefile @@ -1,5 +1,5 @@ OBJS = flash_enable.o udelay.o jedec.o sst28sf040.o am29f040b.o mx29f002.c sst39sf020.o \ - m29f400bt.o w49f002u.o 82802ab.o msys_doc.o pm49fl004.o sst49lf040.o + m29f400bt.o w49f002u.o 82802ab.o msys_doc.o pm49fl004.o sst49lf040.o sst_fwhub.o CC = gcc -O2 -g -Wall -Werror all: flash_rom flash_on diff --git a/util/flash_and_burn/flash_rom.c b/util/flash_and_burn/flash_rom.c index 6abd4898b1..3fd56e31d8 100644 --- a/util/flash_and_burn/flash_rom.c +++ b/util/flash_and_burn/flash_rom.c @@ -46,6 +46,7 @@ #include "sst49lf040.h" #include "pm49fl004.h" #include "mx29f002.h" +#include "sst_fwhub.h" struct flashchip flashchips[] = { {"Am29F040B", AMD_ID, AM_29F040B, NULL, 512, 64 * 1024, @@ -73,7 +74,7 @@ struct flashchip flashchips[] = { {"SST49LF004A", SST_ID, SST_49LF004A, NULL, 512, 4096, probe_jedec, erase_chip_jedec, write_49lf040,NULL}, {"SST49LF008A", SST_ID, SST_49LF008A, NULL, 1024, 4096, - probe_jedec, erase_chip_jedec, write_49lf040,NULL}, + probe_sst_fwhub, erase_sst_fwhub, write_sst_fwhub, NULL}, {"Pm49FL004", PMC_ID, PMC_49FL004, NULL, 512, 64 * 1024, probe_jedec, erase_chip_jedec, write_49fl004,NULL}, {"W29C011", WINBOND_ID, W_29C011, NULL, 128, 128, diff --git a/util/flash_and_burn/jedec.c b/util/flash_and_burn/jedec.c index d99e774be7..19a233b81c 100644 --- a/util/flash_and_burn/jedec.c +++ b/util/flash_and_burn/jedec.c @@ -89,6 +89,35 @@ int erase_sector_jedec(volatile unsigned char *bios, unsigned int page) return (0); } +int erase_block_jedec(volatile unsigned char *bios, unsigned int block) +{ + volatile unsigned char *Temp; + + /* Issue the Sector Erase command */ + Temp = bios + 0x5555; /* set up address to be BASE:5555h */ + *Temp = 0xAA; /* write data 0xAA to the address */ + myusec_delay(10); + Temp = bios + 0x2AAA; /* set up address to be BASE:2AAAh */ + *Temp = 0x55; /* write data 0x55 to the address */ + myusec_delay(10); + Temp = bios + 0x5555; /* set up address to be BASE:5555h */ + *Temp = 0x80; /* write data 0x80 to the address */ + myusec_delay(10); + Temp = bios + 0x5555; /* set up address to be BASE:5555h */ + *Temp = 0xAA; /* write data 0xAA to the address */ + myusec_delay(10); + Temp = bios + 0x2AAA; /* set up address to be BASE:2AAAh */ + *Temp = 0x55; /* write data 0x55 to the address */ + myusec_delay(10); + Temp = bios + block; /* set up address to be the current sector */ + *Temp = 0x50; /* write data 0x30 to the address */ + myusec_delay(10); + + /* wait for Toggle bit ready */ + toggle_ready_jedec(bios); + + return (0); +} int erase_chip_jedec(struct flashchip *flash) { diff --git a/util/flash_and_burn/jedec.h b/util/flash_and_burn/jedec.h index 756605e0b5..2a9f977711 100644 --- a/util/flash_and_burn/jedec.h +++ b/util/flash_and_burn/jedec.h @@ -1,10 +1,13 @@ #ifndef __JEDEC_H__ #define __JEDEC_H__ 1 +int write_byte_program_jedec(volatile unsigned char *bios, unsigned char *src, + volatile unsigned char *dst); extern int probe_jedec(struct flashchip *flash); extern int erase_chip_jedec(struct flashchip *flash); extern int write_jedec(struct flashchip *flash, unsigned char *buf); extern int erase_sector_jedec(volatile unsigned char *bios, unsigned int page); +extern int erase_block_jedec(volatile unsigned char *bios, unsigned int page); extern int write_sector_jedec(volatile unsigned char *bios, unsigned char *src, volatile unsigned char *dst, unsigned int page_size); diff --git a/util/flash_and_burn/sst_fwhub.c b/util/flash_and_burn/sst_fwhub.c new file mode 100644 index 0000000000..7ab6bdba30 --- /dev/null +++ b/util/flash_and_burn/sst_fwhub.c @@ -0,0 +1,178 @@ +/* + * adapted from the Intel FW hub stuff for 82802ax parts. + * + * + * Copyright 2000 Silicon Integrated System Corporation + * + * 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., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * + * $Id$ + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "flash.h" +#include "jedec.h" +#include "sst_fwhub.h" + +// I need that Berkeley bit-map printer +void print_sst_fwhub_status(unsigned char status) +{ + printf("%s", status & 0x80 ? "Ready:" : "Busy:"); + printf("%s", status & 0x40 ? "BE SUSPEND:" : "BE RUN/FINISH:"); + printf("%s", status & 0x20 ? "BE ERROR:" : "BE OK:"); + printf("%s", status & 0x10 ? "PROG ERR:" : "PROG OK:"); + printf("%s", status & 0x8 ? "VP ERR:" : "VPP OK:"); + printf("%s", status & 0x4 ? "PROG SUSPEND:" : "PROG RUN/FINISH:"); + printf("%s", status & 0x2 ? "WP|TBL#|WP#,ABORT:" : "UNLOCK:"); +} + +/* probe_jedec works fine for probing */ + +int probe_sst_fwhub(struct flashchip *flash) +{ + volatile unsigned char *bios = flash->virt_addr; + unsigned char id1, id2; + size_t size = flash->total_size * 1024; + /* Issue JEDEC Product ID Entry command */ + *(volatile char *) (bios + 0x5555) = 0xAA; + myusec_delay(10); + *(volatile char *) (bios + 0x2AAA) = 0x55; + myusec_delay(10); + *(volatile char *) (bios + 0x5555) = 0x90; + myusec_delay(10); + + /* Read product ID */ + id1 = *(volatile unsigned char *) bios; + id2 = *(volatile unsigned char *) (bios + 0x01); + + /* Issue JEDEC Product ID Exit command */ + *(volatile char *) (bios + 0x5555) = 0xAA; + myusec_delay(10); + *(volatile char *) (bios + 0x2AAA) = 0x55; + myusec_delay(10); + *(volatile char *) (bios + 0x5555) = 0xF0; + myusec_delay(10); + + printf("%s: id1 0x%x, id2 0x%x\n", __FUNCTION__, id1, id2); + if (id1 != flash->manufacture_id || id2 != flash->model_id) + return 0; + + myusec_delay(10); + + + + // we need to mmap the write-protect space. + bios = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED, + flash->fd_mem, (off_t) (0 - 0x400000 - size)); + if (bios == MAP_FAILED) { + // it's this part but we can't map it ... + perror("Error MMAP /dev/mem"); + exit(1); + } + + flash->virt_addr_2 = bios; + return 1; +} + +unsigned char wait_sst_fwhub(volatile unsigned char *bios) +{ + + + + toggle_ready_jedec(bios); + return 0; +} + +int erase_sst_fwhub_block(struct flashchip *flash, int offset) +{ + volatile unsigned char *bios = flash->virt_addr + offset; + volatile unsigned char *wrprotect = + flash->virt_addr_2 + offset + 2; + unsigned char status; + + // clear status register + printf("Erase at %p\n", bios); + // clear write protect + printf("write protect is at %p\n", (wrprotect)); + printf("write protect is 0x%x\n", *(wrprotect)); + *(wrprotect) = 0; + printf("write protect is 0x%x\n", *(wrprotect)); + + erase_block_jedec(flash->virt_addr, offset); + status = wait_sst_fwhub(flash->virt_addr); + //print_sst_fwhub_status(status); + printf("DONE BLOCK 0x%x\n", offset); + return (0); +} + +int erase_sst_fwhub(struct flashchip *flash) +{ + int i; + unsigned int total_size = flash->total_size * 1024; + + printf("total_size is %d; flash->page_size is %d\n", + total_size, flash->page_size); + for (i = 0; i < total_size; i += flash->page_size) + erase_sst_fwhub_block(flash, i); + printf("DONE ERASE\n"); + return (0); +} + +void write_page_sst_fwhub(volatile char *bios, char *src, volatile char *dst, + int page_size) +{ + int i; + + for (i = 0; i < page_size; i++) { + /* transfer data from source to destination */ + write_byte_program_jedec(bios, src, dst); + src++; + dst++; + } + +} + +int write_sst_fwhub(struct flashchip *flash, unsigned char *buf) +{ + int i; + int total_size = flash->total_size * 1024, page_size = + flash->page_size; + volatile unsigned char *bios = flash->virt_addr; + + erase_sst_fwhub(flash); + if (*bios != 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_sst_fwhub(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_sst_fwhub(bios); + return (0); +} diff --git a/util/flash_and_burn/sst_fwhub.h b/util/flash_and_burn/sst_fwhub.h new file mode 100644 index 0000000000..3569130508 --- /dev/null +++ b/util/flash_and_burn/sst_fwhub.h @@ -0,0 +1,48 @@ +#ifndef __SST_FWHUB_H__ +#define __SST_FWHUB_H__ 1 + +extern int probe_sst_fwhub(struct flashchip *flash); +extern int erase_sst_fwhub(struct flashchip *flash); +extern int write_sst_fwhub(struct flashchip *flash, unsigned char *buf); + +extern __inline__ void toggle_ready_sst_fwhub(volatile char *dst) +{ + unsigned int i = 0; + char tmp1, tmp2; + + tmp1 = *dst & 0x40; + + while (i++ < 0xFFFFFF) { + tmp2 = *dst & 0x40; + if (tmp1 == tmp2) { + break; + } + tmp1 = tmp2; + } +} + +extern __inline__ void data_polling_sst_fwhub(volatile char *dst, char data) +{ + unsigned int i = 0; + char tmp; + + data &= 0x80; + + while (i++ < 0xFFFFFF) { + tmp = *dst & 0x80; + if (tmp == data) { + break; + } + } +} + +extern __inline__ void protect_sst_fwhub(volatile char *bios) +{ + *(volatile char *) (bios + 0x5555) = 0xAA; + *(volatile char *) (bios + 0x2AAA) = 0x55; + *(volatile char *) (bios + 0x5555) = 0xA0; + + usleep(200); +} + +#endif /* !__SST_FWHUB_H__ */ -- cgit v1.2.3