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removed spd_dump.c, it has nothing to do with flashing flash parts. 

use standard product ID exit method for w49f002u
move udelay stuff into its own file


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1433 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Li-Ta Lo 2004-03-17 23:03:37 +00:00
parent e74ff463c4
commit 698f23db22
4 changed files with 38 additions and 89 deletions
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2
util/flash_and_burn/flash_rom.c
View File

@ -116,7 +116,7 @@ struct flashchip * probe_flash(struct flashchip * flash)
} }
bios = mmap (0, size, PROT_WRITE | PROT_READ, MAP_SHARED, bios = mmap (0, size, PROT_WRITE | PROT_READ, MAP_SHARED,
//fd_mem, (off_t) (0x100000000-size)); //fd_mem, (off_t) (0x100000000-size));
fd_mem, (off_t) (0x0-size)); fd_mem, (off_t) (0xffffffff-size+1));
if (bios == MAP_FAILED) { if (bios == MAP_FAILED) {
perror("Error MMAP /dev/mem"); perror("Error MMAP /dev/mem");
exit(1); exit(1);

45
util/flash_and_burn/sst49lf040.c
View File

@ -23,8 +23,6 @@
* *
* $Id$ * $Id$
*/ */
#include <stdio.h> #include <stdio.h>
#include "flash.h" #include "flash.h"
#include "jedec.h" #include "jedec.h"
@ -37,35 +35,7 @@
#define RESET 0xFF #define RESET 0xFF
#define READ_ID 0x90 #define READ_ID 0x90
static __inline__ void protect_49lf040 (volatile char * bios) static int erase_sector_49lf040 (volatile char * bios, unsigned int page)
{
/* ask compiler not to optimize this */
volatile unsigned char tmp;
tmp = *(volatile unsigned char *) (bios + 0x1823);
tmp = *(volatile unsigned char *) (bios + 0x1820);
tmp = *(volatile unsigned char *) (bios + 0x1822);
tmp = *(volatile unsigned char *) (bios + 0x0418);
tmp = *(volatile unsigned char *) (bios + 0x041B);
tmp = *(volatile unsigned char *) (bios + 0x0419);
tmp = *(volatile unsigned char *) (bios + 0x040A);
}
static __inline__ void unprotect_49lf040 (volatile char * bios)
{
/* ask compiler not to optimize this */
volatile unsigned char tmp;
tmp = *(volatile unsigned char *) (bios + 0x1823);
tmp = *(volatile unsigned char *) (bios + 0x1820);
tmp = *(volatile unsigned char *) (bios + 0x1822);
tmp = *(volatile unsigned char *) (bios + 0x0418);
tmp = *(volatile unsigned char *) (bios + 0x041B);
tmp = *(volatile unsigned char *) (bios + 0x0419);
tmp = *(volatile unsigned char *) (bios + 0x041A);
}
int erase_sector_49lf040 (volatile char * bios, unsigned int page)
{ {
/* Chip erase function does not exist for LPC mode on 49lf040. /* Chip erase function does not exist for LPC mode on 49lf040.
* Erase sector-by-sector instead. */ * Erase sector-by-sector instead. */
@ -99,9 +69,9 @@ int erase_sector_49lf040 (volatile char * bios, unsigned int page)
} }
static __inline__ int write_sector_49lf040(volatile char * bios, static __inline__ int write_sector_49lf040(volatile char * bios,
unsigned char * src, unsigned char * src,
volatile unsigned char * dst, volatile unsigned char * dst,
unsigned int page_size) unsigned int page_size)
{ {
int i; int i;
volatile char *Temp; volatile char *Temp;
@ -146,7 +116,6 @@ int probe_49lf040 (struct flashchip * flash)
*(volatile char *) (bios + 0x2AAA) = 0x55; *(volatile char *) (bios + 0x2AAA) = 0x55;
myusec_delay(10); myusec_delay(10);
*(volatile char *) (bios + 0x5555) = 0x90; *(volatile char *) (bios + 0x5555) = 0x90;
myusec_delay(10); myusec_delay(10);
id1 = *(volatile unsigned char *) bios; id1 = *(volatile unsigned char *) bios;
@ -165,6 +134,7 @@ int probe_49lf040 (struct flashchip * flash)
return 0; return 0;
} }
/* Chip erase only works in parallel programming mode for the 49lf040. /* Chip erase only works in parallel programming mode for the 49lf040.
* Use sector-erase instead */ * Use sector-erase instead */
int erase_49lf040 (struct flashchip * flash) int erase_49lf040 (struct flashchip * flash)
@ -190,7 +160,6 @@ int erase_49lf040 (struct flashchip * flash)
myusec_delay(10); myusec_delay(10);
Temp = bios + 0x5555; /* set up address to be C000:5555h */ Temp = bios + 0x5555; /* set up address to be C000:5555h */
*Temp = 0x10; /* write data 0x55 to the address */ *Temp = 0x10; /* write data 0x55 to the address */
myusec_delay(50000); myusec_delay(50000);
return(0); return(0);
@ -202,8 +171,6 @@ int write_49lf040 (struct flashchip * flash, unsigned char * buf)
int total_size = flash->total_size * 1024, page_size = flash->page_size; int total_size = flash->total_size * 1024, page_size = flash->page_size;
volatile char * bios = flash->virt_addr; volatile char * bios = flash->virt_addr;
// unprotect_49lf040 (bios);
// erase_49lf040(flash); /* Must be done sector-by-sector in LPC mode */
printf ("Programming Page: "); printf ("Programming Page: ");
for (i = 0; i < total_size/page_size; i++) { for (i = 0; i < total_size/page_size; i++) {
/* erase the page before programming */ /* erase the page before programming */
@ -218,7 +185,5 @@ int write_49lf040 (struct flashchip * flash, unsigned char * buf)
} }
printf("\n"); printf("\n");
// protect_49lf040 (bios);
return(0); return(0);
} }

4
util/flash_and_burn/udelay.c
View File

@ -7,7 +7,7 @@ unsigned long micro = 1;
void myusec_delay(int time) void myusec_delay(int time)
{ {
volatile unsigned long i; volatile unsigned long i;
for(i = 0; i < time * micro; i++) for (i = 0; i < time * micro; i++)
; ;
} }
@ -38,6 +38,4 @@ void myusec_calibrate_delay()
micro = count / timeusec; micro = count / timeusec;
fprintf(stderr, "%ldM loops per second\n", (unsigned long)micro); fprintf(stderr, "%ldM loops per second\n", (unsigned long)micro);
} }

74
util/flash_and_burn/w49f002u.c
View File

@ -22,7 +22,7 @@
* Reference: * Reference:
* W49F002U data sheet * W49F002U data sheet
* *
* $Id * $Id$
*/ */
#include <stdio.h> #include <stdio.h>
@ -35,14 +35,16 @@ int probe_49f002 (struct flashchip * flash)
volatile char * bios = flash->virt_addr; volatile char * bios = flash->virt_addr;
unsigned char id1, id2; unsigned char id1, id2;
*(bios + 0x5555) = 0xAA; *(volatile char *) (bios + 0x5555) = 0xAA;
*(bios + 0x2AAA) = 0x55; *(volatile char *) (bios + 0x2AAA) = 0x55;
*(bios + 0x5555) = 0x90; *(volatile char *) (bios + 0x5555) = 0x90;
id1 = *(volatile unsigned char *) bios; id1 = *(volatile unsigned char *) bios;
id2 = *(volatile unsigned char *) (bios + 0x01); id2 = *(volatile unsigned char *) (bios + 0x01);
*bios = 0xF0; *(volatile char *) (bios + 0x5555) = 0xAA;
*(volatile char *) (bios + 0x2AAA) = 0x55;
*(volatile char *) (bios + 0x5555) = 0xF0;
myusec_delay(10); myusec_delay(10);
@ -68,52 +70,36 @@ int erase_49f002 (struct flashchip * flash)
myusec_delay(100); myusec_delay(100);
toggle_ready_jedec(bios); toggle_ready_jedec(bios);
// while ((*bios & 0x40) != 0x40)
//;
#if 0
toggle_ready_jedec(bios);
*(bios + 0x0ffff) = 0x30;
*(bios + 0x1ffff) = 0x30;
*(bios + 0x2ffff) = 0x30;
*(bios + 0x37fff) = 0x30;
*(bios + 0x39fff) = 0x30;
*(bios + 0x3bfff) = 0x30;
#endif
return(0); return(0);
} }
int write_49f002 (struct flashchip * flash, unsigned char * buf) int write_49f002 (struct flashchip * flash, unsigned char * buf)
{ {
int i; int i;
int total_size = flash->total_size * 1024; int total_size = flash->total_size * 1024;
volatile char * bios = flash->virt_addr; volatile char * bios = flash->virt_addr;
volatile char * dst = bios; volatile char * dst = bios;
*bios = 0xF0; myusec_delay(10);
myusec_delay(10); erase_49f002(flash);
erase_49f002(flash);
//*bios = 0xF0;
#if 1
printf ("Programming Page: ");
for (i = 0; i < total_size; i++) {
/* write to the sector */
if ((i & 0xfff) == 0)
printf ("address: 0x%08lx", (unsigned long)i);
*(bios + 0x5555) = 0xAA;
*(bios + 0x2AAA) = 0x55;
*(bios + 0x5555) = 0xA0;
*dst++ = *buf++;
/* wait for Toggle bit ready */ printf ("Programming Page: ");
toggle_ready_jedec(dst); for (i = 0; i < total_size; i++) {
/* write to the sector */
if ((i & 0xfff) == 0)
printf ("address: 0x%08lx", (unsigned long)i);
*(bios + 0x5555) = 0xAA;
*(bios + 0x2AAA) = 0x55;
*(bios + 0x5555) = 0xA0;
*dst++ = *buf++;
if ((i & 0xfff) == 0) /* wait for Toggle bit ready */
printf ("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"); toggle_ready_jedec(dst);
}
#endif
printf("\n");
return(0); if ((i & 0xfff) == 0)
printf ("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
}
printf("\n");
return(0);
} }