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Consolidate more jedec standard code

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Corresponding to flashrom svn r15 and coreboot v2 svn r1457.
This commit is contained in:
Ollie Lho
2004-03-20 16:46:10 +00:00
parent 73eca80d9b
commit 761bf1bdb7
27 changed files with 762 additions and 695 deletions
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194
jedec.c
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@ -28,116 +28,176 @@
#include "flash.h"
#include "jedec.h"
int probe_jedec (struct flashchip * flash)
int probe_jedec(struct flashchip *flash)
{
volatile char * bios = flash->virt_addr;
unsigned char id1, id2;
volatile char *bios = flash->virt_addr;
unsigned char id1, id2;
*(volatile char *) (bios + 0x5555) = 0xAA;
myusec_delay(10);
*(volatile char *) (bios + 0x2AAA) = 0x55;
myusec_delay(10);
*(volatile char *) (bios + 0x5555) = 0x90;
myusec_delay(10);
/* 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);
id1 = *(volatile unsigned char *) bios;
id2 = *(volatile unsigned char *) (bios + 0x01);
/* Read product ID */
id1 = *(volatile unsigned char *) bios;
id2 = *(volatile unsigned char *) (bios + 0x01);
*(volatile char *) (bios + 0x5555) = 0xAA;
myusec_delay(10);
*(volatile char *) (bios + 0x2AAA) = 0x55;
myusec_delay(10);
*(volatile char *) (bios + 0x5555) = 0xF0;
myusec_delay(10);
/* 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 1;
if (id1 == flash->manufacture_id && id2 == flash->model_id)
return 1;
return 0;
return 0;
}
int erase_sector_jedec (volatile char * bios, unsigned int page)
int erase_sector_jedec(volatile char *bios, unsigned int page)
{
/* Chip erase function does not exist for LPC mode on 49lf040.
* Erase sector-by-sector instead. */
volatile unsigned char *Temp;
/* Issue the Sector Erase command to 40LF040 */
Temp = bios + 0x5555; /* set up address to be C000:5555h */
*Temp = 0xAA; /* write data 0xAA to the address */
/* 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 C000:2AAAh */
*Temp = 0x55; /* write data 0x55 to the address */
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 C000:5555h */
*Temp = 0x80; /* write data 0x80 to the address */
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 C000:5555h */
*Temp = 0xAA; /* write data 0xAA to the address */
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 C000:2AAAh */
*Temp = 0x55; /* write data 0x55 to the address */
Temp = bios + 0x2AAA; /* set up address to be BASE:2AAAh */
*Temp = 0x55; /* write data 0x55 to the address */
myusec_delay(10);
Temp = bios + page; /* set up address to be the current sector */
*Temp = 0x30; /* write data 0x30 to the address */
Temp = bios + page; /* set up address to be the current sector */
*Temp = 0x30; /* write data 0x30 to the address */
myusec_delay(10);
/* wait for Toggle bit ready */
toggle_ready_jedec(bios);
return(0);
return (0);
}
int erase_jedec (struct flashchip * flash)
int erase_chip_jedec(struct flashchip *flash)
{
volatile unsigned char * bios = flash->virt_addr;
volatile unsigned char *bios = flash->virt_addr;
volatile unsigned char *Temp;
/* Issue the Sector Erase command to 39SF020 */
Temp = bios + 0x5555; /* set up address to be C000:5555h */
*Temp = 0xAA; /* write data 0xAA to the address */
/* Issue the JEDEC Chip 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 C000:2AAAh */
*Temp = 0x55; /* write data 0x55 to the address */
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 C000:5555h */
*Temp = 0x80; /* write data 0x80 to the address */
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 C000:5555h */
*Temp = 0xAA; /* write data 0xAA to the address */
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 C000:2AAAh */
*Temp = 0x55; /* write data 0x55 to the address */
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 C000:5555h */
*Temp = 0x10; /* write data 0x55 to the address */
Temp = bios + 0x5555; /* set up address to be BASEy:5555h */
*Temp = 0x10; /* write data 0x10 to the address */
myusec_delay(10);
toggle_ready_jedec(bios);
return(0);
return (0);
}
int write_jedec (struct flashchip * flash, unsigned char * buf)
void write_page_jedec(volatile char *bios, char *src, volatile char *dst,
int page_size)
{
int i;
int total_size = flash->total_size *1024, page_size = flash->page_size;
volatile unsigned char * bios = flash->virt_addr;
erase_jedec (flash);
if (*bios != (unsigned char ) 0xff) {
/* Issue JEDEC Data Unprotect comand */
*(volatile char *) (bios + 0x5555) = 0xAA;
*(volatile char *) (bios + 0x2AAA) = 0x55;
*(volatile char *) (bios + 0x5555) = 0xA0;
for (i = 0; i < page_size; i++) {
/* transfer data from source to destination */
*dst++ = *src++;
}
usleep(100);
toggle_ready_jedec(dst - 1);
}
int write_sector_jedec(volatile char *bios,
unsigned char *src,
volatile unsigned char *dst, unsigned int page_size)
{
int i;
volatile char *Temp;
for (i = 0; i < page_size; i++) {
if (*dst != 0xff) {
printf("FATAL: dst %p not erased (val 0x%x\n", dst,
*dst);
return (-1);
}
/* transfer data from source to destination */
if (*src == 0xFF) {
dst++, src++;
/* If the data is 0xFF, don't program it */
continue;
}
/* Issue JEDEC Byte Program command */
Temp = bios + 0x5555;
*Temp = 0xAA;
Temp = bios + 0x2AAA;
*Temp = 0x55;
Temp = bios + 0x5555;
*Temp = 0xA0;
*dst = *src;
toggle_ready_jedec(bios);
if (*dst != *src)
printf("BAD! dst 0x%lx val 0x%x src 0x%x\n",
(unsigned long) dst, *dst, *src);
dst++, src++;
}
return (0);
}
int write_jedec(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_chip_jedec(flash);
if (*bios != (unsigned char) 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_jedec(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("Programming Page: ");
for (i = 0; i < total_size / page_size; i++) {
printf("%04d at address: 0x%08x", i, i * page_size);
write_page_jedec(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_jedec (bios);
protect_jedec(bios);
return(0);
return (0);
}