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
parent
e74ff463c4
commit
698f23db22
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@ -116,7 +116,7 @@ struct flashchip * probe_flash(struct flashchip * flash)
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}
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bios = mmap (0, size, PROT_WRITE | PROT_READ, MAP_SHARED,
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//fd_mem, (off_t) (0x100000000-size));
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fd_mem, (off_t) (0x0-size));
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fd_mem, (off_t) (0xffffffff-size+1));
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if (bios == MAP_FAILED) {
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perror("Error MMAP /dev/mem");
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exit(1);
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@ -23,8 +23,6 @@
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*
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* $Id$
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*/
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#include <stdio.h>
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#include "flash.h"
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#include "jedec.h"
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@ -37,35 +35,7 @@
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#define RESET 0xFF
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#define READ_ID 0x90
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static __inline__ void protect_49lf040 (volatile char * bios)
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{
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/* ask compiler not to optimize this */
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volatile unsigned char tmp;
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tmp = *(volatile unsigned char *) (bios + 0x1823);
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tmp = *(volatile unsigned char *) (bios + 0x1820);
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tmp = *(volatile unsigned char *) (bios + 0x1822);
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tmp = *(volatile unsigned char *) (bios + 0x0418);
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tmp = *(volatile unsigned char *) (bios + 0x041B);
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tmp = *(volatile unsigned char *) (bios + 0x0419);
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tmp = *(volatile unsigned char *) (bios + 0x040A);
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}
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static __inline__ void unprotect_49lf040 (volatile char * bios)
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{
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/* ask compiler not to optimize this */
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volatile unsigned char tmp;
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tmp = *(volatile unsigned char *) (bios + 0x1823);
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tmp = *(volatile unsigned char *) (bios + 0x1820);
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tmp = *(volatile unsigned char *) (bios + 0x1822);
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tmp = *(volatile unsigned char *) (bios + 0x0418);
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tmp = *(volatile unsigned char *) (bios + 0x041B);
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tmp = *(volatile unsigned char *) (bios + 0x0419);
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tmp = *(volatile unsigned char *) (bios + 0x041A);
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}
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int erase_sector_49lf040 (volatile char * bios, unsigned int page)
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static int erase_sector_49lf040 (volatile char * bios, unsigned int page)
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{
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/* Chip erase function does not exist for LPC mode on 49lf040.
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* Erase sector-by-sector instead. */
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@ -99,9 +69,9 @@ int erase_sector_49lf040 (volatile char * bios, unsigned int page)
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}
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static __inline__ int write_sector_49lf040(volatile char * bios,
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unsigned char * src,
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volatile unsigned char * dst,
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unsigned int page_size)
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unsigned char * src,
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volatile unsigned char * dst,
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unsigned int page_size)
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{
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int i;
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volatile char *Temp;
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@ -146,7 +116,6 @@ int probe_49lf040 (struct flashchip * flash)
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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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id1 = *(volatile unsigned char *) bios;
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@ -165,6 +134,7 @@ int probe_49lf040 (struct flashchip * flash)
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return 0;
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}
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/* Chip erase only works in parallel programming mode for the 49lf040.
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* Use sector-erase instead */
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int erase_49lf040 (struct flashchip * flash)
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@ -190,7 +160,6 @@ int erase_49lf040 (struct flashchip * flash)
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myusec_delay(10);
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Temp = bios + 0x5555; /* set up address to be C000:5555h */
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*Temp = 0x10; /* write data 0x55 to the address */
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myusec_delay(50000);
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return(0);
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@ -202,8 +171,6 @@ int write_49lf040 (struct flashchip * flash, unsigned char * buf)
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int total_size = flash->total_size * 1024, page_size = flash->page_size;
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volatile char * bios = flash->virt_addr;
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// unprotect_49lf040 (bios);
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// erase_49lf040(flash); /* Must be done sector-by-sector in LPC mode */
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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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@ -218,7 +185,5 @@ int write_49lf040 (struct flashchip * flash, unsigned char * buf)
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}
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printf("\n");
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// protect_49lf040 (bios);
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return(0);
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}
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@ -7,7 +7,7 @@ unsigned long micro = 1;
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void myusec_delay(int time)
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{
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volatile unsigned long i;
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for(i = 0; i < time * micro; i++)
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for (i = 0; i < time * micro; i++)
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;
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}
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@ -38,6 +38,4 @@ void myusec_calibrate_delay()
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micro = count / timeusec;
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fprintf(stderr, "%ldM loops per second\n", (unsigned long)micro);
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}
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@ -22,7 +22,7 @@
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* Reference:
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* W49F002U data sheet
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*
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* $Id
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* $Id$
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*/
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#include <stdio.h>
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@ -35,14 +35,16 @@ int probe_49f002 (struct flashchip * flash)
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volatile char * bios = flash->virt_addr;
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unsigned char id1, id2;
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*(bios + 0x5555) = 0xAA;
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*(bios + 0x2AAA) = 0x55;
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*(bios + 0x5555) = 0x90;
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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) = 0x90;
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id1 = *(volatile unsigned char *) bios;
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id2 = *(volatile unsigned char *) (bios + 0x01);
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*bios = 0xF0;
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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) = 0xF0;
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myusec_delay(10);
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@ -68,52 +70,36 @@ int erase_49f002 (struct flashchip * flash)
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myusec_delay(100);
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toggle_ready_jedec(bios);
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// while ((*bios & 0x40) != 0x40)
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//;
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#if 0
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toggle_ready_jedec(bios);
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*(bios + 0x0ffff) = 0x30;
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*(bios + 0x1ffff) = 0x30;
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*(bios + 0x2ffff) = 0x30;
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*(bios + 0x37fff) = 0x30;
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*(bios + 0x39fff) = 0x30;
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*(bios + 0x3bfff) = 0x30;
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#endif
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return(0);
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}
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int write_49f002 (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;
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volatile char * bios = flash->virt_addr;
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volatile char * dst = bios;
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int i;
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int total_size = flash->total_size * 1024;
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volatile char * bios = flash->virt_addr;
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volatile char * dst = bios;
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*bios = 0xF0;
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myusec_delay(10);
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erase_49f002(flash);
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//*bios = 0xF0;
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#if 1
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printf ("Programming Page: ");
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for (i = 0; i < total_size; i++) {
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/* write to the sector */
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if ((i & 0xfff) == 0)
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printf ("address: 0x%08lx", (unsigned long)i);
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*(bios + 0x5555) = 0xAA;
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*(bios + 0x2AAA) = 0x55;
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*(bios + 0x5555) = 0xA0;
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*dst++ = *buf++;
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myusec_delay(10);
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erase_49f002(flash);
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/* wait for Toggle bit ready */
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toggle_ready_jedec(dst);
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printf ("Programming Page: ");
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for (i = 0; i < total_size; i++) {
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/* write to the sector */
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if ((i & 0xfff) == 0)
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printf ("address: 0x%08lx", (unsigned long)i);
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*(bios + 0x5555) = 0xAA;
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*(bios + 0x2AAA) = 0x55;
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*(bios + 0x5555) = 0xA0;
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*dst++ = *buf++;
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if ((i & 0xfff) == 0)
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printf ("\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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#endif
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printf("\n");
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/* wait for Toggle bit ready */
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toggle_ready_jedec(dst);
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return(0);
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if ((i & 0xfff) == 0)
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printf ("\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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return(0);
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}
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