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

util/flash_and_burn/flash_rom.c

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

util/flash_and_burn/sst49lf040.c

@@ -23,8 +23,6 @@
  *
  * $Id$
  */
-			 
-
 #include <stdio.h>
 #include "flash.h"
 #include "jedec.h"
@@ -37,35 +35,7 @@
 #define RESET			0xFF
 #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.
 	 * Erase sector-by-sector instead. */
@@ -146,7 +116,6 @@ int probe_49lf040 (struct flashchip * flash)
         *(volatile char *) (bios + 0x2AAA) = 0x55;
         myusec_delay(10);
         *(volatile char *) (bios + 0x5555) = 0x90;
-
         myusec_delay(10);
 
         id1 = *(volatile unsigned char *) bios;
@@ -165,6 +134,7 @@ int probe_49lf040 (struct flashchip * flash)
 
         return 0;
 }
+
 /* Chip erase only works in parallel programming mode for the 49lf040.
  * Use sector-erase instead */
 int erase_49lf040 (struct flashchip * flash)
@@ -190,7 +160,6 @@ int erase_49lf040 (struct flashchip * flash)
 	myusec_delay(10);
         Temp  = bios + 0x5555; /* set up address to be C000:5555h      */
         *Temp = 0x10;       /* write data 0x55 to the address       */
-	
 	myusec_delay(50000);
 
 	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;
 	volatile char * bios = flash->virt_addr;
 
-//	unprotect_49lf040 (bios);
-//	erase_49lf040(flash); /* Must be done sector-by-sector in LPC mode */
 	printf ("Programming Page: ");
 	for (i = 0; i < total_size/page_size; i++) {
 		/* erase the page before programming */
@@ -218,7 +185,5 @@ int write_49lf040 (struct flashchip * flash, unsigned char * buf)
 	}
 	printf("\n");
 
-//	protect_49lf040 (bios);
-
 	return(0);
 }

util/flash_and_burn/udelay.c

@@ -38,6 +38,4 @@ void myusec_calibrate_delay()
 	micro = count / timeusec;
 
 	fprintf(stderr, "%ldM loops per second\n", (unsigned long)micro);
-
-
 }

util/flash_and_burn/w49f002u.c

@@ -22,7 +22,7 @@
  * Reference:
  *	W49F002U data sheet
  *
- * $Id
+ * $Id$
  */
 
 #include <stdio.h>
@@ -35,14 +35,16 @@ int probe_49f002 (struct flashchip * flash)
 	volatile char * bios = flash->virt_addr;
 	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;
 	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);
 
@@ -68,19 +70,6 @@ int erase_49f002 (struct flashchip * flash)
 	myusec_delay(100);
 	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);
 }
 
@@ -91,11 +80,9 @@ int write_49f002 (struct flashchip * flash, unsigned char * buf)
 	volatile char * bios = flash->virt_addr;
 	volatile char * dst = bios;
 
-    *bios = 0xF0;
 	myusec_delay(10);
 	erase_49f002(flash);
-    //*bios = 0xF0;
+
-#if 1
 	printf ("Programming Page: ");
 	for (i = 0; i < total_size; i++) {
 		/* write to the sector */
@@ -112,7 +99,6 @@ int write_49f002 (struct flashchip * flash, unsigned char * buf)
 		if ((i & 0xfff) == 0)
 			printf ("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
 	}
-#endif
 	printf("\n");
 
 	return(0);