Add sst39vf020 support

Corresponding to coreboot v1 svn r606.

flash.h

@@ -28,6 +28,7 @@ struct flashchip {
 #define SST_29EE020A      0x10	/* SST 29EE020 device code	*/
 #define SST_28SF040       0x04    /* SST 29EE040 device code	*/
 #define SST_39SF020       0xB6    /* SST 39SF020  device        */
+#define SST_39VF020       0xD6    /* SST 39SF020  device        */
 
 #define WINBOND_ID        0xDA	/* Winbond Manufacture ID code	*/
 #define W_29C020C         0x45	/* Winbond w29c020c device code*/

flash_rom.c

@@ -50,6 +50,8 @@ struct flashchip flashchips[] = {
      probe_28sf040, erase_28sf040, write_28sf040},
     {"SST39SF020A", SST_ID,     SST_39SF020,  NULL, 256, 4096,
      probe_39sf020, erase_39sf020, write_39sf020},
+    {"SST39VF020",  SST_ID,     SST_39VF020,  NULL, 256, 4096,
+     probe_39sf020, erase_39sf020, write_39sf020},
     {"W29C020C",    WINBOND_ID, W_29C020C,    NULL, 256, 128,
      probe_jedec,   erase_jedec,   write_jedec},
     {"M29F400BT",   ST_ID, ST_M29F400BT ,    NULL, 512, 64*1024,

sst39sf020.c

@@ -81,26 +81,27 @@ static __inline__ write_sector_39sf020(volatile char * bios,
 	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;
-	  }
+		if (*dst != 0xff) {
+			printf("FATAL: dst %p not erased (val 0x%x\n", dst, *dst);
+			return;
+		}
 		/* transfer data from source to destination */
 		if (*src == 0xFF) {
 			dst++, src++;
 			/* If the data is 0xFF, don't program it */
 			continue;
 		}
-            Temp =   (bios + 0x5555); 
-            *Temp = 0xAA;                   
-            Temp =  bios + 0x2AAA; 
-            *Temp = 0x55; 
-            Temp =  bios + 0x5555; 
-            *Temp = 0xA0;                   
+		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%x val 0x%x src 0x%x\n",
-					dst, *dst, *src);
+		if (*dst != *src)
+			printf("BAD! dst 0x%x val 0x%x src 0x%x\n",
+			       dst, *dst, *src);
 		dst++, src++;
 	}
 }
@@ -137,9 +138,9 @@ int probe_39sf020 (struct flashchip * flash)
 int erase_39sf020 (struct flashchip * flash)
 {
 	volatile unsigned char * bios = flash->virt_addr;
-	volatile unsigned char *Temp; 
+	volatile unsigned char *Temp;
+
         /*  Issue the Sector Erase command to 39SF020   */
-	printf(__FUNCTION__ " bios is %p\n", bios);
         Temp  = bios + 0x5555; /* set up address to be C000:5555h      */
         *Temp = 0xAA;            /* write data 0xAA to the address       */
 	myusec_delay(10);