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-rw-r--r--util/flash_and_burn/jedec.c68
-rw-r--r--util/flash_and_burn/jedec.h2
2 files changed, 38 insertions, 32 deletions
diff --git a/util/flash_and_burn/jedec.c b/util/flash_and_burn/jedec.c
index bae1ddc439..c76339caeb 100644
--- a/util/flash_and_burn/jedec.c
+++ b/util/flash_and_burn/jedec.c
@@ -139,39 +139,46 @@ void write_page_jedec(volatile char *bios, char *src, volatile char *dst,
toggle_ready_jedec(dst - 1);
}
-int write_sector_jedec(volatile char *bios,
- unsigned char *src,
+int wirte_byte_program_jedec(volatile unsigned char *bios, unsigned char *src,
+ volatile unsigned char *dst)
+{
+ volatile unsigned char *Temp;
+
+ 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 */
+ return 0;
+ }
+ /* 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_sector_jedec(volatile unsigned 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++;
+ wirte_byte_program_jedec(bios, src, dst);
}
return (0);
@@ -180,8 +187,8 @@ int write_sector_jedec(volatile char *bios,
int write_jedec(struct flashchip *flash, unsigned char *buf)
{
int i;
- int total_size = flash->total_size * 1024, page_size =
- flash->page_size;
+ int total_size = flash->total_size * 1024;
+ int page_size = flash->page_size;
volatile unsigned char *bios = flash->virt_addr;
erase_chip_jedec(flash);
@@ -194,8 +201,7 @@ int write_jedec(struct flashchip *flash, unsigned char *buf)
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("\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);
diff --git a/util/flash_and_burn/jedec.h b/util/flash_and_burn/jedec.h
index 1751b296de..4a86913189 100644
--- a/util/flash_and_burn/jedec.h
+++ b/util/flash_and_burn/jedec.h
@@ -5,7 +5,7 @@ extern int probe_jedec(struct flashchip *flash);
extern int erase_chip_jedec(struct flashchip *flash);
extern int write_jedec(struct flashchip *flash, unsigned char *buf);
extern int erase_sector_jedec(volatile char *bios, unsigned int page);
-extern int write_sector_jedec(volatile char *bios,
+extern int write_sector_jedec(volatile unsigned char *bios,
unsigned char *src,
volatile unsigned char *dst,
unsigned int page_size);