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-rw-r--r--sst39sf020.c40
1 files changed, 6 insertions, 34 deletions
diff --git a/sst39sf020.c b/sst39sf020.c
index fa35276..3d23adf 100644
--- a/sst39sf020.c
+++ b/sst39sf020.c
@@ -22,6 +22,8 @@
* Reference:
* 4 MEgabit (512K x 8) SuperFlash EEPROM, SST28SF040 data sheet
*
+ * ToDo: Consilidated to standard JEDEC code.
+ *
* $Id$
*/
@@ -37,34 +39,6 @@
#define RESET 0xFF
#define READ_ID 0x90
-static __inline__ void protect_39sf020 (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 + 0x040A);
-}
-
-static __inline__ void unprotect_39sf020 (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);
-}
-
static __inline__ int erase_sector_39sf020 (volatile char * bios, unsigned long address)
{
*bios = AUTO_PG_ERASE1;
@@ -77,9 +51,9 @@ static __inline__ int erase_sector_39sf020 (volatile char * bios, unsigned long
}
static __inline__ int write_sector_39sf020(volatile char * bios,
- unsigned char * src,
- volatile unsigned char * dst,
- unsigned int page_size)
+ unsigned char * src,
+ volatile unsigned char * dst,
+ unsigned int page_size)
{
int i;
volatile char *Temp;
@@ -177,8 +151,8 @@ int write_39sf020 (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_39sf020 (bios);
erase_39sf020(flash);
+
printf ("Programming Page: ");
for (i = 0; i < total_size/page_size; i++) {
/* erase the page before programming */
@@ -193,7 +167,5 @@ int write_39sf020 (struct flashchip * flash, unsigned char * buf)
}
printf("\n");
-// protect_39sf020 (bios);
-
return(0);
}
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