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-rw-r--r--flash_rom.c16
-rw-r--r--jedec.c62
-rw-r--r--pm49fl004.c34
-rw-r--r--sst39sf020.c8
-rw-r--r--sst_fwhub.c55
-rw-r--r--w49f002u.c21
6 files changed, 49 insertions, 147 deletions
diff --git a/flash_rom.c b/flash_rom.c
index bf338ccb..35a9f509 100644
--- a/flash_rom.c
+++ b/flash_rom.c
@@ -194,7 +194,8 @@ int main(int argc, char *argv[])
FILE *image;
struct flashchip *flash;
int opt;
- int read_it = 0, write_it = 0, verify_it = 0, verbose = 0;
+ int read_it = 0, write_it = 0, erase_it = 0, verify_it = 0,
+ verbose = 0;
char *filename = NULL;
@@ -211,7 +212,7 @@ int main(int argc, char *argv[])
setbuf(stdout, NULL);
- while ((opt = getopt(argc, argv, "rwvVc:s:e:")) != EOF) {
+ while ((opt = getopt(argc, argv, "rwvVEc:s:e:")) != EOF) {
switch (opt) {
case 'r':
read_it = 1;
@@ -228,6 +229,9 @@ int main(int argc, char *argv[])
case 'V':
verbose = 1;
break;
+ case 'E':
+ erase_it = 1;
+ break;
case 's':
tempstr = strdup(optarg);
sscanf(tempstr,"%x",&exclude_start_position);
@@ -266,14 +270,18 @@ int main(int argc, char *argv[])
}
printf("Part is %s\n", flash->name);
- if (!filename) {
+ if (!filename && !erase_it) {
printf("OK, only ENABLING flash write, but NOT FLASHING\n");
return 0;
}
size = flash->total_size * 1024;
buf = (char *) calloc(size, sizeof(char));
- if (read_it) {
+ if (erase_it) {
+ printf("Erasing flash chip\n");
+ flash->erase(flash);
+ exit(0);
+ } else if (read_it) {
if ((image = fopen(filename, "w")) == NULL) {
perror(filename);
exit(1);
diff --git a/jedec.c b/jedec.c
index 8cab9449..353b17ab 100644
--- a/jedec.c
+++ b/jedec.c
@@ -62,26 +62,19 @@ int probe_jedec(struct flashchip *flash)
int erase_sector_jedec(volatile unsigned char *bios, unsigned int page)
{
- volatile unsigned char *Temp;
-
/* Issue the Sector Erase command */
- Temp = bios + 0x5555; /* set up address to be BASE:5555h */
- *Temp = 0xAA; /* write data 0xAA to the address */
+ *(volatile char *) (bios + 0x5555) = 0xAA;
myusec_delay(10);
- Temp = bios + 0x2AAA; /* set up address to be BASE:2AAAh */
- *Temp = 0x55; /* write data 0x55 to the address */
+ *(volatile char *) (bios + 0x2AAA) = 0x55;
myusec_delay(10);
- Temp = bios + 0x5555; /* set up address to be BASE:5555h */
- *Temp = 0x80; /* write data 0x80 to the address */
+ *(volatile char *) (bios + 0x5555) = 0x80;
myusec_delay(10);
- Temp = bios + 0x5555; /* set up address to be BASE:5555h */
- *Temp = 0xAA; /* write data 0xAA to the address */
+
+ *(volatile char *) (bios + 0x5555) = 0xAA;
myusec_delay(10);
- Temp = bios + 0x2AAA; /* set up address to be BASE:2AAAh */
- *Temp = 0x55; /* write data 0x55 to the address */
+ *(volatile char *) (bios + 0x2AAA) = 0x55;
myusec_delay(10);
- Temp = bios + page; /* set up address to be the current sector */
- *Temp = 0x30; /* write data 0x30 to the address */
+ *(volatile char *) (bios + page) = 0x30;
myusec_delay(10);
/* wait for Toggle bit ready */
@@ -92,26 +85,19 @@ int erase_sector_jedec(volatile unsigned char *bios, unsigned int page)
int erase_block_jedec(volatile unsigned char *bios, unsigned int block)
{
- volatile unsigned char *Temp;
-
/* Issue the Sector Erase command */
- Temp = bios + 0x5555; /* set up address to be BASE:5555h */
- *Temp = 0xAA; /* write data 0xAA to the address */
+ *(volatile char *) (bios + 0x5555) = 0xAA;
myusec_delay(10);
- Temp = bios + 0x2AAA; /* set up address to be BASE:2AAAh */
- *Temp = 0x55; /* write data 0x55 to the address */
+ *(volatile char *) (bios + 0x2AAA) = 0x55;
myusec_delay(10);
- Temp = bios + 0x5555; /* set up address to be BASE:5555h */
- *Temp = 0x80; /* write data 0x80 to the address */
+ *(volatile char *) (bios + 0x5555) = 0x80;
myusec_delay(10);
- Temp = bios + 0x5555; /* set up address to be BASE:5555h */
- *Temp = 0xAA; /* write data 0xAA to the address */
+
+ *(volatile char *) (bios + 0x5555) = 0xAA;
myusec_delay(10);
- Temp = bios + 0x2AAA; /* set up address to be BASE:2AAAh */
- *Temp = 0x55; /* write data 0x55 to the address */
+ *(volatile char *) (bios + 0x2AAA) = 0x55;
myusec_delay(10);
- Temp = bios + block; /* set up address to be the current sector */
- *Temp = 0x50; /* write data 0x30 to the address */
+ *(volatile char *) (bios + block) = 0x50;
myusec_delay(10);
/* wait for Toggle bit ready */
@@ -123,26 +109,20 @@ int erase_block_jedec(volatile unsigned char *bios, unsigned int block)
int erase_chip_jedec(struct flashchip *flash)
{
volatile unsigned char *bios = flash->virt_addr;
- volatile unsigned char *Temp;
/* Issue the JEDEC Chip Erase command */
- Temp = bios + 0x5555; /* set up address to be BASE:5555h */
- *Temp = 0xAA; /* write data 0xAA to the address */
+ *(volatile char *) (bios + 0x5555) = 0xAA;
myusec_delay(10);
- Temp = bios + 0x2AAA; /* set up address to be BASE:2AAAh */
- *Temp = 0x55; /* write data 0x55 to the address */
+ *(volatile char *) (bios + 0x2AAA) = 0x55;
myusec_delay(10);
- Temp = bios + 0x5555; /* set up address to be BASE:5555h */
- *Temp = 0x80; /* write data 0x80 to the address */
+ *(volatile char *) (bios + 0x5555) = 0x80;
myusec_delay(10);
- Temp = bios + 0x5555; /* set up address to be BASE:5555h */
- *Temp = 0xAA; /* write data 0xAA to the address */
+
+ *(volatile char *) (bios + 0x5555) = 0xAA;
myusec_delay(10);
- Temp = bios + 0x2AAA; /* set up address to be BASE:2AAAh */
- *Temp = 0x55; /* write data 0x55 to the address */
+ *(volatile char *) (bios + 0x2AAA) = 0x55;
myusec_delay(10);
- Temp = bios + 0x5555; /* set up address to be BASEy:5555h */
- *Temp = 0x10; /* write data 0x10 to the address */
+ *(volatile char *) (bios + 0x5555) = 0x10;
myusec_delay(10);
toggle_ready_jedec(bios);
diff --git a/pm49fl004.c b/pm49fl004.c
index a3f42faf..afcd55a0 100644
--- a/pm49fl004.c
+++ b/pm49fl004.c
@@ -27,43 +27,13 @@
#include "jedec.h"
#include "pm49fl004.h"
-static __inline__ int erase_block_49fl004(volatile unsigned char *bios,
- unsigned long address)
-{
- volatile unsigned char *Temp;
-
- Temp = bios + 0x5555; /* set up address to be C000:5555h */
- *Temp = 0xAA; /* write data 0xAA to the address */
- myusec_delay(10);
- Temp = bios + 0x2AAA; /* set up address to be C000:2AAAh */
- *Temp = 0x55; /* write data 0x55 to the address */
- myusec_delay(10);
- Temp = bios + 0x5555; /* set up address to be C000:5555h */
- *Temp = 0x80; /* write data 0x80 to the address */
- myusec_delay(10);
- Temp = bios + 0x5555; /* set up address to be C000:5555h */
- *Temp = 0xAA; /* write data 0xAA to the address */
- myusec_delay(10);
- Temp = bios + 0x2AAA; /* set up address to be C000:2AAAh */
- *Temp = 0x55; /* write data 0x55 to the address */
- myusec_delay(10);
- Temp = bios + address; /* set up address to be C000:5555h */
- *Temp = 0x50; /* write data 0x50 to the address */
-
- /* wait for Toggle bit ready */
- toggle_ready_jedec(bios);
-
- return (0);
-}
-
-
extern int exclude_start_page, exclude_end_page;
int write_49fl004(struct flashchip *flash, unsigned char *buf)
{
int i;
int total_size = flash->total_size * 1024, page_size =
- flash->page_size;
+ flash->page_size;
volatile char *bios = flash->virt_addr;
printf("Programming Page: ");
@@ -72,7 +42,7 @@ int write_49fl004(struct flashchip *flash, unsigned char *buf)
continue;
/* erase the page before programming */
- erase_block_49fl004(bios, i * page_size);
+ erase_block_jedec(bios, i * page_size);
/* write to the sector */
printf("%04d at address: 0x%08x", i, i * page_size);
diff --git a/sst39sf020.c b/sst39sf020.c
index 401247a6..97e87a1c 100644
--- a/sst39sf020.c
+++ b/sst39sf020.c
@@ -51,22 +51,18 @@ int write_39sf020(struct flashchip *flash, unsigned char *buf)
{
int i;
int total_size = flash->total_size * 1024, page_size =
- flash->page_size;
+ flash->page_size;
volatile char *bios = flash->virt_addr;
erase_chip_jedec(flash);
printf("Programming Page: ");
for (i = 0; i < total_size / page_size; i++) {
- /* erase the page before programming */
- //erase_sector_39sf020(bios, i * page_size);
-
/* write to the sector */
printf("%04d at address: 0x%08x", i, i * page_size);
write_sector_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");
fflush(stdout);
}
printf("\n");
diff --git a/sst_fwhub.c b/sst_fwhub.c
index d9dd4670..c064ed66 100644
--- a/sst_fwhub.c
+++ b/sst_fwhub.c
@@ -47,38 +47,14 @@ void print_sst_fwhub_status(unsigned char status)
}
/* probe_jedec works fine for probing */
-
int probe_sst_fwhub(struct flashchip *flash)
{
- volatile unsigned char *bios = flash->virt_addr;
- unsigned char id1, id2;
+ volatile unsigned char *bios;
size_t size = flash->total_size * 1024;
- /* Issue JEDEC Product ID Entry command */
- *(volatile char *) (bios + 0x5555) = 0xAA;
- myusec_delay(10);
- *(volatile char *) (bios + 0x2AAA) = 0x55;
- myusec_delay(10);
- *(volatile char *) (bios + 0x5555) = 0x90;
- myusec_delay(10);
-
- /* Read product ID */
- id1 = *(volatile unsigned char *) bios;
- id2 = *(volatile unsigned char *) (bios + 0x01);
-
- /* Issue JEDEC Product ID Exit command */
- *(volatile char *) (bios + 0x5555) = 0xAA;
- myusec_delay(10);
- *(volatile char *) (bios + 0x2AAA) = 0x55;
- myusec_delay(10);
- *(volatile char *) (bios + 0x5555) = 0xF0;
- myusec_delay(10);
- printf("%s: id1 0x%x, id2 0x%x\n", __FUNCTION__, id1, id2);
- if (id1 != flash->manufacture_id || id2 != flash->model_id)
+ if (probe_jedec(flash) == 0)
return 0;
- myusec_delay(10);
-
bios = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED,
flash->fd_mem, (off_t) (0xFFFFFFFF - 0x400000 - size + 1));
if (bios == MAP_FAILED) {
@@ -91,23 +67,15 @@ int probe_sst_fwhub(struct flashchip *flash)
return 1;
}
-unsigned char wait_sst_fwhub(volatile unsigned char *bios)
-{
- toggle_ready_jedec(bios);
- return 0;
-}
-
int erase_sst_fwhub_block(struct flashchip *flash, int offset)
{
volatile unsigned char *wrprotect = flash->virt_addr_2 + offset + 2;
- unsigned char status;
- //printf("Erase at %p\n", bios);
// clear write protect
*(wrprotect) = 0;
erase_block_jedec(flash->virt_addr, offset);
- status = wait_sst_fwhub(flash->virt_addr);
+ toggle_ready_jedec(flash->virt_addr);
return (0);
}
@@ -122,19 +90,6 @@ int erase_sst_fwhub(struct flashchip *flash)
return (0);
}
-void write_page_sst_fwhub(volatile char *bios, char *src,
- volatile char *dst, int page_size)
-{
- int i;
-
- for (i = 0; i < page_size; i++) {
- /* transfer data from source to destination */
- write_byte_program_jedec(bios, src, dst);
- src++;
- dst++;
- }
-}
-
int write_sst_fwhub(struct flashchip *flash, unsigned char *buf)
{
int i;
@@ -150,8 +105,8 @@ int write_sst_fwhub(struct flashchip *flash, unsigned char *buf)
printf("Programming Page: ");
for (i = 0; i < total_size / page_size; i++) {
printf("%04d at address: 0x%08x", i, i * page_size);
- write_page_sst_fwhub(bios, buf + i * page_size,
- bios + i * page_size, page_size);
+ write_sector_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("\n");
diff --git a/w49f002u.c b/w49f002u.c
index c6200d0a..5325076f 100644
--- a/w49f002u.c
+++ b/w49f002u.c
@@ -35,27 +35,20 @@
int write_49f002(struct flashchip *flash, unsigned char *buf)
{
int i;
- int total_size = flash->total_size * 1024;
+ int total_size = flash->total_size * 1024, page_size =
+ flash->page_size;
volatile char *bios = flash->virt_addr;
- volatile char *dst = bios;
erase_chip_jedec(flash);
printf("Programming Page: ");
for (i = 0; i < total_size; i++) {
/* write to the sector */
- if ((i & 0xfff) == 0)
- printf("address: 0x%08lx", (unsigned long) i);
- *(bios + 0x5555) = 0xAA;
- *(bios + 0x2AAA) = 0x55;
- *(bios + 0x5555) = 0xA0;
- *dst++ = *buf++;
-
- /* wait for Toggle bit ready */
- toggle_ready_jedec(dst);
-
- if ((i & 0xfff) == 0)
- printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
+ printf("%04d at address: 0x%08x ", i, i * page_size);
+ write_sector_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\b");
+ fflush(stdout);
}
printf("\n");
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-31 07:32:31 +0000