Use helper functions to access flash chips
Right now we perform direct pointer manipulation without any abstraction
to read from and write to memory mapped flash chips. That makes it
impossible to drive any flasher which does not mmap the whole chip.
Using helper functions readb() and writeb() allows a driver for external
flash programmers like Paraflasher to replace readb and writeb with
calls to its own chip access routines.
This patch has the additional advantage of removing lots of unnecessary
casts to volatile uint8_t * and now-superfluous parentheses which caused
poor readability.
I used the semantic patcher Coccinelle to create this patch. The
semantic patch follows:
@@
expression a;
typedef uint8_t;
volatile uint8_t *b;
@@
- *(b) = (a);
+ writeb(a, b);
@@
volatile uint8_t *b;
@@
- *(b)
+ readb(b)
@@
type T;
T b;
@@
(
readb
|
writeb
)
(...,
- (T)
- (b)
+ b
)
In contrast to a sed script, the semantic patch performs type checking
before converting anything.
Tested-by: Joe Julian
Corresponding to flashrom svn r418 and coreboot v2 svn r3971.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: FENG Yu Ning <fengyuning1984@gmail.com>
diff --git a/82802ab.c b/82802ab.c
index 5e5b1a5..9bbee8d 100644
--- a/82802ab.c
+++ b/82802ab.c
@@ -49,23 +49,23 @@
uint8_t id1, id2;
#if 0
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
- *(volatile uint8_t *)(bios + 0x5555) = 0x90;
+ writeb(0xAA, bios + 0x5555);
+ writeb(0x55, bios + 0x2AAA);
+ writeb(0x90, bios + 0x5555);
#endif
- *bios = 0xff;
+ writeb(0xff, bios);
myusec_delay(10);
- *bios = 0x90;
+ writeb(0x90, bios);
myusec_delay(10);
- id1 = *(volatile uint8_t *)bios;
- id2 = *(volatile uint8_t *)(bios + 0x01);
+ id1 = readb(bios);
+ id2 = readb(bios + 0x01);
/* Leave ID mode */
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
- *(volatile uint8_t *)(bios + 0x5555) = 0xF0;
+ writeb(0xAA, bios + 0x5555);
+ writeb(0x55, bios + 0x2AAA);
+ writeb(0xF0, bios + 0x5555);
myusec_delay(10);
@@ -84,25 +84,25 @@
uint8_t status;
uint8_t id1, id2;
- *bios = 0x70;
- if ((*bios & 0x80) == 0) { // it's busy
- while ((*bios & 0x80) == 0) ;
+ writeb(0x70, bios);
+ if ((readb(bios) & 0x80) == 0) { // it's busy
+ while ((readb(bios) & 0x80) == 0) ;
}
- status = *bios;
+ status = readb(bios);
// put another command to get out of status register mode
- *bios = 0x90;
+ writeb(0x90, bios);
myusec_delay(10);
- id1 = *(volatile uint8_t *)bios;
- id2 = *(volatile uint8_t *)(bios + 0x01);
+ id1 = readb(bios);
+ id2 = readb(bios + 0x01);
// this is needed to jam it out of "read id" mode
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
- *(volatile uint8_t *)(bios + 0x5555) = 0xF0;
+ writeb(0xAA, bios + 0x5555);
+ writeb(0x55, bios + 0x2AAA);
+ writeb(0xF0, bios + 0x5555);
return status;
}
@@ -115,23 +115,23 @@
uint8_t status;
// clear status register
- *bios = 0x50;
+ writeb(0x50, bios);
//printf("Erase at %p\n", bios);
// clear write protect
//printf("write protect is at %p\n", (wrprotect));
//printf("write protect is 0x%x\n", *(wrprotect));
- *(wrprotect) = 0;
+ writeb(0, wrprotect);
//printf("write protect is 0x%x\n", *(wrprotect));
// now start it
- *(volatile uint8_t *)(bios) = 0x20;
- *(volatile uint8_t *)(bios) = 0xd0;
+ writeb(0x20, bios);
+ writeb(0xd0, bios);
myusec_delay(10);
// now let's see what the register is
status = wait_82802ab(flash->virtual_memory);
//print_82802ab_status(status);
for (j = 0; j < flash->page_size; j++) {
- if (*(bios + j) != 0xFF) {
+ if (readb(bios + j) != 0xFF) {
printf("BLOCK ERASE failed at 0x%x\n", offset);
return -1;
}
@@ -162,8 +162,8 @@
for (i = 0; i < page_size; i++) {
/* transfer data from source to destination */
- *dst = 0x40;
- *dst++ = *src++;
+ writeb(0x40, dst);
+ writeb(*src++, dst++);
wait_82802ab(bios);
}
}
diff --git a/am29f040b.c b/am29f040b.c
index fbe435b..78f417f 100644
--- a/am29f040b.c
+++ b/am29f040b.c
@@ -25,12 +25,12 @@
static __inline__ int erase_sector_29f040b(volatile uint8_t *bios,
unsigned long address)
{
- *(bios + 0x555) = 0xAA;
- *(bios + 0x2AA) = 0x55;
- *(bios + 0x555) = 0x80;
- *(bios + 0x555) = 0xAA;
- *(bios + 0x2AA) = 0x55;
- *(bios + address) = 0x30;
+ writeb(0xAA, bios + 0x555);
+ writeb(0x55, bios + 0x2AA);
+ writeb(0x80, bios + 0x555);
+ writeb(0xAA, bios + 0x555);
+ writeb(0x55, bios + 0x2AA);
+ writeb(0x30, bios + address);
sleep(2);
@@ -52,10 +52,10 @@
printf("0x%08lx", (unsigned long)dst -
(unsigned long)bios);
- *(bios + 0x555) = 0xAA;
- *(bios + 0x2AA) = 0x55;
- *(bios + 0x555) = 0xA0;
- *dst++ = *src++;
+ writeb(0xAA, bios + 0x555);
+ writeb(0x55, bios + 0x2AA);
+ writeb(0xA0, bios + 0x555);
+ writeb(*src++, dst++);
/* wait for Toggle bit ready */
toggle_ready_jedec(bios);
@@ -72,14 +72,14 @@
volatile uint8_t *bios = flash->virtual_memory;
uint8_t id1, id2;
- *(bios + 0x555) = 0xAA;
- *(bios + 0x2AA) = 0x55;
- *(bios + 0x555) = 0x90;
+ writeb(0xAA, bios + 0x555);
+ writeb(0x55, bios + 0x2AA);
+ writeb(0x90, bios + 0x555);
- id1 = *bios;
- id2 = *(bios + 0x01);
+ id1 = readb(bios);
+ id2 = readb(bios + 0x01);
- *bios = 0xF0;
+ writeb(0xF0, bios);
myusec_delay(10);
@@ -94,12 +94,12 @@
{
volatile uint8_t *bios = flash->virtual_memory;
- *(bios + 0x555) = 0xAA;
- *(bios + 0x2AA) = 0x55;
- *(bios + 0x555) = 0x80;
- *(bios + 0x555) = 0xAA;
- *(bios + 0x2AA) = 0x55;
- *(bios + 0x555) = 0x10;
+ writeb(0xAA, bios + 0x555);
+ writeb(0x55, bios + 0x2AA);
+ writeb(0x80, bios + 0x555);
+ writeb(0xAA, bios + 0x555);
+ writeb(0x55, bios + 0x2AA);
+ writeb(0x10, bios + 0x555);
myusec_delay(10);
toggle_ready_jedec(bios);
diff --git a/en29f002a.c b/en29f002a.c
index c70b37b..41dac7f 100644
--- a/en29f002a.c
+++ b/en29f002a.c
@@ -35,19 +35,19 @@
volatile uint8_t *bios = flash->virtual_memory;
uint8_t id1, id2;
- *(volatile uint8_t *)(bios + 0x555) = 0xAA;
- *(volatile uint8_t *)(bios + 0x2AA) = 0x55;
- *(volatile uint8_t *)(bios + 0x555) = 0x90;
+ writeb(0xAA, bios + 0x555);
+ writeb(0x55, bios + 0x2AA);
+ writeb(0x90, bios + 0x555);
myusec_delay(10);
- id1 = *(volatile uint8_t *)(bios + 0x100);
- id2 = *(volatile uint8_t *)(bios + 0x101);
+ id1 = readb(bios + 0x100);
+ id2 = readb(bios + 0x101);
/* exit by writing F0 anywhere? or the code below */
- *(volatile uint8_t *)(bios + 0x555) = 0xAA;
- *(volatile uint8_t *)(bios + 0x2AA) = 0x55;
- *(volatile uint8_t *)(bios + 0x555) = 0xF0;
+ writeb(0xAA, bios + 0x555);
+ writeb(0x55, bios + 0x2AA);
+ writeb(0xF0, bios + 0x555);
printf_debug("%s: id1 0x%02x, id2 0x%02x\n", __FUNCTION__, id1, id2);
@@ -68,19 +68,19 @@
volatile uint8_t *bios = flash->virtual_memory;
uint8_t id1, id2;
- *(volatile uint8_t *)(bios + 0x555) = 0xAA;
- *(volatile uint8_t *)(bios + 0xAAA) = 0x55;
- *(volatile uint8_t *)(bios + 0x555) = 0x90;
+ writeb(0xAA, bios + 0x555);
+ writeb(0x55, bios + 0xAAA);
+ writeb(0x90, bios + 0x555);
myusec_delay(10);
- id1 = *(volatile uint8_t *)(bios + 0x100);
- id2 = *(volatile uint8_t *)(bios + 0x101);
+ id1 = readb(bios + 0x100);
+ id2 = readb(bios + 0x101);
/* exit by writing F0 anywhere? or the code below */
- *(volatile uint8_t *)(bios + 0x555) = 0xAA;
- *(volatile uint8_t *)(bios + 0xAAA) = 0x55;
- *(volatile uint8_t *)(bios + 0x555) = 0xF0;
+ writeb(0xAA, bios + 0x555);
+ writeb(0x55, bios + 0xAAA);
+ writeb(0xF0, bios + 0x555);
printf_debug("%s: id1 0x%x, id2 0x%x\n", __FUNCTION__, id1, id2);
@@ -107,10 +107,10 @@
/* 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++;
+ writeb(0xAA, bios + 0x5555);
+ writeb(0x55, bios + 0x2AAA);
+ writeb(0xA0, bios + 0x5555);
+ writeb(*buf++, dst++);
/* wait for Toggle bit ready */
toggle_ready_jedec(dst);
diff --git a/flash.h b/flash.h
index 3985c60..b33e133 100644
--- a/flash.h
+++ b/flash.h
@@ -58,6 +58,36 @@
#define INL inl
#endif
+static inline void writeb(uint8_t b, volatile void *addr)
+{
+ *(volatile uint8_t *) addr = b;
+}
+
+static inline void writew(uint16_t b, volatile void *addr)
+{
+ *(volatile uint16_t *) addr = b;
+}
+
+static inline void writel(uint32_t b, volatile void *addr)
+{
+ *(volatile uint32_t *) addr = b;
+}
+
+static inline uint8_t readb(const volatile void *addr)
+{
+ return *(volatile uint8_t *) addr;
+}
+
+static inline uint16_t readw(const volatile void *addr)
+{
+ return *(volatile uint16_t *) addr;
+}
+
+static inline uint32_t readl(const volatile void *addr)
+{
+ return *(volatile uint32_t *) addr;
+}
+
#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
struct flashchip {
diff --git a/jedec.c b/jedec.c
index 9dbaa53..5403297 100644
--- a/jedec.c
+++ b/jedec.c
@@ -40,10 +40,10 @@
unsigned int i = 0;
uint8_t tmp1, tmp2;
- tmp1 = *dst & 0x40;
+ tmp1 = readb(dst) & 0x40;
while (i++ < 0xFFFFFFF) {
- tmp2 = *dst & 0x40;
+ tmp2 = readb(dst) & 0x40;
if (tmp1 == tmp2) {
break;
}
@@ -59,7 +59,7 @@
data &= 0x80;
while (i++ < 0xFFFFFFF) {
- tmp = *dst & 0x80;
+ tmp = readb(dst) & 0x80;
if (tmp == data) {
break;
}
@@ -68,21 +68,21 @@
void unprotect_jedec(volatile uint8_t *bios)
{
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
- *(volatile uint8_t *)(bios + 0x5555) = 0x80;
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
- *(volatile uint8_t *)(bios + 0x5555) = 0x20;
+ writeb(0xAA, bios + 0x5555);
+ writeb(0x55, bios + 0x2AAA);
+ writeb(0x80, bios + 0x5555);
+ writeb(0xAA, bios + 0x5555);
+ writeb(0x55, bios + 0x2AAA);
+ writeb(0x20, bios + 0x5555);
usleep(200);
}
void protect_jedec(volatile uint8_t *bios)
{
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
- *(volatile uint8_t *)(bios + 0x5555) = 0xA0;
+ writeb(0xAA, bios + 0x5555);
+ writeb(0x55, bios + 0x2AAA);
+ writeb(0xA0, bios + 0x5555);
usleep(200);
}
@@ -94,40 +94,40 @@
uint32_t largeid1, largeid2;
/* Issue JEDEC Product ID Entry command */
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
+ writeb(0xAA, bios + 0x5555);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
+ writeb(0x55, bios + 0x2AAA);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x5555) = 0x90;
+ writeb(0x90, bios + 0x5555);
/* Older chips may need up to 100 us to respond. The ATMEL 29C020
* needs 10 ms according to the data sheet.
*/
myusec_delay(10000);
/* Read product ID */
- id1 = *(volatile uint8_t *)bios;
- id2 = *(volatile uint8_t *)(bios + 0x01);
+ id1 = readb(bios);
+ id2 = readb(bios + 0x01);
largeid1 = id1;
largeid2 = id2;
/* Check if it is a continuation ID, this should be a while loop. */
if (id1 == 0x7F) {
largeid1 <<= 8;
- id1 = *(volatile uint8_t *)(bios + 0x100);
+ id1 = readb(bios + 0x100);
largeid1 |= id1;
}
if (id2 == 0x7F) {
largeid2 <<= 8;
- id2 = *(volatile uint8_t *)(bios + 0x101);
+ id2 = readb(bios + 0x101);
largeid2 |= id2;
}
/* Issue JEDEC Product ID Exit command */
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
+ writeb(0xAA, bios + 0x5555);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
+ writeb(0x55, bios + 0x2AAA);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x5555) = 0xF0;
+ writeb(0xF0, bios + 0x5555);
myusec_delay(40);
printf_debug("%s: id1 0x%02x, id2 0x%02x", __FUNCTION__, largeid1, largeid2);
@@ -143,18 +143,18 @@
int erase_sector_jedec(volatile uint8_t *bios, unsigned int page)
{
/* Issue the Sector Erase command */
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
+ writeb(0xAA, bios + 0x5555);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
+ writeb(0x55, bios + 0x2AAA);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x5555) = 0x80;
+ writeb(0x80, bios + 0x5555);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
+ writeb(0xAA, bios + 0x5555);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
+ writeb(0x55, bios + 0x2AAA);
myusec_delay(10);
- *(volatile uint8_t *)(bios + page) = 0x30;
+ writeb(0x30, bios + page);
myusec_delay(10);
/* wait for Toggle bit ready */
@@ -166,18 +166,18 @@
int erase_block_jedec(volatile uint8_t *bios, unsigned int block)
{
/* Issue the Sector Erase command */
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
+ writeb(0xAA, bios + 0x5555);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
+ writeb(0x55, bios + 0x2AAA);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x5555) = 0x80;
+ writeb(0x80, bios + 0x5555);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
+ writeb(0xAA, bios + 0x5555);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
+ writeb(0x55, bios + 0x2AAA);
myusec_delay(10);
- *(volatile uint8_t *)(bios + block) = 0x50;
+ writeb(0x50, bios + block);
myusec_delay(10);
/* wait for Toggle bit ready */
@@ -191,18 +191,18 @@
volatile uint8_t *bios = flash->virtual_memory;
/* Issue the JEDEC Chip Erase command */
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
+ writeb(0xAA, bios + 0x5555);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
+ writeb(0x55, bios + 0x2AAA);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x5555) = 0x80;
+ writeb(0x80, bios + 0x5555);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
+ writeb(0xAA, bios + 0x5555);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
+ writeb(0x55, bios + 0x2AAA);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x5555) = 0x10;
+ writeb(0x10, bios + 0x5555);
myusec_delay(10);
toggle_ready_jedec(bios);
@@ -219,15 +219,15 @@
retry:
/* Issue JEDEC Data Unprotect comand */
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
- *(volatile uint8_t *)(bios + 0x5555) = 0xA0;
+ writeb(0xAA, bios + 0x5555);
+ writeb(0x55, bios + 0x2AAA);
+ writeb(0xA0, bios + 0x5555);
/* transfer data from source to destination */
for (i = start_index; i < page_size; i++) {
/* If the data is 0xFF, don't program it */
if (*src != 0xFF)
- *dst = *src;
+ writeb(*src, dst);
dst++;
src++;
}
@@ -238,7 +238,7 @@
src = s;
ok = 1;
for (i = 0; i < page_size; i++) {
- if (*dst != *src) {
+ if (readb(dst) != *src) {
ok = 0;
break;
}
@@ -269,15 +269,15 @@
retry:
/* Issue JEDEC Byte Program command */
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
- *(volatile uint8_t *)(bios + 0x5555) = 0xA0;
+ writeb(0xAA, bios + 0x5555);
+ writeb(0x55, bios + 0x2AAA);
+ writeb(0xA0, bios + 0x5555);
/* transfer data from source to destination */
- *dst = *src;
+ writeb(*src, dst);
toggle_ready_jedec(bios);
- if (*dst != *src && tried++ < MAX_REFLASH_TRIES) {
+ if (readb(dst) != *src && tried++ < MAX_REFLASH_TRIES) {
goto retry;
}
diff --git a/m29f002.c b/m29f002.c
index 8afef79..f806a2d 100644
--- a/m29f002.c
+++ b/m29f002.c
@@ -22,12 +22,12 @@
int erase_m29f002(struct flashchip *flash) {
volatile uint8_t *bios = flash->virtual_memory;
- *(volatile uint8_t *)(bios + 0x555) = 0xaa;
- *(volatile uint8_t *)(bios + 0xaaa) = 0x55;
- *(volatile uint8_t *)(bios + 0x555) = 0x80;
- *(volatile uint8_t *)(bios + 0x555) = 0xaa;
- *(volatile uint8_t *)(bios + 0xaaa) = 0x55;
- *(volatile uint8_t *)(bios + 0x555) = 0x10;
+ writeb(0xaa, bios + 0x555);
+ writeb(0x55, bios + 0xaaa);
+ writeb(0x80, bios + 0x555);
+ writeb(0xaa, bios + 0x555);
+ writeb(0x55, bios + 0xaaa);
+ writeb(0x10, bios + 0x555);
myusec_delay(10);
toggle_ready_jedec(bios);
return 0;
@@ -35,21 +35,21 @@
static void rewrite_block(volatile uint8_t *bios, uint8_t *src, volatile uint8_t *dst, int size) {
/* erase */
- *(volatile uint8_t *)(bios + 0x555) = 0xaa;
- *(volatile uint8_t *)(bios + 0xaaa) = 0x55;
- *(volatile uint8_t *)(bios + 0x555) = 0x80;
- *(volatile uint8_t *)(bios + 0x555) = 0xaa;
- *(volatile uint8_t *)(bios + 0xaaa) = 0x55;
- *dst = 0x30;
+ writeb(0xaa, bios + 0x555);
+ writeb(0x55, bios + 0xaaa);
+ writeb(0x80, bios + 0x555);
+ writeb(0xaa, bios + 0x555);
+ writeb(0x55, bios + 0xaaa);
+ writeb(0x30, dst);
myusec_delay(10);
toggle_ready_jedec(bios);
/* program */
while (size--) {
- *(volatile uint8_t *)(bios + 0x555) = 0xaa;
- *(volatile uint8_t *)(bios + 0xaaa) = 0x55;
- *(volatile uint8_t *)(bios + 0x555) = 0xa0;
- *dst = *src;
+ writeb(0xaa, bios + 0x555);
+ writeb(0x55, bios + 0xaaa);
+ writeb(0xa0, bios + 0x555);
+ writeb(*src, dst);
toggle_ready_jedec(dst);
dst++;
src++;
diff --git a/m29f400bt.c b/m29f400bt.c
index d0b040d..2ca72e4 100644
--- a/m29f400bt.c
+++ b/m29f400bt.c
@@ -22,9 +22,9 @@
void protect_m29f400bt(volatile uint8_t *bios)
{
- *(volatile uint8_t *)(bios + 0xAAA) = 0xAA;
- *(volatile uint8_t *)(bios + 0x555) = 0x55;
- *(volatile uint8_t *)(bios + 0xAAA) = 0xA0;
+ writeb(0xAA, bios + 0xAAA);
+ writeb(0x55, bios + 0x555);
+ writeb(0xA0, bios + 0xAAA);
usleep(200);
}
@@ -35,18 +35,18 @@
int i;
for (i = 0; i < page_size; i++) {
- *(volatile uint8_t *)(bios + 0xAAA) = 0xAA;
- *(volatile uint8_t *)(bios + 0x555) = 0x55;
- *(volatile uint8_t *)(bios + 0xAAA) = 0xA0;
+ writeb(0xAA, bios + 0xAAA);
+ writeb(0x55, bios + 0x555);
+ writeb(0xA0, bios + 0xAAA);
/* transfer data from source to destination */
- *dst = *src;
+ writeb(*src, dst);
//*(volatile char *) (bios) = 0xF0;
//usleep(5);
toggle_ready_jedec(dst);
printf
("Value in the flash at address %p = %#x, want %#x\n",
- (uint8_t *) (dst - bios), *dst, *src);
+ (uint8_t *) (dst - bios), readb(dst), *src);
dst++;
src++;
}
@@ -57,21 +57,21 @@
volatile uint8_t *bios = flash->virtual_memory;
uint8_t id1, id2;
- *(volatile uint8_t *)(bios + 0xAAA) = 0xAA;
- *(volatile uint8_t *)(bios + 0x555) = 0x55;
- *(volatile uint8_t *)(bios + 0xAAA) = 0x90;
+ writeb(0xAA, bios + 0xAAA);
+ writeb(0x55, bios + 0x555);
+ writeb(0x90, bios + 0xAAA);
myusec_delay(10);
- id1 = *(volatile uint8_t *)bios;
+ id1 = readb(bios);
/* The data sheet says id2 is at (bios + 0x01) and id2 listed in
* flash.h does not match. It should be possible to use JEDEC probe.
*/
- id2 = *(volatile uint8_t *)(bios + 0x02);
+ id2 = readb(bios + 0x02);
- *(volatile uint8_t *)(bios + 0xAAA) = 0xAA;
- *(volatile uint8_t *)(bios + 0x555) = 0x55;
- *(volatile uint8_t *)(bios + 0xAAA) = 0xF0;
+ writeb(0xAA, bios + 0xAAA);
+ writeb(0x55, bios + 0x555);
+ writeb(0xF0, bios + 0xAAA);
myusec_delay(10);
@@ -87,13 +87,13 @@
{
volatile uint8_t *bios = flash->virtual_memory;
- *(volatile uint8_t *)(bios + 0xAAA) = 0xAA;
- *(volatile uint8_t *)(bios + 0x555) = 0x55;
- *(volatile uint8_t *)(bios + 0xAAA) = 0x80;
+ writeb(0xAA, bios + 0xAAA);
+ writeb(0x55, bios + 0x555);
+ writeb(0x80, bios + 0xAAA);
- *(volatile uint8_t *)(bios + 0xAAA) = 0xAA;
- *(volatile uint8_t *)(bios + 0x555) = 0x55;
- *(volatile uint8_t *)(bios + 0xAAA) = 0x10;
+ writeb(0xAA, bios + 0xAAA);
+ writeb(0x55, bios + 0x555);
+ writeb(0x10, bios + 0xAAA);
myusec_delay(10);
toggle_ready_jedec(bios);
@@ -104,14 +104,14 @@
int block_erase_m29f400bt(volatile uint8_t *bios, volatile uint8_t *dst)
{
- *(volatile uint8_t *)(bios + 0xAAA) = 0xAA;
- *(volatile uint8_t *)(bios + 0x555) = 0x55;
- *(volatile uint8_t *)(bios + 0xAAA) = 0x80;
+ writeb(0xAA, bios + 0xAAA);
+ writeb(0x55, bios + 0x555);
+ writeb(0x80, bios + 0xAAA);
- *(volatile uint8_t *)(bios + 0xAAA) = 0xAA;
- *(volatile uint8_t *)(bios + 0x555) = 0x55;
+ writeb(0xAA, bios + 0xAAA);
+ writeb(0x55, bios + 0x555);
//*(volatile uint8_t *) (bios + 0xAAA) = 0x10;
- *dst = 0x30;
+ writeb(0x30, dst);
myusec_delay(10);
toggle_ready_jedec(bios);
diff --git a/mx29f002.c b/mx29f002.c
index 30adab1..0e3f562 100644
--- a/mx29f002.c
+++ b/mx29f002.c
@@ -27,14 +27,14 @@
volatile uint8_t *bios = flash->virtual_memory;
uint8_t id1, id2;
- *(bios + 0x5555) = 0xAA;
- *(bios + 0x2AAA) = 0x55;
- *(bios + 0x5555) = 0x90;
+ writeb(0xAA, bios + 0x5555);
+ writeb(0x55, bios + 0x2AAA);
+ writeb(0x90, bios + 0x5555);
- id1 = *(volatile uint8_t *)bios;
- id2 = *(volatile uint8_t *)(bios + 0x01);
+ id1 = readb(bios);
+ id2 = readb(bios + 0x01);
- *bios = 0xF0;
+ writeb(0xF0, bios);
myusec_delay(10);
@@ -49,13 +49,13 @@
{
volatile uint8_t *bios = flash->virtual_memory;
- *(bios + 0x555) = 0xF0;
- *(bios + 0x555) = 0xAA;
- *(bios + 0x2AA) = 0x55;
- *(bios + 0x555) = 0x80;
- *(bios + 0x555) = 0xAA;
- *(bios + 0x2AA) = 0x55;
- *(bios + 0x555) = 0x10;
+ writeb(0xF0, bios + 0x555);
+ writeb(0xAA, bios + 0x555);
+ writeb(0x55, bios + 0x2AA);
+ writeb(0x80, bios + 0x555);
+ writeb(0xAA, bios + 0x555);
+ writeb(0x55, bios + 0x2AA);
+ writeb(0x10, bios + 0x555);
myusec_delay(100);
toggle_ready_jedec(bios);
@@ -65,12 +65,12 @@
#if 0
toggle_ready_jedec(bios);
- *(bios + 0x0ffff) = 0x30;
- *(bios + 0x1ffff) = 0x30;
- *(bios + 0x2ffff) = 0x30;
- *(bios + 0x37fff) = 0x30;
- *(bios + 0x39fff) = 0x30;
- *(bios + 0x3bfff) = 0x30;
+ writeb(0x30, bios + 0x0ffff);
+ writeb(0x30, bios + 0x1ffff);
+ writeb(0x30, bios + 0x2ffff);
+ writeb(0x30, bios + 0x37fff);
+ writeb(0x30, bios + 0x39fff);
+ writeb(0x30, bios + 0x3bfff);
#endif
return 0;
@@ -83,7 +83,7 @@
volatile uint8_t *bios = flash->virtual_memory;
volatile uint8_t *dst = bios;
- *bios = 0xF0;
+ writeb(0xF0, bios);
myusec_delay(10);
erase_29f002(flash);
//*bios = 0xF0;
@@ -93,10 +93,10 @@
/* 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++;
+ writeb(0xAA, bios + 0x5555);
+ writeb(0x55, bios + 0x2AAA);
+ writeb(0xA0, bios + 0x5555);
+ writeb(*buf++, dst++);
/* wait for Toggle bit ready */
toggle_ready_jedec(dst);
diff --git a/pm49fl00x.c b/pm49fl00x.c
index fe8b974..e2ca7b6 100644
--- a/pm49fl00x.c
+++ b/pm49fl00x.c
@@ -35,7 +35,7 @@
if (block_size == 16384 && i % 2)
continue;
- *(bios + (i * block_size) + 2) = bits;
+ writeb(bits, bios + (i * block_size) + 2);
}
}
diff --git a/sharplhf00l04.c b/sharplhf00l04.c
index 7db14fe..06a14ef 100644
--- a/sharplhf00l04.c
+++ b/sharplhf00l04.c
@@ -41,23 +41,23 @@
#if 0
/* Enter ID mode */
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
- *(volatile uint8_t *)(bios + 0x5555) = 0x90;
+ writeb(0xAA, bios + 0x5555);
+ writeb(0x55, bios + 0x2AAA);
+ writeb(0x90, bios + 0x5555);
#endif
- *bios = 0xff;
+ writeb(0xff, bios);
myusec_delay(10);
- *bios = 0x90;
+ writeb(0x90, bios);
myusec_delay(10);
- id1 = *(volatile uint8_t *)bios;
- id2 = *(volatile uint8_t *)(bios + 0x01);
+ id1 = readb(bios);
+ id2 = readb(bios + 0x01);
/* Leave ID mode */
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
- *(volatile uint8_t *)(bios + 0x5555) = 0xF0;
+ writeb(0xAA, bios + 0x5555);
+ writeb(0x55, bios + 0x2AAA);
+ writeb(0xF0, bios + 0x5555);
myusec_delay(10);
@@ -76,25 +76,25 @@
uint8_t status;
uint8_t id1, id2;
- *bios = 0x70;
- if ((*bios & 0x80) == 0) { // it's busy
- while ((*bios & 0x80) == 0) ;
+ writeb(0x70, bios);
+ if ((readb(bios) & 0x80) == 0) { // it's busy
+ while ((readb(bios) & 0x80) == 0) ;
}
- status = *bios;
+ status = readb(bios);
// put another command to get out of status register mode
- *bios = 0x90;
+ writeb(0x90, bios);
myusec_delay(10);
- id1 = *(volatile uint8_t *)bios;
- id2 = *(volatile uint8_t *)(bios + 0x01);
+ id1 = readb(bios);
+ id2 = readb(bios + 0x01);
// this is needed to jam it out of "read id" mode
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
- *(volatile uint8_t *)(bios + 0x5555) = 0xF0;
+ writeb(0xAA, bios + 0x5555);
+ writeb(0x55, bios + 0x2AAA);
+ writeb(0xF0, bios + 0x5555);
return status;
}
@@ -106,19 +106,19 @@
uint8_t status;
// clear status register
- *bios = 0x50;
+ writeb(0x50, bios);
printf("Erase at %p\n", bios);
status = wait_lhf00l04(flash->virtual_memory);
print_lhf00l04_status(status);
// clear write protect
printf("write protect is at %p\n", (wrprotect));
- printf("write protect is 0x%x\n", *(wrprotect));
- *(wrprotect) = 0;
- printf("write protect is 0x%x\n", *(wrprotect));
+ printf("write protect is 0x%x\n", readb(wrprotect));
+ writeb(0, wrprotect);
+ printf("write protect is 0x%x\n", readb(wrprotect));
// now start it
- *(volatile uint8_t *)(bios) = 0x20;
- *(volatile uint8_t *)(bios) = 0xd0;
+ writeb(0x20, bios);
+ writeb(0xd0, bios);
myusec_delay(10);
// now let's see what the register is
status = wait_lhf00l04(flash->virtual_memory);
@@ -149,8 +149,8 @@
for (i = 0; i < page_size; i++) {
/* transfer data from source to destination */
- *dst = 0x40;
- *dst++ = *src++;
+ writeb(0x40, dst);
+ writeb(*src++, dst++);
wait_lhf00l04(bios);
}
}
@@ -163,7 +163,7 @@
volatile uint8_t *bios = flash->virtual_memory;
erase_lhf00l04(flash);
- if (*bios != 0xff) {
+ if (readb(bios) != 0xff) {
printf("ERASE FAILED!\n");
return -1;
}
diff --git a/sst28sf040.c b/sst28sf040.c
index 89be9d8..ee8ee80 100644
--- a/sst28sf040.c
+++ b/sst28sf040.c
@@ -35,13 +35,13 @@
/* ask compiler not to optimize this */
volatile uint8_t tmp;
- tmp = *(volatile uint8_t *)(bios + 0x1823);
- tmp = *(volatile uint8_t *)(bios + 0x1820);
- tmp = *(volatile uint8_t *)(bios + 0x1822);
- tmp = *(volatile uint8_t *)(bios + 0x0418);
- tmp = *(volatile uint8_t *)(bios + 0x041B);
- tmp = *(volatile uint8_t *)(bios + 0x0419);
- tmp = *(volatile uint8_t *)(bios + 0x040A);
+ tmp = readb(bios + 0x1823);
+ tmp = readb(bios + 0x1820);
+ tmp = readb(bios + 0x1822);
+ tmp = readb(bios + 0x0418);
+ tmp = readb(bios + 0x041B);
+ tmp = readb(bios + 0x0419);
+ tmp = readb(bios + 0x040A);
}
static __inline__ void unprotect_28sf040(volatile uint8_t *bios)
@@ -49,20 +49,20 @@
/* ask compiler not to optimize this */
volatile uint8_t tmp;
- tmp = *(volatile uint8_t *)(bios + 0x1823);
- tmp = *(volatile uint8_t *)(bios + 0x1820);
- tmp = *(volatile uint8_t *)(bios + 0x1822);
- tmp = *(volatile uint8_t *)(bios + 0x0418);
- tmp = *(volatile uint8_t *)(bios + 0x041B);
- tmp = *(volatile uint8_t *)(bios + 0x0419);
- tmp = *(volatile uint8_t *)(bios + 0x041A);
+ tmp = readb(bios + 0x1823);
+ tmp = readb(bios + 0x1820);
+ tmp = readb(bios + 0x1822);
+ tmp = readb(bios + 0x0418);
+ tmp = readb(bios + 0x041B);
+ tmp = readb(bios + 0x0419);
+ tmp = readb(bios + 0x041A);
}
static __inline__ int erase_sector_28sf040(volatile uint8_t *bios,
unsigned long address)
{
- *bios = AUTO_PG_ERASE1;
- *(bios + address) = AUTO_PG_ERASE2;
+ writeb(AUTO_PG_ERASE1, bios);
+ writeb(AUTO_PG_ERASE2, bios + address);
/* wait for Toggle bit ready */
toggle_ready_jedec(bios);
@@ -85,8 +85,8 @@
continue;
}
/*issue AUTO PROGRAM command */
- *dst = AUTO_PGRM;
- *dst++ = *src++;
+ writeb(AUTO_PGRM, dst);
+ writeb(*src++, dst++);
/* wait for Toggle bit ready */
toggle_ready_jedec(bios);
@@ -100,16 +100,16 @@
volatile uint8_t *bios = flash->virtual_memory;
uint8_t id1, id2;
- *bios = RESET;
+ writeb(RESET, bios);
myusec_delay(10);
- *bios = READ_ID;
+ writeb(READ_ID, bios);
myusec_delay(10);
- id1 = *(volatile uint8_t *)bios;
+ id1 = readb(bios);
myusec_delay(10);
- id2 = *(volatile uint8_t *)(bios + 0x01);
+ id2 = readb(bios + 0x01);
- *bios = RESET;
+ writeb(RESET, bios);
myusec_delay(10);
printf_debug("%s: id1 0x%02x, id2 0x%02x\n", __FUNCTION__, id1, id2);
@@ -124,8 +124,8 @@
volatile uint8_t *bios = flash->virtual_memory;
unprotect_28sf040(bios);
- *bios = CHIP_ERASE;
- *bios = CHIP_ERASE;
+ writeb(CHIP_ERASE, bios);
+ writeb(CHIP_ERASE, bios);
protect_28sf040(bios);
myusec_delay(10);
diff --git a/sst49lfxxxc.c b/sst49lfxxxc.c
index 2c9a87b..397ee61 100644
--- a/sst49lfxxxc.c
+++ b/sst49lfxxxc.c
@@ -50,20 +50,20 @@
//printf("bios=0x%08lx\n", (unsigned long)bios);
for (i = 0; left > 65536; i++, left -= 65536) {
//printf("lockbits at address=0x%08lx is 0x%01x\n", (unsigned long)0xFFC00000 - size + (i * 65536) + 2, *(bios + (i * 65536) + 2) );
- *(bios + (i * 65536) + 2) = bits;
+ writeb(bits, bios + (i * 65536) + 2);
}
address = i * 65536;
//printf("lockbits at address=0x%08lx is 0x%01x\n", (unsigned long)0xFFc00000 - size + address + 2, *(bios + address + 2) );
- *(bios + address + 2) = bits;
+ writeb(bits, bios + address + 2);
address += 32768;
//printf("lockbits at address=0x%08lx is 0x%01x\n", (unsigned long)0xFFc00000 - size + address + 2, *(bios + address + 2) );
- *(bios + address + 2) = bits;
+ writeb(bits, bios + address + 2);
address += 8192;
//printf("lockbits at address=0x%08lx is 0x%01x\n", (unsigned long)0xFFc00000 - size + address + 2, *(bios + address + 2) );
- *(bios + address + 2) = bits;
+ writeb(bits, bios + address + 2);
address += 8192;
//printf("lockbits at address=0x%08lx is 0x%01x\n", (unsigned long)0xFFc00000 - size + address + 2, *(bios + address + 2) );
- *(bios + address + 2) = bits;
+ writeb(bits, bios + address + 2);
return 0;
}
@@ -73,14 +73,14 @@
{
unsigned char status;
- *bios = SECTOR_ERASE;
- *(bios + address) = ERASE;
+ writeb(SECTOR_ERASE, bios);
+ writeb(ERASE, bios + address);
do {
- status = *bios;
+ status = readb(bios);
if (status & (STATUS_ESS | STATUS_BPS)) {
printf("sector erase FAILED at address=0x%08lx status=0x%01x\n", (unsigned long)bios + address, status);
- *bios = CLEAR_STATUS;
+ writeb(CLEAR_STATUS, bios);
return (-1);
}
} while (!(status & STATUS_WSMS));
@@ -96,7 +96,7 @@
int i;
unsigned char status;
- *bios = CLEAR_STATUS;
+ writeb(CLEAR_STATUS, bios);
for (i = 0; i < page_size; i++) {
/* transfer data from source to destination */
if (*src == 0xFF) {
@@ -105,14 +105,14 @@
continue;
}
/*issue AUTO PROGRAM command */
- *bios = AUTO_PGRM;
- *dst++ = *src++;
+ writeb(AUTO_PGRM, bios);
+ writeb(*src++, dst++);
do {
- status = *bios;
+ status = readb(bios);
if (status & (STATUS_ESS | STATUS_BPS)) {
printf("sector write FAILED at address=0x%08lx status=0x%01x\n", (unsigned long)dst, status);
- *bios = CLEAR_STATUS;
+ writeb(CLEAR_STATUS, bios);
return (-1);
}
} while (!(status & STATUS_WSMS));
@@ -127,13 +127,13 @@
uint8_t id1, id2;
- *bios = RESET;
+ writeb(RESET, bios);
- *bios = READ_ID;
- id1 = *(volatile uint8_t *)bios;
- id2 = *(volatile uint8_t *)(bios + 0x01);
+ writeb(READ_ID, bios);
+ id1 = readb(bios);
+ id2 = readb(bios + 0x01);
- *bios = RESET;
+ writeb(RESET, bios);
printf_debug("%s: id1 0x%02x, id2 0x%02x\n", __FUNCTION__, id1, id2);
@@ -157,7 +157,7 @@
if (erase_sector_49lfxxxc(bios, i) != 0)
return (-1);
- *bios = RESET;
+ writeb(RESET, bios);
return 0;
}
@@ -183,7 +183,7 @@
}
printf("\n");
- *bios = RESET;
+ writeb(RESET, bios);
return 0;
}
diff --git a/sst_fwhub.c b/sst_fwhub.c
index 455107e..2c2992e 100644
--- a/sst_fwhub.c
+++ b/sst_fwhub.c
@@ -51,7 +51,7 @@
volatile uint8_t *wrprotect = flash->virtual_registers + offset + 2;
// clear write protect
- *(wrprotect) = 0;
+ writeb(0, wrprotect);
erase_block_jedec(flash->virtual_memory, offset);
toggle_ready_jedec(flash->virtual_memory);
diff --git a/stm50flw0x0x.c b/stm50flw0x0x.c
index c06bab9..edb76cc 100644
--- a/stm50flw0x0x.c
+++ b/stm50flw0x0x.c
@@ -33,9 +33,9 @@
void protect_stm50flw0x0x(volatile uint8_t *bios)
{
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
- *(volatile uint8_t *)(bios + 0x5555) = 0xA0;
+ writeb(0xAA, bios + 0x5555);
+ writeb(0x55, bios + 0x2AAA);
+ writeb(0xA0, bios + 0x5555);
usleep(200);
}
@@ -47,37 +47,37 @@
uint32_t largeid1, largeid2;
/* Issue JEDEC Product ID Entry command */
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
+ writeb(0xAA, bios + 0x5555);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
+ writeb(0x55, bios + 0x2AAA);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x5555) = 0x90;
+ writeb(0x90, bios + 0x5555);
myusec_delay(40);
/* Read product ID */
- id1 = *(volatile uint8_t *)bios;
- id2 = *(volatile uint8_t *)(bios + 0x01);
+ id1 = readb(bios);
+ id2 = readb(bios + 0x01);
largeid1 = id1;
largeid2 = id2;
/* Check if it is a continuation ID, this should be a while loop. */
if (id1 == 0x7F) {
largeid1 <<= 8;
- id1 = *(volatile uint8_t *)(bios + 0x100);
+ id1 = readb(bios + 0x100);
largeid1 |= id1;
}
if (id2 == 0x7F) {
largeid2 <<= 8;
- id2 = *(volatile uint8_t *)(bios + 0x101);
+ id2 = readb(bios + 0x101);
largeid2 |= id2;
}
/* Issue JEDEC Product ID Exit command */
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
+ writeb(0xAA, bios + 0x5555);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
+ writeb(0x55, bios + 0x2AAA);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x5555) = 0xF0;
+ writeb(0xF0, bios + 0x5555);
myusec_delay(40);
printf_debug("%s: id1 0x%02x, id2 0x%02x\n", __FUNCTION__, largeid1,
@@ -96,21 +96,21 @@
uint8_t id1;
// id2;
- *bios = 0x70;
- if ((*bios & 0x80) == 0) { // it's busy
- while ((*bios & 0x80) == 0) ;
+ writeb(0x70, bios);
+ if ((readb(bios) & 0x80) == 0) { // it's busy
+ while ((readb(bios) & 0x80) == 0) ;
}
// put another command to get out of status register mode
- *bios = 0x90;
+ writeb(0x90, bios);
myusec_delay(10);
- id1 = *(volatile uint8_t *)bios;
+ id1 = readb(bios);
// this is needed to jam it out of "read id" mode
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
- *(volatile uint8_t *)(bios + 0x5555) = 0xF0;
+ writeb(0xAA, bios + 0x5555);
+ writeb(0x55, bios + 0x2AAA);
+ writeb(0xF0, bios + 0x5555);
}
/*
@@ -142,8 +142,8 @@
// unlock each 4k-sector
for (j = 0; j < 0x10000; j += 0x1000) {
printf_debug("unlocking at 0x%x\n", offset + j);
- *(flash_addr + offset + j) = unlock_sector;
- if (*(flash_addr + offset + j) != unlock_sector) {
+ writeb(unlock_sector, flash_addr + offset + j);
+ if (readb(flash_addr + offset + j) != unlock_sector) {
printf("Cannot unlock sector @ 0x%x\n",
offset + j);
return -1;
@@ -151,8 +151,8 @@
}
} else {
printf_debug("unlocking at 0x%x\n", offset);
- *(flash_addr + offset) = unlock_sector;
- if (*(flash_addr + offset) != unlock_sector) {
+ writeb(unlock_sector, flash_addr + offset);
+ if (readb(flash_addr + offset) != unlock_sector) {
printf("Cannot unlock sector @ 0x%x\n", offset);
return -1;
}
@@ -167,17 +167,17 @@
int j;
// clear status register
- *bios = 0x50;
+ writeb(0x50, bios);
printf_debug("Erase at %p\n", bios);
// now start it
- *(volatile uint8_t *)(bios) = 0x20;
- *(volatile uint8_t *)(bios) = 0xd0;
+ writeb(0x20, bios);
+ writeb(0xd0, bios);
myusec_delay(10);
wait_stm50flw0x0x(flash->virtual_memory);
for (j = 0; j < flash->page_size; j++) {
- if (*(bios + j) != 0xFF) {
+ if (readb(bios + j) != 0xFF) {
printf("Erase failed at 0x%x\n", offset + j);
return -1;
}
@@ -197,8 +197,8 @@
/* transfer data from source to destination */
for (i = 0; i < page_size; i++) {
- *dst = 0x40;
- *dst++ = *src++;
+ writeb(0x40, dst);
+ writeb(*src++, dst++);
wait_stm50flw0x0x(bios);
}
@@ -210,7 +210,7 @@
dst = d;
src = s;
for (i = 0; i < page_size; i++) {
- if (*dst != *src) {
+ if (readb(dst) != *src) {
rc = -1;
break;
}
diff --git a/w29ee011.c b/w29ee011.c
index fa3aa7c..80a4e66 100644
--- a/w29ee011.c
+++ b/w29ee011.c
@@ -37,29 +37,29 @@
}
/* Issue JEDEC Product ID Entry command */
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
+ writeb(0xAA, bios + 0x5555);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
+ writeb(0x55, bios + 0x2AAA);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x5555) = 0x80;
+ writeb(0x80, bios + 0x5555);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
+ writeb(0xAA, bios + 0x5555);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
+ writeb(0x55, bios + 0x2AAA);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x5555) = 0x60;
+ writeb(0x60, bios + 0x5555);
myusec_delay(10);
/* Read product ID */
- id1 = *(volatile uint8_t *)bios;
- id2 = *(volatile uint8_t *)(bios + 0x01);
+ id1 = readb(bios);
+ id2 = readb(bios + 0x01);
/* Issue JEDEC Product ID Exit command */
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
+ writeb(0xAA, bios + 0x5555);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
+ writeb(0x55, bios + 0x2AAA);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x5555) = 0xF0;
+ writeb(0xF0, bios + 0x5555);
myusec_delay(10);
printf_debug("%s: id1 0x%02x, id2 0x%02x\n", __FUNCTION__, id1, id2);
diff --git a/w39v040c.c b/w39v040c.c
index 37549d7..3a0f430 100644
--- a/w39v040c.c
+++ b/w39v040c.c
@@ -26,22 +26,22 @@
volatile uint8_t *bios = flash->virtual_memory;
uint8_t id1, id2, lock;
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
+ writeb(0xAA, bios + 0x5555);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
+ writeb(0x55, bios + 0x2AAA);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x5555) = 0x90;
+ writeb(0x90, bios + 0x5555);
myusec_delay(10);
- id1 = *(volatile uint8_t *)bios;
- id2 = *(volatile uint8_t *)(bios + 1);
- lock = *(volatile uint8_t *)(bios + 0xfff2);
+ id1 = readb(bios);
+ id2 = readb(bios + 1);
+ lock = readb(bios + 0xfff2);
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
+ writeb(0xAA, bios + 0x5555);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
+ writeb(0x55, bios + 0x2AAA);
myusec_delay(10);
- *(volatile uint8_t *)(bios + 0x5555) = 0xF0;
+ writeb(0xF0, bios + 0x5555);
myusec_delay(40);
printf_debug("%s: id1 0x%02x, id2 0x%02x", __func__, id1, id2);
diff --git a/w39v080fa.c b/w39v080fa.c
index 66534ce..6278fbc 100644
--- a/w39v080fa.c
+++ b/w39v080fa.c
@@ -27,19 +27,19 @@
uint8_t vid, did;
/* Product Identification Entry */
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
- *(volatile uint8_t *)(bios + 0x5555) = 0x90;
+ writeb(0xAA, bios + 0x5555);
+ writeb(0x55, bios + 0x2AAA);
+ writeb(0x90, bios + 0x5555);
myusec_delay(10);
/* Read product ID */
- vid = *(volatile uint8_t *)bios;
- did = *(volatile uint8_t *)(bios + 0x01);
+ vid = readb(bios);
+ did = readb(bios + 0x01);
/* Product Identifixation Exit */
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
- *(volatile uint8_t *)(bios + 0x5555) = 0xF0;
+ writeb(0xAA, bios + 0x5555);
+ writeb(0x55, bios + 0x2AAA);
+ writeb(0xF0, bios + 0x5555);
myusec_delay(10);
printf_debug("%s: vid 0x%x, did 0x%x\n", __FUNCTION__, vid, did);
@@ -58,16 +58,16 @@
uint8_t locking;
printf_debug("Trying to unlock block @0x%08x = 0x%02x\n", offset,
- *wrprotect);
+ readb(wrprotect));
- locking = *wrprotect;
+ locking = readb(wrprotect);
switch (locking & 0x7) {
case 0:
printf_debug("Full Access.\n");
return 0;
case 1:
printf_debug("Write Lock (Default State).\n");
- *wrprotect = 0;
+ writeb(0, wrprotect);
return 0;
case 2:
printf_debug("Locked Open (Full Access, Lock Down).\n");
@@ -77,11 +77,11 @@
return -1;
case 4:
printf_debug("Read Lock.\n");
- *wrprotect = 0;
+ writeb(0, wrprotect);
return 0;
case 5:
printf_debug("Read/Write Lock.\n");
- *wrprotect = 0;
+ writeb(0, wrprotect);
return 0;
case 6:
fprintf(stderr, "Error: Read Lock, Locked Down.\n");
@@ -106,18 +106,18 @@
*/
/* Product Identification Entry */
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
- *(volatile uint8_t *)(bios + 0x5555) = 0x90;
+ writeb(0xAA, bios + 0x5555);
+ writeb(0x55, bios + 0x2AAA);
+ writeb(0x90, bios + 0x5555);
myusec_delay(10);
/* Read Hardware Lock Bits */
- locking = *(volatile uint8_t *)(bios + 0xffff2);
+ locking = readb(bios + 0xffff2);
/* Product Identification Exit */
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
- *(volatile uint8_t *)(bios + 0x5555) = 0xF0;
+ writeb(0xAA, bios + 0x5555);
+ writeb(0x55, bios + 0x2AAA);
+ writeb(0xF0, bios + 0x5555);
myusec_delay(10);
printf_debug("Lockout bits:\n");
@@ -151,13 +151,13 @@
printf("0x%08x\b\b\b\b\b\b\b\b\b\b", sector);
/* Sector Erase */
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
- *(volatile uint8_t *)(bios + 0x5555) = 0x80;
+ writeb(0xAA, bios + 0x5555);
+ writeb(0x55, bios + 0x2AAA);
+ writeb(0x80, bios + 0x5555);
- *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
- *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
- *(volatile uint8_t *)(bios + sector) = 0x30;
+ writeb(0xAA, bios + 0x5555);
+ writeb(0x55, bios + 0x2AAA);
+ writeb(0x30, bios + sector);
/* wait for Toggle bit ready */
toggle_ready_jedec(bios);