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Unify chip write functions

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The currently used write functions (wrappers) all use helpers which
perform the actual write (inner functions).

The signature of the write wrappers is: int write_chip(struct flashchip
*flash, uint8_t * buf);

The signature of the inner write functions varied a lot. This patch
changes them to: int write_part(struct flashchip *flash, uint8_t *src,
int start, int len);

Did you know that flashrom has only 8 inner write functions for all
flash chips? write_page_write_jedec_common write_sector_jedec_common
write_sector_28sf040 spi_chip_write_256_new spi_chip_write_1_new
spi_aai_write_new write_page_82802ab write_page_m29f400bt

Export all inner write functions.

Change the function signature of wait_82802ab to eliminate single-use
variables.

Remove an error message in write_page_m29f400bt which was printed for
every byte written regardless of success.

Add sharplhf00l04.c to the list of flash chip drivers in the Makefile.
While the functions in there are unused, I suspect we will need them
later, and by hooking the file up we ensure that compilation won't
break.

Corresponding to flashrom svn r1208.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
This commit is contained in:
Carl-Daniel Hailfinger 2010-10-10 14:02:27 +00:00
parent b28349f8bc
commit b30a5ed4af
9 changed files with 62 additions and 61 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
82802ab.c
View File

@ -88,9 +88,10 @@ int probe_82802ab(struct flashchip *flash)
return 1;
}
uint8_t wait_82802ab(chipaddr bios)
uint8_t wait_82802ab(struct flashchip *flash)
{
uint8_t status;
chipaddr bios = flash->virtual_memory;
chip_writeb(0x70, bios);
if ((chip_readb(bios) & 0x80) == 0) { // it's busy
@ -132,7 +133,7 @@ int erase_block_82802ab(struct flashchip *flash, unsigned int page, unsigned int
programmer_delay(10);
// now let's see what the register is
status = wait_82802ab(bios);
status = wait_82802ab(flash);
print_status_82802ab(status);
if (check_erased_range(flash, page, pagesize)) {
@ -143,26 +144,28 @@ int erase_block_82802ab(struct flashchip *flash, unsigned int page, unsigned int
return 0;
}
void write_page_82802ab(chipaddr bios, uint8_t *src,
chipaddr dst, int page_size)
int write_page_82802ab(struct flashchip *flash, uint8_t *src, int start, int len)
{
int i;
chipaddr dst = flash->virtual_memory + start;
for (i = 0; i < page_size; i++) {
for (i = 0; i < len; i++) {
/* transfer data from source to destination */
chip_writeb(0x40, dst);
chip_writeb(*src++, dst++);
wait_82802ab(bios);
wait_82802ab(flash);
}
/* FIXME: Ignore errors for now. */
return 0;
}
int write_82802ab(struct flashchip *flash, uint8_t *buf)
{
int i;
chipaddr bios = flash->virtual_memory;
for (i = 0; i < flash->total_size; i++) {
write_page_82802ab(bios, buf + i * 1024, bios + i * 1024, 1024);
write_page_82802ab(flash, buf + i * 1024, i * 1024, 1024);
}
return 0;

2
Makefile
View File

@ -84,7 +84,7 @@ endif
CHIP_OBJS = jedec.o stm50flw0x0x.o w39v040c.o w39v080fa.o w29ee011.o \
sst28sf040.o m29f400bt.o 82802ab.o pm49fl00x.o \
sst49lfxxxc.o sst_fwhub.o flashchips.o spi.o spi25.o
sst49lfxxxc.o sst_fwhub.o flashchips.o spi.o spi25.o sharplhf00l04.o
LIB_OBJS = layout.o

11
chipdrivers.h
View File

@ -65,12 +65,12 @@ int spi_aai_write_new(struct flashchip *flash, uint8_t *buf, int start, int len)
int spi_aai_write(struct flashchip *flash, uint8_t *buf);
/* 82802ab.c */
uint8_t wait_82802ab(chipaddr bios);
uint8_t wait_82802ab(struct flashchip *flash);
int probe_82802ab(struct flashchip *flash);
int erase_block_82802ab(struct flashchip *flash, unsigned int page, unsigned int pagesize);
int write_82802ab(struct flashchip *flash, uint8_t *buf);
void print_status_82802ab(uint8_t status);
void write_page_82802ab(chipaddr bios, uint8_t *src, chipaddr dst, int page_size);
int write_page_82802ab(struct flashchip *flash, uint8_t *src, int start, int len);
int unlock_82802ab(struct flashchip *flash);
int unlock_28f004s5(struct flashchip *flash);
@ -86,7 +86,8 @@ int write_jedec_1(struct flashchip *flash, uint8_t *buf);
int erase_sector_jedec(struct flashchip *flash, unsigned int page, unsigned int pagesize);
int erase_block_jedec(struct flashchip *flash, unsigned int page, unsigned int blocksize);
int erase_chip_block_jedec(struct flashchip *flash, unsigned int page, unsigned int blocksize);
int write_sector_jedec_common(struct flashchip *flash, uint8_t *src, chipaddr dst, unsigned int page_size, unsigned int mask);
int write_sector_jedec_common(struct flashchip *flash, uint8_t *src, int start, int len, unsigned int mask);
int write_page_write_jedec_common(struct flashchip *flash, uint8_t *src, int start, int page_size, unsigned int mask);
/* m29f400bt.c */
int probe_m29f400bt(struct flashchip *flash);
@ -94,8 +95,7 @@ int block_erase_m29f400bt(struct flashchip *flash, unsigned int start, unsigned
int block_erase_chip_m29f400bt(struct flashchip *flash, unsigned int start, unsigned int len);
int write_m29f400bt(struct flashchip *flash, uint8_t *buf);
void protect_m29f400bt(chipaddr bios);
void write_page_m29f400bt(chipaddr bios, uint8_t *src,
chipaddr dst, int page_size);
int write_page_m29f400bt(struct flashchip *flash, uint8_t *src, int start, int len);
/* pm49fl00x.c */
int unlock_49fl00x(struct flashchip *flash);
@ -105,6 +105,7 @@ int lock_49fl00x(struct flashchip *flash);
int erase_chip_28sf040(struct flashchip *flash, unsigned int addr, unsigned int blocklen);
int erase_sector_28sf040(struct flashchip *flash, unsigned int address, unsigned int sector_size);
int write_28sf040(struct flashchip *flash, uint8_t *buf);
int write_sector_28sf040(struct flashchip *flash, uint8_t *src, int start, int len);
/* sst49lfxxxc.c */
int erase_sector_49lfxxxc(struct flashchip *flash, unsigned int address, unsigned int sector_size);

16
jedec.c
View File

@ -317,14 +317,14 @@ retry:
return failed;
}
int write_sector_jedec_common(struct flashchip *flash, uint8_t *src,
chipaddr dst, unsigned int page_size, unsigned int mask)
int write_sector_jedec_common(struct flashchip *flash, uint8_t *src, int start, int len, unsigned int mask)
{
int i, failed = 0;
chipaddr dst = flash->virtual_memory + start;
chipaddr olddst;
olddst = dst;
for (i = 0; i < page_size; i++) {
for (i = 0; i < len; i++) {
if (write_byte_program_jedec_common(flash, src, dst, mask))
failed = 1;
dst++, src++;
@ -335,8 +335,7 @@ int write_sector_jedec_common(struct flashchip *flash, uint8_t *src,
return failed;
}
static int write_page_write_jedec_common(struct flashchip *flash, uint8_t *src,
int start, int page_size, unsigned int mask)
int write_page_write_jedec_common(struct flashchip *flash, uint8_t *src, int start, int page_size, unsigned int mask)
{
int i, tried = 0, failed;
uint8_t *s = src;
@ -403,8 +402,7 @@ int write_jedec(struct flashchip *flash, uint8_t *buf)
mask = getaddrmask(flash);
for (i = 0; i < total_size / page_size; i++) {
if (write_page_write_jedec_common(flash, buf + i * page_size,
i * page_size, page_size, mask))
if (write_page_write_jedec_common(flash, buf + i * page_size, i * page_size, page_size, mask))
failed = 1;
}
@ -414,14 +412,12 @@ int write_jedec(struct flashchip *flash, uint8_t *buf)
int write_jedec_1(struct flashchip *flash, uint8_t * buf)
{
int i;
chipaddr bios = flash->virtual_memory;
chipaddr dst = bios;
int mask;
mask = getaddrmask(flash);
for (i = 0; i < flash->total_size; i++) {
write_sector_jedec_common(flash, buf + i * 1024, dst + i * 1024, 1024, mask);
write_sector_jedec_common(flash, buf + i * 1024, i * 1024, 1024, mask);
}
return 0;

28
m29f400bt.c
View File

@ -27,12 +27,13 @@
0x555 instead of 0x2AA. Do *not* blindly replace with standard JEDEC
functions. */
void write_page_m29f400bt(chipaddr bios, uint8_t *src,
chipaddr dst, int page_size)
int write_page_m29f400bt(struct flashchip *flash, uint8_t *src, int start, int len)
{
int i;
chipaddr bios = flash->virtual_memory;
chipaddr dst = flash->virtual_memory + start;
for (i = 0; i < page_size; i++) {
for (i = 0; i < len; i++) {
chip_writeb(0xAA, bios + 0xAAA);
chip_writeb(0x55, bios + 0x555);
chip_writeb(0xA0, bios + 0xAAA);
@ -40,11 +41,17 @@ void write_page_m29f400bt(chipaddr bios, uint8_t *src,
/* transfer data from source to destination */
chip_writeb(*src, dst);
toggle_ready_jedec(dst);
#if 0
/* We only want to print something in the error case. */
msg_cerr("Value in the flash at address 0x%lx = %#x, want %#x\n",
(dst - bios), chip_readb(dst), *src);
#endif
dst++;
src++;
}
/* FIXME: Ignore errors for now. */
return 0;
}
int probe_m29f400bt(struct flashchip *flash)
@ -138,20 +145,15 @@ int write_m29f400bt(struct flashchip *flash, uint8_t *buf)
int i;
int total_size = flash->total_size * 1024;
int page_size = flash->page_size;
chipaddr bios = flash->virtual_memory;
for (i = 0; i < (total_size / page_size) - 1; i++) {
write_page_m29f400bt(bios, buf + i * page_size,
bios + i * page_size, page_size);
write_page_m29f400bt(flash, buf + i * page_size, i * page_size, page_size);
}
write_page_m29f400bt(bios, buf + 0x70000, bios + 0x70000, 32 * 1024);
write_page_m29f400bt(bios, buf + 0x78000, bios + 0x78000, 8 * 1024);
write_page_m29f400bt(bios, buf + 0x7a000, bios + 0x7a000, 8 * 1024);
write_page_m29f400bt(bios, buf + 0x7c000, bios + 0x7c000, 16 * 1024);
write_page_m29f400bt(flash, buf + 0x70000, 0x70000, 32 * 1024);
write_page_m29f400bt(flash, buf + 0x78000, 0x78000, 8 * 1024);
write_page_m29f400bt(flash, buf + 0x7a000, 0x7a000, 8 * 1024);
write_page_m29f400bt(flash, buf + 0x7c000, 0x7c000, 16 * 1024);
return 0;
}

9
sharplhf00l04.c
View File

@ -23,6 +23,7 @@
/* FIXME: The datasheet is unclear whether we should use toggle_ready_jedec
* or wait_82802ab.
* FIXME: This file is unused.
*/
int erase_lhf00l04_block(struct flashchip *flash, unsigned int blockaddr, unsigned int blocklen)
@ -33,7 +34,7 @@ int erase_lhf00l04_block(struct flashchip *flash, unsigned int blockaddr, unsign
// clear status register
chip_writeb(0x50, bios);
status = wait_82802ab(flash->virtual_memory);
status = wait_82802ab(flash);
print_status_82802ab(status);
// clear write protect
msg_cspew("write protect is at 0x%lx\n", (wrprotect));
@ -46,7 +47,7 @@ int erase_lhf00l04_block(struct flashchip *flash, unsigned int blockaddr, unsign
chip_writeb(0xd0, bios);
programmer_delay(10);
// now let's see what the register is
status = wait_82802ab(flash->virtual_memory);
status = wait_82802ab(flash);
print_status_82802ab(status);
if (check_erased_range(flash, blockaddr, blocklen)) {
@ -61,11 +62,9 @@ int write_lhf00l04(struct flashchip *flash, uint8_t *buf)
int i;
int total_size = flash->total_size * 1024;
int page_size = flash->page_size;
chipaddr bios = flash->virtual_memory;
for (i = 0; i < total_size / page_size; i++) {
write_page_82802ab(bios, buf + i * page_size,
bios + i * page_size, page_size);
write_page_82802ab(flash, buf + i * page_size, i * page_size, page_size);
}
return 0;

30
sst28sf040.c
View File

@ -30,8 +30,10 @@
#define RESET 0xFF
#define READ_ID 0x90
static void protect_28sf040(chipaddr bios)
static void protect_28sf040(struct flashchip *flash)
{
chipaddr bios = flash->virtual_memory;
chip_readb(bios + 0x1823);
chip_readb(bios + 0x1820);
chip_readb(bios + 0x1822);
@ -41,8 +43,10 @@ static void protect_28sf040(chipaddr bios)
chip_readb(bios + 0x040A);
}
static void unprotect_28sf040(chipaddr bios)
static void unprotect_28sf040(struct flashchip *flash)
{
chipaddr bios = flash->virtual_memory;
chip_readb(bios + 0x1823);
chip_readb(bios + 0x1820);
chip_readb(bios + 0x1822);
@ -59,7 +63,7 @@ int erase_sector_28sf040(struct flashchip *flash, unsigned int address, unsigned
chip_writeb(AUTO_PG_ERASE1, bios);
chip_writeb(AUTO_PG_ERASE2, bios + address);
/* wait for Toggle bit ready */
/* wait for Toggle bit ready */
toggle_ready_jedec(bios);
if (check_erased_range(flash, address, sector_size)) {
@ -69,12 +73,13 @@ int erase_sector_28sf040(struct flashchip *flash, unsigned int address, unsigned
return 0;
}
static int write_sector_28sf040(chipaddr bios, uint8_t *src, chipaddr dst,
unsigned int page_size)
int write_sector_28sf040(struct flashchip *flash, uint8_t *src, int start, int len)
{
int i;
chipaddr bios = flash->virtual_memory;
chipaddr dst = flash->virtual_memory + start;
for (i = 0; i < page_size; i++) {
for (i = 0; i < len; i++) {
/* transfer data from source to destination */
if (*src == 0xFF) {
dst++, src++;
@ -96,10 +101,10 @@ static int erase_28sf040(struct flashchip *flash)
{
chipaddr bios = flash->virtual_memory;
unprotect_28sf040(bios);
unprotect_28sf040(flash);
chip_writeb(CHIP_ERASE, bios);
chip_writeb(CHIP_ERASE, bios);
protect_28sf040(bios);
protect_28sf040(flash);
programmer_delay(10);
toggle_ready_jedec(bios);
@ -116,17 +121,14 @@ int write_28sf040(struct flashchip *flash, uint8_t *buf)
int i;
int total_size = flash->total_size * 1024;
int page_size = flash->page_size;
chipaddr bios = flash->virtual_memory;
unprotect_28sf040(bios);
unprotect_28sf040(flash);
for (i = 0; i < total_size / page_size; i++) {
/* write to the sector */
write_sector_28sf040(bios, buf + i * page_size,
bios + i * page_size, page_size);
write_sector_28sf040(flash, buf + i * page_size, i * page_size, page_size);
}
protect_28sf040(bios);
protect_28sf040(flash);
return 0;
}

6
sst49lfxxxc.c
View File

@ -67,7 +67,7 @@ int erase_sector_49lfxxxc(struct flashchip *flash, unsigned int address, unsigne
chip_writeb(0x30, bios);
chip_writeb(0xD0, bios + address);
status = wait_82802ab(bios);
status = wait_82802ab(flash);
if (check_erased_range(flash, address, sector_size)) {
msg_cerr("ERASE FAILED!\n");
@ -85,9 +85,7 @@ int write_49lfxxxc(struct flashchip *flash, uint8_t *buf)
write_lockbits_49lfxxxc(flash, 0);
for (i = 0; i < total_size / page_size; i++) {
/* write to the sector */
write_page_82802ab(bios, buf + i * page_size,
bios + i * page_size, page_size);
write_page_82802ab(flash, buf + i * page_size, i * page_size, page_size);
}
chip_writeb(0xFF, bios);

2
stm50flw0x0x.c
View File

@ -105,7 +105,7 @@ int erase_sector_stm50flw0x0x(struct flashchip *flash, unsigned int sector, unsi
chip_writeb(0xd0, bios);
programmer_delay(10);
wait_82802ab(flash->virtual_memory);
wait_82802ab(flash);
if (check_erased_range(flash, sector, sectorsize)) {
msg_cerr("ERASE FAILED!\n");