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Commit 1c296ca8 authored by Michael Karcher's avatar Michael Karcher Committed by Carl-Daniel Hailfinger
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Use common jedec functionality where appropriate 

The deleted function in en29f002a.c is reintroduced as
write_by_byte_jedec in jedec.c as it contains no chip-specific
instructions. It is not yet used in other chip drivers, as key addresses
(0x2AAA/0x5555) are often specified with less bits. After crosschecking
datasheets, most of the fixmes can probably be resolved as indicated in
them, causing significant code reduction.

The common JEDEC code for bytewise programming does not program 0xFF
at all. The chips that had a dedicated bytewise flash function which
has been changed to write_jedec_1 thus changed flashing behaviour
and the "write" test flag has been removed. This applies to: AMD
Am29F002BB/Am29F002NBB AMD Am29F002BT/Am29F002NBT (TEST_OK_PREW before)
AMIC A29002B AMIC A29002T (TEST_OK_PREW before) EON EN29F002(A)(N)B EON
EN29F002(A)(N)T (TEST_OK_PREW before) Macronix MX29F001B (TEST_OK_PREW
before) Macronix MX29F001T (TEST_OK_PREW before) Macronix MX29F002B
Macronix MX29F002T (TEST_OK_PREW before) ...
parent 797a8346
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Showing with 64 additions and 89 deletions
am29f040b.c
View file @ 1c296ca8
......@@ -20,6 +20,8 @@
#include "flash.h"
/* FIMXE: check that the 2 second delay is really needed.
Use erase_sector_jedec if not? */
static int erase_sector_29f040b(struct flashchip *flash, unsigned long address)
{
int page_size = flash->page_size;
......@@ -44,6 +46,7 @@ static int erase_sector_29f040b(struct flashchip *flash, unsigned long address)
return 0;
}
/* FIXME: use write_sector_jedec? */
static int write_sector_29f040b(chipaddr bios, uint8_t *src, chipaddr dst,
unsigned int page_size)
{
......@@ -91,6 +94,7 @@ int probe_29f040b(struct flashchip *flash)
return 0;
}
/* FIXME: use erase_chip_jedec? */
int erase_29f040b(struct flashchip *flash)
{
int total_size = flash->total_size * 1024;
......
en29f002a.c
View file @ 1c296ca8
......@@ -87,39 +87,3 @@ int probe_en29f002a(struct flashchip *flash)
return 0;
}
/* The EN29F002 chip needs repeated single byte writing, no block writing. */
int write_en29f002a(struct flashchip *flash, uint8_t *buf)
{
int i;
int total_size = flash->total_size * 1024;
chipaddr bios = flash->virtual_memory;
chipaddr dst = bios;
//chip_writeb(0xF0, bios);
programmer_delay(10);
if (erase_chip_jedec(flash)) {
fprintf(stderr, "ERASE FAILED!\n");
return -1;
}
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);
chip_writeb(0xAA, bios + 0x5555);
chip_writeb(0x55, bios + 0x2AAA);
chip_writeb(0xA0, bios + 0x5555);
chip_writeb(*buf++, dst++);
/* 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("\n");
return 0;
}
flash.h
View file @ 1c296ca8
......@@ -653,6 +653,7 @@ int write_byte_program_jedec(chipaddr bios, uint8_t *src,
int probe_jedec(struct flashchip *flash);
int erase_chip_jedec(struct flashchip *flash);
int write_jedec(struct flashchip *flash, uint8_t *buf);
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 write_sector_jedec(chipaddr bios, uint8_t *src,
......
flashchips.c
View file @ 1c296ca8
......@@ -81,7 +81,7 @@ struct flashchip flashchips[] = {
.probe = probe_jedec,
.probe_timing = TIMING_ZERO,
.erase = erase_chip_jedec,
.write = write_en29f002a,
.write = write_jedec_1,
.read = read_memmapped,
},
......@@ -93,11 +93,11 @@ struct flashchip flashchips[] = {
.model_id = AM_29F002BT,
.total_size = 256,
.page_size = 256,
.tested = TEST_OK_PREW,
.tested = TEST_OK_PRE,
.probe = probe_jedec,
.probe_timing = TIMING_ZERO,
.erase = erase_chip_jedec,
.write = write_en29f002a,
.write = write_jedec_1,
.read = read_memmapped,
},
......@@ -739,7 +739,7 @@ struct flashchip flashchips[] = {
.probe = probe_29f002,
.probe_timing = TIMING_IGNORED, /* routine don't use probe_timing (mx29f002.c) */
.erase = erase_29f002,
.write = write_29f002,
.write = write_jedec_1,
.read = read_memmapped,
},
......@@ -751,11 +751,11 @@ struct flashchip flashchips[] = {
.model_id = AMIC_A29002T,
.total_size = 256,
.page_size = 64 * 1024,
.tested = TEST_OK_PREW,
.tested = TEST_OK_PRE,
.probe = probe_29f002,
.probe_timing = TIMING_IGNORED, /* routine don't use probe_timing (mx29f002.c) */
.erase = erase_29f002,
.write = write_29f002,
.write = write_jedec_1,
.read = read_memmapped,
},
......@@ -1075,7 +1075,7 @@ struct flashchip flashchips[] = {
.probe = probe_jedec,
.probe_timing = TIMING_ZERO, /* Datasheet has no timing info specified */
.erase = erase_chip_jedec,
.write = write_en29f002a,
.write = write_jedec_1,
.read = read_memmapped,
},
......@@ -1087,11 +1087,11 @@ struct flashchip flashchips[] = {
.model_id = EN_29F002T,
.total_size = 256,
.page_size = 256,
.tested = TEST_OK_PREW,
.tested = TEST_OK_PRE,
.probe = probe_jedec,
.probe_timing = TIMING_ZERO, /* Datasheet has no timing info specified */
.erase = erase_chip_jedec,
.write = write_en29f002a,
.write = write_jedec_1,
.read = read_memmapped,
},
......@@ -1518,11 +1518,11 @@ struct flashchip flashchips[] = {
.model_id = MX_29F001B,
.total_size = 128,
.page_size = 32 * 1024,
.tested = TEST_OK_PREW,
.tested = TEST_OK_PRE,
.probe = probe_29f002,
.probe_timing = TIMING_IGNORED, /* routine don't use probe_timing (mx29f002.c) */
.erase = erase_29f002,
.write = write_29f002,
.write = write_jedec_1,
.read = read_memmapped,
},
......@@ -1534,11 +1534,11 @@ struct flashchip flashchips[] = {
.model_id = MX_29F001T,
.total_size = 128,
.page_size = 32 * 1024,
.tested = TEST_OK_PREW,
.tested = TEST_OK_PRE,
.probe = probe_29f002,
.probe_timing = TIMING_IGNORED, /* routine don't use probe_timing (mx29f002.c) */
.erase = erase_29f002,
.write = write_29f002,
.write = write_jedec_1,
.read = read_memmapped,
},
......@@ -1554,7 +1554,7 @@ struct flashchip flashchips[] = {
.probe = probe_29f002,
.probe_timing = TIMING_IGNORED, /* routine don't use probe_timing (mx29f002.c) */
.erase = erase_29f002,
.write = write_29f002,
.write = write_jedec_1,
.read = read_memmapped,
},
......@@ -1566,11 +1566,11 @@ struct flashchip flashchips[] = {
.model_id = MX_29F002T,
.total_size = 256,
.page_size = 64 * 1024,
.tested = TEST_OK_PREW,
.tested = TEST_OK_PRE,
.probe = probe_29f002,
.probe_timing = TIMING_IGNORED, /* routine don't use probe_timing (mx29f002.c) */
.erase = erase_29f002,
.write = write_29f002,
.write = write_jedec_1,
.read = read_memmapped,
},
......@@ -1586,7 +1586,7 @@ struct flashchip flashchips[] = {
.probe = probe_29f002,
.probe_timing = TIMING_IGNORED, /* routine don't use probe_timing (mx29f002.c) */
.erase = erase_29f002,
.write = write_29f002,
.write = write_jedec_1,
.read = read_memmapped,
},
......
jedec.c
View file @ 1c296ca8
......@@ -353,3 +353,30 @@ int write_jedec(struct flashchip *flash, uint8_t *buf)
return failed;
}
int write_jedec_1(struct flashchip *flash, uint8_t * buf)
{
int i;
chipaddr bios = flash->virtual_memory;
chipaddr dst = bios;
programmer_delay(10);
if (erase_flash(flash)) {
fprintf(stderr, "ERASE FAILED!\n");
return -1;
}
printf("Programming page: ");
for (i = 0; i < flash->total_size; i++) {
if ((i & 0x3) == 0)
printf("address: 0x%08lx", (unsigned long)i * 1024);
write_sector_jedec(bios, buf + i * 1024, dst + i * 1024, 1024);
if ((i & 0x3) == 0)
printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
}
printf("\n");
return 0;
}
m29f002.c
View file @ 1c296ca8
......@@ -45,6 +45,7 @@ static int rewrite_block(struct flashchip *flash, uint8_t *src,
chipaddr dst = bios + start;
/* erase */
/* FIXME: use erase_sector_jedec? */
chip_writeb(0xaa, bios + 0x555);
chip_writeb(0x55, bios + 0xaaa);
chip_writeb(0x80, bios + 0x555);
......@@ -59,6 +60,7 @@ static int rewrite_block(struct flashchip *flash, uint8_t *src,
}
/* program */
/* FIXME: use write_sector_jedec? */
while (size--) {
chip_writeb(0xaa, bios + 0x555);
chip_writeb(0x55, bios + 0xaaa);
......
m29f400bt.c
View file @ 1c296ca8
......@@ -20,6 +20,12 @@
#include "flash.h"
/* WARNING!
This chip uses the standard JEDEC Addresses in 16-bit mode as word
addresses. In byte mode, 0xAAA has to be used instead of 0x555 and
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)
{
......
mx29f002.c
View file @ 1c296ca8
......@@ -43,6 +43,9 @@ int probe_29f002(struct flashchip *flash)
return 0;
}
/* FIXME: Use erase_chip_jedec?
* erase_29f002 uses shorter addresses, sends F0 (exit ID mode) and
* and has a bigger delay before polling the toggle bit */
int erase_29f002(struct flashchip *flash)
{
chipaddr bios = flash->virtual_memory;
......@@ -64,37 +67,3 @@ int erase_29f002(struct flashchip *flash)
}
return 0;
}
int write_29f002(struct flashchip *flash, uint8_t *buf)
{
int i;
int total_size = flash->total_size * 1024;
chipaddr bios = flash->virtual_memory;
chipaddr dst = bios;
chip_writeb(0xF0, bios);
programmer_delay(10);
if (erase_29f002(flash)) {
fprintf(stderr, "ERASE FAILED!\n");
return -1;
}
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);
chip_writeb(0xAA, bios + 0x5555);
chip_writeb(0x55, bios + 0x2AAA);
chip_writeb(0xA0, bios + 0x5555);
chip_writeb(*buf++, dst++);
/* 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("\n");
return 0;
}
pm29f002.c
View file @ 1c296ca8
......@@ -20,18 +20,20 @@
#include "flash.h"
/* if write_sector_jedec is used,
this is write_jedec_1 */
int write_pm29f002(struct flashchip *flash, uint8_t *buf)
{
int i, total_size = flash->total_size * 1024;
chipaddr bios = flash->virtual_memory;
chipaddr dst = bios;
/* Pm29F002T/B use the same erase method... */
if (erase_29f040b(flash)) {
if (erase_flash(flash)) {
fprintf(stderr, "ERASE FAILED!\n");
return -1;
}
/* FIXME: use write_sector_jedec? */
printf("Programming page: ");
for (i = 0; i < total_size; i++) {
if ((i & 0xfff) == 0)
......
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