Hello:
I have got two version of u-boot source code:
one downloaded from
http://code.google.com/p/srv1-linux/downloads/listwhich provided by
Surveyor;
another is u-boot-2010.06-2010R1-RC2.tar.bz2 which released recently.
The u-boot.ldr is built for my SRV-1 robot.
With the first one, uClinux can not be auto started after power on the
robot, error log as below:
*SF: Detected M25P32 with page size 256, total 4 MiB
4096 KiB M25P32 at 0:1 is now current device
Wrong Image Format for bootm command
ERROR: can't get kernel image!
*
But the second one can works well (V-2010R1-RC2).
I have diff-ed the refer files about two version, only SPI flash driver
files have changes litter.
The SPI flash of my SRV-1 robot is M25P32.
Does anybody can have an explaination about that ?
---------------------------------------------------------------------------
--- ../u-boot-surveyor/drivers/mtd/spi/stmicro.c.orig 2010-12-01
17:26:06.606510214 +0800
+++ drivers/mtd/spi/stmicro.c 2010-04-30 22:41:59.000000000 +0800
@@ -46,7 +46,6 @@
#define CMD_M25PXX_DP 0xb9 /* Deep Power-down */
#define CMD_M25PXX_RES 0xab /* Release from DP, and Read
Signature */
-#define STM_ID_M25P10 0x11
#define STM_ID_M25P16 0x15
#define STM_ID_M25P20 0x12
#define STM_ID_M25P32 0x16
@@ -79,13 +78,6 @@
static const struct stmicro_spi_flash_params stmicro_spi_flash_table[] = {
{
- .idcode1 = STM_ID_M25P10,
- .page_size = 256,
- .pages_per_sector = 128,
- .nr_sectors = 4,
- .name = "M25P10",
- },
- {
.idcode1 = STM_ID_M25P16,
.page_size = 256,
.pages_per_sector = 256,
@@ -324,19 +316,6 @@
struct stmicro_spi_flash *stm;
unsigned int i;
- if (idcode[0] == 0xff) {
- i = spi_flash_cmd(spi, CMD_M25PXX_RES,
- idcode, 4);
- if (i)
- return NULL;
- if ((idcode[3] & 0xf0) == 0x10) {
- idcode[0] = 0x20;
- idcode[1] = 0x20;
- idcode[2] = idcode[3] + 1;
- } else
- return NULL;
- }
-
for (i = 0; i < ARRAY_SIZE(stmicro_spi_flash_table); i++) {
params = &stmicro_spi_flash_table[i];
if (params->idcode1 == idcode[2]) {
--
wzc0066
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