question about environment variable in U-BOOT
U-BOOT:
I want to modify the default environment variable in U-BOOT. The following info are about the hardware:
ARM: at91rm9200
platform: at91rm9200dk
U-BOOT: CFG_ENV_IS_IN_DATAFLASH
I modifed /include/configs/at91rm9200dk.h and add the following lines after "#define CONFIG_BAUDRATE 115200":
#define CONFIG_ETHADDR 12.24.96.78.91.11
#define CONFIG_IPADDR 172.19.71.10
#define CONFIG_SERVERIP 172.19.71.40
#define CONFIG_BOOTCMD = tftp 20008000 zImage; tftp 21000000 Ramdisk.gz; go 20008000
the first three commands work well, but the last command is not in the environment. I use printenv command to show the current
environment:
U-Boot> printenv
bootdelay=3
baudrate=115200
ethaddr=12.24.96.78.91.11
ipaddr=172.19.71.10
serverip=172.19.71.40
stdin=serial
stdout=serial
stderr=serial
There is not bootcmd command. How can I implement this function? ( just add bootcmd before compile u-boot)
best regards
2008-04-11
sonicss
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Quoted 13 lines · sonicss
U-BOOT:
I want to modify the default environment variable in U-BOOT. The following info are about the hardware:ARM: at91rm9200 platform: at91rm9200dkU-BOOT:
CFG_ENV_IS_IN_DATAFLASHI modifed /include/configs/at91rm9200dk.h and add the following lines after "#define
CONFIG_BAUDRATE115200":
Quoted 7 lines
#define
CONFIG_ETHADDR12.24.96.78.91.11
#defineCONFIG_IPADDR172.19.71.10
#defineCONFIG_SERVERIP172.19.71.40
*#defineCONFIG_BOOTCMD= tftp 20008000 zImage; tftp 21000000 Ramdisk.gz; go 20008000*the first three commands work well, but the last command is not in the environment. I use printenv command to show the current
1) Your #define for CONFIG_BOOTCMD is not a valid C preprocessor define
2) You probably wanted to #define CONFIG_BOOTCOMMAND, not CONFIG_BOOTCMD
Something closer (but not necessarily correct) would be:
#define CONFIG_BOOTCOMMAND "tftp 20008000 zImage; tftp 21000000 Ramdisk.gz; go 20008000"
[snip]
Quoted 8 lines
There is not bootcmd command. How can I implement this function? ( just add bootcmd before compile u-boot)
best regards
2008-04-11
------------------------------------------------------------------------
sonicss
Good luck,
gvb