On Fri, 11 Apr 2008, Fabio Estevam wrote:
> I am using U-boot 1.3.2 with the MX31ADS patches
> posted by Guennadi Liakhovetski.
>
> I would like to load the zImage kernel from Freescale
> Linux BSP via TFTP and mount the rootfs via NFS.
You nead a uImage. Just use the same kernel sources and do make uImage
instead of zImage.
> Does anyone have an example for doing this? I am not
> sure what address should I use to load the kernel into
> RAM.
Load it to 0x80800000. You can also try the patch below, which will give
you a better default environment, it shall be submitted to the list soon.
Thanks
Guennadi
---
Guennadi Liakhovetski
[PATCH] mx31ads: Fix default environment
Fix wrong load address in RAM, undefined environment variables,
make the default environment more usable.
Signed-off-by: Guennadi Liakhovetski <[EMAIL PROTECTED]>
---
include/configs/mx31ads.h | 25 ++++++++++++++++++-------
1 files changed, 18 insertions(+), 7 deletions(-)
diff --git a/include/configs/mx31ads.h b/include/configs/mx31ads.h
index 78e2545..3ad3883 100644
--- a/include/configs/mx31ads.h
+++ b/include/configs/mx31ads.h
@@ -80,13 +80,24 @@
#define CONFIG_IPADDR 192.168.23.168
#define CONFIG_SERVERIP 192.168.23.2
-#define CONFIG_EXTRA_ENV_SETTINGS
\
- "bootargs_base=setenv bootargs console=ttymxc0,115200\0"
\
- "bootargs_nfs=setenv bootargs $(bootargs) root=/dev/nfs ip=dhcp
nfsroot=$(serverip):$(nfsrootfs),v3,tcp\0" \
- "bootcmd=run bootcmd_net\0"
\
- "bootcmd_net=run bootargs_base bootargs_mtd bootargs_nfs; tftpboot
0x80000000 uImage-mx31; bootm\0" \
- "prg_uboot=tftpboot 0x80000000 u-boot-mx31ads.bin; protect off
0xa0000000 0xa001ffff; erase 0xa0000000 0xa001ffff; cp.b 0x80000000 0xa0000000
$(filesize)\0"
-
+#define CONFIG_EXTRA_ENV_SETTINGS
\
+ "netdev=eth0\0" \
+ "load_addr=0x80800000\0" \
+ "uboot_addr=0xa0000000\0" \
+ "uboot=mx31ads/u-boot.bin\0" \
+ "kernel=mx31ads/uImage\0" \
+ "nfsroot=/opt/eldk/arm\0" \
+ "bootargs_base=setenv bootargs console=ttymxc0,115200\0" \
+ "bootargs_nfs=setenv bootargs ${bootargs} root=/dev/nfs " \
+ "ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp\0" \
+ "bootcmd=run bootcmd_net\0" \
+ "bootcmd_net=run bootargs_base bootargs_nfs; " \
+ "tftpboot ${load_addr} ${kernel}; bootm\0" \
+ "prg_uboot=tftpboot ${load_addr} ${uboot}; " \
+ "protect off ${uboot_addr} 0xa003ffff; " \
+ "erase ${uboot_addr} 0xa003ffff; " \
+ "cp.b ${load_addr} ${uboot_addr} ${filesize}; " \
+ "setenv filesize; saveenv\0"
#define CONFIG_DRIVER_CS8900 1
#define CS8900_BASE 0xb4020300
--
1.5.4
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