Hi Guennadi,
I tried to load the kernel at 0x80800000, but this is what I get: Hit any key to stop autoboot: 0 => run bootargs_base bootargs_nfs => tftp 80800000 uImage TFTP from server 10.29.244.101; our IP address is 10.29.244.102 Filename 'uImage'. Load address: 0x80800000 Loading: ################################################################# ########################### done Bytes transferred = 1339152 (146f10 hex) => bootm ## Booting image at 80800000 ... Image Name: Linux-2.6.22 Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 1339088 Bytes = 1.3 MB Load Address: 80008000 Entry Point: 80008000 Verifying Checksum ... OK OK
Starting kernel ...
Uncompressing Linux............................................................. ................................... done, booting the kernel. (then it freezes)
I generated uImage manually by doing: ./mkimage -A arm -O linux -T kernel -C none -a 0x80008000 -e 0x80008000 -n 'Linux-2.6.22' -d zImage uImage
Used 0x80008000 to match the value of ZRELADDR in /arch/arm/mach-mx3/Makefile.boot from Freescale Linux BSP.
Any suggestions?
Thanks,
Fabio Estevam
--- Guennadi Liakhovetski g.liakhovetski@gmx.de wrote:
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 lg@denx.de
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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