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 <[EMAIL PROTECTED]>
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 <[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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