[U-Boot] U-boot -printk kernel crash dump using md on PDK

[alfred steele]

Dear Magnus,

Thanks for the reply!
> And we need to know which U-boot patches you're using to boot the PDK
> board.
I am using the internal git tree code supplied to me by freescale. The
tarball is called "uboot-imx-imx_v2009.01.tar.gz". I can boot uboot
out of NAND successfully using that as the code base.  I had  started
using this even before Magnus had posted the patches and i had to
write a patch for the MMC/SD driver on top of that . To add to that ,
i tried downloading the mainline using GIT but it seems the corporate
firewall/proxy we have  blocks  it. Due to the shortage of time, i
continued to use the Freescale supplied code. It would be great if you
can supply me the code in a tarball(mainline git) with the patches you
posted if you want me to try it out.

>In your original post you use the "go" command to boot the
> kernel,
I use the "bootm" command now. My sole intention of using go was to
check whether or not zImage( instead of uImage) boots up as a generic
application. I tried verify  the bootags in  the U-boot environment. I
chacked on the machine id which gets registered with the kernel. They
all seemed to be the expected values.

Coming back to I am not sure about ,was when i tried dumping the
address(0x80000100) which supposedly stores the bootargs, i get the
following :
=> md 0x80000100
80000100: c0000100 c0000100 c0000108 c0000108    ................
80000110: c0000110 c0000110 c0000118 c0000118    ................
80000120: 92492492 24924924 00000149 736e6f63    .$I.$I.$I...cons
80000130: 3d656c6f 6d797474 2c306378 32353131    ole=ttymxc0,1152
80000140: c0000140 c0000140 c0000148 c0000148    @... at ...H...H...

It looks like the console is not set correctly to 115200, assuming its
in ASCII. Any clues as to what could be gone wrong?

Another quick question is do i have to supply the "mem=XX"  argument
if my CONFIG_SETUP_MEMORY_TAGS is set in include/configs/mx31_pdk.h

BTW, following is an extract from the uboot linker script -u-boot.lds
which i had edited. Please let me know if you think something's wrong
with it.

OUTPUT_ARCH(arm)
ENTRY(reset)
SECTIONS
{
        . = 0x00000000;

        . = ALIGN(4);
        .text      :
        {
          /* WARNING - the following is hand-optimized to fit within    */
          /* the sector layout of our flash chips!      XXX FIXME XXX   */

          * (.text.head)        /* arm reset handler */
          * (.text.init)        /* lowlevel initial */
          * (.text.load)        /* nand copy and load */
          * (.text.setup)
          board/freescale/mx31_3stack/libmx31_3stack.a  (.text)
          lib_arm/libarm.a              (.text)
          net/libnet.a                  (.text)
          drivers/mtd/libmtd.a          (.text)

          . = DEFINED(env_offset) ? env_offset : .;
          common/env_embedded.o(.text)

          *(.text)
        }

        . = ALIGN(4);

-Alfred.