[U-Boot-Users] u-boot 1.1.4 mx1ads kernel 2.4.18-rmk4-mx1bsp

[Benoît Degand]

Hello,

I'm trying to start kernel 2.4.18 on M9328MX1ADS ver1.1 board with u-boot.
For the moment, my Kernel image works on my evaluation board using 
specific bootloader provided by freescale.

I compile u-boot 1.1.4 with gnuarm-3.4.3 tools.
make mrproper
make mx1ads_config
make all

I download u-boot.bin file with MX1Flash utility v2.0.1
On board power on, u-boot starts well.

There, some system information :

u-boot start sequence :

    U-Boot 1.1.4 (Jul 27 2006 - 14:23:50)

    U-Boot code: 08400000 -> 08418494  BSS: -> 0841C8EC
    RAM Configuration:
    Bank #0: 08000000 64 MB
    Flash: 16 MB
    In:    serial
    Out:   serial
    Err:   serial
    MX1ADS board with UNKNOWN MC9328 cpu, Silicon ID 0x0001901d
    Hit any key to stop autoboot:  0
    MX1ADS$

Board info structure :

    MX1ADS$ bdinfo
    arch_number = 0x000000A0
    env_t       = 0x00000000
    boot_params = 0x08000100
    DRAM bank   = 0x00000000
    -> start    = 0x08000000
    -> size     = 0x04000000
    ethaddr     = 00:00:00:00:00:00
    ip_addr     = 0.0.0.0
    baudrate    = 115200 bps
    MX1ADS$

Flash memory information :

    MX1ADS$ flinfo

    Bank # 1: Micron: 2x FLASH_MT28S4M16LC (16MB Total)
      Size: 16 MB in 16 Sectors
      Sector Start Addresses:
        0C000000 (RO) 0C100000      0C200000      0C300000      0C400000
        0C500000      0C600000      0C700000      0C800000      0C900000
        0CA00000      0CB00000      0CC00000      0CD00000      0CE00000
        0CF00000 (RO)
    MX1ADS$


I create kernel uImage like this :
 > arm-elf-copy -O binary -R .note -R .comment -S vmlinux linux.bin
 > mkimage -A arm -O linux -T kernel -C none -a 0x08800000 -e 0x08800000 
-n "Linux Kernel Image" -d linux.bin uImage
 > arm-elf-objcopy -I binary -O srec --change-address 0x0C100000 uImage 
uImage.srec

Next, I erase flash sectors and download my uImage.srec file with u-boot :

    MX1ADS$ erase 0C100000 0CAFFFFF
    Erasing sector  1 ... ok.
    Erasing sector  2 ... ok.
    Erasing sector  3 ... ok.
    Erasing sector  4 ... ok.
    Erasing sector  5 ... ok.
    Erasing sector  6 ... ok.
    Erasing sector  7 ... ok.
    Erasing sector  8 ... ok.
    Erasing sector  9 ... ok.
    Erasing sector 10 ... ok.
    Erased 10 sectors
    MX1ADS$ loads (uImage.srec)
    ## Ready for S-Record download ...
    
................................................................................
    
................................................................................
    ## First Load Addr = 0x0C100000
    ## Last  Load Addr = 0x0C2D7BE6
    ## Total Size      = 0x001D7BE7 = 1932263 Bytes
    ## Start Addr      = 0x0C100000
    MX1ADS$

I verify kernel image at 0x0C100000 address :

    MX1ADS$ imi 0C100000

    ## Checking Image at 0c100000 ...
       Image Name:   Linux Kernel Image
       Image Type:   ARM Linux Kernel Image (uncompressed)
       Data Size:    1932199 Bytes =  1.8 MB
       Load Address: 08800000
       Entry Point:  08800000
       Verifying Checksum ... OK
    MX1ADS$

Then I boot on the kernel image and problem starts...

    MX1ADS$ bootm 0C100000
    ## Booting image at 0c100000 ...
       Image Name:   Linux Kernel Image
       Image Type:   ARM Linux Kernel Image (uncompressed)
       Data Size:    1932199 Bytes =  1.8 MB
       Load Address: 08800000
       Entry Point:  08800000
       Verifying Checksum ... OK
    OK

    Starting kernel ...

At this point, anything happens. The system is blocked.
I use the mx1ads u-boot standard configuration.
I have try a compressed kernel with no improvement, kernel is 
uncompressed in RAM but nothing happens after.
I read data at 0x0C100000 address with 'md' u-boot command and data 
matches with the downloaded uImage file.

For testing, I copy manually kernel from 0x0C100000 to 0x08800000 and 
start the kernel with the u-boot 'go' command.
Kernel first instructions are executed.

Have any idea concerning my kernel boot problem ?

I suppose it's a basic problem, thank you for your reply,
Benoît Degand.