Booting mx25 based device from SD and NOR

[Roberto Nibali]

Hi

I have been trying to boot a customized mx25 based device using barebox and
I seem to be missing a few basic pointers, I believe, since it does not
work. I have attached my config and put my current patch-set online:
http://pastebin.com/KUVAwWRk. It's based on git commit 'dadcf5bd8f715'.

I don't know if the way of adding the boatloader to the SD card for later
installing it onto NOR flash is the correct one. I currently issue a:

sudo dd if=barebox.bin of=/dev/sdc bs=512 skip=2 seek=2 && sync

sdc being the SD card. I wonder if the environment has to be put somewhere
into a partition or if it can be glued into the barebox image. Because
loading the barebox.bin as a secondary stage bootloader from within uboot
version 2009.08 works somehow:

Board: SID1 NOAH
registered netconsole as cs1
imx-esdhc at mci0: registered as mci0
imx-esdhc at imx-esdhc0: timeout 1
Cannot reset the SD/MMC card
ehci at ehci0: USB EHCI 1.00
cfi_flash at cfi_flash0: found cfi flash at a0000000, size 67108864
Malloc space: 0x83b00000 -> 0x83efffff (size  4 MB)
Stack space : 0x83af8000 -> 0x83b00000 (size 32 kB)
envfs: wrong magic on /dev/env0
no valid environment found on /dev/env0. Using default environment
running /env/bin/init...

Hit any key to stop autoboot:  3

type update_kernel nor [<imagename>] to update kernel into flash
type update_root nor [<imagename>] to update rootfs into flash

sid1-noah:/
sid1-noah:/ devinfo
devices:
`---- net
`---- imx_serial0
     `---- cs0
`---- mem0
     `---- 0x00000000-0x03ffffff: /dev/ram0
`---- imx_iim0
     `---- 0x00000000-0x0000001f: /dev/imx_iim_bank0
     `---- 0x00000000-0x0000001f: /dev/imx_iim_bank1
     `---- 0x00000000-0x0000001f: /dev/imx_iim_bank2
     `---- 0x00000000-0x0000001f: /dev/imx_iim_bank3
     `---- 0x00000000-0x0000001f: /dev/imx_iim_bank4
     `---- 0x00000000-0x0000001f: /dev/imx_iim_bank5
     `---- 0x00000000-0x0000001f: /dev/imx_iim_bank6
     `---- 0x00000000-0x0000001f: /dev/imx_iim_bank7
`---- ramfs0
`---- devfs0
`---- mem1
     `---- 0x00000000-0x000017e7: /dev/defaultenv
`---- mem2
     `---- 0x00000000-0xfffffffe: /dev/mem
`---- cs1
`---- i2c-imx0
`---- imx-esdhc0
     `---- mci0
`---- fec_imx0
     `---- miidev0
          `---- 0x00000000-0x0000003f: /dev/phy0
     `---- eth0
`---- ehci0
`---- cfi_flash0
     `---- 0x00000000-0x03ffffff: /dev/nor0
     `---- 0x00000000-0x0003ffff: /dev/self
     `---- 0x00040000-0x0005ffff: /dev/env0
     `---- 0x00000000-0x0003ffff: /dev/nor0.barebox
     `---- 0x00040000-0x0005ffff: /dev/nor0.bareboxenv
     `---- 0x00060000-0x0035ffff: /dev/nor0.kernel
     `---- 0x00360000-0x03ffffff: /dev/nor0.root

drivers:
imx_serial
     ramfs
     devfs
       fat
      tftp
   imx_iim
   fec_imx
    miidev
 cfi_flash
    <NULL>
      ehci
      ohci
   imx_spi
   i2c-imx
       mci
 imx-esdhc
        fb
     imxfb
     at25x
       mem
    cramfs
sid1-noah:/ meminfo
max system bytes =     516096
system bytes     =     516096
in use bytes     =     495984
sid1-noah:/ iomem
0x00000000 - 0xfffffffe (size 0xffffffff) iomem
  0x43f80000 - 0x43f80fff (size 0x00001000) i2c-imx0
  0x43f90000 - 0x43f90fff (size 0x00001000) imx_serial0
  0x50038000 - 0x50038fff (size 0x00001000) fec_imx0
  0x53fb4000 - 0x53fb4fff (size 0x00001000) imx-esdhc0
  0x53ff0000 - 0x53ff0fff (size 0x00001000) imx_iim0
  0x53ff4500 - 0x53ff44ff (size 0x00000000) ehci0
  0x53ff4540 - 0x53ff453f (size 0x00000000) ehci0
  0x80000000 - 0x83ffffff (size 0x04000000) ram0
    0x83af8000 - 0x83afffff (size 0x00008000) stack
    0x83b00000 - 0x83efffff (size 0x00400000) malloc space
    0x83f00000 - 0x83f3fcf4 (size 0x0003fcf5) barebox
    0x83f42124 - 0x83f48688 (size 0x00006565) bss
  0xa0000000 - 0xa3ffffff (size 0x04000000) cfi_flash0
sid1-noah:/ cpufreq 532
Switched CPU frequency to 532MHz
sid1-noah:/ dump_clocks
mpll:     532000000 Hz
upll:     240000000 Hz
arm:      399000000 Hz
ahb:      133000000 Hz
uart:      33250000 Hz
gpt:       66500000 Hz
nand:      33250000 Hz
lcd:       66500000 Hz
i2c:      120000000 Hz
sdhc1:     66500000 Hz
sid1-noah:/ cpufreq 399
Switched CPU frequency to 399MHz
sid1-noah:/ dump_clocks
mpll:     399000000 Hz
upll:     240000000 Hz
arm:      299250000 Hz
ahb:       99750000 Hz
uart:      24937500 Hz
gpt:       49875000 Hz
nand:      24937500 Hz
lcd:       49875000 Hz
i2c:      120000000 Hz
sdhc1:     49875000 Hz

I'm glad for any pointers.

Best regards
Roberto
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