Can't boot linaro kernel

I've tried to follow the tutorial, "Ubuntu_on_Zedboard_Tutroial_v14.4_01.pdf" to build ubuntu on zedboard with adv7511. However, after running the u-boot and load the kernel, the following error got and the kernel hangs,

** Unable to read "ramdisk8M.image.gz" from mmc 0:1 **
## Starting application at 0x00008000 ...
Uncompressing Linux... done, booting the kernel.

Error: unrecognized/unsupported machine ID (r1 = 0x0fb71dd0).

Available machine support:

ID (hex) NAME
00000d32 Xilinx Zynq Platform

Please check your kernel config and/or bootloader

I've exactly followed the tutorial. All the u-boot.bin, zImage and devicetree.dtb are successfully built.

Any suggestion what's wrong?

0 Former Member over 10 years ago

Enable macro CONFIG_MACH_TYPE in uboot code.
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0 joswa over 10 years ago

I can't find it is defined anywhere or any MACH_TYPE for zedboard. Where should I enable this macro?
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0 Former Member over 10 years ago

Joswa, you should add the macro define in zynq_zed.h in uboot code. #define CONFIG_MACH_TYPE 0xd32
If you define the macro, the value will be translate to bi_arch_number in board.c, and at last translate to kernel in function kernel_entry(0, machid, r2) in bootm.c
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0 Former Member over 10 years ago

It's my post
you may have seen it

http://zedboard.org/content/solved-unrecognizedunsupported-machine-idubuntu-desktop-linux-reference-designs

works for me
and hope works for you too
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0 Former Member over 10 years ago

Hi,

I'm tryng to use Linaro with kernel linux-3.6-digilent
and I cannot boot correctly from SDRAM
-
when I compile the kernel with option:
make ARCH=arm xilinx_zynq_defconfig
-
and CONFIG_XILINX_FIXED_DEVTREE_ADDR=y
then booting the uImage with the on-ram fs hangs after writing:
Calibrating delay loop...
-
but if I boot the zImage and the linaro fs on 2nd partition it boots and when the boot ends
it starts an endless printout of:
watchdog watchdog0: watchdog did not stop!

if CONFIG_XILINX_FIXED_DEVTREE_ADDR is not set
then booting the uImage with the on-ram fs is OK
-
but if I boot the zImage and the linaro fs on 2nd partition
it generates the unrecognized/unsupported machine ID (r1=0x1fb6c62c)
and says that the ID should be 00000d32
-
(I did configure the #define CONFIG_MACH_TYPE 0xd32 in u-boot,
but this doesn't work)
-
when I compile the kernel with option:
make ARCH=arm digilent_zed_defconfig
-
if CONFIG_XILINX_FIXED_DEVTREE_ADDR=y
then booting the uImage with the on-ram fs hangs after writing:
Uncompressing Linux... done, booting the kernel.
-
booting the zImage and the linaro fs on 2nd partition
it starts an endless printout of:
[ ss.cc0000]watchdog watchdog0: watchdog did not stop!
if CONFIG_XILINX_FIXED_DEVTREE_ADDR is not set
then booting the uImage with the on-ram fs is OK
-
if I boot the zImage and the linaro fs on 2nd partition it hangs after writing:
Uncompressing Linux... done, booting the kernel.
-
in conclusion Linaro (or a FS from the 2nd partition) is usable only with the zImage from linux-3.3
-
how to fix the watchdog problem?
it is very complicated to use the FS on ram and loosing everything at each turn-off
I even tried to use linux-digilent-dev-3.8, with the same results;
anyway within that Makefile there is the old 3.6.0 indication
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0 Former Member over 10 years ago

I believe you are using an older u-boot which launches the kernel via "go 0x8000" with a devicetree at 0x100000; but your newer kernel is expecting to be started with "bootm <kernel> <ramdisk> <devicetree>" and looking for these addresses in registers.

Perhaps my blog post can help.
http://fpgacpu.wordpress.com/2013/05/24/yet-another-guide-to-running-linaro-ubuntu-desktop-on-xilinx-zynq-on-the-zedboard/
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