recompile linux kernel

Hi,
where is possible to find the uboot and linux kernel source code for your device? I can refer me to the xilinx git repos? In case yes do I need any additional patch for zedboard? Where I can find the right defconfigs?

Thanks in advance!

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0 Former Member over 13 years ago

I have recompiled linux using Xilinx source code. To successfully boot into the compiled kernel, FSBL must be recompiled with ZedBoard settings. DeviceTree is also changed: remove the i2c node and ethernet phy must be modified. Memory size should be set to 512MB.
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0 Former Member over 13 years ago

I have recompiled linux using Xilinx source code. To successfully boot into the compiled kernel, FSBL must be recompiled with ZedBoard settings. DeviceTree is also changed: remove the i2c node and ethernet phy must be modified. Memory size should be set to 512MB.
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0 Former Member over 13 years ago in reply to Former Member

How to modify the deconfig for ZED? some details?
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0 Former Member over 13 years ago in reply to Former Member

I used the same kernel configuration file for ZC702 board which can be found in Xilinx kernel source. Most PS devices are functioning properly.
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0 Former Member over 13 years ago in reply to Former Member

Hi, could you share the modifications for the zedboard define as a patch?
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0 Former Member over 13 years ago in reply to Former Member

I also recompiled uboot source and the linux kernel source from xilinx.
For uBoot : make zynq_zed_config
For Kernel: make xilinx_zynq_defconfig

It won't boot because wrong machine/arch id at boot in r1 (0x1f...... and should be 0x00000d32 for xilinx ep107).
Is the machine id defined in the compatible node in the devicetree or a uboot env variable?
As I read uboot should change r1 to correct value before giving control to kernel at PC 0x8000.

Or does anybody use the new kernel from xilinx succesfully with zedboard?
Thanks
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0 Former Member over 13 years ago in reply to Former Member

Solved my problem.
Successfully booted into newest uBoot and Linux Kernel from Xilinx repository on the Zedboard.

For uBoot I used the zynq_zc702_config ( You only have to edit the RAM size to #define PHYS_SDRAM_1_SIZE (512 * 1024 * 1024) ).
After that compiled the Kernel with standard xilinx_zynq_defconfig. Then you have to do make like normal but with uImage (make uImage).
To perform this successfully you need uboot-tools installed on your linux machine. This package contains mkimage binary which will be used.
I used a devicetree from my own project, can be compared with standard Zedboard but without OLED,HDMI and this stuff.
And for the Ramdisk I uncompressed the Xilinx 14.2 Release Ramdisk and turned it with 'mkimage'.
( Done with following command if you have uboot-tools package installed mkimage -A arm -O linux -T ramdisk -a 0x2000000 -n "Zedboard ramdisk" -d <orig_input>/ramdisk8M.image <output>/uramdisk.image.gz ).

Hope this can be a guide for others who also facing this problem ;-)
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0 Former Member over 12 years ago in reply to Former Member

Hi, you mentioned changing the ethernet phy settings for the zedboard. Can you please describe the changes?
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