On Mon, Dec 3, 2012 at 10:28 AM, James White <james.white.2012@xxxxxxxxxxx> wrote: > >> Subject: Re: Arndale support >> >> >> >> On Tue, Nov 20, 2012 at 9:35 AM, Christoffer Dall >> <cdall@xxxxxxxxxxxxxxx<mailto:cdall@xxxxxxxxxxxxxxx>> wrote: >> Hi there, >> >> For those of you with an Arndale board who would like to boot KVM on >> it, I have a hack for u-boot and the kernel that makes things work. >> >> Take a look here: >> >> https://github.com/columbia/linux-kvm-arm/tree/lue_arndale-kvm >> branch: lue_arndale-kvm >> (use the arndale_kvm_defconfig if you like) >> >> And the u-boot code here: >> https://github.com/columbia/u-boot-arndale >> branch: lue_arndale-kvm >> >> >> oh, and here's some instructions for how to flash. >> >> Use this as a starting >> point: https://wiki.linaro.org/Boards/Arndale/Setup/EnterpriseUbuntuServer >> >> Make sure you flash the bl1 and the dt and such, and set up the right >> u-boot environment. >> >> To flash this u-boot, do: >> >> $ export ARCH=arm >> $ export CROSS_COMPILE=<whatever you use> >> $ cd u-boot-arndlae >> $ make arndale5250 #builds both SPL and u-boot proper >> $ sudo dd if=spl/smdk5250-spl.bin of=/dev/sdX bs=512 seek=17 >> $ sudo dd if=u-boot.bin of=/dev/sdX bs=512 seek=49 >> >> $ cd ../linux-kvm-arm >> $ git checkout lue_arndale-kvm >> $ make arndale_kvm_defconfig >> $ make -j8 uImage >> $ sudo dd if=arch/arm/boot/uImage of=/dev/sdX bs=512 seek=1105 >> >> and that's it. > > I have built u-boot and linux-kvm-arm from your trees, but when I try to boot the board I get the following error: > > MMC read: dev # 0, block # 1105, count 8192 ... 8192 blocks read: OK > ## Booting kernel from Legacy Image at 40007000 ... > Image Name: Linux-3.7.0-rc4 > Image Type: ARM Linux Kernel Image (uncompressed) > Data Size: 2640608 Bytes = 2.5 MiB > Load Address: 40008000 > Entry Point: 40008000 > Verifying Checksum ... OK > Loading Kernel Image ... OK > OK > > Starting kernel ... > > Uncompressing Linux... done, booting the kernel. > > Error: unrecognized/unsupported machine ID (r1 = 0x00000ebe). > > Available machine support: > > ID (hex) NAME > ffffffff SAMSUNG EXYNOS5 (Flattened Device Tree) > > Please check your kernel config and/or bootloader. > > > I have built a DTB as described here https://wiki.linaro.org/Boards/Arndale/Setup/EnterpriseUbuntuServer and it is the last binary on the SD card. ( I dd'ed it onto the card as described in that documentation. ) > > However, I think the kernel fails to find the DTB and so it complains. > > Looking through the u-boot code, in particular lowlevel_init.S I do not see where u-boot hands the address of the DTB to the kernel? Shouldn't that be placed in register r3 as described in Documentation/arm/Booting, or am I missing something? > > Thanks for your help. > I had this one too, but I don't remember what I did wrong. Perhaps not setting the right u-boot params. Try following this guide *carefully*: https://wiki.linaro.org/Boards/Arndale/Setup/EnterpriseUbuntuServer Cheers, -Christoffer _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/cucslists/listinfo/kvmarm
