[U-Boot] Booting armv8 kernel on uboot

[Vishal Bhoj]

Hi,


On 22 May 2014 22:06, Tom Rini <trini at ti.com> wrote:

> On Thu, May 22, 2014 at 10:26:17PM +0800, fenghua at phytium.com.cn wrote:
> >
> >
> > > Hi ,
> > > I have added mmc driver into the vexpress64 board file for uboot and
> tested
> > > it on FVP base model. I tried booting a kernel on that but it is
> aborting
> > > with the following message:
> > > Final value for argc=3
> > >   Loading Kernel Image ... OK
> > >   kernel loaded at 0x00080000, end = 0x00827024
> > > using: FDT
> > >   reserving fdt memory region: addr=80000000 size=10000
> > > ## initrd_high = 0xffffffffffffffff, copy_to_ram = 1
> > >   ramdisk load start = 0x00000000, ramdisk load end = 0x00000000
> > > ## device tree at 0000000090008000 ... 000000009000a850 (len=22609
> [0x5851])
> > >   Loading Device Tree to 000000009fffa000, end 000000009ffff850 ... OK
> > > Initial value for argc=3
> > > Final value for argc=3
> > > ## Transferring control to Linux (at address 80000)...
> > > Starting kernel ...
> > >
> > > "Synchronous Abort" handler, esr 0x02000000
> > > ELR:     80000
> > > LR:      fff90fc8
> > > x0 : 000000009fffa000 x1 : 000000001c090000
> > > x2 : 000000001c090000 x3 : 0000000000000020
> > > x4 : 00000000fff6b834 x5 : 0000000000000000
> > > x6 : 00000000fff6bb40 x7 : 00000000ffffffd0
> > > x8 : 000000000000000f x9 : 000000007ff8e000
> > > x10: 00000000fffb7188 x11: 0000000000000000
> > > x12: 0000000000006000 x13: 0000000000000004
> > > x14: 0000000000000003 x15: 00000000fffc7c20
> > > x16: 0000000000000000 x17: 0000000000000000
> > > x18: 00000000fff6beb8 x19: 0000000000080000
> > > x20: 00000000fffc7a70 x21: 0000000000000000
> > > x22: 0000000000000000 x23: 00000000fff6d8d8
> > > x24: 0000000000000000 x25: 00000000fffc2630
> > > x26: 0000000000000000 x27: 0000000080008000
> > > x28: 0000000000000000 x29: 00000000fff6bb40
> > >
> > > Can anyone please provide the procedure on how to boot the kernel with
> > > u-boot on armv8 models ?
> > I always use mkimage converting kernel to uImage and booting it. It
> works fine.
> > Wish this help you.
>
> Which version of the model are you using and which kernel tree?  Thanks!
>

I am using 3.10 Linaro stable kernel which is boots up on UEFI [1]. I will
give a try with the mainline kernel next. This is the FVP model version:
FVP_VE_AEMv8A -v
Fast Models [0.8.5202 (Oct 22 2013)]
Copyright 2000-2013 ARM Limited.
All Rights Reserved.
Top component name: FVP_Base_AEMv8A_AEMv8A


[1] https://git.linaro.org/kernel/linux-linaro-stable.git/

>
> --
> Tom
>