Mainline kernel on snowball

[horms@verge.net.au (Simon Horman)]

On Thu, Jul 25, 2013 at 08:41:08AM +0200, Uwe Kleine-K?nig wrote:
> Hello Simon,
> 
> On Thu, Jul 25, 2013 at 02:23:17PM +0900, Simon Horman wrote:
> > I apologise for the na?ve nature of this question,
> > but I do not seem to be able to make any progress of my own accord.
> > 
> > I would like to boot the mainline kernel - ideally v3.10 and v3.11-rcX -
> > on snowball. The reason being to verify CPU hotplug which
> > seems to be broken on shmobile, though that is tangential to this post.
> > 
> > My procedure, which does not work, is as follows.
> > I have tried a number of different versions all with roughly
> > the same result.
> > 
> > 1. Build kernel
> > # git checkout v3.10.2 # I have tried several over versions too.
> > # make u8500_defconfig
> > Edit .config to enable CONFIG_ARM_APPENDED_DTB
> > # LOADADDR=0x100000 make uImage dtbs
> > 
> > 2. Append dtb to zImage and recreate uImage
> > mv arch/arm/boot/zImage arch/arm/boot/zImage.tmp
> > cat arch/arm/boot/zImage.tmp arch/arm/boot/dts/snowball.dtb
> There must be a redirection in the cat command, something like
> 
> 	cat arch/arm/boot/zImage.tmp arch/arm/boot/dts/snowball.dtb > arch/arm/boot/zImage
> 
> (I guess you have that as otherwise the following command would fail.)

Sorry for missing that when I wrote my email. Yes, it is there.

> > /bin/sh scripts/mkuboot.sh \
> > 	-A arm -O linux -C none  -T kernel \
> > 	-a 0x100000 -e 0x100000 -n 'Linux-3.10.2' \
> > 	-d arch/arm/boot/zImage arch/arm/boot/uImage
> > 
> > 3. Boot uImage from u-boot
> > Snowball $ setenv ethaddr 3e:c4:73:05:d1:a1
> > Snowball $ bootp;bootm
> > smc911x: detected LAN9221 controller
> > smc911x: phy initialized
> > smc911x: MAC 3e:c4:73:05:d1:a1
> > BOOTP broadcast 1
> > *** Unhandled DHCP Option in OFFER/ACK: 28
> > *** Unhandled DHCP Option in OFFER/ACK: 44
> > *** Unhandled DHCP Option in OFFER/ACK: 28
> > *** Unhandled DHCP Option in OFFER/ACK: 44
> > DHCP client bound to address 10.3.3.146
> > Using smc911x-0 device
> > TFTP from server 10.3.3.135; our IP address is 10.3.3.146
> > Filename 'snowball/uImage'.
> > Load address: 0x100000
> > Loading: #################################################################
> >          #################################################################
> >          #################################################################
> >          #################################################################
> >          ##########################################################
> > done
> > Bytes transferred = 2540191 (26c29f hex)
> > ## Booting kernel from Legacy Image at 00100000 ...
> >    Image Name:   'Linux-3.10.2'
> >    Image Type:   ARM Linux Kernel Image (uncompressed)
> >    Data Size:    2540127 Bytes =  2.4 MB
> >    Load Address: 00100000
> >    Entry Point:  00100000
> >    XIP Kernel Image ... OK
> > OK
> > 
> > Starting kernel ...
> Try enabling DEBUG_LL and EARLY_PRINTK and pass "earlyprintk" on the
> kernel commandline. That might make the kernel more talkative.

Thanks. Unfortunately I don't seem to get any further.