From mboxrd@z Thu Jan 1 00:00:00 1970 From: jemmajones81@yahoo.co.uk (Jemma Jones) Date: Tue, 8 May 2012 14:54:17 +0100 (BST) Subject: Development tree for Cortex-A15? In-Reply-To: <4FA8FADF.2070701@arm.com> References: <1336046199.46241.YahooMailNeo@web132501.mail.ird.yahoo.com> <1336052155.37772.YahooMailNeo@web132504.mail.ird.yahoo.com> <6e4ad6defa33bf693ec45cae819469f0@localhost> <1336121047.79153.YahooMailNeo@web132504.mail.ird.yahoo.com> <1336134008.88695.YahooMailNeo@web132504.mail.ird.yahoo.com> <4f7e5540dd597d8e48fb81a5e1e26313@localhost> <1336472016.29885.YahooMailNeo@web132503.mail.ird.yahoo.com> <4FA8FADF.2070701@arm.com> Message-ID: <1336485257.47575.YahooMailNeo@web132502.mail.ird.yahoo.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org > Subject: Re: Development tree for Cortex-A15? > > On 08/05/12 11:13, Jemma Jones wrote: >>> Subject: Re: Development tree for Cortex-A15? >>>> ? Any chance you can send me a .config file that works on the kernel > in >>> this >>>> ? branch which runs on your A15x1 FastModel? >>> >>> Coming in a private email. >> >> I didn't seem to get anything? > > As far as I'm concerned, it was delivered: > > 2012-05-05 13:09:33 1SQcrl-0006uI-OX <= maz@misterjones.org U=www-data > P=local S=59827 id=7da4dd4bd4f768d907094ce4919bfffe at localhost > 2012-05-05 13:09:34 1SQcrl-0006uI-OX => jemmajones81 at yahoo.co.uk R=dnslookup > T=remote_smtp H=mx-eu.mail.am0.yahoodns.net [77.238.184.241] > 2012-05-05 13:09:34 1SQcrl-0006uI-OX Completed > > I'll resend it again, but you may want to check your spam folder. > >>>> ? I'm using the boot-wrapper from >>>> ? > http://git.linaro.org/gitweb?p=arm/models/boot-wrapper.git;a=summary in >>>> ? semi hosting mode. >>>> >>>> ? I managed to boot Android from that but I don't seem to be > able to boot >>>> ? your kernel. It just stops after the boot-wrapper says loading > uImage. >>> >>> Which dts file are you using? >> >> I don't quite understand yet how the DT stuff is used. When I build the > DTB files then I get vexpress-v2p-ca15-tc1.dtb in my arch/arm/boot directory. I > assume that one is used then for my kernel image? >> >> My .config has all the DT stuff enabled I think: >> CONFIG_ARCH_VEXPRESS_DT=y >> CONFIG_ARM_APPENDED_DTB=y >> CONFIG_ARM_ATAG_DTB_COMPAT=y >> >> Or is that not correct? > > First, you want to forget about anything TC1 related, it isn't what you need > for the Fast Model. > > Step by step instructions: > - Grab Pawe?'s DTS tree: git://linux-arm.org/arm-dts.git > - Build your zImage > - From your kernel tree, run: > ? ./script/dtc/dtc -O dtb -o rtsm_ve-cortex_a15x2.dtb > wherever_your_arm-dts_tree_is/fast_models/rtsm_ve-cortex_a15x2.dts > - cat rtsm_ve-cortex_a15x2.dtb >>arch/arm/boot/zImage > - Build your uImage if that's what you're using. > - Build your boot-wrapper as usual. > > That should get you going. > >> I have now updated to you latest kvm-arm-3.4 branch. > > That's very brave of you... ;-) > >> But the kernel still does not boot up properly, or at least I don't > seem to get any output. It just goes "Uncompressing Linux... done." > and then does nothing. >> I'm using the FastModel Cortex-A15x2 simulation. > > Let me know if it gets better with the above. Or not. > It seems as if the CLCD driver is not yet working in this configuration? It does not load for me, because the clcdfb_probe() function fails with board = dev->dev.platform_data being NULL. Is the platform initialization not setting this? Jemma