linux-kernel - Re: [PATCH v2 0/4] Exynos 5410 Dual cluster support

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Message-ID: <87fvrinwgk.fsf@linaro.org>
Date:	Wed, 30 Oct 2013 16:57:31 -0700
From:	Kevin Hilman <khilman@...aro.org>
To:	Mauro Ribeiro <mdrjr0@...il.com>
Cc:	Aliaksei Katovich <aliaksei.katovich@...il.com>,
	Vyacheslav Tyrtov <v.tyrtov@...sung.com>,
	Mark Rutland <mark.rutland@....com>,
	devicetree@...r.kernel.org, Kukjin Kim <kgene.kim@...sung.com>,
	Russell King <linux@....linux.org.uk>,
	Ben Dooks <ben-linux@...ff.org>,
	Pawel Moll <pawel.moll@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Stephen Warren <swarren@...dotorg.org>,
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
	Rob Herring <rob.herring@...xeda.com>,
	Tarek Dakhran <t.dakhran@...sung.com>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	linux-samsung-soc@...r.kernel.org, Rob Landley <rob@...dley.net>,
	Mike Turquette <mturquette@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Naour Romain <romain.naour@...nwide.fr>,
	linux-arm-kernel@...ts.infradead.org,
	Heiko Stuebner <heiko@...ech.de>
Subject: Re: [PATCH v2 0/4] Exynos 5410 Dual cluster support

Hi Mauro,

Mauro Ribeiro <mdrjr0@...il.com> writes:

> Kevin,
>
> https://github.com/hardkernel/u-boot/tree/odroid-v2012.07

Yes, this is the one I'm using, but USB networking doesn't seem to work
with that.  Do you have USB networking working with that u-boot?  If so,
what changes to the config did you make?

Kevin

>
> On Thu, Oct 17, 2013 at 5:00 PM, Kevin Hilman <khilman@...aro.org> wrote:
>
>> Aliaksei Katovich <aliaksei.katovich@...il.com> writes:
>>
>> > hi Kevin;
>> >
>> >> Vyacheslav Tyrtov <v.tyrtov@...sung.com> writes:
>> >>
>> >> > The series of patches represent support of Exynos 5410 SoC
>> >> >
>> >> > The Exynos 5410 is the first Samsung SoC based on bigLITTLE
>> architecture.
>> >> > Patches allow all 8 CPU cores (4 x A7 and 4 x A15) to run at the same
>> time
>> >> >
>> >> > Patches add new platform description, support of clock controller,
>> >> > dual cluster support and device tree for Exynos 5410
>> >> >
>> >> > Has been build on v3.12-rc5.
>> >> > Has been tested on Exynos 5410 reference board (exynos_defconfig).
>> >>
>> >> Has anyone tried this on the exynos5410 based odroid-xu yet?
>> >>
>> >> I tried booting this on my recently arrived odroid-xu, but am not
>> >> getting it to boot.
>> >
>> >       I am able to boot my odroid-xu+e to busybox with these patches
>> applied
>> >       against 3.12-rc5: exynos_defconfig and exynos5410-smdk5410.dtb were
>> >       used.
>> >
>> >       However there seem to be some issues with virq allocations, like
>> this:
>>
>> Ah, I've seen the same thing, but for me it doesn't boot reliably.
>> Sometimes there's an immediate fault like this[1], and once in a rare
>> while, it starts to boot and I see the same virq errors.
>>
>> Curious what you guys are using for boot loaders.  I found some
>> pre-build u-boot binaries along with the necessary BL1/2 binary blobs in
>> the hardkernel kernel repo: https://github.com/hardkernel/linux.git
>> branch: origin/odroidxu-3.4.y
>> path: tools/hardkernel/u-boot-pre-built
>>
>> Unfortunatly, that u-boot doesn't have usb networking support built in
>> so I couln't use u-boot to tftp the kernel, so I was able to use fasboot
>> to load the kernel/ramdisk, but it's very flaky.
>>
>> Do you have an pointers of where to get a known working bootloader.
>> Ideally, a u-boot with networking/tftp support would be ideal.
>>
>> Thanks,
>>
>> Kevin
>>
>> [1]
>> USB cable Connected![0x4]
>> Starting download of 10008576 bytes
>> .........
>> downloading of 10008576 bytes finished
>> Kernel size: 00296bc5
>> Ramdisk size: 006f3c00
>> Booting kernel..
>> ## Booting kernel from Legacy Image at 40008000 ...
>>    Image Name:   Linux
>>    Image Type:   ARM Linux Kernel Image (uncompressed)
>>    Data Size:    2714501 Bytes = 2.6 MiB
>>    Load Address: 40008000
>>    Entry Point:  40008000
>>    Verifying Checksum ... OK
>>    XIP Kernel Image ... OK
>> OK
>>
>> Starting kernel ...
>>
>> undefined instruction
>> pc : [<4000800c>]          lr : [<bfc65df4>]
>> sp : bfb5bbc8  ip : 00000000     fp : 00001251
>> r10: 00000000  r9 : 00000000     r8 : bfb5bf30
>> r7 : 00000000  r6 : 00000000     r5 : 40008000  r4 : bfcabac0
>> r3 : bfb5bfa8  r2 : 40000100     r1 : 00001251  r0 : 00000000
>> Flags: nZCv  IRQs off  FIQs off  Mode SVC_32
>> Resetting CPU ...
>>
>> emmc resetting ...
>> resetting ...
>>
>> --
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