From mboxrd@z Thu Jan 1 00:00:00 1970 From: trblinux@gmail.com (Tushar Behera) Date: Wed, 11 Jun 2014 11:09:37 +0530 Subject: exynos5420-peach-pi: linux-next boot fails unless mau_epll left enabled? In-Reply-To: References: <7hoay6sxjl.fsf@paris.lan> <539764AF.4090409@collabora.co.uk> Message-ID: <5397EB99.1070209@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 06/11/2014 01:56 AM, Doug Anderson wrote: > Javier, > > On Tue, Jun 10, 2014 at 1:03 PM, Javier Martinez Canillas > wrote: >> Yes, I did not have this issue before. However... I installed the latest Peach >> pit recovery image you provided me and mainline kernel started to hang on boot. >> I remembered this thread so tested Kevin's patch which make it boot again. >> >> You said that chain-booting u-boot runs the sound init code but did you try >> booting a signed FIT image using the verified u-boot? > > Right, I'd bet that it's actually verified boot that's calling the > sound init code (probably just in case it needs to beep at the user). > ...so this would happen even without chain booting. I haven't tried > signing / booting without chain booting, but I can totally believe it > would hang just as easily. > > >> I'm asking because I'm see the hang both when chain-booting nv-u-boot from a >> kernel partition and booting a signed FIT image with the verified u-boot. >> >> So it seems this is a regression in latest U-boot and I didn't run into this >> before due having an older RW U-Boot on my Peach pit? > > You must have had a very old RW U-Boot, possibly one before audio > support was added. I think we just need to fix this in the kernel so > it doesn't hang. > > -Doug > Hi Kevin, I have posted the fixes[1] in the mailing list. Please test and update. Changes: 1 patch in drivers/clk/samsung/clk-exynos-audss.c 1 patch in arch/arm/boot/dts/exynos5420.dtsi For testing audio in Peach-pi, 1 patch in arch/arm/boot/dts/exynos5800-peach-pi.dts [1] [PATCH 0/3] Fix boot-hang on Peach-pit and Enable audio -- Tushar Behera