[U-Boot] [PATCH V5 00/11] ARM: OMAP3-DRA7: CP15 erratum workarounds and improvements

[Nishanth Menon]

On 03/05/2015 10:40 PM, Nishanth Menon wrote:
> The fifth incarnation should be proper, I hope. (skipping all the
> blurb and pointing to v1 for the blurb).
> 
> Changes since v4:
> 	- smc is back to handassembled thanks to gcc versions
> 	- fixes in multiple call handling within cpu_init_cp15 -> thanks to Matt Porter's test log showing fail on r1p3 cortex-a8 (where the errata must be applied)
> 
> v4: http://thread.gmane.org/gmane.comp.boot-loaders.u-boot/213863
> V3: http://thread.gmane.org/gmane.comp.boot-loaders.u-boot/213207/focus=213307
> V2: http://comments.gmane.org/gmane.comp.boot-loaders.u-boot/213060
> V1: http://comments.gmane.org/gmane.comp.boot-loaders.u-boot/212174
> 
> This time, the series is based on u-boot master
> git://git.denx.de/u-boot.git
> master 694cc87b76b1 arm, da8xx: convert ipam390 board to generic board support
> 
> Git tree: https://gitorious.org/nm-kernel/u-boot-nm (at least till gitorious is around..)
> branch errata-v5-master-694cc87b76b1
> 
> Git link: https://gitorious.org/nm-kernel/u-boot-nm.git errata-v5-master-694cc87b76b1
> 
> Testing: with http://paste.ubuntu.org.cn/2522971 (4.0-rc1 patch)

If folks have a older beagle around and dont want to startup the
kernel for this, http://paste.ubuntu.org.cn/2525810 is a trivial patch
to dump the same from the bootloader.

> 
> BeagleBoard-X15:
> 	Before: CPUID=0x412fc0f2 L2CTLR=0x01800083 L2ACLR=0x00000000 L2PFR=0x000009b0 ACTLR=0x00000040
> 	After: CPUID=0x412fc0f2 L2CTLR=0x01800083 L2ACLR=0x00000198 L2PFR=0x000009b0 ACTLR=0x00000040
> 
> OMAP5uEVM:
> 	Before: CPUID=0x412fc0f2 L2CTLR=0x01800083 L2ACLR=0x00000000 L2PFR=0x000009b0 ACTLR=0x00000040
> 	After: CPUID=0x412fc0f2 L2CTLR=0x01800083 L2ACLR=0x00000198 L2PFR=0x000009b0 ACTLR=0x00000040
> 
> Beagle-XM: this is a r3p2 cortex-a8
> 	Before: CPUID=0x413fc082 ACR=0x000000e2 L2AUXCR=0x00000042
> 	After: CPUID=0x413fc082 ACR=0x00000042 L2AUXCR=0x00000042
> 	To emulate matt's board, I hacked u-boot to force the code flow.
> 	Testing with (hack http://paste.ubuntu.org.cn/2525559): CPUID=0x413fc082 ACR=0x000000e2 L2AUXCR=0x00000042
> 
> I dont have access to other omap3 platforms to give a better coverage,
> so, I welcome as much testing as possible.


[...]

-- 
Regards,
Nishanth Menon