From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nishanth Menon Date: Fri, 6 Mar 2015 11:39:21 -0600 Subject: [U-Boot] [PATCH V5 00/11] ARM: OMAP3-DRA7: CP15 erratum workarounds and improvements In-Reply-To: <1425616866-11702-1-git-send-email-nm@ti.com> References: <1425616866-11702-1-git-send-email-nm@ti.com> Message-ID: <54F9E649.3070001@ti.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de 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