From: Piotr Ziecik Date: Tue, 17 Mar 2009 15:17:50 +0000 (-0600) Subject: powerpc/5200: Enable CPU_FTR_NEED_COHERENT for MPC52xx X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=c9310920e6e7ae0a5c0accbd57d34c194cb31780;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git powerpc/5200: Enable CPU_FTR_NEED_COHERENT for MPC52xx BestComm, a DMA engine in MPC52xx SoC, requires snooping when CPU caches are enabled to work properly. Adding CPU_FTR_NEED_COHERENT fixes NFS problems on MPC52xx machines introduced by 'powerpc/mm: Fix handling of _PAGE_COHERENT in BAT setup code' (sha1: 4c456a67f501b8b15542c7c21c28812bf88f484b). Signed-off-by: Piotr Ziecik Signed-off-by: Grant Likely --- diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h index 4911104791c3..21172badd708 100644 --- a/arch/powerpc/include/asm/cputable.h +++ b/arch/powerpc/include/asm/cputable.h @@ -241,9 +241,11 @@ extern const char *powerpc_base_platform; /* We need to mark all pages as being coherent if we're SMP or we have a * 74[45]x and an MPC107 host bridge. Also 83xx and PowerQUICC II * require it for PCI "streaming/prefetch" to work properly. + * This is also required by 52xx family. */ #if defined(CONFIG_SMP) || defined(CONFIG_MPC10X_BRIDGE) \ - || defined(CONFIG_PPC_83xx) || defined(CONFIG_8260) + || defined(CONFIG_PPC_83xx) || defined(CONFIG_8260) \ + || defined(CONFIG_PPC_MPC52xx) #define CPU_FTR_COMMON CPU_FTR_NEED_COHERENT #else #define CPU_FTR_COMMON 0