From 1a87c24fe8f4c8afc735aa50b8fc9eaa2f230c0f Mon Sep 17 00:00:00 2001 From: Shengzhou Liu Date: Fri, 26 Aug 2016 18:30:38 +0800 Subject: [PATCH] armv8: fsl-layerscape: Update ddr erratum a008336 DDR erratum A008336 only applies to DDR controller v5.2.0. DDR controller v5.2.1 already has default 0x43b30002 in EDDRTQCR1 register for optimal performance. Signed-off-by: Shengzhou Liu Reviewed-by: York Sun --- arch/arm/cpu/armv8/fsl-layerscape/soc.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/arm/cpu/armv8/fsl-layerscape/soc.c b/arch/arm/cpu/armv8/fsl-layerscape/soc.c index f62b78d102..28928b3086 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/soc.c +++ b/arch/arm/cpu/armv8/fsl-layerscape/soc.c @@ -58,11 +58,13 @@ static void erratum_a008336(void) #ifdef CONFIG_SYS_FSL_ERRATUM_A008336 #ifdef CONFIG_SYS_FSL_DCSR_DDR_ADDR eddrtqcr1 = (void *)CONFIG_SYS_FSL_DCSR_DDR_ADDR + 0x800; - out_le32(eddrtqcr1, 0x63b30002); + if (fsl_ddr_get_version(0) == 0x50200) + out_le32(eddrtqcr1, 0x63b30002); #endif #ifdef CONFIG_SYS_FSL_DCSR_DDR2_ADDR eddrtqcr1 = (void *)CONFIG_SYS_FSL_DCSR_DDR2_ADDR + 0x800; - out_le32(eddrtqcr1, 0x63b30002); + if (fsl_ddr_get_version(0) == 0x50200) + out_le32(eddrtqcr1, 0x63b30002); #endif #endif } -- 2.25.1