From a76a6f3e0434b68de30fbdf2825dea8060d066fd Mon Sep 17 00:00:00 2001 From: "Cooper Jr., Franklin" Date: Fri, 16 Jun 2017 17:25:20 -0500 Subject: [PATCH] ARM: k2g: Program DDR PHY MR2 register with the default value K2G GP doesn't require the MR2 register to be programed since the default is good enough. However, newer K2G boards do need to change this register value. Therefore, instead of not writing this register if ran on a K2G board just program the value to be written to match the default/reset value. Signed-off-by: Franklin S Cooper Jr Reviewed-by: Tom Rini --- arch/arm/mach-keystone/ddr3.c | 3 +-- board/ti/ks2_evm/ddr3_k2g.c | 2 +- 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-keystone/ddr3.c b/arch/arm/mach-keystone/ddr3.c index ee8e12e878..25a9637c3f 100644 --- a/arch/arm/mach-keystone/ddr3.c +++ b/arch/arm/mach-keystone/ddr3.c @@ -52,8 +52,7 @@ void ddr3_init_ddrphy(u32 base, struct ddr3_phy_config *phy_cfg) __raw_writel(phy_cfg->dtpr2, base + KS2_DDRPHY_DTPR2_OFFSET); __raw_writel(phy_cfg->mr0, base + KS2_DDRPHY_MR0_OFFSET); __raw_writel(phy_cfg->mr1, base + KS2_DDRPHY_MR1_OFFSET); - if (!cpu_is_k2g()) - __raw_writel(phy_cfg->mr2, base + KS2_DDRPHY_MR2_OFFSET); + __raw_writel(phy_cfg->mr2, base + KS2_DDRPHY_MR2_OFFSET); __raw_writel(phy_cfg->dtcr, base + KS2_DDRPHY_DTCR_OFFSET); __raw_writel(phy_cfg->pgcr2, base + KS2_DDRPHY_PGCR2_OFFSET); diff --git a/board/ti/ks2_evm/ddr3_k2g.c b/board/ti/ks2_evm/ddr3_k2g.c index 344961d7b6..aeb7da6bd1 100644 --- a/board/ti/ks2_evm/ddr3_k2g.c +++ b/board/ti/ks2_evm/ddr3_k2g.c @@ -27,7 +27,7 @@ struct ddr3_phy_config ddr3phy_800_2g = { .dtpr2 = 0x50022A00ul, .mr0 = 0x00001430ul, .mr1 = 0x00000006ul, - .mr2 = 0x00000018ul, + .mr2 = 0x00000000ul, .dtcr = 0x710035C7ul, .pgcr2 = 0x00F03D09ul, .zq0cr1 = 0x0001005Dul, -- 2.39.5