From f84880f0f31e2d293b987d37446dc8a2e34aa925 Mon Sep 17 00:00:00 2001 From: Dave Gerlach Date: Tue, 18 Feb 2014 07:32:00 -0500 Subject: [PATCH] ARM: AM43xx: Write sdram_config to secure_emif_sdram_config The register secure_emif_sdram_config in control module is copied to the EMIF sdram_config register when it is coming out of DeepSleep0 in order to ensure that the EMIF comes up for the correct type of DDR. Without this, resume can hang from within the kernel. Signed-off-by: Dave Gerlach --- arch/arm/cpu/armv7/am33xx/ddr.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/cpu/armv7/am33xx/ddr.c b/arch/arm/cpu/armv7/am33xx/ddr.c index 4173a10..9a625c4 100644 --- a/arch/arm/cpu/armv7/am33xx/ddr.c +++ b/arch/arm/cpu/armv7/am33xx/ddr.c @@ -96,6 +96,7 @@ void config_sdram_emif4d5(const struct emif_regs *regs, int nr) writel(regs->ref_ctrl, &emif_reg[nr]->emif_sdram_ref_ctrl); writel(regs->sdram_config, &emif_reg[nr]->emif_sdram_config); + writel(regs->sdram_config, &cstat->secure_emif_sdram_config); if (emif_sdram_type() == EMIF_SDRAM_TYPE_LPDDR2) { configure_mr(nr, 0); -- 2.7.4