From 10e7e36daf1cfea24961100d3bd0f3e928fb6155 Mon Sep 17 00:00:00 2001 From: Tom Rini Date: Thu, 26 Jul 2012 07:49:23 -0700 Subject: [PATCH] am33xx: Rework DDR2 EMIF initalization slightly With the previous bugfix we now don't need to set two different REF_CTRL values and instead set the final value. Signed-off-by: Tom Rini --- arch/arm/cpu/armv7/am33xx/emif4.c | 17 ++--------------- 1 file changed, 2 insertions(+), 15 deletions(-) diff --git a/arch/arm/cpu/armv7/am33xx/emif4.c b/arch/arm/cpu/armv7/am33xx/emif4.c index 2f4164df82..8f7aadc600 100644 --- a/arch/arm/cpu/armv7/am33xx/emif4.c +++ b/arch/arm/cpu/armv7/am33xx/emif4.c @@ -117,7 +117,6 @@ static void config_vtp(void) static void config_emif_ddr2(void) { - int i; int ret; struct sdram_config cfg; struct sdram_timing tmg; @@ -137,31 +136,19 @@ static void config_emif_ddr2(void) cfg.sdrcr = EMIF_SDCFG; cfg.sdrcr2 = EMIF_SDCFG; - cfg.refresh = 0x00004650; - cfg.refresh_sh = 0x00004650; + cfg.refresh = EMIF_SDREF; + cfg.refresh_sh = EMIF_SDREF; /* Program EMIF instance */ ret = config_ddr_phy(&phyc); if (ret < 0) printf("Couldn't configure phyc\n"); - ret = config_sdram(&cfg); - if (ret < 0) - printf("Couldn't configure SDRAM\n"); ret = set_sdram_timings(&tmg); if (ret < 0) printf("Couldn't configure timings\n"); - /* Delay */ - for (i = 0; i < 5000; i++) - ; - - cfg.refresh = EMIF_SDREF; - cfg.refresh_sh = EMIF_SDREF; - cfg.sdrcr = EMIF_SDCFG; - cfg.sdrcr2 = EMIF_SDCFG; - ret = config_sdram(&cfg); if (ret < 0) printf("Couldn't configure SDRAM\n"); -- 2.39.5