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| author | Tom Rini <trini@ti.com> | 2012-07-26 07:49:23 -0700 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2012-09-01 14:58:12 +0200 |
| commit | 10e7e36daf1cfea24961100d3bd0f3e928fb6155 (patch) | |
| tree | 8d713f14dc2c8e266ffb7846fe81a09631475401 /arch | |
| parent | 372f11f58d2cb019b4db885b744aac6c51a97350 (diff) | |
| download | u-boot-imx-10e7e36daf1cfea24961100d3bd0f3e928fb6155.zip u-boot-imx-10e7e36daf1cfea24961100d3bd0f3e928fb6155.tar.gz u-boot-imx-10e7e36daf1cfea24961100d3bd0f3e928fb6155.tar.bz2 | |
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 <trini@ti.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/cpu/armv7/am33xx/emif4.c | 17 |
1 files changed, 2 insertions, 15 deletions
diff --git a/arch/arm/cpu/armv7/am33xx/emif4.c b/arch/arm/cpu/armv7/am33xx/emif4.c index 2f4164d..8f7aadc 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"); |