Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-26 22:52:18 +00:00
Code Issues Projects Releases Packages Wiki Activity

am33xx: Rework DDR2 EMIF initalization slightly

Browse source 
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>
This commit is contained in:
Tom Rini 2012-07-26 07:49:23 -07:00 committed by Albert ARIBAUD
parent 372f11f58d
commit 10e7e36daf
1 changed files with 2 additions and 15 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

17
arch/arm/cpu/armv7/am33xx/emif4.c
View file

@ -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");