From: Enric Balletbo i Serra eballetbo@iseebcn.com
We can run the DDR at 400MHz, so update the timings for that purpose.
Signed-off-by: Enric Balletbo i Serra eballetbo@iseebcn.com --- arch/arm/include/asm/arch-am33xx/ddr_defs.h | 24 ++++++++++++------------ board/isee/igep0033/board.c | 4 ++-- 2 files changed, 14 insertions(+), 14 deletions(-)
diff --git a/arch/arm/include/asm/arch-am33xx/ddr_defs.h b/arch/arm/include/asm/arch-am33xx/ddr_defs.h index 95f7a9a..fe48b5f 100644 --- a/arch/arm/include/asm/arch-am33xx/ddr_defs.h +++ b/arch/arm/include/asm/arch-am33xx/ddr_defs.h @@ -110,20 +110,20 @@ #define MT41J512M8RH125_IOCTRL_VALUE 0x18B
/* Samsung K4B2G1646E-BIH9 */ -#define K4B2G1646EBIH9_EMIF_READ_LATENCY 0x06 -#define K4B2G1646EBIH9_EMIF_TIM1 0x0888A39B -#define K4B2G1646EBIH9_EMIF_TIM2 0x2A04011A -#define K4B2G1646EBIH9_EMIF_TIM3 0x501F820F -#define K4B2G1646EBIH9_EMIF_SDCFG 0x61C24AB2 -#define K4B2G1646EBIH9_EMIF_SDREF 0x0000093B +#define K4B2G1646EBIH9_EMIF_READ_LATENCY 0x07 +#define K4B2G1646EBIH9_EMIF_TIM1 0x0AAAE51B +#define K4B2G1646EBIH9_EMIF_TIM2 0x2A1D7FDA +#define K4B2G1646EBIH9_EMIF_TIM3 0x501F83FF +#define K4B2G1646EBIH9_EMIF_SDCFG 0x61C052B2 +#define K4B2G1646EBIH9_EMIF_SDREF 0x00000C30 #define K4B2G1646EBIH9_ZQ_CFG 0x50074BE4 #define K4B2G1646EBIH9_DLL_LOCK_DIFF 0x1 -#define K4B2G1646EBIH9_RATIO 0x40 -#define K4B2G1646EBIH9_INVERT_CLKOUT 0x1 -#define K4B2G1646EBIH9_RD_DQS 0x3B -#define K4B2G1646EBIH9_WR_DQS 0x85 -#define K4B2G1646EBIH9_PHY_FIFO_WE 0x100 -#define K4B2G1646EBIH9_PHY_WR_DATA 0xC1 +#define K4B2G1646EBIH9_RATIO 0x80 +#define K4B2G1646EBIH9_INVERT_CLKOUT 0x0 +#define K4B2G1646EBIH9_RD_DQS 0x35 +#define K4B2G1646EBIH9_WR_DQS 0x3A +#define K4B2G1646EBIH9_PHY_FIFO_WE 0x97 +#define K4B2G1646EBIH9_PHY_WR_DATA 0x76 #define K4B2G1646EBIH9_IOCTRL_VALUE 0x18B
/** diff --git a/board/isee/igep0033/board.c b/board/isee/igep0033/board.c index 9e91f68..a9c34c6 100644 --- a/board/isee/igep0033/board.c +++ b/board/isee/igep0033/board.c @@ -64,7 +64,7 @@ static struct emif_regs ddr3_emif_reg_data = {
#define OSC (V_OSCK/1000000) const struct dpll_params dpll_ddr = { - 303, OSC-1, 1, -1, -1, -1, -1}; + 400, OSC-1, 1, -1, -1, -1, -1};
const struct dpll_params *get_dpll_ddr_params(void) { @@ -83,7 +83,7 @@ void set_mux_conf_regs(void)
void sdram_init(void) { - config_ddr(303, K4B2G1646EBIH9_IOCTRL_VALUE, &ddr3_data, + config_ddr(400, K4B2G1646EBIH9_IOCTRL_VALUE, &ddr3_data, &ddr3_cmd_ctrl_data, &ddr3_emif_reg_data, 0); } #endif