ARM: IGEP0033: Update timing to run DDR at 400MHz.
We can run the DDR at 400MHz, so update the timings for that purpose.
Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org>
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 @@
#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 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