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-rw-r--r--arch/arm/dts/stm32f746-disco.dts13
1 files changed, 8 insertions, 5 deletions
diff --git a/arch/arm/dts/stm32f746-disco.dts b/arch/arm/dts/stm32f746-disco.dts
index 8e4576bdc1..e720ff1207 100644
--- a/arch/arm/dts/stm32f746-disco.dts
+++ b/arch/arm/dts/stm32f746-disco.dts
@@ -106,12 +106,15 @@
status = "okay";
mr-nbanks = <1>;
- /* sdram memory configuration from sdram datasheet IS42S16400J */
+ /* Memory configuration from sdram datasheet MT48LC_4M32_B2B5-6A */
bank1: bank@0 {
- st,sdram-control = /bits/ 8 <NO_COL_8 NO_ROW_12 MWIDTH_16 BANKS_2
- CAS_3 RD_BURST_EN RD_PIPE_DL_0>;
- st,sdram-timing = /bits/ 8 <TMRD_1 TXSR_60 TRAS_42 TRC_60 TRP_18
- TRCD_18>;
+ st,sdram-control = /bits/ 8 <NO_COL_8 NO_ROW_12 MWIDTH_16 BANKS_4
+ CAS_3 SDCLK_2 RD_BURST_EN
+ RD_PIPE_DL_0>;
+ st,sdram-timing = /bits/ 8 <TMRD_2 TXSR_6 TRAS_4 TRC_6 TWR_2
+ TRP_2 TRCD_2>;
+ /* refcount = (64msec/total_row_sdram)*freq - 20 */
+ st,sdram-refcount = < 1542 >;
};
};