AVR32: Make SDRAM refresh rate configurable

[platform/kernel/u-boot.git] / board / atmel / atngw100 / atngw100.c

diff --git a/board/atmel/atngw100/atngw100.c b/board/atmel/atngw100/atngw100.c
index bd4b6b4..1ccbe2c 100644 (file)
--- a/board/atmel/atngw100/atngw100.c
+++ b/board/atmel/atngw100/atngw100.c
@@ -23,6 +23,7 @@
 
 #include <asm/io.h>
 #include <asm/sdram.h>
+#include <asm/arch/clk.h>
 #include <asm/arch/gpio.h>
 #include <asm/arch/hmatrix2.h>
 
@@ -40,6 +41,8 @@ static const struct sdram_info sdram = {
        .trcd           = 2,
        .tras           = 5,
        .txsr           = 5,
+       /* 7.81 us */
+       .refresh_period = (781 * (SDRAMC_BUS_HZ / 1000)) / 100000,
 };
 
 int board_early_init_f(void)