[U-Boot] [PATCH 1/3] rockchip: rk3036: fix pll config for correct frequency
Kever Yang
kever.yang at rock-chips.com
Tue Nov 28 07:17:51 UTC 2017
There is a fixed div-2 between PLL and clk_ddr/clk_ddrphy,
so we need to double to pll output and then ddr can work
in correct frequency.
Signed-off-by: Kever Yang <kever.yang at rock-chips.com>
---
arch/arm/mach-rockchip/rk3036/sdram_rk3036.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/mach-rockchip/rk3036/sdram_rk3036.c b/arch/arm/mach-rockchip/rk3036/sdram_rk3036.c
index 460dd60..51b2406 100644
--- a/arch/arm/mach-rockchip/rk3036/sdram_rk3036.c
+++ b/arch/arm/mach-rockchip/rk3036/sdram_rk3036.c
@@ -37,7 +37,7 @@ struct rk3036_sdram_priv {
/* use integer mode, 396MHz dpll setting
* refdiv, fbdiv, postdiv1, postdiv2
*/
-const struct pll_div dpll_init_cfg = {1, 50, 3, 1};
+const struct pll_div dpll_init_cfg = {1, 66, 2, 1};
/* 396Mhz ddr timing */
const struct rk3036_ddr_timing ddr_timing = {0x18c,
--
1.9.1
More information about the U-Boot
mailing list