[U-Boot] [PATCH v3 48/57] clk: rockchip: rk3399: Set 400MHz ddr clock

Jagan Teki jagan at amarulasolutions.com
Tue Jul 16 11:57:36 UTC 2019


Add support for setting 400MHz ddr clock.

Signed-off-by: Jagan Teki <jagan at amarulasolutions.com>
Signed-off-by: YouMin Chen <cym at rock-chips.com>
---
 drivers/clk/rockchip/clk_rk3399.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/clk/rockchip/clk_rk3399.c b/drivers/clk/rockchip/clk_rk3399.c
index 1de21c9f3e..79007b8682 100644
--- a/drivers/clk/rockchip/clk_rk3399.c
+++ b/drivers/clk/rockchip/clk_rk3399.c
@@ -839,6 +839,10 @@ static ulong rk3399_ddr_set_clk(struct rk3399_cru *cru,
 		dpll_cfg = (struct pll_div)
 		{.refdiv = 2, .fbdiv = 100, .postdiv1 = 4, .postdiv2 = 1};
 		break;
+	case 400 * MHz:
+		dpll_cfg = (struct pll_div)
+		{.refdiv = 1, .fbdiv = 50, .postdiv1 = 3, .postdiv2 = 1};
+		break;
 	case 666 * MHz:
 		dpll_cfg = (struct pll_div)
 		{.refdiv = 2, .fbdiv = 111, .postdiv1 = 2, .postdiv2 = 1};
-- 
2.18.0.321.gffc6fa0e3



More information about the U-Boot mailing list