[U-Boot] [PATCH v3 47/57] clk: rockchip: rk3399: Set 50MHz ddr clock

Jagan Teki
2019-07-16T11:57:35Z

Add support for setting 50MHz ddr clock.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: YouMin Chen <cym@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 5d1ad94e85..1de21c9f3e 100644
--- a/drivers/clk/rockchip/clk_rk3399.c
+++ b/drivers/clk/rockchip/clk_rk3399.c
@@ -827,6 +827,10 @@ static ulong rk3399_ddr_set_clk(struct rk3399_cru *cru,

/* clk_ddrc == DPLL = 24MHz / refdiv * fbdiv / postdiv1 / postdiv2 */
switch (set_rate) {
+ case 50 * MHz:
+ dpll_cfg = (struct pll_div)
+ {.refdiv = 1, .fbdiv = 12, .postdiv1 = 3, .postdiv2 = 2};
+ break;
case 200 * MHz:
dpll_cfg = (struct pll_div)
{.refdiv = 1, .fbdiv = 50, .postdiv1 = 6, .postdiv2 = 1};
--
2.18.0.321.gffc6fa0e3