From f1ce1a99f289474cf047923981369d5ba140c125 Mon Sep 17 00:00:00 2001 From: Dinh Nguyen Date: Wed, 19 Feb 2014 14:56:38 -0600 Subject: [PATCH] dts: socfpga: Update clock entry to support multiple parents The periph_pll and sdram_pll can have multiple parents. Update the device tree to list all the possible parents for the PLLs. Add an entry for the the f2s_sdram_ref_clk, which is a possible parent for the sdram_pll. Also remove the clock-frequency entry in the f2s_periph_ref_clk, as this property should be placed in dts file. Signed-off-by: Dinh Nguyen Cc: Mike Turquette Cc: Steffen Trumtrar --- arch/arm/boot/dts/socfpga.dtsi | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi index 3796141fb8bd..3ce09e39dc9c 100644 --- a/arch/arm/boot/dts/socfpga.dtsi +++ b/arch/arm/boot/dts/socfpga.dtsi @@ -92,7 +92,12 @@ clocks { #address-cells = <1>; #size-cells = <0>; - osc: osc1 { + osc1: osc1 { + #clock-cells = <0>; + compatible = "fixed-clock"; + }; + + osc2: osc2 { #clock-cells = <0>; compatible = "fixed-clock"; }; @@ -100,7 +105,11 @@ osc: osc1 { f2s_periph_ref_clk: f2s_periph_ref_clk { #clock-cells = <0>; compatible = "fixed-clock"; - clock-frequency = <10000000>; + }; + + f2s_sdram_ref_clk: f2s_sdram_ref_clk { + #clock-cells = <0>; + compatible = "fixed-clock"; }; main_pll: main_pll { @@ -108,7 +117,7 @@ main_pll: main_pll { #size-cells = <0>; #clock-cells = <0>; compatible = "altr,socfpga-pll-clock"; - clocks = <&osc>; + clocks = <&osc1>; reg = <0x40>; mpuclk: mpuclk { @@ -162,7 +171,7 @@ periph_pll: periph_pll { #size-cells = <0>; #clock-cells = <0>; compatible = "altr,socfpga-pll-clock"; - clocks = <&osc>; + clocks = <&osc1>, <&osc2>, <&f2s_periph_ref_clk>; reg = <0x80>; emac0_clk: emac0_clk { @@ -213,7 +222,7 @@ sdram_pll: sdram_pll { #size-cells = <0>; #clock-cells = <0>; compatible = "altr,socfpga-pll-clock"; - clocks = <&osc>; + clocks = <&osc1>, <&osc2>, <&f2s_sdram_ref_clk>; reg = <0xC0>; ddr_dqs_clk: ddr_dqs_clk { -- 2.45.2