From e980f9418f45a3c0d53e54bc17bd48406060c2bb Mon Sep 17 00:00:00 2001 From: Simon Horman Date: Tue, 15 Mar 2016 09:26:33 +0900 Subject: [PATCH] ARM: dts: r8a7794: add CAN clocks to device tree Add CAN nodes to r8a7794 device tree. Based on work by Sergei Shtylyov for the r8a7791 SoC. Signed-off-by: Simon Horman Reviewed-by: Geert Uytterhoeven Acked-by: Ramesh Shanmugasundaram --- arch/arm/boot/dts/r8a7794.dtsi | 33 ++++++++++++++++++++++++------- include/dt-bindings/clock/r8a7794-clock.h | 3 +++ 2 files changed, 29 insertions(+), 7 deletions(-) diff --git a/arch/arm/boot/dts/r8a7794.dtsi b/arch/arm/boot/dts/r8a7794.dtsi index 7d7d187..2d8835b 100644 --- a/arch/arm/boot/dts/r8a7794.dtsi +++ b/arch/arm/boot/dts/r8a7794.dtsi @@ -843,6 +843,22 @@ clock-frequency = <0>; }; + /* External USB clock - can be overridden by the board */ + usb_extal_clk: usb_extal { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <48000000>; + }; + + /* External CAN clock */ + can_clk: can { + compatible = "fixed-clock"; + #clock-cells = <0>; + /* This value must be overridden by the board. */ + clock-frequency = <0>; + status = "disabled"; + }; + /* External SCIF clock */ scif_clk: scif { compatible = "fixed-clock"; @@ -857,10 +873,11 @@ compatible = "renesas,r8a7794-cpg-clocks", "renesas,rcar-gen2-cpg-clocks"; reg = <0 0xe6150000 0 0x1000>; - clocks = <&extal_clk>; + clocks = <&extal_clk &usb_extal_clk>; #clock-cells = <1>; clock-output-names = "main", "pll0", "pll1", "pll3", - "lb", "qspi", "sdh", "sd0", "z"; + "lb", "qspi", "sdh", "sd0", "z", + "rcan"; #power-domain-cells = <0>; }; /* Variable factor clocks */ @@ -1115,20 +1132,22 @@ compatible = "renesas,r8a7794-mstp-clocks", "renesas,cpg-mstp-clocks"; reg = <0 0xe6150994 0 4>, <0 0xe61509a4 0 4>; clocks = <&cp_clk>, <&cp_clk>, <&cp_clk>, <&cp_clk>, - <&cp_clk>, <&cp_clk>, <&cp_clk>, - <&cpg_clocks R8A7794_CLK_QSPI>, <&hp_clk>, <&hp_clk>, - <&hp_clk>, <&hp_clk>, <&hp_clk>, <&hp_clk>; + <&cp_clk>, <&cp_clk>, <&cp_clk>, <&p_clk>, + <&p_clk>, <&cpg_clocks R8A7794_CLK_QSPI>, + <&hp_clk>, <&hp_clk>, <&hp_clk>, <&hp_clk>, + <&hp_clk>, <&hp_clk>; #clock-cells = <1>; clock-indices = ; clock-output-names = "gpio6", "gpio5", "gpio4", "gpio3", "gpio2", - "gpio1", "gpio0", "qspi_mod", + "gpio1", "gpio0", "rcan1", "rcan0", "qspi_mod", "i2c5", "i2c4", "i2c3", "i2c2", "i2c1", "i2c0"; }; mstp11_clks: mstp11_clks@e615099c { diff --git a/include/dt-bindings/clock/r8a7794-clock.h b/include/dt-bindings/clock/r8a7794-clock.h index f843de6..9703fbd 100644 --- a/include/dt-bindings/clock/r8a7794-clock.h +++ b/include/dt-bindings/clock/r8a7794-clock.h @@ -21,6 +21,7 @@ #define R8A7794_CLK_SDH 6 #define R8A7794_CLK_SD0 7 #define R8A7794_CLK_Z 8 +#define R8A7794_CLK_RCAN 9 /* MSTP0 */ #define R8A7794_CLK_MSIOF0 0 @@ -95,6 +96,8 @@ #define R8A7794_CLK_GPIO2 10 #define R8A7794_CLK_GPIO1 11 #define R8A7794_CLK_GPIO0 12 +#define R8A7794_CLK_RCAN1 15 +#define R8A7794_CLK_RCAN0 16 #define R8A7794_CLK_QSPI_MOD 17 #define R8A7794_CLK_I2C5 25 #define R8A7794_CLK_I2C4 27 -- 2.7.4