ARM: dts: Add basic clocks for dm816x

The clocks on dm816x are a bit different from the other omap
variants. The clocks are sourced from a FAPLL (Flying Adder PLL)
unlike on other omaps. Other than that, it's a similar setup
to am33xx with extra muxes and dividers that can be defined
as existing component clocks.

Cc: Brian Hutchinson <b.hutchman@gmail.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

2 files changed, 251 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/dm816x-clocks.dtsi b/arch/arm/boot/dts/dm816x-clocks.dtsi
new file mode 100644
index 000000000000..50d9d338fbe9
--- /dev/null
+++ b/arch/arm/boot/dts/dm816x-clocks.dtsi
@@ -0,0 +1,250 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+&scrm {
+	main_fapll: main_fapll {
+		#clock-cells = <1>;
+		compatible = "ti,dm816-fapll-clock";
+		reg = <0x400 0x40>;
+		clocks = <&sys_clkin_ck &sys_clkin_ck>;
+		clock-indices = <1>, <2>, <3>, <4>, <5>,
+				<6>, <7>;
+		clock-output-names = "main_pll_clk1",
+				     "main_pll_clk2",
+				     "main_pll_clk3",
+				     "main_pll_clk4",
+				     "main_pll_clk5",
+				     "main_pll_clk6",
+				     "main_pll_clk7";
+	};
+
+	ddr_fapll: ddr_fapll {
+		#clock-cells = <1>;
+		compatible = "ti,dm816-fapll-clock";
+		reg = <0x440 0x30>;
+		clocks = <&sys_clkin_ck &sys_clkin_ck>;
+		clock-indices = <1>, <2>, <3>, <4>;
+		clock-output-names = "ddr_pll_clk1",
+				     "ddr_pll_clk2",
+				     "ddr_pll_clk3",
+				     "ddr_pll_clk4";
+	};
+
+	video_fapll: video_fapll {
+		#clock-cells = <1>;
+		compatible = "ti,dm816-fapll-clock";
+		reg = <0x470 0x30>;
+		clocks = <&sys_clkin_ck &sys_clkin_ck>;
+		clock-indices = <1>, <2>, <3>;
+		clock-output-names = "video_pll_clk1",
+				     "video_pll_clk2",
+				     "video_pll_clk3";
+	};
+
+	audio_fapll: audio_fapll {
+		#clock-cells = <1>;
+		compatible = "ti,dm816-fapll-clock";
+		reg = <0x4a0 0x30>;
+		clocks = <&main_fapll 7>, < &sys_clkin_ck>;
+		clock-indices = <1>, <2>, <3>, <4>, <5>;
+		clock-output-names = "audio_pll_clk1",
+				     "audio_pll_clk2",
+				     "audio_pll_clk3",
+				     "audio_pll_clk4",
+				     "audio_pll_clk5";
+	};
+};
+
+&scrm_clocks {
+	secure_32k_ck: secure_32k_ck {
+		#clock-cells = <0>;
+		compatible = "fixed-clock";
+		clock-frequency = <32768>;
+	};
+
+	sys_32k_ck: sys_32k_ck {
+		#clock-cells = <0>;
+		compatible = "fixed-clock";
+		clock-frequency = <32768>;
+	};
+
+	tclkin_ck: tclkin_ck {
+		#clock-cells = <0>;
+		compatible = "fixed-clock";
+		clock-frequency = <32768>;
+	};
+
+	sys_clkin_ck: sys_clkin_ck {
+		#clock-cells = <0>;
+		compatible = "fixed-clock";
+		clock-frequency = <27000000>;
+	};
+};
+
+/* 0x48180000 */
+&prcm_clocks {
+	clkout_pre_ck: clkout_pre_ck {
+		#clock-cells = <0>;
+		compatible = "ti,mux-clock";
+		clocks = <&main_fapll 5 &ddr_fapll 1 &video_fapll 1
+			  &audio_fapll 1>;
+		reg = <0x100>;
+	};
+
+	clkout_div_ck: clkout_div_ck {
+		#clock-cells = <0>;
+		compatible = "ti,divider-clock";
+		clocks = <&clkout_pre_ck>;
+		ti,bit-shift = <3>;
+		ti,max-div = <8>;
+		reg = <0x100>;
+	};
+
+	clkout_ck: clkout_ck {
+		#clock-cells = <0>;
+		compatible = "ti,gate-clock";
+		clocks = <&clkout_div_ck>;
+		ti,bit-shift = <7>;
+		reg = <0x100>;
+	};
+
+	/* CM_DPLL clocks p1795 */
+	sysclk1_ck: sysclk1_ck {
+		#clock-cells = <0>;
+		compatible = "ti,divider-clock";
+		clocks = <&main_fapll 1>;
+		ti,max-div = <7>;
+		reg = <0x0300>;
+	};
+
+	sysclk2_ck: sysclk2_ck {
+		#clock-cells = <0>;
+		compatible = "ti,divider-clock";
+		clocks = <&main_fapll 2>;
+		ti,max-div = <7>;
+		reg = <0x0304>;
+	};
+
+	sysclk3_ck: sysclk3_ck {
+		#clock-cells = <0>;
+		compatible = "ti,divider-clock";
+		clocks = <&main_fapll 3>;
+		ti,max-div = <7>;
+		reg = <0x0308>;
+	};
+
+	sysclk4_ck: sysclk4_ck {
+		#clock-cells = <0>;
+		compatible = "ti,divider-clock";
+		clocks = <&main_fapll 4>;
+		ti,max-div = <1>;
+		reg = <0x030c>;
+	};
+
+	sysclk5_ck: sysclk5_ck {
+		#clock-cells = <0>;
+		compatible = "ti,divider-clock";
+		clocks = <&sysclk4_ck>;
+		ti,max-div = <1>;
+		reg = <0x0310>;
+	};
+
+	sysclk6_ck: sysclk6_ck {
+		#clock-cells = <0>;
+		compatible = "ti,divider-clock";
+		clocks = <&main_fapll 4>;
+		ti,dividers = <2>, <4>;
+		reg = <0x0314>;
+	};
+
+	sysclk10_ck: sysclk10_ck {
+		#clock-cells = <0>;
+		compatible = "ti,divider-clock";
+		clocks = <&ddr_fapll 2>;
+		ti,max-div = <7>;
+		reg = <0x0324>;
+	};
+
+	sysclk24_ck: sysclk24_ck {
+		#clock-cells = <0>;
+		compatible = "ti,divider-clock";
+		clocks = <&main_fapll 5>;
+		ti,max-div = <7>;
+		reg = <0x03b4>;
+	};
+
+	mpu_ck: mpu_ck {
+		#clock-cells = <0>;
+		compatible = "ti,gate-clock";
+		clocks = <&sysclk2_ck>;
+		ti,bit-shift = <1>;
+                reg = <0x15dc>;
+	};
+
+	audio_pll_a_ck: audio_pll_a_ck {
+		#clock-cells = <0>;
+		compatible = "ti,divider-clock";
+		clocks = <&audio_fapll 1>;
+		ti,max-div = <7>;
+		reg = <0x035c>;
+	};
+
+	sysclk18_ck: sysclk18_ck {
+		#clock-cells = <0>;
+		compatible = "ti,mux-clock";
+		clocks = <&sys_32k_ck>, <&audio_pll_a_ck>;
+		reg = <0x0378>;
+	};
+
+	timer1_fck: timer1_fck {
+		#clock-cells = <0>;
+		compatible = "ti,mux-clock";
+		clocks = <&tclkin_ck>, <&sysclk18_ck>, <&sys_clkin_ck>;
+		reg = <0x0390>;
+	};
+
+	timer2_fck: timer2_fck {
+		#clock-cells = <0>;
+		compatible = "ti,mux-clock";
+		clocks = <&tclkin_ck>, <&sysclk18_ck>, <&sys_clkin_ck>;
+		reg = <0x0394>;
+	};
+
+	timer3_fck: timer3_fck {
+		#clock-cells = <0>;
+		compatible = "ti,mux-clock";
+		clocks = <&tclkin_ck>, <&sysclk18_ck>, <&sys_clkin_ck>;
+		reg = <0x0398>;
+	};
+
+	timer4_fck: timer4_fck {
+		#clock-cells = <0>;
+		compatible = "ti,mux-clock";
+		clocks = <&tclkin_ck>, <&sysclk18_ck>, <&sys_clkin_ck>;
+		reg = <0x039c>;
+	};
+
+	timer5_fck: timer5_fck {
+		#clock-cells = <0>;
+		compatible = "ti,mux-clock";
+		clocks = <&tclkin_ck>, <&sysclk18_ck>, <&sys_clkin_ck>;
+		reg = <0x03a0>;
+	};
+
+	timer6_fck: timer6_fck {
+		#clock-cells = <0>;
+		compatible = "ti,mux-clock";
+		clocks = <&tclkin_ck>, <&sysclk18_ck>, <&sys_clkin_ck>;
+		reg = <0x03a4>;
+	};
+
+	timer7_fck: timer7_fck {
+		#clock-cells = <0>;
+		compatible = "ti,mux-clock";
+		clocks = <&tclkin_ck>, <&sysclk18_ck>, <&sys_clkin_ck>;
+		reg = <0x03a8>;
+	};
+};
diff --git a/arch/arm/boot/dts/dm816x.dtsi b/arch/arm/boot/dts/dm816x.dtsi
index 5b5df63a21c8..7adac097a71c 100644
--- a/arch/arm/boot/dts/dm816x.dtsi
+++ b/arch/arm/boot/dts/dm816x.dtsi
@@ -384,3 +384,4 @@
 	};
 };
 
+#include "dm816x-clocks.dtsi"