[PATCH v3 2/4] arm64: dts: exynos: add initial CMU clock nodes in ExynosAuto v920

[Sunyeal Hong]

Add cmu_top, cmu_peric0 clock nodes and
switch USI clocks instead of dummy fixed-rate-clock.

Signed-off-by: Sunyeal Hong <sunyeal.hong at samsung.com>
---
 .../arm64/boot/dts/exynos/exynosautov920.dtsi | 40 +++++++++++++------
 1 file changed, 27 insertions(+), 13 deletions(-)

diff --git a/arch/arm64/boot/dts/exynos/exynosautov920.dtsi b/arch/arm64/boot/dts/exynos/exynosautov920.dtsi
index c1c8566d74f5..54fc32074379 100644
--- a/arch/arm64/boot/dts/exynos/exynosautov920.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynosautov920.dtsi
@@ -6,6 +6,7 @@
  *
  */
 
+#include <dt-bindings/clock/samsung,exynosautov920.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/soc/samsung,exynos-usi.h>
 
@@ -38,17 +39,6 @@ xtcxo: clock {
 		clock-output-names = "oscclk";
 	};
 
-	/*
-	 * FIXME: Keep the stub clock for serial driver, until proper clock
-	 * driver is implemented.
-	 */
-	clock_usi: clock-usi {
-		compatible = "fixed-clock";
-		#clock-cells = <0>;
-		clock-frequency = <200000000>;
-		clock-output-names = "usi";
-	};
-
 	cpus: cpus {
 		#address-cells = <2>;
 		#size-cells = <0>;
@@ -182,6 +172,28 @@ chipid at 10000000 {
 			reg = <0x10000000 0x24>;
 		};
 
+		cmu_peric0: clock-controller at 10800000 {
+			compatible = "samsung,exynosautov920-cmu-peric0";
+			reg = <0x10800000 0x8000>;
+			#clock-cells = <1>;
+
+			clocks = <&xtcxo>,
+				 <&cmu_top DOUT_CLKCMU_PERIC0_NOC>,
+				 <&cmu_top DOUT_CLKCMU_PERIC0_IP>;
+			clock-names = "oscclk",
+				      "noc",
+				      "ip";
+		};
+
+		cmu_top: clock-controller at 11000000 {
+			compatible = "samsung,exynosautov920-cmu-top";
+			reg = <0x11000000 0x8000>;
+			#clock-cells = <1>;
+
+			clocks = <&xtcxo>;
+			clock-names = "oscclk";
+		};
+
 		gic: interrupt-controller at 10400000 {
 			compatible = "arm,gic-v3";
 			#interrupt-cells = <3>;
@@ -213,7 +225,8 @@ usi_0: usi at 108800c0 {
 			#address-cells = <1>;
 			#size-cells = <1>;
 			ranges;
-			clocks = <&clock_usi>, <&clock_usi>;
+			clocks = <&cmu_peric0 CLK_MOUT_PERIC0_NOC_USER>,
+				 <&cmu_peric0 CLK_DOUT_PERIC0_USI00_USI>;
 			clock-names = "pclk", "ipclk";
 			status = "disabled";
 
@@ -224,7 +237,8 @@ serial_0: serial at 10880000 {
 				interrupts = <GIC_SPI 764 IRQ_TYPE_LEVEL_HIGH>;
 				pinctrl-names = "default";
 				pinctrl-0 = <&uart0_bus>;
-				clocks = <&clock_usi>, <&clock_usi>;
+				clocks = <&cmu_peric0 CLK_MOUT_PERIC0_NOC_USER>,
+					 <&cmu_peric0 CLK_DOUT_PERIC0_USI00_USI>;
 				clock-names = "uart", "clk_uart_baud0";
 				samsung,uart-fifosize = <256>;
 				status = "disabled";
-- 
2.45.2