openwrt-archive/target/linux/bcm53xx/patches-4.4/031-ARM-dts-enable-clock-support-for-BCM5301X.patch

From cdc36b22f0e4b8badf3db14395f0aa44dcbce4b3 Mon Sep 17 00:00:00 2001
From: Jon Mason <jonmason@broadcom.com>
Date: Fri, 20 Nov 2015 10:17:18 -0500
Subject: [PATCH] ARM: dts: enable clock support for BCM5301X

Replace current device tree dummy clocks with real clock support for
Broadcom Northstar SoCs.

Signed-off-by: Jon Mason <jonmason@broadcom.com>
Reviewed-by: Ray Jui <rjui@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 arch/arm/boot/dts/bcm5301x.dtsi | 92 +++++++++++++++++++++++++++++++----------
 1 file changed, 71 insertions(+), 21 deletions(-)

--- a/arch/arm/boot/dts/bcm5301x.dtsi
+++ b/arch/arm/boot/dts/bcm5301x.dtsi
@@ -8,6 +8,7 @@
  * Licensed under the GNU/GPL. See COPYING for details.
  */
 
+#include <dt-bindings/clock/bcm-nsp.h>
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/interrupt-controller/irq.h>
@@ -27,7 +28,7 @@
 			compatible = "ns16550";
 			reg = <0x0300 0x100>;
 			interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
-			clock-frequency = <100000000>;
+			clocks = <&iprocslow>;
 			status = "disabled";
 		};
 
@@ -35,48 +36,55 @@
 			compatible = "ns16550";
 			reg = <0x0400 0x100>;
 			interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
-			clock-frequency = <100000000>;
+			clocks = <&iprocslow>;
 			status = "disabled";
 		};
 	};
 
 	mpcore {
 		compatible = "simple-bus";
-		ranges = <0x00000000 0x19020000 0x00003000>;
+		ranges = <0x00000000 0x19000000 0x00023000>;
 		#address-cells = <1>;
 		#size-cells = <1>;
 
-		scu@0000 {
+		a9pll: arm_clk@00000 {
+			#clock-cells = <0>;
+			compatible = "brcm,nsp-armpll";
+			clocks = <&osc>;
+			reg = <0x00000 0x1000>;
+		};
+
+		scu@20000 {
 			compatible = "arm,cortex-a9-scu";
-			reg = <0x0000 0x100>;
+			reg = <0x20000 0x100>;
 		};
 
-		timer@0200 {
+		timer@20200 {
 			compatible = "arm,cortex-a9-global-timer";
-			reg = <0x0200 0x100>;
+			reg = <0x20200 0x100>;
 			interrupts = <GIC_PPI 11 IRQ_TYPE_LEVEL_HIGH>;
-			clocks = <&clk_periph>;
+			clocks = <&periph_clk>;
 		};
 
-		local-timer@0600 {
+		local-timer@20600 {
 			compatible = "arm,cortex-a9-twd-timer";
-			reg = <0x0600 0x100>;
+			reg = <0x20600 0x100>;
 			interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_HIGH>;
-			clocks = <&clk_periph>;
+			clocks = <&periph_clk>;
 		};
 
-		gic: interrupt-controller@1000 {
+		gic: interrupt-controller@21000 {
 			compatible = "arm,cortex-a9-gic";
 			#interrupt-cells = <3>;
 			#address-cells = <0>;
 			interrupt-controller;
-			reg = <0x1000 0x1000>,
-			      <0x0100 0x100>;
+			reg = <0x21000 0x1000>,
+			      <0x20100 0x100>;
 		};
 
-		L2: cache-controller@2000 {
+		L2: cache-controller@22000 {
 			compatible = "arm,pl310-cache";
-			reg = <0x2000 0x1000>;
+			reg = <0x22000 0x1000>;
 			cache-unified;
 			arm,shared-override;
 			prefetch-data = <1>;
@@ -94,14 +102,37 @@
 
 	clocks {
 		#address-cells = <1>;
-		#size-cells = <0>;
+		#size-cells = <1>;
+		ranges;
 
-		/* As long as we do not have a real clock driver us this
-		 * fixed clock */
-		clk_periph: periph {
+		osc: oscillator {
+			#clock-cells = <0>;
 			compatible = "fixed-clock";
+			clock-frequency = <25000000>;
+		};
+
+		iprocmed: iprocmed {
 			#clock-cells = <0>;
-			clock-frequency = <400000000>;
+			compatible = "fixed-factor-clock";
+			clocks = <&genpll BCM_NSP_GENPLL_IPROCFAST_CLK>;
+			clock-div = <2>;
+			clock-mult = <1>;
+		};
+
+		iprocslow: iprocslow {
+			#clock-cells = <0>;
+			compatible = "fixed-factor-clock";
+			clocks = <&genpll BCM_NSP_GENPLL_IPROCFAST_CLK>;
+			clock-div = <4>;
+			clock-mult = <1>;
+		};
+
+		periph_clk: periph_clk {
+			#clock-cells = <0>;
+			compatible = "fixed-factor-clock";
+			clocks = <&a9pll>;
+			clock-div = <2>;
+			clock-mult = <1>;
 		};
 	};
 
@@ -178,6 +209,25 @@
 		};
 	};
 
+	lcpll0: lcpll0@1800c100 {
+		#clock-cells = <1>;
+		compatible = "brcm,nsp-lcpll0";
+		reg = <0x1800c100 0x14>;
+		clocks = <&osc>;
+		clock-output-names = "lcpll0", "pcie_phy", "sdio",
+				     "ddr_phy";
+	};
+
+	genpll: genpll@1800c140 {
+		#clock-cells = <1>;
+		compatible = "brcm,nsp-genpll";
+		reg = <0x1800c140 0x24>;
+		clocks = <&osc>;
+		clock-output-names = "genpll", "phy", "ethernetclk",
+				     "usbclk", "iprocfast", "sata1",
+				     "sata2";
+	};
+
 	nand: nand@18028000 {
 		compatible = "brcm,nand-iproc", "brcm,brcmnand-v6.1", "brcm,brcmnand";
 		reg = <0x18028000 0x600>, <0x1811a408 0x600>, <0x18028f00 0x20>;