Re: [PATCH v2 2/3] ARM: dts: enable clock support for Broadcom NSP

[Jon Mason <jonmason@broadcom.com>]

On Thu, Nov 19, 2015 at 03:40:04PM -0800, Ray Jui wrote:
> 
> 
> On 11/19/2015 3:05 PM, Jon Mason wrote:
> >Replace current device tree dummy clocks with real clock support for
> >Broadcom Northstar Plus SoC
> >
> >Signed-off-by: Jon Mason <jonmason@broadcom.com>
> >---
> >  arch/arm/boot/dts/bcm-nsp.dtsi | 77 +++++++++++++++++++++++++++++++++++-------
> >  1 file changed, 64 insertions(+), 13 deletions(-)
> >
> >diff --git a/arch/arm/boot/dts/bcm-nsp.dtsi b/arch/arm/boot/dts/bcm-nsp.dtsi
> >index b74438c..361c2a6 100644
> >--- a/arch/arm/boot/dts/bcm-nsp.dtsi
> >+++ b/arch/arm/boot/dts/bcm-nsp.dtsi
> >@@ -32,6 +32,7 @@
> >
> >  #include <dt-bindings/interrupt-controller/arm-gic.h>
> >  #include <dt-bindings/interrupt-controller/irq.h>
> >+#include <dt-bindings/clock/bcm-nsp.h>
> >
> >  #include "skeleton.dtsi"
> >
> >@@ -42,7 +43,7 @@
> >
> >  	mpcore {
> >  		compatible = "simple-bus";
> >-		ranges = <0x00000000 0x19020000 0x00003000>;
> >+		ranges = <0x00000000 0x19000000 0x00023000>;
> >  		#address-cells = <1>;
> >  		#size-cells = <1>;
> >
> >@@ -58,16 +59,23 @@
> >  			};
> >  		};
> >
> >+		a9pll: arm_clk@0000 {
> >+			#clock-cells = <0>;
> >+			compatible = "brcm,nsp-armpll";
> >+			clocks = <&osc>;
> >+			reg = <0x0000 0x1000>;
> >+		};
> >+
> >  		timer@0200 {
> 
> timer@20200. Or is this addressed in another patch? I completely
> lose track of these....

No, you are correct.  The names need to be updated as well with the
new offsets.  New series to follow.

Thanks,
Jon

> 
> >  			compatible = "arm,cortex-a9-global-timer";
> >-			reg = <0x0200 0x100>;
> >+			reg = <0x20200 0x100>;
> >  			interrupts = <GIC_PPI 11 IRQ_TYPE_LEVEL_HIGH>;
> >  			clocks = <&periph_clk>;
> >  		};
> >
> >  		twd-timer@0600 {
> 
> twd-timer@20600
> 
> >  			compatible = "arm,cortex-a9-twd-timer";
> >-			reg = <0x0600 0x20>;
> >+			reg = <0x20600 0x20>;
> >  			interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) |
> >  						  IRQ_TYPE_LEVEL_HIGH)>;
> >  			clocks = <&periph_clk>;
> >@@ -75,7 +83,7 @@
> >
> >  		twd-watchdog@0620 {
> 
> same here
> 
> >  			compatible = "arm,cortex-a9-twd-wdt";
> >-			reg = <0x0620 0x20>;
> >+			reg = <0x20620 0x20>;
> >  			interrupts = <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(2) |
> >  						  IRQ_TYPE_LEVEL_HIGH)>;
> >  			clocks = <&periph_clk>;
> >@@ -86,13 +94,13 @@
> >  			#interrupt-cells = <3>;
> >  			#address-cells = <0>;
> >  			interrupt-controller;
> >-			reg = <0x1000 0x1000>,
> >-			      <0x0100 0x100>;
> >+			reg = <0x21000 0x1000>,
> >+			      <0x20100 0x100>;
> >  		};
> >
> >  		L2: l2-cache {
> >  			compatible = "arm,pl310-cache";
> >-			reg = <0x2000 0x1000>;
> >+			reg = <0x22000 0x1000>;
> >  			cache-unified;
> >  			cache-level = <2>;
> >  		};
> >@@ -103,10 +111,34 @@
> >  		#size-cells = <1>;
> >  		ranges;
> >
> >-		periph_clk: periph_clk {
> >+		osc: oscillator {
> >+			#clock-cells = <0>;
> >  			compatible = "fixed-clock";
> >+			clock-frequency = <25000000>;
> >+		};
> >+
> >+		iprocmed: iprocmed {
> >+			#clock-cells = <0>;
> >+			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>;
> >-			clock-frequency = <500000000>;
> >+			compatible = "fixed-factor-clock";
> >+			clocks = <&a9pll>;
> >+			clock-div = <2>;
> >+			clock-mult = <1>;
> >  		};
> >  	};
> >
> >@@ -118,17 +150,17 @@
> >
> >  		uart0: serial@0300 {
> >  			compatible = "ns16550a";
> >-			reg = <0x0300 0x100>;
> >+			reg = <0x000300 0x100>;
> >  			interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
> >-			clock-frequency = <62499840>;
> >+			clocks = <&osc>;
> >  			status = "disabled";
> >  		};
> >
> >  		uart1: serial@0400 {
> >  			compatible = "ns16550a";
> >-			reg = <0x0400 0x100>;
> >+			reg = <0x000400 0x100>;
> >  			interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
> >-			clock-frequency = <62499840>;
> >+			clocks = <&osc>;
> >  			status = "disabled";
> >  		};
> >
> >@@ -226,5 +258,24 @@
> >  			interrupts = <GIC_SPI 89 IRQ_TYPE_NONE>;
> >  			clock-frequency = <100000>;
> >  		};
> >+
> >+		lcpll0: lcpll0@3f100 {
> >+			#clock-cells = <1>;
> >+			compatible = "brcm,nsp-lcpll0";
> >+			reg = <0x3f100 0x14>;
> >+			clocks = <&osc>;
> >+			clock-output-names = "lcpll0", "pcie_phy", "sdio",
> >+					     "ddr_phy";
> >+		};
> >+
> >+		genpll: genpll@3f140 {
> >+			#clock-cells = <1>;
> >+			compatible = "brcm,nsp-genpll";
> >+			reg = <0x3f140 0x24>;
> >+			clocks = <&osc>;
> >+			clock-output-names = "genpll", "phy", "ethernetclk",
> >+					     "usbclk", "iprocfast", "sata1",
> >+					     "sata2";
> >+		};
> >  	};
> >  };
> >