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Message-ID: <20160330125551.GI28207@tiger>
Date: Wed, 30 Mar 2016 20:55:51 +0800
From: Shawn Guo <shawnguo@...nel.org>
To: Alison Wang <b18965@...escale.com>
Cc: scott.wood@....com, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org, Alison Wang <alison.wang@....com>
Subject: Re: [PATCH] ARM: dts: ls102xa: Use new clock binding
On Wed, Mar 02, 2016 at 02:11:22PM +0800, Alison Wang wrote:
> According to the current clock driver for Freescale QorIQ platform, new
> clock binding will be used for LS1021A.
Is this a simple clock binding updating/replacing, or does it actually
include some clock assignment changes? I expect that it should be just
like the following direct replacement.
<&cluster1_clk> --> <&clockgen 1 0>
<&platform_clk 1> --> <&clockgen 4 1>
<&platform_clk 0> --> <&clockgen 4 0>
But the update to sata and watchdog nodes seem to be not the case.
Shawn
>
> Signed-off-by: Alison Wang <alison.wang@....com>
> ---
> arch/arm/boot/dts/ls1021a.dtsi | 97 +++++++++++++++++-------------------------
> 1 file changed, 40 insertions(+), 57 deletions(-)
>
> diff --git a/arch/arm/boot/dts/ls1021a.dtsi b/arch/arm/boot/dts/ls1021a.dtsi
> index 726372d..5483728 100644
> --- a/arch/arm/boot/dts/ls1021a.dtsi
> +++ b/arch/arm/boot/dts/ls1021a.dtsi
> @@ -74,14 +74,14 @@
> compatible = "arm,cortex-a7";
> device_type = "cpu";
> reg = <0xf00>;
> - clocks = <&cluster1_clk>;
> + clocks = <&clockgen 1 0>;
> };
>
> cpu@f01 {
> compatible = "arm,cortex-a7";
> device_type = "cpu";
> reg = <0xf01>;
> - clocks = <&cluster1_clk>;
> + clocks = <&clockgen 1 0>;
> };
> };
>
> @@ -99,6 +99,20 @@
> <GIC_SPI 139 IRQ_TYPE_LEVEL_HIGH>;
> };
>
> + sysclk: sysclk {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <100000000>;
> + clock-output-names = "sysclk";
> + };
> +
> + clk32k: clk32k {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <32768>;
> + clock-output-names = "clk32k";
> + };
> +
> soc {
> compatible = "simple-bus";
> #address-cells = <2>;
> @@ -149,7 +163,7 @@
> <0x0 0x20220520 0x0 0x4>;
> reg-names = "ahci", "sata-ecc";
> interrupts = <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
> - clocks = <&platform_clk 1>;
> + clocks = <&clockgen 4 0>;
> dma-coherent;
> status = "disabled";
> };
> @@ -200,41 +214,10 @@
> };
>
> clockgen: clocking@...1000 {
> - #address-cells = <1>;
> - #size-cells = <1>;
> - ranges = <0x0 0x0 0x1ee1000 0x10000>;
> -
> - sysclk: sysclk {
> - compatible = "fixed-clock";
> - #clock-cells = <0>;
> - clock-output-names = "sysclk";
> - };
> -
> - cga_pll1: pll@800 {
> - compatible = "fsl,qoriq-core-pll-2.0";
> - #clock-cells = <1>;
> - reg = <0x800 0x10>;
> - clocks = <&sysclk>;
> - clock-output-names = "cga-pll1", "cga-pll1-div2",
> - "cga-pll1-div4";
> - };
> -
> - platform_clk: pll@c00 {
> - compatible = "fsl,qoriq-core-pll-2.0";
> - #clock-cells = <1>;
> - reg = <0xc00 0x10>;
> - clocks = <&sysclk>;
> - clock-output-names = "platform-clk", "platform-clk-div2";
> - };
> -
> - cluster1_clk: clk0c0@0 {
> - compatible = "fsl,qoriq-core-mux-2.0";
> - #clock-cells = <0>;
> - reg = <0x0 0x10>;
> - clock-names = "pll1cga", "pll1cga-div2", "pll1cga-div4";
> - clocks = <&cga_pll1 0>, <&cga_pll1 1>, <&cga_pll1 2>;
> - clock-output-names = "cluster1-clk";
> - };
> + compatible = "fsl,ls1021a-clockgen";
> + reg = <0x0 0x1ee1000 0x0 0x1000>;
> + #clock-cells = <2>;
> + clocks = <&sysclk>;
> };
>
> dspi0: dspi@...0000 {
> @@ -244,7 +227,7 @@
> reg = <0x0 0x2100000 0x0 0x10000>;
> interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
> clock-names = "dspi";
> - clocks = <&platform_clk 1>;
> + clocks = <&clockgen 4 1>;
> spi-num-chipselects = <5>;
> big-endian;
> status = "disabled";
> @@ -257,7 +240,7 @@
> reg = <0x0 0x2110000 0x0 0x10000>;
> interrupts = <GIC_SPI 97 IRQ_TYPE_LEVEL_HIGH>;
> clock-names = "dspi";
> - clocks = <&platform_clk 1>;
> + clocks = <&clockgen 4 1>;
> spi-num-chipselects = <5>;
> big-endian;
> status = "disabled";
> @@ -270,7 +253,7 @@
> reg = <0x0 0x2180000 0x0 0x10000>;
> interrupts = <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>;
> clock-names = "i2c";
> - clocks = <&platform_clk 1>;
> + clocks = <&clockgen 4 1>;
> status = "disabled";
> };
>
> @@ -281,7 +264,7 @@
> reg = <0x0 0x2190000 0x0 0x10000>;
> interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
> clock-names = "i2c";
> - clocks = <&platform_clk 1>;
> + clocks = <&clockgen 4 1>;
> status = "disabled";
> };
>
> @@ -292,7 +275,7 @@
> reg = <0x0 0x21a0000 0x0 0x10000>;
> interrupts = <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>;
> clock-names = "i2c";
> - clocks = <&platform_clk 1>;
> + clocks = <&clockgen 4 1>;
> status = "disabled";
> };
>
> @@ -336,7 +319,7 @@
> compatible = "fsl,ls1021a-lpuart";
> reg = <0x0 0x2950000 0x0 0x1000>;
> interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
> - clocks = <&sysclk>;
> + clocks = <&clockgen 4 1>;
> clock-names = "ipg";
> status = "disabled";
> };
> @@ -345,7 +328,7 @@
> compatible = "fsl,ls1021a-lpuart";
> reg = <0x0 0x2960000 0x0 0x1000>;
> interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
> - clocks = <&platform_clk 1>;
> + clocks = <&clockgen 4 1>;
> clock-names = "ipg";
> status = "disabled";
> };
> @@ -354,7 +337,7 @@
> compatible = "fsl,ls1021a-lpuart";
> reg = <0x0 0x2970000 0x0 0x1000>;
> interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
> - clocks = <&platform_clk 1>;
> + clocks = <&clockgen 4 1>;
> clock-names = "ipg";
> status = "disabled";
> };
> @@ -363,7 +346,7 @@
> compatible = "fsl,ls1021a-lpuart";
> reg = <0x0 0x2980000 0x0 0x1000>;
> interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
> - clocks = <&platform_clk 1>;
> + clocks = <&clockgen 4 1>;
> clock-names = "ipg";
> status = "disabled";
> };
> @@ -372,7 +355,7 @@
> compatible = "fsl,ls1021a-lpuart";
> reg = <0x0 0x2990000 0x0 0x1000>;
> interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
> - clocks = <&platform_clk 1>;
> + clocks = <&clockgen 4 1>;
> clock-names = "ipg";
> status = "disabled";
> };
> @@ -381,7 +364,7 @@
> compatible = "fsl,ls1021a-lpuart";
> reg = <0x0 0x29a0000 0x0 0x1000>;
> interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
> - clocks = <&platform_clk 1>;
> + clocks = <&clockgen 4 1>;
> clock-names = "ipg";
> status = "disabled";
> };
> @@ -390,7 +373,7 @@
> compatible = "fsl,imx21-wdt";
> reg = <0x0 0x2ad0000 0x0 0x10000>;
> interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
> - clocks = <&platform_clk 1>;
> + clocks = <&clk32k>;
> clock-names = "wdog-en";
> big-endian;
> };
> @@ -400,8 +383,8 @@
> compatible = "fsl,vf610-sai";
> reg = <0x0 0x2b50000 0x0 0x10000>;
> interrupts = <GIC_SPI 132 IRQ_TYPE_LEVEL_HIGH>;
> - clocks = <&platform_clk 1>, <&platform_clk 1>,
> - <&platform_clk 1>, <&platform_clk 1>;
> + clocks = <&clockgen 4 1>, <&clockgen 4 1>,
> + <&clockgen 4 1>, <&clockgen 4 1>;
> clock-names = "bus", "mclk1", "mclk2", "mclk3";
> dma-names = "tx", "rx";
> dmas = <&edma0 1 47>,
> @@ -414,8 +397,8 @@
> compatible = "fsl,vf610-sai";
> reg = <0x0 0x2b60000 0x0 0x10000>;
> interrupts = <GIC_SPI 133 IRQ_TYPE_LEVEL_HIGH>;
> - clocks = <&platform_clk 1>, <&platform_clk 1>,
> - <&platform_clk 1>, <&platform_clk 1>;
> + clocks = <&clockgen 4 1>, <&clockgen 4 1>,
> + <&clockgen 4 1>, <&clockgen 4 1>;
> clock-names = "bus", "mclk1", "mclk2", "mclk3";
> dma-names = "tx", "rx";
> dmas = <&edma0 1 45>,
> @@ -435,15 +418,15 @@
> dma-channels = <32>;
> big-endian;
> clock-names = "dmamux0", "dmamux1";
> - clocks = <&platform_clk 1>,
> - <&platform_clk 1>;
> + clocks = <&clockgen 4 1>,
> + <&clockgen 4 1>;
> };
>
> dcu: dcu@...0000 {
> compatible = "fsl,ls1021a-dcu";
> reg = <0x0 0x2ce0000 0x0 0x10000>;
> interrupts = <GIC_SPI 172 IRQ_TYPE_LEVEL_HIGH>;
> - clocks = <&platform_clk 0>;
> + clocks = <&clockgen 4 0>;
> clock-names = "dcu";
> big-endian;
> status = "disabled";
> --
> 2.1.0.27.g96db324
>
>
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