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Date: Mon, 25 Nov 2013 12:01:48 +0530
From: Kishon Vijay Abraham I <kishon@...com>
To: Yuvaraj Kumar C D <yuvaraj.cd@...il.com>, <kgene.kim@...sung.com>,
<linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<devicetree@...r.kernel.org>, <linux-doc@...r.kernel.org>
CC: <grant.likely@...aro.org>, <rob.herring@...xeda.com>,
<swarren@...dotorg.org>, <mark.rutland@....com>,
<sachin.kamat@...aro.org>, <b.zolnierkie@...sung.com>,
<jg1.han@...sung.com>, <t.figa@...sung.com>,
<christoffer.dall@...aro.org>, <aditya.ps@...sung.com>,
Yuvaraj Kumar C D <yuvaraj.cd@...sung.com>
Subject: Re: [PATCH V2 2/2] ARM: dts: Enable ahci sata and sata phy
Hi,
On Monday 11 November 2013 02:02 PM, Yuvaraj Kumar C D wrote:
> This patch adds dt entry for ahci sata controller and its
> corresponding phy controller.phy node has been added w.r.t
> new generic phy framework.
>
> Changes since V1:
> 1.Minor changes to node name convention
> 2.Updated binding document.
>
> Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@...sung.com>
> ---
> .../devicetree/bindings/ata/exynos-sata-phy.txt | 19 +++++++++++++-----
> .../devicetree/bindings/ata/exynos-sata.txt | 17 +++++++++++-----
> arch/arm/boot/dts/exynos5250-arndale.dts | 9 ++++++++-
> arch/arm/boot/dts/exynos5250-smdk5250.dts | 8 ++------
> arch/arm/boot/dts/exynos5250.dtsi | 21 ++++++++++++++++----
> 5 files changed, 53 insertions(+), 21 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/ata/exynos-sata-phy.txt b/Documentation/devicetree/bindings/ata/exynos-sata-phy.txt
> index 37824fa..a679e17 100644
> --- a/Documentation/devicetree/bindings/ata/exynos-sata-phy.txt
> +++ b/Documentation/devicetree/bindings/ata/exynos-sata-phy.txt
> @@ -4,11 +4,20 @@ SATA PHY nodes are defined to describe on-chip SATA Physical layer controllers.
> Each SATA PHY controller should have its own node.
>
> Required properties:
> -- compatible : compatible list, contains "samsung,exynos5-sata-phy"
> +- compatible : compatible list, contains "samsung,exynos5250-sata-phy"
What if someone is already using samsung,exynos5-sata-phy? You can mark the old
one as deprecated and add the new compatible string.
> - reg : <registers mapping>
>
> Example:
> - sata@...07000 {
> - compatible = "samsung,exynos5-sata-phy";
> - reg = <0xffe07000 0x1000>;
> - };
> + sata_phy: sata-phy@...70000 {
> + compatible = "samsung,exynos5250-sata-phy";
> + reg = <0x12170000 0x1ff>;
> + clocks = <&clock 287>;
> + clock-names = "sata_phyctrl";
> + #phy-cells = <0>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges;
> + sataphy-pmu {
> + reg = <0x10040724 0x4>;
> + };
alignment problem..
> + };
> diff --git a/Documentation/devicetree/bindings/ata/exynos-sata.txt b/Documentation/devicetree/bindings/ata/exynos-sata.txt
> index 0849f10..8ec7327 100644
> --- a/Documentation/devicetree/bindings/ata/exynos-sata.txt
> +++ b/Documentation/devicetree/bindings/ata/exynos-sata.txt
> @@ -8,10 +8,17 @@ Required properties:
> - interrupts : <interrupt mapping for SATA IRQ>
> - reg : <registers mapping>
> - samsung,sata-freq : <frequency in MHz>
> +- phys : as mentioned in phy-bindings.txt
> +- phy-names : as mentioned in phy-bindings.txt
>
> Example:
> - sata@...08000 {
> - compatible = "samsung,exynos5-sata";
> - reg = <0xffe08000 0x1000>;
> - interrupts = <115>;
> - };
> + sata@...F0000 {
use lower case here..
> + compatible = "snps,dwc-ahci";
> + samsung,sata-freq = <66>;
> + reg = <0x122F0000 0x1ff>;
here too..
> + interrupts = <0 115 0>;
> + clocks = <&clock 277>, <&clock 143>;
> + clock-names = "sata", "sclk_sata";
> + phys = <&sata_phy>;
> + phy-names = "sata-phy";
> + };
> diff --git a/arch/arm/boot/dts/exynos5250-arndale.dts b/arch/arm/boot/dts/exynos5250-arndale.dts
> index b77a37e..434e4f3 100644
> --- a/arch/arm/boot/dts/exynos5250-arndale.dts
> +++ b/arch/arm/boot/dts/exynos5250-arndale.dts
> @@ -381,7 +381,14 @@
> };
>
> i2c@...D0000 {
> - status = "disabled";
> + samsung,i2c-sda-delay = <100>;
> + samsung,i2c-max-bus-freq = <40000>;
> + samsung,i2c-slave-addr = <0x38>;
> +
> + sata-phy {
> + compatible = "sata-phy-i2c";
Do you have documentation for this compatible string?
> + reg = <0x38>;
> + };
> };
>
> mmc_0: mmc@...00000 {
> diff --git a/arch/arm/boot/dts/exynos5250-smdk5250.dts b/arch/arm/boot/dts/exynos5250-smdk5250.dts
> index 13746df..eeeeef9 100644
> --- a/arch/arm/boot/dts/exynos5250-smdk5250.dts
> +++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts
> @@ -90,16 +90,12 @@
> samsung,i2c-max-bus-freq = <40000>;
> samsung,i2c-slave-addr = <0x38>;
>
> - sata-phy {
> - compatible = "samsung,sata-phy";
> + sata-phy@38 {
> + compatible = "sata-phy-i2c";
> reg = <0x38>;
> };
> };
>
> - sata@...F0000 {
> - samsung,sata-freq = <66>;
> - };
> -
> i2c@...80000 {
> samsung,i2c-sda-delay = <100>;
> samsung,i2c-max-bus-freq = <66000>;
> diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
> index 80b5df5..d24db31 100644
> --- a/arch/arm/boot/dts/exynos5250.dtsi
> +++ b/arch/arm/boot/dts/exynos5250.dtsi
> @@ -46,6 +46,7 @@
> i2c6 = &i2c_6;
> i2c7 = &i2c_7;
> i2c8 = &i2c_8;
> + i2c9 = &i2c_9;
> pinctrl0 = &pinctrl_0;
> pinctrl1 = &pinctrl_1;
> pinctrl2 = &pinctrl_2;
> @@ -216,16 +217,28 @@
> };
>
> sata@...F0000 {
> - compatible = "samsung,exynos5-sata-ahci";
> + compatible = "snps,dwc-ahci";
> + samsung,sata-freq = <66>;
> reg = <0x122F0000 0x1ff>;
> interrupts = <0 115 0>;
> clocks = <&clock 277>, <&clock 143>;
> clock-names = "sata", "sclk_sata";
> + phys = <&sata_phy>;
> + phy-names = "sata-phy";
> };
>
> - sata-phy@...70000 {
> - compatible = "samsung,exynos5-sata-phy";
> + sata_phy: sata-phy@...70000 {
> + compatible = "samsung,exynos5250-sata-phy";
> reg = <0x12170000 0x1ff>;
> + clocks = <&clock 287>;
> + clock-names = "sata_phyctrl";
> + #phy-cells = <0>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges;
> + sataphy-pmu {
> + reg = <0x10040724 0x4>;
> + };
alignment problem here..
Thanks
Kishon
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