Re: [PATCH 2/3] ARM: mediatek: add UART dts for mt8127 and mt8135

[Matthias Brugger]

2014-10-22 15:12 GMT+02:00 Eddie Huang <eddie.huang@xxxxxxxxxxxx>:
> This add dts support for mt8127 and mt8135 SOC UART
>
> Signed-off-by: Eddie Huang <eddie.huang@xxxxxxxxxxxx>
> ---
>  arch/arm/boot/dts/mt8127.dtsi | 34 ++++++++++++++++++++++++++++++++++
>  arch/arm/boot/dts/mt8135.dtsi | 36 ++++++++++++++++++++++++++++++++++++
>  2 files changed, 70 insertions(+)
>
> diff --git a/arch/arm/boot/dts/mt8127.dtsi b/arch/arm/boot/dts/mt8127.dtsi
> index 25c9f69..249c218 100644
> --- a/arch/arm/boot/dts/mt8127.dtsi
> +++ b/arch/arm/boot/dts/mt8127.dtsi
> @@ -64,6 +64,12 @@
>                         clock-frequency = <32000>;
>                         #clock-cells = <0>;
>                 };
> +
> +               uart_clk: dummy26m {
> +                       compatible = "fixed-clock";
> +                       clock-frequency = <26000000>;
> +                       #clock-cells = <0>;
> +                };
>         };
>
>         soc {
> @@ -89,5 +95,33 @@
>                               <0 0x10214000 0 0x2000>,
>                               <0 0x10216000 0 0x2000>;
>                 };
> +
> +               uart0: serial@11006000 {
> +                       compatible = "mediatek,mt8127-uart","mediatek,mt6577-uart";
> +                       reg = <0 0x11002000 0 0x400>;
> +                       interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_LOW>;

As long as the interrupt polarity patches from Joe are not
merged,IRQ_TYPE_LEVEL_LOW triggers won't work as the GIC does not
support them.

> +                       clocks = <&uart_clk>;
> +               };
> +
> +               uart1: serial@11007000 {
> +                       compatible = "mediatek,mt8127-uart","mediatek,mt6577-uart";
> +                       reg = <0 0x11003000 0 0x400>;
> +                       interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_LOW>;
> +                       clocks = <&uart_clk>;
> +               };
> +
> +               uart2: serial@11008000 {
> +                       compatible = "mediatek,mt8127-uart","mediatek,mt6577-uart";
> +                       reg = <0 0x11004000 0 0x400>;
> +                       interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_LOW>;
> +                       clocks = <&uart_clk>;
> +               };
> +
> +               uart3: serial@11009000 {
> +                       compatible = "mediatek,mt8127-uart","mediatek,mt6577-uart";
> +                       reg = <0 0x11005000 0 0x400>;
> +                       interrupts = <GIC_SPI 54 IRQ_TYPE_LEVEL_LOW>;
> +                       clocks = <&uart_clk>;
> +               };
>         };
>  };
> diff --git a/arch/arm/boot/dts/mt8135.dtsi b/arch/arm/boot/dts/mt8135.dtsi
> index 90a56ad..683b761 100644
> --- a/arch/arm/boot/dts/mt8135.dtsi
> +++ b/arch/arm/boot/dts/mt8135.dtsi
> @@ -86,6 +86,13 @@
>                         clock-frequency = <32000>;
>                         #clock-cells = <0>;
>                 };
> +
> +               uart_clk: dummy26m {
> +                       compatible = "fixed-clock";
> +                       clock-frequency = <26000000>;
> +                       #clock-cells = <0>;
> +               };
> +
>         };
>
>         soc {
> @@ -111,5 +118,34 @@
>                               <0 0x10214000 0 0x2000>,
>                               <0 0x10216000 0 0x2000>;
>                 };
> +
> +               uart0: serial@11006000 {
> +                       compatible = "mediatek,mt8135-uart","mediatek,mt6577-uart";
> +                       reg = <0 0x11006000 0 0x400>;
> +                       interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_LOW>;
> +                       clocks = <&uart_clk>;
> +               };
> +
> +               uart1: serial@11007000 {
> +                       compatible = "mediatek,mt8135-uart","mediatek,mt6577-uart";
> +                       reg = <0 0x11007000 0 0x400>;
> +                       interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_LOW>;
> +                       clocks = <&uart_clk>;
> +               };
> +
> +               uart2: serial@11008000 {
> +                       compatible = "mediatek,mt8135-uart","mediatek,mt6577-uart";
> +                       reg = <0 0x11008000 0 0x400>;
> +                       interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_LOW>;
> +                       clocks = <&uart_clk>;
> +               };
> +
> +               uart3: serial@11009000 {
> +                       compatible = "mediatek,mt8135-uart","mediatek,mt6577-uart";
> +                       reg = <0 0x11009000 0 0x400>;
> +                       interrupts = <GIC_SPI 54 IRQ_TYPE_LEVEL_LOW>;
> +                       clocks = <&uart_clk>;
> +               };
> +
>         };
>  };
> --
> 1.8.1.1.dirty
>



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