Re: [PATCH v3 2/2] ARM: dts: mediatek: add MT2701 basic support

[Matthias Brugger <matthias.bgg@gmail.com>]

On 20/10/15 08:34, Erin Lo wrote:
> This adds basic chip support for Mediatek 2701.
>
> Signed-off-by: Erin Lo <erin.lo@mediatek.com>
> ---
>   arch/arm/boot/dts/Makefile        |   1 +
>   arch/arm/boot/dts/mt2701-evb.dts  |  29 ++++++++
>   arch/arm/boot/dts/mt2701.dtsi     | 146 ++++++++++++++++++++++++++++++++++++++
>   arch/arm/mach-mediatek/mediatek.c |   1 +
>   4 files changed, 177 insertions(+)
>   create mode 100644 arch/arm/boot/dts/mt2701-evb.dts
>   create mode 100644 arch/arm/boot/dts/mt2701.dtsi
>
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 233159d..aec787e 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -732,6 +732,7 @@ dtb-$(CONFIG_MACH_DOVE) += \
>   	dove-dove-db.dtb \
>   	dove-sbc-a510.dtb
>   dtb-$(CONFIG_ARCH_MEDIATEK) += \
> +	mt2701-evb.dtb \
>   	mt6580-evbp1.dtb \
>   	mt6589-aquaris5.dtb \
>   	mt6592-evb.dtb \
> diff --git a/arch/arm/boot/dts/mt2701-evb.dts b/arch/arm/boot/dts/mt2701-evb.dts
> new file mode 100644
> index 0000000..082ca88
> --- /dev/null
> +++ b/arch/arm/boot/dts/mt2701-evb.dts
> @@ -0,0 +1,29 @@
> +/*
> + * Copyright (c) 2015 MediaTek Inc.
> + * Author: Erin Lo <erin.lo@mediatek.com>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + * GNU General Public License for more details.
> + */
> +
> +/dts-v1/;
> +#include "mt2701.dtsi"
> +
> +/ {
> +	model = "MediaTek MT2701 evaluation board";
> +	compatible = "mediatek,mt2701-evb", "mediatek,mt2701";
> +
> +	memory {
> +		reg = <0 0x80000000 0 0x40000000>;
> +	};
> +};
> +
> +&uart0 {
> +	status = "okay";
> +};
> diff --git a/arch/arm/boot/dts/mt2701.dtsi b/arch/arm/boot/dts/mt2701.dtsi
> new file mode 100644
> index 0000000..69f240f
> --- /dev/null
> +++ b/arch/arm/boot/dts/mt2701.dtsi
> @@ -0,0 +1,146 @@
> +/*
> + * Copyright (c) 2015 MediaTek Inc.
> + * Author: Erin.Lo <erin.lo@mediatek.com>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + * GNU General Public License for more details.
> + */
> +
> +#include <dt-bindings/interrupt-controller/irq.h>
> +#include <dt-bindings/interrupt-controller/arm-gic.h>
> +#include "skeleton64.dtsi"
> +
> +/ {
> +	compatible = "mediatek,mt2701";
> +	interrupt-parent = <&sysirq>;
> +
> +	cpus {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		cpu@0 {
> +			device_type = "cpu";
> +			compatible = "arm,cortex-a7";
> +			reg = <0x0>;
> +		};
> +		cpu@1 {
> +			device_type = "cpu";
> +			compatible = "arm,cortex-a7";
> +			reg = <0x1>;
> +		};
> +		cpu@2 {
> +			device_type = "cpu";
> +			compatible = "arm,cortex-a7";
> +			reg = <0x2>;
> +		};
> +		cpu@3 {
> +			device_type = "cpu";
> +			compatible = "arm,cortex-a7";
> +			reg = <0x3>;
> +		};
> +	};
> +
> +	system_clk: dummy13m {
> +		compatible = "fixed-clock";
> +		clock-frequency = <13000000>;
> +		#clock-cells = <0>;
> +	};
> +
> +	rtc_clk: dummy32k {
> +		compatible = "fixed-clock";
> +		clock-frequency = <32000>;
> +		#clock-cells = <0>;
> +	};
> +
> +	uart_clk: dummy26m {
> +		compatible = "fixed-clock";
> +		clock-frequency = <26000000>;
> +		#clock-cells = <0>;
> +	};
> +
> +	timer {
> +		compatible = "arm,armv7-timer";
> +		interrupt-parent = <&gic>;
> +		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
> +			     <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
> +			     <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
> +			     <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
> +	};
> +
> +	watchdog: watchdog@10007000 {
> +		compatible = "mediatek,mt2701-wdt",
> +			     "mediatek,mt6589-wdt";
> +		reg = <0 0x10007000 0 0x100>;
> +	};
> +
> +	timer: timer@10008000 {
> +		compatible = "mediatek,mt2701-timer",
> +			     "mediatek,mt6577-timer";
> +		reg = <0x10008000 0x80>;

I suppose reg should look like this:
reg = <0 0x10008000 0 0x80>;

I fixed it and pushed the patch to v4.4-next/dts
Please let me know if this is not working, I have no hardware to test it.

> +		interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_LOW>;
> +		clocks = <&system_clk>, <&rtc_clk>;
> +		clock-names = "system-clk", "rtc-clk";
> +	};
> +
> +	sysirq: interrupt-controller@10200100 {
> +		compatible = "mediatek,mt2701-sysirq",
> +			     "mediatek,mt6577-sysirq";
> +		interrupt-controller;
> +		#interrupt-cells = <3>;
> +		interrupt-parent = <&gic>;
> +		reg = <0 0x10200100 0 0x1c>;
> +	};
> +
> +	gic: interrupt-controller@10211000 {
> +		compatible = "arm,cortex-a7-gic";
> +		interrupt-controller;
> +		#interrupt-cells = <3>;
> +		interrupt-parent = <&gic>;
> +		reg = <0 0x10211000 0 0x1000>,
> +		      <0 0x10212000 0 0x1000>,
> +		      <0 0x10214000 0 0x2000>,
> +		      <0 0x10216000 0 0x2000>;
> +	};
> +
> +	uart0: serial@11002000 {
> +		compatible = "mediatek,mt2701-uart",
> +			     "mediatek,mt6577-uart";
> +		reg = <0 0x11002000 0 0x400>;
> +		interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_LOW>;
> +		clocks = <&uart_clk>;
> +		status = "disabled";
> +	};
> +
> +	uart1: serial@11003000 {
> +		compatible = "mediatek,mt2701-uart",
> +			     "mediatek,mt6577-uart";
> +		reg = <0 0x11003000 0 0x400>;
> +		interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_LOW>;
> +		clocks = <&uart_clk>;
> +		status = "disabled";
> +	};
> +
> +	uart2: serial@11004000 {
> +		compatible = "mediatek,mt2701-uart",
> +			     "mediatek,mt6577-uart";
> +		reg = <0 0x11004000 0 0x400>;
> +		interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_LOW>;
> +		clocks = <&uart_clk>;
> +		status = "disabled";
> +	};
> +
> +	uart3: serial@11005000 {
> +		compatible = "mediatek,mt2701-uart",
> +			     "mediatek,mt6577-uart";
> +		reg = <0 0x11005000 0 0x400>;
> +		interrupts = <GIC_SPI 54 IRQ_TYPE_LEVEL_LOW>;
> +		clocks = <&uart_clk>;
> +		status = "disabled";
> +	};
> +};
> diff --git a/arch/arm/mach-mediatek/mediatek.c b/arch/arm/mach-mediatek/mediatek.c
> index a954900..1b98f7a 100644
> --- a/arch/arm/mach-mediatek/mediatek.c
> +++ b/arch/arm/mach-mediatek/mediatek.c
> @@ -18,6 +18,7 @@
>   #include <asm/mach/arch.h>
>
>   static const char * const mediatek_board_dt_compat[] = {
> +	"mediatek,mt2701",
>   	"mediatek,mt6589",
>   	"mediatek,mt6592",
>   	"mediatek,mt8127",
>