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Message-ID: <562A1070.8070505@gmail.com>
Date: Fri, 23 Oct 2015 12:48:16 +0200
From: Matthias Brugger <matthias.bgg@...il.com>
To: Erin Lo <erin.lo@...iatek.com>
Cc: Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Kumar Gala <galak@...eaurora.org>,
Russell King <linux@....linux.org.uk>,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org, srv_heupstream@...iatek.com
Subject: Re: [PATCH v3 2/2] ARM: dts: mediatek: add MT2701 basic support
On 20/10/15 08:34, Erin Lo wrote:
> This adds basic chip support for Mediatek 2701.
>
> Signed-off-by: Erin Lo <erin.lo@...iatek.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@...iatek.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@...iatek.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@...07000 {
> + compatible = "mediatek,mt2701-wdt",
> + "mediatek,mt6589-wdt";
> + reg = <0 0x10007000 0 0x100>;
> + };
> +
> + timer: timer@...08000 {
> + 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@...00100 {
> + compatible = "mediatek,mt2701-sysirq",
> + "mediatek,mt6577-sysirq";
> + interrupt-controller;
> + #interrupt-cells = <3>;
> + interrupt-parent = <&gic>;
> + reg = <0 0x10200100 0 0x1c>;
> + };
> +
> + gic: interrupt-controller@...11000 {
> + 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@...02000 {
> + 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@...03000 {
> + 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@...04000 {
> + 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@...05000 {
> + 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",
>
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