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Message-ID: <CABuKBeJv0S2Q4W1fqb=8BUG6AEvFsZ6sY9QXuz=CRe+qbaYzQQ@mail.gmail.com>
Date: Thu, 13 Nov 2014 17:17:48 +0100
From: Matthias Brugger <matthias.bgg@...il.com>
To: Howard Chen <ibanezchen@...il.com>
Cc: arm@...nel.org, 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>,
Olof Johansson <olof@...om.net>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v6 1/4] ARM: mediatek: Add basic support for mt6592
2014-11-12 17:07 GMT+01:00 Howard Chen <ibanezchen@...il.com>:
> * A dtsi for boards based on Mediatek MT6592 SoCs
> * Compatible string in arch/arm/mach-mediatek/mediatek.c
>
> Signed-off-by: Howard Chen <ibanezchen@...il.com>
> ---
> arch/arm/boot/dts/mt6592.dtsi | 97 +++++++++++++++++++++++++++++++++++++++
> arch/arm/mach-mediatek/mediatek.c | 1 +
> 2 files changed, 98 insertions(+)
> create mode 100644 arch/arm/boot/dts/mt6592.dtsi
>
> diff --git a/arch/arm/boot/dts/mt6592.dtsi b/arch/arm/boot/dts/mt6592.dtsi
> new file mode 100644
> index 0000000..65aa81b
> --- /dev/null
> +++ b/arch/arm/boot/dts/mt6592.dtsi
> @@ -0,0 +1,97 @@
> +/*
> + * Copyright (c) 2014 MediaTek Inc.
> + * Author: Howard Chen <ibanezchen@...il.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 "skeleton.dtsi"
Regarding a discussion I had with Joe and Arnd [0], I think we should
use skeleton64.dtsi here, right?
The datasheets states that mt6592 supports up to 8 GB.
[0] https://lkml.org/lkml/2014/11/4/192
> +
> +/ {
> + compatible = "mediatek,mt6592";
> + interrupt-parent = <&gic>;
> +
> + 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>;
> + };
> + cpu@4 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a7";
> + reg = <0x4>;
> + };
> + cpu@5 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a7";
> + reg = <0x5>;
> + };
> + cpu@6 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a7";
> + reg = <0x6>;
> + };
> + cpu@7 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a7";
> + reg = <0x7>;
> + };
> + };
> +
> + system_clk: dummy13m {
> + compatible = "fixed-clock";
> + clock-frequency = <13000000>;
> + #clock-cells = <0>;
> + };
> +
> + rtc_clk: dummy32k {
> + compatible = "fixed-clock";
> + clock-frequency = <32000>;
> + #clock-cells = <0>;
> + };
> +
> + timer: timer@...08000 {
> + compatible = "mediatek,mt6577-timer";
> + reg = <0x10008000 0x80>;
> + interrupts = <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&system_clk>, <&rtc_clk>;
> + clock-names = "system-clk", "rtc-clk";
> + };
> +
> + gic: interrupt-controller@...11000 {
> + compatible = "arm,cortex-a7-gic";
> + interrupt-controller;
> + #interrupt-cells = <3>;
> + reg = <0x10211000 0x1000>,
> + <0x10212000 0x1000>;
> + };
> +
> +};
> diff --git a/arch/arm/mach-mediatek/mediatek.c b/arch/arm/mach-mediatek/mediatek.c
> index f2acf07..88e4626 100644
> --- a/arch/arm/mach-mediatek/mediatek.c
> +++ b/arch/arm/mach-mediatek/mediatek.c
> @@ -19,6 +19,7 @@
>
> static const char * const mediatek_board_dt_compat[] = {
> "mediatek,mt6589",
> + "mediatek,mt6592",
> NULL,
> };
>
> --
> 1.9.1
>
--
motzblog.wordpress.com
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