[PATCH v2 3/4] arm: add basic support for Mediatek MT6589 boards
Matthias Brugger
matthias.bgg at gmail.com
Sat May 10 18:41:02 PDT 2014
This adds a generic devicetree board file and a dtsi for boards
based on the MT6589 SoCs from Mediatek.
Apart from the generic parts (gic, clocks) the only component
currently supported are the timers.
Signed-off-by: Matthias Brugger <matthias.bgg at gmail.com>
---
.../devicetree/bindings/arm/mediatek-mt65xx.txt | 8 ++
.../devicetree/bindings/vendor-prefixes.txt | 1 +
arch/arm/Kconfig | 2 +
arch/arm/Makefile | 1 +
arch/arm/boot/dts/mt6589.dtsi | 93 ++++++++++++++++++++++
arch/arm/mach-mediatek/Kconfig | 6 ++
arch/arm/mach-mediatek/Makefile | 1 +
arch/arm/mach-mediatek/mediatek.c | 38 +++++++++
8 files changed, 150 insertions(+)
create mode 100644 Documentation/devicetree/bindings/arm/mediatek-mt65xx.txt
create mode 100644 arch/arm/boot/dts/mt6589.dtsi
create mode 100644 arch/arm/mach-mediatek/Kconfig
create mode 100644 arch/arm/mach-mediatek/Makefile
create mode 100644 arch/arm/mach-mediatek/mediatek.c
diff --git a/Documentation/devicetree/bindings/arm/mediatek-mt65xx.txt b/Documentation/devicetree/bindings/arm/mediatek-mt65xx.txt
new file mode 100644
index 0000000..d6ac71f
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/mediatek-mt65xx.txt
@@ -0,0 +1,8 @@
+Mediatek MT6589 Platforms Device Tree Bindings
+
+Boards with a SoC of the Mediatek MT6589 shall have the following property:
+
+Required root node property:
+
+compatible: must contain "mediatek,mt6589"
+
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index abc3080..73f9e4c 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -75,6 +75,7 @@ linux Linux-specific binding
lsi LSI Corp. (LSI Logic)
marvell Marvell Technology Group Ltd.
maxim Maxim Integrated Products
+mediatek MediaTek Inc.
microchip Microchip Technology Inc.
mosaixtech Mosaix Technologies, Inc.
moxa Moxa
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index db3c541..0fc8acd 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -997,6 +997,8 @@ source "arch/arm/mach-mv78xx0/Kconfig"
source "arch/arm/mach-imx/Kconfig"
+source "arch/arm/mach-mediatek/Kconfig"
+
source "arch/arm/mach-mxs/Kconfig"
source "arch/arm/mach-netx/Kconfig"
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 41c1931..8ce9774 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -170,6 +170,7 @@ machine-$(CONFIG_ARCH_MSM) += msm
machine-$(CONFIG_ARCH_MV78XX0) += mv78xx0
machine-$(CONFIG_ARCH_MVEBU) += mvebu
machine-$(CONFIG_ARCH_MXC) += imx
+machine-$(CONFIG_ARCH_MEDIATEK) += mediatek
machine-$(CONFIG_ARCH_MXS) += mxs
machine-$(CONFIG_ARCH_NETX) += netx
machine-$(CONFIG_ARCH_NOMADIK) += nomadik
diff --git a/arch/arm/boot/dts/mt6589.dtsi b/arch/arm/boot/dts/mt6589.dtsi
new file mode 100644
index 0000000..2af140d
--- /dev/null
+++ b/arch/arm/boot/dts/mt6589.dtsi
@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2014 MundoReader S.L.
+ * Author: Matthias Brugger <matthias.bgg at gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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"
+
+/ {
+ compatible = "mediatek,mt6589";
+ interrupt-parent = <&gic>;
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu at 0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a7";
+ reg = <0x0>;
+ };
+ cpu at 1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a7";
+ reg = <0x1>;
+ };
+ cpu at 2 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a7";
+ reg = <0x2>;
+ };
+ cpu at 3 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a7";
+ reg = <0x3>;
+ };
+
+ };
+
+ clocks {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ dummy13m: dummy13m {
+ compatible = "fixed-clock";
+ clock-frequency = <13000000>;
+ #clock-cells = <0>;
+ };
+
+ dummy32k: dummy32k {
+ compatible = "fixed-clock";
+ clock-frequency = <32000>;
+ #clock-cells = <0>;
+ };
+ };
+
+ soc {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "simple-bus";
+ clock-ranges;
+ ranges;
+
+ gic: interrupt-controller at 10212000 {
+ compatible = "arm,cortex-a9-gic";
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ reg = <0x10211000 0x1000>,
+ <0x10212000 0x1000>,
+ <0x10214000 0x2000>,
+ <0x10216000 0x2000>;
+ };
+
+ timer: timer at 10008000 {
+ compatible = "mediatek,mtk6589-timer";
+ reg = <0x10008000 0x80>;
+ interrupts = <GIC_SPI 113 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&dummy13m>, <&dummy32k>;
+ };
+ };
+};
diff --git a/arch/arm/mach-mediatek/Kconfig b/arch/arm/mach-mediatek/Kconfig
new file mode 100644
index 0000000..2c043a2
--- /dev/null
+++ b/arch/arm/mach-mediatek/Kconfig
@@ -0,0 +1,6 @@
+config ARCH_MEDIATEK
+ bool "Mediatek MT6589 SoC" if ARCH_MULTI_V7
+ select ARM_GIC
+ select MTK_TIMER
+ help
+ Support for Mediatek Cortex-A7 Quad-Core-SoC MT6589.
diff --git a/arch/arm/mach-mediatek/Makefile b/arch/arm/mach-mediatek/Makefile
new file mode 100644
index 0000000..43e619f
--- /dev/null
+++ b/arch/arm/mach-mediatek/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_ARCH_MEDIATEK) += mediatek.o
diff --git a/arch/arm/mach-mediatek/mediatek.c b/arch/arm/mach-mediatek/mediatek.c
new file mode 100644
index 0000000..0487fc7
--- /dev/null
+++ b/arch/arm/mach-mediatek/mediatek.c
@@ -0,0 +1,38 @@
+/*
+ * Device Tree support for Mediatek SoCs
+ *
+ * Copyright (c) 2014 MundoReader S.L.
+ * Author: Matthias Brugger <matthias.bgg at gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/of_platform.h>
+#include <linux/irqchip.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+static void __init mediatek_dt_init(void)
+{
+ of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+}
+
+static const char * const mediatek_board_dt_compat[] = {
+ "mediatek,mt6589",
+ NULL,
+};
+
+DT_MACHINE_START(MEDIATEK_DT, "Mediatek Cortex-A7 (Device Tree)")
+ .init_machine = mediatek_dt_init,
+ .dt_compat = mediatek_board_dt_compat,
+MACHINE_END
--
1.8.1.2
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