[PATCH 3/4] arm: add basic support for Mediatek MT6589 boards
Matthias Brugger
matthias.bgg at gmail.com
Wed Apr 9 12:45:35 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/vendor-prefixes.txt | 1 +
arch/arm/Kconfig | 2 +
arch/arm/Makefile | 1 +
arch/arm/boot/dts/mtk6589.dtsi | 105 ++++++++++++++++++++
arch/arm/mach-mediatek/Kconfig | 14 +++
arch/arm/mach-mediatek/Makefile | 1 +
arch/arm/mach-mediatek/mediatek.c | 40 ++++++++
7 files changed, 164 insertions(+)
create mode 100644 arch/arm/boot/dts/mtk6589.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/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 0f01c9b..af48801 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -67,6 +67,7 @@ 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 5db05f6a..04d46ec 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -995,6 +995,8 @@ 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/mtk6589.dtsi b/arch/arm/boot/dts/mtk6589.dtsi
new file mode 100644
index 0000000..6dbb74f
--- /dev/null
+++ b/arch/arm/boot/dts/mtk6589.dtsi
@@ -0,0 +1,105 @@
+/*
+ * 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";
+ next-level-cache = <&L2>;
+ reg = <0x0>;
+ };
+ cpu at 1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a7";
+ next-level-cache = <&L2>;
+ reg = <0x1>;
+ };
+ cpu at 2 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a7";
+ next-level-cache = <&L2>;
+ reg = <0x2>;
+ };
+ cpu at 3 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a7";
+ next-level-cache = <&L2>;
+ reg = <0x3>;
+ };
+
+ };
+
+ clocks {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ system_clk: system_clk {
+ compatible = "fixed-clock";
+ clock-frequency = <13000000>;
+ #clock-cells = <0>;
+ clock-output-names = "system_clk";
+ };
+
+ rtc_clk: rtc_clk {
+ compatible = "fixed-clock";
+ clock-frequency = <32000>;
+ #clock-cells = <0>;
+ clock-output-names = "rtc_clk";
+ };
+ };
+
+ 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>;
+ };
+
+ L2: l2-cache-controller at 1020e000 {
+ compatible = "arm,pl310-cache";
+ reg = <0x1020e000 0x1000>;
+ cache-unified;
+ cache-level = <2>;
+ };
+
+ timer: timer at 10008000 {
+ compatible = "mediatek,mtk6589-timer";
+ reg = <0x10008000 0x80>;
+ interrupts = <GIC_SPI 113 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&system_clk>, <&rtc_clk>;
+ clock-names = "sys_clk", "rtc_clk";
+ };
+ };
+};
diff --git a/arch/arm/mach-mediatek/Kconfig b/arch/arm/mach-mediatek/Kconfig
new file mode 100644
index 0000000..c0139ca
--- /dev/null
+++ b/arch/arm/mach-mediatek/Kconfig
@@ -0,0 +1,14 @@
+config ARCH_MEDIATEK
+ bool "Mediatek MT6589 SoC" if ARCH_MULTI_V7
+ select ARCH_REQUIRE_GPIOLIB
+ select ARM_GIC
+ select CACHE_L2X0
+ select HAVE_ARM_TWD if LOCAL_TIMERS
+ select HAVE_SMP
+ select LOCAL_TIMERS if SMP
+ select COMMON_CLK
+ select GENERIC_CLOCKEVENTS
+ select MTK_TIMER
+ select CLKSRC_MMIO
+ 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..f630403
--- /dev/null
+++ b/arch/arm/mach-mediatek/mediatek.c
@@ -0,0 +1,40 @@
+/*
+ * 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>
+#include <asm/hardware/cache-l2x0.h>
+
+static void __init mediatek_dt_init(void)
+{
+ l2x0_of_init(0, ~0);
+ 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
--
1.7.9.5
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