arm: add basic support for Mediatek MT6589 boards

This adds a generic devicetree board file and a dtsi for boards
based on 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@gmail.com>

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 87b63fde06d7e02d662d3c6d95dce148e3cf7a8f..845c12de257b0d23152b7f59cafed12b934bb3b7 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -978,6 +978,8 @@ 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 6721fab13734daca10fd1d4050c196c7004fab84..1895de2ecc3cb2626574bab8791538b91e5e7535 100644 (file)
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -172,6 +172,7 @@ 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 (file)
index 0000000..d0297a0
--- /dev/null
+++ b/arch/arm/boot/dts/mt6589.dtsi
@@ -0,0 +1,94 @@
+/*
+ * Copyright (c) 2014 MundoReader S.L.
+ * Author: Matthias Brugger <matthias.bgg@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@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>;
+               };
+
+       };
+
+       clocks {
+               #address-cells = <1>;
+               #size-cells = <1>;
+               compatible = "simple-bus";
+               ranges;
+
+               system_clk: dummy13m {
+                       compatible = "fixed-clock";
+                       clock-frequency = <13000000>;
+                       #clock-cells = <0>;
+               };
+
+               rtc_clk: dummy32k {
+                       compatible = "fixed-clock";
+                       clock-frequency = <32000>;
+                       #clock-cells = <0>;
+               };
+       };
+
+       soc {
+               #address-cells = <1>;
+               #size-cells = <1>;
+               compatible = "simple-bus";
+               ranges;
+
+               timer: timer@10008000 {
+                       compatible = "mediatek,mt6577-timer";
+                       reg = <0x10008000 0x80>;
+                       interrupts = <GIC_SPI 113 IRQ_TYPE_EDGE_RISING>;
+                       clocks = <&system_clk>, <&rtc_clk>;
+                       clock-names = "system-clk", "rtc-clk";
+               };
+
+               gic: interrupt-controller@10212000 {
+                       compatible = "arm,cortex-a15-gic";
+                       interrupt-controller;
+                       #interrupt-cells = <3>;
+                       reg = <0x10211000 0x1000>,
+                             <0x10212000 0x1000>,
+                             <0x10214000 0x2000>,
+                             <0x10216000 0x2000>;
+               };
+       };
+};

diff --git a/arch/arm/mach-mediatek/Kconfig b/arch/arm/mach-mediatek/Kconfig
new file mode 100644 (file)
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 (file)
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 (file)
index 0000000..f2acf07
--- /dev/null
+++ b/arch/arm/mach-mediatek/mediatek.c
@@ -0,0 +1,27 @@
+/*
+ * Device Tree support for Mediatek SoCs
+ *
+ * Copyright (c) 2014 MundoReader S.L.
+ * Author: Matthias Brugger <matthias.bgg@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/init.h>
+#include <asm/mach/arch.h>
+
+static const char * const mediatek_board_dt_compat[] = {
+       "mediatek,mt6589",
+       NULL,
+};
+
+DT_MACHINE_START(MEDIATEK_DT, "Mediatek Cortex-A7 (Device Tree)")
+       .dt_compat      = mediatek_board_dt_compat,
+MACHINE_END