mediatek: add support for the new MT7623 Arm SoC

the support is still WIP. next steps are to make the pmic and ethernet work.
this is the first commit to make sure nothing gets lost.

Signed-off-by: John Crispin <blogic@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@47354 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 64 insertions, 0 deletions

diff --git a/target/linux/mediatek/patches/0029-dt-bindings-Add-I2C-bindings-for-mt65xx-mt81xx.patch b/target/linux/mediatek/patches/0029-dt-bindings-Add-I2C-bindings-for-mt65xx-mt81xx.patch
new file mode 100644
index 0000000000..03f03fb1dc
--- /dev/null
+++ b/target/linux/mediatek/patches/0029-dt-bindings-Add-I2C-bindings-for-mt65xx-mt81xx.patch
@@ -0,0 +1,64 @@
+From d1447a6815913823ef5e75d70efc6f08f288ee40 Mon Sep 17 00:00:00 2001
+From: Xudong Chen <xudong.chen@mediatek.com>
+Date: Wed, 6 May 2015 16:37:05 +0800
+Subject: [PATCH 29/76] dt-bindings: Add I2C bindings for mt65xx/mt81xx.
+
+Add devicetree bindings for Mediatek Soc I2C driver.
+
+Signed-off-by: Xudong Chen <xudong.chen@mediatek.com>
+Signed-off-by: Eddie Huang <eddie.huang@mediatek.com>
+---
+ .../devicetree/bindings/i2c/i2c-mt6577.txt         |   41 ++++++++++++++++++++
+ 1 file changed, 41 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/i2c/i2c-mt6577.txt
+
+diff --git a/Documentation/devicetree/bindings/i2c/i2c-mt6577.txt b/Documentation/devicetree/bindings/i2c/i2c-mt6577.txt
+new file mode 100644
+index 0000000..0ce6fa3
+--- /dev/null
++++ b/Documentation/devicetree/bindings/i2c/i2c-mt6577.txt
+@@ -0,0 +1,41 @@
++* Mediatek's I2C controller
++
++The Mediatek's I2C controller is used to interface with I2C devices.
++
++Required properties:
++  - compatible: value should be either of the following.
++      (a) "mediatek,mt6577-i2c", for i2c compatible with mt6577 i2c.
++      (b) "mediatek,mt6589-i2c", for i2c compatible with mt6589 i2c.
++      (c) "mediatek,mt8127-i2c", for i2c compatible with mt8127 i2c.
++      (d) "mediatek,mt8135-i2c", for i2c compatible with mt8135 i2c.
++      (e) "mediatek,mt8173-i2c", for i2c compatible with mt8173 i2c.
++  - reg: physical base address of the controller and dma base, length of memory
++    mapped region.
++  - interrupts: interrupt number to the cpu.
++  - clock-div: the fixed value for frequency divider of clock source in i2c
++    module. Each IC may be different.
++  - clocks: clock name from clock manager
++  - clock-names: Must include "main" and "dma", if enable have-pmic need include
++    "pmic" extra.
++
++Optional properties:
++  - clock-frequency: Frequency in Hz of the bus when transfer, the default value
++    is 100000.
++  - mediatek,have-pmic: platform can control i2c form special pmic side.
++    Only mt6589 and mt8135 support this feature.
++  - mediatek,use-push-pull: IO config use push-pull mode.
++
++Example:
++
++	i2c0: i2c@1100d000 {
++			compatible = "mediatek,mt6577-i2c";
++			reg = <0x1100d000 0x70>,
++			      <0x11000300 0x80>;
++			interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_LOW>;
++			clock-frequency = <400000>;
++			mediatek,have-pmic;
++			clock-div = <16>;
++			clocks = <&i2c0_ck>, <&ap_dma_ck>;
++			clock-names = "main", "dma";
++	};
++
+-- 
+1.7.10.4
+