[PATCH v5 0/3] arm: add basic support for Rockchip Cortex-A9 SoCs

[PATCH v5 0/3] arm: add basic support for Rockchip Cortex-A9 SoCs

[Heiko Stübner]

Fifth version of basic Rockchip A9 support.

Following a comment from Arnd, I stripped the submission from all specific
clocks, only using dummy clocks for now. It's enough to reach a shell in an
initramfs. MMC patches are currently pending on the mmc list, so if they also
get merged accessing the sd controllers would also be possible.

Changes since v4:
- remove ifdef around l2x0 init
- only use dummy clocks

Changes since v3:
- split out standalone dw_mmc patches (submitted to linux-mmc)
- Remove divider and mux clocks and use fixed rate clocks instead until
  divider and mux clocks have got their generic dt bindings
- Make the gate clock use CLK_OF_DECLARE and document the bindings

Changes since v2:
- use common (pending review) HIWORD_MASK clock flag from Haojian Zhuang and me
- pinctrl driver is already in the pinctrl tree
- add core-periph clock that supplies the twd
- split "mmc: dw_mmc-pltfm: add Rockchip variant" into move and feature parts
  as suggested by Andy Shevchenko

Changes since v1:
- addressed Linus Walleij's comments to the pinctrl driver, including the
  move to generic pinconfig (hopefully I did catch all)
- renamed the clocks to use the SoC name of the initial user
  as suggested by Olof Johansson
- fixed the uart address, found by Arnd Bergmann
- address Arnd's comments on the board file (use of_clk_init and friends,
  remove map_io, use real soc names)
- removed Makefile.boot as suggested by Thomas Petazzoni


no dependencies anymore

Heiko Stuebner (3):
  arm: Add basic clocks for Rockchip rk3066a SoCs
  arm: add debug uarts for rockchip rk29xx and rk3xxx series
  arm: add basic support for Rockchip RK3066a boards

 arch/arm/Kconfig                      |    2 +
 arch/arm/Kconfig.debug                |   34 +++
 arch/arm/Makefile                     |    1 +
 arch/arm/boot/dts/rk3066a-clocks.dtsi |   52 +++++
 arch/arm/boot/dts/rk3066a.dtsi        |  390 +++++++++++++++++++++++++++++++++
 arch/arm/include/debug/rockchip.S     |   42 ++++
 arch/arm/mach-rockchip/Kconfig        |   16 ++
 arch/arm/mach-rockchip/Makefile       |    1 +
 arch/arm/mach-rockchip/rockchip.c     |   52 +++++
 9 files changed, 590 insertions(+)
 create mode 100644 arch/arm/boot/dts/rk3066a-clocks.dtsi
 create mode 100644 arch/arm/boot/dts/rk3066a.dtsi
 create mode 100644 arch/arm/include/debug/rockchip.S
 create mode 100644 arch/arm/mach-rockchip/Kconfig
 create mode 100644 arch/arm/mach-rockchip/Makefile
 create mode 100644 arch/arm/mach-rockchip/rockchip.c

-- 
1.7.10.4

[PATCH v5 1/3] arm: Add basic clocks for Rockchip rk3066a SoCs

[Heiko Stübner]

This adds a basic clock setup for rk3066a SoCs, currently only using
dummy clocks to satisfy drivers requiring clocks..

Clocks whose rates need to be known are supplied by fixed-rate
"dummy"-clocks that provide the correct rate. This is uncritical insofar
that the only bootloader currently in existence for Rockchip devices
is the propietary Rockchip one that always setups the clocks in the
necessary and same way.

Signed-off-by: Heiko Stuebner <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>
---
 arch/arm/boot/dts/rk3066a-clocks.dtsi |   52 +++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 arch/arm/boot/dts/rk3066a-clocks.dtsi

diff --git a/arch/arm/boot/dts/rk3066a-clocks.dtsi b/arch/arm/boot/dts/rk3066a-clocks.dtsi
new file mode 100644
index 0000000..4db426b
--- /dev/null
+++ b/arch/arm/boot/dts/rk3066a-clocks.dtsi
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2013 MundoReader S.L.
+ * Author: Heiko Stuebner <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>
+ *
+ * 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.
+ */
+
+/ {
+	clocks {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		/*
+		 * These are dummy clock, to be used as placeholder when
+		 * a specific clock is not yet implemented. It should be
+		 * dropped when the driver is complete.
+		 */
+		dummy: dummy {
+			compatible = "fixed-clock";
+			clock-frequency = <0>;
+			#clock-cells = <0>;
+		};
+
+		xin24m: xin24m {
+			compatible = "fixed-clock";
+			clock-frequency = <24000000>;
+			#clock-cells = <0>;
+		};
+
+		dummy48m: dummy48m {
+			compatible = "fixed-clock";
+			clock-frequency = <48000000>;
+			#clock-cells = <0>;
+		};
+
+		dummy150m: dummy150m {
+			compatible = "fixed-clock";
+			clock-frequency = <150000000>;
+			#clock-cells = <0>;
+		};
+	};
+};
-- 
1.7.10.4

[PATCH v5 2/3] arm: add debug uarts for rockchip rk29xx and rk3xxx series

[Heiko Stübner]

Uarts on all recent Rockchip SoCs are Synopsis DesignWare 8250 types.
Only their addresses vary very much.

This patch adds the necessary definitions to use any of the uart ports
for early debug purposes.

Signed-off-by: Heiko Stuebner <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>
---
 arch/arm/Kconfig.debug            |   34 ++++++++++++++++++++++++++++++
 arch/arm/include/debug/rockchip.S |   42 +++++++++++++++++++++++++++++++++++++
 2 files changed, 76 insertions(+)
 create mode 100644 arch/arm/include/debug/rockchip.S

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 003f371..0e88bc8 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -399,6 +399,13 @@ choice
 		  their output to the standard serial port on the RealView
 		  PB1176 platform.
 
+	config DEBUG_ROCKCHIP_UART
+		bool "Kernel low-level debugging messages via Rockchip UART"
+		depends on ARCH_ROCKCHIP
+		help
+		  Say Y here if you want kernel low-level debugging support
+		  on Rockchip based platforms.
+
 	config DEBUG_S3C_UART0
 		depends on PLAT_SAMSUNG
 		select DEBUG_EXYNOS_UART if ARCH_EXYNOS
@@ -643,6 +650,32 @@ endchoice
 
 choice
 	prompt "Low-level debug console UART"
+	depends on DEBUG_ROCKCHIP_UART
+
+	config DEBUG_RK29_UART0
+		bool "RK29 UART0"
+
+	config DEBUG_RK29_UART1
+		bool "RK29 UART1"
+
+	config DEBUG_RK29_UART2
+		bool "RK29 UART2"
+
+	config DEBUG_RK3X_UART0
+		bool "RK3X UART0"
+
+	config DEBUG_RK3X_UART1
+		bool "RK3X UART1"
+
+	config DEBUG_RK3X_UART2
+		bool "RK3X UART2"
+
+	config DEBUG_RK3X_UART3
+		bool "RK3X UART3"
+endchoice
+
+choice
+	prompt "Low-level debug console UART"
 	depends on DEBUG_LL && DEBUG_TEGRA_UART
 
 	config TEGRA_DEBUG_UART_AUTO_ODMDATA
@@ -697,6 +730,7 @@ config DEBUG_LL_INCLUDE
 	default "debug/picoxcell.S" if DEBUG_PICOXCELL_UART
 	default "debug/pxa.S" if DEBUG_PXA_UART1 || DEBUG_MMP_UART2 || \
 				 DEBUG_MMP_UART3
+	default "debug/rockchip.S" if DEBUG_ROCKCHIP_UART
 	default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
 	default "debug/socfpga.S" if DEBUG_SOCFPGA_UART
 	default "debug/sunxi.S" if DEBUG_SUNXI_UART0 || DEBUG_SUNXI_UART1
diff --git a/arch/arm/include/debug/rockchip.S b/arch/arm/include/debug/rockchip.S
new file mode 100644
index 0000000..cfd883e
--- /dev/null
+++ b/arch/arm/include/debug/rockchip.S
@@ -0,0 +1,42 @@
+/*
+ * Early serial output macro for Rockchip SoCs
+ *
+ * Copyright (C) 2012 Maxime Ripard
+ *
+ * Maxime Ripard <maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
+ *
+ * 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.
+*/
+
+#if defined(CONFIG_DEBUG_RK29_UART0)
+#define ROCKCHIP_UART_DEBUG_PHYS_BASE 0x20060000
+#define ROCKCHIP_UART_DEBUG_VIRT_BASE 0xfed60000
+#elif defined(CONFIG_DEBUG_RK29_UART1)
+#define ROCKCHIP_UART_DEBUG_PHYS_BASE 0x20064000
+#define ROCKCHIP_UART_DEBUG_VIRT_BASE 0xfed64000
+#elif defined(CONFIG_DEBUG_RK29_UART2)
+#define ROCKCHIP_UART_DEBUG_PHYS_BASE 0x20068000
+#define ROCKCHIP_UART_DEBUG_VIRT_BASE 0xfed68000
+#elif defined(CONFIG_DEBUG_RK3X_UART0)
+#define ROCKCHIP_UART_DEBUG_PHYS_BASE 0x10124000
+#define ROCKCHIP_UART_DEBUG_VIRT_BASE 0xfeb24000
+#elif defined(CONFIG_DEBUG_RK3X_UART1)
+#define ROCKCHIP_UART_DEBUG_PHYS_BASE 0x10126000
+#define ROCKCHIP_UART_DEBUG_VIRT_BASE 0xfeb26000
+#elif defined(CONFIG_DEBUG_RK3X_UART2)
+#define ROCKCHIP_UART_DEBUG_PHYS_BASE 0x20064000
+#define ROCKCHIP_UART_DEBUG_VIRT_BASE 0xfed64000
+#elif defined(CONFIG_DEBUG_RK3X_UART3)
+#define ROCKCHIP_UART_DEBUG_PHYS_BASE 0x20068000
+#define ROCKCHIP_UART_DEBUG_VIRT_BASE 0xfed68000
+#endif
+
+	.macro	addruart, rp, rv, tmp
+	ldr	\rp, =ROCKCHIP_UART_DEBUG_PHYS_BASE
+	ldr	\rv, =ROCKCHIP_UART_DEBUG_VIRT_BASE
+	.endm
+
+#define UART_SHIFT	2
+#include <asm/hardware/debug-8250.S>
-- 
1.7.10.4

[PATCH v5 3/3] arm: add basic support for Rockchip RK3066a boards

[Heiko Stübner]

This adds a generic devicetree board file and a dtsi for boards
based on the RK3066a SoCs from Rockchip.

Apart from the generic parts (gic, clocks, pinctrl) the only components
currently supported are the timers, uarts and mmc ports (all DesignWare-
based).

Signed-off-by: Heiko Stuebner <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>
Acked-by: Olof Johansson <olof-nZhT3qVonbNeoWH0uzbU5w@public.gmane.org>
---
 arch/arm/Kconfig                  |    2 +
 arch/arm/Makefile                 |    1 +
 arch/arm/boot/dts/rk3066a.dtsi    |  390 +++++++++++++++++++++++++++++++++++++
 arch/arm/mach-rockchip/Kconfig    |   16 ++
 arch/arm/mach-rockchip/Makefile   |    1 +
 arch/arm/mach-rockchip/rockchip.c |   52 +++++
 6 files changed, 462 insertions(+)
 create mode 100644 arch/arm/boot/dts/rk3066a.dtsi
 create mode 100644 arch/arm/mach-rockchip/Kconfig
 create mode 100644 arch/arm/mach-rockchip/Makefile
 create mode 100644 arch/arm/mach-rockchip/rockchip.c

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index ca30d75..6c696f5 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1006,6 +1006,8 @@ source "arch/arm/mach-mmp/Kconfig"
 
 source "arch/arm/mach-realview/Kconfig"
 
+source "arch/arm/mach-rockchip/Kconfig"
+
 source "arch/arm/mach-sa1100/Kconfig"
 
 source "arch/arm/plat-samsung/Kconfig"
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index d7e5e8c..c01e4a7 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -172,6 +172,7 @@ machine-$(CONFIG_ARCH_PICOXCELL)	+= picoxcell
 machine-$(CONFIG_ARCH_SIRF)		+= prima2
 machine-$(CONFIG_ARCH_PXA)		+= pxa
 machine-$(CONFIG_ARCH_REALVIEW)		+= realview
+machine-$(CONFIG_ARCH_ROCKCHIP)		+= rockchip
 machine-$(CONFIG_ARCH_RPC)		+= rpc
 machine-$(CONFIG_ARCH_S3C24XX)		+= s3c24xx
 machine-$(CONFIG_ARCH_S3C64XX)		+= s3c64xx
diff --git a/arch/arm/boot/dts/rk3066a.dtsi b/arch/arm/boot/dts/rk3066a.dtsi
new file mode 100644
index 0000000..5c40ea9
--- /dev/null
+++ b/arch/arm/boot/dts/rk3066a.dtsi
@@ -0,0 +1,390 @@
+/*
+ * Copyright (c) 2013 MundoReader S.L.
+ * Author: Heiko Stuebner <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>
+ *
+ * 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/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+#include "skeleton.dtsi"
+#include "rk3066a-clocks.dtsi"
+
+/ {
+	compatible = "rockchip,rk3066a";
+	interrupt-parent = <&gic>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			next-level-cache = <&L2>;
+			reg = <0x0>;
+		};
+		cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			next-level-cache = <&L2>;
+			reg = <0x1>;
+		};
+	};
+
+	soc {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "simple-bus";
+		ranges;
+
+		gic: interrupt-controller@1013d000 {
+			compatible = "arm,cortex-a9-gic";
+			interrupt-controller;
+			#interrupt-cells = <3>;
+			reg = <0x1013d000 0x1000>,
+			      <0x1013c100 0x0100>;
+		};
+
+		L2: l2-cache-controller@10138000 {
+			compatible = "arm,pl310-cache";
+			reg = <0x10138000 0x1000>;
+			cache-unified;
+			cache-level = <2>;
+		};
+
+		local-timer@1013c600 {
+			compatible = "arm,cortex-a9-twd-timer";
+			reg = <0x1013c600 0x20>;
+			interrupts = <GIC_PPI 13 0x304>;
+			clocks = <&dummy150m>;
+		};
+
+		timer@20038000 {
+			compatible = "snps,dw-apb-timer-osc";
+			reg = <0x20038000 0x100>;
+			interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&xin24m>, <&dummy>;
+			clock-names = "timer", "pclk";
+		};
+
+		timer@2003a000 {
+			compatible = "snps,dw-apb-timer-osc";
+			reg = <0x2003a000 0x100>;
+			interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&xin24m>, <&dummy>;
+			clock-names = "timer", "pclk";
+		};
+
+		timer@2000e000 {
+			compatible = "snps,dw-apb-timer-osc";
+			reg = <0x2000e000 0x100>;
+			interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&xin24m>, <&dummy>;
+			clock-names = "timer", "pclk";
+		};
+
+		pinctrl@20008000 {
+			compatible = "rockchip,rk3066a-pinctrl";
+			reg = <0x20008000 0x150>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges;
+
+			gpio0: gpio0@20034000 {
+				compatible = "rockchip,gpio-bank";
+				reg = <0x20034000 0x100>;
+				interrupts = <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&dummy>;
+
+				gpio-controller;
+				#gpio-cells = <2>;
+
+				interrupt-controller;
+				#interrupt-cells = <2>;
+			};
+
+			gpio1: gpio1@2003c000 {
+				compatible = "rockchip,gpio-bank";
+				reg = <0x2003c000 0x100>;
+				interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&dummy>;
+
+				gpio-controller;
+				#gpio-cells = <2>;
+
+				interrupt-controller;
+				#interrupt-cells = <2>;
+			};
+
+			gpio2: gpio2@2003e000 {
+				compatible = "rockchip,gpio-bank";
+				reg = <0x2003e000 0x100>;
+				interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&dummy>;
+
+				gpio-controller;
+				#gpio-cells = <2>;
+
+				interrupt-controller;
+				#interrupt-cells = <2>;
+			};
+
+			gpio3: gpio3@20080000 {
+				compatible = "rockchip,gpio-bank";
+				reg = <0x20080000 0x100>;
+				interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&dummy>;
+
+				gpio-controller;
+				#gpio-cells = <2>;
+
+				interrupt-controller;
+				#interrupt-cells = <2>;
+			};
+
+			gpio4: gpio4@20084000 {
+				compatible = "rockchip,gpio-bank";
+				reg = <0x20084000 0x100>;
+				interrupts = <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&dummy>;
+
+				gpio-controller;
+				#gpio-cells = <2>;
+
+				interrupt-controller;
+				#interrupt-cells = <2>;
+			};
+
+			gpio6: gpio6@2000a000 {
+				compatible = "rockchip,gpio-bank";
+				reg = <0x2000a000 0x100>;
+				interrupts = <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&dummy>;
+
+				gpio-controller;
+				#gpio-cells = <2>;
+
+				interrupt-controller;
+				#interrupt-cells = <2>;
+			};
+
+			pcfg_pull_default: pcfg_pull_default {
+				bias-pull-pin-default;
+			};
+
+			pcfg_pull_none: pcfg_pull_none {
+				bias-disable;
+			};
+
+			uart0 {
+				uart0_xfer: uart0-xfer {
+					rockchip,pins = <RK_GPIO1 0 RK_FUNC_1 &pcfg_pull_default>,
+							<RK_GPIO1 1 RK_FUNC_1 &pcfg_pull_default>;
+					rockchip,config = <&pcfg_pull_default>;
+				};
+
+				uart0_cts: uart0-cts {
+					rockchip,pins = <RK_GPIO1 2 RK_FUNC_1 &pcfg_pull_default>;
+					rockchip,config = <&pcfg_pull_default>;
+				};
+
+				uart0_rts: uart0-rts {
+					rockchip,pins = <RK_GPIO1 3 RK_FUNC_1 &pcfg_pull_default>;
+					rockchip,config = <&pcfg_pull_default>;
+				};
+			};
+
+			uart1 {
+				uart1_xfer: uart1-xfer {
+					rockchip,pins = <RK_GPIO1 4 RK_FUNC_1 &pcfg_pull_default>,
+							<RK_GPIO1 5 RK_FUNC_1 &pcfg_pull_default>;
+					rockchip,config = <&pcfg_pull_default>;
+				};
+
+				uart1_cts: uart1-cts {
+					rockchip,pins = <RK_GPIO1 6 RK_FUNC_1 &pcfg_pull_default>;
+					rockchip,config = <&pcfg_pull_default>;
+				};
+
+				uart1_rts: uart1-rts {
+					rockchip,pins = <RK_GPIO1 7 RK_FUNC_1 &pcfg_pull_default>;
+					rockchip,config = <&pcfg_pull_default>;
+				};
+			};
+
+			uart2 {
+				uart2_xfer: uart2-xfer {
+					rockchip,pins = <RK_GPIO1 8 RK_FUNC_1 &pcfg_pull_default>,
+							<RK_GPIO1 9 RK_FUNC_1 &pcfg_pull_default>;
+					rockchip,config = <&pcfg_pull_default>;
+				};
+				/* no rts / cts for uart2 */
+			};
+
+			uart3 {
+				uart3_xfer: uart3-xfer {
+					rockchip,pins = <RK_GPIO3 27 RK_FUNC_1 &pcfg_pull_default>,
+							<RK_GPIO3 28 RK_FUNC_1 &pcfg_pull_default>;
+					rockchip,config = <&pcfg_pull_default>;
+				};
+
+				uart3_cts: uart3-cts {
+					rockchip,pins = <RK_GPIO3 29 RK_FUNC_1 &pcfg_pull_default>;
+					rockchip,config = <&pcfg_pull_default>;
+				};
+
+				uart3_rts: uart3-rts {
+					rockchip,pins = <RK_GPIO3 30 RK_FUNC_1 &pcfg_pull_default>;
+					rockchip,config = <&pcfg_pull_default>;
+				};
+			};
+
+			sd0 {
+				sd0_clk: sd0-clk {
+					rockchip,pins = <RK_GPIO3 8 RK_FUNC_1 &pcfg_pull_default>;
+					rockchip,config = <&pcfg_pull_default>;
+				};
+
+				sd0_cmd: sd0-cmd {
+					rockchip,pins = <RK_GPIO3 9 RK_FUNC_1 &pcfg_pull_default>;
+					rockchip,config = <&pcfg_pull_default>;
+				};
+
+				sd0_cd: sd0-cd {
+					rockchip,pins = <RK_GPIO3 14 RK_FUNC_1 &pcfg_pull_default>;
+					rockchip,config = <&pcfg_pull_default>;
+				};
+
+				sd0_wp: sd0-wp {
+					rockchip,pins = <RK_GPIO3 15 RK_FUNC_1 &pcfg_pull_default>;
+					rockchip,config = <&pcfg_pull_default>;
+				};
+
+				sd0_bus1: sd0-bus-width1 {
+					rockchip,pins = <RK_GPIO3 10 RK_FUNC_1 &pcfg_pull_default>;
+					rockchip,config = <&pcfg_pull_default>;
+				};
+
+				sd0_bus4: sd0-bus-width4 {
+					rockchip,pins = <RK_GPIO3 10 RK_FUNC_1 &pcfg_pull_default>,
+							<RK_GPIO3 11 RK_FUNC_1 &pcfg_pull_default>,
+							<RK_GPIO3 12 RK_FUNC_1 &pcfg_pull_default>,
+							<RK_GPIO3 13 RK_FUNC_1 &pcfg_pull_default>;
+					rockchip,config = <&pcfg_pull_default>;
+				};
+			};
+
+			sd1 {
+				sd1_clk: sd1-clk {
+					rockchip,pins = <RK_GPIO3 21 RK_FUNC_1 &pcfg_pull_default>;
+					rockchip,config = <&pcfg_pull_default>;
+				};
+
+				sd1_cmd: sd1-cmd {
+					rockchip,pins = <RK_GPIO3 16 RK_FUNC_1 &pcfg_pull_default>;
+					rockchip,config = <&pcfg_pull_default>;
+				};
+
+				sd1_cd: sd1-cd {
+					rockchip,pins = <RK_GPIO3 22 RK_FUNC_1 &pcfg_pull_default>;
+					rockchip,config = <&pcfg_pull_default>;
+				};
+
+				sd1_wp: sd1-wp {
+					rockchip,pins = <RK_GPIO3 23 RK_FUNC_1 &pcfg_pull_default>;
+					rockchip,config = <&pcfg_pull_default>;
+				};
+
+				sd1_bus1: sd1-bus-width1 {
+					rockchip,pins = <RK_GPIO3 17 RK_FUNC_1 &pcfg_pull_default>;
+					rockchip,config = <&pcfg_pull_default>;
+				};
+
+				sd1_bus4: sd1-bus-width4 {
+					rockchip,pins = <RK_GPIO3 17 RK_FUNC_1 &pcfg_pull_default>,
+							<RK_GPIO3 18 RK_FUNC_1 &pcfg_pull_default>,
+							<RK_GPIO3 19 RK_FUNC_1 &pcfg_pull_default>,
+							<RK_GPIO3 20 RK_FUNC_1 &pcfg_pull_default>;
+					rockchip,config = <&pcfg_pull_default>;
+				};
+			};
+		};
+
+		uart0: serial@10124000 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x10124000 0x400>;
+			interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <1>;
+			clocks = <&xin24m>;
+			status = "disabled";
+		};
+
+		uart1: serial@10126000 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x10126000 0x400>;
+			interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <1>;
+			clocks = <&xin24m>;
+			status = "disabled";
+		};
+
+		uart2: serial@20064000 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x20064000 0x400>;
+			interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <1>;
+			clocks = <&xin24m>;
+			status = "disabled";
+		};
+
+		uart3: serial@20068000 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x20068000 0x400>;
+			interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <1>;
+			clocks = <&xin24m>;
+			status = "disabled";
+		};
+
+		dwmmc@10214000 {
+			compatible = "rockchip,rk2928-dw-mshc";
+			reg = <0x10214000 0x1000>;
+			interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			clocks = <&dummy>, <&dummy48m>;
+			clock-names = "biu", "ciu";
+
+			status = "disabled";
+		};
+
+		dwmmc@10218000 {
+			compatible = "rockchip,rk2928-dw-mshc";
+			reg = <0x10218000 0x1000>;
+			interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			clocks = <&dummy>, <&dummy48m>;
+			clock-names = "biu", "ciu";
+
+			status = "disabled";
+		};
+	};
+};
diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
new file mode 100644
index 0000000..25ee12b
--- /dev/null
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -0,0 +1,16 @@
+config ARCH_ROCKCHIP
+	bool "Rockchip RK2928 and RK3xxx SOCs" if ARCH_MULTI_V7
+	select PINCTRL
+	select PINCTRL_ROCKCHIP
+	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 DW_APB_TIMER_OF
+	help
+	  Support for Rockchip's Cortex-A9 Single-to-Quad-Core-SoCs
+	  containing the RK2928, RK30xx and RK31xx series.
diff --git a/arch/arm/mach-rockchip/Makefile b/arch/arm/mach-rockchip/Makefile
new file mode 100644
index 0000000..1547d4f
--- /dev/null
+++ b/arch/arm/mach-rockchip/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_ARCH_ROCKCHIP) += rockchip.o
diff --git a/arch/arm/mach-rockchip/rockchip.c b/arch/arm/mach-rockchip/rockchip.c
new file mode 100644
index 0000000..724d2d8
--- /dev/null
+++ b/arch/arm/mach-rockchip/rockchip.c
@@ -0,0 +1,52 @@
+/*
+ * Device Tree support for Rockchip SoCs
+ *
+ * Copyright (c) 2013 MundoReader S.L.
+ * Author: Heiko Stuebner <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>
+ *
+ * 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 <linux/dw_apb_timer.h>
+#include <linux/clk-provider.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/hardware/cache-l2x0.h>
+
+static void __init rockchip_timer_init(void)
+{
+	of_clk_init(NULL);
+	clocksource_of_init();
+}
+
+static void __init rockchip_dt_init(void)
+{
+	l2x0_of_init(0, ~0UL);
+	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+}
+
+static const char * const rockchip_board_dt_compat[] = {
+	"rockchip,rk2928",
+	"rockchip,rk3066a",
+	"rockchip,rk3066b",
+	"rockchip,rk3188",
+	NULL,
+};
+
+DT_MACHINE_START(ROCKCHIP_DT, "Rockchip Cortex-A9 (Device Tree)")
+	.init_machine	= rockchip_dt_init,
+	.init_time	= rockchip_timer_init,
+	.dt_compat	= rockchip_board_dt_compat,
+MACHINE_END
-- 
1.7.10.4