[PATCH 2/3] arm: dts: Add Siemens Draco SOM dtsi

[sr@denx.de (Stefan Roese)]

This patch adds support for the Siemens Draco SOM (System On Module) which
is used by multiple Siemens boards. Support for one is posted in this
series as well, the dxr2-e.

This SOM is based on the TI AM3352 with the following configuration:

- CPU: AM3352BZCEA30
- RAM: 128MB DDR3 at 303MHz
- NAND FLASH: 256MB
- RTC: disabled via hw wiring (registers not available!)

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Lukas Stockmann <lukas.stockmann@siemens.com>
Cc: Benoit Cousson <bcousson@baylibre.com>
Cc: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/am335x-draco.dtsi | 163 ++++++++++++++++++++++++++++++++++++
 1 file changed, 163 insertions(+)
 create mode 100644 arch/arm/boot/dts/am335x-draco.dtsi

diff --git a/arch/arm/boot/dts/am335x-draco.dtsi b/arch/arm/boot/dts/am335x-draco.dtsi
new file mode 100644
index 0000000..88b414a
--- /dev/null
+++ b/arch/arm/boot/dts/am335x-draco.dtsi
@@ -0,0 +1,163 @@
+/*
+ * Common support for Siemens Draco SOM (AM335x based)
+ *
+ * Copyright (C) 2013,2014 - Stefan Roese <sr@denx.de>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+/ {
+	memory {
+		device_type = "memory";
+		reg = <0x80000000 0x08000000>; /* 128 MB */
+	};
+
+	am33xx_pinmux: pinmux at 44e10800 {
+		i2c0_pins: pinmux_i2c0_pins {
+			pinctrl-single,pins = <
+				0x188 (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c0_sda.i2c0_sda */
+				0x18c (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c0_scl.i2c0_scl */
+			>;
+		};
+
+		uart0_pins: pinmux_uart0_pins {
+			pinctrl-single,pins = <
+				0x170 (PIN_INPUT_PULLUP | MUX_MODE0)	/* uart0_rxd.uart0_rxd */
+				0x174 (PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* uart0_txd.uart0_txd */
+			>;
+		};
+
+		nandflash_pins: nandflash_pins {
+			pinctrl-single,pins = <
+				0x0 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad0.gpmc_ad0 */
+				0x4 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad1.gpmc_ad1 */
+				0x8 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad2.gpmc_ad2 */
+				0xc (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad3.gpmc_ad3 */
+				0x10 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad4.gpmc_ad4 */
+				0x14 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad5.gpmc_ad5 */
+				0x18 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad6.gpmc_ad6 */
+				0x1c (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad7.gpmc_ad7 */
+				0x70 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_wait0.gpmc_wait0 */
+				0x74 (PIN_INPUT_PULLUP | MUX_MODE7)	/* gpmc_wpn.gpio0_30 */
+				0x7c (PIN_OUTPUT | MUX_MODE0)		/* gpmc_csn0.gpmc_csn0  */
+				0x90 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_advn_ale.gpmc_advn_ale */
+				0x94 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_oen_ren.gpmc_oen_ren */
+				0x98 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_wen.gpmc_wen */
+				0x9c (PIN_OUTPUT | MUX_MODE0)		/* gpmc_be0n_cle.gpmc_be0n_cle */
+			>;
+		};
+	};
+
+	ocp {
+		uart0: serial at 44e09000 {
+			pinctrl-names = "default";
+			pinctrl-0 = <&uart0_pins>;
+			status = "okay";
+		};
+
+		i2c0: i2c at 44e0b000 {
+			pinctrl-names = "default";
+			pinctrl-0 = <&i2c0_pins>;
+
+			status = "okay";
+			clock-frequency = <400000>;
+
+			eeprom: eeprom at 50 {
+				compatible = "atmel,24c128";
+				reg = <0x50>;
+				pagesize = <64>;
+			};
+		};
+
+		musb: usb at 47400000 {
+			status = "okay";
+
+			control at 44e10000 {
+				status = "okay";
+			};
+
+			usb-phy at 47401300 {
+				status = "okay";
+			};
+
+			usb-phy at 47401b00 {
+				status = "okay";
+			};
+
+			usb at 47401000 {
+				status = "okay";
+			};
+
+			usb at 47401800 {
+				status = "okay";
+				dr_mode = "host";
+			};
+
+			dma-controller at 07402000  {
+				status = "okay";
+			};
+		};
+	};
+};
+
+&timer3 {
+	status = "disabled";
+};
+
+&uart4 {
+	status = "disabled";
+};
+
+&elm {
+	status = "okay";
+};
+
+&gpmc {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&nandflash_pins>;
+
+	ranges = <0 0 0x08000000 0x10000000>;	/* CS0: NAND */
+
+	nand at 0,0 {
+		reg = <0 0 0>; /* CS0, offset 0 */
+		nand-bus-width = <8>;
+		ti,nand-ecc-opt = "bch8";
+		gpmc,device-nand = "true";
+		gpmc,device-width = <1>;
+		gpmc,sync-clk-ps = <0>;
+		gpmc,cs-on-ns = <0>;
+		gpmc,cs-rd-off-ns = <44>;
+		gpmc,cs-wr-off-ns = <44>;
+		gpmc,adv-on-ns = <6>;
+		gpmc,adv-rd-off-ns = <34>;
+		gpmc,adv-wr-off-ns = <44>;
+		gpmc,we-on-ns = <0>;
+		gpmc,we-off-ns = <40>;
+		gpmc,oe-on-ns = <0>;
+		gpmc,oe-off-ns = <54>;
+		gpmc,access-ns = <64>;
+		gpmc,rd-cycle-ns = <82>;
+		gpmc,wr-cycle-ns = <82>;
+		gpmc,wait-on-read = "true";
+		gpmc,wait-on-write = "true";
+		gpmc,bus-turnaround-ns = <0>;
+		gpmc,cycle2cycle-delay-ns = <0>;
+		gpmc,clk-activation-ns = <0>;
+		gpmc,wait-monitoring-ns = <0>;
+		gpmc,wr-access-ns = <40>;
+		gpmc,wr-data-mux-bus-ns = <0>;
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+		elm_id = <&elm>;
+	};
+};
+
+/* disable the RTC node as its not accessible on the draco/dxr2 board */
+&rtc {
+	status = "disabled";
+	ti,hwmods = "disabled";
+};
-- 
1.8.5.3