ARM: dts: Add minimal support for dm8168-evm

This allows booting the device with basic functionality.

Note that at least on my revision c board the DDR3 does
not seem to work properly and only some of the memory
can be reliably used.

Also, the mainline u-boot does not seem to properly
initialize the ethernet, so I've been using the old TI
u-boot at:

http://arago-project.org/git/projects/?p=u-boot-omap3.git;a=summary

Cc: Brian Hutchinson <b.hutchman@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

3 files changed, 131 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 1b2c7de17cf3..a6ace4d57ea5 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -348,6 +348,7 @@ dtb-$(CONFIG_ARCH_OMAP3) += am3517-craneboard.dtb \
         omap3-sbc-t3730.dtb \
         omap3-thunder.dtb \
         omap3-zoom3.dtb
+dtb-$(CONFIG_SOC_TI81XX) += dm8168-evm.dtb
 dtb-$(CONFIG_SOC_AM33XX) += am335x-base0033.dtb \
         am335x-bone.dtb \
         am335x-boneblack.dtb \
diff --git a/arch/arm/boot/dts/dm8168-evm.dts b/arch/arm/boot/dts/dm8168-evm.dts
new file mode 100644
index 000000000000..857d0289ad4d
--- /dev/null
+++ b/arch/arm/boot/dts/dm8168-evm.dts
@@ -0,0 +1,129 @@
+/*
+ * 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.
+ */
+/dts-v1/;
+
+#include "dm816x.dtsi"
+
+/ {
+        model = "DM8168 EVM";
+        compatible = "ti,dm8168-evm", "ti,dm8168";
+
+        memory {
+                device_type = "memory";
+                reg = <0x80000000 0x40000000    /* 1 GB */
+                       0xc0000000 0x40000000>;  /* 1 GB */
+        };
+
+        /* FDC6331L controlled by SD_POW pin */
+        vmmcsd_fixed: fixedregulator@0 {
+                compatible = "regulator-fixed";
+                regulator-name = "vmmcsd_fixed";
+                regulator-min-microvolt = <3300000>;
+                regulator-max-microvolt = <3300000>;
+        };
+};
+
+&dm816x_pinmux {
+        mcspi1_pins: pinmux_mcspi1_pins {
+                pinctrl-single,pins = <
+                        DM816X_IOPAD(0x0a94, PIN_INPUT | MUX_MODE0)     /* SPI_SCLK */
+                        DM816X_IOPAD(0x0a98, PIN_OUTPUT | MUX_MODE0)    /* SPI_SCS0 */
+                        DM816X_IOPAD(0x0aa8, PIN_INPUT | MUX_MODE0)     /* SPI_D0 */
+                        DM816X_IOPAD(0x0aac, PIN_INPUT | MUX_MODE0)     /* SPI_D1 */
+                >;
+        };
+};
+
+&i2c1 {
+        extgpio0: pcf8575@20 {
+                compatible = "nxp,pcf8575";
+                reg = <0x20>;
+                gpio-controller;
+                #gpio-cells = <2>;
+        };
+};
+
+&i2c2 {
+        extgpio1: pcf8575@20 {
+                compatible = "nxp,pcf8575";
+                reg = <0x20>;
+                gpio-controller;
+                #gpio-cells = <2>;
+        };
+};
+
+&gpmc {
+        ranges = <0 0 0x04000000 0x01000000>;   /* CS0: 16MB for NAND */
+
+        nand@0,0 {
+                linux,mtd-name= "micron,mt29f2g16aadwp";
+                reg = <0 0 4>; /* CS0, offset 0, IO size 4 */
+                #address-cells = <1>;
+                #size-cells = <1>;
+                ti,nand-ecc-opt = "bch8";
+                nand-bus-width = <16>;
+                gpmc,device-width = <2>;
+                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>;
+                partition@0 {
+                        label = "X-Loader";
+                        reg = <0 0x80000>;
+                };
+                partition@0x80000 {
+                        label = "U-Boot";
+                        reg = <0x80000 0x1c0000>;
+                };
+                partition@0x1c0000 {
+                        label = "Environment";
+                        reg = <0x240000 0x40000>;
+                };
+                partition@0x280000 {
+                        label = "Kernel";
+                        reg = <0x280000 0x500000>;
+                };
+                partition@0x780000 {
+                        label = "Filesystem";
+                        reg = <0x780000 0xf880000>;
+                };
+        };
+};
+
+&mcspi1 {
+        pinctrl-names = "default";
+        pinctrl-0 = <&mcspi1_pins>;
+
+        m25p80@0 {
+                compatible = "w25x32";
+                spi-max-frequency = <48000000>;
+                reg = <0>;
+                #address-cells = <1>;
+                #size-cells = <1>;
+        };
+};
+
+&mmc1 {
+        vmmc-supply = <&vmmcsd_fixed>;
+};
diff --git a/include/dt-bindings/pinctrl/omap.h b/include/dt-bindings/pinctrl/omap.h
index 1c75b8ca5228..13949259705a 100644
--- a/include/dt-bindings/pinctrl/omap.h
+++ b/include/dt-bindings/pinctrl/omap.h
@@ -61,6 +61,7 @@
 #define OMAP3430_CORE2_IOPAD(pa, val)   OMAP_IOPAD_OFFSET((pa), 0x25d8) (val)
 #define OMAP3630_CORE2_IOPAD(pa, val)   OMAP_IOPAD_OFFSET((pa), 0x25a0) (val)
 #define OMAP3_WKUP_IOPAD(pa, val)       OMAP_IOPAD_OFFSET((pa), 0x2a00) (val)
+#define DM816X_IOPAD(pa, val)           OMAP_IOPAD_OFFSET((pa), 0x0800) (val)
 #define AM33XX_IOPAD(pa, val)           OMAP_IOPAD_OFFSET((pa), 0x0800) (val)
 #define AM4372_IOPAD(pa, val)           OMAP_IOPAD_OFFSET((pa), 0x0800) (val)
 #define DRA7XX_CORE_IOPAD(pa, val)      OMAP_IOPAD_OFFSET((pa), 0x3400) (val)