ARM: dts: AM335x-evmsk: Add initial support

Add initial DTS support for AM335x-evm sk.

Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>

arch/arm/dts/Makefile

@@ -91,7 +91,8 @@ dtb-$(CONFIG_ARCH_ZYNQMP) += \
 	zynqmp-zc1751-xm015-dc1.dtb		\
 	zynqmp-zc1751-xm016-dc2.dtb		\
 	zynqmp-zc1751-xm019-dc5.dtb
-dtb-$(CONFIG_AM33XX) += am335x-boneblack.dtb am335x-bone.dtb am335x-evm.dtb
+dtb-$(CONFIG_AM33XX) += am335x-boneblack.dtb am335x-bone.dtb am335x-evm.dtb \
+	am335x-evmsk.dtb
 dtb-$(CONFIG_AM43XX) += am437x-gp-evm.dtb am437x-sk-evm.dtb	\
 	am43x-epos-evm.dtb \
 	am437x-idk-evm.dtb

board/ti/am335x/board.c

@@ -642,6 +642,8 @@ int board_fit_config_name_match(const char *name)
 		return 0;
 	else if (board_is_bone_lt() && !strcmp(name, "am335x-boneblack"))
 		return 0;
+	else if (board_is_evm_sk() && !strcmp(name, "am335x-evmsk"))
+		return 0;
 	else
 		return -1;
 }

configs/am335x_evm_defconfig

@@ -48,4 +48,4 @@ CONFIG_RSA=y
 CONFIG_FIT=y
 CONFIG_SPL_OF_LIBFDT=y
 CONFIG_SPL_LOAD_FIT=y
-CONFIG_OF_LIST="am335x-evm am335x-bone am335x-boneblack"
+CONFIG_OF_LIST="am335x-evm am335x-bone am335x-boneblack am335x-evmsk"

include/dt-bindings/pinctrl/omap.h

@@ -53,5 +53,42 @@
 #define PIN_OFF_INPUT_PULLDOWN	(OFF_EN | OFF_PULL_EN)
 #define PIN_OFF_WAKEUPENABLE	WAKEUP_EN
 
+/*
+ * Macros to allow using the absolute physical address instead of the
+ * padconf registers instead of the offset from padconf base.
+ */
+#define OMAP_IOPAD_OFFSET(pa, offset)	(((pa) & 0xffff) - (offset))
+
+#define OMAP2420_CORE_IOPAD(pa, val)	OMAP_IOPAD_OFFSET((pa), 0x0030) (val)
+#define OMAP2430_CORE_IOPAD(pa, val)	OMAP_IOPAD_OFFSET((pa), 0x2030) (val)
+#define OMAP3_CORE1_IOPAD(pa, val)	OMAP_IOPAD_OFFSET((pa), 0x2030) (val)
+#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 DM814X_IOPAD(pa, val)		OMAP_IOPAD_OFFSET((pa), 0x0800) (val)
+#define DM816X_IOPAD(pa, val)		OMAP_IOPAD_OFFSET((pa), 0x0800) (val)
+#define AM33XX_IOPAD(pa, val)		OMAP_IOPAD_OFFSET((pa), 0x0800) (val)
+
+/*
+ * Macros to allow using the offset from the padconf physical address
+ * instead  of the offset from padconf base.
+ */
+#define OMAP_PADCONF_OFFSET(offset, base_offset)	((offset) - (base_offset))
+
+#define OMAP4_IOPAD(offset, val)	OMAP_PADCONF_OFFSET((offset), 0x0040) (val)
+#define OMAP5_IOPAD(offset, val)	OMAP_PADCONF_OFFSET((offset), 0x0040) (val)
+
+/*
+ * Define some commonly used pins configured by the boards.
+ * Note that some boards use alternative pins, so check
+ * the schematics before using these.
+ */
+#define OMAP3_UART1_RX		0x152
+#define OMAP3_UART2_RX		0x14a
+#define OMAP3_UART3_RX		0x16e
+#define OMAP4_UART2_RX		0xdc
+#define OMAP4_UART3_RX		0x104
+#define OMAP4_UART4_RX		0x11c
+
 #endif