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To: devicetree-discuss@lists.ozlabs.org
Date: Thu, 14 Jul 2011 03:06:14 +0500
Subject: [PATCH 3/4] dt: omap3: add generic board file for dt support
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From: "G, Manjunath Kondaiah" <manjugk@ti.com>
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	Wed, 13 Jul 2011 21:49:34 +0000 (UTC)

The generic board file is created and derived from beagle board file.
The beagle board file is migrated to boot from flattened device tree and
the cleanup of generic board file will happen in different stages.

The changes here focus on i2c device registration through dt and upcoming
patches in the series will adopt i2c driver to use dt registered i2c
devices.

Signed-off-by: G, Manjunath Kondaiah <manjugk@ti.com>
---
 arch/arm/mach-omap2/Kconfig             |   12 +
 arch/arm/mach-omap2/Makefile            |    2 +
 arch/arm/mach-omap2/board-omap3-dt.c    |  623 +++++++++++++++++++++++++++++++
 arch/arm/mach-omap2/board-omap3beagle.c |   13 -
 4 files changed, 637 insertions(+), 13 deletions(-)
 create mode 100644 arch/arm/mach-omap2/board-omap3-dt.c

diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 19d5891..174f6d1 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -302,6 +302,18 @@ config MACH_OMAP_3630SDP
 	default y
 	select OMAP_PACKAGE_CBP
 
+config MACH_OMAP3_DT
+	bool "Generic OMAP3 board(FDT support)"
+	depends on ARCH_OMAP3
+	select OMAP_PACKAGE_CBB
+	select USE_OF
+	select PROC_DEVICETREE
+
+	help
+	  Support for generic TI OMAP3 boards using Flattened Device Tree.
+	  Say Y here to enable OMAP3 device tree support
+	  More information at Documentation/devicetree
+
 config MACH_TI8168EVM
 	bool "TI8168 Evaluation Module"
 	depends on SOC_OMAPTI816X
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index b148077..86e66f7 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -178,6 +178,8 @@ obj-$(CONFIG_MACH_OMAP_H4)		+= board-h4.o
 obj-$(CONFIG_MACH_OMAP_2430SDP)		+= board-2430sdp.o \
 					   hsmmc.o
 obj-$(CONFIG_MACH_OMAP_APOLLON)		+= board-apollon.o
+obj-$(CONFIG_MACH_OMAP3_DT)		+= board-omap3-dt.o \
+					   hsmmc.o
 obj-$(CONFIG_MACH_OMAP3_BEAGLE)		+= board-omap3beagle.o \
 					   hsmmc.o
 obj-$(CONFIG_MACH_DEVKIT8000)     	+= board-devkit8000.o \
diff --git a/arch/arm/mach-omap2/board-omap3-dt.c b/arch/arm/mach-omap2/board-omap3-dt.c
new file mode 100644
index 0000000..14ee798
--- /dev/null
+++ b/arch/arm/mach-omap2/board-omap3-dt.c
@@ -0,0 +1,623 @@
+/*
+ * TI OMAP3 device tree board support
+ *
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/of_platform.h>
+#include <linux/of_address.h>
+#include <linux/leds.h>
+#include <linux/gpio.h>
+#include <linux/input.h>
+#include <linux/gpio_keys.h>
+#include <linux/opp.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/nand.h>
+#include <linux/mmc/host.h>
+
+#include <linux/regulator/machine.h>
+#include <linux/i2c/twl.h>
+#include <linux/irq.h>
+
+#include <mach/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/flash.h>
+
+#include <plat/board.h>
+#include <plat/common.h>
+#include <video/omapdss.h>
+#include <video/omap-panel-generic-dpi.h>
+#include <plat/gpmc.h>
+#include <plat/nand.h>
+#include <plat/usb.h>
+#include <plat/omap_device.h>
+
+#include "mux.h"
+#include "hsmmc.h"
+#include "timer-gp.h"
+#include "pm.h"
+#include "common-board-devices.h"
+
+/*
+ * OMAP3 Beagle revision
+ * Run time detection of Beagle revision is done by reading GPIO.
+ * GPIO ID -
+ *	AXBX	= GPIO173, GPIO172, GPIO171: 1 1 1
+ *	C1_3	= GPIO173, GPIO172, GPIO171: 1 1 0
+ *	C4	= GPIO173, GPIO172, GPIO171: 1 0 1
+ *	XM	= GPIO173, GPIO172, GPIO171: 0 0 0
+ */
+enum {
+	OMAP3BEAGLE_BOARD_UNKN = 0,
+	OMAP3BEAGLE_BOARD_AXBX,
+	OMAP3BEAGLE_BOARD_C1_3,
+	OMAP3BEAGLE_BOARD_C4,
+	OMAP3BEAGLE_BOARD_XM,
+};
+
+static u8 omap3_beagle_version;
+
+static u8 omap3_beagle_get_rev(void)
+{
+	return omap3_beagle_version;
+}
+
+static struct gpio omap3_beagle_rev_gpios[] __initdata = {
+	{ 171, GPIOF_IN, "rev_id_0"    },
+	{ 172, GPIOF_IN, "rev_id_1" },
+	{ 173, GPIOF_IN, "rev_id_2"    },
+};
+
+static void __init omap3_beagle_init_rev(void)
+{
+	int ret;
+	u16 beagle_rev = 0;
+
+	omap_mux_init_gpio(171, OMAP_PIN_INPUT_PULLUP);
+	omap_mux_init_gpio(172, OMAP_PIN_INPUT_PULLUP);
+	omap_mux_init_gpio(173, OMAP_PIN_INPUT_PULLUP);
+
+	ret = gpio_request_array(omap3_beagle_rev_gpios,
+				 ARRAY_SIZE(omap3_beagle_rev_gpios));
+	if (ret < 0) {
+		printk(KERN_ERR "Unable to get revision detection GPIO pins\n");
+		omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
+		return;
+	}
+
+	beagle_rev = gpio_get_value(171) | (gpio_get_value(172) << 1)
+			| (gpio_get_value(173) << 2);
+
+	gpio_free_array(omap3_beagle_rev_gpios,
+			ARRAY_SIZE(omap3_beagle_rev_gpios));
+
+	switch (beagle_rev) {
+	case 7:
+		printk(KERN_INFO "OMAP3 Beagle Rev: Ax/Bx\n");
+		omap3_beagle_version = OMAP3BEAGLE_BOARD_AXBX;
+		break;
+	case 6:
+		printk(KERN_INFO "OMAP3 Beagle Rev: C1/C2/C3\n");
+		omap3_beagle_version = OMAP3BEAGLE_BOARD_C1_3;
+		break;
+	case 5:
+		printk(KERN_INFO "OMAP3 Beagle Rev: C4\n");
+		omap3_beagle_version = OMAP3BEAGLE_BOARD_C4;
+		break;
+	case 0:
+		printk(KERN_INFO "OMAP3 Beagle Rev: xM\n");
+		omap3_beagle_version = OMAP3BEAGLE_BOARD_XM;
+		break;
+	default:
+		printk(KERN_INFO "OMAP3 Beagle Rev: unknown %hd\n", beagle_rev);
+		omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
+	}
+}
+
+static struct mtd_partition omap3beagle_nand_partitions[] = {
+	/* All the partition sizes are listed in terms of NAND block size */
+	{
+		.name		= "X-Loader",
+		.offset		= 0,
+		.size		= 4 * NAND_BLOCK_SIZE,
+		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
+	},
+	{
+		.name		= "U-Boot",
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x80000 */
+		.size		= 15 * NAND_BLOCK_SIZE,
+		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
+	},
+	{
+		.name		= "U-Boot Env",
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x260000 */
+		.size		= 1 * NAND_BLOCK_SIZE,
+	},
+	{
+		.name		= "Kernel",
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x280000 */
+		.size		= 32 * NAND_BLOCK_SIZE,
+	},
+	{
+		.name		= "File System",
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x680000 */
+		.size		= MTDPART_SIZ_FULL,
+	},
+};
+
+/* DSS */
+
+static int beagle_enable_dvi(struct omap_dss_device *dssdev)
+{
+	if (gpio_is_valid(dssdev->reset_gpio))
+		gpio_set_value(dssdev->reset_gpio, 1);
+
+	return 0;
+}
+
+static void beagle_disable_dvi(struct omap_dss_device *dssdev)
+{
+	if (gpio_is_valid(dssdev->reset_gpio))
+		gpio_set_value(dssdev->reset_gpio, 0);
+}
+
+static struct panel_generic_dpi_data dvi_panel = {
+	.name = "generic",
+	.platform_enable = beagle_enable_dvi,
+	.platform_disable = beagle_disable_dvi,
+};
+
+static struct omap_dss_device beagle_dvi_device = {
+	.type = OMAP_DISPLAY_TYPE_DPI,
+	.name = "dvi",
+	.driver_name = "generic_dpi_panel",
+	.data = &dvi_panel,
+	.phy.dpi.data_lines = 24,
+	.reset_gpio = -EINVAL,
+};
+
+static struct omap_dss_device beagle_tv_device = {
+	.name = "tv",
+	.driver_name = "venc",
+	.type = OMAP_DISPLAY_TYPE_VENC,
+	.phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
+};
+
+static struct omap_dss_device *beagle_dss_devices[] = {
+	&beagle_dvi_device,
+	&beagle_tv_device,
+};
+
+static struct omap_dss_board_info beagle_dss_data = {
+	.num_devices = ARRAY_SIZE(beagle_dss_devices),
+	.devices = beagle_dss_devices,
+	.default_device = &beagle_dvi_device,
+};
+
+static struct regulator_consumer_supply beagle_vdac_supply =
+	REGULATOR_SUPPLY("vdda_dac", "omapdss_venc");
+
+static struct regulator_consumer_supply beagle_vdvi_supplies[] = {
+	REGULATOR_SUPPLY("vdds_dsi", "omapdss"),
+	REGULATOR_SUPPLY("vdds_dsi", "omapdss_dsi1"),
+};
+
+static void __init beagle_display_init(void)
+{
+	int r;
+
+	r = gpio_request_one(beagle_dvi_device.reset_gpio, GPIOF_OUT_INIT_LOW,
+			     "DVI reset");
+	if (r < 0)
+		printk(KERN_ERR "Unable to get DVI reset GPIO\n");
+}
+
+#include "sdram-micron-mt46h32m32lf-6.h"
+
+static struct omap2_hsmmc_info mmc[] = {
+	{
+		.mmc		= 1,
+		.caps		= MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
+		.gpio_wp	= 29,
+	},
+	{}	/* Terminator */
+};
+
+static struct regulator_consumer_supply beagle_vmmc1_supply = {
+	.supply			= "vmmc",
+};
+
+static struct regulator_consumer_supply beagle_vsim_supply = {
+	.supply			= "vmmc_aux",
+};
+
+static struct gpio_led gpio_leds[];
+
+static int beagle_twl_gpio_setup(struct device *dev,
+		unsigned gpio, unsigned ngpio)
+{
+	int r, usb_pwr_level;
+
+	if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
+		mmc[0].gpio_wp = -EINVAL;
+	} else if ((omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C1_3) ||
+		(omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C4)) {
+		omap_mux_init_gpio(23, OMAP_PIN_INPUT);
+		mmc[0].gpio_wp = 23;
+	} else {
+		omap_mux_init_gpio(29, OMAP_PIN_INPUT);
+	}
+	/* gpio + 0 is "mmc0_cd" (input/IRQ) */
+	mmc[0].gpio_cd = gpio + 0;
+	omap2_hsmmc_init(mmc);
+
+	/* link regulators to MMC adapters */
+	beagle_vmmc1_supply.dev = mmc[0].dev;
+	beagle_vsim_supply.dev = mmc[0].dev;
+
+	/*
+	 * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
+	 * high / others active low)
+	 * DVI reset GPIO is different between beagle revisions
+	 */
+	if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
+		usb_pwr_level = GPIOF_OUT_INIT_HIGH;
+		beagle_dvi_device.reset_gpio = 129;
+		/*
+		 * gpio + 1 on Xm controls the TFP410's enable line (active low)
+		 * gpio + 2 control varies depending on the board rev as below:
+		 * P7/P8 revisions(prototype): Camera EN
+		 * A2+ revisions (production): LDO (DVI, serial, led blocks)
+		 */
+		r = gpio_request_one(gpio + 1, GPIOF_OUT_INIT_LOW,
+				     "nDVI_PWR_EN");
+		if (r)
+			pr_err("%s: unable to configure nDVI_PWR_EN\n",
+				__func__);
+		r = gpio_request_one(gpio + 2, GPIOF_OUT_INIT_HIGH,
+				     "DVI_LDO_EN");
+		if (r)
+			pr_err("%s: unable to configure DVI_LDO_EN\n",
+				__func__);
+	} else {
+		usb_pwr_level = GPIOF_OUT_INIT_LOW;
+		beagle_dvi_device.reset_gpio = 170;
+		/*
+		 * REVISIT: need ehci-omap hooks for external VBUS
+		 * power switch and overcurrent detect
+		 */
+		if (gpio_request_one(gpio + 1, GPIOF_IN, "EHCI_nOC"))
+			pr_err("%s: unable to configure EHCI_nOC\n", __func__);
+	}
+
+	gpio_request_one(gpio + TWL4030_GPIO_MAX, usb_pwr_level, "nEN_USB_PWR");
+
+	/* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
+	gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
+
+	return 0;
+}
+
+static struct twl4030_gpio_platform_data beagle_gpio_data = {
+	.gpio_base	= OMAP_MAX_GPIO_LINES,
+	.irq_base	= TWL4030_GPIO_IRQ_BASE,
+	.irq_end	= TWL4030_GPIO_IRQ_END,
+	.use_leds	= true,
+	.pullups	= BIT(1),
+	.pulldowns	= BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
+				| BIT(15) | BIT(16) | BIT(17),
+	.setup		= beagle_twl_gpio_setup,
+};
+
+/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
+static struct regulator_init_data beagle_vmmc1 = {
+	.constraints = {
+		.min_uV			= 1850000,
+		.max_uV			= 3150000,
+		.valid_modes_mask	= REGULATOR_MODE_NORMAL
+					| REGULATOR_MODE_STANDBY,
+		.valid_ops_mask		= REGULATOR_CHANGE_VOLTAGE
+					| REGULATOR_CHANGE_MODE
+					| REGULATOR_CHANGE_STATUS,
+	},
+	.num_consumer_supplies	= 1,
+	.consumer_supplies	= &beagle_vmmc1_supply,
+};
+
+/* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
+static struct regulator_init_data beagle_vsim = {
+	.constraints = {
+		.min_uV			= 1800000,
+		.max_uV			= 3000000,
+		.valid_modes_mask	= REGULATOR_MODE_NORMAL
+					| REGULATOR_MODE_STANDBY,
+		.valid_ops_mask		= REGULATOR_CHANGE_VOLTAGE
+					| REGULATOR_CHANGE_MODE
+					| REGULATOR_CHANGE_STATUS,
+	},
+	.num_consumer_supplies	= 1,
+	.consumer_supplies	= &beagle_vsim_supply,
+};
+
+/* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
+static struct regulator_init_data beagle_vdac = {
+	.constraints = {
+		.min_uV			= 1800000,
+		.max_uV			= 1800000,
+		.valid_modes_mask	= REGULATOR_MODE_NORMAL
+					| REGULATOR_MODE_STANDBY,
+		.valid_ops_mask		= REGULATOR_CHANGE_MODE
+					| REGULATOR_CHANGE_STATUS,
+	},
+	.num_consumer_supplies	= 1,
+	.consumer_supplies	= &beagle_vdac_supply,
+};
+
+/* VPLL2 for digital video outputs */
+static struct regulator_init_data beagle_vpll2 = {
+	.constraints = {
+		.name			= "VDVI",
+		.min_uV			= 1800000,
+		.max_uV			= 1800000,
+		.valid_modes_mask	= REGULATOR_MODE_NORMAL
+					| REGULATOR_MODE_STANDBY,
+		.valid_ops_mask		= REGULATOR_CHANGE_MODE
+					| REGULATOR_CHANGE_STATUS,
+	},
+	.num_consumer_supplies	= ARRAY_SIZE(beagle_vdvi_supplies),
+	.consumer_supplies	= beagle_vdvi_supplies,
+};
+
+static struct twl4030_usb_data beagle_usb_data = {
+	.usb_mode	= T2_USB_MODE_ULPI,
+};
+
+static struct twl4030_codec_audio_data beagle_audio_data;
+
+static struct twl4030_codec_data beagle_codec_data = {
+	.audio_mclk = 26000000,
+	.audio = &beagle_audio_data,
+};
+
+static struct twl4030_platform_data beagle_twldata = {
+	.irq_base	= TWL4030_IRQ_BASE,
+	.irq_end	= TWL4030_IRQ_END,
+
+	/* platform_data for children goes here */
+	.usb		= &beagle_usb_data,
+	.gpio		= &beagle_gpio_data,
+	.codec		= &beagle_codec_data,
+	.vmmc1		= &beagle_vmmc1,
+	.vsim		= &beagle_vsim,
+	.vdac		= &beagle_vdac,
+	.vpll2		= &beagle_vpll2,
+};
+
+struct of_dev_auxdata omap3_auxdata_lookup[] __initdata = {
+	OF_DEV_AUXDATA("ti,omap3-i2c", 0, "i2c.1", &beagle_twldata),
+	OF_DEV_AUXDATA("ti,omap3-i2c", 0, "i2c.2", NULL),
+	OF_DEV_AUXDATA("ti,omap3-i2c", 0, "i2c.3", NULL),
+	{}
+};
+
+static int __init omap3_beagle_i2c_init(void)
+{
+	omap3_pmic_init("twl4030", &beagle_twldata);
+	return 0;
+}
+
+static struct gpio_led gpio_leds[] = {
+	{
+		.name			= "beagleboard::usr0",
+		.default_trigger	= "heartbeat",
+		.gpio			= 150,
+	},
+	{
+		.name			= "beagleboard::usr1",
+		.default_trigger	= "mmc0",
+		.gpio			= 149,
+	},
+	{
+		.name			= "beagleboard::pmu_stat",
+		.gpio			= -EINVAL,	/* gets replaced */
+		.active_low		= true,
+	},
+};
+
+static struct gpio_led_platform_data gpio_led_info = {
+	.leds		= gpio_leds,
+	.num_leds	= ARRAY_SIZE(gpio_leds),
+};
+
+static struct platform_device leds_gpio = {
+	.name	= "leds-gpio",
+	.id	= -1,
+	.dev	= {
+		.platform_data	= &gpio_led_info,
+	},
+};
+
+static struct gpio_keys_button gpio_buttons[] = {
+	{
+		.code			= BTN_EXTRA,
+		.gpio			= 7,
+		.desc			= "user",
+		.wakeup			= 1,
+	},
+};
+
+static struct gpio_keys_platform_data gpio_key_info = {
+	.buttons	= gpio_buttons,
+	.nbuttons	= ARRAY_SIZE(gpio_buttons),
+};
+
+static struct platform_device keys_gpio = {
+	.name	= "gpio-keys",
+	.id	= -1,
+	.dev	= {
+		.platform_data	= &gpio_key_info,
+	},
+};
+
+static void __init omap3_init_early(void)
+{
+	omap2_init_common_infrastructure();
+	omap2_init_common_devices(mt46h32m32lf6_sdrc_params,
+				  mt46h32m32lf6_sdrc_params);
+}
+
+static void __init omap3_init_irq(void)
+{
+	omap_init_irq();
+#ifdef CONFIG_OMAP_32K_TIMER
+	omap2_gp_clockevent_set_gptimer(12);
+#endif
+}
+
+static struct platform_device *omap3_beagle_devices[] __initdata = {
+	&leds_gpio,
+	&keys_gpio,
+};
+
+static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
+
+	.port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
+	.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
+	.port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
+
+	.phy_reset  = true,
+	.reset_gpio_port[0]  = -EINVAL,
+	.reset_gpio_port[1]  = 147,
+	.reset_gpio_port[2]  = -EINVAL
+};
+
+#ifdef CONFIG_OMAP_MUX
+static struct omap_board_mux board_mux[] __initdata = {
+	{ .reg_offset = OMAP_MUX_TERMINATOR },
+};
+#endif
+
+static void __init beagle_opp_init(void)
+{
+	int r = 0;
+
+	/* Initialize the omap3 opp table */
+	if (omap3_opp_init()) {
+		pr_err("%s: opp default init failed\n", __func__);
+		return;
+	}
+
+	/* Custom OPP enabled for XM */
+	if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
+		struct omap_hwmod *mh = omap_hwmod_lookup("mpu");
+		struct omap_hwmod *dh = omap_hwmod_lookup("iva");
+		struct device *dev;
+
+		if (!mh || !dh) {
+			pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
+				__func__, mh, dh);
+			return;
+		}
+		/* Enable MPU 1GHz and lower opps */
+		dev = &mh->od->pdev.dev;
+		r = opp_enable(dev, 800000000);
+		/* TODO: MPU 1GHz needs SR and ABB */
+
+		/* Enable IVA 800MHz and lower opps */
+		dev = &dh->od->pdev.dev;
+		r |= opp_enable(dev, 660000000);
+		/* TODO: DSP 800MHz needs SR and ABB */
+		if (r) {
+			pr_err("%s: failed to enable higher opp %d\n",
+				__func__, r);
+			/*
+			 * Cleanup - disable the higher freqs - we dont care
+			 * about the results
+			 */
+			dev = &mh->od->pdev.dev;
+			opp_disable(dev, 800000000);
+			dev = &dh->od->pdev.dev;
+			opp_disable(dev, 660000000);
+		}
+	}
+	return;
+}
+
+static struct of_device_id omap3_dt_intc_match[] __initdata = {
+	{ .compatible = "ti,omap3-intc", },
+	{}
+};
+
+static struct of_device_id omap_dt_match_table[] __initdata = {
+	{ .compatible = "ti,l4-core", },
+	{}
+};
+
+static void __init omap3_init(void)
+{
+	struct device_node *node;
+
+	node = of_find_matching_node_by_address(NULL, omap3_dt_intc_match,
+						OMAP34XX_IC_BASE);
+	if (node)
+		irq_domain_add_simple(node, 0);
+
+	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
+	omap3_beagle_init_rev();
+	omap3_beagle_i2c_init();
+	platform_add_devices(omap3_beagle_devices,
+			ARRAY_SIZE(omap3_beagle_devices));
+	omap_display_init(&beagle_dss_data);
+	omap_serial_init();
+
+	omap_mux_init_gpio(170, OMAP_PIN_INPUT);
+	/* REVISIT leave DVI powered down until it's needed ... */
+	gpio_request_one(170, GPIOF_OUT_INIT_HIGH, "DVI_nPD");
+
+	usb_musb_init(NULL);
+	usbhs_init(&usbhs_bdata);
+	omap_nand_flash_init(NAND_BUSWIDTH_16, omap3beagle_nand_partitions,
+			     ARRAY_SIZE(omap3beagle_nand_partitions));
+
+	/* Ensure msecure is mux'd to be able to set the RTC. */
+	omap_mux_init_signal("sys_drm_msecure", OMAP_PIN_OFF_OUTPUT_HIGH);
+
+	/* Ensure SDRC pins are mux'd for self-refresh */
+	omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
+	omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
+
+	beagle_display_init();
+	beagle_opp_init();
+	of_platform_populate(NULL, omap_dt_match_table, NULL, NULL);
+}
+
+static const char *omap3_dt_match[] __initdata = {
+	"ti,omap3-beagle",
+	NULL
+};
+
+DT_MACHINE_START(OMAP3_DT, "TI OMAP3 (Flattened Device Tree)")
+	.boot_params	= 0x80000100,
+	.reserve	= omap_reserve,
+	.map_io		= omap3_map_io,
+	.init_early	= omap3_init_early,
+	.init_irq	= omap3_init_irq,
+	.init_machine	= omap3_init,
+	.timer		= &omap_timer,
+	.dt_compat	= omap3_dt_match,
+MACHINE_END
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index 213c4cd..7efb178 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -19,7 +19,6 @@
 #include <linux/err.h>
 #include <linux/clk.h>
 #include <linux/io.h>
-#include <linux/of_platform.h>
 #include <linux/leds.h>
 #include <linux/gpio.h>
 #include <linux/input.h>
@@ -422,9 +421,7 @@ static int __init omap3_beagle_i2c_init(void)
 	/* Bus 3 is attached to the DVI port where devices like the pico DLP
 	 * projector don't work reliably with 400kHz */
 	omap_register_i2c_bus(3, 100, beagle_i2c_eeprom, ARRAY_SIZE(beagle_i2c_eeprom));
-#ifdef CONFIG_OF
 	omap_register_i2c_bus(2, 100, NULL, 0);
-#endif /* CONFIG_OF */
 	return 0;
 }
 
@@ -567,10 +564,6 @@ static void __init beagle_opp_init(void)
 
 static void __init omap3_beagle_init(void)
 {
-#ifdef CONFIG_OF
-	of_platform_prepare(NULL, NULL);
-#endif /* CONFIG_OF */
-
 	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 	omap3_beagle_init_rev();
 	omap3_beagle_i2c_init();
@@ -599,11 +592,6 @@ static void __init omap3_beagle_init(void)
 	beagle_opp_init();
 }
 
-static const char *omap3_beagle_dt_match[] __initdata = {
-	"ti,omap3-beagle",
-	NULL
-};
-
 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
 	/* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
 	.boot_params	= 0x80000100,
@@ -613,5 +601,4 @@ MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
 	.init_irq	= omap3_beagle_init_irq,
 	.init_machine	= omap3_beagle_init,
 	.timer		= &omap_timer,
-	.dt_compat	= omap3_beagle_dt_match,
 MACHINE_END