linux/arch/arm/mach-omap2/board-generic.c

/*
 * Copyright (C) 2005 Nokia Corporation
 * Author: Paul Mundt <paul.mundt@nokia.com>
 *
 * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
 *
 * Modified from the original mach-omap/omap2/board-generic.c did by Paul
 * to support the OMAP2+ device tree boards with an unique board file.
 *
 * 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/io.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <linux/irqdomain.h>
#include <linux/clk.h>

#include <asm/mach/arch.h>

#include "common.h"
#include "common-board-devices.h"
#include "dss-common.h"

#if !(defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3))
#define intc_of_init	NULL
#endif
#ifndef CONFIG_ARCH_OMAP4
#define gic_of_init		NULL
#endif

static struct of_device_id omap_dt_match_table[] __initdata = {
	{ .compatible = "simple-bus", },
	{ .compatible = "ti,omap-infra", },
	{ }
};

/*
 * Create alias for USB host PHY clock.
 * Remove this when clock phandle can be provided via DT
 */
static void __init legacy_init_ehci_clk(char *clkname)
{
	int ret;

	ret = clk_add_alias("main_clk", NULL, clkname, NULL);
	if (ret) {
		pr_err("%s:Failed to add main_clk alias to %s :%d\n",
						__func__, clkname, ret);
	}
}

static void __init omap_generic_init(void)
{
	omap_sdrc_init(NULL, NULL);

	of_platform_populate(NULL, omap_dt_match_table, NULL, NULL);

	/*
	 * HACK: call display setup code for selected boards to enable omapdss.
	 * This will be removed when omapdss supports DT.
	 */
	if (of_machine_is_compatible("ti,omap4-panda")) {
		omap4_panda_display_init_of();
		legacy_init_ehci_clk("auxclk3_ck");

	}
	else if (of_machine_is_compatible("ti,omap4-sdp"))
		omap_4430sdp_display_init_of();
	else if (of_machine_is_compatible("ti,omap5-uevm"))
		legacy_init_ehci_clk("auxclk1_ck");
}

#ifdef CONFIG_SOC_OMAP2420
static const char *omap242x_boards_compat[] __initdata = {
	"ti,omap2420",
	NULL,
};

DT_MACHINE_START(OMAP242X_DT, "Generic OMAP2420 (Flattened Device Tree)")
	.reserve	= omap_reserve,
	.map_io		= omap242x_map_io,
	.init_early	= omap2420_init_early,
	.init_irq	= omap_intc_of_init,
	.handle_irq	= omap2_intc_handle_irq,
	.init_machine	= omap_generic_init,
	.init_time	= omap2_sync32k_timer_init,
	.dt_compat	= omap242x_boards_compat,
	.restart	= omap2xxx_restart,
MACHINE_END
#endif

#ifdef CONFIG_SOC_OMAP2430
static const char *omap243x_boards_compat[] __initdata = {
	"ti,omap2430",
	NULL,
};

DT_MACHINE_START(OMAP243X_DT, "Generic OMAP2430 (Flattened Device Tree)")
	.reserve	= omap_reserve,
	.map_io		= omap243x_map_io,
	.init_early	= omap2430_init_early,
	.init_irq	= omap_intc_of_init,
	.handle_irq	= omap2_intc_handle_irq,
	.init_machine	= omap_generic_init,
	.init_time	= omap2_sync32k_timer_init,
	.dt_compat	= omap243x_boards_compat,
	.restart	= omap2xxx_restart,
MACHINE_END
#endif

#ifdef CONFIG_ARCH_OMAP3
static const char *omap3_boards_compat[] __initdata = {
	"ti,omap3",
	NULL,
};

DT_MACHINE_START(OMAP3_DT, "Generic OMAP3 (Flattened Device Tree)")
	.reserve	= omap_reserve,
	.map_io		= omap3_map_io,
	.init_early	= omap3430_init_early,
	.init_irq	= omap_intc_of_init,
	.handle_irq	= omap3_intc_handle_irq,
	.init_machine	= omap_generic_init,
	.init_late	= omap3_init_late,
	.init_time	= omap3_sync32k_timer_init,
	.dt_compat	= omap3_boards_compat,
	.restart	= omap3xxx_restart,
MACHINE_END

static const char *omap3_gp_boards_compat[] __initdata = {
	"ti,omap3-beagle",
	"timll,omap3-devkit8000",
	NULL,
};

DT_MACHINE_START(OMAP3_GP_DT, "Generic OMAP3-GP (Flattened Device Tree)")
	.reserve	= omap_reserve,
	.map_io		= omap3_map_io,
	.init_early	= omap3430_init_early,
	.init_irq	= omap_intc_of_init,
	.handle_irq	= omap3_intc_handle_irq,
	.init_machine	= omap_generic_init,
	.init_late	= omap3_init_late,
	.init_time	= omap3_secure_sync32k_timer_init,
	.dt_compat	= omap3_gp_boards_compat,
	.restart	= omap3xxx_restart,
MACHINE_END
#endif

#ifdef CONFIG_SOC_AM33XX
static const char *am33xx_boards_compat[] __initdata = {
	"ti,am33xx",
	NULL,
};

DT_MACHINE_START(AM33XX_DT, "Generic AM33XX (Flattened Device Tree)")
	.reserve	= omap_reserve,
	.map_io		= am33xx_map_io,
	.init_early	= am33xx_init_early,
	.init_irq	= omap_intc_of_init,
	.handle_irq	= omap3_intc_handle_irq,
	.init_machine	= omap_generic_init,
	.init_time	= omap3_gptimer_timer_init,
	.dt_compat	= am33xx_boards_compat,
	.restart	= am33xx_restart,
MACHINE_END
#endif

#ifdef CONFIG_ARCH_OMAP4
static const char *omap4_boards_compat[] __initdata = {
	"ti,omap4",
	NULL,
};

DT_MACHINE_START(OMAP4_DT, "Generic OMAP4 (Flattened Device Tree)")
	.reserve	= omap_reserve,
	.smp		= smp_ops(omap4_smp_ops),
	.map_io		= omap4_map_io,
	.init_early	= omap4430_init_early,
	.init_irq	= omap_gic_of_init,
	.init_machine	= omap_generic_init,
	.init_late	= omap4430_init_late,
	.init_time	= omap4_local_timer_init,
	.dt_compat	= omap4_boards_compat,
	.restart	= omap44xx_restart,
MACHINE_END
#endif

#ifdef CONFIG_SOC_OMAP5
static const char *omap5_boards_compat[] __initdata = {
	"ti,omap5",
	NULL,
};

DT_MACHINE_START(OMAP5_DT, "Generic OMAP5 (Flattened Device Tree)")
	.reserve	= omap_reserve,
	.smp		= smp_ops(omap4_smp_ops),
	.map_io		= omap5_map_io,
	.init_early	= omap5_init_early,
	.init_irq	= omap_gic_of_init,
	.init_machine	= omap_generic_init,
	.init_time	= omap5_realtime_timer_init,
	.dt_compat	= omap5_boards_compat,
	.restart	= omap44xx_restart,
MACHINE_END
#endif

#ifdef CONFIG_SOC_AM43XX
static const char *am43_boards_compat[] __initdata = {
	"ti,am43",
	NULL,
};

DT_MACHINE_START(AM43_DT, "Generic AM43 (Flattened Device Tree)")
	.map_io		= am33xx_map_io,
	.init_early	= am43xx_init_early,
	.init_irq	= omap_gic_of_init,
	.init_machine	= omap_generic_init,
	.init_time	= omap3_sync32k_timer_init,
	.dt_compat	= am43_boards_compat,
MACHINE_END
#endif