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Commit 31e4001d authored by Tomasz Figa's avatar Tomasz Figa Committed by Kukjin Kim
Browse files

ARM: S3C64XX: Add board file for boot using Device Tree 



This patch adds board file that will be used to boot S3C64xx-based boards
using Device Tree.

Signed-off-by: default avatarTomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
parent 608f9737

arch/arm/mach-s3c64xx/Kconfig

+16 −0
Original line number Diff line number Diff line
@@ -306,3 +306,19 @@ config MACH_WLF_CRAGG_6410 
	select SAMSUNG_GPIO_EXTRA128

	help

	  Machine support for the Wolfson Cragganmore S3C6410 variant.



config MACH_S3C64XX_DT

	bool "Samsung S3C6400/S3C6410 machine using Device Tree"

	select CLKSRC_OF

	select CPU_S3C6400

	select CPU_S3C6410

	select PINCTRL

	select PINCTRL_S3C64XX

	select USE_OF

	help

	  Machine support for Samsung S3C6400/S3C6410 machines with Device Tree

	  enabled.

	  Select this if a fdt blob is available for your S3C64XX SoC based

	  board.

	  Note: This is under development and not all peripherals can be

	  supported with this machine file.

arch/arm/mach-s3c64xx/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -57,3 +57,4 @@ obj-$(CONFIG_MACH_SMARTQ7) += mach-smartq7.o 
obj-$(CONFIG_MACH_SMDK6400)		+= mach-smdk6400.o

obj-$(CONFIG_MACH_SMDK6410)		+= mach-smdk6410.o

obj-$(CONFIG_MACH_WLF_CRAGG_6410)	+= mach-crag6410.o mach-crag6410-module.o

obj-$(CONFIG_MACH_S3C64XX_DT)		+= mach-s3c64xx-dt.o

arch/arm/mach-s3c64xx/mach-s3c64xx-dt.c

0 → 100644
+85 −0
Original line number Diff line number Diff line 
/*

 * Samsung's S3C64XX flattened device tree enabled machine

 *

 * Copyright (c) 2013 Tomasz Figa <tomasz.figa@gmail.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/clk-provider.h>

#include <linux/irqchip.h>

#include <linux/of_platform.h>



#include <asm/mach/arch.h>

#include <asm/mach/map.h>

#include <asm/system_misc.h>



#include <plat/cpu.h>

#include <plat/watchdog-reset.h>



#include <mach/map.h>



#include "common.h"



/*

 * IO mapping for shared system controller IP.

 *

 * FIXME: Make remaining drivers use dynamic mapping.

 */

static struct map_desc s3c64xx_dt_iodesc[] __initdata = {

	{

		.virtual	= (unsigned long)S3C_VA_SYS,

		.pfn		= __phys_to_pfn(S3C64XX_PA_SYSCON),

		.length		= SZ_4K,

		.type		= MT_DEVICE,

	},

};



static void __init s3c64xx_dt_map_io(void)

{

	debug_ll_io_init();

	iotable_init(s3c64xx_dt_iodesc, ARRAY_SIZE(s3c64xx_dt_iodesc));



	s3c64xx_init_cpu();



	if (!soc_is_s3c64xx())

		panic("SoC is not S3C64xx!");

}



static void __init s3c64xx_dt_init_irq(void)

{

	of_clk_init(NULL);

	samsung_wdt_reset_of_init();

	irqchip_init();

};



static void __init s3c64xx_dt_init_machine(void)

{

	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);

}



static void s3c64xx_dt_restart(enum reboot_mode mode, const char *cmd)

{

	if (mode != REBOOT_SOFT)

		samsung_wdt_reset();



	/* if all else fails, or mode was for soft, jump to 0 */

	soft_restart(0);

}



static char const *s3c64xx_dt_compat[] __initdata = {

	"samsung,s3c6400",

	"samsung,s3c6410",

	NULL

};



DT_MACHINE_START(S3C6400_DT, "Samsung S3C64xx (Flattened Device Tree)")

	/* Maintainer: Tomasz Figa <tomasz.figa@gmail.com> */

	.dt_compat	= s3c64xx_dt_compat,

	.map_io		= s3c64xx_dt_map_io,

	.init_irq	= s3c64xx_dt_init_irq,

	.init_machine	= s3c64xx_dt_init_machine,

	.restart        = s3c64xx_dt_restart,

MACHINE_END