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Commit 5f7f6a4a authored by Kukjin Kim's avatar Kukjin Kim Committed by Ben Dooks
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ARM: S5P6442: Add Samsung S5P6442 CPU support 



This patch adds support for Samsung S5P6442 CPU. This patch also adds
an entry for S5P6442 cpu in plat-s5p cpu table.

Signed-off-by: default avatarAdityapratap Sharma <aditya.ps@samsung.com>
Signed-off-by: default avatarAtul Dahiya <atul.dahiya@samsung.com>
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
Signed-off-by: default avatarBen Dooks <ben-linux@fluff.org>
parent a0af8b3c

arch/arm/mach-s5p6442/Kconfig

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# arch/arm/mach-s5p6442/Kconfig

#

# Copyright (c) 2010 Samsung Electronics Co., Ltd.

#		http://www.samsung.com/

#

# Licensed under GPLv2



# Configuration options for the S5P6442



if ARCH_S5P6442



config CPU_S5P6442

	bool

	select PLAT_S5P

	help

	  Enable S5P6442 CPU support



config MACH_SMDK6442

	bool "SMDK6442"

	select CPU_S5P6442

	help

	  Machine support for Samsung SMDK6442



endif

arch/arm/mach-s5p6442/Makefile

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# arch/arm/mach-s5p6442/Makefile

#

# Copyright (c) 2010 Samsung Electronics Co., Ltd.

# 		http://www.samsung.com/

#

# Licensed under GPLv2



obj-y				:=

obj-m				:=

obj-n				:=

obj-				:=



# Core support for S5P6442 system



obj-$(CONFIG_CPU_S5P6442)	+= cpu.o init.o



# machine support

arch/arm/mach-s5p6442/Makefile.boot

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   zreladdr-y	:= 0x20008000

params_phys-y	:= 0x20000100

arch/arm/mach-s5p6442/cpu.c

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/* linux/arch/arm/mach-s5p6442/cpu.c

 *

 * Copyright (c) 2010 Samsung Electronics Co., Ltd.

 *		http://www.samsung.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/types.h>

#include <linux/interrupt.h>

#include <linux/list.h>

#include <linux/timer.h>

#include <linux/init.h>

#include <linux/clk.h>

#include <linux/io.h>

#include <linux/sysdev.h>

#include <linux/serial_core.h>

#include <linux/platform_device.h>



#include <asm/mach/arch.h>

#include <asm/mach/map.h>

#include <asm/mach/irq.h>



#include <asm/proc-fns.h>



#include <mach/hardware.h>

#include <mach/map.h>

#include <asm/irq.h>



#include <plat/regs-serial.h>

#include <mach/regs-clock.h>



#include <plat/cpu.h>

#include <plat/devs.h>

#include <plat/clock.h>

#include <plat/s5p6442.h>



/* Initial IO mappings */



static struct map_desc s5p6442_iodesc[] __initdata = {

	{

		.virtual	= (unsigned long)S5P_VA_SYSTIMER,

		.pfn		= __phys_to_pfn(S5P6442_PA_SYSTIMER),

		.length		= SZ_16K,

		.type		= MT_DEVICE,

	}, {

		.virtual	= (unsigned long)VA_VIC2,

		.pfn		= __phys_to_pfn(S5P6442_PA_VIC2),

		.length		= SZ_16K,

		.type		= MT_DEVICE,

	}

};



static void s5p6442_idle(void)

{

	if (!need_resched())

		cpu_do_idle();



	local_irq_enable();

}



/* s5p6442_map_io

 *

 * register the standard cpu IO areas

*/



void __init s5p6442_map_io(void)

{

	iotable_init(s5p6442_iodesc, ARRAY_SIZE(s5p6442_iodesc));

}



void __init s5p6442_init_clocks(int xtal)

{

	printk(KERN_DEBUG "%s: initializing clocks\n", __func__);



	s3c24xx_register_baseclocks(xtal);

	s5p_register_clocks(xtal);

	s5p6442_register_clocks();

	s5p6442_setup_clocks();

}



void __init s5p6442_init_irq(void)

{

	/* S5P6442 supports 3 VIC */

	u32 vic[3];



	/* VIC0, VIC1, and VIC2: some interrupt reserved */

	vic[0] = 0x7fefffff;

	vic[1] = 0X7f389c81;

	vic[2] = 0X1bbbcfff;



	s5p_init_irq(vic, ARRAY_SIZE(vic));

}



static struct sysdev_class s5p6442_sysclass = {

	.name	= "s5p6442-core",

};



static struct sys_device s5p6442_sysdev = {

	.cls	= &s5p6442_sysclass,

};



static int __init s5p6442_core_init(void)

{

	return sysdev_class_register(&s5p6442_sysclass);

}



core_initcall(s5p6442_core_init);



int __init s5p6442_init(void)

{

	printk(KERN_INFO "S5P6442: Initializing architecture\n");



	/* set idle function */

	pm_idle = s5p6442_idle;



	return sysdev_register(&s5p6442_sysdev);

}

arch/arm/mach-s5p6442/include/mach/debug-macro.S

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/* linux/arch/arm/mach-s5p6442/include/mach/debug-macro.S

 *

 * Copyright (c) 2010 Samsung Electronics Co., Ltd.

 *		http://www.samsung.com/

 *

 * Based on arch/arm/mach-s3c6400/include/mach/debug-macro.S

 *

 * 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.

*/



/* pull in the relevant register and map files. */



#include <mach/map.h>

#include <plat/regs-serial.h>



	.macro addruart, rx

		mrc	p15, 0, \rx, c1, c0

		tst	\rx, #1

		ldreq	\rx, = S3C_PA_UART

		ldrne	\rx, = S3C_VA_UART

#if CONFIG_DEBUG_S3C_UART != 0

		add	\rx, \rx, #(0x400 * CONFIG_DEBUG_S3C_UART)

#endif

	.endm



#define fifo_full fifo_full_s5pv210

#define fifo_level fifo_level_s5pv210



/* include the reset of the code which will do the work, we're only

 * compiling for a single cpu processor type so the default of s3c2440

 * will be fine with us.

 */



#include <plat/debug-macro.S>