[linux-2.6-block.git] / arch / arm / mach-mmp / common.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 *  linux/arch/arm/mach-mmp/common.c
 *
 *  Code common to PXA168 processor lines
 */

#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>

#include <asm/page.h>
#include <asm/mach/map.h>
#include <asm/system_misc.h>
#include "addr-map.h"
#include "cputype.h"

#include "common.h"

#define MMP_CHIPID	(AXI_VIRT_BASE + 0x82c00)

unsigned int mmp_chip_id;
EXPORT_SYMBOL(mmp_chip_id);

static struct map_desc standard_io_desc[] __initdata = {
	{
		.pfn		= __phys_to_pfn(APB_PHYS_BASE),
		.virtual	= (unsigned long)APB_VIRT_BASE,
		.length		= APB_PHYS_SIZE,
		.type		= MT_DEVICE,
	}, {
		.pfn		= __phys_to_pfn(AXI_PHYS_BASE),
		.virtual	= (unsigned long)AXI_VIRT_BASE,
		.length		= AXI_PHYS_SIZE,
		.type		= MT_DEVICE,
	},
};

void __init mmp_map_io(void)
{
	iotable_init(standard_io_desc, ARRAY_SIZE(standard_io_desc));

	/* this is early, initialize mmp_chip_id here */
	mmp_chip_id = __raw_readl(MMP_CHIPID);
}

void mmp_restart(enum reboot_mode mode, const char *cmd)
{
	soft_restart(0);
}
Commit	Line	Data
d2912cb1	1	// SPDX-License-Identifier: GPL-2.0-only
49cbe786 EM	2	/*
	3	* linux/arch/arm/mach-mmp/common.c
	4	*
	5	* Code common to PXA168 processor lines
49cbe786 EM	6	*/
	7
	8	#include <linux/init.h>
	9	#include <linux/kernel.h>
f090c74b	10	#include <linux/module.h>
49cbe786 EM	11
	12	#include <asm/page.h>
	13	#include <asm/mach/map.h>
9f97da78	14	#include <asm/system_misc.h>
b501fd7b AB	15	#include "addr-map.h"
b501fd7b AB	16	#include "cputype.h"
49cbe786 EM	17
	18	#include "common.h"
	19
f090c74b HZ	20	#define MMP_CHIPID (AXI_VIRT_BASE + 0x82c00)
	21
	22	unsigned int mmp_chip_id;
	23	EXPORT_SYMBOL(mmp_chip_id);
	24
49cbe786 EM	25	static struct map_desc standard_io_desc[] __initdata = {
	26	{
	27	.pfn = __phys_to_pfn(APB_PHYS_BASE),
97b09da4	28	.virtual = (unsigned long)APB_VIRT_BASE,
49cbe786 EM	29	.length = APB_PHYS_SIZE,
	30	.type = MT_DEVICE,
	31	}, {
	32	.pfn = __phys_to_pfn(AXI_PHYS_BASE),
97b09da4	33	.virtual = (unsigned long)AXI_VIRT_BASE,
49cbe786 EM	34	.length = AXI_PHYS_SIZE,
	35	.type = MT_DEVICE,
	36	},
	37	};
	38
8022887c	39	void __init mmp_map_io(void)
49cbe786 EM	40	{
49cbe786 EM	41	iotable_init(standard_io_desc, ARRAY_SIZE(standard_io_desc));
f090c74b HZ	42
	43	/* this is early, initialize mmp_chip_id here */
	44	mmp_chip_id = __raw_readl(MMP_CHIPID);
49cbe786	45	}
9854a38e	46
7b6d864b	47	void mmp_restart(enum reboot_mode mode, const char *cmd)
9854a38e RK	48	{
	49	soft_restart(0);
	50	}