[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / arm / mach-shark / core.c

/*
 *  linux/arch/arm/mach-shark/arch.c
 *
 *  Architecture specific stuff.
 */
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/sched.h>
#include <linux/serial_8250.h>
#include <linux/io.h>

#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/leds.h>
#include <asm/param.h>

#include <asm/mach/map.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>

static struct plat_serial8250_port serial_platform_data[] = {
	{
		.iobase		= 0x3f8,
		.irq		= 4,
		.uartclk	= 1843200,
		.regshift	= 0,
		.iotype		= UPIO_PORT,
		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
	},
	{
		.iobase		= 0x2f8,
		.irq		= 3,
		.uartclk	= 1843200,
		.regshift	= 0,
		.iotype		= UPIO_PORT,
		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
	},
	{ },
};

static struct platform_device serial_device = {
	.name			= "serial8250",
	.id			= PLAT8250_DEV_PLATFORM,
	.dev			= {
		.platform_data	= serial_platform_data,
	},
};

static int __init shark_init(void)
{
	int ret;

	if (machine_is_shark())
		ret = platform_device_register(&serial_device);

	return ret;
}

arch_initcall(shark_init);

extern void shark_init_irq(void);

static struct map_desc shark_io_desc[] __initdata = {
	{
		.virtual	= IO_BASE,
		.pfn		= __phys_to_pfn(IO_START),
		.length		= IO_SIZE,
		.type		= MT_DEVICE
	}
};

static void __init shark_map_io(void)
{
	iotable_init(shark_io_desc, ARRAY_SIZE(shark_io_desc));
}

#define IRQ_TIMER 0
#define HZ_TIME ((1193180 + HZ/2) / HZ)

static irqreturn_t
shark_timer_interrupt(int irq, void *dev_id)
{
	timer_tick();
	return IRQ_HANDLED;
}

static struct irqaction shark_timer_irq = {
	.name		= "Shark Timer Tick",
	.flags		= IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
	.handler	= shark_timer_interrupt,
};

/*
 * Set up timer interrupt, and return the current time in seconds.
 */
static void __init shark_timer_init(void)
{
	outb(0x34, 0x43);               /* binary, mode 0, LSB/MSB, Ch 0 */
	outb(HZ_TIME & 0xff, 0x40);     /* LSB of count */
	outb(HZ_TIME >> 8, 0x40);

	setup_irq(IRQ_TIMER, &shark_timer_irq);
}

static struct sys_timer shark_timer = {
	.init		= shark_timer_init,
};

MACHINE_START(SHARK, "Shark")
	/* Maintainer: Alexander Schulz */
	.phys_io	= 0x40000000,
	.io_pg_offst	= ((0xe0000000) >> 18) & 0xfffc,
	.boot_params	= 0x08003000,
	.map_io		= shark_map_io,
	.init_irq	= shark_init_irq,
	.timer		= &shark_timer,
MACHINE_END
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/arch/arm/mach-shark/arch.c
	3	*
	4	* Architecture specific stuff.
	5	*/
	6	#include <linux/kernel.h>
	7	#include <linux/init.h>
	8	#include <linux/interrupt.h>
5a67b777	9	#include <linux/irq.h>
1da177e4 LT	10	#include <linux/sched.h>
1da177e4 LT	11	#include <linux/serial_8250.h>
fced80c7	12	#include <linux/io.h>
1da177e4 LT	13
	14	#include <asm/setup.h>
	15	#include <asm/mach-types.h>
1da177e4 LT	16	#include <asm/leds.h>
	17	#include <asm/param.h>
	18
	19	#include <asm/mach/map.h>
	20	#include <asm/mach/arch.h>
	21	#include <asm/mach/time.h>
	22
	23	static struct plat_serial8250_port serial_platform_data[] = {
	24	{
	25	.iobase = 0x3f8,
	26	.irq = 4,
	27	.uartclk = 1843200,
b7523418	28	.regshift = 0,
1da177e4 LT	29	.iotype = UPIO_PORT,
	30	.flags = UPF_BOOT_AUTOCONF \| UPF_SKIP_TEST,
	31	},
	32	{
	33	.iobase = 0x2f8,
	34	.irq = 3,
	35	.uartclk = 1843200,
b7523418	36	.regshift = 0,
1da177e4 LT	37	.iotype = UPIO_PORT,
	38	.flags = UPF_BOOT_AUTOCONF \| UPF_SKIP_TEST,
	39	},
	40	{ },
	41	};
	42
	43	static struct platform_device serial_device = {
	44	.name = "serial8250",
6df29deb	45	.id = PLAT8250_DEV_PLATFORM,
1da177e4 LT	46	.dev = {
	47	.platform_data = serial_platform_data,
	48	},
	49	};
	50
	51	static int __init shark_init(void)
	52	{
	53	int ret;
	54
	55	if (machine_is_shark())
	56	ret = platform_device_register(&serial_device);
	57
	58	return ret;
	59	}
	60
	61	arch_initcall(shark_init);
	62
	63	extern void shark_init_irq(void);
	64
	65	static struct map_desc shark_io_desc[] __initdata = {
cd5fc8bf DS	66	{
	67	.virtual = IO_BASE,
	68	.pfn = __phys_to_pfn(IO_START),
	69	.length = IO_SIZE,
	70	.type = MT_DEVICE
	71	}
1da177e4 LT	72	};
	73
	74	static void __init shark_map_io(void)
	75	{
	76	iotable_init(shark_io_desc, ARRAY_SIZE(shark_io_desc));
	77	}
	78
	79	#define IRQ_TIMER 0
	80	#define HZ_TIME ((1193180 + HZ/2) / HZ)
	81
	82	static irqreturn_t
0cd61b68	83	shark_timer_interrupt(int irq, void *dev_id)
1da177e4	84	{
0cd61b68	85	timer_tick();
1da177e4 LT	86	return IRQ_HANDLED;
	87	}
	88
	89	static struct irqaction shark_timer_irq = {
	90	.name = "Shark Timer Tick",
b30fabad	91	.flags = IRQF_DISABLED \| IRQF_TIMER \| IRQF_IRQPOLL,
09b8b5f8	92	.handler = shark_timer_interrupt,
1da177e4 LT	93	};
	94
	95	/*
	96	* Set up timer interrupt, and return the current time in seconds.
	97	*/
	98	static void __init shark_timer_init(void)
	99	{
	100	outb(0x34, 0x43); /* binary, mode 0, LSB/MSB, Ch 0 */
	101	outb(HZ_TIME & 0xff, 0x40); /* LSB of count */
	102	outb(HZ_TIME >> 8, 0x40);
	103
	104	setup_irq(IRQ_TIMER, &shark_timer_irq);
	105	}
	106
	107	static struct sys_timer shark_timer = {
	108	.init = shark_timer_init,
	109	};
	110
	111	MACHINE_START(SHARK, "Shark")
e9dea0c6	112	/* Maintainer: Alexander Schulz */
e9dea0c6 RK	113	.phys_io = 0x40000000,
	114	.io_pg_offst = ((0xe0000000) >> 18) & 0xfffc,
	115	.boot_params = 0x08003000,
	116	.map_io = shark_map_io,
	117	.init_irq = shark_init_irq,
1da177e4 LT	118	.timer = &shark_timer,
1da177e4 LT	119	MACHINE_END