[deliverable/linux.git] / arch / arm / mach-pxa / pxa25x.c

/*
 *  linux/arch/arm/mach-pxa/pxa25x.c
 *
 *  Author:	Nicolas Pitre
 *  Created:	Jun 15, 2001
 *  Copyright:	MontaVista Software Inc.
 *
 * Code specific to PXA21x/25x/26x variants.
 *
 * 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.
 *
 * Since this file should be linked before any other machine specific file,
 * the __initcall() here will be executed first.  This serves as default
 * initialization stuff for PXA machines which can be overridden later if
 * need be.
 */
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/suspend.h>
#include <linux/sysdev.h>

#include <asm/mach/map.h>
#include <mach/hardware.h>
#include <mach/irqs.h>
#include <mach/gpio.h>
#include <mach/pxa25x.h>
#include <mach/reset.h>
#include <mach/pm.h>
#include <mach/dma.h>
#include <mach/smemc.h>

#include "generic.h"
#include "devices.h"
#include "clock.h"

/*
 * Various clock factors driven by the CCCR register.
 */

/* Crystal Frequency to Memory Frequency Multiplier (L) */
static unsigned char L_clk_mult[32] = { 0, 27, 32, 36, 40, 45, 0, };

/* Memory Frequency to Run Mode Frequency Multiplier (M) */
static unsigned char M_clk_mult[4] = { 0, 1, 2, 4 };

/* Run Mode Frequency to Turbo Mode Frequency Multiplier (N) */
/* Note: we store the value N * 2 here. */
static unsigned char N2_clk_mult[8] = { 0, 0, 2, 3, 4, 0, 6, 0 };

/* Crystal clock */
#define BASE_CLK	3686400

/*
 * Get the clock frequency as reflected by CCCR and the turbo flag.
 * We assume these values have been applied via a fcs.
 * If info is not 0 we also display the current settings.
 */
unsigned int pxa25x_get_clk_frequency_khz(int info)
{
	unsigned long cccr, turbo;
	unsigned int l, L, m, M, n2, N;

	cccr = CCCR;
	asm( "mrc\tp14, 0, %0, c6, c0, 0" : "=r" (turbo) );

	l  =  L_clk_mult[(cccr >> 0) & 0x1f];
	m  =  M_clk_mult[(cccr >> 5) & 0x03];
	n2 = N2_clk_mult[(cccr >> 7) & 0x07];

	L = l * BASE_CLK;
	M = m * L;
	N = n2 * M / 2;

	if(info)
	{
		L += 5000;
		printk( KERN_INFO "Memory clock: %d.%02dMHz (*%d)\n",
			L / 1000000, (L % 1000000) / 10000, l );
		M += 5000;
		printk( KERN_INFO "Run Mode clock: %d.%02dMHz (*%d)\n",
			M / 1000000, (M % 1000000) / 10000, m );
		N += 5000;
		printk( KERN_INFO "Turbo Mode clock: %d.%02dMHz (*%d.%d, %sactive)\n",
			N / 1000000, (N % 1000000) / 10000, n2 / 2, (n2 % 2) * 5,
			(turbo & 1) ? "" : "in" );
	}

	return (turbo & 1) ? (N/1000) : (M/1000);
}

/*
 * Return the current memory clock frequency in units of 10kHz
 */
unsigned int pxa25x_get_memclk_frequency_10khz(void)
{
	return L_clk_mult[(CCCR >> 0) & 0x1f] * BASE_CLK / 10000;
}

static unsigned long clk_pxa25x_lcd_getrate(struct clk *clk)
{
	return pxa25x_get_memclk_frequency_10khz() * 10000;
}

static const struct clkops clk_pxa25x_lcd_ops = {
	.enable		= clk_pxa2xx_cken_enable,
	.disable	= clk_pxa2xx_cken_disable,
	.getrate	= clk_pxa25x_lcd_getrate,
};

static unsigned long gpio12_config_32k[] = {
	GPIO12_32KHz,
};

static unsigned long gpio12_config_gpio[] = {
	GPIO12_GPIO,
};

static void clk_gpio12_enable(struct clk *clk)
{
	pxa2xx_mfp_config(gpio12_config_32k, 1);
}

static void clk_gpio12_disable(struct clk *clk)
{
	pxa2xx_mfp_config(gpio12_config_gpio, 1);
}

static const struct clkops clk_pxa25x_gpio12_ops = {
	.enable         = clk_gpio12_enable,
	.disable        = clk_gpio12_disable,
};

static unsigned long gpio11_config_3m6[] = {
	GPIO11_3_6MHz,
};

static unsigned long gpio11_config_gpio[] = {
	GPIO11_GPIO,
};

static void clk_gpio11_enable(struct clk *clk)
{
	pxa2xx_mfp_config(gpio11_config_3m6, 1);
}

static void clk_gpio11_disable(struct clk *clk)
{
	pxa2xx_mfp_config(gpio11_config_gpio, 1);
}

static const struct clkops clk_pxa25x_gpio11_ops = {
	.enable         = clk_gpio11_enable,
	.disable        = clk_gpio11_disable,
};

/*
 * 3.6864MHz -> OST, GPIO, SSP, PWM, PLLs (95.842MHz, 147.456MHz)
 * 95.842MHz -> MMC 19.169MHz, I2C 31.949MHz, FICP 47.923MHz, USB 47.923MHz
 * 147.456MHz -> UART 14.7456MHz, AC97 12.288MHz, I2S 5.672MHz (allegedly)
 */

/*
 * PXA 2xx clock declarations.
 */
static DEFINE_PXA2_CKEN(pxa25x_hwuart, HWUART, 14745600, 1);
static DEFINE_PXA2_CKEN(pxa25x_ffuart, FFUART, 14745600, 1);
static DEFINE_PXA2_CKEN(pxa25x_btuart, BTUART, 14745600, 1);
static DEFINE_PXA2_CKEN(pxa25x_stuart, STUART, 14745600, 1);
static DEFINE_PXA2_CKEN(pxa25x_usb, USB, 47923000, 5);
static DEFINE_PXA2_CKEN(pxa25x_mmc, MMC, 19169000, 0);
static DEFINE_PXA2_CKEN(pxa25x_i2c, I2C, 31949000, 0);
static DEFINE_PXA2_CKEN(pxa25x_ssp, SSP, 3686400, 0);
static DEFINE_PXA2_CKEN(pxa25x_nssp, NSSP, 3686400, 0);
static DEFINE_PXA2_CKEN(pxa25x_assp, ASSP, 3686400, 0);
static DEFINE_PXA2_CKEN(pxa25x_pwm0, PWM0, 3686400, 0);
static DEFINE_PXA2_CKEN(pxa25x_pwm1, PWM1, 3686400, 0);
static DEFINE_PXA2_CKEN(pxa25x_ac97, AC97, 24576000, 0);
static DEFINE_PXA2_CKEN(pxa25x_i2s, I2S, 14745600, 0);
static DEFINE_PXA2_CKEN(pxa25x_ficp, FICP, 47923000, 0);

static DEFINE_CK(pxa25x_lcd, LCD, &clk_pxa25x_lcd_ops);
static DEFINE_CLK(pxa25x_gpio11, &clk_pxa25x_gpio11_ops, 3686400, 0);
static DEFINE_CLK(pxa25x_gpio12, &clk_pxa25x_gpio12_ops, 32768, 0);

static struct clk_lookup pxa25x_clkregs[] = {
	INIT_CLKREG(&clk_pxa25x_lcd, "pxa2xx-fb", NULL),
	INIT_CLKREG(&clk_pxa25x_ffuart, "pxa2xx-uart.0", NULL),
	INIT_CLKREG(&clk_pxa25x_btuart, "pxa2xx-uart.1", NULL),
	INIT_CLKREG(&clk_pxa25x_stuart, "pxa2xx-uart.2", NULL),
	INIT_CLKREG(&clk_pxa25x_usb, "pxa25x-udc", NULL),
	INIT_CLKREG(&clk_pxa25x_mmc, "pxa2xx-mci.0", NULL),
	INIT_CLKREG(&clk_pxa25x_i2c, "pxa2xx-i2c.0", NULL),
	INIT_CLKREG(&clk_pxa25x_ssp, "pxa25x-ssp.0", NULL),
	INIT_CLKREG(&clk_pxa25x_nssp, "pxa25x-nssp.1", NULL),
	INIT_CLKREG(&clk_pxa25x_assp, "pxa25x-nssp.2", NULL),
	INIT_CLKREG(&clk_pxa25x_pwm0, "pxa25x-pwm.0", NULL),
	INIT_CLKREG(&clk_pxa25x_pwm1, "pxa25x-pwm.1", NULL),
	INIT_CLKREG(&clk_pxa25x_i2s, "pxa2xx-i2s", NULL),
	INIT_CLKREG(&clk_pxa25x_stuart, "pxa2xx-ir", "UARTCLK"),
	INIT_CLKREG(&clk_pxa25x_ficp, "pxa2xx-ir", "FICPCLK"),
	INIT_CLKREG(&clk_pxa25x_ac97, NULL, "AC97CLK"),
	INIT_CLKREG(&clk_pxa25x_gpio11, NULL, "GPIO11_CLK"),
	INIT_CLKREG(&clk_pxa25x_gpio12, NULL, "GPIO12_CLK"),
};

static struct clk_lookup pxa25x_hwuart_clkreg =
	INIT_CLKREG(&clk_pxa25x_hwuart, "pxa2xx-uart.3", NULL);

#ifdef CONFIG_PM

#define SAVE(x)		sleep_save[SLEEP_SAVE_##x] = x
#define RESTORE(x)	x = sleep_save[SLEEP_SAVE_##x]

/*
 * List of global PXA peripheral registers to preserve.
 * More ones like CP and general purpose register values are preserved
 * with the stack pointer in sleep.S.
 */
enum {
	SLEEP_SAVE_PSTR,
	SLEEP_SAVE_CKEN,
	SLEEP_SAVE_COUNT
};


static void pxa25x_cpu_pm_save(unsigned long *sleep_save)
{
	SAVE(CKEN);
	SAVE(PSTR);
}

static void pxa25x_cpu_pm_restore(unsigned long *sleep_save)
{
	RESTORE(CKEN);
	RESTORE(PSTR);
}

static void pxa25x_cpu_pm_enter(suspend_state_t state)
{
	/* Clear reset status */
	RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR;

	switch (state) {
	case PM_SUSPEND_MEM:
		pxa25x_cpu_suspend(PWRMODE_SLEEP);
		break;
	}
}

static int pxa25x_cpu_pm_prepare(void)
{
	/* set resume return address */
	PSPR = virt_to_phys(pxa_cpu_resume);
	return 0;
}

static void pxa25x_cpu_pm_finish(void)
{
	/* ensure not to come back here if it wasn't intended */
	PSPR = 0;
}

static struct pxa_cpu_pm_fns pxa25x_cpu_pm_fns = {
	.save_count	= SLEEP_SAVE_COUNT,
	.valid		= suspend_valid_only_mem,
	.save		= pxa25x_cpu_pm_save,
	.restore	= pxa25x_cpu_pm_restore,
	.enter		= pxa25x_cpu_pm_enter,
	.prepare	= pxa25x_cpu_pm_prepare,
	.finish		= pxa25x_cpu_pm_finish,
};

static void __init pxa25x_init_pm(void)
{
	pxa_cpu_pm_fns = &pxa25x_cpu_pm_fns;
}
#else
static inline void pxa25x_init_pm(void) {}
#endif

/* PXA25x: supports wakeup from GPIO0..GPIO15 and RTC alarm
 */

static int pxa25x_set_wake(unsigned int irq, unsigned int on)
{
	int gpio = IRQ_TO_GPIO(irq);
	uint32_t mask = 0;

	if (gpio >= 0 && gpio < 85)
		return gpio_set_wake(gpio, on);

	if (irq == IRQ_RTCAlrm) {
		mask = PWER_RTC;
		goto set_pwer;
	}

	return -EINVAL;

set_pwer:
	if (on)
		PWER |= mask;
	else
		PWER &=~mask;

	return 0;
}

void __init pxa25x_init_irq(void)
{
	pxa_init_irq(32, pxa25x_set_wake);
	pxa_init_gpio(IRQ_GPIO_2_x, 2, 84, pxa25x_set_wake);
}

#ifdef CONFIG_CPU_PXA26x
void __init pxa26x_init_irq(void)
{
	pxa_init_irq(32, pxa25x_set_wake);
	pxa_init_gpio(IRQ_GPIO_2_x, 2, 89, pxa25x_set_wake);
}
#endif

static struct map_desc pxa25x_io_desc[] __initdata = {
	{	/* Mem Ctl */
		.virtual	= SMEMC_VIRT,
		.pfn		= __phys_to_pfn(PXA2XX_SMEMC_BASE),
		.length		= 0x00200000,
		.type		= MT_DEVICE
	},
};

void __init pxa25x_map_io(void)
{
	pxa_map_io();
	iotable_init(ARRAY_AND_SIZE(pxa25x_io_desc));
	pxa25x_get_clk_frequency_khz(1);
}

static struct platform_device *pxa25x_devices[] __initdata = {
	&pxa25x_device_udc,
	&pxa_device_pmu,
	&pxa_device_i2s,
	&sa1100_device_rtc,
	&pxa25x_device_ssp,
	&pxa25x_device_nssp,
	&pxa25x_device_assp,
	&pxa25x_device_pwm0,
	&pxa25x_device_pwm1,
};

static struct sys_device pxa25x_sysdev[] = {
	{
		.cls	= &pxa_irq_sysclass,
	}, {
		.cls	= &pxa2xx_mfp_sysclass,
	}, {
		.cls	= &pxa_gpio_sysclass,
	},
};

static int __init pxa25x_init(void)
{
	int i, ret = 0;

	if (cpu_is_pxa25x()) {

		reset_status = RCSR;

		clkdev_add_table(pxa25x_clkregs, ARRAY_SIZE(pxa25x_clkregs));

		if ((ret = pxa_init_dma(IRQ_DMA, 16)))
			return ret;

		pxa25x_init_pm();

		for (i = 0; i < ARRAY_SIZE(pxa25x_sysdev); i++) {
			ret = sysdev_register(&pxa25x_sysdev[i]);
			if (ret)
				pr_err("failed to register sysdev[%d]\n", i);
		}

		ret = platform_add_devices(pxa25x_devices,
					   ARRAY_SIZE(pxa25x_devices));
		if (ret)
			return ret;
	}

	/* Only add HWUART for PXA255/26x; PXA210/250 do not have it. */
	if (cpu_is_pxa255())
		clkdev_add(&pxa25x_hwuart_clkreg);

	return ret;
}

postcore_initcall(pxa25x_init);
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/arch/arm/mach-pxa/pxa25x.c
	3	*
	4	* Author: Nicolas Pitre
	5	* Created: Jun 15, 2001
	6	* Copyright: MontaVista Software Inc.
	7	*
	8	* Code specific to PXA21x/25x/26x variants.
	9	*
	10	* This program is free software; you can redistribute it and/or modify
	11	* it under the terms of the GNU General Public License version 2 as
	12	* published by the Free Software Foundation.
	13	*
	14	* Since this file should be linked before any other machine specific file,
	15	* the __initcall() here will be executed first. This serves as default
	16	* initialization stuff for PXA machines which can be overridden later if
	17	* need be.
	18	*/
	19	#include <linux/module.h>
	20	#include <linux/kernel.h>
	21	#include <linux/init.h>
34f3231f	22	#include <linux/platform_device.h>
95d9ffbe	23	#include <linux/suspend.h>
c0165504	24	#include <linux/sysdev.h>
1da177e4	25
851982c1	26	#include <asm/mach/map.h>
a09e64fb RK	27	#include <mach/hardware.h>
a09e64fb RK	28	#include <mach/irqs.h>
a58fbcd8	29	#include <mach/gpio.h>
51c62982	30	#include <mach/pxa25x.h>
afd2fc02	31	#include <mach/reset.h>
a09e64fb RK	32	#include <mach/pm.h>
a09e64fb RK	33	#include <mach/dma.h>
ad68bb9f	34	#include <mach/smemc.h>
1da177e4 LT	35
1da177e4 LT	36	#include "generic.h"
46c41e62	37	#include "devices.h"
a6dba20c	38	#include "clock.h"
1da177e4 LT	39
	40	/*
	41	* Various clock factors driven by the CCCR register.
	42	*/
	43
	44	/* Crystal Frequency to Memory Frequency Multiplier (L) */
	45	static unsigned char L_clk_mult[32] = { 0, 27, 32, 36, 40, 45, 0, };
	46
	47	/* Memory Frequency to Run Mode Frequency Multiplier (M) */
	48	static unsigned char M_clk_mult[4] = { 0, 1, 2, 4 };
	49
	50	/* Run Mode Frequency to Turbo Mode Frequency Multiplier (N) */
	51	/* Note: we store the value N * 2 here. */
	52	static unsigned char N2_clk_mult[8] = { 0, 0, 2, 3, 4, 0, 6, 0 };
	53
	54	/* Crystal clock */
	55	#define BASE_CLK 3686400
	56
	57	/*
	58	* Get the clock frequency as reflected by CCCR and the turbo flag.
	59	* We assume these values have been applied via a fcs.
	60	* If info is not 0 we also display the current settings.
	61	*/
15a40333	62	unsigned int pxa25x_get_clk_frequency_khz(int info)
1da177e4 LT	63	{
	64	unsigned long cccr, turbo;
	65	unsigned int l, L, m, M, n2, N;
	66
	67	cccr = CCCR;
	68	asm( "mrc\tp14, 0, %0, c6, c0, 0" : "=r" (turbo) );
	69
	70	l = L_clk_mult[(cccr >> 0) & 0x1f];
	71	m = M_clk_mult[(cccr >> 5) & 0x03];
	72	n2 = N2_clk_mult[(cccr >> 7) & 0x07];
	73
	74	L = l * BASE_CLK;
	75	M = m * L;
	76	N = n2 * M / 2;
	77
	78	if(info)
	79	{
	80	L += 5000;
	81	printk( KERN_INFO "Memory clock: %d.%02dMHz (*%d)\n",
	82	L / 1000000, (L % 1000000) / 10000, l );
	83	M += 5000;
	84	printk( KERN_INFO "Run Mode clock: %d.%02dMHz (*%d)\n",
	85	M / 1000000, (M % 1000000) / 10000, m );
	86	N += 5000;
	87	printk( KERN_INFO "Turbo Mode clock: %d.%02dMHz (*%d.%d, %sactive)\n",
	88	N / 1000000, (N % 1000000) / 10000, n2 / 2, (n2 % 2) * 5,
	89	(turbo & 1) ? "" : "in" );
	90	}
	91
	92	return (turbo & 1) ? (N/1000) : (M/1000);
	93	}
	94
1da177e4 LT	95	/*
	96	* Return the current memory clock frequency in units of 10kHz
	97	*/
15a40333	98	unsigned int pxa25x_get_memclk_frequency_10khz(void)
1da177e4 LT	99	{
	100	return L_clk_mult[(CCCR >> 0) & 0x1f] * BASE_CLK / 10000;
	101	}
	102
a6dba20c RK	103	static unsigned long clk_pxa25x_lcd_getrate(struct clk *clk)
	104	{
	105	return pxa25x_get_memclk_frequency_10khz() * 10000;
	106	}
	107
	108	static const struct clkops clk_pxa25x_lcd_ops = {
4029813c EM	109	.enable = clk_pxa2xx_cken_enable,
4029813c EM	110	.disable = clk_pxa2xx_cken_disable,
a6dba20c RK	111	.getrate = clk_pxa25x_lcd_getrate,
	112	};
	113
ed847782 IM	114	static unsigned long gpio12_config_32k[] = {
	115	GPIO12_32KHz,
	116	};
	117
	118	static unsigned long gpio12_config_gpio[] = {
	119	GPIO12_GPIO,
	120	};
	121
	122	static void clk_gpio12_enable(struct clk *clk)
	123	{
	124	pxa2xx_mfp_config(gpio12_config_32k, 1);
	125	}
	126
	127	static void clk_gpio12_disable(struct clk *clk)
	128	{
	129	pxa2xx_mfp_config(gpio12_config_gpio, 1);
	130	}
	131
	132	static const struct clkops clk_pxa25x_gpio12_ops = {
	133	.enable = clk_gpio12_enable,
	134	.disable = clk_gpio12_disable,
	135	};
	136
13f75582 IM	137	static unsigned long gpio11_config_3m6[] = {
	138	GPIO11_3_6MHz,
	139	};
	140
	141	static unsigned long gpio11_config_gpio[] = {
	142	GPIO11_GPIO,
	143	};
	144
	145	static void clk_gpio11_enable(struct clk *clk)
	146	{
	147	pxa2xx_mfp_config(gpio11_config_3m6, 1);
	148	}
	149
	150	static void clk_gpio11_disable(struct clk *clk)
	151	{
	152	pxa2xx_mfp_config(gpio11_config_gpio, 1);
	153	}
	154
	155	static const struct clkops clk_pxa25x_gpio11_ops = {
	156	.enable = clk_gpio11_enable,
	157	.disable = clk_gpio11_disable,
	158	};
	159
a6dba20c RK	160	/*
	161	* 3.6864MHz -> OST, GPIO, SSP, PWM, PLLs (95.842MHz, 147.456MHz)
	162	* 95.842MHz -> MMC 19.169MHz, I2C 31.949MHz, FICP 47.923MHz, USB 47.923MHz
	163	* 147.456MHz -> UART 14.7456MHz, AC97 12.288MHz, I2S 5.672MHz (allegedly)
	164	*/
e01dbdb4	165
bdb08cb2	166	/*
c1ed406c	167	* PXA 2xx clock declarations.
bdb08cb2	168	*/
4029813c EM	169	static DEFINE_PXA2_CKEN(pxa25x_hwuart, HWUART, 14745600, 1);
	170	static DEFINE_PXA2_CKEN(pxa25x_ffuart, FFUART, 14745600, 1);
	171	static DEFINE_PXA2_CKEN(pxa25x_btuart, BTUART, 14745600, 1);
	172	static DEFINE_PXA2_CKEN(pxa25x_stuart, STUART, 14745600, 1);
	173	static DEFINE_PXA2_CKEN(pxa25x_usb, USB, 47923000, 5);
	174	static DEFINE_PXA2_CKEN(pxa25x_mmc, MMC, 19169000, 0);
	175	static DEFINE_PXA2_CKEN(pxa25x_i2c, I2C, 31949000, 0);
	176	static DEFINE_PXA2_CKEN(pxa25x_ssp, SSP, 3686400, 0);
	177	static DEFINE_PXA2_CKEN(pxa25x_nssp, NSSP, 3686400, 0);
	178	static DEFINE_PXA2_CKEN(pxa25x_assp, ASSP, 3686400, 0);
	179	static DEFINE_PXA2_CKEN(pxa25x_pwm0, PWM0, 3686400, 0);
	180	static DEFINE_PXA2_CKEN(pxa25x_pwm1, PWM1, 3686400, 0);
	181	static DEFINE_PXA2_CKEN(pxa25x_ac97, AC97, 24576000, 0);
	182	static DEFINE_PXA2_CKEN(pxa25x_i2s, I2S, 14745600, 0);
	183	static DEFINE_PXA2_CKEN(pxa25x_ficp, FICP, 47923000, 0);
	184
8c3abc7d	185	static DEFINE_CK(pxa25x_lcd, LCD, &clk_pxa25x_lcd_ops);
8c3abc7d RK	186	static DEFINE_CLK(pxa25x_gpio11, &clk_pxa25x_gpio11_ops, 3686400, 0);
8c3abc7d RK	187	static DEFINE_CLK(pxa25x_gpio12, &clk_pxa25x_gpio12_ops, 32768, 0);
8c3abc7d RK	188
	189	static struct clk_lookup pxa25x_clkregs[] = {
	190	INIT_CLKREG(&clk_pxa25x_lcd, "pxa2xx-fb", NULL),
	191	INIT_CLKREG(&clk_pxa25x_ffuart, "pxa2xx-uart.0", NULL),
	192	INIT_CLKREG(&clk_pxa25x_btuart, "pxa2xx-uart.1", NULL),
	193	INIT_CLKREG(&clk_pxa25x_stuart, "pxa2xx-uart.2", NULL),
	194	INIT_CLKREG(&clk_pxa25x_usb, "pxa25x-udc", NULL),
	195	INIT_CLKREG(&clk_pxa25x_mmc, "pxa2xx-mci.0", NULL),
	196	INIT_CLKREG(&clk_pxa25x_i2c, "pxa2xx-i2c.0", NULL),
	197	INIT_CLKREG(&clk_pxa25x_ssp, "pxa25x-ssp.0", NULL),
	198	INIT_CLKREG(&clk_pxa25x_nssp, "pxa25x-nssp.1", NULL),
	199	INIT_CLKREG(&clk_pxa25x_assp, "pxa25x-nssp.2", NULL),
	200	INIT_CLKREG(&clk_pxa25x_pwm0, "pxa25x-pwm.0", NULL),
	201	INIT_CLKREG(&clk_pxa25x_pwm1, "pxa25x-pwm.1", NULL),
	202	INIT_CLKREG(&clk_pxa25x_i2s, "pxa2xx-i2s", NULL),
	203	INIT_CLKREG(&clk_pxa25x_stuart, "pxa2xx-ir", "UARTCLK"),
	204	INIT_CLKREG(&clk_pxa25x_ficp, "pxa2xx-ir", "FICPCLK"),
	205	INIT_CLKREG(&clk_pxa25x_ac97, NULL, "AC97CLK"),
	206	INIT_CLKREG(&clk_pxa25x_gpio11, NULL, "GPIO11_CLK"),
	207	INIT_CLKREG(&clk_pxa25x_gpio12, NULL, "GPIO12_CLK"),
a6dba20c RK	208	};
a6dba20c RK	209
4029813c EM	210	static struct clk_lookup pxa25x_hwuart_clkreg =
	211	INIT_CLKREG(&clk_pxa25x_hwuart, "pxa2xx-uart.3", NULL);
	212
a8fa3f0c	213	#ifdef CONFIG_PM
8775420d	214
711be5cc EM	215	#define SAVE(x) sleep_save[SLEEP_SAVE_##x] = x
	216	#define RESTORE(x) x = sleep_save[SLEEP_SAVE_##x]
	217
711be5cc EM	218	/*
	219	* List of global PXA peripheral registers to preserve.
	220	* More ones like CP and general purpose register values are preserved
	221	* with the stack pointer in sleep.S.
	222	*/
5a3d9651	223	enum {
711be5cc	224	SLEEP_SAVE_PSTR,
711be5cc	225	SLEEP_SAVE_CKEN,
649de51b	226	SLEEP_SAVE_COUNT
711be5cc EM	227	};
	228
	229
	230	static void pxa25x_cpu_pm_save(unsigned long *sleep_save)
	231	{
711be5cc EM	232	SAVE(CKEN);
	233	SAVE(PSTR);
	234	}
	235
	236	static void pxa25x_cpu_pm_restore(unsigned long *sleep_save)
	237	{
711be5cc	238	RESTORE(CKEN);
711be5cc EM	239	RESTORE(PSTR);
	240	}
	241
	242	static void pxa25x_cpu_pm_enter(suspend_state_t state)
8775420d	243	{
dc38e2ad RK	244	/* Clear reset status */
	245	RCSR = RCSR_HWR \| RCSR_WDR \| RCSR_SMR \| RCSR_GPR;
	246
8775420d TP	247	switch (state) {
8775420d TP	248	case PM_SUSPEND_MEM:
b750a093	249	pxa25x_cpu_suspend(PWRMODE_SLEEP);
8775420d TP	250	break;
	251	}
	252	}
a8fa3f0c	253
4104980a RK	254	static int pxa25x_cpu_pm_prepare(void)
	255	{
	256	/* set resume return address */
	257	PSPR = virt_to_phys(pxa_cpu_resume);
	258	return 0;
	259	}
	260
	261	static void pxa25x_cpu_pm_finish(void)
	262	{
	263	/* ensure not to come back here if it wasn't intended */
	264	PSPR = 0;
	265	}
	266
711be5cc	267	static struct pxa_cpu_pm_fns pxa25x_cpu_pm_fns = {
649de51b	268	.save_count = SLEEP_SAVE_COUNT,
26398a70	269	.valid = suspend_valid_only_mem,
711be5cc EM	270	.save = pxa25x_cpu_pm_save,
	271	.restore = pxa25x_cpu_pm_restore,
	272	.enter = pxa25x_cpu_pm_enter,
4104980a RK	273	.prepare = pxa25x_cpu_pm_prepare,
4104980a RK	274	.finish = pxa25x_cpu_pm_finish,
e176bb05	275	};
711be5cc EM	276
	277	static void __init pxa25x_init_pm(void)
	278	{
	279	pxa_cpu_pm_fns = &pxa25x_cpu_pm_fns;
	280	}
f79299ca	281	#else
f79299ca	282	static inline void pxa25x_init_pm(void) {}
a8fa3f0c	283	#endif
e176bb05	284
c95530c7	285	/* PXA25x: supports wakeup from GPIO0..GPIO15 and RTC alarm
	286	*/
	287
	288	static int pxa25x_set_wake(unsigned int irq, unsigned int on)
	289	{
	290	int gpio = IRQ_TO_GPIO(irq);
c0a596d6	291	uint32_t mask = 0;
	292
	293	if (gpio >= 0 && gpio < 85)
	294	return gpio_set_wake(gpio, on);
c95530c7	295
	296	if (irq == IRQ_RTCAlrm) {
	297	mask = PWER_RTC;
	298	goto set_pwer;
	299	}
	300
	301	return -EINVAL;
	302
	303	set_pwer:
	304	if (on)
	305	PWER \|= mask;
	306	else
	307	PWER &=~mask;
	308
	309	return 0;
	310	}
	311
cd49104d EM	312	void __init pxa25x_init_irq(void)
cd49104d EM	313	{
b9e25ace	314	pxa_init_irq(32, pxa25x_set_wake);
a58fbcd8	315	pxa_init_gpio(IRQ_GPIO_2_x, 2, 84, pxa25x_set_wake);
cd49104d EM	316	}
cd49104d EM	317
067455aa EM	318	#ifdef CONFIG_CPU_PXA26x
	319	void __init pxa26x_init_irq(void)
	320	{
	321	pxa_init_irq(32, pxa25x_set_wake);
a58fbcd8	322	pxa_init_gpio(IRQ_GPIO_2_x, 2, 89, pxa25x_set_wake);
067455aa EM	323	}
	324	#endif
	325
851982c1 MV	326	static struct map_desc pxa25x_io_desc[] __initdata = {
851982c1 MV	327	{ /* Mem Ctl */
ad68bb9f MV	328	.virtual = SMEMC_VIRT,
ad68bb9f MV	329	.pfn = __phys_to_pfn(PXA2XX_SMEMC_BASE),
851982c1 MV	330	.length = 0x00200000,
	331	.type = MT_DEVICE
	332	},
	333	};
	334
	335	void __init pxa25x_map_io(void)
	336	{
	337	pxa_map_io();
	338	iotable_init(ARRAY_AND_SIZE(pxa25x_io_desc));
	339	pxa25x_get_clk_frequency_khz(1);
	340	}
	341
34f3231f	342	static struct platform_device *pxa25x_devices[] __initdata = {
7a857620	343	&pxa25x_device_udc,
09a5358d	344	&pxa_device_pmu,
e09d02e1	345	&pxa_device_i2s,
72493146	346	&sa1100_device_rtc,
d8e0db11	347	&pxa25x_device_ssp,
	348	&pxa25x_device_nssp,
	349	&pxa25x_device_assp,
75540c1a	350	&pxa25x_device_pwm0,
75540c1a	351	&pxa25x_device_pwm1,
34f3231f RK	352	};
34f3231f RK	353
c0165504	354	static struct sys_device pxa25x_sysdev[] = {
	355	{
	356	.cls = &pxa_irq_sysclass,
5a3d9651 EM	357	}, {
5a3d9651 EM	358	.cls = &pxa2xx_mfp_sysclass,
16dfdbf0	359	}, {
16dfdbf0	360	.cls = &pxa_gpio_sysclass,
c0165504	361	},
	362	};
	363
e176bb05 RK	364	static int __init pxa25x_init(void)
e176bb05 RK	365	{
c0165504	366	int i, ret = 0;
f53f066c	367
0ffcbfd5	368	if (cpu_is_pxa25x()) {
04fef228 EM	369
	370	reset_status = RCSR;
	371
0a0300dc	372	clkdev_add_table(pxa25x_clkregs, ARRAY_SIZE(pxa25x_clkregs));
a6dba20c	373
fef1f99a	374	if ((ret = pxa_init_dma(IRQ_DMA, 16)))
f53f066c	375	return ret;
f79299ca	376
711be5cc	377	pxa25x_init_pm();
f79299ca	378
c0165504	379	for (i = 0; i < ARRAY_SIZE(pxa25x_sysdev); i++) {
	380	ret = sysdev_register(&pxa25x_sysdev[i]);
	381	if (ret)
	382	pr_err("failed to register sysdev[%d]\n", i);
	383	}
	384
34f3231f RK	385	ret = platform_add_devices(pxa25x_devices,
34f3231f RK	386	ARRAY_SIZE(pxa25x_devices));
c0165504	387	if (ret)
c0165504	388	return ret;
e176bb05	389	}
c0165504	390
2b12797c	391	/* Only add HWUART for PXA255/26x; PXA210/250 do not have it. */
cc155c6f	392	if (cpu_is_pxa255())
0a0300dc	393	clkdev_add(&pxa25x_hwuart_clkreg);
34f3231f RK	394
34f3231f RK	395	return ret;
e176bb05 RK	396	}
e176bb05 RK	397
1c104e0e	398	postcore_initcall(pxa25x_init);