[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/gpio.h>
#include <linux/gpio-pxa.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/suspend.h>
#include <linux/syscore_ops.h>
#include <linux/irq.h>

#include <asm/mach/map.h>
#include <asm/suspend.h>
#include <mach/hardware.h>
#include <mach/irqs.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);
}

static unsigned long clk_pxa25x_mem_getrate(struct clk *clk)
{
	return L_clk_mult[(CCCR >> 0) & 0x1f] * BASE_CLK;
}

static const struct clkops clk_pxa25x_mem_ops = {
	.enable		= clk_dummy_enable,
	.disable	= clk_dummy_disable,
	.getrate	= clk_pxa25x_mem_getrate,
};

static const struct clkops clk_pxa25x_lcd_ops = {
	.enable		= clk_pxa2xx_cken_enable,
	.disable	= clk_pxa2xx_cken_disable,
	.getrate	= clk_pxa25x_mem_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 DEFINE_CLK(pxa25x_mem, &clk_pxa25x_mem_ops, 0, 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"),
	INIT_CLKREG(&clk_pxa25x_mem, "pxa2xx-pcmcia", NULL),
#ifdef CONFIG_CPU_PXA26x
	INIT_CLKREG(&clk_dummy, "pxa26x-gpio", NULL),
#else
	INIT_CLKREG(&clk_dummy, "pxa25x-gpio", NULL),
#endif
	INIT_CLKREG(&clk_dummy, "sa1100-rtc", NULL),
};

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_COUNT
};


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

static void pxa25x_cpu_pm_restore(unsigned long *sleep_save)
{
	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:
		cpu_suspend(PWRMODE_SLEEP, pxa25x_finish_suspend);
		break;
	}
}

static int pxa25x_cpu_pm_prepare(void)
{
	/* set resume return address */
	PSPR = virt_to_phys(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(struct irq_data *d, unsigned int on)
{
	int gpio = pxa_irq_to_gpio(d->irq);
	uint32_t mask = 0;

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

	if (d->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);
}

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

static struct map_desc pxa25x_io_desc[] __initdata = {
	{	/* Mem Ctl */
		.virtual	= (unsigned long)SMEMC_VIRT,
		.pfn		= __phys_to_pfn(PXA2XX_SMEMC_BASE),
		.length		= SMEMC_SIZE,
		.type		= MT_DEVICE
	}, {	/* UNCACHED_PHYS_0 */
		.virtual	= UNCACHED_PHYS_0,
		.pfn		= __phys_to_pfn(0x00000000),
		.length		= UNCACHED_PHYS_0_SIZE,
		.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 pxa_gpio_platform_data pxa25x_gpio_info __initdata = {
	.irq_base	= PXA_GPIO_TO_IRQ(0),
	.gpio_set_wake	= gpio_set_wake,
};

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,
	&pxa_device_asoc_platform,
};

static int __init pxa25x_init(void)
{
	int 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();

		register_syscore_ops(&pxa_irq_syscore_ops);
		register_syscore_ops(&pxa2xx_mfp_syscore_ops);
		register_syscore_ops(&pxa2xx_clock_syscore_ops);

		pxa_register_device(&pxa25x_device_gpio, &pxa25x_gpio_info);
		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	*/
2f8163ba	19	#include <linux/gpio.h>
157d2644	20	#include <linux/gpio-pxa.h>
1da177e4 LT	21	#include <linux/module.h>
	22	#include <linux/kernel.h>
	23	#include <linux/init.h>
34f3231f	24	#include <linux/platform_device.h>
95d9ffbe	25	#include <linux/suspend.h>
2eaa03b5	26	#include <linux/syscore_ops.h>
a3f4c927	27	#include <linux/irq.h>
1da177e4	28
851982c1	29	#include <asm/mach/map.h>
2c74a0ce	30	#include <asm/suspend.h>
a09e64fb RK	31	#include <mach/hardware.h>
a09e64fb RK	32	#include <mach/irqs.h>
51c62982	33	#include <mach/pxa25x.h>
afd2fc02	34	#include <mach/reset.h>
a09e64fb RK	35	#include <mach/pm.h>
a09e64fb RK	36	#include <mach/dma.h>
ad68bb9f	37	#include <mach/smemc.h>
1da177e4 LT	38
1da177e4 LT	39	#include "generic.h"
46c41e62	40	#include "devices.h"
a6dba20c	41	#include "clock.h"
1da177e4 LT	42
	43	/*
	44	* Various clock factors driven by the CCCR register.
	45	*/
	46
	47	/* Crystal Frequency to Memory Frequency Multiplier (L) */
	48	static unsigned char L_clk_mult[32] = { 0, 27, 32, 36, 40, 45, 0, };
	49
	50	/* Memory Frequency to Run Mode Frequency Multiplier (M) */
	51	static unsigned char M_clk_mult[4] = { 0, 1, 2, 4 };
	52
	53	/* Run Mode Frequency to Turbo Mode Frequency Multiplier (N) */
	54	/* Note: we store the value N * 2 here. */
	55	static unsigned char N2_clk_mult[8] = { 0, 0, 2, 3, 4, 0, 6, 0 };
	56
	57	/* Crystal clock */
	58	#define BASE_CLK 3686400
	59
	60	/*
	61	* Get the clock frequency as reflected by CCCR and the turbo flag.
	62	* We assume these values have been applied via a fcs.
	63	* If info is not 0 we also display the current settings.
	64	*/
15a40333	65	unsigned int pxa25x_get_clk_frequency_khz(int info)
1da177e4 LT	66	{
	67	unsigned long cccr, turbo;
	68	unsigned int l, L, m, M, n2, N;
	69
	70	cccr = CCCR;
	71	asm( "mrc\tp14, 0, %0, c6, c0, 0" : "=r" (turbo) );
	72
	73	l = L_clk_mult[(cccr >> 0) & 0x1f];
	74	m = M_clk_mult[(cccr >> 5) & 0x03];
	75	n2 = N2_clk_mult[(cccr >> 7) & 0x07];
	76
	77	L = l * BASE_CLK;
	78	M = m * L;
	79	N = n2 * M / 2;
	80
	81	if(info)
	82	{
	83	L += 5000;
	84	printk( KERN_INFO "Memory clock: %d.%02dMHz (*%d)\n",
	85	L / 1000000, (L % 1000000) / 10000, l );
	86	M += 5000;
	87	printk( KERN_INFO "Run Mode clock: %d.%02dMHz (*%d)\n",
	88	M / 1000000, (M % 1000000) / 10000, m );
	89	N += 5000;
	90	printk( KERN_INFO "Turbo Mode clock: %d.%02dMHz (*%d.%d, %sactive)\n",
	91	N / 1000000, (N % 1000000) / 10000, n2 / 2, (n2 % 2) * 5,
	92	(turbo & 1) ? "" : "in" );
	93	}
	94
	95	return (turbo & 1) ? (N/1000) : (M/1000);
	96	}
	97
2a125dd5	98	static unsigned long clk_pxa25x_mem_getrate(struct clk *clk)
1da177e4	99	{
2a125dd5	100	return L_clk_mult[(CCCR >> 0) & 0x1f] * BASE_CLK;
1da177e4 LT	101	}
1da177e4 LT	102
2a125dd5 EM	103	static const struct clkops clk_pxa25x_mem_ops = {
	104	.enable = clk_dummy_enable,
	105	.disable = clk_dummy_disable,
	106	.getrate = clk_pxa25x_mem_getrate,
	107	};
a6dba20c RK	108
a6dba20c RK	109	static const struct clkops clk_pxa25x_lcd_ops = {
4029813c EM	110	.enable = clk_pxa2xx_cken_enable,
4029813c EM	111	.disable = clk_pxa2xx_cken_disable,
2a125dd5	112	.getrate = clk_pxa25x_mem_getrate,
a6dba20c RK	113	};
a6dba20c RK	114
ed847782 IM	115	static unsigned long gpio12_config_32k[] = {
	116	GPIO12_32KHz,
	117	};
	118
	119	static unsigned long gpio12_config_gpio[] = {
	120	GPIO12_GPIO,
	121	};
	122
	123	static void clk_gpio12_enable(struct clk *clk)
	124	{
	125	pxa2xx_mfp_config(gpio12_config_32k, 1);
	126	}
	127
	128	static void clk_gpio12_disable(struct clk *clk)
	129	{
	130	pxa2xx_mfp_config(gpio12_config_gpio, 1);
	131	}
	132
	133	static const struct clkops clk_pxa25x_gpio12_ops = {
	134	.enable = clk_gpio12_enable,
	135	.disable = clk_gpio12_disable,
	136	};
	137
13f75582 IM	138	static unsigned long gpio11_config_3m6[] = {
	139	GPIO11_3_6MHz,
	140	};
	141
	142	static unsigned long gpio11_config_gpio[] = {
	143	GPIO11_GPIO,
	144	};
	145
	146	static void clk_gpio11_enable(struct clk *clk)
	147	{
	148	pxa2xx_mfp_config(gpio11_config_3m6, 1);
	149	}
	150
	151	static void clk_gpio11_disable(struct clk *clk)
	152	{
	153	pxa2xx_mfp_config(gpio11_config_gpio, 1);
	154	}
	155
	156	static const struct clkops clk_pxa25x_gpio11_ops = {
	157	.enable = clk_gpio11_enable,
	158	.disable = clk_gpio11_disable,
	159	};
	160
a6dba20c RK	161	/*
	162	* 3.6864MHz -> OST, GPIO, SSP, PWM, PLLs (95.842MHz, 147.456MHz)
	163	* 95.842MHz -> MMC 19.169MHz, I2C 31.949MHz, FICP 47.923MHz, USB 47.923MHz
	164	* 147.456MHz -> UART 14.7456MHz, AC97 12.288MHz, I2S 5.672MHz (allegedly)
	165	*/
e01dbdb4	166
bdb08cb2	167	/*
c1ed406c	168	* PXA 2xx clock declarations.
bdb08cb2	169	*/
4029813c EM	170	static DEFINE_PXA2_CKEN(pxa25x_hwuart, HWUART, 14745600, 1);
	171	static DEFINE_PXA2_CKEN(pxa25x_ffuart, FFUART, 14745600, 1);
	172	static DEFINE_PXA2_CKEN(pxa25x_btuart, BTUART, 14745600, 1);
	173	static DEFINE_PXA2_CKEN(pxa25x_stuart, STUART, 14745600, 1);
	174	static DEFINE_PXA2_CKEN(pxa25x_usb, USB, 47923000, 5);
	175	static DEFINE_PXA2_CKEN(pxa25x_mmc, MMC, 19169000, 0);
	176	static DEFINE_PXA2_CKEN(pxa25x_i2c, I2C, 31949000, 0);
	177	static DEFINE_PXA2_CKEN(pxa25x_ssp, SSP, 3686400, 0);
	178	static DEFINE_PXA2_CKEN(pxa25x_nssp, NSSP, 3686400, 0);
	179	static DEFINE_PXA2_CKEN(pxa25x_assp, ASSP, 3686400, 0);
	180	static DEFINE_PXA2_CKEN(pxa25x_pwm0, PWM0, 3686400, 0);
	181	static DEFINE_PXA2_CKEN(pxa25x_pwm1, PWM1, 3686400, 0);
	182	static DEFINE_PXA2_CKEN(pxa25x_ac97, AC97, 24576000, 0);
	183	static DEFINE_PXA2_CKEN(pxa25x_i2s, I2S, 14745600, 0);
	184	static DEFINE_PXA2_CKEN(pxa25x_ficp, FICP, 47923000, 0);
	185
8c3abc7d	186	static DEFINE_CK(pxa25x_lcd, LCD, &clk_pxa25x_lcd_ops);
8c3abc7d RK	187	static DEFINE_CLK(pxa25x_gpio11, &clk_pxa25x_gpio11_ops, 3686400, 0);
8c3abc7d RK	188	static DEFINE_CLK(pxa25x_gpio12, &clk_pxa25x_gpio12_ops, 32768, 0);
2a125dd5	189	static DEFINE_CLK(pxa25x_mem, &clk_pxa25x_mem_ops, 0, 0);
8c3abc7d RK	190
	191	static struct clk_lookup pxa25x_clkregs[] = {
	192	INIT_CLKREG(&clk_pxa25x_lcd, "pxa2xx-fb", NULL),
	193	INIT_CLKREG(&clk_pxa25x_ffuart, "pxa2xx-uart.0", NULL),
	194	INIT_CLKREG(&clk_pxa25x_btuart, "pxa2xx-uart.1", NULL),
	195	INIT_CLKREG(&clk_pxa25x_stuart, "pxa2xx-uart.2", NULL),
	196	INIT_CLKREG(&clk_pxa25x_usb, "pxa25x-udc", NULL),
	197	INIT_CLKREG(&clk_pxa25x_mmc, "pxa2xx-mci.0", NULL),
	198	INIT_CLKREG(&clk_pxa25x_i2c, "pxa2xx-i2c.0", NULL),
	199	INIT_CLKREG(&clk_pxa25x_ssp, "pxa25x-ssp.0", NULL),
	200	INIT_CLKREG(&clk_pxa25x_nssp, "pxa25x-nssp.1", NULL),
	201	INIT_CLKREG(&clk_pxa25x_assp, "pxa25x-nssp.2", NULL),
	202	INIT_CLKREG(&clk_pxa25x_pwm0, "pxa25x-pwm.0", NULL),
	203	INIT_CLKREG(&clk_pxa25x_pwm1, "pxa25x-pwm.1", NULL),
	204	INIT_CLKREG(&clk_pxa25x_i2s, "pxa2xx-i2s", NULL),
	205	INIT_CLKREG(&clk_pxa25x_stuart, "pxa2xx-ir", "UARTCLK"),
	206	INIT_CLKREG(&clk_pxa25x_ficp, "pxa2xx-ir", "FICPCLK"),
	207	INIT_CLKREG(&clk_pxa25x_ac97, NULL, "AC97CLK"),
	208	INIT_CLKREG(&clk_pxa25x_gpio11, NULL, "GPIO11_CLK"),
	209	INIT_CLKREG(&clk_pxa25x_gpio12, NULL, "GPIO12_CLK"),
2a125dd5	210	INIT_CLKREG(&clk_pxa25x_mem, "pxa2xx-pcmcia", NULL),
2cab0292 HZ	211	#ifdef CONFIG_CPU_PXA26x
	212	INIT_CLKREG(&clk_dummy, "pxa26x-gpio", NULL),
	213	#else
	214	INIT_CLKREG(&clk_dummy, "pxa25x-gpio", NULL),
	215	#endif
d90cb69d	216	INIT_CLKREG(&clk_dummy, "sa1100-rtc", NULL),
a6dba20c RK	217	};
a6dba20c RK	218
4029813c EM	219	static struct clk_lookup pxa25x_hwuart_clkreg =
	220	INIT_CLKREG(&clk_pxa25x_hwuart, "pxa2xx-uart.3", NULL);
	221
a8fa3f0c	222	#ifdef CONFIG_PM
8775420d	223
711be5cc EM	224	#define SAVE(x) sleep_save[SLEEP_SAVE_##x] = x
	225	#define RESTORE(x) x = sleep_save[SLEEP_SAVE_##x]
	226
711be5cc EM	227	/*
	228	* List of global PXA peripheral registers to preserve.
	229	* More ones like CP and general purpose register values are preserved
	230	* with the stack pointer in sleep.S.
	231	*/
5a3d9651	232	enum {
711be5cc	233	SLEEP_SAVE_PSTR,
649de51b	234	SLEEP_SAVE_COUNT
711be5cc EM	235	};
	236
	237
	238	static void pxa25x_cpu_pm_save(unsigned long *sleep_save)
	239	{
711be5cc EM	240	SAVE(PSTR);
	241	}
	242
	243	static void pxa25x_cpu_pm_restore(unsigned long *sleep_save)
	244	{
711be5cc EM	245	RESTORE(PSTR);
	246	}
	247
	248	static void pxa25x_cpu_pm_enter(suspend_state_t state)
8775420d	249	{
dc38e2ad RK	250	/* Clear reset status */
	251	RCSR = RCSR_HWR \| RCSR_WDR \| RCSR_SMR \| RCSR_GPR;
	252
8775420d TP	253	switch (state) {
8775420d TP	254	case PM_SUSPEND_MEM:
2c74a0ce	255	cpu_suspend(PWRMODE_SLEEP, pxa25x_finish_suspend);
8775420d TP	256	break;
	257	}
	258	}
a8fa3f0c	259
4104980a RK	260	static int pxa25x_cpu_pm_prepare(void)
	261	{
	262	/* set resume return address */
4f5ad99b	263	PSPR = virt_to_phys(cpu_resume);
4104980a RK	264	return 0;
	265	}
	266
	267	static void pxa25x_cpu_pm_finish(void)
	268	{
	269	/* ensure not to come back here if it wasn't intended */
	270	PSPR = 0;
	271	}
	272
711be5cc	273	static struct pxa_cpu_pm_fns pxa25x_cpu_pm_fns = {
649de51b	274	.save_count = SLEEP_SAVE_COUNT,
26398a70	275	.valid = suspend_valid_only_mem,
711be5cc EM	276	.save = pxa25x_cpu_pm_save,
	277	.restore = pxa25x_cpu_pm_restore,
	278	.enter = pxa25x_cpu_pm_enter,
4104980a RK	279	.prepare = pxa25x_cpu_pm_prepare,
4104980a RK	280	.finish = pxa25x_cpu_pm_finish,
e176bb05	281	};
711be5cc EM	282
	283	static void __init pxa25x_init_pm(void)
	284	{
	285	pxa_cpu_pm_fns = &pxa25x_cpu_pm_fns;
	286	}
f79299ca	287	#else
f79299ca	288	static inline void pxa25x_init_pm(void) {}
a8fa3f0c	289	#endif
e176bb05	290
c95530c7	291	/* PXA25x: supports wakeup from GPIO0..GPIO15 and RTC alarm
	292	*/
	293
a3f4c927	294	static int pxa25x_set_wake(struct irq_data *d, unsigned int on)
c95530c7	295	{
4929f5a8	296	int gpio = pxa_irq_to_gpio(d->irq);
c0a596d6	297	uint32_t mask = 0;
	298
	299	if (gpio >= 0 && gpio < 85)
	300	return gpio_set_wake(gpio, on);
c95530c7	301
a3f4c927	302	if (d->irq == IRQ_RTCAlrm) {
c95530c7	303	mask = PWER_RTC;
	304	goto set_pwer;
	305	}
	306
	307	return -EINVAL;
	308
	309	set_pwer:
	310	if (on)
	311	PWER \|= mask;
	312	else
	313	PWER &=~mask;
	314
	315	return 0;
	316	}
	317
cd49104d EM	318	void __init pxa25x_init_irq(void)
cd49104d EM	319	{
b9e25ace	320	pxa_init_irq(32, pxa25x_set_wake);
cd49104d EM	321	}
cd49104d EM	322
067455aa EM	323	#ifdef CONFIG_CPU_PXA26x
	324	void __init pxa26x_init_irq(void)
	325	{
	326	pxa_init_irq(32, pxa25x_set_wake);
067455aa EM	327	}
	328	#endif
	329
851982c1 MV	330	static struct map_desc pxa25x_io_desc[] __initdata = {
851982c1 MV	331	{ /* Mem Ctl */
97b09da4	332	.virtual = (unsigned long)SMEMC_VIRT,
ad68bb9f	333	.pfn = __phys_to_pfn(PXA2XX_SMEMC_BASE),
0e32986c	334	.length = SMEMC_SIZE,
851982c1	335	.type = MT_DEVICE
b10f1c83 LP	336	}, { /* UNCACHED_PHYS_0 */
	337	.virtual = UNCACHED_PHYS_0,
	338	.pfn = __phys_to_pfn(0x00000000),
	339	.length = UNCACHED_PHYS_0_SIZE,
	340	.type = MT_DEVICE
851982c1 MV	341	},
	342	};
	343
	344	void __init pxa25x_map_io(void)
	345	{
	346	pxa_map_io();
	347	iotable_init(ARRAY_AND_SIZE(pxa25x_io_desc));
	348	pxa25x_get_clk_frequency_khz(1);
	349	}
	350
8757e168	351	static struct pxa_gpio_platform_data pxa25x_gpio_info __initdata = {
b8f649f1 HZ	352	.irq_base = PXA_GPIO_TO_IRQ(0),
b8f649f1 HZ	353	.gpio_set_wake = gpio_set_wake,
8757e168 AA	354	};
8757e168 AA	355
34f3231f	356	static struct platform_device *pxa25x_devices[] __initdata = {
7a857620	357	&pxa25x_device_udc,
09a5358d	358	&pxa_device_pmu,
e09d02e1	359	&pxa_device_i2s,
72493146	360	&sa1100_device_rtc,
d8e0db11	361	&pxa25x_device_ssp,
	362	&pxa25x_device_nssp,
	363	&pxa25x_device_assp,
75540c1a	364	&pxa25x_device_pwm0,
75540c1a	365	&pxa25x_device_pwm1,
ea73e752	366	&pxa_device_asoc_platform,
34f3231f RK	367	};
34f3231f RK	368
e176bb05 RK	369	static int __init pxa25x_init(void)
e176bb05 RK	370	{
2eaa03b5	371	int ret = 0;
f53f066c	372
0ffcbfd5	373	if (cpu_is_pxa25x()) {
04fef228 EM	374
	375	reset_status = RCSR;
	376
0a0300dc	377	clkdev_add_table(pxa25x_clkregs, ARRAY_SIZE(pxa25x_clkregs));
a6dba20c	378
fef1f99a	379	if ((ret = pxa_init_dma(IRQ_DMA, 16)))
f53f066c	380	return ret;
f79299ca	381
711be5cc	382	pxa25x_init_pm();
f79299ca	383
2eaa03b5 RW	384	register_syscore_ops(&pxa_irq_syscore_ops);
2eaa03b5 RW	385	register_syscore_ops(&pxa2xx_mfp_syscore_ops);
2eaa03b5	386	register_syscore_ops(&pxa2xx_clock_syscore_ops);
c0165504	387
2cab0292	388	pxa_register_device(&pxa25x_device_gpio, &pxa25x_gpio_info);
34f3231f RK	389	ret = platform_add_devices(pxa25x_devices,
34f3231f RK	390	ARRAY_SIZE(pxa25x_devices));
c0165504	391	if (ret)
c0165504	392	return ret;
e176bb05	393	}
c0165504	394
2b12797c	395	/* Only add HWUART for PXA255/26x; PXA210/250 do not have it. */
cc155c6f	396	if (cpu_is_pxa255())
0a0300dc	397	clkdev_add(&pxa25x_hwuart_clkreg);
34f3231f RK	398
34f3231f RK	399	return ret;
e176bb05 RK	400	}
e176bb05 RK	401
1c104e0e	402	postcore_initcall(pxa25x_init);