[linux-2.6-block.git] / arch / arm / mach-pxa / zylonite_pxa300.c

/*
 * linux/arch/arm/mach-pxa/zylonite_pxa300.c
 *
 * PXA300/PXA310 specific support code for the
 * PXA3xx Development Platform (aka Zylonite)
 *
 * Copyright (C) 2007 Marvell Internation Ltd.
 * 2007-08-21: eric miao <eric.miao@marvell.com>
 *             initial version
 *
 * 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/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/i2c.h>
#include <linux/i2c/pca953x.h>

#include <asm/gpio.h>
#include <mach/mfp-pxa300.h>
#include <mach/i2c.h>
#include <mach/zylonite.h>

#include "generic.h"

/* PXA300/PXA310 common configurations */
static mfp_cfg_t common_mfp_cfg[] __initdata = {
	/* LCD */
	GPIO54_LCD_LDD_0,
	GPIO55_LCD_LDD_1,
	GPIO56_LCD_LDD_2,
	GPIO57_LCD_LDD_3,
	GPIO58_LCD_LDD_4,
	GPIO59_LCD_LDD_5,
	GPIO60_LCD_LDD_6,
	GPIO61_LCD_LDD_7,
	GPIO62_LCD_LDD_8,
	GPIO63_LCD_LDD_9,
	GPIO64_LCD_LDD_10,
	GPIO65_LCD_LDD_11,
	GPIO66_LCD_LDD_12,
	GPIO67_LCD_LDD_13,
	GPIO68_LCD_LDD_14,
	GPIO69_LCD_LDD_15,
	GPIO70_LCD_LDD_16,
	GPIO71_LCD_LDD_17,
	GPIO72_LCD_FCLK,
	GPIO73_LCD_LCLK,
	GPIO74_LCD_PCLK,
	GPIO75_LCD_BIAS,
	GPIO76_LCD_VSYNC,
	GPIO127_LCD_CS_N,
	GPIO20_PWM3_OUT,	/* backlight */

	/* BTUART */
	GPIO111_UART2_RTS,
	GPIO112_UART2_RXD | MFP_LPM_EDGE_FALL,
	GPIO113_UART2_TXD,
	GPIO114_UART2_CTS | MFP_LPM_EDGE_BOTH,

	/* STUART */
	GPIO109_UART3_TXD,
	GPIO110_UART3_RXD | MFP_LPM_EDGE_FALL,

	/* AC97 */
	GPIO23_AC97_nACRESET,
	GPIO24_AC97_SYSCLK,
	GPIO29_AC97_BITCLK,
	GPIO25_AC97_SDATA_IN_0,
	GPIO27_AC97_SDATA_OUT,
	GPIO28_AC97_SYNC,

	/* SSP3 */
	GPIO91_SSP3_SCLK,
	GPIO92_SSP3_FRM,
	GPIO93_SSP3_TXD,
	GPIO94_SSP3_RXD,

	/* WM9713 IRQ */
	GPIO26_GPIO,

	/* Keypad */
	GPIO107_KP_DKIN_0 | MFP_LPM_EDGE_BOTH,
	GPIO108_KP_DKIN_1 | MFP_LPM_EDGE_BOTH,
	GPIO115_KP_MKIN_0 | MFP_LPM_EDGE_BOTH,
	GPIO116_KP_MKIN_1 | MFP_LPM_EDGE_BOTH,
	GPIO117_KP_MKIN_2 | MFP_LPM_EDGE_BOTH,
	GPIO118_KP_MKIN_3 | MFP_LPM_EDGE_BOTH,
	GPIO119_KP_MKIN_4 | MFP_LPM_EDGE_BOTH,
	GPIO120_KP_MKIN_5 | MFP_LPM_EDGE_BOTH,
	GPIO2_2_KP_MKIN_6 | MFP_LPM_EDGE_BOTH,
	GPIO3_2_KP_MKIN_7 | MFP_LPM_EDGE_BOTH,
	GPIO121_KP_MKOUT_0,
	GPIO122_KP_MKOUT_1,
	GPIO123_KP_MKOUT_2,
	GPIO124_KP_MKOUT_3,
	GPIO125_KP_MKOUT_4,
	GPIO4_2_KP_MKOUT_5,
	GPIO5_2_KP_MKOUT_6,
	GPIO6_2_KP_MKOUT_7,

	/* MMC1 */
	GPIO3_MMC1_DAT0,
	GPIO4_MMC1_DAT1 | MFP_LPM_EDGE_BOTH,
	GPIO5_MMC1_DAT2,
	GPIO6_MMC1_DAT3,
	GPIO7_MMC1_CLK,
	GPIO8_MMC1_CMD,	/* CMD0 for slot 0 */
	GPIO15_GPIO,	/* CMD1 default as GPIO for slot 0 */

	/* MMC2 */
	GPIO9_MMC2_DAT0,
	GPIO10_MMC2_DAT1 | MFP_LPM_EDGE_BOTH,
	GPIO11_MMC2_DAT2,
	GPIO12_MMC2_DAT3,
	GPIO13_MMC2_CLK,
	GPIO14_MMC2_CMD,

	/* Standard I2C */
	GPIO21_I2C_SCL,
	GPIO22_I2C_SDA,
};

static mfp_cfg_t pxa300_mfp_cfg[] __initdata = {
	/* FFUART */
	GPIO30_UART1_RXD | MFP_LPM_EDGE_FALL,
	GPIO31_UART1_TXD,
	GPIO32_UART1_CTS,
	GPIO37_UART1_RTS,
	GPIO33_UART1_DCD,
	GPIO34_UART1_DSR | MFP_LPM_EDGE_FALL,
	GPIO35_UART1_RI,
	GPIO36_UART1_DTR,

	/* Ethernet */
	GPIO2_nCS3,
	GPIO99_GPIO,
};

static mfp_cfg_t pxa310_mfp_cfg[] __initdata = {
	/* FFUART */
	GPIO99_UART1_RXD | MFP_LPM_EDGE_FALL,
	GPIO100_UART1_TXD,
	GPIO101_UART1_CTS,
	GPIO106_UART1_RTS,

	/* Ethernet */
	GPIO2_nCS3,
	GPIO102_GPIO,

	/* MMC3 */
	GPIO7_2_MMC3_DAT0,
	GPIO8_2_MMC3_DAT1 | MFP_LPM_EDGE_BOTH,
	GPIO9_2_MMC3_DAT2,
	GPIO10_2_MMC3_DAT3,
	GPIO103_MMC3_CLK,
	GPIO105_MMC3_CMD,
};

#define NUM_LCD_DETECT_PINS	7

static int lcd_detect_pins[] __initdata = {
	MFP_PIN_GPIO71,	/* LCD_LDD_17 - ORIENT */
	MFP_PIN_GPIO70, /* LCD_LDD_16 - LCDID[5] */
	MFP_PIN_GPIO75, /* LCD_BIAS   - LCDID[4] */
	MFP_PIN_GPIO73, /* LCD_LCLK   - LCDID[3] */
	MFP_PIN_GPIO72, /* LCD_FCLK   - LCDID[2] */
	MFP_PIN_GPIO127,/* LCD_CS_N   - LCDID[1] */
	MFP_PIN_GPIO76, /* LCD_VSYNC  - LCDID[0] */
};

static void __init zylonite_detect_lcd_panel(void)
{
	unsigned long mfpr_save[NUM_LCD_DETECT_PINS];
	int i, gpio, id = 0;

	/* save the original MFP settings of these pins and configure
	 * them as GPIO Input, DS01X, Pull Neither, Edge Clear
	 */
	for (i = 0; i < NUM_LCD_DETECT_PINS; i++) {
		mfpr_save[i] = pxa3xx_mfp_read(lcd_detect_pins[i]);
		pxa3xx_mfp_write(lcd_detect_pins[i], 0x8440);
	}

	for (i = 0; i < NUM_LCD_DETECT_PINS; i++) {
		id = id << 1;
		gpio = mfp_to_gpio(lcd_detect_pins[i]);
		gpio_direction_input(gpio);

		if (gpio_get_value(gpio))
			id = id | 0x1;
	}

	/* lcd id, flush out bit 1 */
	lcd_id = id & 0x3d;

	/* lcd orientation, portrait or landscape */
	lcd_orientation = (id >> 6) & 0x1;

	/* restore the original MFP settings */
	for (i = 0; i < NUM_LCD_DETECT_PINS; i++)
		pxa3xx_mfp_write(lcd_detect_pins[i], mfpr_save[i]);
}

#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
static struct pca953x_platform_data gpio_exp[] = {
	[0] = {
		.gpio_base	= 128,
	},
	[1] = {
		.gpio_base	= 144,
	},
};

struct i2c_board_info zylonite_i2c_board_info[] = {
	{
		.type		= "pca9539",
		.addr		= 0x74,
		.platform_data	= &gpio_exp[0],
		.irq		= IRQ_GPIO(18),
	}, {
		.type		= "pca9539",
		.addr		= 0x75,
		.platform_data	= &gpio_exp[1],
		.irq		= IRQ_GPIO(19),
	},
};

static void __init zylonite_init_i2c(void)
{
	pxa_set_i2c_info(NULL);
	i2c_register_board_info(0, ARRAY_AND_SIZE(zylonite_i2c_board_info));
}
#else
static inline void zylonite_init_i2c(void) {}
#endif

void __init zylonite_pxa300_init(void)
{
	if (cpu_is_pxa300() || cpu_is_pxa310()) {
		/* initialize MFP */
		pxa3xx_mfp_config(ARRAY_AND_SIZE(common_mfp_cfg));

		/* detect LCD panel */
		zylonite_detect_lcd_panel();

		/* MMC card detect & write protect for controller 0 */
		zylonite_mmc_slot[0].gpio_cd  = EXT_GPIO(0);
		zylonite_mmc_slot[0].gpio_wp  = EXT_GPIO(2);

		/* WM9713 IRQ */
		wm9713_irq = mfp_to_gpio(MFP_PIN_GPIO26);

		zylonite_init_i2c();
	}

	if (cpu_is_pxa300()) {
		pxa3xx_mfp_config(ARRAY_AND_SIZE(pxa300_mfp_cfg));
		gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO99);
	}

	if (cpu_is_pxa310()) {
		pxa3xx_mfp_config(ARRAY_AND_SIZE(pxa310_mfp_cfg));
		gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO102);

		/* MMC card detect & write protect for controller 2 */
		zylonite_mmc_slot[2].gpio_cd = EXT_GPIO(30);
		zylonite_mmc_slot[2].gpio_wp = EXT_GPIO(31);
	}

	/* GPIOs for Debug LEDs */
	gpio_debug_led1 = EXT_GPIO(25);
	gpio_debug_led2 = EXT_GPIO(26);
}
Commit	Line	Data
2c8086a5	1	/*
	2	* linux/arch/arm/mach-pxa/zylonite_pxa300.c
	3	*
	4	* PXA300/PXA310 specific support code for the
	5	* PXA3xx Development Platform (aka Zylonite)
	6	*
	7	* Copyright (C) 2007 Marvell Internation Ltd.
e9bba8ee	8	* 2007-08-21: eric miao <eric.miao@marvell.com>
2c8086a5	9	* initial version
	10	*
	11	* This program is free software; you can redistribute it and/or modify
	12	* it under the terms of the GNU General Public License version 2 as
	13	* published by the Free Software Foundation.
	14	*/
	15
	16	#include <linux/module.h>
	17	#include <linux/kernel.h>
	18	#include <linux/init.h>
a1f7fc48 EM	19	#include <linux/i2c.h>
a1f7fc48 EM	20	#include <linux/i2c/pca953x.h>
2c8086a5	21
2c8086a5	22	#include <asm/gpio.h>
a09e64fb RK	23	#include <mach/mfp-pxa300.h>
	24	#include <mach/i2c.h>
	25	#include <mach/zylonite.h>
2c8086a5	26
3d3934c3	27	#include "generic.h"
2c8086a5	28
	29	/* PXA300/PXA310 common configurations */
	30	static mfp_cfg_t common_mfp_cfg[] __initdata = {
	31	/* LCD */
	32	GPIO54_LCD_LDD_0,
	33	GPIO55_LCD_LDD_1,
	34	GPIO56_LCD_LDD_2,
	35	GPIO57_LCD_LDD_3,
	36	GPIO58_LCD_LDD_4,
	37	GPIO59_LCD_LDD_5,
	38	GPIO60_LCD_LDD_6,
	39	GPIO61_LCD_LDD_7,
	40	GPIO62_LCD_LDD_8,
	41	GPIO63_LCD_LDD_9,
	42	GPIO64_LCD_LDD_10,
	43	GPIO65_LCD_LDD_11,
	44	GPIO66_LCD_LDD_12,
	45	GPIO67_LCD_LDD_13,
	46	GPIO68_LCD_LDD_14,
	47	GPIO69_LCD_LDD_15,
	48	GPIO70_LCD_LDD_16,
	49	GPIO71_LCD_LDD_17,
	50	GPIO72_LCD_FCLK,
	51	GPIO73_LCD_LCLK,
	52	GPIO74_LCD_PCLK,
	53	GPIO75_LCD_BIAS,
	54	GPIO76_LCD_VSYNC,
	55	GPIO127_LCD_CS_N,
5cca9147	56	GPIO20_PWM3_OUT, /* backlight */
2c8086a5	57
	58	/* BTUART */
	59	GPIO111_UART2_RTS,
a10476d4	60	GPIO112_UART2_RXD \| MFP_LPM_EDGE_FALL,
2c8086a5	61	GPIO113_UART2_TXD,
a10476d4	62	GPIO114_UART2_CTS \| MFP_LPM_EDGE_BOTH,
2c8086a5	63
	64	/* STUART */
	65	GPIO109_UART3_TXD,
a10476d4	66	GPIO110_UART3_RXD \| MFP_LPM_EDGE_FALL,
2c8086a5	67
	68	/* AC97 */
	69	GPIO23_AC97_nACRESET,
	70	GPIO24_AC97_SYSCLK,
	71	GPIO29_AC97_BITCLK,
	72	GPIO25_AC97_SDATA_IN_0,
	73	GPIO27_AC97_SDATA_OUT,
	74	GPIO28_AC97_SYNC,
	75
58d27fcf MB	76	/* SSP3 */
	77	GPIO91_SSP3_SCLK,
	78	GPIO92_SSP3_FRM,
	79	GPIO93_SSP3_TXD,
	80	GPIO94_SSP3_RXD,
	81
768dec4c MB	82	/* WM9713 IRQ */
	83	GPIO26_GPIO,
	84
2c8086a5	85	/* Keypad */
a10476d4 RK	86	GPIO107_KP_DKIN_0 \| MFP_LPM_EDGE_BOTH,
	87	GPIO108_KP_DKIN_1 \| MFP_LPM_EDGE_BOTH,
	88	GPIO115_KP_MKIN_0 \| MFP_LPM_EDGE_BOTH,
	89	GPIO116_KP_MKIN_1 \| MFP_LPM_EDGE_BOTH,
	90	GPIO117_KP_MKIN_2 \| MFP_LPM_EDGE_BOTH,
	91	GPIO118_KP_MKIN_3 \| MFP_LPM_EDGE_BOTH,
	92	GPIO119_KP_MKIN_4 \| MFP_LPM_EDGE_BOTH,
	93	GPIO120_KP_MKIN_5 \| MFP_LPM_EDGE_BOTH,
	94	GPIO2_2_KP_MKIN_6 \| MFP_LPM_EDGE_BOTH,
	95	GPIO3_2_KP_MKIN_7 \| MFP_LPM_EDGE_BOTH,
2c8086a5	96	GPIO121_KP_MKOUT_0,
	97	GPIO122_KP_MKOUT_1,
	98	GPIO123_KP_MKOUT_2,
	99	GPIO124_KP_MKOUT_3,
	100	GPIO125_KP_MKOUT_4,
	101	GPIO4_2_KP_MKOUT_5,
	102	GPIO5_2_KP_MKOUT_6,
	103	GPIO6_2_KP_MKOUT_7,
fafc9d3f BW	104
	105	/* MMC1 */
	106	GPIO3_MMC1_DAT0,
a10476d4	107	GPIO4_MMC1_DAT1 \| MFP_LPM_EDGE_BOTH,
fafc9d3f BW	108	GPIO5_MMC1_DAT2,
	109	GPIO6_MMC1_DAT3,
	110	GPIO7_MMC1_CLK,
	111	GPIO8_MMC1_CMD, /* CMD0 for slot 0 */
	112	GPIO15_GPIO, /* CMD1 default as GPIO for slot 0 */
8d33b055 BW	113
	114	/* MMC2 */
	115	GPIO9_MMC2_DAT0,
a10476d4	116	GPIO10_MMC2_DAT1 \| MFP_LPM_EDGE_BOTH,
8d33b055 BW	117	GPIO11_MMC2_DAT2,
	118	GPIO12_MMC2_DAT3,
	119	GPIO13_MMC2_CLK,
	120	GPIO14_MMC2_CMD,
a1f7fc48 EM	121
	122	/* Standard I2C */
	123	GPIO21_I2C_SCL,
	124	GPIO22_I2C_SDA,
2c8086a5	125	};
	126
	127	static mfp_cfg_t pxa300_mfp_cfg[] __initdata = {
	128	/* FFUART */
a10476d4	129	GPIO30_UART1_RXD \| MFP_LPM_EDGE_FALL,
2c8086a5	130	GPIO31_UART1_TXD,
	131	GPIO32_UART1_CTS,
	132	GPIO37_UART1_RTS,
	133	GPIO33_UART1_DCD,
a10476d4	134	GPIO34_UART1_DSR \| MFP_LPM_EDGE_FALL,
2c8086a5	135	GPIO35_UART1_RI,
	136	GPIO36_UART1_DTR,
	137
	138	/* Ethernet */
	139	GPIO2_nCS3,
	140	GPIO99_GPIO,
	141	};
	142
	143	static mfp_cfg_t pxa310_mfp_cfg[] __initdata = {
	144	/* FFUART */
a10476d4	145	GPIO99_UART1_RXD \| MFP_LPM_EDGE_FALL,
2c8086a5	146	GPIO100_UART1_TXD,
	147	GPIO101_UART1_CTS,
	148	GPIO106_UART1_RTS,
	149
	150	/* Ethernet */
	151	GPIO2_nCS3,
	152	GPIO102_GPIO,
5a1f21b1 BW	153
	154	/* MMC3 */
	155	GPIO7_2_MMC3_DAT0,
a10476d4	156	GPIO8_2_MMC3_DAT1 \| MFP_LPM_EDGE_BOTH,
5a1f21b1 BW	157	GPIO9_2_MMC3_DAT2,
	158	GPIO10_2_MMC3_DAT3,
	159	GPIO103_MMC3_CLK,
	160	GPIO105_MMC3_CMD,
2c8086a5	161	};
	162
	163	#define NUM_LCD_DETECT_PINS 7
	164
	165	static int lcd_detect_pins[] __initdata = {
	166	MFP_PIN_GPIO71, /* LCD_LDD_17 - ORIENT */
	167	MFP_PIN_GPIO70, /* LCD_LDD_16 - LCDID[5] */
	168	MFP_PIN_GPIO75, /* LCD_BIAS - LCDID[4] */
	169	MFP_PIN_GPIO73, /* LCD_LCLK - LCDID[3] */
	170	MFP_PIN_GPIO72, /* LCD_FCLK - LCDID[2] */
	171	MFP_PIN_GPIO127,/* LCD_CS_N - LCDID[1] */
	172	MFP_PIN_GPIO76, /* LCD_VSYNC - LCDID[0] */
	173	};
	174
	175	static void __init zylonite_detect_lcd_panel(void)
	176	{
	177	unsigned long mfpr_save[NUM_LCD_DETECT_PINS];
	178	int i, gpio, id = 0;
	179
	180	/* save the original MFP settings of these pins and configure
	181	* them as GPIO Input, DS01X, Pull Neither, Edge Clear
	182	*/
	183	for (i = 0; i < NUM_LCD_DETECT_PINS; i++) {
	184	mfpr_save[i] = pxa3xx_mfp_read(lcd_detect_pins[i]);
	185	pxa3xx_mfp_write(lcd_detect_pins[i], 0x8440);
	186	}
	187
	188	for (i = 0; i < NUM_LCD_DETECT_PINS; i++) {
	189	id = id << 1;
	190	gpio = mfp_to_gpio(lcd_detect_pins[i]);
	191	gpio_direction_input(gpio);
	192
	193	if (gpio_get_value(gpio))
	194	id = id \| 0x1;
	195	}
	196
	197	/* lcd id, flush out bit 1 */
	198	lcd_id = id & 0x3d;
	199
	200	/* lcd orientation, portrait or landscape */
	201	lcd_orientation = (id >> 6) & 0x1;
	202
	203	/* restore the original MFP settings */
	204	for (i = 0; i < NUM_LCD_DETECT_PINS; i++)
	205	pxa3xx_mfp_write(lcd_detect_pins[i], mfpr_save[i]);
	206	}
	207
a1f7fc48 EM	208	#if defined(CONFIG_I2C) \|\| defined(CONFIG_I2C_MODULE)
	209	static struct pca953x_platform_data gpio_exp[] = {
	210	[0] = {
	211	.gpio_base = 128,
	212	},
	213	[1] = {
	214	.gpio_base = 144,
	215	},
	216	};
	217
	218	struct i2c_board_info zylonite_i2c_board_info[] = {
	219	{
	220	.type = "pca9539",
	221	.addr = 0x74,
	222	.platform_data = &gpio_exp[0],
	223	.irq = IRQ_GPIO(18),
	224	}, {
	225	.type = "pca9539",
	226	.addr = 0x75,
	227	.platform_data = &gpio_exp[1],
	228	.irq = IRQ_GPIO(19),
	229	},
	230	};
	231
	232	static void __init zylonite_init_i2c(void)
	233	{
	234	pxa_set_i2c_info(NULL);
	235	i2c_register_board_info(0, ARRAY_AND_SIZE(zylonite_i2c_board_info));
	236	}
	237	#else
	238	static inline void zylonite_init_i2c(void) {}
	239	#endif
	240
2c8086a5	241	void __init zylonite_pxa300_init(void)
	242	{
	243	if (cpu_is_pxa300() \|\| cpu_is_pxa310()) {
	244	/* initialize MFP */
	245	pxa3xx_mfp_config(ARRAY_AND_SIZE(common_mfp_cfg));
	246
	247	/* detect LCD panel */
	248	zylonite_detect_lcd_panel();
	249
fafc9d3f BW	250	/* MMC card detect & write protect for controller 0 */
	251	zylonite_mmc_slot[0].gpio_cd = EXT_GPIO(0);
	252	zylonite_mmc_slot[0].gpio_wp = EXT_GPIO(2);
768dec4c MB	253
	254	/* WM9713 IRQ */
	255	wm9713_irq = mfp_to_gpio(MFP_PIN_GPIO26);
a1f7fc48 EM	256
a1f7fc48 EM	257	zylonite_init_i2c();
2c8086a5	258	}
	259
	260	if (cpu_is_pxa300()) {
	261	pxa3xx_mfp_config(ARRAY_AND_SIZE(pxa300_mfp_cfg));
	262	gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO99);
	263	}
	264
	265	if (cpu_is_pxa310()) {
	266	pxa3xx_mfp_config(ARRAY_AND_SIZE(pxa310_mfp_cfg));
	267	gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO102);
5a1f21b1 BW	268
	269	/* MMC card detect & write protect for controller 2 */
	270	zylonite_mmc_slot[2].gpio_cd = EXT_GPIO(30);
	271	zylonite_mmc_slot[2].gpio_wp = EXT_GPIO(31);
2c8086a5	272	}
5c9f50e9 EM	273
	274	/* GPIOs for Debug LEDs */
	275	gpio_debug_led1 = EXT_GPIO(25);
	276	gpio_debug_led2 = EXT_GPIO(26);
2c8086a5	277	}