[net-next-2.6.git] / arch / arm / mach-pxa / zylonite_pxa320.c

/*
 * linux/arch/arm/mach-pxa/zylonite_pxa320.c
 *
 * PXA320 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/gpio.h>

#include <mach/pxa320.h>
#include <mach/zylonite.h>

#include "generic.h"

static mfp_cfg_t mfp_cfg[] __initdata = {
	/* LCD */
	GPIO6_2_LCD_LDD_0,
	GPIO7_2_LCD_LDD_1,
	GPIO8_2_LCD_LDD_2,
	GPIO9_2_LCD_LDD_3,
	GPIO10_2_LCD_LDD_4,
	GPIO11_2_LCD_LDD_5,
	GPIO12_2_LCD_LDD_6,
	GPIO13_2_LCD_LDD_7,
	GPIO63_LCD_LDD_8,
	GPIO64_LCD_LDD_9,
	GPIO65_LCD_LDD_10,
	GPIO66_LCD_LDD_11,
	GPIO67_LCD_LDD_12,
	GPIO68_LCD_LDD_13,
	GPIO69_LCD_LDD_14,
	GPIO70_LCD_LDD_15,
	GPIO71_LCD_LDD_16,
	GPIO72_LCD_LDD_17,
	GPIO73_LCD_CS_N,
	GPIO74_LCD_VSYNC,
	GPIO14_2_LCD_FCLK,
	GPIO15_2_LCD_LCLK,
	GPIO16_2_LCD_PCLK,
	GPIO17_2_LCD_BIAS,
	GPIO14_PWM3_OUT,	/* backlight */

	/* FFUART */
	GPIO41_UART1_RXD | MFP_LPM_EDGE_FALL,
	GPIO42_UART1_TXD,
	GPIO43_UART1_CTS,
	GPIO44_UART1_DCD,
	GPIO45_UART1_DSR | MFP_LPM_EDGE_FALL,
	GPIO46_UART1_RI,
	GPIO47_UART1_DTR,
	GPIO48_UART1_RTS,

	/* AC97 */
	GPIO34_AC97_SYSCLK,
	GPIO35_AC97_SDATA_IN_0,
	GPIO37_AC97_SDATA_OUT,
	GPIO38_AC97_SYNC,
	GPIO39_AC97_BITCLK,
	GPIO40_AC97_nACRESET,
	GPIO36_GPIO,	/* SDATA_IN_1 but unused - configure to GPIO */

	/* SSP3 */
	GPIO89_SSP3_SCLK,
	GPIO90_SSP3_FRM,
	GPIO91_SSP3_TXD,
	GPIO92_SSP3_RXD,

	/* WM9713 IRQ */
	GPIO15_GPIO,

	/* I2C */
	GPIO32_I2C_SCL,
	GPIO33_I2C_SDA,

	/* Keypad */
	GPIO105_KP_DKIN_0 | MFP_LPM_EDGE_BOTH,
	GPIO106_KP_DKIN_1 | MFP_LPM_EDGE_BOTH,
	GPIO113_KP_MKIN_0 | MFP_LPM_EDGE_BOTH,
	GPIO114_KP_MKIN_1 | MFP_LPM_EDGE_BOTH,
	GPIO115_KP_MKIN_2 | MFP_LPM_EDGE_BOTH,
	GPIO116_KP_MKIN_3 | MFP_LPM_EDGE_BOTH,
	GPIO117_KP_MKIN_4 | MFP_LPM_EDGE_BOTH,
	GPIO118_KP_MKIN_5 | MFP_LPM_EDGE_BOTH,
	GPIO119_KP_MKIN_6 | MFP_LPM_EDGE_BOTH,
	GPIO120_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,
	GPIO126_KP_MKOUT_5,
	GPIO127_KP_MKOUT_6,
	GPIO5_2_KP_MKOUT_7,

	/* Ethernet */
	GPIO4_nCS3,
	GPIO90_GPIO,

	/* MMC1 */
	GPIO18_MMC1_DAT0,
	GPIO19_MMC1_DAT1 | MFP_LPM_EDGE_BOTH,
	GPIO20_MMC1_DAT2,
	GPIO21_MMC1_DAT3,
	GPIO22_MMC1_CLK,
	GPIO23_MMC1_CMD,/* CMD0 for slot 0 */
	GPIO31_GPIO,	/* CMD1 default as GPIO for slot 0 */

	/* MMC2 */
	GPIO24_MMC2_DAT0,
	GPIO25_MMC2_DAT1 | MFP_LPM_EDGE_BOTH,
	GPIO26_MMC2_DAT2,
	GPIO27_MMC2_DAT3,
	GPIO28_MMC2_CLK,
	GPIO29_MMC2_CMD,

	/* USB Host */
	GPIO2_2_USBH_PEN,
	GPIO3_2_USBH_PWR,

	/* Debug LEDs */
	GPIO1_2_GPIO | MFP_LPM_DRIVE_HIGH,
	GPIO4_2_GPIO | MFP_LPM_DRIVE_HIGH,
};

#define NUM_LCD_DETECT_PINS	7

static int lcd_detect_pins[] __initdata = {
	MFP_PIN_GPIO72,   /* LCD_LDD_17 - ORIENT */
	MFP_PIN_GPIO71,   /* LCD_LDD_16 - LCDID[5] */
	MFP_PIN_GPIO17_2, /* LCD_BIAS   - LCDID[4] */
	MFP_PIN_GPIO15_2, /* LCD_LCLK   - LCDID[3] */
	MFP_PIN_GPIO14_2, /* LCD_FCLK   - LCDID[2] */
	MFP_PIN_GPIO73,   /* LCD_CS_N   - LCDID[1] */
	MFP_PIN_GPIO74,   /* LCD_VSYNC  - LCDID[0] */
	/*
	 * set the MFP_PIN_GPIO 14/15/17 to alternate function other than
	 * GPIO to avoid input level confliction with 14_2, 15_2, 17_2
	 */
	MFP_PIN_GPIO14,
	MFP_PIN_GPIO15,
	MFP_PIN_GPIO17,
};

static int lcd_detect_mfpr[] __initdata = {
	/* AF0, DS 1X, Pull Neither, Edge Clear */
	0x8440, 0x8440, 0x8440, 0x8440, 0x8440, 0x8440, 0x8440,
	0xc442, /* Backlight, Pull-Up, AF2 */
	0x8445, /* AF5 */
	0x8445, /* AF5 */
};

static void __init zylonite_detect_lcd_panel(void)
{
	unsigned long mfpr_save[ARRAY_SIZE(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 < ARRAY_SIZE(lcd_detect_pins); i++) {
		mfpr_save[i] = pxa3xx_mfp_read(lcd_detect_pins[i]);
		pxa3xx_mfp_write(lcd_detect_pins[i], lcd_detect_mfpr[i]);
	}

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

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

	/* 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 < ARRAY_SIZE(lcd_detect_pins); i++)
		pxa3xx_mfp_write(lcd_detect_pins[i], mfpr_save[i]);
}

void __init zylonite_pxa320_init(void)
{
	if (cpu_is_pxa320()) {
		/* initialize MFP */
		pxa3xx_mfp_config(ARRAY_AND_SIZE(mfp_cfg));

		/* detect LCD panel */
		zylonite_detect_lcd_panel();

		/* GPIO pin assignment */
		gpio_eth_irq	= mfp_to_gpio(MFP_PIN_GPIO9);
		gpio_debug_led1	= mfp_to_gpio(MFP_PIN_GPIO1_2);
		gpio_debug_led2	= mfp_to_gpio(MFP_PIN_GPIO4_2);

		/* WM9713 IRQ */
		wm9713_irq = mfp_to_gpio(MFP_PIN_GPIO15);
	}
}
Commit	Line	Data
2c8086a5	1	/*
	2	* linux/arch/arm/mach-pxa/zylonite_pxa320.c
	3	*
	4	* PXA320 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>
80796f2a	19	#include <linux/gpio.h>
2c8086a5	20
51c62982	21	#include <mach/pxa320.h>
a09e64fb	22	#include <mach/zylonite.h>
2c8086a5	23
3d3934c3	24	#include "generic.h"
2c8086a5	25
	26	static mfp_cfg_t mfp_cfg[] __initdata = {
	27	/* LCD */
	28	GPIO6_2_LCD_LDD_0,
	29	GPIO7_2_LCD_LDD_1,
	30	GPIO8_2_LCD_LDD_2,
	31	GPIO9_2_LCD_LDD_3,
	32	GPIO10_2_LCD_LDD_4,
	33	GPIO11_2_LCD_LDD_5,
	34	GPIO12_2_LCD_LDD_6,
	35	GPIO13_2_LCD_LDD_7,
	36	GPIO63_LCD_LDD_8,
	37	GPIO64_LCD_LDD_9,
	38	GPIO65_LCD_LDD_10,
	39	GPIO66_LCD_LDD_11,
	40	GPIO67_LCD_LDD_12,
	41	GPIO68_LCD_LDD_13,
	42	GPIO69_LCD_LDD_14,
	43	GPIO70_LCD_LDD_15,
	44	GPIO71_LCD_LDD_16,
	45	GPIO72_LCD_LDD_17,
	46	GPIO73_LCD_CS_N,
	47	GPIO74_LCD_VSYNC,
	48	GPIO14_2_LCD_FCLK,
	49	GPIO15_2_LCD_LCLK,
	50	GPIO16_2_LCD_PCLK,
	51	GPIO17_2_LCD_BIAS,
5cca9147	52	GPIO14_PWM3_OUT, /* backlight */
2c8086a5	53
2c8086a5	54	/* FFUART */
a10476d4	55	GPIO41_UART1_RXD \| MFP_LPM_EDGE_FALL,
2c8086a5	56	GPIO42_UART1_TXD,
	57	GPIO43_UART1_CTS,
	58	GPIO44_UART1_DCD,
a10476d4	59	GPIO45_UART1_DSR \| MFP_LPM_EDGE_FALL,
2c8086a5	60	GPIO46_UART1_RI,
	61	GPIO47_UART1_DTR,
	62	GPIO48_UART1_RTS,
	63
	64	/* AC97 */
	65	GPIO34_AC97_SYSCLK,
	66	GPIO35_AC97_SDATA_IN_0,
	67	GPIO37_AC97_SDATA_OUT,
	68	GPIO38_AC97_SYNC,
	69	GPIO39_AC97_BITCLK,
	70	GPIO40_AC97_nACRESET,
15fbc938	71	GPIO36_GPIO, /* SDATA_IN_1 but unused - configure to GPIO */
2c8086a5	72
58d27fcf MB	73	/* SSP3 */
	74	GPIO89_SSP3_SCLK,
	75	GPIO90_SSP3_FRM,
	76	GPIO91_SSP3_TXD,
	77	GPIO92_SSP3_RXD,
	78
768dec4c MB	79	/* WM9713 IRQ */
	80	GPIO15_GPIO,
	81
2c8086a5	82	/* I2C */
	83	GPIO32_I2C_SCL,
	84	GPIO33_I2C_SDA,
	85
	86	/* Keypad */
a10476d4 RK	87	GPIO105_KP_DKIN_0 \| MFP_LPM_EDGE_BOTH,
	88	GPIO106_KP_DKIN_1 \| MFP_LPM_EDGE_BOTH,
	89	GPIO113_KP_MKIN_0 \| MFP_LPM_EDGE_BOTH,
	90	GPIO114_KP_MKIN_1 \| MFP_LPM_EDGE_BOTH,
	91	GPIO115_KP_MKIN_2 \| MFP_LPM_EDGE_BOTH,
	92	GPIO116_KP_MKIN_3 \| MFP_LPM_EDGE_BOTH,
	93	GPIO117_KP_MKIN_4 \| MFP_LPM_EDGE_BOTH,
	94	GPIO118_KP_MKIN_5 \| MFP_LPM_EDGE_BOTH,
	95	GPIO119_KP_MKIN_6 \| MFP_LPM_EDGE_BOTH,
	96	GPIO120_KP_MKIN_7 \| MFP_LPM_EDGE_BOTH,
2c8086a5	97	GPIO121_KP_MKOUT_0,
	98	GPIO122_KP_MKOUT_1,
	99	GPIO123_KP_MKOUT_2,
	100	GPIO124_KP_MKOUT_3,
	101	GPIO125_KP_MKOUT_4,
	102	GPIO126_KP_MKOUT_5,
	103	GPIO127_KP_MKOUT_6,
	104	GPIO5_2_KP_MKOUT_7,
	105
	106	/* Ethernet */
	107	GPIO4_nCS3,
	108	GPIO90_GPIO,
fafc9d3f BW	109
	110	/* MMC1 */
	111	GPIO18_MMC1_DAT0,
a10476d4	112	GPIO19_MMC1_DAT1 \| MFP_LPM_EDGE_BOTH,
fafc9d3f BW	113	GPIO20_MMC1_DAT2,
	114	GPIO21_MMC1_DAT3,
	115	GPIO22_MMC1_CLK,
	116	GPIO23_MMC1_CMD,/* CMD0 for slot 0 */
	117	GPIO31_GPIO, /* CMD1 default as GPIO for slot 0 */
8d33b055 BW	118
	119	/* MMC2 */
	120	GPIO24_MMC2_DAT0,
a10476d4	121	GPIO25_MMC2_DAT1 \| MFP_LPM_EDGE_BOTH,
8d33b055 BW	122	GPIO26_MMC2_DAT2,
	123	GPIO27_MMC2_DAT3,
	124	GPIO28_MMC2_CLK,
	125	GPIO29_MMC2_CMD,
5c9f50e9	126
7ff43535 EM	127	/* USB Host */
	128	GPIO2_2_USBH_PEN,
	129	GPIO3_2_USBH_PWR,
	130
5c9f50e9 EM	131	/* Debug LEDs */
	132	GPIO1_2_GPIO \| MFP_LPM_DRIVE_HIGH,
	133	GPIO4_2_GPIO \| MFP_LPM_DRIVE_HIGH,
2c8086a5	134	};
	135
	136	#define NUM_LCD_DETECT_PINS 7
	137
	138	static int lcd_detect_pins[] __initdata = {
	139	MFP_PIN_GPIO72, /* LCD_LDD_17 - ORIENT */
	140	MFP_PIN_GPIO71, /* LCD_LDD_16 - LCDID[5] */
	141	MFP_PIN_GPIO17_2, /* LCD_BIAS - LCDID[4] */
	142	MFP_PIN_GPIO15_2, /* LCD_LCLK - LCDID[3] */
	143	MFP_PIN_GPIO14_2, /* LCD_FCLK - LCDID[2] */
	144	MFP_PIN_GPIO73, /* LCD_CS_N - LCDID[1] */
	145	MFP_PIN_GPIO74, /* LCD_VSYNC - LCDID[0] */
	146	/*
	147	* set the MFP_PIN_GPIO 14/15/17 to alternate function other than
	148	* GPIO to avoid input level confliction with 14_2, 15_2, 17_2
	149	*/
	150	MFP_PIN_GPIO14,
	151	MFP_PIN_GPIO15,
	152	MFP_PIN_GPIO17,
	153	};
	154
	155	static int lcd_detect_mfpr[] __initdata = {
	156	/* AF0, DS 1X, Pull Neither, Edge Clear */
	157	0x8440, 0x8440, 0x8440, 0x8440, 0x8440, 0x8440, 0x8440,
	158	0xc442, /* Backlight, Pull-Up, AF2 */
	159	0x8445, /* AF5 */
	160	0x8445, /* AF5 */
	161	};
	162
	163	static void __init zylonite_detect_lcd_panel(void)
	164	{
	165	unsigned long mfpr_save[ARRAY_SIZE(lcd_detect_pins)];
	166	int i, gpio, id = 0;
	167
	168	/* save the original MFP settings of these pins and configure them
	169	* as GPIO Input, DS01X, Pull Neither, Edge Clear
	170	*/
	171	for (i = 0; i < ARRAY_SIZE(lcd_detect_pins); i++) {
	172	mfpr_save[i] = pxa3xx_mfp_read(lcd_detect_pins[i]);
	173	pxa3xx_mfp_write(lcd_detect_pins[i], lcd_detect_mfpr[i]);
	174	}
	175
	176	for (i = 0; i < NUM_LCD_DETECT_PINS; i++) {
	177	id = id << 1;
	178	gpio = mfp_to_gpio(lcd_detect_pins[i]);
eb906911	179	gpio_request(gpio, "LCD_ID_PINS");
2c8086a5	180	gpio_direction_input(gpio);
	181
	182	if (gpio_get_value(gpio))
	183	id = id \| 0x1;
eb906911	184	gpio_free(gpio);
2c8086a5	185	}
	186
	187	/* lcd id, flush out bit 1 */
	188	lcd_id = id & 0x3d;
	189
	190	/* lcd orientation, portrait or landscape */
	191	lcd_orientation = (id >> 6) & 0x1;
	192
	193	/* restore the original MFP settings */
	194	for (i = 0; i < ARRAY_SIZE(lcd_detect_pins); i++)
	195	pxa3xx_mfp_write(lcd_detect_pins[i], mfpr_save[i]);
	196	}
	197
	198	void __init zylonite_pxa320_init(void)
	199	{
	200	if (cpu_is_pxa320()) {
	201	/* initialize MFP */
	202	pxa3xx_mfp_config(ARRAY_AND_SIZE(mfp_cfg));
	203
	204	/* detect LCD panel */
	205	zylonite_detect_lcd_panel();
	206
	207	/* GPIO pin assignment */
2c8086a5	208	gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO9);
5c9f50e9 EM	209	gpio_debug_led1 = mfp_to_gpio(MFP_PIN_GPIO1_2);
5c9f50e9 EM	210	gpio_debug_led2 = mfp_to_gpio(MFP_PIN_GPIO4_2);
fafc9d3f	211
768dec4c MB	212	/* WM9713 IRQ */
768dec4c MB	213	wm9713_irq = mfp_to_gpio(MFP_PIN_GPIO15);
2c8086a5	214	}
2c8086a5	215	}