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Commit 54088bf5 authored by Marek Vasut's avatar Marek Vasut Committed by Eric Miao
Browse files

[ARM] pxa: Palm Tungsten E2 basic support 



This contains support for keypad, MMC, AC97, LCD and backlight.

Signed-off-by: default avatarMarek Vasut <marek.vasut@gmail.com>
Signed-off-by: default avatarEric Miao <eric.miao@marvell.com>
parent c9be0e39

MAINTAINERS

+1 −1
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@@ -636,7 +636,7 @@ P: Dirk Opfer 
M:	dirk@opfer-online.de

S:	Maintained



ARM/PALMTX,PALMT5,PALMLD SUPPORT

ARM/PALMTX,PALMT5,PALMLD,PALMTE2 SUPPORT

P:	Marek Vasut

M:	marek.vasut@gmail.com

W:	http://hackndev.com

arch/arm/mach-pxa/Kconfig

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@@ -343,6 +343,15 @@ config ARCH_PXA_PALM 
	bool "PXA based Palm PDAs"

	select HAVE_PWM



config MACH_PALMTE2

	bool "Palm Tungsten|E2"

	default y

	depends on ARCH_PXA_PALM

	select PXA25x

	help

	  Say Y here if you intend to run this kernel on a Palm Tungsten|E2

	  handheld computer.



config MACH_PALMT5

	bool "Palm Tungsten|T5"

	default y

arch/arm/mach-pxa/Makefile

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@@ -57,6 +57,7 @@ obj-$(CONFIG_MACH_E740) += e740.o 
obj-$(CONFIG_MACH_E750)		+= e750.o

obj-$(CONFIG_MACH_E400)		+= e400.o

obj-$(CONFIG_MACH_E800)		+= e800.o

obj-$(CONFIG_MACH_PALMTE2)	+= palmte2.o

obj-$(CONFIG_MACH_PALMT5)	+= palmt5.o

obj-$(CONFIG_MACH_PALMTX)	+= palmtx.o

obj-$(CONFIG_MACH_PALMLD)	+= palmld.o

arch/arm/mach-pxa/include/mach/palmte2.h

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/*

 * GPIOs and interrupts for Palm Tungsten|E2 Handheld Computer

 *

 * Author:

 *		Carlos Eduardo Medaglia Dyonisio <cadu@nerdfeliz.com>

 *

 * 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.

 *

 */



#ifndef _INCLUDE_PALMTE2_H_

#define _INCLUDE_PALMTE2_H_



/** HERE ARE GPIOs **/



/* GPIOs */

#define GPIO_NR_PALMTE2_SD_DETECT_N		10

#define GPIO_NR_PALMTE2_SD_POWER		55

#define GPIO_NR_PALMTE2_SD_READONLY		51



/* KEYS */

#define GPIO_NR_PALMTE2_KEY_NOTES	5

#define GPIO_NR_PALMTE2_KEY_TASKS	7

#define GPIO_NR_PALMTE2_KEY_CALENDAR	11

#define GPIO_NR_PALMTE2_KEY_CONTACTS	13

#define GPIO_NR_PALMTE2_KEY_CENTER	14

#define GPIO_NR_PALMTE2_KEY_LEFT	19

#define GPIO_NR_PALMTE2_KEY_RIGHT	20

#define GPIO_NR_PALMTE2_KEY_DOWN	21

#define GPIO_NR_PALMTE2_KEY_UP		22



/** HERE ARE INIT VALUES **/



/* BACKLIGHT */

#define PALMTE2_MAX_INTENSITY		0xFE

#define PALMTE2_DEFAULT_INTENSITY	0x7E

#define PALMTE2_LIMIT_MASK		0x7F

#define PALMTE2_PRESCALER		0x3F

#define PALMTE2_PERIOD_NS		3500



#endif

arch/arm/mach-pxa/palmte2.c

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/*

 * Hardware definitions for Palm Tungsten|E2

 *

 * Author:

 *	Carlos Eduardo Medaglia Dyonisio <cadu@nerdfeliz.com>

 *

 * Rewrite for mainline:

 *	Marek Vasut <marek.vasut@gmail.com>

 *

 * 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.

 *

 * (find more info at www.hackndev.com)

 *

 */



#include <linux/platform_device.h>

#include <linux/delay.h>

#include <linux/irq.h>

#include <linux/gpio_keys.h>

#include <linux/input.h>

#include <linux/pwm_backlight.h>

#include <linux/gpio.h>



#include <asm/mach-types.h>

#include <asm/mach/arch.h>

#include <asm/mach/map.h>



#include <mach/audio.h>

#include <mach/palmte2.h>

#include <mach/mmc.h>

#include <mach/pxafb.h>

#include <mach/mfp-pxa25x.h>



#include "generic.h"

#include "devices.h"



/******************************************************************************

 * Pin configuration

 ******************************************************************************/

static unsigned long palmte2_pin_config[] __initdata = {

	/* MMC */

	GPIO6_MMC_CLK,

	GPIO8_MMC_CS0,

	GPIO10_GPIO,	/* SD detect */

	GPIO55_GPIO,	/* SD power */

	GPIO51_GPIO,	/* SD r/o switch */



	/* AC97 */

	GPIO28_AC97_BITCLK,

	GPIO29_AC97_SDATA_IN_0,

	GPIO30_AC97_SDATA_OUT,

	GPIO31_AC97_SYNC,



	/* PWM */

	GPIO16_PWM0_OUT,



	/* LCD */

	GPIO58_LCD_LDD_0,

	GPIO59_LCD_LDD_1,

	GPIO60_LCD_LDD_2,

	GPIO61_LCD_LDD_3,

	GPIO62_LCD_LDD_4,

	GPIO63_LCD_LDD_5,

	GPIO64_LCD_LDD_6,

	GPIO65_LCD_LDD_7,

	GPIO66_LCD_LDD_8,

	GPIO67_LCD_LDD_9,

	GPIO68_LCD_LDD_10,

	GPIO69_LCD_LDD_11,

	GPIO70_LCD_LDD_12,

	GPIO71_LCD_LDD_13,

	GPIO72_LCD_LDD_14,

	GPIO73_LCD_LDD_15,

	GPIO74_LCD_FCLK,

	GPIO75_LCD_LCLK,

	GPIO76_LCD_PCLK,



	/* GPIO KEYS */

	GPIO5_GPIO,	/* notes */

	GPIO7_GPIO,	/* tasks */

	GPIO11_GPIO,	/* calendar */

	GPIO13_GPIO,	/* contacts */

	GPIO14_GPIO,	/* center */

	GPIO19_GPIO,	/* left */

	GPIO20_GPIO,	/* right */

	GPIO21_GPIO,	/* down */

	GPIO22_GPIO,	/* up */



	/* MISC */

	GPIO1_RST,	/* reset */

};



/******************************************************************************

 * SD/MMC card controller

 ******************************************************************************/

static int palmte2_mci_init(struct device *dev,

				irq_handler_t palmte2_detect_int, void *data)

{

	int err = 0;



	/* Setup an interrupt for detecting card insert/remove events */

	err = gpio_request(GPIO_NR_PALMTE2_SD_DETECT_N, "SD IRQ");

	if (err)

		goto err;

	err = gpio_direction_input(GPIO_NR_PALMTE2_SD_DETECT_N);

	if (err)

		goto err2;

	err = request_irq(gpio_to_irq(GPIO_NR_PALMTE2_SD_DETECT_N),

			palmte2_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM |

			IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,

			"SD/MMC card detect", data);

	if (err) {

		printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n",

				__func__);

		goto err2;

	}



	err = gpio_request(GPIO_NR_PALMTE2_SD_POWER, "SD_POWER");

	if (err)

		goto err3;

	err = gpio_direction_output(GPIO_NR_PALMTE2_SD_POWER, 0);

	if (err)

		goto err4;



	err = gpio_request(GPIO_NR_PALMTE2_SD_READONLY, "SD_READONLY");

	if (err)

		goto err4;

	err = gpio_direction_input(GPIO_NR_PALMTE2_SD_READONLY);

	if (err)

		goto err5;



	printk(KERN_DEBUG "%s: irq registered\n", __func__);



	return 0;



err5:

	gpio_free(GPIO_NR_PALMTE2_SD_READONLY);

err4:

	gpio_free(GPIO_NR_PALMTE2_SD_POWER);

err3:

	free_irq(gpio_to_irq(GPIO_NR_PALMTE2_SD_DETECT_N), data);

err2:

	gpio_free(GPIO_NR_PALMTE2_SD_DETECT_N);

err:

	return err;

}



static void palmte2_mci_exit(struct device *dev, void *data)

{

	gpio_free(GPIO_NR_PALMTE2_SD_READONLY);

	gpio_free(GPIO_NR_PALMTE2_SD_POWER);

	free_irq(gpio_to_irq(GPIO_NR_PALMTE2_SD_DETECT_N), data);

	gpio_free(GPIO_NR_PALMTE2_SD_DETECT_N);

}



static void palmte2_mci_power(struct device *dev, unsigned int vdd)

{

	struct pxamci_platform_data *p_d = dev->platform_data;

	gpio_set_value(GPIO_NR_PALMTE2_SD_POWER, p_d->ocr_mask & (1 << vdd));

}



static int palmte2_mci_get_ro(struct device *dev)

{

	return gpio_get_value(GPIO_NR_PALMTE2_SD_READONLY);

}



static struct pxamci_platform_data palmte2_mci_platform_data = {

	.ocr_mask	= MMC_VDD_32_33 | MMC_VDD_33_34,

	.setpower	= palmte2_mci_power,

	.get_ro		= palmte2_mci_get_ro,

	.init 		= palmte2_mci_init,

	.exit		= palmte2_mci_exit,

};



/******************************************************************************

 * GPIO keys

 ******************************************************************************/

static struct gpio_keys_button palmte2_pxa_buttons[] = {

	{KEY_F1,	GPIO_NR_PALMTE2_KEY_CONTACTS,	1, "Contacts" },

	{KEY_F2,	GPIO_NR_PALMTE2_KEY_CALENDAR,	1, "Calendar" },

	{KEY_F3,	GPIO_NR_PALMTE2_KEY_TASKS,	1, "Tasks" },

	{KEY_F4,	GPIO_NR_PALMTE2_KEY_NOTES,	1, "Notes" },

	{KEY_ENTER,	GPIO_NR_PALMTE2_KEY_CENTER,	1, "Center" },

	{KEY_LEFT,	GPIO_NR_PALMTE2_KEY_LEFT,	1, "Left" },

	{KEY_RIGHT,	GPIO_NR_PALMTE2_KEY_RIGHT,	1, "Right" },

	{KEY_DOWN,	GPIO_NR_PALMTE2_KEY_DOWN,	1, "Down" },

	{KEY_UP,	GPIO_NR_PALMTE2_KEY_UP,		1, "Up" },

};



static struct gpio_keys_platform_data palmte2_pxa_keys_data = {

	.buttons	= palmte2_pxa_buttons,

	.nbuttons	= ARRAY_SIZE(palmte2_pxa_buttons),

};



static struct platform_device palmte2_pxa_keys = {

	.name	= "gpio-keys",

	.id	= -1,

	.dev	= {

		.platform_data = &palmte2_pxa_keys_data,

	},

};



/******************************************************************************

 * Backlight

 ******************************************************************************/

static struct platform_pwm_backlight_data palmte2_backlight_data = {

	.pwm_id		= 0,

	.max_brightness	= PALMTE2_MAX_INTENSITY,

	.dft_brightness	= PALMTE2_MAX_INTENSITY,

	.pwm_period_ns	= PALMTE2_PERIOD_NS,

};



static struct platform_device palmte2_backlight = {

	.name	= "pwm-backlight",

	.dev	= {

		.parent		= &pxa25x_device_pwm0.dev,

		.platform_data	= &palmte2_backlight_data,

	},

};



/******************************************************************************

 * Framebuffer

 ******************************************************************************/

static struct pxafb_mode_info palmte2_lcd_modes[] = {

{

	.pixclock	= 77757,

	.xres		= 320,

	.yres		= 320,

	.bpp		= 16,



	.left_margin	= 28,

	.right_margin	= 7,

	.upper_margin	= 7,

	.lower_margin	= 5,



	.hsync_len	= 4,

	.vsync_len	= 1,

},

};



static struct pxafb_mach_info palmte2_lcd_screen = {

	.modes		= palmte2_lcd_modes,

	.num_modes	= ARRAY_SIZE(palmte2_lcd_modes),

	.lcd_conn	= LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,

};



/******************************************************************************

 * Machine init

 ******************************************************************************/

static struct platform_device *devices[] __initdata = {

#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)

	&palmte2_pxa_keys,

#endif

	&palmte2_backlight,

};



static void __init palmte2_init(void)

{

	pxa2xx_mfp_config(ARRAY_AND_SIZE(palmte2_pin_config));



	set_pxa_fb_info(&palmte2_lcd_screen);

	pxa_set_mci_info(&palmte2_mci_platform_data);

	pxa_set_ac97_info(NULL);



	platform_add_devices(devices, ARRAY_SIZE(devices));

}



MACHINE_START(PALMTE2, "Palm Tungsten|E2")

	.phys_io	= 0x40000000,

	.io_pg_offst	= (io_p2v(0x40000000) >> 18) & 0xfffc,

	.boot_params	= 0xa0000100,

	.map_io		= pxa_map_io,

	.init_irq	= pxa25x_init_irq,

	.timer		= &pxa_timer,

	.init_machine	= palmte2_init

MACHINE_END