d9ca5839fd
Hook these platforms restart code into the new restart hook rather than using arch_reset(). Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
135 lines
3.3 KiB
C
135 lines
3.3 KiB
C
/*
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* Support for Compaq iPAQ H3600 handheld computer
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*
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* Copyright (c) 2000,1 Compaq Computer Corporation. (Author: Jamey Hicks)
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* Copyright (c) 2009 Dmitry Artamonow <mad_soft@inbox.ru>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/gpio.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/irda.h>
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#include <mach/h3xxx.h>
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#include "generic.h"
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/*
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* helper for sa1100fb
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*/
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static void h3600_lcd_power(int enable)
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{
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if (gpio_request(H3XXX_EGPIO_LCD_ON, "LCD power")) {
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pr_err("%s: can't request H3XXX_EGPIO_LCD_ON\n", __func__);
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goto err1;
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}
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if (gpio_request(H3600_EGPIO_LCD_PCI, "LCD control")) {
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pr_err("%s: can't request H3XXX_EGPIO_LCD_PCI\n", __func__);
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goto err2;
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}
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if (gpio_request(H3600_EGPIO_LCD_5V_ON, "LCD 5v")) {
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pr_err("%s: can't request H3XXX_EGPIO_LCD_5V_ON\n", __func__);
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goto err3;
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}
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if (gpio_request(H3600_EGPIO_LVDD_ON, "LCD 9v/-6.5v")) {
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pr_err("%s: can't request H3600_EGPIO_LVDD_ON\n", __func__);
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goto err4;
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}
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gpio_direction_output(H3XXX_EGPIO_LCD_ON, enable);
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gpio_direction_output(H3600_EGPIO_LCD_PCI, enable);
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gpio_direction_output(H3600_EGPIO_LCD_5V_ON, enable);
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gpio_direction_output(H3600_EGPIO_LVDD_ON, enable);
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gpio_free(H3600_EGPIO_LVDD_ON);
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err4: gpio_free(H3600_EGPIO_LCD_5V_ON);
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err3: gpio_free(H3600_EGPIO_LCD_PCI);
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err2: gpio_free(H3XXX_EGPIO_LCD_ON);
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err1: return;
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}
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static void __init h3600_map_io(void)
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{
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h3xxx_map_io();
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sa1100fb_lcd_power = h3600_lcd_power;
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}
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/*
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* This turns the IRDA power on or off on the Compaq H3600
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*/
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static int h3600_irda_set_power(struct device *dev, unsigned int state)
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{
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gpio_set_value(H3600_EGPIO_IR_ON, state);
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return 0;
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}
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static void h3600_irda_set_speed(struct device *dev, unsigned int speed)
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{
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gpio_set_value(H3600_EGPIO_IR_FSEL, !(speed < 4000000));
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}
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static int h3600_irda_startup(struct device *dev)
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{
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int err = gpio_request(H3600_EGPIO_IR_ON, "IrDA power");
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if (err)
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goto err1;
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err = gpio_direction_output(H3600_EGPIO_IR_ON, 0);
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if (err)
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goto err2;
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err = gpio_request(H3600_EGPIO_IR_FSEL, "IrDA fsel");
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if (err)
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goto err2;
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err = gpio_direction_output(H3600_EGPIO_IR_FSEL, 0);
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if (err)
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goto err3;
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return 0;
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err3: gpio_free(H3600_EGPIO_IR_FSEL);
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err2: gpio_free(H3600_EGPIO_IR_ON);
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err1: return err;
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}
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static void h3600_irda_shutdown(struct device *dev)
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{
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gpio_free(H3600_EGPIO_IR_ON);
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gpio_free(H3600_EGPIO_IR_FSEL);
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}
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static struct irda_platform_data h3600_irda_data = {
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.set_power = h3600_irda_set_power,
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.set_speed = h3600_irda_set_speed,
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.startup = h3600_irda_startup,
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.shutdown = h3600_irda_shutdown,
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};
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static struct gpio_default_state h3600_default_gpio[] = {
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{ H3XXX_GPIO_COM_DCD, GPIO_MODE_IN, "COM DCD" },
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{ H3XXX_GPIO_COM_CTS, GPIO_MODE_IN, "COM CTS" },
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{ H3XXX_GPIO_COM_RTS, GPIO_MODE_OUT0, "COM RTS" },
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};
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static void __init h3600_mach_init(void)
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{
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h3xxx_init_gpio(h3600_default_gpio, ARRAY_SIZE(h3600_default_gpio));
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h3xxx_mach_init();
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sa11x0_register_irda(&h3600_irda_data);
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}
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MACHINE_START(H3600, "Compaq iPAQ H3600")
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.atag_offset = 0x100,
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.map_io = h3600_map_io,
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.init_irq = sa1100_init_irq,
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.timer = &sa1100_timer,
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.init_machine = h3600_mach_init,
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.restart = sa11x0_restart,
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MACHINE_END
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