diff options
Diffstat (limited to 'arch/arm/mach-sa1100/h3100.c')
| -rw-r--r-- | arch/arm/mach-sa1100/h3100.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/arch/arm/mach-sa1100/h3100.c b/arch/arm/mach-sa1100/h3100.c new file mode 100644 index 000000000000..0c7cea0dc013 --- /dev/null +++ b/arch/arm/mach-sa1100/h3100.c @@ -0,0 +1,95 @@ +/* + * Support for Compaq iPAQ H3100 handheld computer + * + * Copyright (c) 2000,1 Compaq Computer Corporation. (Author: Jamey Hicks) + * Copyright (c) 2009 Dmitry Artamonow <mad_soft@inbox.ru> + * + * 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/init.h> +#include <linux/kernel.h> +#include <linux/gpio.h> + +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/irda.h> + +#include <mach/h3xxx.h> + +#include "generic.h" + +/* + * helper for sa1100fb + */ +static void h3100_lcd_power(int enable) +{ + if (!gpio_request(H3XXX_EGPIO_LCD_ON, "LCD ON")) { + gpio_set_value(H3100_GPIO_LCD_3V_ON, enable); + gpio_direction_output(H3XXX_EGPIO_LCD_ON, enable); + gpio_free(H3XXX_EGPIO_LCD_ON); + } else { + pr_err("%s: can't request H3XXX_EGPIO_LCD_ON\n", __func__); + } +} + + +static void __init h3100_map_io(void) +{ + h3xxx_map_io(); + + sa1100fb_lcd_power = h3100_lcd_power; + + /* Older bootldrs put GPIO2-9 in alternate mode on the + assumption that they are used for video */ + GAFR &= ~0x000001fb; +} + +/* + * This turns the IRDA power on or off on the Compaq H3100 + */ +static int h3100_irda_set_power(struct device *dev, unsigned int state) +{ + gpio_set_value(H3100_GPIO_IR_ON, state); + return 0; +} + +static void h3100_irda_set_speed(struct device *dev, unsigned int speed) +{ + gpio_set_value(H3100_GPIO_IR_FSEL, !(speed < 4000000)); +} + +static struct irda_platform_data h3100_irda_data = { + .set_power = h3100_irda_set_power, + .set_speed = h3100_irda_set_speed, +}; + +static struct gpio_default_state h3100_default_gpio[] = { + { H3100_GPIO_IR_ON, GPIO_MODE_OUT0, "IrDA power" }, + { H3100_GPIO_IR_FSEL, GPIO_MODE_OUT0, "IrDA fsel" }, + { H3XXX_GPIO_COM_DCD, GPIO_MODE_IN, "COM DCD" }, + { H3XXX_GPIO_COM_CTS, GPIO_MODE_IN, "COM CTS" }, + { H3XXX_GPIO_COM_RTS, GPIO_MODE_OUT0, "COM RTS" }, + { H3100_GPIO_LCD_3V_ON, GPIO_MODE_OUT0, "LCD 3v" }, +}; + +static void __init h3100_mach_init(void) +{ + h3xxx_init_gpio(h3100_default_gpio, ARRAY_SIZE(h3100_default_gpio)); + h3xxx_mach_init(); + sa11x0_register_irda(&h3100_irda_data); +} + +MACHINE_START(H3100, "Compaq iPAQ H3100") + .phys_io = 0x80000000, + .io_pg_offst = ((0xf8000000) >> 18) & 0xfffc, + .boot_params = 0xc0000100, + .map_io = h3100_map_io, + .init_irq = sa1100_init_irq, + .timer = &sa1100_timer, + .init_machine = h3100_mach_init, +MACHINE_END + |