diff options
Diffstat (limited to 'arch/arm/mach-sa1100/h3100.c')
| -rw-r--r-- | arch/arm/mach-sa1100/h3100.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/arch/arm/mach-sa1100/h3100.c b/arch/arm/mach-sa1100/h3100.c new file mode 100644 index 00000000000..4c7778ee57a --- /dev/null +++ b/arch/arm/mach-sa1100/h3100.c @@ -0,0 +1,119 @@ +/* + * Hardware definitions for Compaq iPAQ H3xxx Handheld Computers + * + * Copyright 2000,1 Compaq Computer Corporation. + * + * Use consistent with the GNU GPL is permitted, + * provided that this copyright notice is + * preserved in its entirety in all copies and derived works. + * + * COMPAQ COMPUTER CORPORATION MAKES NO WARRANTIES, EXPRESSED OR IMPLIED, + * AS TO THE USEFULNESS OR CORRECTNESS OF THIS CODE OR ITS + * FITNESS FOR ANY PARTICULAR PURPOSE. + * + * Author: Jamey Hicks. + * + * History: + * + * 2001-10-?? Andrew Christian Added support for iPAQ H3800 + * and abstracted EGPIO interface. + * + */ +#include <linux/module.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/tty.h> +#include <linux/pm.h> +#include <linux/device.h> +#include <linux/mfd/htc-egpio.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/serial_core.h> +#include <linux/gpio.h> +#include <linux/platform_device.h> + +#include <asm/irq.h> +#include <mach/hardware.h> +#include <asm/mach-types.h> +#include <asm/setup.h> + +#include <asm/mach/irq.h> +#include <asm/mach/arch.h> +#include <asm/mach/flash.h> +#include <asm/mach/irda.h> +#include <asm/mach/map.h> +#include <asm/mach/serial_sa1100.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); + } +} + + +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 + |