diff options
Diffstat (limited to 'kernel/arch/arm/mach-omap1/board-palmz71.c')
| -rw-r--r-- | kernel/arch/arm/mach-omap1/board-palmz71.c | 304 |
1 files changed, 304 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-omap1/board-palmz71.c b/kernel/arch/arm/mach-omap1/board-palmz71.c new file mode 100644 index 000000000..470e12d67 --- /dev/null +++ b/kernel/arch/arm/mach-omap1/board-palmz71.c @@ -0,0 +1,304 @@ +/* + * linux/arch/arm/mach-omap1/board-palmz71.c + * + * Modified from board-generic.c + * + * Support for the Palm Zire71 PDA. + * + * Original version : Laurent Gonzalez + * + * Modified for zire71 : Marek Vasut + * + * 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/delay.h> +#include <linux/gpio.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/notifier.h> +#include <linux/clk.h> +#include <linux/irq.h> +#include <linux/input.h> +#include <linux/interrupt.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/physmap.h> +#include <linux/omapfb.h> +#include <linux/spi/spi.h> +#include <linux/spi/ads7846.h> +#include <linux/platform_data/omap1_bl.h> + +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> + +#include <mach/flash.h> +#include <mach/mux.h> +#include <linux/omap-dma.h> +#include <mach/tc.h> +#include <linux/platform_data/keypad-omap.h> + +#include <mach/hardware.h> +#include <mach/usb.h> + +#include "common.h" + +#define PALMZ71_USBDETECT_GPIO 0 +#define PALMZ71_PENIRQ_GPIO 6 +#define PALMZ71_MMC_WP_GPIO 8 +#define PALMZ71_HDQ_GPIO 11 + +#define PALMZ71_HOTSYNC_GPIO OMAP_MPUIO(1) +#define PALMZ71_CABLE_GPIO OMAP_MPUIO(2) +#define PALMZ71_SLIDER_GPIO OMAP_MPUIO(3) +#define PALMZ71_MMC_IN_GPIO OMAP_MPUIO(4) + +static const unsigned int palmz71_keymap[] = { + KEY(0, 0, KEY_F1), + KEY(1, 0, KEY_F2), + KEY(2, 0, KEY_F3), + KEY(3, 0, KEY_F4), + KEY(4, 0, KEY_POWER), + KEY(0, 1, KEY_LEFT), + KEY(1, 1, KEY_DOWN), + KEY(2, 1, KEY_UP), + KEY(3, 1, KEY_RIGHT), + KEY(4, 1, KEY_ENTER), + KEY(0, 2, KEY_CAMERA), +}; + +static const struct matrix_keymap_data palmz71_keymap_data = { + .keymap = palmz71_keymap, + .keymap_size = ARRAY_SIZE(palmz71_keymap), +}; + +static struct omap_kp_platform_data palmz71_kp_data = { + .rows = 8, + .cols = 8, + .keymap_data = &palmz71_keymap_data, + .rep = true, + .delay = 80, +}; + +static struct resource palmz71_kp_resources[] = { + [0] = { + .start = INT_KEYBOARD, + .end = INT_KEYBOARD, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device palmz71_kp_device = { + .name = "omap-keypad", + .id = -1, + .dev = { + .platform_data = &palmz71_kp_data, + }, + .num_resources = ARRAY_SIZE(palmz71_kp_resources), + .resource = palmz71_kp_resources, +}; + +static struct mtd_partition palmz71_rom_partitions[] = { + /* PalmOS "Small ROM", contains the bootloader and the debugger */ + { + .name = "smallrom", + .offset = 0, + .size = 0xa000, + .mask_flags = MTD_WRITEABLE, + }, + /* PalmOS "Big ROM", a filesystem with all the OS code and data */ + { + .name = "bigrom", + .offset = SZ_128K, + /* + * 0x5f0000 bytes big in the multi-language ("EFIGS") version, + * 0x7b0000 bytes in the English-only ("enUS") version. + */ + .size = 0x7b0000, + .mask_flags = MTD_WRITEABLE, + }, +}; + +static struct physmap_flash_data palmz71_rom_data = { + .width = 2, + .set_vpp = omap1_set_vpp, + .parts = palmz71_rom_partitions, + .nr_parts = ARRAY_SIZE(palmz71_rom_partitions), +}; + +static struct resource palmz71_rom_resource = { + .start = OMAP_CS0_PHYS, + .end = OMAP_CS0_PHYS + SZ_8M - 1, + .flags = IORESOURCE_MEM, +}; + +static struct platform_device palmz71_rom_device = { + .name = "physmap-flash", + .id = -1, + .dev = { + .platform_data = &palmz71_rom_data, + }, + .num_resources = 1, + .resource = &palmz71_rom_resource, +}; + +static struct platform_device palmz71_lcd_device = { + .name = "lcd_palmz71", + .id = -1, +}; + +static struct platform_device palmz71_spi_device = { + .name = "spi_palmz71", + .id = -1, +}; + +static struct omap_backlight_config palmz71_backlight_config = { + .default_intensity = 0xa0, +}; + +static struct platform_device palmz71_backlight_device = { + .name = "omap-bl", + .id = -1, + .dev = { + .platform_data = &palmz71_backlight_config, + }, +}; + +static struct platform_device *devices[] __initdata = { + &palmz71_rom_device, + &palmz71_kp_device, + &palmz71_lcd_device, + &palmz71_spi_device, + &palmz71_backlight_device, +}; + +static int +palmz71_get_pendown_state(void) +{ + return !gpio_get_value(PALMZ71_PENIRQ_GPIO); +} + +static const struct ads7846_platform_data palmz71_ts_info = { + .model = 7846, + .vref_delay_usecs = 100, /* internal, no capacitor */ + .x_plate_ohms = 419, + .y_plate_ohms = 486, + .get_pendown_state = palmz71_get_pendown_state, +}; + +static struct spi_board_info __initdata palmz71_boardinfo[] = { { + /* MicroWire (bus 2) CS0 has an ads7846e */ + .modalias = "ads7846", + .platform_data = &palmz71_ts_info, + .max_speed_hz = 120000 /* max sample rate at 3V */ + * 26 /* command + data + overhead */, + .bus_num = 2, + .chip_select = 0, +} }; + +static struct omap_usb_config palmz71_usb_config __initdata = { + .register_dev = 1, /* Mini-B only receptacle */ + .hmc_mode = 0, + .pins[0] = 2, +}; + +static struct omap_lcd_config palmz71_lcd_config __initdata = { + .ctrl_name = "internal", +}; + +static irqreturn_t +palmz71_powercable(int irq, void *dev_id) +{ + if (gpio_get_value(PALMZ71_USBDETECT_GPIO)) { + printk(KERN_INFO "PM: Power cable connected\n"); + irq_set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO), + IRQ_TYPE_EDGE_FALLING); + } else { + printk(KERN_INFO "PM: Power cable disconnected\n"); + irq_set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO), + IRQ_TYPE_EDGE_RISING); + } + return IRQ_HANDLED; +} + +static void __init +omap_mpu_wdt_mode(int mode) +{ + if (mode) + omap_writew(0x8000, OMAP_WDT_TIMER_MODE); + else { + omap_writew(0x00f5, OMAP_WDT_TIMER_MODE); + omap_writew(0x00a0, OMAP_WDT_TIMER_MODE); + } +} + +static void __init +palmz71_gpio_setup(int early) +{ + if (early) { + /* Only set GPIO1 so we have a working serial */ + gpio_direction_output(1, 1); + } else { + /* Set MMC/SD host WP pin as input */ + if (gpio_request(PALMZ71_MMC_WP_GPIO, "MMC WP") < 0) { + printk(KERN_ERR "Could not reserve WP GPIO!\n"); + return; + } + gpio_direction_input(PALMZ71_MMC_WP_GPIO); + + /* Monitor the Power-cable-connected signal */ + if (gpio_request(PALMZ71_USBDETECT_GPIO, "USB detect") < 0) { + printk(KERN_ERR + "Could not reserve cable signal GPIO!\n"); + return; + } + gpio_direction_input(PALMZ71_USBDETECT_GPIO); + if (request_irq(gpio_to_irq(PALMZ71_USBDETECT_GPIO), + palmz71_powercable, 0, "palmz71-cable", NULL)) + printk(KERN_ERR + "IRQ request for power cable failed!\n"); + palmz71_powercable(gpio_to_irq(PALMZ71_USBDETECT_GPIO), NULL); + } +} + +static void __init +omap_palmz71_init(void) +{ + /* mux pins for uarts */ + omap_cfg_reg(UART1_TX); + omap_cfg_reg(UART1_RTS); + omap_cfg_reg(UART2_TX); + omap_cfg_reg(UART2_RTS); + omap_cfg_reg(UART3_TX); + omap_cfg_reg(UART3_RX); + + palmz71_gpio_setup(1); + omap_mpu_wdt_mode(0); + + platform_add_devices(devices, ARRAY_SIZE(devices)); + + palmz71_boardinfo[0].irq = gpio_to_irq(PALMZ71_PENIRQ_GPIO); + spi_register_board_info(palmz71_boardinfo, + ARRAY_SIZE(palmz71_boardinfo)); + omap1_usb_init(&palmz71_usb_config); + omap_serial_init(); + omap_register_i2c_bus(1, 100, NULL, 0); + palmz71_gpio_setup(0); + + omapfb_set_lcd_config(&palmz71_lcd_config); +} + +MACHINE_START(OMAP_PALMZ71, "OMAP310 based Palm Zire71") + .atag_offset = 0x100, + .map_io = omap15xx_map_io, + .init_early = omap1_init_early, + .init_irq = omap1_init_irq, + .init_machine = omap_palmz71_init, + .init_late = omap1_init_late, + .init_time = omap1_timer_init, + .restart = omap1_restart, +MACHINE_END |