diff options
Diffstat (limited to 'arch/arm/mach-pxa/palmtx.c')
| -rw-r--r-- | arch/arm/mach-pxa/palmtx.c | 416 |
1 files changed, 416 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/palmtx.c b/arch/arm/mach-pxa/palmtx.c new file mode 100644 index 0000000..408657a --- /dev/null +++ b/arch/arm/mach-pxa/palmtx.c @@ -0,0 +1,416 @@ +/* + * Hardware definitions for PalmTX + * + * Author: Marek Vasut <marek.vasut@gmail.com> + * + * Based on work of: + * Alex Osborne <ato@meshy.org> + * Cristiano P. <cristianop@users.sourceforge.net> + * Jan Herman <2hp@seznam.cz> + * Michal Hrusecky + * + * 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/pda_power.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 <asm/arch/audio.h> +#include <asm/arch/palmtx.h> +#include <asm/arch/mmc.h> +#include <asm/arch/pxafb.h> +#include <asm/arch/pxa-regs.h> +#include <asm/arch/mfp-pxa27x.h> +#include <asm/arch/irda.h> +#include <asm/arch/pxa27x_keypad.h> +#include <asm/arch/udc.h> + +#include "generic.h" +#include "devices.h" + +/****************************************************************************** + * Pin configuration + ******************************************************************************/ +static unsigned long palmtx_pin_config[] __initdata = { + /* MMC */ + GPIO32_MMC_CLK, + GPIO92_MMC_DAT_0, + GPIO109_MMC_DAT_1, + GPIO110_MMC_DAT_2, + GPIO111_MMC_DAT_3, + GPIO112_MMC_CMD, + + /* AC97 */ + GPIO28_AC97_BITCLK, + GPIO29_AC97_SDATA_IN_0, + GPIO30_AC97_SDATA_OUT, + GPIO31_AC97_SYNC, + + /* IrDA */ + GPIO46_FICP_RXD, + GPIO47_FICP_TXD, + + /* PWM */ + GPIO16_PWM0_OUT, + + /* USB */ + GPIO13_GPIO, + + /* PCMCIA */ + GPIO48_nPOE, + GPIO49_nPWE, + GPIO50_nPIOR, + GPIO51_nPIOW, + GPIO85_nPCE_1, + GPIO54_nPCE_2, + GPIO79_PSKTSEL, + GPIO55_nPREG, + GPIO56_nPWAIT, + GPIO57_nIOIS16, +}; + +/****************************************************************************** + * SD/MMC card controller + ******************************************************************************/ +static int palmtx_mci_init(struct device *dev, irq_handler_t palmtx_detect_int, + void *data) +{ + int err = 0; + + /* Setup an interrupt for detecting card insert/remove events */ + err = request_irq(IRQ_GPIO_PALMTX_SD_DETECT_N, palmtx_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__); + return err; + } + + err = gpio_request(GPIO_NR_PALMTX_SD_POWER, "SD_POWER"); + if (err) + goto pwr_err; + + err = gpio_request(GPIO_NR_PALMTX_SD_READONLY, "SD_READONLY"); + if (err) + goto ro_err; + + printk(KERN_DEBUG "%s: irq registered\n", __func__); + + return 0; + +ro_err: + gpio_free(GPIO_NR_PALMTX_SD_POWER); +pwr_err: + free_irq(IRQ_GPIO_PALMTX_SD_DETECT_N, data); + return err; +} + +static void palmtx_mci_exit(struct device *dev, void *data) +{ + gpio_free(GPIO_NR_PALMTX_SD_READONLY); + gpio_free(GPIO_NR_PALMTX_SD_POWER); + free_irq(IRQ_GPIO_PALMTX_SD_DETECT_N, data); +} + +static void palmtx_mci_power(struct device *dev, unsigned int vdd) +{ + struct pxamci_platform_data *p_d = dev->platform_data; + gpio_set_value(GPIO_NR_PALMTX_SD_POWER, p_d->ocr_mask & (1 << vdd)); +} + +static int palmtx_mci_get_ro(struct device *dev) +{ + return gpio_get_value(GPIO_NR_PALMTX_SD_READONLY); +} + +static struct pxamci_platform_data palmtx_mci_platform_data = { + .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, + .setpower = palmtx_mci_power, + .get_ro = palmtx_mci_get_ro, + .init = palmtx_mci_init, + .exit = palmtx_mci_exit, +}; + +/****************************************************************************** + * GPIO keyboard + ******************************************************************************/ +static unsigned int palmtx_matrix_keys[] = { + KEY(0, 0, KEY_POWER), + KEY(0, 1, KEY_F1), + KEY(0, 2, KEY_ENTER), + + KEY(1, 0, KEY_F2), + KEY(1, 1, KEY_F3), + KEY(1, 2, KEY_F4), + + KEY(2, 0, KEY_UP), + KEY(2, 2, KEY_DOWN), + + KEY(3, 0, KEY_RIGHT), + KEY(3, 2, KEY_LEFT), + +}; + +static struct pxa27x_keypad_platform_data palmtx_keypad_platform_data = { + .matrix_key_rows = 4, + .matrix_key_cols = 3, + .matrix_key_map = palmtx_matrix_keys, + .matrix_key_map_size = ARRAY_SIZE(palmtx_matrix_keys), + + .debounce_interval = 30, +}; + +/****************************************************************************** + * GPIO keys + ******************************************************************************/ +static struct gpio_keys_button palmtx_pxa_buttons[] = { + {KEY_F8, GPIO_NR_PALMTX_HOTSYNC_BUTTON_N, 1, "HotSync Button" }, +}; + +static struct gpio_keys_platform_data palmtx_pxa_keys_data = { + .buttons = palmtx_pxa_buttons, + .nbuttons = ARRAY_SIZE(palmtx_pxa_buttons), +}; + +static struct platform_device palmtx_pxa_keys = { + .name = "gpio-keys", + .id = -1, + .dev = { + .platform_data = &palmtx_pxa_keys_data, + }, +}; + +/****************************************************************************** + * Backlight + ******************************************************************************/ +static int palmtx_backlight_init(struct device *dev) +{ + int ret; + + ret = gpio_request(GPIO_NR_PALMTX_BL_POWER, "BL POWER"); + if (ret) + goto err; + ret = gpio_request(GPIO_NR_PALMTX_LCD_POWER, "LCD POWER"); + if (ret) + goto err2; + + return 0; +err2: + gpio_free(GPIO_NR_PALMTX_BL_POWER); +err: + return ret; +} + +static int palmtx_backlight_notify(int brightness) +{ + gpio_set_value(GPIO_NR_PALMTX_BL_POWER, brightness); + gpio_set_value(GPIO_NR_PALMTX_LCD_POWER, brightness); + return brightness; +} + +static void palmtx_backlight_exit(struct device *dev) +{ + gpio_free(GPIO_NR_PALMTX_BL_POWER); + gpio_free(GPIO_NR_PALMTX_LCD_POWER); +} + +static struct platform_pwm_backlight_data palmtx_backlight_data = { + .pwm_id = 0, + .max_brightness = PALMTX_MAX_INTENSITY, + .dft_brightness = PALMTX_MAX_INTENSITY, + .pwm_period_ns = PALMTX_PERIOD_NS, + .init = palmtx_backlight_init, + .notify = palmtx_backlight_notify, + .exit = palmtx_backlight_exit, +}; + +static struct platform_device palmtx_backlight = { + .name = "pwm-backlight", + .dev = { + .parent = &pxa27x_device_pwm0.dev, + .platform_data = &palmtx_backlight_data, + }, +}; + +/****************************************************************************** + * IrDA + ******************************************************************************/ +static void palmtx_irda_transceiver_mode(struct device *dev, int mode) +{ + gpio_set_value(GPIO_NR_PALMTX_IR_DISABLE, mode & IR_OFF); + pxa2xx_transceiver_mode(dev, mode); +} + +static struct pxaficp_platform_data palmtx_ficp_platform_data = { + .transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF, + .transceiver_mode = palmtx_irda_transceiver_mode, +}; + +/****************************************************************************** + * UDC + ******************************************************************************/ +static void palmtx_udc_command(int cmd) +{ + gpio_set_value(GPIO_NR_PALMTX_USB_POWER, !cmd); + udelay(50); + gpio_set_value(GPIO_NR_PALMTX_USB_PULLUP, !cmd); +} + +static struct pxa2xx_udc_mach_info palmtx_udc_info __initdata = { + .gpio_vbus = GPIO_NR_PALMTX_USB_DETECT_N, + .gpio_vbus_inverted = 1, + .udc_command = palmtx_udc_command, +}; + +/****************************************************************************** + * Power supply + ******************************************************************************/ +static int power_supply_init(struct device *dev) +{ + int ret; + + ret = gpio_request(GPIO_NR_PALMTX_POWER_DETECT, "CABLE_STATE_AC"); + if (ret) + goto err_cs_ac; + + ret = gpio_request(GPIO_NR_PALMTX_USB_DETECT_N, "CABLE_STATE_USB"); + if (ret) + goto err_cs_usb; + + return 0; + +err_cs_usb: + gpio_free(GPIO_NR_PALMTX_POWER_DETECT); +err_cs_ac: + return ret; +} + +static int palmtx_is_ac_online(void) +{ + return gpio_get_value(GPIO_NR_PALMTX_POWER_DETECT); +} + +static int palmtx_is_usb_online(void) +{ + return !gpio_get_value(GPIO_NR_PALMTX_USB_DETECT_N); +} + +static void power_supply_exit(struct device *dev) +{ + gpio_free(GPIO_NR_PALMTX_USB_DETECT_N); + gpio_free(GPIO_NR_PALMTX_POWER_DETECT); +} + +static char *palmtx_supplicants[] = { + "main-battery", +}; + +static struct pda_power_pdata power_supply_info = { + .init = power_supply_init, + .is_ac_online = palmtx_is_ac_online, + .is_usb_online = palmtx_is_usb_online, + .exit = power_supply_exit, + .supplied_to = palmtx_supplicants, + .num_supplicants = ARRAY_SIZE(palmtx_supplicants), +}; + +static struct platform_device power_supply = { + .name = "pda-power", + .id = -1, + .dev = { + .platform_data = &power_supply_info, + }, +}; + +/****************************************************************************** + * Framebuffer + ******************************************************************************/ +static struct pxafb_mode_info palmtx_lcd_modes[] = { +{ + .pixclock = 57692, + .xres = 320, + .yres = 480, + .bpp = 16, + + .left_margin = 32, + .right_margin = 1, + .upper_margin = 7, + .lower_margin = 1, + + .hsync_len = 4, + .vsync_len = 1, +}, +}; + +static struct pxafb_mach_info palmtx_lcd_screen = { + .modes = palmtx_lcd_modes, + .num_modes = ARRAY_SIZE(palmtx_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) + &palmtx_pxa_keys, +#endif + &palmtx_backlight, + &power_supply, +}; + +static struct map_desc palmtx_io_desc[] __initdata = { +{ + .virtual = PALMTX_PCMCIA_VIRT, + .pfn = __phys_to_pfn(PALMTX_PCMCIA_PHYS), + .length = PALMTX_PCMCIA_SIZE, + .type = MT_DEVICE +}, +}; + +static void __init palmtx_map_io(void) +{ + pxa_map_io(); + iotable_init(palmtx_io_desc, ARRAY_SIZE(palmtx_io_desc)); +} + +static void __init palmtx_init(void) +{ + pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtx_pin_config)); + + set_pxa_fb_info(&palmtx_lcd_screen); + pxa_set_mci_info(&palmtx_mci_platform_data); + pxa_set_udc_info(&palmtx_udc_info); + pxa_set_ac97_info(NULL); + pxa_set_ficp_info(&palmtx_ficp_platform_data); + pxa_set_keypad_info(&palmtx_keypad_platform_data); + + platform_add_devices(devices, ARRAY_SIZE(devices)); +} + +MACHINE_START(PALMTX, "Palm T|X") + .phys_io = PALMTX_PHYS_IO_START, + .io_pg_offst = io_p2v(0x40000000), + .boot_params = 0xa0000100, + .map_io = palmtx_map_io, + .init_irq = pxa27x_init_irq, + .timer = &pxa_timer, + .init_machine = palmtx_init +MACHINE_END |
