diff options
author | Marek Vasut <marek.vasut@gmail.com> | 2009-03-24 00:29:29 +0100 |
---|---|---|
committer | Eric Miao <eric.miao@marvell.com> | 2009-04-04 04:26:33 +0200 |
commit | 54088bf50f31e5f20e005922dae8948f9f856b79 (patch) | |
tree | 3dbd716a51e170749f121dfc4fcde4dce77b6b50 /arch/arm/mach-pxa/palmte2.c | |
parent | [ARM] pxa/em-x270: add libertas device registration (diff) | |
download | linux-54088bf50f31e5f20e005922dae8948f9f856b79.tar.xz linux-54088bf50f31e5f20e005922dae8948f9f856b79.zip |
[ARM] pxa: Palm Tungsten E2 basic support
This contains support for keypad, MMC, AC97, LCD and backlight.
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Diffstat (limited to 'arch/arm/mach-pxa/palmte2.c')
-rw-r--r-- | arch/arm/mach-pxa/palmte2.c | 278 |
1 files changed, 278 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/palmte2.c b/arch/arm/mach-pxa/palmte2.c new file mode 100644 index 000000000000..e0dc655ae83a --- /dev/null +++ b/arch/arm/mach-pxa/palmte2.c @@ -0,0 +1,278 @@ +/* + * Hardware definitions for Palm Tungsten|E2 + * + * Author: + * Carlos Eduardo Medaglia Dyonisio <cadu@nerdfeliz.com> + * + * Rewrite for mainline: + * Marek Vasut <marek.vasut@gmail.com> + * + * 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/pwm_backlight.h> +#include <linux/gpio.h> + +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> + +#include <mach/audio.h> +#include <mach/palmte2.h> +#include <mach/mmc.h> +#include <mach/pxafb.h> +#include <mach/mfp-pxa25x.h> + +#include "generic.h" +#include "devices.h" + +/****************************************************************************** + * Pin configuration + ******************************************************************************/ +static unsigned long palmte2_pin_config[] __initdata = { + /* MMC */ + GPIO6_MMC_CLK, + GPIO8_MMC_CS0, + GPIO10_GPIO, /* SD detect */ + GPIO55_GPIO, /* SD power */ + GPIO51_GPIO, /* SD r/o switch */ + + /* AC97 */ + GPIO28_AC97_BITCLK, + GPIO29_AC97_SDATA_IN_0, + GPIO30_AC97_SDATA_OUT, + GPIO31_AC97_SYNC, + + /* PWM */ + GPIO16_PWM0_OUT, + + /* LCD */ + GPIO58_LCD_LDD_0, + GPIO59_LCD_LDD_1, + GPIO60_LCD_LDD_2, + GPIO61_LCD_LDD_3, + GPIO62_LCD_LDD_4, + GPIO63_LCD_LDD_5, + GPIO64_LCD_LDD_6, + GPIO65_LCD_LDD_7, + GPIO66_LCD_LDD_8, + GPIO67_LCD_LDD_9, + GPIO68_LCD_LDD_10, + GPIO69_LCD_LDD_11, + GPIO70_LCD_LDD_12, + GPIO71_LCD_LDD_13, + GPIO72_LCD_LDD_14, + GPIO73_LCD_LDD_15, + GPIO74_LCD_FCLK, + GPIO75_LCD_LCLK, + GPIO76_LCD_PCLK, + + /* GPIO KEYS */ + GPIO5_GPIO, /* notes */ + GPIO7_GPIO, /* tasks */ + GPIO11_GPIO, /* calendar */ + GPIO13_GPIO, /* contacts */ + GPIO14_GPIO, /* center */ + GPIO19_GPIO, /* left */ + GPIO20_GPIO, /* right */ + GPIO21_GPIO, /* down */ + GPIO22_GPIO, /* up */ + + /* MISC */ + GPIO1_RST, /* reset */ +}; + +/****************************************************************************** + * SD/MMC card controller + ******************************************************************************/ +static int palmte2_mci_init(struct device *dev, + irq_handler_t palmte2_detect_int, void *data) +{ + int err = 0; + + /* Setup an interrupt for detecting card insert/remove events */ + err = gpio_request(GPIO_NR_PALMTE2_SD_DETECT_N, "SD IRQ"); + if (err) + goto err; + err = gpio_direction_input(GPIO_NR_PALMTE2_SD_DETECT_N); + if (err) + goto err2; + err = request_irq(gpio_to_irq(GPIO_NR_PALMTE2_SD_DETECT_N), + palmte2_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__); + goto err2; + } + + err = gpio_request(GPIO_NR_PALMTE2_SD_POWER, "SD_POWER"); + if (err) + goto err3; + err = gpio_direction_output(GPIO_NR_PALMTE2_SD_POWER, 0); + if (err) + goto err4; + + err = gpio_request(GPIO_NR_PALMTE2_SD_READONLY, "SD_READONLY"); + if (err) + goto err4; + err = gpio_direction_input(GPIO_NR_PALMTE2_SD_READONLY); + if (err) + goto err5; + + printk(KERN_DEBUG "%s: irq registered\n", __func__); + + return 0; + +err5: + gpio_free(GPIO_NR_PALMTE2_SD_READONLY); +err4: + gpio_free(GPIO_NR_PALMTE2_SD_POWER); +err3: + free_irq(gpio_to_irq(GPIO_NR_PALMTE2_SD_DETECT_N), data); +err2: + gpio_free(GPIO_NR_PALMTE2_SD_DETECT_N); +err: + return err; +} + +static void palmte2_mci_exit(struct device *dev, void *data) +{ + gpio_free(GPIO_NR_PALMTE2_SD_READONLY); + gpio_free(GPIO_NR_PALMTE2_SD_POWER); + free_irq(gpio_to_irq(GPIO_NR_PALMTE2_SD_DETECT_N), data); + gpio_free(GPIO_NR_PALMTE2_SD_DETECT_N); +} + +static void palmte2_mci_power(struct device *dev, unsigned int vdd) +{ + struct pxamci_platform_data *p_d = dev->platform_data; + gpio_set_value(GPIO_NR_PALMTE2_SD_POWER, p_d->ocr_mask & (1 << vdd)); +} + +static int palmte2_mci_get_ro(struct device *dev) +{ + return gpio_get_value(GPIO_NR_PALMTE2_SD_READONLY); +} + +static struct pxamci_platform_data palmte2_mci_platform_data = { + .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, + .setpower = palmte2_mci_power, + .get_ro = palmte2_mci_get_ro, + .init = palmte2_mci_init, + .exit = palmte2_mci_exit, +}; + +/****************************************************************************** + * GPIO keys + ******************************************************************************/ +static struct gpio_keys_button palmte2_pxa_buttons[] = { + {KEY_F1, GPIO_NR_PALMTE2_KEY_CONTACTS, 1, "Contacts" }, + {KEY_F2, GPIO_NR_PALMTE2_KEY_CALENDAR, 1, "Calendar" }, + {KEY_F3, GPIO_NR_PALMTE2_KEY_TASKS, 1, "Tasks" }, + {KEY_F4, GPIO_NR_PALMTE2_KEY_NOTES, 1, "Notes" }, + {KEY_ENTER, GPIO_NR_PALMTE2_KEY_CENTER, 1, "Center" }, + {KEY_LEFT, GPIO_NR_PALMTE2_KEY_LEFT, 1, "Left" }, + {KEY_RIGHT, GPIO_NR_PALMTE2_KEY_RIGHT, 1, "Right" }, + {KEY_DOWN, GPIO_NR_PALMTE2_KEY_DOWN, 1, "Down" }, + {KEY_UP, GPIO_NR_PALMTE2_KEY_UP, 1, "Up" }, +}; + +static struct gpio_keys_platform_data palmte2_pxa_keys_data = { + .buttons = palmte2_pxa_buttons, + .nbuttons = ARRAY_SIZE(palmte2_pxa_buttons), +}; + +static struct platform_device palmte2_pxa_keys = { + .name = "gpio-keys", + .id = -1, + .dev = { + .platform_data = &palmte2_pxa_keys_data, + }, +}; + +/****************************************************************************** + * Backlight + ******************************************************************************/ +static struct platform_pwm_backlight_data palmte2_backlight_data = { + .pwm_id = 0, + .max_brightness = PALMTE2_MAX_INTENSITY, + .dft_brightness = PALMTE2_MAX_INTENSITY, + .pwm_period_ns = PALMTE2_PERIOD_NS, +}; + +static struct platform_device palmte2_backlight = { + .name = "pwm-backlight", + .dev = { + .parent = &pxa25x_device_pwm0.dev, + .platform_data = &palmte2_backlight_data, + }, +}; + +/****************************************************************************** + * Framebuffer + ******************************************************************************/ +static struct pxafb_mode_info palmte2_lcd_modes[] = { +{ + .pixclock = 77757, + .xres = 320, + .yres = 320, + .bpp = 16, + + .left_margin = 28, + .right_margin = 7, + .upper_margin = 7, + .lower_margin = 5, + + .hsync_len = 4, + .vsync_len = 1, +}, +}; + +static struct pxafb_mach_info palmte2_lcd_screen = { + .modes = palmte2_lcd_modes, + .num_modes = ARRAY_SIZE(palmte2_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) + &palmte2_pxa_keys, +#endif + &palmte2_backlight, +}; + +static void __init palmte2_init(void) +{ + pxa2xx_mfp_config(ARRAY_AND_SIZE(palmte2_pin_config)); + + set_pxa_fb_info(&palmte2_lcd_screen); + pxa_set_mci_info(&palmte2_mci_platform_data); + pxa_set_ac97_info(NULL); + + platform_add_devices(devices, ARRAY_SIZE(devices)); +} + +MACHINE_START(PALMTE2, "Palm Tungsten|E2") + .phys_io = 0x40000000, + .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, + .boot_params = 0xa0000100, + .map_io = pxa_map_io, + .init_irq = pxa25x_init_irq, + .timer = &pxa_timer, + .init_machine = palmte2_init +MACHINE_END |