diff options
Diffstat (limited to 'arch/arm/mach-pxa/palmz72.c')
| -rw-r--r-- | arch/arm/mach-pxa/palmz72.c | 319 |
1 files changed, 319 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/palmz72.c b/arch/arm/mach-pxa/palmz72.c new file mode 100644 index 000000000..b4a5fe02a --- /dev/null +++ b/arch/arm/mach-pxa/palmz72.c @@ -0,0 +1,319 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Hardware definitions for Palm Zire72 + * + * Authors: + * Vladimir "Farcaller" Pouzanov <farcaller@gmail.com> + * Sergey Lapin <slapin@ossfans.org> + * Alex Osborne <bobofdoom@gmail.com> + * Jan Herman <2hp@seznam.cz> + * + * Rewrite for mainline: + * Marek Vasut <marek.vasut@gmail.com> + * + * (find more info at www.hackndev.com) + */ + +#include <linux/platform_device.h> +#include <linux/syscore_ops.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 <linux/wm97xx.h> +#include <linux/power_supply.h> +#include <linux/platform_data/i2c-gpio.h> +#include <linux/gpio/machine.h> + +#include <asm/mach-types.h> +#include <asm/suspend.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> + +#include "pxa27x.h" +#include <mach/audio.h> +#include "palmz72.h" +#include <linux/platform_data/mmc-pxamci.h> +#include <linux/platform_data/video-pxafb.h> +#include <linux/platform_data/irda-pxaficp.h> +#include <linux/platform_data/keypad-pxa27x.h> +#include "udc.h" +#include <linux/platform_data/asoc-palm27x.h> +#include "palm27x.h" + +#include "pm.h" +#include <linux/platform_data/media/camera-pxa.h> + +#include "generic.h" +#include "devices.h" + +/****************************************************************************** + * Pin configuration + ******************************************************************************/ +static unsigned long palmz72_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, + GPIO14_GPIO, /* SD detect */ + GPIO115_GPIO, /* SD RO */ + GPIO98_GPIO, /* SD power */ + + /* AC97 */ + GPIO28_AC97_BITCLK, + GPIO29_AC97_SDATA_IN_0, + GPIO30_AC97_SDATA_OUT, + GPIO31_AC97_SYNC, + GPIO89_AC97_SYSCLK, + GPIO113_AC97_nRESET, + + /* IrDA */ + GPIO49_GPIO, /* ir disable */ + GPIO46_FICP_RXD, + GPIO47_FICP_TXD, + + /* PWM */ + GPIO16_PWM0_OUT, + + /* USB */ + GPIO15_GPIO, /* usb detect */ + GPIO95_GPIO, /* usb pullup */ + + /* Matrix keypad */ + GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH, + GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH, + GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH, + GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH, + GPIO103_KP_MKOUT_0, + GPIO104_KP_MKOUT_1, + GPIO105_KP_MKOUT_2, + + /* LCD */ + GPIOxx_LCD_TFT_16BPP, + + GPIO20_GPIO, /* bl power */ + GPIO21_GPIO, /* LCD border switch */ + GPIO22_GPIO, /* LCD border color */ + GPIO96_GPIO, /* lcd power */ + + /* PXA Camera */ + GPIO81_CIF_DD_0, + GPIO48_CIF_DD_5, + GPIO50_CIF_DD_3, + GPIO51_CIF_DD_2, + GPIO52_CIF_DD_4, + GPIO53_CIF_MCLK, + GPIO54_CIF_PCLK, + GPIO55_CIF_DD_1, + GPIO84_CIF_FV, + GPIO85_CIF_LV, + GPIO93_CIF_DD_6, + GPIO108_CIF_DD_7, + + GPIO56_GPIO, /* OV9640 Powerdown */ + GPIO57_GPIO, /* OV9640 Reset */ + GPIO91_GPIO, /* OV9640 Power */ + + /* I2C */ + GPIO117_GPIO, /* I2C_SCL */ + GPIO118_GPIO, /* I2C_SDA */ + + /* Misc. */ + GPIO0_GPIO | WAKEUP_ON_LEVEL_HIGH, /* power detect */ + GPIO88_GPIO, /* green led */ + GPIO27_GPIO, /* WM9712 IRQ */ +}; + +/****************************************************************************** + * GPIO keyboard + ******************************************************************************/ +#if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE) +static const unsigned int palmz72_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 matrix_keymap_data almz72_matrix_keymap_data = { + .keymap = palmz72_matrix_keys, + .keymap_size = ARRAY_SIZE(palmz72_matrix_keys), +}; + +static struct pxa27x_keypad_platform_data palmz72_keypad_platform_data = { + .matrix_key_rows = 4, + .matrix_key_cols = 3, + .matrix_keymap_data = &almz72_matrix_keymap_data, + + .debounce_interval = 30, +}; + +static void __init palmz72_kpc_init(void) +{ + pxa_set_keypad_info(&palmz72_keypad_platform_data); +} +#else +static inline void palmz72_kpc_init(void) {} +#endif + +/****************************************************************************** + * LEDs + ******************************************************************************/ +#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE) +static struct gpio_led gpio_leds[] = { + { + .name = "palmz72:green:led", + .default_trigger = "none", + .gpio = GPIO_NR_PALMZ72_LED_GREEN, + }, +}; + +static struct gpio_led_platform_data gpio_led_info = { + .leds = gpio_leds, + .num_leds = ARRAY_SIZE(gpio_leds), +}; + +static struct platform_device palmz72_leds = { + .name = "leds-gpio", + .id = -1, + .dev = { + .platform_data = &gpio_led_info, + } +}; + +static void __init palmz72_leds_init(void) +{ + platform_device_register(&palmz72_leds); +} +#else +static inline void palmz72_leds_init(void) {} +#endif + +#ifdef CONFIG_PM + +/* We have some black magic here + * PalmOS ROM on recover expects special struct physical address + * to be transferred via PSPR. Using this struct PalmOS restores + * its state after sleep. As for Linux, we need to setup it the + * same way. More than that, PalmOS ROM changes some values in memory. + * For now only one location is found, which needs special treatment. + * Thanks to Alex Osborne, Andrzej Zaborowski, and lots of other people + * for reading backtraces for me :) + */ + +#define PALMZ72_SAVE_DWORD ((unsigned long *)0xc0000050) + +static struct palmz72_resume_info palmz72_resume_info = { + .magic0 = 0xb4e6, + .magic1 = 1, + + /* reset state, MMU off etc */ + .arm_control = 0, + .aux_control = 0, + .ttb = 0, + .domain_access = 0, + .process_id = 0, +}; + +static unsigned long store_ptr; + +/* syscore_ops for Palm Zire 72 PM */ + +static int palmz72_pm_suspend(void) +{ + /* setup the resume_info struct for the original bootloader */ + palmz72_resume_info.resume_addr = (u32) cpu_resume; + + /* Storing memory touched by ROM */ + store_ptr = *PALMZ72_SAVE_DWORD; + + /* Setting PSPR to a proper value */ + PSPR = __pa_symbol(&palmz72_resume_info); + + return 0; +} + +static void palmz72_pm_resume(void) +{ + *PALMZ72_SAVE_DWORD = store_ptr; +} + +static struct syscore_ops palmz72_pm_syscore_ops = { + .suspend = palmz72_pm_suspend, + .resume = palmz72_pm_resume, +}; + +static int __init palmz72_pm_init(void) +{ + if (machine_is_palmz72()) { + register_syscore_ops(&palmz72_pm_syscore_ops); + return 0; + } + return -ENODEV; +} + +device_initcall(palmz72_pm_init); +#endif + +static struct gpiod_lookup_table palmz72_mci_gpio_table = { + .dev_id = "pxa2xx-mci.0", + .table = { + GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMZ72_SD_DETECT_N, + "cd", GPIO_ACTIVE_LOW), + GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMZ72_SD_RO, + "wp", GPIO_ACTIVE_LOW), + GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMZ72_SD_POWER_N, + "power", GPIO_ACTIVE_LOW), + { }, + }, +}; + +/****************************************************************************** + * Machine init + ******************************************************************************/ +static void __init palmz72_init(void) +{ + pxa2xx_mfp_config(ARRAY_AND_SIZE(palmz72_pin_config)); + pxa_set_ffuart_info(NULL); + pxa_set_btuart_info(NULL); + pxa_set_stuart_info(NULL); + + palm27x_mmc_init(&palmz72_mci_gpio_table); + palm27x_lcd_init(-1, &palm_320x320_lcd_mode); + palm27x_udc_init(GPIO_NR_PALMZ72_USB_DETECT_N, + GPIO_NR_PALMZ72_USB_PULLUP, 0); + palm27x_irda_init(GPIO_NR_PALMZ72_IR_DISABLE); + palm27x_ac97_init(PALMZ72_BAT_MIN_VOLTAGE, PALMZ72_BAT_MAX_VOLTAGE, + -1, 113); + palm27x_pwm_init(-1, -1); + palm27x_power_init(-1, -1); + palm27x_pmic_init(); + palmz72_kpc_init(); + palmz72_leds_init(); +} + +MACHINE_START(PALMZ72, "Palm Zire72") + .atag_offset = 0x100, + .map_io = pxa27x_map_io, + .nr_irqs = PXA_NR_IRQS, + .init_irq = pxa27x_init_irq, + .handle_irq = pxa27x_handle_irq, + .init_time = pxa_timer_init, + .init_machine = palmz72_init, + .restart = pxa_restart, +MACHINE_END |