1 files changed, 554 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/palmz72.c b/arch/arm/mach-pxa/palmz72.c
new file mode 100644
index 000000000000..2f730da3bba8
--- /dev/null
+++ b/arch/arm/mach-pxa/palmz72.c
@@ -0,0 +1,554 @@
+/*
+ * 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>
+ *
+ * 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/sysdev.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/power_supply.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include <mach/audio.h>
+#include <mach/palmz72.h>
+#include <mach/mmc.h>
+#include <mach/pxafb.h>
+#include <mach/pxa-regs.h>
+#include <mach/pxa2xx-regs.h>
+#include <mach/mfp-pxa27x.h>
+#include <mach/irda.h>
+#include <mach/pxa27x_keypad.h>
+#include <mach/udc.h>
+#include <mach/pm.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,
+
+        /* IrDA */
+        GPIO49_GPIO,    /* ir disable */
+        GPIO46_FICP_RXD,
+        GPIO47_FICP_TXD,
+
+        /* PWM */
+        GPIO16_PWM0_OUT,
+
+        /* USB */
+        GPIO15_GPIO,    /* usb detect */
+        GPIO12_GPIO,    /* usb pullup */
+        GPIO95_GPIO,    /* usb power */
+
+        /* 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 */
+        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,
+        GPIO77_LCD_BIAS,
+        GPIO20_GPIO,    /* bl power */
+        GPIO21_GPIO,    /* LCD border switch */
+        GPIO22_GPIO,    /* LCD border color */
+        GPIO96_GPIO,    /* lcd power */
+
+        /* Misc. */
+        GPIO0_GPIO      | WAKEUP_ON_LEVEL_HIGH, /* power detect */
+        GPIO88_GPIO,                            /* green led */
+        GPIO27_GPIO,                            /* WM9712 IRQ */
+};
+
+/******************************************************************************
+ * SD/MMC card controller
+ ******************************************************************************/
+static int palmz72_mci_init(struct device *dev,
+                                irq_handler_t palmz72_detect_int, void *data)
+{
+        int err = 0;
+
+        /* Setup an interrupt for detecting card insert/remove events */
+        err = gpio_request(GPIO_NR_PALMZ72_SD_DETECT_N, "SD IRQ");
+        if (err)
+                goto err;
+        err = gpio_direction_input(GPIO_NR_PALMZ72_SD_DETECT_N);
+        if (err)
+                goto err2;
+        err = request_irq(gpio_to_irq(GPIO_NR_PALMZ72_SD_DETECT_N),
+                        palmz72_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;
+        }
+
+        /* SD_POWER is not actually power, but it is more like chip
+         * select, i.e. it is inverted */
+
+        err = gpio_request(GPIO_NR_PALMZ72_SD_POWER_N, "SD_POWER");
+        if (err)
+                goto err3;
+        err = gpio_direction_output(GPIO_NR_PALMZ72_SD_POWER_N, 0);
+        if (err)
+                goto err4;
+        err = gpio_request(GPIO_NR_PALMZ72_SD_RO, "SD_RO");
+        if (err)
+                goto err4;
+        err = gpio_direction_input(GPIO_NR_PALMZ72_SD_RO);
+        if (err)
+                goto err5;
+
+        printk(KERN_DEBUG "%s: irq registered\n", __func__);
+
+        return 0;
+
+err5:
+        gpio_free(GPIO_NR_PALMZ72_SD_RO);
+err4:
+        gpio_free(GPIO_NR_PALMZ72_SD_POWER_N);
+err3:
+        free_irq(gpio_to_irq(GPIO_NR_PALMZ72_SD_DETECT_N), data);
+err2:
+        gpio_free(GPIO_NR_PALMZ72_SD_DETECT_N);
+err:
+        return err;
+}
+
+static void palmz72_mci_exit(struct device *dev, void *data)
+{
+        gpio_free(GPIO_NR_PALMZ72_SD_POWER_N);
+        free_irq(gpio_to_irq(GPIO_NR_PALMZ72_SD_DETECT_N), data);
+        gpio_free(GPIO_NR_PALMZ72_SD_DETECT_N);
+        gpio_free(GPIO_NR_PALMZ72_SD_RO);
+}
+
+static void palmz72_mci_power(struct device *dev, unsigned int vdd)
+{
+        struct pxamci_platform_data *p_d = dev->platform_data;
+        if (p_d->ocr_mask & (1 << vdd))
+                gpio_set_value(GPIO_NR_PALMZ72_SD_POWER_N, 0);
+        else
+                gpio_set_value(GPIO_NR_PALMZ72_SD_POWER_N, 1);
+}
+
+static int palmz72_mci_ro(struct device *dev)
+{
+        return gpio_get_value(GPIO_NR_PALMZ72_SD_RO);
+}
+
+static struct pxamci_platform_data palmz72_mci_platform_data = {
+        .ocr_mask       = MMC_VDD_32_33 | MMC_VDD_33_34,
+        .setpower       = palmz72_mci_power,
+        .get_ro         = palmz72_mci_ro,
+        .init           = palmz72_mci_init,
+        .exit           = palmz72_mci_exit,
+};
+
+/******************************************************************************
+ * GPIO keyboard
+ ******************************************************************************/
+static 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 pxa27x_keypad_platform_data palmz72_keypad_platform_data = {
+        .matrix_key_rows        = 4,
+        .matrix_key_cols        = 3,
+        .matrix_key_map         = palmz72_matrix_keys,
+        .matrix_key_map_size    = ARRAY_SIZE(palmz72_matrix_keys),
+
+        .debounce_interval      = 30,
+};
+
+/******************************************************************************
+ * Backlight
+ ******************************************************************************/
+static int palmz72_backlight_init(struct device *dev)
+{
+        int ret;
+
+        ret = gpio_request(GPIO_NR_PALMZ72_BL_POWER, "BL POWER");
+        if (ret)
+                goto err;
+        ret = gpio_direction_output(GPIO_NR_PALMZ72_BL_POWER, 0);
+        if (ret)
+                goto err2;
+        ret = gpio_request(GPIO_NR_PALMZ72_LCD_POWER, "LCD POWER");
+        if (ret)
+                goto err2;
+        ret = gpio_direction_output(GPIO_NR_PALMZ72_LCD_POWER, 0);
+        if (ret)
+                goto err3;
+
+        return 0;
+err3:
+        gpio_free(GPIO_NR_PALMZ72_LCD_POWER);
+err2:
+        gpio_free(GPIO_NR_PALMZ72_BL_POWER);
+err:
+        return ret;
+}
+
+static int palmz72_backlight_notify(int brightness)
+{
+        gpio_set_value(GPIO_NR_PALMZ72_BL_POWER, brightness);
+        gpio_set_value(GPIO_NR_PALMZ72_LCD_POWER, brightness);
+        return brightness;
+}
+
+static void palmz72_backlight_exit(struct device *dev)
+{
+        gpio_free(GPIO_NR_PALMZ72_BL_POWER);
+        gpio_free(GPIO_NR_PALMZ72_LCD_POWER);
+}
+
+static struct platform_pwm_backlight_data palmz72_backlight_data = {
+        .pwm_id         = 0,
+        .max_brightness = PALMZ72_MAX_INTENSITY,
+        .dft_brightness = PALMZ72_MAX_INTENSITY,
+        .pwm_period_ns  = PALMZ72_PERIOD_NS,
+        .init           = palmz72_backlight_init,
+        .notify         = palmz72_backlight_notify,
+        .exit           = palmz72_backlight_exit,
+};
+
+static struct platform_device palmz72_backlight = {
+        .name   = "pwm-backlight",
+        .dev    = {
+                .parent         = &pxa27x_device_pwm0.dev,
+                .platform_data  = &palmz72_backlight_data,
+        },
+};
+
+/******************************************************************************
+ * IrDA
+ ******************************************************************************/
+static int palmz72_irda_startup(struct device *dev)
+{
+        int err;
+        err = gpio_request(GPIO_NR_PALMZ72_IR_DISABLE, "IR DISABLE");
+        if (err)
+                goto err;
+        err = gpio_direction_output(GPIO_NR_PALMZ72_IR_DISABLE, 1);
+        if (err)
+                gpio_free(GPIO_NR_PALMZ72_IR_DISABLE);
+err:
+        return err;
+}
+
+static void palmz72_irda_shutdown(struct device *dev)
+{
+        gpio_free(GPIO_NR_PALMZ72_IR_DISABLE);
+}
+
+static void palmz72_irda_transceiver_mode(struct device *dev, int mode)
+{
+        gpio_set_value(GPIO_NR_PALMZ72_IR_DISABLE, mode & IR_OFF);
+        pxa2xx_transceiver_mode(dev, mode);
+}
+
+static struct pxaficp_platform_data palmz72_ficp_platform_data = {
+        .startup                = palmz72_irda_startup,
+        .shutdown               = palmz72_irda_shutdown,
+        .transceiver_cap        = IR_SIRMODE | IR_OFF,
+        .transceiver_mode       = palmz72_irda_transceiver_mode,
+};
+
+/******************************************************************************
+ * LEDs
+ ******************************************************************************/
+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,
+        }
+};
+
+/******************************************************************************
+ * Power supply
+ ******************************************************************************/
+static int power_supply_init(struct device *dev)
+{
+        int ret;
+
+        ret = gpio_request(GPIO_NR_PALMZ72_POWER_DETECT, "CABLE_STATE_AC");
+        if (ret)
+                goto err1;
+        ret = gpio_direction_input(GPIO_NR_PALMZ72_POWER_DETECT);
+        if (ret)
+                goto err2;
+
+        ret = gpio_request(GPIO_NR_PALMZ72_USB_DETECT_N, "CABLE_STATE_USB");
+        if (ret)
+                goto err2;
+        ret = gpio_direction_input(GPIO_NR_PALMZ72_USB_DETECT_N);
+        if (ret)
+                goto err3;
+
+        return 0;
+err3:
+        gpio_free(GPIO_NR_PALMZ72_USB_DETECT_N);
+err2:
+        gpio_free(GPIO_NR_PALMZ72_POWER_DETECT);
+err1:
+        return ret;
+}
+
+static int palmz72_is_ac_online(void)
+{
+        return gpio_get_value(GPIO_NR_PALMZ72_POWER_DETECT);
+}
+
+static int palmz72_is_usb_online(void)
+{
+        return !gpio_get_value(GPIO_NR_PALMZ72_USB_DETECT_N);
+}
+
+static void power_supply_exit(struct device *dev)
+{
+        gpio_free(GPIO_NR_PALMZ72_USB_DETECT_N);
+        gpio_free(GPIO_NR_PALMZ72_POWER_DETECT);
+}
+
+static char *palmz72_supplicants[] = {
+        "main-battery",
+};
+
+static struct pda_power_pdata power_supply_info = {
+        .init            = power_supply_init,
+        .is_ac_online    = palmz72_is_ac_online,
+        .is_usb_online   = palmz72_is_usb_online,
+        .exit            = power_supply_exit,
+        .supplied_to     = palmz72_supplicants,
+        .num_supplicants = ARRAY_SIZE(palmz72_supplicants),
+};
+
+static struct platform_device power_supply = {
+        .name = "pda-power",
+        .id   = -1,
+        .dev  = {
+                .platform_data = &power_supply_info,
+        },
+};
+
+/******************************************************************************
+ * Framebuffer
+ ******************************************************************************/
+static struct pxafb_mode_info palmz72_lcd_modes[] = {
+{
+        .pixclock       = 115384,
+        .xres           = 320,
+        .yres           = 320,
+        .bpp            = 16,
+
+        .left_margin    = 27,
+        .right_margin   = 7,
+        .upper_margin   = 7,
+        .lower_margin   = 8,
+
+        .hsync_len      = 6,
+        .vsync_len      = 1,
+},
+};
+
+static struct pxafb_mach_info palmz72_lcd_screen = {
+        .modes          = palmz72_lcd_modes,
+        .num_modes      = ARRAY_SIZE(palmz72_lcd_modes),
+        .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
+};
+
+#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;
+
+/* sys_device for Palm Zire 72 PM */
+
+static int palmz72_pm_suspend(struct sys_device *dev, pm_message_t msg)
+{
+        /* setup the resume_info struct for the original bootloader */
+        palmz72_resume_info.resume_addr = (u32) pxa_cpu_resume;
+
+        /* Storing memory touched by ROM */
+        store_ptr = *PALMZ72_SAVE_DWORD;
+
+        /* Setting PSPR to a proper value */
+        PSPR = virt_to_phys(&palmz72_resume_info);
+
+        return 0;
+}
+
+static int palmz72_pm_resume(struct sys_device *dev)
+{
+        *PALMZ72_SAVE_DWORD = store_ptr;
+        return 0;
+}
+
+static struct sysdev_class palmz72_pm_sysclass = {
+        .name = "palmz72_pm",
+        .suspend = palmz72_pm_suspend,
+        .resume = palmz72_pm_resume,
+};
+
+static struct sys_device palmz72_pm_device = {
+        .cls = &palmz72_pm_sysclass,
+};
+
+static int __init palmz72_pm_init(void)
+{
+        int ret = -ENODEV;
+        if (machine_is_palmz72()) {
+                ret = sysdev_class_register(&palmz72_pm_sysclass);
+                if (ret == 0)
+                        ret = sysdev_register(&palmz72_pm_device);
+        }
+        return ret;
+}
+
+device_initcall(palmz72_pm_init);
+#endif
+
+/******************************************************************************
+ * Machine init
+ ******************************************************************************/
+static struct platform_device *devices[] __initdata = {
+        &palmz72_backlight,
+        &palmz72_leds,
+        &power_supply,
+};
+
+static void __init palmz72_init(void)
+{
+        pxa2xx_mfp_config(ARRAY_AND_SIZE(palmz72_pin_config));
+        set_pxa_fb_info(&palmz72_lcd_screen);
+        pxa_set_mci_info(&palmz72_mci_platform_data);
+        pxa_set_ac97_info(NULL);
+        pxa_set_ficp_info(&palmz72_ficp_platform_data);
+        pxa_set_keypad_info(&palmz72_keypad_platform_data);
+        platform_add_devices(devices, ARRAY_SIZE(devices));
+}
+
+MACHINE_START(PALMZ72, "Palm Zire72")
+        .phys_io        = 0x40000000,
+        .io_pg_offst    = io_p2v(0x40000000),
+        .boot_params    = 0xa0000100,
+        .map_io         = pxa_map_io,
+        .init_irq       = pxa27x_init_irq,
+        .timer          = &pxa_timer,
+        .init_machine   = palmz72_init
+MACHINE_END