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-rw-r--r--arch/arm/mach-pxa/palmz72.c554
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
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-19 06:32:47 +0100