[ARM] pxa: Palm Tungsten E2 basic support
Marek Vasut [Mon, 23 Mar 2009 23:29:29 +0000 (00:29 +0100)]
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>

MAINTAINERS
arch/arm/mach-pxa/Kconfig
arch/arm/mach-pxa/Makefile
arch/arm/mach-pxa/include/mach/palmte2.h [new file with mode: 0644]
arch/arm/mach-pxa/palmte2.c [new file with mode: 0644]

index 6fe6f39..97d75ff 100644 (file)
@@ -636,7 +636,7 @@ P:  Dirk Opfer
 M:     dirk@opfer-online.de
 S:     Maintained
 
-ARM/PALMTX,PALMT5,PALMLD SUPPORT
+ARM/PALMTX,PALMT5,PALMLD,PALMTE2 SUPPORT
 P:     Marek Vasut
 M:     marek.vasut@gmail.com
 W:     http://hackndev.com
index 96a2006..3e66d90 100644 (file)
@@ -343,6 +343,15 @@ config ARCH_PXA_PALM
        bool "PXA based Palm PDAs"
        select HAVE_PWM
 
+config MACH_PALMTE2
+       bool "Palm Tungsten|E2"
+       default y
+       depends on ARCH_PXA_PALM
+       select PXA25x
+       help
+         Say Y here if you intend to run this kernel on a Palm Tungsten|E2
+         handheld computer.
+
 config MACH_PALMT5
        bool "Palm Tungsten|T5"
        default y
index c80e1ba..682dbf4 100644 (file)
@@ -57,6 +57,7 @@ obj-$(CONFIG_MACH_E740)               += e740.o
 obj-$(CONFIG_MACH_E750)                += e750.o
 obj-$(CONFIG_MACH_E400)                += e400.o
 obj-$(CONFIG_MACH_E800)                += e800.o
+obj-$(CONFIG_MACH_PALMTE2)     += palmte2.o
 obj-$(CONFIG_MACH_PALMT5)      += palmt5.o
 obj-$(CONFIG_MACH_PALMTX)      += palmtx.o
 obj-$(CONFIG_MACH_PALMLD)      += palmld.o
diff --git a/arch/arm/mach-pxa/include/mach/palmte2.h b/arch/arm/mach-pxa/include/mach/palmte2.h
new file mode 100644 (file)
index 0000000..808ee7f
--- /dev/null
@@ -0,0 +1,43 @@
+/*
+ * GPIOs and interrupts for Palm Tungsten|E2 Handheld Computer
+ *
+ * Author:
+ *             Carlos Eduardo Medaglia Dyonisio <cadu@nerdfeliz.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.
+ *
+ */
+
+#ifndef _INCLUDE_PALMTE2_H_
+#define _INCLUDE_PALMTE2_H_
+
+/** HERE ARE GPIOs **/
+
+/* GPIOs */
+#define GPIO_NR_PALMTE2_SD_DETECT_N            10
+#define GPIO_NR_PALMTE2_SD_POWER               55
+#define GPIO_NR_PALMTE2_SD_READONLY            51
+
+/* KEYS */
+#define GPIO_NR_PALMTE2_KEY_NOTES      5
+#define GPIO_NR_PALMTE2_KEY_TASKS      7
+#define GPIO_NR_PALMTE2_KEY_CALENDAR   11
+#define GPIO_NR_PALMTE2_KEY_CONTACTS   13
+#define GPIO_NR_PALMTE2_KEY_CENTER     14
+#define GPIO_NR_PALMTE2_KEY_LEFT       19
+#define GPIO_NR_PALMTE2_KEY_RIGHT      20
+#define GPIO_NR_PALMTE2_KEY_DOWN       21
+#define GPIO_NR_PALMTE2_KEY_UP         22
+
+/** HERE ARE INIT VALUES **/
+
+/* BACKLIGHT */
+#define PALMTE2_MAX_INTENSITY          0xFE
+#define PALMTE2_DEFAULT_INTENSITY      0x7E
+#define PALMTE2_LIMIT_MASK             0x7F
+#define PALMTE2_PRESCALER              0x3F
+#define PALMTE2_PERIOD_NS              3500
+
+#endif
diff --git a/arch/arm/mach-pxa/palmte2.c b/arch/arm/mach-pxa/palmte2.c
new file mode 100644 (file)
index 0000000..e0dc655
--- /dev/null
@@ -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