[ARM] pxa: Palm Tungsten|C initial support

This patch adds basic support for Palm Tungsten|C handheld.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

4 files changed, 558 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index 32e44b3a8fbe..d1dcb1cf0758 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -376,6 +376,15 @@ config MACH_PALMTE2
           Say Y here if you intend to run this kernel on a Palm Tungsten|E2
           handheld computer.
 
+config MACH_PALMTC
+        bool "Palm Tungsten|C"
+        default y
+        depends on ARCH_PXA_PALM
+        select PXA25x
+        help
+          Say Y here if you intend to run this kernel on a Palm Tungsten|C
+          handheld computer.
+
 config MACH_PALMT5
         bool "Palm Tungsten|T5"
         default y
diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
index d4c6122a342f..aa8f83e9421e 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -58,6 +58,7 @@ 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-$(CONFIG_MACH_PALMTC)       += palmtc.o
 obj-$(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/palmtc.h b/arch/arm/mach-pxa/include/mach/palmtc.h
new file mode 100644
index 000000000000..3dc9b074ab46
--- /dev/null
+++ b/arch/arm/mach-pxa/include/mach/palmtc.h
@@ -0,0 +1,86 @@
+/*
+ * linux/include/asm-arm/arch-pxa/palmtc-gpio.h
+ *
+ * GPIOs and interrupts for Palm Tungsten|C Handheld Computer
+ *
+ * Authors:     Alex Osborne <bobofdoom@gmail.com>
+ *              Marek Vasut <marek.vasut@gmail.com>
+ *              Holger Bocklet <bitz.email@gmx.net>
+ *
+ * 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_PALMTC_H_
+#define _INCLUDE_PALMTC_H_
+
+/** HERE ARE GPIOs **/
+
+/* GPIOs */
+#define GPIO_NR_PALMTC_EARPHONE_DETECT  2
+#define GPIO_NR_PALMTC_CRADLE_DETECT    5
+#define GPIO_NR_PALMTC_HOTSYNC_BUTTON   7
+
+/* SD/MMC */
+#define GPIO_NR_PALMTC_SD_DETECT_N      12
+#define GPIO_NR_PALMTC_SD_POWER         32
+#define GPIO_NR_PALMTC_SD_READONLY      54
+
+/* WLAN */
+#define GPIO_NR_PALMTC_PCMCIA_READY     13
+#define GPIO_NR_PALMTC_PCMCIA_PWRREADY  14
+#define GPIO_NR_PALMTC_PCMCIA_POWER1    15
+#define GPIO_NR_PALMTC_PCMCIA_POWER2    33
+#define GPIO_NR_PALMTC_PCMCIA_POWER3    55
+#define GPIO_NR_PALMTC_PCMCIA_RESET     78
+
+/* UDC */
+#define GPIO_NR_PALMTC_USB_DETECT_N     4
+#define GPIO_NR_PALMTC_USB_POWER        36
+
+/* LCD/BACKLIGHT */
+#define GPIO_NR_PALMTC_BL_POWER         16
+#define GPIO_NR_PALMTC_LCD_POWER        44
+#define GPIO_NR_PALMTC_LCD_BLANK        38
+
+/* UART */
+#define GPIO_NR_PALMTC_RS232_POWER      37
+
+/* IRDA */
+#define GPIO_NR_PALMTC_IR_DISABLE       45
+
+/* IRQs */
+#define IRQ_GPIO_PALMTC_SD_DETECT_N     IRQ_GPIO(GPIO_NR_PALMTC_SD_DETECT_N)
+#define IRQ_GPIO_PALMTC_WLAN_READY      IRQ_GPIO(GPIO_NR_PALMTC_WLAN_READY)
+
+/* UCB1400 GPIOs */
+#define GPIO_NR_PALMTC_POWER_DETECT     (0x80 | 0x00)
+#define GPIO_NR_PALMTC_HEADPHONE_DETECT (0x80 | 0x01)
+#define GPIO_NR_PALMTC_SPEAKER_ENABLE   (0x80 | 0x03)
+#define GPIO_NR_PALMTC_VIBRA_POWER      (0x80 | 0x05)
+#define GPIO_NR_PALMTC_LED_POWER        (0x80 | 0x07)
+
+/** HERE ARE INIT VALUES **/
+#define PALMTC_UCB1400_GPIO_OFFSET      0x80
+
+/* BATTERY */
+#define PALMTC_BAT_MAX_VOLTAGE          4000    /* 4.00V maximum voltage */
+#define PALMTC_BAT_MIN_VOLTAGE          3550    /* 3.55V critical voltage */
+#define PALMTC_BAT_MAX_CURRENT          0       /* unknokn */
+#define PALMTC_BAT_MIN_CURRENT          0       /* unknown */
+#define PALMTC_BAT_MAX_CHARGE           1       /* unknown */
+#define PALMTC_BAT_MIN_CHARGE           1       /* unknown */
+#define PALMTC_MAX_LIFE_MINS            240     /* on-life in minutes */
+
+#define PALMTC_BAT_MEASURE_DELAY        (HZ * 1)
+
+/* BACKLIGHT */
+#define PALMTC_MAX_INTENSITY            0xFE
+#define PALMTC_DEFAULT_INTENSITY        0x7E
+#define PALMTC_LIMIT_MASK               0x7F
+#define PALMTC_PRESCALER                0x3F
+#define PALMTC_PERIOD_NS                3500
+
+#endif
diff --git a/arch/arm/mach-pxa/palmtc.c b/arch/arm/mach-pxa/palmtc.c
new file mode 100644
index 000000000000..f70f1f820eed
--- /dev/null
+++ b/arch/arm/mach-pxa/palmtc.c
@@ -0,0 +1,462 @@
+/*
+ * linux/arch/arm/mach-pxa/palmtc.c
+ *
+ * Support for the Palm Tungsten|C
+ *
+ * Author:      Marek Vasut <marek.vasut@gmail.com>
+ *
+ * Based on work of:
+ *              Petr Blaha <p3t3@centrum.cz>
+ *              Chetan S. Kumar <shivakumar.chetan@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.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/irq.h>
+#include <linux/input.h>
+#include <linux/pwm_backlight.h>
+#include <linux/gpio.h>
+#include <linux/input/matrix_keypad.h>
+#include <linux/ucb1400.h>
+#include <linux/power_supply.h>
+#include <linux/gpio_keys.h>
+#include <linux/mtd/physmap.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include <mach/audio.h>
+#include <mach/palmtc.h>
+#include <mach/mmc.h>
+#include <mach/pxafb.h>
+#include <mach/mfp-pxa25x.h>
+#include <mach/irda.h>
+#include <mach/udc.h>
+#include <mach/pxa2xx-regs.h>
+
+#include "generic.h"
+#include "devices.h"
+
+/******************************************************************************
+ * Pin configuration
+ ******************************************************************************/
+static unsigned long palmtc_pin_config[] __initdata = {
+        /* MMC */
+        GPIO6_MMC_CLK,
+        GPIO8_MMC_CS0,
+        GPIO12_GPIO,    /* detect */
+        GPIO32_GPIO,    /* power */
+        GPIO54_GPIO,    /* r/o switch */
+
+        /* PCMCIA */
+        GPIO52_nPCE_1,
+        GPIO53_nPCE_2,
+        GPIO50_nPIOR,
+        GPIO51_nPIOW,
+        GPIO49_nPWE,
+        GPIO48_nPOE,
+        GPIO52_nPCE_1,
+        GPIO53_nPCE_2,
+        GPIO57_nIOIS16,
+        GPIO56_nPWAIT,
+
+        /* AC97 */
+        GPIO28_AC97_BITCLK,
+        GPIO29_AC97_SDATA_IN_0,
+        GPIO30_AC97_SDATA_OUT,
+        GPIO31_AC97_SYNC,
+
+        /* IrDA */
+        GPIO45_GPIO,    /* ir disable */
+        GPIO46_FICP_RXD,
+        GPIO47_FICP_TXD,
+
+        /* PWM */
+        GPIO17_PWM1_OUT,
+
+        /* USB */
+        GPIO4_GPIO,     /* detect */
+        GPIO36_GPIO,    /* pullup */
+
+        /* 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,
+
+        /* MATRIX KEYPAD */
+        GPIO0_GPIO | WAKEUP_ON_EDGE_BOTH,       /* in 0 */
+        GPIO9_GPIO | WAKEUP_ON_EDGE_BOTH,       /* in 1 */
+        GPIO10_GPIO | WAKEUP_ON_EDGE_BOTH,      /* in 2 */
+        GPIO11_GPIO | WAKEUP_ON_EDGE_BOTH,      /* in 3 */
+        GPIO18_GPIO | MFP_LPM_DRIVE_LOW,        /* out 0 */
+        GPIO19_GPIO | MFP_LPM_DRIVE_LOW,        /* out 1 */
+        GPIO20_GPIO | MFP_LPM_DRIVE_LOW,        /* out 2 */
+        GPIO21_GPIO | MFP_LPM_DRIVE_LOW,        /* out 3 */
+        GPIO22_GPIO | MFP_LPM_DRIVE_LOW,        /* out 4 */
+        GPIO23_GPIO | MFP_LPM_DRIVE_LOW,        /* out 5 */
+        GPIO24_GPIO | MFP_LPM_DRIVE_LOW,        /* out 6 */
+        GPIO25_GPIO | MFP_LPM_DRIVE_LOW,        /* out 7 */
+        GPIO26_GPIO | MFP_LPM_DRIVE_LOW,        /* out 8 */
+        GPIO27_GPIO | MFP_LPM_DRIVE_LOW,        /* out 9 */
+        GPIO79_GPIO | MFP_LPM_DRIVE_LOW,        /* out 10 */
+        GPIO80_GPIO | MFP_LPM_DRIVE_LOW,        /* out 11 */
+
+        /* PXA GPIO KEYS */
+        GPIO7_GPIO | WAKEUP_ON_EDGE_BOTH,       /* hotsync button on cradle */
+
+        /* MISC */
+        GPIO1_RST,      /* reset */
+        GPIO2_GPIO,     /* earphone detect */
+        GPIO16_GPIO,    /* backlight switch */
+};
+
+/******************************************************************************
+ * SD/MMC card controller
+ ******************************************************************************/
+static struct pxamci_platform_data palmtc_mci_platform_data = {
+        .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
+        .gpio_power             = GPIO_NR_PALMTC_SD_POWER,
+        .gpio_card_ro           = GPIO_NR_PALMTC_SD_READONLY,
+        .gpio_card_detect       = GPIO_NR_PALMTC_SD_DETECT_N,
+        .detect_delay           = 20,
+};
+
+/******************************************************************************
+ * GPIO keys
+ ******************************************************************************/
+static struct gpio_keys_button palmtc_pxa_buttons[] = {
+        {KEY_F8, GPIO_NR_PALMTC_HOTSYNC_BUTTON, 1, "HotSync Button", EV_KEY, 1},
+};
+
+static struct gpio_keys_platform_data palmtc_pxa_keys_data = {
+        .buttons        = palmtc_pxa_buttons,
+        .nbuttons       = ARRAY_SIZE(palmtc_pxa_buttons),
+};
+
+static struct platform_device palmtc_pxa_keys = {
+        .name   = "gpio-keys",
+        .id     = -1,
+        .dev    = {
+                .platform_data = &palmtc_pxa_keys_data,
+        },
+};
+
+/******************************************************************************
+ * Backlight
+ ******************************************************************************/
+static int palmtc_backlight_init(struct device *dev)
+{
+        int ret;
+
+        ret = gpio_request(GPIO_NR_PALMTC_BL_POWER, "BL POWER");
+        if (ret)
+                goto err;
+        ret = gpio_direction_output(GPIO_NR_PALMTC_BL_POWER, 1);
+        if (ret)
+                goto err2;
+
+        return 0;
+
+err2:
+        gpio_free(GPIO_NR_PALMTC_BL_POWER);
+err:
+        return ret;
+}
+
+static int palmtc_backlight_notify(int brightness)
+{
+        /* backlight is on when GPIO16 AF0 is high */
+        gpio_set_value(GPIO_NR_PALMTC_BL_POWER, brightness);
+        return brightness;
+}
+
+static void palmtc_backlight_exit(struct device *dev)
+{
+        gpio_free(GPIO_NR_PALMTC_BL_POWER);
+}
+
+static struct platform_pwm_backlight_data palmtc_backlight_data = {
+        .pwm_id         = 1,
+        .max_brightness = PALMTC_MAX_INTENSITY,
+        .dft_brightness = PALMTC_MAX_INTENSITY,
+        .pwm_period_ns  = PALMTC_PERIOD_NS,
+        .init           = palmtc_backlight_init,
+        .notify         = palmtc_backlight_notify,
+        .exit           = palmtc_backlight_exit,
+};
+
+static struct platform_device palmtc_backlight = {
+        .name   = "pwm-backlight",
+        .dev    = {
+                .parent         = &pxa25x_device_pwm1.dev,
+                .platform_data  = &palmtc_backlight_data,
+        },
+};
+
+/******************************************************************************
+ * IrDA
+ ******************************************************************************/
+static int palmtc_irda_startup(struct device *dev)
+{
+        int err;
+        err = gpio_request(GPIO_NR_PALMTC_IR_DISABLE, "IR DISABLE");
+        if (err)
+                goto err;
+        err = gpio_direction_output(GPIO_NR_PALMTC_IR_DISABLE, 1);
+        if (err)
+                gpio_free(GPIO_NR_PALMTC_IR_DISABLE);
+err:
+        return err;
+}
+
+static void palmtc_irda_shutdown(struct device *dev)
+{
+        gpio_free(GPIO_NR_PALMTC_IR_DISABLE);
+}
+
+static void palmtc_irda_transceiver_mode(struct device *dev, int mode)
+{
+        gpio_set_value(GPIO_NR_PALMTC_IR_DISABLE, mode & IR_OFF);
+        pxa2xx_transceiver_mode(dev, mode);
+}
+
+static struct pxaficp_platform_data palmtc_ficp_platform_data = {
+        .startup                = palmtc_irda_startup,
+        .shutdown               = palmtc_irda_shutdown,
+        .transceiver_cap        = IR_SIRMODE | IR_FIRMODE | IR_OFF,
+        .transceiver_mode       = palmtc_irda_transceiver_mode,
+};
+
+/******************************************************************************
+ * Keyboard
+ ******************************************************************************/
+static const uint32_t palmtc_matrix_keys[] = {
+        KEY(0, 0, KEY_F1),
+        KEY(0, 1, KEY_X),
+        KEY(0, 2, KEY_POWER),
+        KEY(0, 3, KEY_TAB),
+        KEY(0, 4, KEY_A),
+        KEY(0, 5, KEY_Q),
+        KEY(0, 6, KEY_LEFTSHIFT),
+        KEY(0, 7, KEY_Z),
+        KEY(0, 8, KEY_S),
+        KEY(0, 9, KEY_W),
+        KEY(0, 10, KEY_E),
+        KEY(0, 11, KEY_UP),
+
+        KEY(1, 0, KEY_F2),
+        KEY(1, 1, KEY_DOWN),
+        KEY(1, 3, KEY_D),
+        KEY(1, 4, KEY_C),
+        KEY(1, 5, KEY_F),
+        KEY(1, 6, KEY_R),
+        KEY(1, 7, KEY_SPACE),
+        KEY(1, 8, KEY_V),
+        KEY(1, 9, KEY_G),
+        KEY(1, 10, KEY_T),
+        KEY(1, 11, KEY_LEFT),
+
+        KEY(2, 0, KEY_F3),
+        KEY(2, 1, KEY_LEFTCTRL),
+        KEY(2, 3, KEY_H),
+        KEY(2, 4, KEY_Y),
+        KEY(2, 5, KEY_N),
+        KEY(2, 6, KEY_J),
+        KEY(2, 7, KEY_U),
+        KEY(2, 8, KEY_M),
+        KEY(2, 9, KEY_K),
+        KEY(2, 10, KEY_I),
+        KEY(2, 11, KEY_RIGHT),
+
+        KEY(3, 0, KEY_F4),
+        KEY(3, 1, KEY_ENTER),
+        KEY(3, 3, KEY_DOT),
+        KEY(3, 4, KEY_L),
+        KEY(3, 5, KEY_O),
+        KEY(3, 6, KEY_LEFTALT),
+        KEY(3, 7, KEY_ENTER),
+        KEY(3, 8, KEY_BACKSPACE),
+        KEY(3, 9, KEY_P),
+        KEY(3, 10, KEY_B),
+        KEY(3, 11, KEY_FN),
+};
+
+const struct matrix_keymap_data palmtc_keymap_data = {
+        .keymap                 = palmtc_matrix_keys,
+        .keymap_size            = ARRAY_SIZE(palmtc_matrix_keys),
+};
+
+const static unsigned int palmtc_keypad_row_gpios[] = {
+        0, 9, 10, 11
+};
+
+const static unsigned int palmtc_keypad_col_gpios[] = {
+        18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 79, 80
+};
+
+static struct matrix_keypad_platform_data palmtc_keypad_platform_data = {
+        .keymap_data    = &palmtc_keymap_data,
+        .col_gpios      = palmtc_keypad_row_gpios,
+        .num_col_gpios  = 12,
+        .row_gpios      = palmtc_keypad_col_gpios,
+        .num_row_gpios  = 4,
+        .active_low     = 1,
+
+        .debounce_ms            = 20,
+        .col_scan_delay_us      = 5,
+};
+
+static struct platform_device palmtc_keyboard = {
+        .name   = "matrix-keypad",
+        .id     = -1,
+        .dev    = {
+                .platform_data = &palmtc_keypad_platform_data,
+        },
+};
+
+/******************************************************************************
+ * UDC
+ ******************************************************************************/
+static struct pxa2xx_udc_mach_info palmtc_udc_info __initdata = {
+        .gpio_vbus              = GPIO_NR_PALMTC_USB_DETECT_N,
+        .gpio_vbus_inverted     = 1,
+        .gpio_pullup            = GPIO_NR_PALMTC_USB_POWER,
+};
+
+/******************************************************************************
+ * Touchscreen / Battery / GPIO-extender
+ ******************************************************************************/
+static struct platform_device palmtc_ucb1400_core = {
+        .name   = "ucb1400_core",
+        .id     = -1,
+};
+
+/******************************************************************************
+ * NOR Flash
+ ******************************************************************************/
+static struct resource palmtc_flash_resource = {
+        .start  = PXA_CS0_PHYS,
+        .end    = PXA_CS0_PHYS + SZ_16M - 1,
+        .flags  = IORESOURCE_MEM,
+};
+
+static struct mtd_partition palmtc_flash_parts[] = {
+        {
+                .name   = "U-Boot Bootloader",
+                .offset = 0x0,
+                .size   = 0x40000,
+        },
+        {
+                .name   = "Linux Kernel",
+                .offset = 0x40000,
+                .size   = 0x2c0000,
+        },
+        {
+                .name   = "Filesystem",
+                .offset = 0x300000,
+                .size   = 0xcc0000,
+        },
+        {
+                .name   = "U-Boot Environment",
+                .offset = 0xfc0000,
+                .size   = MTDPART_SIZ_FULL,
+        },
+};
+
+static struct physmap_flash_data palmtc_flash_data = {
+        .width          = 4,
+        .parts          = palmtc_flash_parts,
+        .nr_parts       = ARRAY_SIZE(palmtc_flash_parts),
+};
+
+static struct platform_device palmtc_flash = {
+        .name           = "physmap-flash",
+        .id             = -1,
+        .resource       = &palmtc_flash_resource,
+        .num_resources  = 1,
+        .dev = {
+                .platform_data  = &palmtc_flash_data,
+        },
+};
+
+/******************************************************************************
+ * Framebuffer
+ ******************************************************************************/
+static struct pxafb_mode_info palmtc_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 palmtc_lcd_screen = {
+        .modes                  = palmtc_lcd_modes,
+        .num_modes              = ARRAY_SIZE(palmtc_lcd_modes),
+        .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
+};
+
+/******************************************************************************
+ * Machine init
+ ******************************************************************************/
+static struct platform_device *devices[] __initdata = {
+        &palmtc_backlight,
+        &palmtc_ucb1400_core,
+        &palmtc_keyboard,
+        &palmtc_pxa_keys,
+        &palmtc_flash,
+};
+
+static void __init palmtc_init(void)
+{
+        pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtc_pin_config));
+
+        set_pxa_fb_info(&palmtc_lcd_screen);
+        pxa_set_mci_info(&palmtc_mci_platform_data);
+        pxa_set_udc_info(&palmtc_udc_info);
+        pxa_set_ac97_info(NULL);
+        pxa_set_ficp_info(&palmtc_ficp_platform_data);
+
+        platform_add_devices(devices, ARRAY_SIZE(devices));
+};
+
+MACHINE_START(PALMTC, "Palm Tungsten|C")
+        .phys_io        = 0x40000000,
+        .boot_params    = 0xa0000100,
+        .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
+        .map_io         = pxa_map_io,
+        .init_irq       = pxa25x_init_irq,
+        .timer          = &pxa_timer,
+        .init_machine   = palmtc_init
+MACHINE_END