1 files changed, 609 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/z2.c b/arch/arm/mach-pxa/z2.c
new file mode 100644
index 000000000000..f5d1ae3db3a4
--- /dev/null
+++ b/arch/arm/mach-pxa/z2.c
@@ -0,0 +1,609 @@
+/*
+ *  linux/arch/arm/mach-pxa/z2.c
+ *
+ *  Support for the Zipit Z2 Handheld device.
+ *
+ *  Author:     Ken McGuire
+ *  Created:    Jan 25, 2009
+ *  Based on mainstone.c as modified for the Zipit Z2.
+ *
+ *  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/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/pwm_backlight.h>
+#include <linux/dma-mapping.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/libertas_spi.h>
+#include <linux/spi/lms283gf05.h>
+#include <linux/power_supply.h>
+#include <linux/mtd/physmap.h>
+#include <linux/gpio.h>
+#include <linux/gpio_keys.h>
+#include <linux/delay.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+
+#include <mach/pxa27x.h>
+#include <mach/mfp-pxa27x.h>
+#include <mach/z2.h>
+#include <mach/pxafb.h>
+#include <mach/mmc.h>
+#include <mach/pxa27x_keypad.h>
+#include <mach/pxa2xx_spi.h>
+
+#include <plat/i2c.h>
+
+#include "generic.h"
+#include "devices.h"
+
+/******************************************************************************
+ * Pin configuration
+ ******************************************************************************/
+static unsigned long z2_pin_config[] = {
+
+        /* LCD - 16bpp Active TFT */
+        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,
+        GPIO19_GPIO,            /* LCD reset */
+        GPIO88_GPIO,            /* LCD chipselect */
+
+        /* PWM */
+        GPIO115_PWM1_OUT,       /* Keypad Backlight */
+        GPIO11_PWM2_OUT,        /* LCD Backlight */
+
+        /* MMC */
+        GPIO32_MMC_CLK,
+        GPIO112_MMC_CMD,
+        GPIO92_MMC_DAT_0,
+        GPIO109_MMC_DAT_1,
+        GPIO110_MMC_DAT_2,
+        GPIO111_MMC_DAT_3,
+        GPIO96_GPIO,            /* SD detect */
+
+        /* STUART */
+        GPIO46_STUART_RXD,
+        GPIO47_STUART_TXD,
+
+        /* 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,
+        GPIO34_KP_MKIN_3        | WAKEUP_ON_LEVEL_HIGH,
+        GPIO38_KP_MKIN_4        | WAKEUP_ON_LEVEL_HIGH,
+        GPIO16_KP_MKIN_5        | WAKEUP_ON_LEVEL_HIGH,
+        GPIO17_KP_MKIN_6        | WAKEUP_ON_LEVEL_HIGH,
+        GPIO103_KP_MKOUT_0,
+        GPIO104_KP_MKOUT_1,
+        GPIO105_KP_MKOUT_2,
+        GPIO106_KP_MKOUT_3,
+        GPIO107_KP_MKOUT_4,
+        GPIO108_KP_MKOUT_5,
+        GPIO35_KP_MKOUT_6,
+        GPIO41_KP_MKOUT_7,
+
+        /* I2C */
+        GPIO117_I2C_SCL,
+        GPIO118_I2C_SDA,
+
+        /* SSP1 */
+        GPIO23_SSP1_SCLK,       /* SSP1_SCK */
+        GPIO25_SSP1_TXD,        /* SSP1_TXD */
+        GPIO26_SSP1_RXD,        /* SSP1_RXD */
+
+        /* SSP2 */
+        GPIO22_SSP2_SCLK,       /* SSP2_SCK */
+        GPIO13_SSP2_TXD,        /* SSP2_TXD */
+        GPIO40_SSP2_RXD,        /* SSP2_RXD */
+
+        /* LEDs */
+        GPIO10_GPIO,            /* WiFi LED */
+        GPIO83_GPIO,            /* Charging LED */
+        GPIO85_GPIO,            /* Charged LED */
+
+        /* I2S */
+        GPIO28_I2S_BITCLK_OUT,
+        GPIO29_I2S_SDATA_IN,
+        GPIO30_I2S_SDATA_OUT,
+        GPIO31_I2S_SYNC,
+        GPIO113_I2S_SYSCLK,
+
+        /* MISC */
+        GPIO0_GPIO,             /* AC power detect */
+        GPIO1_GPIO,             /* Power button */
+        GPIO37_GPIO,            /* Headphone detect */
+        GPIO98_GPIO,            /* Lid switch */
+        GPIO14_GPIO,            /* WiFi Reset */
+        GPIO15_GPIO,            /* WiFi Power */
+        GPIO24_GPIO,            /* WiFi CS */
+        GPIO36_GPIO,            /* WiFi IRQ */
+        GPIO88_GPIO,            /* LCD CS */
+};
+
+/******************************************************************************
+ * NOR Flash
+ ******************************************************************************/
+#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+static struct resource z2_flash_resource = {
+        .start  = PXA_CS0_PHYS,
+        .end    = PXA_CS0_PHYS + SZ_8M - 1,
+        .flags  = IORESOURCE_MEM,
+};
+
+static struct mtd_partition z2_flash_parts[] = {
+        {
+                .name   = "U-Boot Bootloader",
+                .offset = 0x0,
+                .size   = 0x20000,
+        },
+        {
+                .name   = "Linux Kernel",
+                .offset = 0x20000,
+                .size   = 0x220000,
+        },
+        {
+                .name   = "Filesystem",
+                .offset = 0x240000,
+                .size   = 0x5b0000,
+        },
+        {
+                .name   = "U-Boot Environment",
+                .offset = 0x7f0000,
+                .size   = MTDPART_SIZ_FULL,
+        },
+};
+
+static struct physmap_flash_data z2_flash_data = {
+        .width          = 2,
+        .parts          = z2_flash_parts,
+        .nr_parts       = ARRAY_SIZE(z2_flash_parts),
+};
+
+static struct platform_device z2_flash = {
+        .name           = "physmap-flash",
+        .id             = -1,
+        .resource       = &z2_flash_resource,
+        .num_resources  = 1,
+        .dev = {
+                .platform_data  = &z2_flash_data,
+        },
+};
+
+static void __init z2_nor_init(void)
+{
+        platform_device_register(&z2_flash);
+}
+#else
+static inline void z2_nor_init(void) {}
+#endif
+
+/******************************************************************************
+ * Backlight
+ ******************************************************************************/
+#if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
+static struct platform_pwm_backlight_data z2_backlight_data[] = {
+        [0] = {
+                /* Keypad Backlight */
+                .pwm_id         = 1,
+                .max_brightness = 1023,
+                .dft_brightness = 512,
+                .pwm_period_ns  = 1260320,
+        },
+        [1] = {
+                /* LCD Backlight */
+                .pwm_id         = 2,
+                .max_brightness = 1023,
+                .dft_brightness = 512,
+                .pwm_period_ns  = 1260320,
+        },
+};
+
+static struct platform_device z2_backlight_devices[2] = {
+        {
+                .name   = "pwm-backlight",
+                .id     = 0,
+                .dev    = {
+                        .platform_data  = &z2_backlight_data[1],
+                },
+        },
+        {
+                .name   = "pwm-backlight",
+                .id     = 1,
+                .dev    = {
+                        .platform_data  = &z2_backlight_data[0],
+                },
+        },
+};
+static void __init z2_pwm_init(void)
+{
+        platform_device_register(&z2_backlight_devices[0]);
+        platform_device_register(&z2_backlight_devices[1]);
+}
+#else
+static inline void z2_pwm_init(void) {}
+#endif
+
+/******************************************************************************
+ * Framebuffer
+ ******************************************************************************/
+#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
+static struct pxafb_mode_info z2_lcd_modes[] = {
+{
+        .pixclock       = 192000,
+        .xres           = 240,
+        .yres           = 320,
+        .bpp            = 16,
+
+        .left_margin    = 4,
+        .right_margin   = 8,
+        .upper_margin   = 4,
+        .lower_margin   = 8,
+
+        .hsync_len      = 4,
+        .vsync_len      = 4,
+},
+};
+
+static struct pxafb_mach_info z2_lcd_screen = {
+        .modes          = z2_lcd_modes,
+        .num_modes      = ARRAY_SIZE(z2_lcd_modes),
+        .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_BIAS_ACTIVE_LOW |
+                          LCD_ALTERNATE_MAPPING,
+};
+
+static void __init z2_lcd_init(void)
+{
+        set_pxa_fb_info(&z2_lcd_screen);
+}
+#else
+static inline void z2_lcd_init(void) {}
+#endif
+
+/******************************************************************************
+ * SD/MMC card controller
+ ******************************************************************************/
+#if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
+static struct pxamci_platform_data z2_mci_platform_data = {
+        .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
+        .gpio_card_detect       = GPIO96_ZIPITZ2_SD_DETECT,
+        .gpio_power             = -1,
+        .gpio_card_ro           = -1,
+        .detect_delay_ms        = 200,
+};
+
+static void __init z2_mmc_init(void)
+{
+        pxa_set_mci_info(&z2_mci_platform_data);
+}
+#else
+static inline void z2_mmc_init(void) {}
+#endif
+
+/******************************************************************************
+ * LEDs
+ ******************************************************************************/
+#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
+struct gpio_led z2_gpio_leds[] = {
+{
+        .name                   = "z2:green:wifi",
+        .default_trigger        = "none",
+        .gpio                   = GPIO10_ZIPITZ2_LED_WIFI,
+        .active_low             = 1,
+}, {
+        .name                   = "z2:green:charged",
+        .default_trigger        = "none",
+        .gpio                   = GPIO85_ZIPITZ2_LED_CHARGED,
+        .active_low             = 1,
+}, {
+        .name                   = "z2:amber:charging",
+        .default_trigger        = "none",
+        .gpio                   = GPIO83_ZIPITZ2_LED_CHARGING,
+        .active_low             = 1,
+},
+};
+
+static struct gpio_led_platform_data z2_gpio_led_info = {
+        .leds           = z2_gpio_leds,
+        .num_leds       = ARRAY_SIZE(z2_gpio_leds),
+};
+
+static struct platform_device z2_leds = {
+        .name   = "leds-gpio",
+        .id     = -1,
+        .dev    = {
+                .platform_data  = &z2_gpio_led_info,
+        }
+};
+
+static void __init z2_leds_init(void)
+{
+        platform_device_register(&z2_leds);
+}
+#else
+static inline void z2_leds_init(void) {}
+#endif
+
+/******************************************************************************
+ * GPIO keyboard
+ ******************************************************************************/
+#if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
+static unsigned int z2_matrix_keys[] = {
+        KEY(0, 0, KEY_OPTION),
+        KEY(1, 0, KEY_UP),
+        KEY(2, 0, KEY_DOWN),
+        KEY(3, 0, KEY_LEFT),
+        KEY(4, 0, KEY_RIGHT),
+        KEY(5, 0, KEY_END),
+        KEY(6, 0, KEY_KPPLUS),
+
+        KEY(0, 1, KEY_HOME),
+        KEY(1, 1, KEY_Q),
+        KEY(2, 1, KEY_I),
+        KEY(3, 1, KEY_G),
+        KEY(4, 1, KEY_X),
+        KEY(5, 1, KEY_ENTER),
+        KEY(6, 1, KEY_KPMINUS),
+
+        KEY(0, 2, KEY_PAGEUP),
+        KEY(1, 2, KEY_W),
+        KEY(2, 2, KEY_O),
+        KEY(3, 2, KEY_H),
+        KEY(4, 2, KEY_C),
+        KEY(5, 2, KEY_LEFTALT),
+
+        KEY(0, 3, KEY_PAGEDOWN),
+        KEY(1, 3, KEY_E),
+        KEY(2, 3, KEY_P),
+        KEY(3, 3, KEY_J),
+        KEY(4, 3, KEY_V),
+        KEY(5, 3, KEY_LEFTSHIFT),
+
+        KEY(0, 4, KEY_ESC),
+        KEY(1, 4, KEY_R),
+        KEY(2, 4, KEY_A),
+        KEY(3, 4, KEY_K),
+        KEY(4, 4, KEY_B),
+        KEY(5, 4, KEY_LEFTCTRL),
+
+        KEY(0, 5, KEY_TAB),
+        KEY(1, 5, KEY_T),
+        KEY(2, 5, KEY_S),
+        KEY(3, 5, KEY_L),
+        KEY(4, 5, KEY_N),
+        KEY(5, 5, KEY_SPACE),
+
+        KEY(0, 6, KEY_STOPCD),
+        KEY(1, 6, KEY_Y),
+        KEY(2, 6, KEY_D),
+        KEY(3, 6, KEY_BACKSPACE),
+        KEY(4, 6, KEY_M),
+        KEY(5, 6, KEY_COMMA),
+
+        KEY(0, 7, KEY_PLAYCD),
+        KEY(1, 7, KEY_U),
+        KEY(2, 7, KEY_F),
+        KEY(3, 7, KEY_Z),
+        KEY(4, 7, KEY_SEMICOLON),
+        KEY(5, 7, KEY_DOT),
+};
+
+static struct pxa27x_keypad_platform_data z2_keypad_platform_data = {
+        .matrix_key_rows        = 7,
+        .matrix_key_cols        = 8,
+        .matrix_key_map         = z2_matrix_keys,
+        .matrix_key_map_size    = ARRAY_SIZE(z2_matrix_keys),
+
+        .debounce_interval      = 30,
+};
+
+static void __init z2_mkp_init(void)
+{
+        pxa_set_keypad_info(&z2_keypad_platform_data);
+}
+#else
+static inline void z2_mkp_init(void) {}
+#endif
+
+/******************************************************************************
+ * GPIO keys
+ ******************************************************************************/
+#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+static struct gpio_keys_button z2_pxa_buttons[] = {
+        {KEY_POWER, GPIO1_ZIPITZ2_POWER_BUTTON, 0, "Power Button" },
+        {KEY_CLOSE, GPIO98_ZIPITZ2_LID_BUTTON, 0, "Lid Button" },
+};
+
+static struct gpio_keys_platform_data z2_pxa_keys_data = {
+        .buttons        = z2_pxa_buttons,
+        .nbuttons       = ARRAY_SIZE(z2_pxa_buttons),
+};
+
+static struct platform_device z2_pxa_keys = {
+        .name   = "gpio-keys",
+        .id     = -1,
+        .dev    = {
+                .platform_data = &z2_pxa_keys_data,
+        },
+};
+
+static void __init z2_keys_init(void)
+{
+        platform_device_register(&z2_pxa_keys);
+}
+#else
+static inline void z2_keys_init(void) {}
+#endif
+
+/******************************************************************************
+ * SSP Devices - WiFi and LCD control
+ ******************************************************************************/
+#if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
+/* WiFi */
+static int z2_lbs_spi_setup(struct spi_device *spi)
+{
+        int ret = 0;
+
+        ret = gpio_request(GPIO15_ZIPITZ2_WIFI_POWER, "WiFi Power");
+        if (ret)
+                goto err;
+
+        ret = gpio_direction_output(GPIO15_ZIPITZ2_WIFI_POWER, 1);
+        if (ret)
+                goto err2;
+
+        ret = gpio_request(GPIO14_ZIPITZ2_WIFI_RESET, "WiFi Reset");
+        if (ret)
+                goto err2;
+
+        ret = gpio_direction_output(GPIO14_ZIPITZ2_WIFI_RESET, 0);
+        if (ret)
+                goto err3;
+
+        /* Reset the card */
+        mdelay(180);
+        gpio_set_value(GPIO14_ZIPITZ2_WIFI_RESET, 1);
+        mdelay(20);
+
+        spi->bits_per_word = 16;
+        spi->mode = SPI_MODE_2,
+
+        spi_setup(spi);
+
+        return 0;
+
+err3:
+        gpio_free(GPIO14_ZIPITZ2_WIFI_RESET);
+err2:
+        gpio_free(GPIO15_ZIPITZ2_WIFI_POWER);
+err:
+        return ret;
+};
+
+static int z2_lbs_spi_teardown(struct spi_device *spi)
+{
+        gpio_set_value(GPIO14_ZIPITZ2_WIFI_RESET, 0);
+        gpio_set_value(GPIO15_ZIPITZ2_WIFI_POWER, 0);
+        gpio_free(GPIO14_ZIPITZ2_WIFI_RESET);
+        gpio_free(GPIO15_ZIPITZ2_WIFI_POWER);
+        return 0;
+
+};
+
+static struct pxa2xx_spi_chip z2_lbs_chip_info = {
+        .rx_threshold   = 8,
+        .tx_threshold   = 8,
+        .timeout        = 1000,
+        .gpio_cs        = GPIO24_ZIPITZ2_WIFI_CS,
+};
+
+static struct libertas_spi_platform_data z2_lbs_pdata = {
+        .use_dummy_writes       = 1,
+        .setup                  = z2_lbs_spi_setup,
+        .teardown               = z2_lbs_spi_teardown,
+};
+
+/* LCD */
+static struct pxa2xx_spi_chip lms283_chip_info = {
+        .rx_threshold   = 1,
+        .tx_threshold   = 1,
+        .timeout        = 64,
+        .gpio_cs        = GPIO88_ZIPITZ2_LCD_CS,
+};
+
+static const struct lms283gf05_pdata lms283_pdata = {
+        .reset_gpio     = GPIO19_ZIPITZ2_LCD_RESET,
+};
+
+static struct spi_board_info spi_board_info[] __initdata = {
+{
+        .modalias               = "libertas_spi",
+        .platform_data          = &z2_lbs_pdata,
+        .controller_data        = &z2_lbs_chip_info,
+        .irq                    = gpio_to_irq(GPIO36_ZIPITZ2_WIFI_IRQ),
+        .max_speed_hz           = 13000000,
+        .bus_num                = 1,
+        .chip_select            = 0,
+},
+{
+        .modalias               = "lms283gf05",
+        .controller_data        = &lms283_chip_info,
+        .platform_data          = &lms283_pdata,
+        .max_speed_hz           = 400000,
+        .bus_num                = 2,
+        .chip_select            = 0,
+},
+};
+
+static struct pxa2xx_spi_master pxa_ssp1_master_info = {
+        .clock_enable   = CKEN_SSP,
+        .num_chipselect = 1,
+        .enable_dma     = 1,
+};
+
+static struct pxa2xx_spi_master pxa_ssp2_master_info = {
+        .clock_enable   = CKEN_SSP2,
+        .num_chipselect = 1,
+};
+
+static void __init z2_spi_init(void)
+{
+        pxa2xx_set_spi_info(1, &pxa_ssp1_master_info);
+        pxa2xx_set_spi_info(2, &pxa_ssp2_master_info);
+        spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
+}
+#else
+static inline void z2_spi_init(void) {}
+#endif
+
+/******************************************************************************
+ * Machine init
+ ******************************************************************************/
+static void __init z2_init(void)
+{
+        pxa2xx_mfp_config(ARRAY_AND_SIZE(z2_pin_config));
+
+        z2_lcd_init();
+        z2_mmc_init();
+        z2_mkp_init();
+
+        pxa_set_i2c_info(NULL);
+
+        z2_spi_init();
+        z2_nor_init();
+        z2_pwm_init();
+        z2_leds_init();
+        z2_keys_init();
+}
+
+MACHINE_START(ZIPIT2, "Zipit Z2")
+        .phys_io        = 0x40000000,
+        .boot_params    = 0xa0000100,
+        .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
+        .map_io         = pxa_map_io,
+        .init_irq       = pxa27x_init_irq,
+        .timer          = &pxa_timer,
+        .init_machine   = z2_init,
+MACHINE_END