aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/mach-pxa/z2.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-pxa/z2.c')
-rw-r--r--arch/arm/mach-pxa/z2.c603
1 files changed, 603 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..d303c6929d32
--- /dev/null
+++ b/arch/arm/mach-pxa/z2.c
@@ -0,0 +1,603 @@
+/*
+ * linux/arch/arm/mach-pxa/z2.c
+ *
+ * Support for the Zipit Z2 Handheld device.
+ *
+ * Copyright (C) 2009-2010 Marek Vasut <marek.vasut@gmail.com>
+ *
+ * Based on research and code by: Ken McGuire
+ * 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 = 0x40000,
+ }, {
+ .name = "U-Boot Environment",
+ .offset = 0x40000,
+ .size = 0x60000,
+ }, {
+ .name = "Flash",
+ .offset = 0x60000,
+ .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
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-25 22:48:47 +0000