]> www.pilppa.org Git - linux-2.6-omap-h63xx.git/blobdiff - arch/arm/mach-at91/board-sam9261ek.c
[ARM] 4420/2: AT91: GPIO buttons on SAM9261-EK board
[linux-2.6-omap-h63xx.git] / arch / arm / mach-at91 / board-sam9261ek.c
index b7e772467cf6bb056f1d582a39e9fdf96fde718a..42e172cb0f49bfe2d0e40d9382d574234f712f3e 100644 (file)
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/spi/spi.h>
+#include <linux/spi/ads7846.h>
 #include <linux/dm9000.h>
+#include <linux/fb.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+
+#include <video/atmel_lcdc.h>
 
 #include <asm/hardware.h>
 #include <asm/setup.h>
@@ -59,6 +65,9 @@ static void __init ek_map_io(void)
        /* Initialize processor: 18.432 MHz crystal */
        at91sam9261_initialize(18432000);
 
+       /* Setup the LEDs */
+       at91_init_leds(AT91_PIN_PA13, AT91_PIN_PA14);
+
        /* Setup the serial ports and console */
        at91_init_serial(&ek_uart_config);
 }
@@ -174,7 +183,7 @@ static struct mtd_partition __initdata ek_nand_partition[] = {
        },
 };
 
-static struct mtd_partition *nand_partitions(int size, int *num_partitions)
+static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 {
        *num_partitions = ARRAY_SIZE(ek_nand_partition);
        return ek_nand_partition;
@@ -194,6 +203,41 @@ static struct at91_nand_data __initdata ek_nand_data = {
 #endif
 };
 
+/*
+ * ADS7846 Touchscreen
+ */
+#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
+
+static int ads7843_pendown_state(void)
+{
+       return !at91_get_gpio_value(AT91_PIN_PC2);      /* Touchscreen PENIRQ */
+}
+
+static struct ads7846_platform_data ads_info = {
+       .model                  = 7843,
+       .x_min                  = 150,
+       .x_max                  = 3830,
+       .y_min                  = 190,
+       .y_max                  = 3830,
+       .vref_delay_usecs       = 100,
+       .x_plate_ohms           = 450,
+       .y_plate_ohms           = 250,
+       .pressure_max           = 15000,
+       .debounce_max           = 1,
+       .debounce_rep           = 0,
+       .debounce_tol           = (~0),
+       .get_pendown_state      = ads7843_pendown_state,
+};
+
+static void __init ek_add_device_ts(void)
+{
+       at91_set_B_periph(AT91_PIN_PC2, 1);     /* External IRQ0, with pullup */
+       at91_set_gpio_input(AT91_PIN_PA11, 1);  /* Touchscreen BUSY signal */
+}
+#else
+static void __init ek_add_device_ts(void) {}
+#endif
+
 /*
  * SPI devices
  */
@@ -204,6 +248,16 @@ static struct spi_board_info ek_spi_devices[] = {
                .max_speed_hz   = 15 * 1000 * 1000,
                .bus_num        = 0,
        },
+#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
+       {
+               .modalias       = "ads7846",
+               .chip_select    = 2,
+               .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
+               .bus_num        = 0,
+               .platform_data  = &ads_info,
+               .irq            = AT91SAM9261_ID_IRQ0,
+       },
+#endif
 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
        {       /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
                .modalias       = "mtd_dataflash",
@@ -211,9 +265,9 @@ static struct spi_board_info ek_spi_devices[] = {
                .max_speed_hz   = 15 * 1000 * 1000,
                .bus_num        = 0,
        },
-#elif defined(CONFIG_SND_AT73C213)
+#elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
        {       /* AT73C213 DAC */
-               .modalias       = "snd_at73c213",
+               .modalias       = "at73c213",
                .chip_select    = 3,
                .max_speed_hz   = 10 * 1000 * 1000,
                .bus_num        = 0,
@@ -222,6 +276,127 @@ static struct spi_board_info ek_spi_devices[] = {
 };
 
 
+/*
+ * LCD Controller
+ */
+#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
+static struct fb_videomode at91_tft_vga_modes[] = {
+       {
+               .name           = "TX09D50VM1CCA @ 60",
+               .refresh        = 60,
+               .xres           = 240,          .yres           = 320,
+               .pixclock       = KHZ2PICOS(4965),
+
+               .left_margin    = 1,            .right_margin   = 33,
+               .upper_margin   = 1,            .lower_margin   = 0,
+               .hsync_len      = 5,            .vsync_len      = 1,
+
+               .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+               .vmode          = FB_VMODE_NONINTERLACED,
+       },
+};
+
+static struct fb_monspecs at91fb_default_monspecs = {
+       .manufacturer   = "HIT",
+       .monitor        = "TX09D50VM1CCA",
+
+       .modedb         = at91_tft_vga_modes,
+       .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
+       .hfmin          = 15000,
+       .hfmax          = 64000,
+       .vfmin          = 50,
+       .vfmax          = 150,
+};
+
+#define AT91SAM9261_DEFAULT_LCDCON2    (ATMEL_LCDC_MEMOR_LITTLE \
+                                       | ATMEL_LCDC_DISTYPE_TFT    \
+                                       | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
+
+static void at91_lcdc_power_control(int on)
+{
+       if (on)
+               at91_set_gpio_value(AT91_PIN_PA12, 0);  /* power up */
+       else
+               at91_set_gpio_value(AT91_PIN_PA12, 1);  /* power down */
+}
+
+/* Driver datas */
+static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
+       .default_bpp                    = 16,
+       .default_dmacon                 = ATMEL_LCDC_DMAEN,
+       .default_lcdcon2                = AT91SAM9261_DEFAULT_LCDCON2,
+       .default_monspecs               = &at91fb_default_monspecs,
+       .atmel_lcdfb_power_control      = at91_lcdc_power_control,
+       .guard_time                     = 1,
+};
+
+#else
+static struct atmel_lcdfb_info __initdata ek_lcdc_data;
+#endif
+
+
+/*
+ * GPIO Buttons
+ */
+#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+static struct gpio_keys_button ek_buttons[] = {
+       {
+               .gpio           = AT91_PIN_PA27,
+               .keycode        = BTN_0,
+               .desc           = "Button 0",
+               .active_low     = 1,
+       },
+       {
+               .gpio           = AT91_PIN_PA26,
+               .keycode        = BTN_1,
+               .desc           = "Button 1",
+               .active_low     = 1,
+       },
+       {
+               .gpio           = AT91_PIN_PA25,
+               .keycode        = BTN_2,
+               .desc           = "Button 2",
+               .active_low     = 1,
+       },
+       {
+               .gpio           = AT91_PIN_PA24,
+               .keycode        = BTN_3,
+               .desc           = "Button 3",
+               .active_low     = 1,
+       }
+};
+
+static struct gpio_keys_platform_data ek_button_data = {
+       .buttons        = ek_buttons,
+       .nbuttons       = ARRAY_SIZE(ek_buttons),
+};
+
+static struct platform_device ek_button_device = {
+       .name           = "gpio-keys",
+       .id             = -1,
+       .num_resources  = 0,
+       .dev            = {
+               .platform_data  = &ek_button_data,
+       }
+};
+
+static void __init ek_add_device_buttons(void)
+{
+       at91_set_gpio_input(AT91_PIN_PB27, 0);  /* btn0 */
+       at91_set_deglitch(AT91_PIN_PB27, 1);
+       at91_set_gpio_input(AT91_PIN_PB26, 0);  /* btn1 */
+       at91_set_deglitch(AT91_PIN_PB26, 1);
+       at91_set_gpio_input(AT91_PIN_PB25, 0);  /* btn2 */
+       at91_set_deglitch(AT91_PIN_PB25, 1);
+       at91_set_gpio_input(AT91_PIN_PB24, 0);  /* btn3 */
+       at91_set_deglitch(AT91_PIN_PB24, 1);
+
+       platform_device_register(&ek_button_device);
+}
+#else
+static void __init ek_add_device_buttons(void) {}
+#endif
+
 static void __init ek_board_init(void)
 {
        /* Serial */
@@ -241,10 +416,16 @@ static void __init ek_board_init(void)
 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
        /* SPI */
        at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
+       /* Touchscreen */
+       ek_add_device_ts();
 #else
        /* MMC */
        at91_add_device_mmc(0, &ek_mmc_data);
 #endif
+       /* LCD Controller */
+       at91_add_device_lcdc(&ek_lcdc_data);
+       /* Push Buttons */
+       ek_add_device_buttons();
 }
 
 MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")