]> www.pilppa.org Git - linux-2.6-omap-h63xx.git/blobdiff - arch/arm/mach-omap2/board-2430sdp.c
ARM: OMAP: 2430: add serial console ATAG
[linux-2.6-omap-h63xx.git] / arch / arm / mach-omap2 / board-2430sdp.c
index 5ee970bec39f1e63c78baa0eb7dbbe541188ba03..acfdf3ac3483aab3f70aa9d8a4289747b5790750 100644 (file)
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 #include <linux/delay.h>
+#include <linux/input.h>
 #include <linux/err.h>
 #include <linux/clk.h>
 #include <linux/spi/spi.h>
-#include <linux/spi/tsc2046.h>
+#include <linux/spi/ads7846.h>
 
 #include <asm/hardware.h>
 #include <asm/mach-types.h>
 #include <asm/arch/mux.h>
 #include <asm/arch/board.h>
 #include <asm/arch/common.h>
+#include <asm/arch/keypad.h>
 #include <asm/arch/gpmc.h>
 #include <asm/arch/mcspi.h>
-#include "prcm-regs.h"
+#include <asm/arch/twl4030-rtc.h>
 
 #include <asm/io.h>
 
 #define        SDP2430_FLASH_CS        0
 #define        SDP2430_SMC91X_CS       5
 
-/* TSC2046 (touchscreen) */
+/* GPIO used for TSC2046 (touchscreen)
+ *
+ * Also note that the tsc2046 is the same silicon as the ads7846, so
+ * that driver is used for the touchscreen. */
 #define TS_GPIO                 24
 
+#define TWL4030_MSECURE_GPIO   118
+#define SECONDARY_LCD_GPIO     147
+
 static struct mtd_partition sdp2430_partitions[] = {
        /* bootloader (U-Boot, etc) in first sector */
        {
@@ -113,6 +121,11 @@ static struct resource sdp2430_smc91x_resources[] = {
        },
 };
 
+static struct platform_device sdp2430_lcd_device = {
+       .name           = "sdp2430_lcd",
+       .id             = -1,
+};
+
 static struct platform_device sdp2430_smc91x_device = {
        .name           = "smc91x",
        .id             = -1,
@@ -120,14 +133,126 @@ static struct platform_device sdp2430_smc91x_device = {
        .resource       = sdp2430_smc91x_resources,
 };
 
+/*
+ * Key mapping for 2430 SDP board
+ */
+
+static int sdp2430_keymap[] = {
+       KEY(0, 0, KEY_LEFT),
+       KEY(0, 1, KEY_RIGHT),
+       KEY(0, 2, KEY_A),
+       KEY(0, 3, KEY_B),
+       KEY(0, 4, KEY_C),
+       KEY(1, 0, KEY_DOWN),
+       KEY(1, 1, KEY_UP),
+       KEY(1, 2, KEY_E),
+       KEY(1, 3, KEY_F),
+       KEY(1, 4, KEY_G),
+       KEY(2, 0, KEY_ENTER),
+       KEY(2, 1, KEY_I),
+       KEY(2, 2, KEY_J),
+       KEY(2, 3, KEY_K),
+       KEY(2, 4, KEY_3),
+       KEY(3, 0, KEY_M),
+       KEY(3, 1, KEY_N),
+       KEY(3, 2, KEY_O),
+       KEY(3, 3, KEY_P),
+       KEY(3, 4, KEY_Q),
+       KEY(4, 0, KEY_R),
+       KEY(4, 1, KEY_4),
+       KEY(4, 2, KEY_T),
+       KEY(4, 3, KEY_U),
+       KEY(4, 4, KEY_D),
+       KEY(5, 0, KEY_V),
+       KEY(5, 1, KEY_W),
+       KEY(5, 2, KEY_L),
+       KEY(5, 3, KEY_S),
+       KEY(5, 4, KEY_H),
+       0
+};
+
+static struct omap_kp_platform_data sdp2430_kp_data = {
+       .rows           = 5,
+       .cols           = 6,
+       .keymap         = sdp2430_keymap,
+       .keymapsize     = ARRAY_SIZE(sdp2430_keymap),
+       .rep            = 1,
+};
+
+static struct platform_device sdp2430_kp_device = {
+       .name           = "omap_twl4030keypad",
+       .id             = -1,
+       .dev            = {
+               .platform_data  = &sdp2430_kp_data,
+       },
+};
+
+static int twl4030_rtc_init(void)
+{
+       int ret = 0;
+
+       ret = omap_request_gpio(TWL4030_MSECURE_GPIO);
+       if (ret < 0) {
+               printk(KERN_ERR "twl4030_rtc_init: can't reserve GPIO:%d !\n",
+                       TWL4030_MSECURE_GPIO);
+               goto out;
+       }
+       /*
+        * TWL4030 will be in secure mode if msecure line from OMAP is low.
+        * Make msecure line high in order to change the TWL4030 RTC time
+        * and calender registers.
+        */
+       omap_set_gpio_direction(TWL4030_MSECURE_GPIO, 0);       /*dir out */
+       omap_set_gpio_dataout(TWL4030_MSECURE_GPIO, 1);
+out:
+       return ret;
+}
+
+static void twl4030_rtc_exit(void)
+{
+       omap_free_gpio(TWL4030_MSECURE_GPIO);
+}
+
+static struct twl4030rtc_platform_data sdp2430_twl4030rtc_data = {
+       .init = &twl4030_rtc_init,
+       .exit = &twl4030_rtc_exit,
+};
+
+static struct platform_device sdp2430_twl4030rtc_device = {
+       .name           = "twl4030_rtc",
+       .id             = -1,
+       .dev            = {
+               .platform_data  = &sdp2430_twl4030rtc_data,
+       },
+};
+
 static struct platform_device *sdp2430_devices[] __initdata = {
        &sdp2430_smc91x_device,
        &sdp2430_flash_device,
+       &sdp2430_kp_device,
+       &sdp2430_lcd_device,
+       &sdp2430_twl4030rtc_device,     
 };
 
-static struct tsc2046_platform_data tsc2046_config = {
-       .dav_gpio       = TS_GPIO,
-       .gpio_debounce  = 0xa,
+static void ads7846_dev_init(void)
+{
+       if (omap_request_gpio(TS_GPIO) < 0)
+               printk(KERN_ERR "can't get ads746 pen down GPIO\n");
+
+       omap_set_gpio_direction(TS_GPIO, 1);
+
+       omap_set_gpio_debounce(TS_GPIO, 1);
+       omap_set_gpio_debounce_time(TS_GPIO, 0xa);
+}
+
+static int ads7846_get_pendown_state(void)
+{
+       return !omap_get_gpio_datain(TS_GPIO);
+}
+
+static struct ads7846_platform_data tsc2046_config __initdata = {
+       .get_pendown_state = ads7846_get_pendown_state,
+       .keep_vref_on      = 1,
 };
 
 static struct omap2_mcspi_device_config tsc2046_mcspi_config = {
@@ -135,16 +260,23 @@ static struct omap2_mcspi_device_config tsc2046_mcspi_config = {
        .single_channel = 0,  /* 0: slave, 1: master */
 };
 
+static struct omap_lcd_config sdp2430_lcd_config __initdata = {
+       .ctrl_name      = "internal",
+};
+
 static struct spi_board_info sdp2430_spi_board_info[] __initdata = {
        [0] = {
-               /* TSC2046 operates at a max freqency of 2MHz, so
-                * operate slightly below at 1.5MHz */
-               .modalias       = "tsc2046",
-               .bus_num        = 1,
-               .chip_select    = 0,
-               .max_speed_hz   = 1500000,
-               .controller_data= &tsc2046_mcspi_config,
-               .platform_data  = &tsc2046_config,
+               /*
+                * TSC2046 operates at a max freqency of 2MHz, so
+                * operate slightly below at 1.5MHz
+                */
+               .modalias        = "ads7846",
+               .bus_num         = 1,
+               .chip_select     = 0,
+               .max_speed_hz    = 1500000,
+               .controller_data = &tsc2046_mcspi_config,
+               .irq             = OMAP_GPIO_IRQ(TS_GPIO),
+               .platform_data   = &tsc2046_config,
        },
 };
 
@@ -217,8 +349,16 @@ static struct omap_uart_config sdp2430_uart_config __initdata = {
        .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
 };
 
-static struct omap_board_config_kernel sdp2430_config[] = {
+static
+struct omap_serial_console_config sdp2430_serial_console_config __initdata = {
+       .console_uart = 1,
+       .console_speed = 115200,
+};
+
+static struct omap_board_config_kernel sdp2430_config[] __initdata = {
        {OMAP_TAG_UART, &sdp2430_uart_config},
+       {OMAP_TAG_LCD, &sdp2430_lcd_config},
+       {OMAP_TAG_SERIAL_CONSOLE, &sdp2430_serial_console_config},
 };
 
 #if    defined(CONFIG_I2C_OMAP) || defined(CONFIG_I2C_OMAP_MODULE)
@@ -294,6 +434,7 @@ static int __init omap2430_i2c_init(void)
 }
 
 extern void __init sdp2430_flash_init(void);
+extern void __init sdp2430_usb_init(void);
 
 static void __init omap_2430sdp_init(void)
 {
@@ -303,9 +444,15 @@ static void __init omap_2430sdp_init(void)
        omap_serial_init();
 
        sdp2430_flash_init();
+       sdp2430_usb_init();
 
        spi_register_board_info(sdp2430_spi_board_info,
                                ARRAY_SIZE(sdp2430_spi_board_info));
+       ads7846_dev_init();
+
+       /* turn off secondary LCD backlight */
+       omap_set_gpio_direction(SECONDARY_LCD_GPIO, 0);
+       omap_set_gpio_dataout(SECONDARY_LCD_GPIO, 0);
 }
 
 static void __init omap_2430sdp_map_io(void)