Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux-2.6.git] / arch / arm / mach-at91 / board-sam9g20ek.c
index 688295f..29cf831 100644 (file)
 #include <linux/platform_device.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/at73c213.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
 #include <linux/clk.h>
 
-#include <asm/arch/hardware.h>
+#include <mach/hardware.h>
 #include <asm/setup.h>
 #include <asm/mach-types.h>
 #include <asm/irq.h>
 #include <asm/mach/map.h>
 #include <asm/mach/irq.h>
 
-#include <asm/arch/board.h>
-#include <asm/arch/gpio.h>
+#include <mach/board.h>
+#include <mach/gpio.h>
+#include <mach/at91sam9_smc.h>
 
+#include "sam9_smc.h"
 #include "generic.h"
 
 
@@ -46,7 +50,7 @@ static void __init ek_map_io(void)
        /* Initialize processor: 18.432 MHz crystal */
        at91sam9260_initialize(18432000);
 
-       /* DGBU on ttyS0. (Rx & Tx only) */
+       /* DBGU on ttyS0. (Rx & Tx only) */
        at91_register_uart(0, 0, 0);
 
        /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
@@ -122,16 +126,16 @@ static struct mtd_partition __initdata ek_nand_partition[] = {
        {
                .name   = "Bootstrap",
                .offset = 0,
-               .size   = 4 * 1024 * 1024,
+               .size   = 4 * SZ_1M,
        },
        {
                .name   = "Partition 1",
-               .offset = 4 * 1024 * 1024,
-               .size   = 60 * 1024 * 1024,
+               .offset = MTDPART_OFS_NXTBLK,
+               .size   = 60 * SZ_1M,
        },
        {
                .name   = "Partition 2",
-               .offset = 64 * 1024 * 1024,
+               .offset = MTDPART_OFS_NXTBLK,
                .size   = MTDPART_SIZ_FULL,
        },
 };
@@ -149,13 +153,45 @@ static struct atmel_nand_data __initdata ek_nand_data = {
        .rdy_pin        = AT91_PIN_PC13,
        .enable_pin     = AT91_PIN_PC14,
        .partition_info = nand_partitions,
-#if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
+#if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
        .bus_width_16   = 1,
 #else
        .bus_width_16   = 0,
 #endif
 };
 
+static struct sam9_smc_config __initdata ek_nand_smc_config = {
+       .ncs_read_setup         = 0,
+       .nrd_setup              = 2,
+       .ncs_write_setup        = 0,
+       .nwe_setup              = 2,
+
+       .ncs_read_pulse         = 4,
+       .nrd_pulse              = 4,
+       .ncs_write_pulse        = 4,
+       .nwe_pulse              = 4,
+
+       .read_cycle             = 7,
+       .write_cycle            = 7,
+
+       .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
+       .tdf_cycles             = 3,
+};
+
+static void __init ek_add_device_nand(void)
+{
+       /* setup bus-width (8 or 16) */
+       if (ek_nand_data.bus_width_16)
+               ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
+       else
+               ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
+
+       /* configure chip-select 3 (NAND) */
+       sam9_smc_configure(3, &ek_nand_smc_config);
+
+       at91_add_device_nand(&ek_nand_data);
+}
+
 
 /*
  * MCI (SD/MMC)
@@ -184,6 +220,64 @@ static struct gpio_led ek_leds[] = {
        }
 };
 
+
+/*
+ * GPIO Buttons
+ */
+#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+static struct gpio_keys_button ek_buttons[] = {
+       {
+               .gpio           = AT91_PIN_PA30,
+               .code           = BTN_3,
+               .desc           = "Button 3",
+               .active_low     = 1,
+               .wakeup         = 1,
+       },
+       {
+               .gpio           = AT91_PIN_PA31,
+               .code           = BTN_4,
+               .desc           = "Button 4",
+               .active_low     = 1,
+               .wakeup         = 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_PA30, 1);  /* btn3 */
+       at91_set_deglitch(AT91_PIN_PA30, 1);
+       at91_set_gpio_input(AT91_PIN_PA31, 1);  /* btn4 */
+       at91_set_deglitch(AT91_PIN_PA31, 1);
+
+       platform_device_register(&ek_button_device);
+}
+#else
+static void __init ek_add_device_buttons(void) {}
+#endif
+
+
+static struct i2c_board_info __initdata ek_i2c_devices[] = {
+       {
+               I2C_BOARD_INFO("24c512", 0x50),
+               I2C_BOARD_INFO("wm8731", 0x1b),
+       },
+};
+
+
 static void __init ek_board_init(void)
 {
        /* Serial */
@@ -195,15 +289,21 @@ static void __init ek_board_init(void)
        /* SPI */
        at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
        /* NAND */
-       at91_add_device_nand(&ek_nand_data);
+       ek_add_device_nand();
        /* Ethernet */
        at91_add_device_eth(&ek_macb_data);
        /* MMC */
        at91_add_device_mmc(0, &ek_mmc_data);
        /* I2C */
-       at91_add_device_i2c(NULL, 0);
+       at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
        /* LEDs */
        at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
+       /* Push Buttons */
+       ek_add_device_buttons();
+       /* PCK0 provides MCLK to the WM8731 */
+       at91_set_B_periph(AT91_PIN_PC1, 0);
+       /* SSC (for WM8731) */
+       at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX);
 }
 
 MACHINE_START(AT91SAM9G20EK, "Atmel AT91SAM9G20-EK")