1 files changed, 420 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/board-sam9g20ek.c b/arch/arm/mach-at91/board-sam9g20ek.c
new file mode 100644
index 00000000..1325a501
--- /dev/null
+++ b/arch/arm/mach-at91/board-sam9g20ek.c
@@ -0,0 +1,420 @@
+/*
+ *  Copyright (C) 2005 SAN People
+ *  Copyright (C) 2008 Atmel
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#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 <linux/regulator/machine.h>
+#include <linux/regulator/fixed.h>
+#include <linux/regulator/consumer.h>
+
+#include <mach/hardware.h>
+#include <asm/setup.h>
+#include <asm/mach-types.h>
+#include <asm/irq.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <mach/board.h>
+#include <mach/gpio.h>
+#include <mach/at91sam9_smc.h>
+#include <mach/system_rev.h>
+
+#include "sam9_smc.h"
+#include "generic.h"
+
+/*
+ * board revision encoding
+ * bit 0:
+ * 	0 => 1 sd/mmc slot
+ * 	1 => 2 sd/mmc slots connectors (board from revision C)
+ */
+#define HAVE_2MMC	(1 << 0)
+static int inline ek_have_2mmc(void)
+{
+	return machine_is_at91sam9g20ek_2mmc() || (system_rev & HAVE_2MMC);
+}
+
+
+static void __init ek_init_early(void)
+{
+	/* Initialize processor: 18.432 MHz crystal */
+	at91sam9260_initialize(18432000);
+
+	/* DBGU on ttyS0. (Rx & Tx only) */
+	at91_register_uart(0, 0, 0);
+
+	/* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
+	at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
+			   | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
+			   | ATMEL_UART_RI);
+
+	/* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
+	at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
+
+	/* set serial console to ttyS0 (ie, DBGU) */
+	at91_set_serial_console(0);
+}
+
+static void __init ek_init_irq(void)
+{
+	at91sam9260_init_interrupts(NULL);
+}
+
+
+/*
+ * USB Host port
+ */
+static struct at91_usbh_data __initdata ek_usbh_data = {
+	.ports		= 2,
+};
+
+/*
+ * USB Device port
+ */
+static struct at91_udc_data __initdata ek_udc_data = {
+	.vbus_pin	= AT91_PIN_PC5,
+	.pullup_pin	= 0,		/* pull-up driven by UDC */
+};
+
+
+/*
+ * SPI devices.
+ */
+static struct spi_board_info ek_spi_devices[] = {
+#if !(defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_AT91))
+	{	/* DataFlash chip */
+		.modalias	= "mtd_dataflash",
+		.chip_select	= 1,
+		.max_speed_hz	= 15 * 1000 * 1000,
+		.bus_num	= 0,
+	},
+#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
+	{	/* DataFlash card */
+		.modalias	= "mtd_dataflash",
+		.chip_select	= 0,
+		.max_speed_hz	= 15 * 1000 * 1000,
+		.bus_num	= 0,
+	},
+#endif
+#endif
+};
+
+
+/*
+ * MACB Ethernet device
+ */
+static struct at91_eth_data __initdata ek_macb_data = {
+	.phy_irq_pin	= AT91_PIN_PA7,
+	.is_rmii	= 1,
+};
+
+static void __init ek_add_device_macb(void)
+{
+	if (ek_have_2mmc())
+		ek_macb_data.phy_irq_pin = AT91_PIN_PB0;
+
+	at91_add_device_eth(&ek_macb_data);
+}
+
+/*
+ * NAND flash
+ */
+static struct mtd_partition __initdata ek_nand_partition[] = {
+	{
+		.name   = "Bootstrap",
+		.offset = 0,
+		.size   = 4 * SZ_1M,
+	},
+	{
+		.name	= "Partition 1",
+		.offset	= MTDPART_OFS_NXTBLK,
+		.size	= 60 * SZ_1M,
+	},
+	{
+		.name	= "Partition 2",
+		.offset	= MTDPART_OFS_NXTBLK,
+		.size	= MTDPART_SIZ_FULL,
+	},
+};
+
+static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
+{
+	*num_partitions = ARRAY_SIZE(ek_nand_partition);
+	return ek_nand_partition;
+}
+
+/* det_pin is not connected */
+static struct atmel_nand_data __initdata ek_nand_data = {
+	.ale		= 21,
+	.cle		= 22,
+	.rdy_pin	= AT91_PIN_PC13,
+	.enable_pin	= AT91_PIN_PC14,
+	.partition_info	= nand_partitions,
+};
+
+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)
+{
+	ek_nand_data.bus_width_16 = board_have_nand_16bit();
+	/* 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)
+ * wp_pin and vcc_pin are not connected
+ */
+#if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
+static struct mci_platform_data __initdata ek_mmc_data = {
+	.slot[1] = {
+		.bus_width	= 4,
+		.detect_pin	= AT91_PIN_PC9,
+	},
+
+};
+#else
+static struct at91_mmc_data __initdata ek_mmc_data = {
+	.slot_b		= 1,	/* Only one slot so use slot B */
+	.wire4		= 1,
+	.det_pin	= AT91_PIN_PC9,
+};
+#endif
+
+static void __init ek_add_device_mmc(void)
+{
+#if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
+	if (ek_have_2mmc()) {
+		ek_mmc_data.slot[0].bus_width = 4;
+		ek_mmc_data.slot[0].detect_pin = AT91_PIN_PC2;
+	}
+	at91_add_device_mci(0, &ek_mmc_data);
+#else
+	at91_add_device_mmc(0, &ek_mmc_data);
+#endif
+}
+
+/*
+ * LEDs
+ */
+static struct gpio_led ek_leds[] = {
+	{	/* "bottom" led, green, userled1 to be defined */
+		.name			= "ds5",
+		.gpio			= AT91_PIN_PA6,
+		.active_low		= 1,
+		.default_trigger	= "none",
+	},
+	{	/* "power" led, yellow */
+		.name			= "ds1",
+		.gpio			= AT91_PIN_PA9,
+		.default_trigger	= "heartbeat",
+	}
+};
+
+static void __init ek_add_device_gpio_leds(void)
+{
+	if (ek_have_2mmc()) {
+		ek_leds[0].gpio = AT91_PIN_PB8;
+		ek_leds[1].gpio = AT91_PIN_PB9;
+	}
+
+	at91_gpio_leds(ek_leds, ARRAY_SIZE(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
+
+#if defined(CONFIG_REGULATOR_FIXED_VOLTAGE) || defined(CONFIG_REGULATOR_FIXED_VOLTAGE_MODULE)
+static struct regulator_consumer_supply ek_audio_consumer_supplies[] = {
+	REGULATOR_SUPPLY("AVDD", "0-001b"),
+	REGULATOR_SUPPLY("HPVDD", "0-001b"),
+	REGULATOR_SUPPLY("DBVDD", "0-001b"),
+	REGULATOR_SUPPLY("DCVDD", "0-001b"),
+};
+
+static struct regulator_init_data ek_avdd_reg_init_data = {
+	.constraints	= {
+		.name	= "3V3",
+		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
+	},
+	.consumer_supplies = ek_audio_consumer_supplies,
+	.num_consumer_supplies = ARRAY_SIZE(ek_audio_consumer_supplies),
+};
+
+static struct fixed_voltage_config ek_vdd_pdata = {
+	.supply_name	= "board-3V3",
+	.microvolts	= 3300000,
+	.gpio		= -EINVAL,
+	.enabled_at_boot = 0,
+	.init_data	= &ek_avdd_reg_init_data,
+};
+static struct platform_device ek_voltage_regulator = {
+	.name		= "reg-fixed-voltage",
+	.id		= -1,
+	.num_resources	= 0,
+	.dev		= {
+		.platform_data	= &ek_vdd_pdata,
+	},
+};
+static void __init ek_add_regulators(void)
+{
+	platform_device_register(&ek_voltage_regulator);
+}
+#else
+static void __init ek_add_regulators(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 */
+	at91_add_device_serial();
+	/* USB Host */
+	at91_add_device_usbh(&ek_usbh_data);
+	/* USB Device */
+	at91_add_device_udc(&ek_udc_data);
+	/* SPI */
+	at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
+	/* NAND */
+	ek_add_device_nand();
+	/* Ethernet */
+	ek_add_device_macb();
+	/* Regulators */
+	ek_add_regulators();
+	/* MMC */
+	ek_add_device_mmc();
+	/* I2C */
+	at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
+	/* LEDs */
+	ek_add_device_gpio_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")
+	/* Maintainer: Atmel */
+	.timer		= &at91sam926x_timer,
+	.map_io		= at91sam9260_map_io,
+	.init_early	= ek_init_early,
+	.init_irq	= ek_init_irq,
+	.init_machine	= ek_board_init,
+MACHINE_END
+
+MACHINE_START(AT91SAM9G20EK_2MMC, "Atmel AT91SAM9G20-EK 2 MMC Slot Mod")
+	/* Maintainer: Atmel */
+	.timer		= &at91sam926x_timer,
+	.map_io		= at91sam9260_map_io,
+	.init_early	= ek_init_early,
+	.init_irq	= ek_init_irq,
+	.init_machine	= ek_board_init,
+MACHINE_END