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+/*
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+ * Copyright (C) 2005 SAN People
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+ * Copyright (C) 2008 Atmel
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+ * Copyright (C) 2009 Rob Emanuele
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation; either version 2 of the License, or
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+ * (at your option) any later version.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program; if not, write to the Free Software
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+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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+ */
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+
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+#include <linux/types.h>
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+#include <linux/init.h>
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+#include <linux/mm.h>
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+#include <linux/module.h>
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+#include <linux/platform_device.h>
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+#include <linux/spi/spi.h>
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+#include <linux/spi/at73c213.h>
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+#include <linux/clk.h>
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+
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+#include <mach/hardware.h>
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+#include <asm/setup.h>
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+#include <asm/mach-types.h>
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+#include <asm/irq.h>
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+
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+#include <asm/mach/arch.h>
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+#include <asm/mach/map.h>
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+#include <asm/mach/irq.h>
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+
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+#include <mach/board.h>
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+#include <mach/gpio.h>
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+#include <mach/at91sam9_smc.h>
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+
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+#include "sam9_smc.h"
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+#include "generic.h"
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+
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+
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+static void __init ek_map_io(void)
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+{
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+ /* Initialize processor: 18.432 MHz crystal */
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+ at91sam9260_initialize(18432000);
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+
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+ /* DGBU on ttyS0. (Rx & Tx only) */
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+ at91_register_uart(0, 0, 0);
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+
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+ /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
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+ at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
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+ | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
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+ | ATMEL_UART_RI);
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+
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+ /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
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+ at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
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+
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+ /* set serial console to ttyS0 (ie, DBGU) */
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+ at91_set_serial_console(0);
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+}
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+
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+static void __init ek_init_irq(void)
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+{
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+ at91sam9260_init_interrupts(NULL);
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+}
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+
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+
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+/*
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+ * USB Host port
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+ */
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+static struct at91_usbh_data __initdata ek_usbh_data = {
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+ .ports = 2,
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+};
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+
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+/*
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+ * USB Device port
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+ */
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+static struct at91_udc_data __initdata ek_udc_data = {
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+ .vbus_pin = AT91_PIN_PC5,
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+ .pullup_pin = 0, /* pull-up driven by UDC */
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+};
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+
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+
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+/*
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+ * SPI devices.
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+ */
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+static struct spi_board_info ek_spi_devices[] = {
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+#if !defined(CONFIG_MMC_ATMELMCI)
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+ { /* DataFlash chip */
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+ .modalias = "mtd_dataflash",
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+ .chip_select = 1,
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+ .max_speed_hz = 15 * 1000 * 1000,
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+ .bus_num = 0,
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+ },
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+#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
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+ { /* DataFlash card */
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+ .modalias = "mtd_dataflash",
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+ .chip_select = 0,
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+ .max_speed_hz = 15 * 1000 * 1000,
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+ .bus_num = 0,
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+ },
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+#endif
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+#endif
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+};
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+
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+
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+/*
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+ * MACB Ethernet device
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+ */
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+static struct at91_eth_data __initdata ek_macb_data = {
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+ .phy_irq_pin = AT91_PIN_PC12,
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+ .is_rmii = 1,
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+};
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+
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+
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+/*
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+ * NAND flash
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+ */
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+static struct mtd_partition __initdata ek_nand_partition[] = {
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+ {
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+ .name = "Bootstrap",
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+ .offset = 0,
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+ .size = 4 * SZ_1M,
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+ },
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+ {
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+ .name = "Partition 1",
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+ .offset = MTDPART_OFS_NXTBLK,
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+ .size = 60 * SZ_1M,
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+ },
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+ {
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+ .name = "Partition 2",
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+ .offset = MTDPART_OFS_NXTBLK,
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+ .size = MTDPART_SIZ_FULL,
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+ },
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+};
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+
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+static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
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+{
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+ *num_partitions = ARRAY_SIZE(ek_nand_partition);
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+ return ek_nand_partition;
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+}
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+
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+/* det_pin is not connected */
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+static struct atmel_nand_data __initdata ek_nand_data = {
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+ .ale = 21,
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+ .cle = 22,
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+ .rdy_pin = AT91_PIN_PC13,
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+ .enable_pin = AT91_PIN_PC14,
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+ .partition_info = nand_partitions,
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+#if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
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+ .bus_width_16 = 1,
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+#else
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+ .bus_width_16 = 0,
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+#endif
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+};
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+
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+static struct sam9_smc_config __initdata ek_nand_smc_config = {
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+ .ncs_read_setup = 0,
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+ .nrd_setup = 2,
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+ .ncs_write_setup = 0,
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+ .nwe_setup = 2,
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+
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+ .ncs_read_pulse = 4,
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+ .nrd_pulse = 4,
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+ .ncs_write_pulse = 4,
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+ .nwe_pulse = 4,
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+
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+ .read_cycle = 7,
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+ .write_cycle = 7,
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+
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+ .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
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+ .tdf_cycles = 3,
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+};
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+
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+static void __init ek_add_device_nand(void)
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+{
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+ /* setup bus-width (8 or 16) */
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+ if (ek_nand_data.bus_width_16)
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+ ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
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+ else
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+ ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
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+
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+ /* configure chip-select 3 (NAND) */
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+ sam9_smc_configure(3, &ek_nand_smc_config);
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+
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+ at91_add_device_nand(&ek_nand_data);
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+}
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+
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+
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+/*
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+ * MCI (SD/MMC)
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+ * det_pin and wp_pin are not connected
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+ */
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+#if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
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+static struct mci_platform_data __initdata ek_mmc_data = {
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+ .slot[0] = {
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+ .bus_width = 4,
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+ .detect_pin = -ENODEV,
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+ .wp_pin = -ENODEV,
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+ },
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+ .slot[1] = {
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+ .bus_width = 4,
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+ .detect_pin = -ENODEV,
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+ .wp_pin = -ENODEV,
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+ },
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+
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+};
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+#else
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+static struct amci_platform_data __initdata ek_mmc_data = {
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+};
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+#endif
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+
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+/*
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+ * LEDs
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+ */
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+static struct gpio_led ek_leds[] = {
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+ { /* "bottom" led, green, userled1 to be defined */
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+ .name = "ds5",
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+ .gpio = AT91_PIN_PB12,
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+ .active_low = 1,
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+ .default_trigger = "none",
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+ },
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+ { /* "power" led, yellow */
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+ .name = "ds1",
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+ .gpio = AT91_PIN_PB13,
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+ .default_trigger = "heartbeat",
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+ }
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+};
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+
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+static struct i2c_board_info __initdata ek_i2c_devices[] = {
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+ {
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+ I2C_BOARD_INFO("24c512", 0x50),
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+ },
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+};
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+
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+
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+static void __init ek_board_init(void)
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+{
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+ /* Serial */
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+ at91_add_device_serial();
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+ /* USB Host */
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+ at91_add_device_usbh(&ek_usbh_data);
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+ /* USB Device */
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+ at91_add_device_udc(&ek_udc_data);
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+ /* SPI */
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+ at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
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+ /* NAND */
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+ ek_add_device_nand();
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+ /* Ethernet */
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+ at91_add_device_eth(&ek_macb_data);
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+ /* MMC */
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+ at91_add_device_mci(0, &ek_mmc_data);
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+ /* I2C */
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+ at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
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+ /* LEDs */
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+ at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
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+ /* PCK0 provides MCLK to the WM8731 */
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+ at91_set_B_periph(AT91_PIN_PC1, 0);
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+ /* SSC (for WM8731) */
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+ at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX);
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+}
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+
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+MACHINE_START(AT91SAM9G20EK_2MMC, "Atmel AT91SAM9G20-EK 2 MMC Slot Mod")
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+ /* Maintainer: Rob Emanuele */
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+ .phys_io = AT91_BASE_SYS,
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+ .io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
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+ .boot_params = AT91_SDRAM_BASE + 0x100,
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+ .timer = &at91sam926x_timer,
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+ .map_io = ek_map_io,
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+ .init_irq = ek_init_irq,
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+ .init_machine = ek_board_init,
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+MACHINE_END
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Rob Emanuele