[ARM] 3961/2: AT91: Support for Atmel AT91SAM9261-EK board

This patch adds support for the Atmel AT91SAM9261-EK board.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 259 insertions, 0 deletions

diff --git a/arch/arm/mach-at91rm9200/board-sam9261ek.c b/arch/arm/mach-at91rm9200/board-sam9261ek.c
new file mode 100644
index 000000000000..30b490d8886b
--- /dev/null
+++ b/arch/arm/mach-at91rm9200/board-sam9261ek.c
@@ -0,0 +1,259 @@
+/*
+ * linux/arch/arm/mach-at91rm9200/board-ek.c
+ *
+ *  Copyright (C) 2005 SAN People
+ *  Copyright (C) 2006 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/dm9000.h>
+
+#include <asm/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 <asm/arch/board.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/at91sam926x_mc.h>
+
+#include "generic.h"
+
+
+/*
+ * Serial port configuration.
+ *    0 .. 2 = USART0 .. USART2
+ *    3      = DBGU
+ */
+static struct at91_uart_config __initdata ek_uart_config = {
+        .console_tty    = 0,                            /* ttyS0 */
+        .nr_tty         = 1,
+        .tty_map        = { 3, -1, -1, -1 }             /* ttyS0, ..., ttyS3 */
+};
+
+static void __init ek_map_io(void)
+{
+        /* Initialize processor: 18.432 MHz crystal */
+        at91sam9261_initialize(18432000);
+
+        /* Setup the serial ports and console */
+        at91_init_serial(&ek_uart_config);
+}
+
+static void __init ek_init_irq(void)
+{
+        at91sam9261_init_interrupts(NULL);
+}
+
+
+/*
+ * DM9000 ethernet device
+ */
+#if defined(CONFIG_DM9000)
+static struct resource at91sam9261_dm9000_resource[] = {
+        [0] = {
+                .start  = AT91_CHIPSELECT_2,
+                .end    = AT91_CHIPSELECT_2 + 3,
+                .flags  = IORESOURCE_MEM
+        },
+        [1] = {
+                .start  = AT91_CHIPSELECT_2 + 0x44,
+                .end    = AT91_CHIPSELECT_2 + 0xFF,
+                .flags  = IORESOURCE_MEM
+        },
+        [2] = {
+                .start  = AT91_PIN_PC11,
+                .end    = AT91_PIN_PC11,
+                .flags  = IORESOURCE_IRQ
+        }
+};
+
+static struct dm9000_plat_data dm9000_platdata = {
+        .flags          = DM9000_PLATF_16BITONLY,
+};
+
+static struct platform_device at91sam9261_dm9000_device = {
+        .name           = "dm9000",
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(at91sam9261_dm9000_resource),
+        .resource       = at91sam9261_dm9000_resource,
+        .dev            = {
+                .platform_data  = &dm9000_platdata,
+        }
+};
+
+static void __init ek_add_device_dm9000(void)
+{
+        /*
+         * Configure Chip-Select 2 on SMC for the DM9000.
+         * Note: These timings were calculated for MASTER_CLOCK = 100000000
+         *  according to the DM9000 timings.
+         */
+        at91_sys_write(AT91_SMC_SETUP(2), AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(0) | AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(0));
+        at91_sys_write(AT91_SMC_PULSE(2), AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(8) | AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(8));
+        at91_sys_write(AT91_SMC_CYCLE(2), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16));
+        at91_sys_write(AT91_SMC_MODE(2), AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16 | AT91_SMC_TDF_(1));
+
+        /* Configure Reset signal as output */
+        at91_set_gpio_output(AT91_PIN_PC10, 0);
+
+        /* Configure Interrupt pin as input, no pull-up */
+        at91_set_gpio_input(AT91_PIN_PC11, 0);
+
+        platform_device_register(&at91sam9261_dm9000_device);
+}
+#else
+static void __init ek_add_device_dm9000(void) {}
+#endif /* CONFIG_DM9000 */
+
+
+/*
+ * 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_PB29,
+        .pullup_pin     = 0,            /* pull-up driven by UDC */
+};
+
+
+/*
+ * MCI (SD/MMC)
+ */
+static struct at91_mmc_data __initdata ek_mmc_data = {
+        .wire4          = 1,
+//      .det_pin        = ... not connected
+//      .wp_pin         = ... not connected
+//      .vcc_pin        = ... not connected
+};
+
+
+/*
+ * NAND flash
+ */
+static struct mtd_partition __initdata ek_nand_partition[] = {
+        {
+                .name   = "Partition 1",
+                .offset = 0,
+                .size   = 256 * 1024,
+        },
+        {
+                .name   = "Partition 2",
+                .offset = 256 * 1024 ,
+                .size   = MTDPART_SIZ_FULL,
+        },
+};
+
+static struct mtd_partition *nand_partitions(int size, int *num_partitions)
+{
+        *num_partitions = ARRAY_SIZE(ek_nand_partition);
+        return ek_nand_partition;
+}
+
+static struct at91_nand_data __initdata ek_nand_data = {
+        .ale            = 22,
+        .cle            = 21,
+//      .det_pin        = ... not connected
+        .rdy_pin        = AT91_PIN_PC15,
+        .enable_pin     = AT91_PIN_PC14,
+        .partition_info = nand_partitions,
+#if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
+        .bus_width_16   = 1,
+#else
+        .bus_width_16   = 0,
+#endif
+};
+
+/*
+ * SPI devices
+ */
+static struct spi_board_info ek_spi_devices[] = {
+        {       /* DataFlash chip */
+                .modalias       = "mtd_dataflash",
+                .chip_select    = 0,
+                .max_speed_hz   = 15 * 1000 * 1000,
+                .bus_num        = 0,
+        },
+#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
+        {       /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
+                .modalias       = "mtd_dataflash",
+                .chip_select    = 3,
+                .max_speed_hz   = 15 * 1000 * 1000,
+                .bus_num        = 0,
+        },
+#elif defined(CONFIG_SND_AT73C213)
+        {       /* AT73C213 DAC */
+                .modalias       = "snd_at73c213",
+                .chip_select    = 3,
+                .max_speed_hz   = 10 * 1000 * 1000,
+                .bus_num        = 0,
+        },
+#endif
+};
+
+
+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);
+        /* I2C */
+        at91_add_device_i2c();
+        /* NAND */
+        at91_add_device_nand(&ek_nand_data);
+        /* DM9000 ethernet */
+        ek_add_device_dm9000();
+
+        /* spi0 and mmc/sd share the same PIO pins */
+#if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
+        /* SPI */
+        at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
+#else
+        /* MMC */
+        at91_add_device_mmc(&ek_mmc_data);
+#endif
+}
+
+MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
+        /* Maintainer: Atmel */
+        .phys_io        = AT91_BASE_SYS,
+        .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
+        .boot_params    = AT91_SDRAM_BASE + 0x100,
+        .timer          = &at91sam926x_timer,
+        .map_io         = ek_map_io,
+        .init_irq       = ek_init_irq,
+        .init_machine   = ek_board_init,
+MACHINE_END