ARM: 6054/1: AT91: taskit PortuxG20 and Stamp9G20 board support

Both boards share the same board file, as the PortuxG20 is basically an
SBC based on the Stamp9G20.

Signed-off-by: Christian Glindkamp <christian.glindkamp@taskit.de>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 315 insertions, 0 deletions

diff --git a/arch/arm/mach-at91/board-stamp9g20.c b/arch/arm/mach-at91/board-stamp9g20.c
new file mode 100644
index 000000000000..87958274290f
--- /dev/null
+++ b/arch/arm/mach-at91/board-stamp9g20.c
@@ -0,0 +1,315 @@
+/*
+ *  Copyright (C) 2010 Christian Glindkamp <christian.glindkamp@taskit.de>
+ *                     taskit GmbH
+ *
+ * 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/mm.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/w1-gpio.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+
+#include <mach/board.h>
+#include <mach/at91sam9_smc.h>
+
+#include "sam9_smc.h"
+#include "generic.h"
+
+
+static void __init portuxg20_map_io(void)
+{
+        /* Initialize processor: 18.432 MHz crystal */
+        at91sam9260_initialize(18432000);
+
+        /* DGBU 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, CTS, RTS) */
+        at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
+
+        /* USART2 on ttyS3. (Rx, Tx, CTS, RTS) */
+        at91_register_uart(AT91SAM9260_ID_US2, 3, ATMEL_UART_CTS | ATMEL_UART_RTS);
+
+        /* USART4 on ttyS5. (Rx, Tx only) */
+        at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
+
+        /* USART5 on ttyS6. (Rx, Tx only) */
+        at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
+
+        /* set serial console to ttyS0 (ie, DBGU) */
+        at91_set_serial_console(0);
+}
+
+static void __init stamp9g20_map_io(void)
+{
+        /* Initialize processor: 18.432 MHz crystal */
+        at91sam9260_initialize(18432000);
+
+        /* DGBU 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);
+
+        /* set serial console to ttyS0 (ie, DBGU) */
+        at91_set_serial_console(0);
+}
+
+static void __init init_irq(void)
+{
+        at91sam9260_init_interrupts(NULL);
+}
+
+
+/*
+ * NAND flash
+ */
+static struct atmel_nand_data __initdata nand_data = {
+        .ale            = 21,
+        .cle            = 22,
+        .rdy_pin        = AT91_PIN_PC13,
+        .enable_pin     = AT91_PIN_PC14,
+        .bus_width_16   = 0,
+};
+
+static struct sam9_smc_config __initdata 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 | AT91_SMC_DBW_8,
+        .tdf_cycles             = 3,
+};
+
+static void __init add_device_nand(void)
+{
+        /* configure chip-select 3 (NAND) */
+        sam9_smc_configure(3, &nand_smc_config);
+
+        at91_add_device_nand(&nand_data);
+}
+
+
+/*
+ * MCI (SD/MMC)
+ * det_pin, wp_pin and vcc_pin are not connected
+ */
+#if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
+static struct mci_platform_data __initdata mmc_data = {
+        .slot[0] = {
+                .bus_width      = 4,
+        },
+};
+#else
+static struct at91_mmc_data __initdata mmc_data = {
+        .slot_b         = 0,
+        .wire4          = 1,
+};
+#endif
+
+
+/*
+ * USB Host port
+ */
+static struct at91_usbh_data __initdata usbh_data = {
+        .ports          = 2,
+};
+
+
+/*
+ * USB Device port
+ */
+static struct at91_udc_data __initdata portuxg20_udc_data = {
+        .vbus_pin       = AT91_PIN_PC7,
+        .pullup_pin     = 0,            /* pull-up driven by UDC */
+};
+
+static struct at91_udc_data __initdata stamp9g20_udc_data = {
+        .vbus_pin       = AT91_PIN_PA22,
+        .pullup_pin     = 0,            /* pull-up driven by UDC */
+};
+
+
+/*
+ * MACB Ethernet device
+ */
+static struct at91_eth_data __initdata macb_data = {
+        .phy_irq_pin    = AT91_PIN_PA28,
+        .is_rmii        = 1,
+};
+
+
+/*
+ * LEDs
+ */
+static struct gpio_led portuxg20_leds[] = {
+        {
+                .name                   = "LED2",
+                .gpio                   = AT91_PIN_PC5,
+                .default_trigger        = "none",
+        }, {
+                .name                   = "LED3",
+                .gpio                   = AT91_PIN_PC4,
+                .default_trigger        = "none",
+        }, {
+                .name                   = "LED4",
+                .gpio                   = AT91_PIN_PC10,
+                .default_trigger        = "heartbeat",
+        }
+};
+
+static struct gpio_led stamp9g20_leds[] = {
+        {
+                .name                   = "D8",
+                .gpio                   = AT91_PIN_PB18,
+                .active_low             = 1,
+                .default_trigger        = "none",
+        }, {
+                .name                   = "D9",
+                .gpio                   = AT91_PIN_PB19,
+                .active_low             = 1,
+                .default_trigger        = "none",
+        }, {
+                .name                   = "D10",
+                .gpio                   = AT91_PIN_PB20,
+                .active_low             = 1,
+                .default_trigger        = "heartbeat",
+        }
+};
+
+
+/*
+ * SPI devices
+ */
+static struct spi_board_info portuxg20_spi_devices[] = {
+        {
+                .modalias       = "spidev",
+                .chip_select    = 0,
+                .max_speed_hz   = 1 * 1000 * 1000,
+                .bus_num        = 0,
+        }, {
+                .modalias       = "spidev",
+                .chip_select    = 0,
+                .max_speed_hz   = 1 * 1000 * 1000,
+                .bus_num        = 1,
+        },
+};
+
+
+/*
+ * Dallas 1-Wire
+ */
+static struct w1_gpio_platform_data w1_gpio_pdata = {
+        .pin            = AT91_PIN_PA29,
+        .is_open_drain  = 1,
+};
+
+static struct platform_device w1_device = {
+        .name                   = "w1-gpio",
+        .id                     = -1,
+        .dev.platform_data      = &w1_gpio_pdata,
+};
+
+void add_w1(void)
+{
+        at91_set_GPIO_periph(w1_gpio_pdata.pin, 1);
+        at91_set_multi_drive(w1_gpio_pdata.pin, 1);
+        platform_device_register(&w1_device);
+}
+
+
+static void __init generic_board_init(void)
+{
+        /* Serial */
+        at91_add_device_serial();
+        /* NAND */
+        add_device_nand();
+        /* MMC */
+#if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
+        at91_add_device_mci(0, &mmc_data);
+#else
+        at91_add_device_mmc(0, &mmc_data);
+#endif
+        /* USB Host */
+        at91_add_device_usbh(&usbh_data);
+        /* Ethernet */
+        at91_add_device_eth(&macb_data);
+        /* I2C */
+        at91_add_device_i2c(NULL, 0);
+        /* W1 */
+        add_w1();
+}
+
+static void __init portuxg20_board_init(void)
+{
+        generic_board_init();
+        /* SPI */
+        at91_add_device_spi(portuxg20_spi_devices, ARRAY_SIZE(portuxg20_spi_devices));
+        /* USB Device */
+        at91_add_device_udc(&portuxg20_udc_data);
+        /* LEDs */
+        at91_gpio_leds(portuxg20_leds, ARRAY_SIZE(portuxg20_leds));
+}
+
+static void __init stamp9g20_board_init(void)
+{
+        generic_board_init();
+        /* USB Device */
+        at91_add_device_udc(&stamp9g20_udc_data);
+        /* LEDs */
+        at91_gpio_leds(stamp9g20_leds, ARRAY_SIZE(stamp9g20_leds));
+}
+
+MACHINE_START(PORTUXG20, "taskit PortuxG20")
+        /* Maintainer: taskit GmbH */
+        .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         = portuxg20_map_io,
+        .init_irq       = init_irq,
+        .init_machine   = portuxg20_board_init,
+MACHINE_END
+
+MACHINE_START(STAMP9G20, "taskit Stamp9G20")
+        /* Maintainer: taskit GmbH */
+        .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         = stamp9g20_map_io,
+        .init_irq       = init_irq,
+        .init_machine   = stamp9g20_board_init,
+MACHINE_END