1 files changed, 210 insertions, 0 deletions

diff --git a/arch/arm/mach-mx3/mx31lite-db.c b/arch/arm/mach-mx3/mx31lite-db.c
new file mode 100644
index 000000000000..093c595ca581
--- /dev/null
+++ b/arch/arm/mach-mx3/mx31lite-db.c
@@ -0,0 +1,210 @@
+/*
+ *  LogicPD i.MX31 SOM-LV development board support
+ *
+ *    Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
+ *
+ *  based on code for other MX31 boards,
+ *
+ *    Copyright 2005-2007 Freescale Semiconductor
+ *    Copyright (c) 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
+ *    Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group
+ *
+ * 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/kernel.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/gpio.h>
+#include <linux/leds.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include <mach/hardware.h>
+#include <mach/common.h>
+#include <mach/imx-uart.h>
+#include <mach/iomux-mx3.h>
+#include <mach/board-mx31lite.h>
+#include <mach/mmc.h>
+#include <mach/spi.h>
+
+#include "devices.h"
+
+/*
+ * This file contains board-specific initialization routines for the
+ * LogicPD i.MX31 SOM-LV development board, aka 'LiteKit'.
+ * If you design an own baseboard for the module, use this file as base
+ * for support code.
+ */
+
+static unsigned int litekit_db_board_pins[] __initdata = {
+        /* UART1 */
+        MX31_PIN_CTS1__CTS1,
+        MX31_PIN_RTS1__RTS1,
+        MX31_PIN_TXD1__TXD1,
+        MX31_PIN_RXD1__RXD1,
+        /* SPI 0 */
+        MX31_PIN_CSPI1_SCLK__SCLK,
+        MX31_PIN_CSPI1_MOSI__MOSI,
+        MX31_PIN_CSPI1_MISO__MISO,
+        MX31_PIN_CSPI1_SPI_RDY__SPI_RDY,
+        MX31_PIN_CSPI1_SS0__SS0,
+        MX31_PIN_CSPI1_SS1__SS1,
+        MX31_PIN_CSPI1_SS2__SS2,
+        /* SDHC1 */
+        MX31_PIN_SD1_DATA0__SD1_DATA0,
+        MX31_PIN_SD1_DATA1__SD1_DATA1,
+        MX31_PIN_SD1_DATA2__SD1_DATA2,
+        MX31_PIN_SD1_DATA3__SD1_DATA3,
+        MX31_PIN_SD1_CLK__SD1_CLK,
+        MX31_PIN_SD1_CMD__SD1_CMD,
+};
+
+/* UART */
+static struct imxuart_platform_data uart_pdata __initdata = {
+        .flags = IMXUART_HAVE_RTSCTS,
+};
+
+/* MMC */
+
+static int gpio_det, gpio_wp;
+
+#define MMC_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
+                     PAD_CTL_ODE_CMOS)
+
+static int mxc_mmc1_get_ro(struct device *dev)
+{
+        return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_GPIO1_6));
+}
+
+static int mxc_mmc1_init(struct device *dev,
+                         irq_handler_t detect_irq, void *data)
+{
+        int ret;
+
+        gpio_det = IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1);
+        gpio_wp = IOMUX_TO_GPIO(MX31_PIN_GPIO1_6);
+
+        mxc_iomux_set_pad(MX31_PIN_SD1_DATA0,
+                          MMC_PAD_CFG | PAD_CTL_PUE_PUD | PAD_CTL_100K_PU);
+        mxc_iomux_set_pad(MX31_PIN_SD1_DATA1,
+                          MMC_PAD_CFG | PAD_CTL_PUE_PUD | PAD_CTL_100K_PU);
+        mxc_iomux_set_pad(MX31_PIN_SD1_DATA2,
+                          MMC_PAD_CFG | PAD_CTL_PUE_PUD | PAD_CTL_100K_PU);
+        mxc_iomux_set_pad(MX31_PIN_SD1_DATA3,
+                          MMC_PAD_CFG | PAD_CTL_PUE_PUD | PAD_CTL_100K_PU);
+        mxc_iomux_set_pad(MX31_PIN_SD1_CMD,
+                          MMC_PAD_CFG | PAD_CTL_PUE_PUD | PAD_CTL_100K_PU);
+        mxc_iomux_set_pad(MX31_PIN_SD1_CLK, MMC_PAD_CFG);
+
+        ret = gpio_request(gpio_det, "MMC detect");
+        if (ret)
+                return ret;
+
+        ret = gpio_request(gpio_wp, "MMC w/p");
+        if (ret)
+                goto exit_free_det;
+
+        gpio_direction_input(gpio_det);
+        gpio_direction_input(gpio_wp);
+
+        ret = request_irq(IOMUX_TO_IRQ(MX31_PIN_DCD_DCE1), detect_irq,
+                          IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+                          "MMC detect", data);
+        if (ret)
+                goto exit_free_wp;
+
+        return 0;
+
+exit_free_wp:
+        gpio_free(gpio_wp);
+
+exit_free_det:
+        gpio_free(gpio_det);
+
+        return ret;
+}
+
+static void mxc_mmc1_exit(struct device *dev, void *data)
+{
+        gpio_free(gpio_det);
+        gpio_free(gpio_wp);
+        free_irq(IOMUX_TO_IRQ(MX31_PIN_DCD_DCE1), data);
+}
+
+static struct imxmmc_platform_data mmc_pdata = {
+        .get_ro  = mxc_mmc1_get_ro,
+        .init      = mxc_mmc1_init,
+        .exit      = mxc_mmc1_exit,
+};
+
+/* SPI */
+
+static int spi_internal_chipselect[] = {
+        MXC_SPI_CS(0),
+        MXC_SPI_CS(1),
+        MXC_SPI_CS(2),
+};
+
+static struct spi_imx_master spi0_pdata = {
+        .chipselect     = spi_internal_chipselect,
+        .num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
+};
+
+/* GPIO LEDs */
+
+static struct gpio_led litekit_leds[] = {
+        {
+                .name           = "GPIO0",
+                .gpio           = IOMUX_TO_GPIO(MX31_PIN_COMPARE),
+                .active_low     = 1,
+                .default_state  = LEDS_GPIO_DEFSTATE_OFF,
+        },
+        {
+                .name           = "GPIO1",
+                .gpio           = IOMUX_TO_GPIO(MX31_PIN_CAPTURE),
+                .active_low     = 1,
+                .default_state  = LEDS_GPIO_DEFSTATE_OFF,
+        }
+};
+
+static struct gpio_led_platform_data litekit_led_platform_data = {
+        .leds           = litekit_leds,
+        .num_leds       = ARRAY_SIZE(litekit_leds),
+};
+
+static struct platform_device litekit_led_device = {
+        .name   = "leds-gpio",
+        .id     = -1,
+        .dev    = {
+                .platform_data = &litekit_led_platform_data,
+        },
+};
+
+void __init mx31lite_db_init(void)
+{
+        mxc_iomux_setup_multiple_pins(litekit_db_board_pins,
+                                        ARRAY_SIZE(litekit_db_board_pins),
+                                        "development board pins");
+        mxc_register_device(&mxc_uart_device0, &uart_pdata);
+        mxc_register_device(&mxcsdhc_device0, &mmc_pdata);
+        mxc_register_device(&mxc_spi_device0, &spi0_pdata);
+        platform_device_register(&litekit_led_device);
+        mxc_register_device(&imx_wdt_device0, NULL);
+}
+