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-rw-r--r--arch/arm/mach-mx3/mx31lite-db.c198
1 files changed, 198 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..694611d6b057
--- /dev/null
+++ b/arch/arm/mach-mx3/mx31lite-db.c
@@ -0,0 +1,198 @@
+/*
+ * 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/platform_device.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,
+};
+
+/* 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 | PAD_CTL_100K_PU)
+
+static int mxc_mmc1_get_ro(struct device *dev)
+{
+ return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_LCS0));
+}
+
+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);
+ mxc_iomux_set_pad(MX31_PIN_SD1_DATA1, MMC_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_SD1_DATA2, MMC_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_SD1_DATA3, MMC_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_SD1_CLK, MMC_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_SD1_CMD, 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_DISABLED | 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_GPIO1_1), 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);
+}
+