v4.19.13 snapshot.
diff --git a/arch/arm/mach-imx/mx31lite-db.c b/arch/arm/mach-imx/mx31lite-db.c
new file mode 100644
index 0000000..c66a006
--- /dev/null
+++ b/arch/arm/mach-imx/mx31lite-db.c
@@ -0,0 +1,163 @@
+/*
+ * 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.
+ */
+
+#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 "board-mx31lite.h"
+#include "common.h"
+#include "devices-imx31.h"
+#include "hardware.h"
+#include "iomux-mx3.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 = {
+ /* 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,
+};
+
+/* 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(gpio_to_irq(IOMUX_TO_GPIO(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(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1)), data);
+}
+
+static const struct imxmmc_platform_data mmc_pdata __initconst = {
+ .get_ro = mxc_mmc1_get_ro,
+ .init = mxc_mmc1_init,
+ .exit = mxc_mmc1_exit,
+};
+
+/* GPIO LEDs */
+
+static const struct gpio_led litekit_leds[] __initconst = {
+ {
+ .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 const struct gpio_led_platform_data
+ litekit_led_platform_data __initconst = {
+ .leds = litekit_leds,
+ .num_leds = ARRAY_SIZE(litekit_leds),
+};
+
+void __init mx31lite_db_init(void)
+{
+ mxc_iomux_setup_multiple_pins(litekit_db_board_pins,
+ ARRAY_SIZE(litekit_db_board_pins),
+ "development board pins");
+ imx31_add_mxc_mmc(0, &mmc_pdata);
+ gpio_led_register_device(-1, &litekit_led_platform_data);
+ imx31_add_imx2_wdt();
+ imx31_add_mxc_rtc();
+}