GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/arch/arm/include/asm/omap_gpio.h

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+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2009 Wind River Systems, Inc.
+ * Tom Rix <Tom.Rix@windriver.com>
+ *
+ * This work is derived from the linux 2.6.27 kernel source
+ * To fetch, use the kernel repository
+ * git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
+ * Use the v2.6.27 tag.
+ *
+ * Below is the original's header including its copyright
+ *
+ *  linux/arch/arm/plat-omap/gpio.c
+ *
+ * Support functions for OMAP GPIO
+ *
+ * Copyright (C) 2003-2005 Nokia Corporation
+ * Written by Juha Yrjölä <juha.yrjola@nokia.com>
+ */
+#ifndef _GPIO_H
+#define _GPIO_H
+
+#include <asm/arch/cpu.h>
+
+#ifdef CONFIG_DM_GPIO
+
+/* Information about a GPIO bank */
+struct omap_gpio_platdata {
+	int bank_index;
+	ulong base;	/* address of registers in physical memory */
+	const char *port_name;
+};
+
+#else
+
+struct gpio_bank {
+	void *base;
+};
+
+extern const struct gpio_bank *const omap_gpio_bank;
+
+/**
+ * Check if gpio is valid.
+ *
+ * @param gpio	GPIO number
+ * @return 1 if ok, 0 on error
+ */
+int gpio_is_valid(int gpio);
+#endif
+
+#endif /* _GPIO_H_ */