Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

1 files changed, 324 insertions, 0 deletions

diff --git a/roms/u-boot/include/rtc.h b/roms/u-boot/include/rtc.h
new file mode 100644
index 000000000..1efc0db3d
--- /dev/null
+++ b/roms/u-boot/include/rtc.h
@@ -0,0 +1,324 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * (C) Copyright 2001
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ */
+
+/*
+ * Generic RTC interface.
+ */
+#ifndef _RTC_H_
+#define _RTC_H_
+
+/* bcd<->bin functions are needed by almost all the RTC drivers, let's include
+ * it there instead of in evey single driver */
+
+#include <bcd.h>
+#include <rtc_def.h>
+
+#ifdef CONFIG_DM_RTC
+
+struct udevice;
+
+struct rtc_ops {
+	/**
+	 * get() - get the current time
+	 *
+	 * Returns the current time read from the RTC device. The driver
+	 * is responsible for setting up every field in the structure.
+	 *
+	 * @dev:	Device to read from
+	 * @time:	Place to put the time that is read
+	 */
+	int (*get)(struct udevice *dev, struct rtc_time *time);
+
+	/**
+	 * set() - set the current time
+	 *
+	 * Sets the time in the RTC device. The driver can expect every
+	 * field to be set correctly.
+	 *
+	 * @dev:	Device to read from
+	 * @time:	Time to write
+	 */
+	int (*set)(struct udevice *dev, const struct rtc_time *time);
+
+	/**
+	 * reset() - reset the RTC to a known-good state
+	 *
+	 * This function resets the RTC to a known-good state. The time may
+	 * be unset by this method, so should be set after this method is
+	 * called.
+	 *
+	 * @dev:	Device to read from
+	 * @return 0 if OK, -ve on error
+	 */
+	int (*reset)(struct udevice *dev);
+
+	/**
+	 * read() - Read multiple 8-bit registers
+	 *
+	 * @dev:	Device to read from
+	 * @reg:	First register to read
+	 * @buf:	Output buffer
+	 * @len:	Number of registers to read
+	 * @return 0 if OK, -ve on error
+	 */
+	int (*read)(struct udevice *dev, unsigned int reg,
+		    u8 *buf, unsigned int len);
+
+	/**
+	 * write() - Write multiple 8-bit registers
+	 *
+	 * @dev:	Device to write to
+	 * @reg:	First register to write
+	 * @buf:	Input buffer
+	 * @len:	Number of registers to write
+	 * @return 0 if OK, -ve on error
+	 */
+	int (*write)(struct udevice *dev, unsigned int reg,
+		     const u8 *buf, unsigned int len);
+
+	/**
+	 * read8() - Read an 8-bit register
+	 *
+	 * @dev:	Device to read from
+	 * @reg:	Register to read
+	 * @return value read, or -ve on error
+	 */
+	int (*read8)(struct udevice *dev, unsigned int reg);
+
+	/**
+	* write8() - Write an 8-bit register
+	*
+	* @dev:		Device to write to
+	* @reg:		Register to write
+	* @value:	Value to write
+	* @return 0 if OK, -ve on error
+	*/
+	int (*write8)(struct udevice *dev, unsigned int reg, int val);
+};
+
+/* Access the operations for an RTC device */
+#define rtc_get_ops(dev)	((struct rtc_ops *)(dev)->driver->ops)
+
+/**
+ * dm_rtc_get() - Read the time from an RTC
+ *
+ * @dev:	Device to read from
+ * @time:	Place to put the current time
+ * @return 0 if OK, -ve on error
+ */
+int dm_rtc_get(struct udevice *dev, struct rtc_time *time);
+
+/**
+ * dm_rtc_set() - Write a time to an RTC
+ *
+ * @dev:	Device to read from
+ * @time:	Time to write into the RTC
+ * @return 0 if OK, -ve on error
+ */
+int dm_rtc_set(struct udevice *dev, struct rtc_time *time);
+
+/**
+ * dm_rtc_reset() - reset the RTC to a known-good state
+ *
+ * If the RTC appears to be broken (e.g. it is not counting up in seconds)
+ * it may need to be reset to a known good state. This function achieves this.
+ * After resetting the RTC the time should then be set to a known value by
+ * the caller.
+ *
+ * @dev:	Device to read from
+ * @return 0 if OK, -ve on error
+ */
+int dm_rtc_reset(struct udevice *dev);
+
+/**
+ * dm_rtc_read() - Read multiple 8-bit registers
+ *
+ * @dev:	Device to read from
+ * @reg:	First register to read
+ * @buf:	Output buffer
+ * @len:	Number of registers to read
+ * @return 0 if OK, -ve on error
+ */
+int dm_rtc_read(struct udevice *dev, unsigned int reg, u8 *buf, unsigned int len);
+
+/**
+ * dm_rtc_write() - Write multiple 8-bit registers
+ *
+ * @dev:	Device to write to
+ * @reg:	First register to write
+ * @buf:	Input buffer
+ * @len:	Number of registers to write
+ * @return 0 if OK, -ve on error
+ */
+int dm_rtc_write(struct udevice *dev, unsigned int reg,
+		 const u8 *buf, unsigned int len);
+
+/**
+ * rtc_read8() - Read an 8-bit register
+ *
+ * @dev:	Device to read from
+ * @reg:	Register to read
+ * @return value read, or -ve on error
+ */
+int rtc_read8(struct udevice *dev, unsigned int reg);
+
+/**
+ * rtc_write8() - Write an 8-bit register
+ *
+ * @dev:	Device to write to
+ * @reg:	Register to write
+ * @value:	Value to write
+ * @return 0 if OK, -ve on error
+ */
+int rtc_write8(struct udevice *dev, unsigned int reg, int val);
+
+/**
+ * rtc_read16() - Read a 16-bit value from the RTC
+ *
+ * @dev:	Device to read from
+ * @reg:	Offset to start reading from
+ * @valuep:	Place to put the value that is read
+ * @return 0 if OK, -ve on error
+ */
+int rtc_read16(struct udevice *dev, unsigned int reg, u16 *valuep);
+
+/**
+ * rtc_write16() - Write a 16-bit value to the RTC
+ *
+ * @dev:	Device to write to
+ * @reg:	Register to start writing to
+ * @value:	Value to write
+ * @return 0 if OK, -ve on error
+ */
+int rtc_write16(struct udevice *dev, unsigned int reg, u16 value);
+
+/**
+ * rtc_read32() - Read a 32-bit value from the RTC
+ *
+ * @dev:	Device to read from
+ * @reg:	Offset to start reading from
+ * @valuep:	Place to put the value that is read
+ * @return 0 if OK, -ve on error
+ */
+int rtc_read32(struct udevice *dev, unsigned int reg, u32 *valuep);
+
+/**
+ * rtc_write32() - Write a 32-bit value to the RTC
+ *
+ * @dev:	Device to write to
+ * @reg:	Register to start writing to
+ * @value:	Value to write
+ * @return 0 if OK, -ve on error
+ */
+int rtc_write32(struct udevice *dev, unsigned int reg, u32 value);
+
+#ifdef CONFIG_RTC_ENABLE_32KHZ_OUTPUT
+int rtc_enable_32khz_output(int busnum, int chip_addr);
+#endif
+
+#else
+int rtc_get (struct rtc_time *);
+int rtc_set (struct rtc_time *);
+void rtc_reset (void);
+#ifdef CONFIG_RTC_ENABLE_32KHZ_OUTPUT
+void rtc_enable_32khz_output(void);
+#endif
+
+/**
+ * rtc_read8() - Read an 8-bit register
+ *
+ * @reg:	Register to read
+ * @return value read
+ */
+int rtc_read8(int reg);
+
+/**
+ * rtc_write8() - Write an 8-bit register
+ *
+ * @reg:	Register to write
+ * @value:	Value to write
+ */
+void rtc_write8(int reg, uchar val);
+
+/**
+ * rtc_read32() - Read a 32-bit value from the RTC
+ *
+ * @reg:	Offset to start reading from
+ * @return value read
+ */
+u32 rtc_read32(int reg);
+
+/**
+ * rtc_write32() - Write a 32-bit value to the RTC
+ *
+ * @reg:	Register to start writing to
+ * @value:	Value to write
+ */
+void rtc_write32(int reg, u32 value);
+
+/**
+ * rtc_init() - Set up the real time clock ready for use
+ */
+void rtc_init(void);
+#endif /* CONFIG_DM_RTC */
+
+/**
+ * is_leap_year - Check if year is a leap year
+ *
+ * @year	Year
+ * @return	1 if leap year
+ */
+static inline bool is_leap_year(unsigned int year)
+{
+	return (!(year % 4) && (year % 100)) || !(year % 400);
+}
+
+/**
+ * rtc_calc_weekday() - Work out the weekday from a time
+ *
+ * This only works for the Gregorian calendar - i.e. after 1752 (in the UK).
+ * It sets time->tm_wdaay to the correct day of the week.
+ *
+ * @time:	Time to inspect. tm_wday is updated
+ * @return 0 if OK, -EINVAL if the weekday could not be determined
+ */
+int rtc_calc_weekday(struct rtc_time *time);
+
+/**
+ * rtc_to_tm() - Convert a time_t value into a broken-out time
+ *
+ * The following fields are set up by this function:
+ *	tm_sec, tm_min, tm_hour, tm_mday, tm_mon, tm_year, tm_wday
+ *
+ * Note that tm_yday and tm_isdst are set to 0.
+ *
+ * @time_t:	Number of seconds since 1970-01-01 00:00:00
+ * @time:	Place to put the broken-out time
+ */
+void rtc_to_tm(u64 time_t, struct rtc_time *time);
+
+/**
+ * rtc_mktime() - Convert a broken-out time into a time_t value
+ *
+ * The following fields need to be valid for this function to work:
+ *	tm_sec, tm_min, tm_hour, tm_mday, tm_mon, tm_year
+ *
+ * Note that tm_wday and tm_yday are ignored.
+ *
+ * @time:	Broken-out time to convert
+ * @return corresponding time_t value, seconds since 1970-01-01 00:00:00
+ */
+unsigned long rtc_mktime(const struct rtc_time *time);
+
+/**
+ * rtc_month_days() - The number of days in the month
+ *
+ * @month:	month (January = 0)
+ * @year:	year (4 digits)
+ */
+int rtc_month_days(unsigned int month, unsigned int year);
+
+#endif	/* _RTC_H_ */