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* rtc: Move RTC function prototypes to their own headerPeter Maydell2022-01-281-1/+1
| | | | | | | | | | | | | | | | | softmmu/rtc.c defines two public functions: qemu_get_timedate() and qemu_timedate_diff(). Currently we keep the prototypes for these in qemu-common.h, but most files don't need them. Move them to their own header, a new include/sysemu/rtc.h. Since the C files using these two functions did not need to include qemu-common.h for any other reason, we can remove those include lines when we add the include of the new rtc.h. The license for the .h file follows that of the softmmu/rtc.c where both the functions are defined. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
* hw/arm/allwinner: add RTC device supportNiek Linnenbank2020-03-121-0/+411
Allwinner System-on-Chips usually contain a Real Time Clock (RTC) for non-volatile system date and time keeping. This commit adds a generic Allwinner RTC device that supports the RTC devices found in Allwinner SoC family sun4i (A10), sun7i (A20) and sun6i and newer (A31, H2+, H3, etc). The following RTC functionality and features are implemented: * Year-Month-Day read/write * Hour-Minute-Second read/write * General Purpose storage The following boards are extended with the RTC device: * Cubieboard (hw/arm/cubieboard.c) * Orange Pi PC (hw/arm/orangepi.c) Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 20200311221854.30370-13-nieklinnenbank@gmail.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>