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Mateusz Jończyk
5778b679dc
mc146818_get_cmos_time() is now mostly equivalent to mc146818_get_time() from drivers/rtc/rtc-mc146818-lib.c, with the latter using a more advanced algorithm (which checks the UIP bit in the CMOS). The Malta and Loongson2ef platforms, the only users of mc146818_get_cmos_time() have RTC devices that should be MC146818 compatible. So, rewrite mc146818_get_cmos_time() in a way that uses mc146818_get_time() and add CONFIG_RTC_MC146818_LIB as a dependency of CONFIG_MIPS_MALTA and CONFIG_CPU_LOONGSON2EF. The should be safe as: - malta_defconfig already uses a standard RTC CMOS driver (CONFIG_RTC_DRV_CMOS=y). The Malta board has an Intel 82371EB (PIIX4E) south bridge with the CMOS RTC, so should work correctly with the modification, - Loongson2e and 2f apparently use the VIA686B south bridge and the AMD CS5536 south bridge respectively (at least according to Kconfig). I have checked datasheets of both and these appear to be MC146818 software compatible. Signed-off-by: Mateusz Jończyk <mat.jonczyk@o2.pl> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.