Re: [RFC PATCH edk2-platforms 1/3] Silicon/NXP: add RTC support library for PCF8563 I2C IP

[Leif Lindholm <leif.lindholm@linaro.org>]

On Fri, Nov 03, 2017 at 10:16:52AM +0000, Ard Biesheuvel wrote:
> Add a RealTimeClockLib implementation for the NXP PCF8563 as used on
> the Socionext Developer Box board. Note that the standard I2C protocol
> stack does not support runtime use, so this driver invokes the I2C master
> protocol directly. This requires support from the platform side as well,
> and so this driver will only attach to a I2C master that has the
> gPcf8563RealTimeClockLibI2cMasterProtolGuid protocol installed on its
> handle. It is up to the platform to ensure that the driver producing
> the I2C master protocol in question is runtime capable, and is not
> shared with the I2C protocol stack (i.e., it should not have the I2C
> Bus Configuration Management protocol installed as well).
> 
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>

Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>

> ---
>  Silicon/NXP/Library/Pcf8563RealTimeClockLib/Pcf8563RealTimeClockLib.c   | 385 ++++++++++++++++++++
>  Silicon/NXP/Library/Pcf8563RealTimeClockLib/Pcf8563RealTimeClockLib.dec |  29 ++
>  Silicon/NXP/Library/Pcf8563RealTimeClockLib/Pcf8563RealTimeClockLib.inf |  52 +++
>  3 files changed, 466 insertions(+)