> From: Simon Glass <s...@chromium.org> > Date: Fri, 21 Jan 2022 18:40:14 -0700 > > Hi Mark, > > On Fri, 14 Jan 2022 at 04:05, Mark Kettenis <kette...@openbsd.org> wrote: > > > > Most Apple IOPs run a firmware that is based on what Apple calls > > RTKit. RTKit implements a common mailbox protocol. This code > > provides an implementation of the AP side of this protocol, > > providing a function to initialize RTKit-based firmwares as well > > as a function to do a clean shutdown of this firmware. > > > > Signed-off-by: Mark Kettenis <kette...@openbsd.org> > > --- > > arch/arm/include/asm/arch-apple/rtkit.h | 11 ++ > > arch/arm/mach-apple/Makefile | 1 + > > arch/arm/mach-apple/rtkit.c | 231 ++++++++++++++++++++++++ > > 3 files changed, 243 insertions(+) > > create mode 100644 arch/arm/include/asm/arch-apple/rtkit.h > > create mode 100644 arch/arm/mach-apple/rtkit.c > > This should be a driver.
This isn't a driver but just a bit of helper code that implements the RTKit protocol. It will be used by the Apple NVMe driver and a future SMC driver. The same approach is being taken in Linux. Since it is intended to be shared, I didn't put it in the NVMe driver itself.
