3 commits

Author	SHA1	Message	Date
Janne Grunau	e44d59c6ad	arm: apple: nvme: Add SART support and RTKit buffer management ... The NVMe firmware in the macOS 13 beta blocks or crashes with u-boot's current minimal RTKit implementation. It does not provide buffers for the firmware's buffer requests. The ANS2 firmware included in macOS 11 and 12 tolerates this. The firmware included in the first macOS 13 beta requires buffers for the crashlog and ioreport endpoints to function. In the case of the NVMe the buffers are physical memory. Access to physical memory is guarded by what Apple calls SART. Import m1n1's SART driver (exclusively used for the NVMe controller). Implement buffer management helpers for RTKit. These are generic since other devices (none in u-boot so far) require different handling. Signed-off-by: Janne Grunau <j@jannau.net> Reviewed-by: Mark Kettenis <kettenis@openbsd.org> Tested-by: Mark Kettenis <kettenis@openbsd.org>	2022-06-23 08:24:49 -04:00
Mark Kettenis	02e2588d3f	arm: apple: Add RTKit support ... 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 <kettenis@openbsd.org> Reviewed-by: Simon Glass <sjg@chromium.org> Tested on: Macbook Air M1 Tested-by: Simon Glass <sjg@chromium.org>	2022-02-10 16:44:23 -05:00
Mark Kettenis	a4bd5e4120	arm: apple: Change SoC name from "m1" into "apple" ... U-Boot is expected to support multiple generations of Apple SoCs in a single binary with a single defconfig. Therefore it makes more sense to set SYS_SOC to "apple". Signed-off-by: Mark Kettenis <kettenis@openbsd.org> Reviewed-by: Simon Glass <sjg@chromium.org>	2022-02-10 16:44:23 -05:00