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This driver handles the MTP ASC coprocessor, which does not need any
special handling on the RTKit side and communicates out-of-band.
Signed-off-by: Hector Martin <[email protected]>
Signed-off-by: Mark Kettenis <[email protected]>
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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 <[email protected]>
Reviewed-by: Mark Kettenis <[email protected]>
Tested-by: Mark Kettenis <[email protected]>
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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 <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Tested on: Macbook Air M1
Tested-by: Simon Glass <[email protected]>
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Add support for Apple's M1 SoC that is used in "Apple Silicon"
Macs. This builds a basic U-Boot that can be used as a payload
for the m1n1 boot loader being developed by the Asahi Linux
project.
Signed-off-by: Mark Kettenis <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
[trini: Add MAINTAINERS entry]
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