Commit 5bd2927a authored by Sven Peter's avatar Sven Peter
Browse files

nvme-apple: Add initial Apple SoC NVMe driver 



Apple SoCs such as the M1 come with an embedded NVMe controller that
is not attached to any PCIe bus. Additionally, it doesn't conform
to the NVMe specification and requires a bunch of changes to command
submission and IOMMU configuration to work.

Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarSven Peter <sven@svenpeter.dev>
parent 82b96552

MAINTAINERS

+1 −0
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@@ -1849,6 +1849,7 @@ F: drivers/i2c/busses/i2c-pasemi-core.c 
F:	drivers/i2c/busses/i2c-pasemi-platform.c

F:	drivers/irqchip/irq-apple-aic.c

F:	drivers/mailbox/apple-mailbox.c

F:	drivers/nvme/host/apple.c

F:	drivers/pinctrl/pinctrl-apple-gpio.c

F:	drivers/soc/apple/*

F:	drivers/watchdog/apple_wdt.c

drivers/nvme/host/Kconfig

+13 −0
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@@ -91,3 +91,16 @@ config NVME_TCP 
	  from https://github.com/linux-nvme/nvme-cli.



	  If unsure, say N.



config NVME_APPLE

	tristate "Apple ANS2 NVM Express host driver"

	depends on OF && BLOCK

	depends on APPLE_RTKIT && APPLE_SART

	depends on ARCH_APPLE || COMPILE_TEST

	select NVME_CORE

	help

	  This provides support for the NVMe controller embedded in Apple SoCs

	  such as the M1.



	  To compile this driver as a module, choose M here: the

	  module will be called nvme-apple.

drivers/nvme/host/Makefile

+3 −0
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@@ -8,6 +8,7 @@ obj-$(CONFIG_NVME_FABRICS) += nvme-fabrics.o 
obj-$(CONFIG_NVME_RDMA)			+= nvme-rdma.o

obj-$(CONFIG_NVME_FC)			+= nvme-fc.o

obj-$(CONFIG_NVME_TCP)			+= nvme-tcp.o

obj-$(CONFIG_NVME_APPLE)		+= nvme-apple.o



nvme-core-y				:= core.o ioctl.o constants.o

nvme-core-$(CONFIG_TRACING)		+= trace.o
@@ -25,3 +26,5 @@ nvme-rdma-y += rdma.o 
nvme-fc-y				+= fc.o



nvme-tcp-y				+= tcp.o



nvme-apple-y				+= apple.o

drivers/nvme/host/apple.c

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