Commit a85e4c52 authored Feb 08, 2022 by Jae Hyun Yoo Committed by Greg Kroah-Hartman Feb 09, 2022

peci: Add peci-aspeed controller driver



ASPEED AST24xx/AST25xx/AST26xx SoCs support the PECI electrical
interface (a.k.a PECI wire) that provides a communication channel with
Intel processors.
This driver allows BMC to discover devices connected to it and
communicate with them using PECI protocol.

Co-developed-by: Iwona Winiarska <iwona.winiarska@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Acked-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com>
Link: https://lore.kernel.org/r/20220208153639.255278-6-iwona.winiarska@intel.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 6523d3b2

MAINTAINERS

+8 −0

Original line number	Diff line number	Diff line
		@@ -2986,6 +2986,14 @@ S: Maintained
		F: Documentation/devicetree/bindings/net/asix,ax88796c.yaml
		F: drivers/net/ethernet/asix/ax88796c_*

		ASPEED PECI CONTROLLER
		M: Iwona Winiarska <iwona.winiarska@intel.com>
		L: linux-aspeed@lists.ozlabs.org (moderated for non-subscribers)
		L: openbmc@lists.ozlabs.org (moderated for non-subscribers)
		S: Supported
		F: Documentation/devicetree/bindings/peci/peci-aspeed.yaml
		F: drivers/peci/controller/peci-aspeed.c

		ASPEED PINCTRL DRIVERS
		M: Andrew Jeffery <andrew@aj.id.au>
		L: linux-aspeed@lists.ozlabs.org (moderated for non-subscribers)

drivers/peci/Kconfig

+6 −0

Original line number	Diff line number	Diff line
		@@ -13,3 +13,9 @@ menuconfig PECI

		This support is also available as a module. If so, the module
		will be called peci.

		if PECI

		source "drivers/peci/controller/Kconfig"

		endif # PECI

drivers/peci/Makefile

+3 −0

Original line number	Diff line number	Diff line
		@@ -3,3 +3,6 @@
		# Core functionality
		peci-y := core.o
		obj-$(CONFIG_PECI) += peci.o

		# Hardware specific bus drivers
		obj-y += controller/

drivers/peci/controller/Kconfig

0 → 100644

+18 −0

Original line number	Diff line number	Diff line
		# SPDX-License-Identifier: GPL-2.0-only

		config PECI_ASPEED
		tristate "ASPEED PECI support"
		depends on ARCH_ASPEED \|\| COMPILE_TEST
		depends on OF
		depends on HAS_IOMEM
		depends on COMMON_CLK
		help
		This option enables PECI controller driver for ASPEED AST2400,
		AST2500 and AST2600 SoCs. It allows BMC to discover devices
		connected to it, and communicate with them using PECI protocol.

		Say Y here if your system runs on ASPEED SoC and you are using it
		as BMC for Intel platform.

		This driver can also be built as a module. If so, the module will
		be called peci-aspeed.

drivers/peci/controller/Makefile

0 → 100644

+3 −0

Original line number	Diff line number	Diff line
		# SPDX-License-Identifier: GPL-2.0-only

		obj-$(CONFIG_PECI_ASPEED) += peci-aspeed.o