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usr
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src
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linux-headers-5.4.0-215
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drivers
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fsi
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Kconfig
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# SPDX-License-Identifier: GPL-2.0-only # # FSI subsystem # menuconfig FSI tristate "FSI support" depends on OF select CRC4 ---help--- FSI - the FRU Support Interface - is a simple bus for low-level access to POWER-based hardware. if FSI config FSI_NEW_DEV_NODE bool "Create '/dev/fsi' directory for char devices" default n ---help--- This option causes char devices created for FSI devices to be located under a common /dev/fsi/ directory. Set to N unless your userspace has been updated to handle the new location. Additionally, it also causes the char device names to be offset by one so that chip 0 will have /dev/scom1 and chip1 /dev/scom2 to match old userspace expectations. New userspace will use udev rules to generate predictable access symlinks in /dev/fsi/by-path when this option is enabled. config FSI_MASTER_GPIO tristate "GPIO-based FSI master" depends on GPIOLIB select CRC4 ---help--- This option enables a FSI master driver using GPIO lines. config FSI_MASTER_HUB tristate "FSI hub master" ---help--- This option enables a FSI hub master driver. Hub is a type of FSI master that is connected to the upstream master via a slave. Hubs allow chaining of FSI links to an arbitrary depth. This allows for a high target device fanout. config FSI_MASTER_AST_CF tristate "FSI master based on Aspeed ColdFire coprocessor" depends on GPIOLIB depends on GPIO_ASPEED select GENERIC_ALLOCATOR ---help--- This option enables a FSI master using the AST2400 and AST2500 GPIO lines driven by the internal ColdFire coprocessor. This requires the corresponding machine specific ColdFire firmware to be available. config FSI_SCOM tristate "SCOM FSI client device driver" ---help--- This option enables an FSI based SCOM device driver. config FSI_SBEFIFO tristate "SBEFIFO FSI client device driver" depends on OF_ADDRESS ---help--- This option enables an FSI based SBEFIFO device driver. The SBEFIFO is a pipe-like FSI device for communicating with the self boot engine (SBE) on POWER processors. config FSI_OCC tristate "OCC SBEFIFO client device driver" depends on FSI_SBEFIFO ---help--- This option enables an SBEFIFO based On-Chip Controller (OCC) device driver. The OCC is a device embedded on a POWER processor that collects and aggregates sensor data from the processor and system. The OCC can provide the raw sensor data as well as perform thermal and power management on the system. endif