mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-12 05:24:12 +08:00
c0b34bed0b
The I2CR has the capability to directly perform SCOM operations, circumventing the need to drive the FSI2PIB engine. Add a new driver to perform SCOM operations through the I2CR. Signed-off-by: Eddie James <eajames@linux.ibm.com> Link: https://lore.kernel.org/r/20230612195657.245125-15-eajames@linux.ibm.com Signed-off-by: Joel Stanley <joel@jms.id.au>
106 lines
3.2 KiB
Plaintext
106 lines
3.2 KiB
Plaintext
# 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_MASTER_ASPEED
|
|
tristate "FSI ASPEED master"
|
|
depends on HAS_IOMEM
|
|
help
|
|
This option enables a FSI master that is present behind an OPB bridge
|
|
in the AST2600.
|
|
|
|
Enable it for your BMC kernel in an OpenPower or IBM Power system.
|
|
|
|
config FSI_MASTER_I2CR
|
|
tristate "IBM I2C Responder virtual FSI master"
|
|
depends on I2C
|
|
help
|
|
This option enables a virtual FSI master in order to access a CFAM
|
|
behind an IBM I2C Responder (I2CR) chip. The I2CR is an I2C device
|
|
that translates I2C commands to CFAM or SCOM operations, effectively
|
|
implementing an FSI master and bus.
|
|
|
|
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.
|
|
|
|
config I2CR_SCOM
|
|
tristate "IBM I2C Responder SCOM driver"
|
|
depends on FSI_MASTER_I2CR
|
|
help
|
|
This option enables an I2C Responder based SCOM device driver. The
|
|
I2CR has the capability to directly perform SCOM operations instead
|
|
of using the FSI2PIB engine.
|
|
|
|
endif
|