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platform/x86: Add Silicom Platform Driver

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Add Silicom platform (silicom-platform) Linux driver for Swisscom
Business Box (Swisscom BB) as well as Cordoba family products.

This platform driver provides support for various functions via
the Linux LED framework, GPIO framework, Hardware Monitoring (HWMON)
and device attributes.

Signed-off-by: Henry Shi <henryshi2018@gmail.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20231124200334.5318-1-henryshi2018@gmail.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Henry Shi 2023-11-24 15:03:34 -05:00 committed by Hans de Goede
parent 3799b5d232
commit d9cd21d441
4 changed files with 1051 additions and 0 deletions
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29
Documentation/ABI/testing/sysfs-platform-silicom Normal file
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@ -0,0 +1,29 @@
What: /sys/devices/platform/silicom-platform/uc_version
Date: November 2023
KernelVersion: 6.7
Contact: Henry Shi <henrys@silicom-usa.com>
Description:
This file allows to read microcontroller firmware
version of current platform.
What: /sys/devices/platform/silicom-platform/power_cycle
Date: November 2023
KernelVersion: 6.7
Contact: Henry Shi <henrys@silicom-usa.com>
This file allow user to power cycle the platform.
Default value is 0; when set to 1, it powers down
the platform, waits 5 seconds, then powers on the
device. It returns to default value after power cycle.
0 - default value.
What: /sys/devices/platform/silicom-platform/efuse_status
Date: November 2023
KernelVersion: 6.7
Contact: Henry Shi <henrys@silicom-usa.com>
Description:
This file is read only. It returns the current
OTP status:
0 - not programmed.
1 - programmed.

15
drivers/platform/x86/Kconfig
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@ -1089,6 +1089,21 @@ config INTEL_SCU_IPC_UTIL
source "drivers/platform/x86/siemens/Kconfig"
config SILICOM_PLATFORM
tristate "Silicom Edge Networking device support"
depends on HWMON
depends on GPIOLIB
depends on LEDS_CLASS_MULTICOLOR
help
This option enables support for the LEDs/GPIO/etc downstream of the
embedded controller on Silicom "Cordoba" hardware and derivatives.
This platform driver provides support for various functions via
the Linux LED framework, GPIO framework, Hardware Monitoring (HWMON)
and device attributes.
If you have a Silicom network appliance, say Y or M here.
config WINMATE_FM07_KEYS
tristate "Winmate FM07/FM07P front-panel keys driver"
depends on INPUT

3
drivers/platform/x86/Makefile
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@ -136,6 +136,9 @@ obj-$(CONFIG_X86_INTEL_LPSS) += pmc_atom.o
# Siemens Simatic Industrial PCs
obj-$(CONFIG_SIEMENS_SIMATIC_IPC) += siemens/
# Silicom
obj-$(CONFIG_SILICOM_PLATFORM) += silicom-platform.o
# Winmate
obj-$(CONFIG_WINMATE_FM07_KEYS) += winmate-fm07-keys.o

1004
drivers/platform/x86/silicom-platform.c Normal file
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