2019-05-19 13:07:45 +01:00
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# SPDX-License-Identifier: GPL-2.0-only
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2019-12-17 15:33:41 +03:00
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menuconfig USB4
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tristate "Unified support for USB4 and Thunderbolt"
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2014-06-20 15:52:09 +02:00
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depends on PCI
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2016-11-18 09:22:59 +01:00
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select APPLE_PROPERTIES if EFI_STUB && X86
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2014-06-21 12:15:44 +02:00
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select CRC32
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2017-06-06 15:25:16 +03:00
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select CRYPTO
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select CRYPTO_HASH
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2017-06-06 15:25:17 +03:00
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select NVMEM
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2014-06-03 22:03:58 +02:00
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help
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2020-06-02 14:28:15 +02:00
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USB4 and Thunderbolt driver. USB4 is the public specification
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based on the Thunderbolt 3 protocol. This driver is required if
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2019-12-17 15:33:41 +03:00
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you want to hotplug Thunderbolt and USB4 compliant devices on
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Apple hardware or on PCs with Intel Falcon Ridge or newer.
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2014-06-03 22:03:58 +02:00
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To compile this driver a module, choose M here. The module will be
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called thunderbolt.
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2020-04-29 16:38:39 +03:00
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2020-08-24 13:55:52 +03:00
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if USB4
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2020-06-29 20:30:52 +03:00
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config USB4_DEBUGFS_WRITE
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bool "Enable write by debugfs to configuration spaces (DANGEROUS)"
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help
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Enables writing to device configuration registers through
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2024-04-23 14:23:23 +03:00
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debugfs interface. You can use tools such as Thunderbolt/USB4
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debugging tools to access these registers. For more
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information see:
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https://github.com/intel/tbtools
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2020-06-29 20:30:52 +03:00
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Only enable this if you know what you are doing! Never enable
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this for production systems or distro kernels.
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2022-02-22 19:31:47 +02:00
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config USB4_DEBUGFS_MARGINING
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bool "Expose receiver lane margining operations under USB4 ports (DANGEROUS)"
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depends on DEBUG_FS
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depends on USB4_DEBUGFS_WRITE
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help
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Enables hardware and software based receiver lane margining support
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under each USB4 port. Used for electrical quality and robustness
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validation during manufacturing. Should not be enabled by distro
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kernels.
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2020-04-29 16:38:39 +03:00
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config USB4_KUNIT_TEST
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2022-07-09 11:19:59 +08:00
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bool "KUnit tests" if !KUNIT_ALL_TESTS
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2022-08-10 19:40:56 -04:00
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depends on USB4 && KUNIT=y
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2022-07-09 11:19:59 +08:00
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default KUNIT_ALL_TESTS
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2020-08-24 13:55:52 +03:00
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2020-09-24 11:44:02 +03:00
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config USB4_DMA_TEST
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tristate "DMA traffic test driver"
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depends on DEBUG_FS
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help
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This allows sending and receiving DMA traffic through loopback
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connection. Loopback connection can be done by either special
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dongle that has TX/RX lines crossed, or by simply connecting a
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cable back to the host. Only enable this if you know what you
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are doing. Normal users and distro kernels should say N here.
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To compile this driver a module, choose M here. The module will be
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called thunderbolt_dma_test.
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2020-08-24 13:55:52 +03:00
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endif # USB4
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