diff options
| author | Brandon Breitenstein <brandon.breitenstein@intel.com> | 2020-12-14 13:52:24 -0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2021-01-22 14:28:08 +0000 |
| commit | 297d27b8bb628e40f93c283068cc68d033b9d162 (patch) | |
| tree | 79827308bd6be751566c26ac8a6aaddf0f4bbf24 /src/drivers/intel/usb4/retimer/retimer.h | |
| parent | 3a7db27f459ed6ff654e24e444310ca257459193 (diff) | |
drivers/intel/usb4: Enable retimer FW upgrade mux interaction
In order to update the BB retimers for usb4/tbt they need to be turned
on and into TBT mode. Expand the current DSM to allow for the use of an
EC RAM byte RFWU to get the current state of each port and whether or
not it has a retimer. It also allows Kernel to issue state transitions
for the retimer to be put into TBT mode for firmware update.
BUG=b:162528867
TEST=Along with work in progress kernel and EC patches, the Retimer
firmware update is verified under device attached and no device attached
scenarios.
Change-Id: I768cfb56790049c231173b0ea0f8e08fe6b64b93
Signed-off-by: Brandon Breitenstein <brandon.breitenstein@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48630
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Diffstat (limited to 'src/drivers/intel/usb4/retimer/retimer.h')
| -rw-r--r-- | src/drivers/intel/usb4/retimer/retimer.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/drivers/intel/usb4/retimer/retimer.h b/src/drivers/intel/usb4/retimer/retimer.h new file mode 100644 index 0000000000..4c4044a2fe --- /dev/null +++ b/src/drivers/intel/usb4/retimer/retimer.h @@ -0,0 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#ifndef _DRIVERS_INTEL_USB4_RETIMER_H_ +#define _DRIVERS_INTEL_USB4_RETIMER_H_ + +const char *ec_retimer_fw_update_path(void); +void ec_retimer_fw_update(void *arg); + +#endif /* _DRIVERS_INTEL_USB4_RETIMER_H_ */ |