297d27b8bb
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> |
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| .. | ||
| dptf | ||
| fsp1_1 | ||
| fsp2_0 | ||
| gma | ||
| i210 | ||
| ish | ||
| mipi_camera | ||
| pmc_mux | ||
| ptt | ||
| soundwire | ||
| usb4/retimer | ||