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authorNico Huber <nico.huber@secunet.com>2023-05-19 20:19:56 +0000
committerFelix Held <felix-coreboot@felixheld.de>2023-06-12 17:00:28 +0000
commitedcde0ba7a152c07f869d02de4a3c33720e5da9b (patch)
treec918593d6b4fea0705b0eabc1bcdbe2a292e1fbc /.editorconfig
parent4c0dc4ee918c3046719af868999785a381f06cc5 (diff)
libpayload/uhci: Re-write UHCI RH driver w/ generic_hub API
This is a complete rewrite of the UHCI root-hub driver, based on the xHCI one. We are doing things by the book as far as possible. One special case is uhci_rh_reset_port() which does the reset se- quencing that usually the hardware would do. This abandons some quirks of the old driver: * Ports are not disabled/re-enabled for every attachment anymore. * We solely rely on the Connect Status Change bit to track changes. * Further status changes are now deferred to the next polling round. The latter fixes endless loops in combination with commit 7faff543da (libpayload: usb: Detach unused USB devices). Change-Id: I5211728775eb94dfc23fa82ebf00fe5c99039709 Signed-off-by: Nico Huber <nico.huber@secunet.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/75504 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
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