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Though we don't use Type-C PHY to support USB3 in firmware,
we still need to initialize the Type-C PHY, and make sure
the power state of pipe is always fixed to U2/P2. After
this, we can force USB3 controller to work in USB2 only
mode.
BRANCH=none
BUG=chrome-os-partner:56425
TEST=Go to recovery mode, plug a Type-C USB drive containing
chrome OS image into both ports in all orientations, check if
system can boot from USB.
Change-Id: I95bb96ff27d4fecafb7b2b9e9dc2839b5c132654
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 8ec98507845276119d8a9d5626934dedcb35f2dd
Original-Change-Id: Ie3654cd1c1cb76b62aa9b247879b60cbecee0155
Original-Signed-off-by: William wu <wulf@rock-chips.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/391412
Original-Commit-Ready: Julius Werner <jwerner@chromium.org>
Original-Tested-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/16910
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
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In USB2 only mode, the Type-C PHY will be held in reset and
only the USB2 logic of the USB3 OTG controller and PHY will be
used over the USB2 pins on the Type-C connector to support Low,
Full and High-speed USB operation.
BRANCH=none
BUG=chrome-os-partner:56425
TEST=Go to recovery mode, plug a Type-C USB drive containing
chrome OS image into both ports in all orientations, check if
system can boot from USB.
Change-Id: Ic265c0c91c24f63b2f9c3106eb2bb277a589233b
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: a37ccc5b6019967483eac6b5a360d67bc3326e93
Original-Change-Id: I582f04f84eef447ff0ba691ce60e9461ed31cfad
Original-Signed-off-by: Liangfeng Wu <wulf@rock-chips.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/385837
Original-Commit-Ready: Julius Werner <jwerner@chromium.org>
Original-Tested-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/16717
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
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The Rockchip RK3399 integrates a USB Type-C PHY in charge of things like
SuperSpeed line muxing for rotated cable orientations in the SoC. While
fancy, this is very complicated and we don't want to implement support
for the whole thing in firmware. The USB Type-C standard has
intentionally been designed in a way that the USB 2.0 (HighSpeed) lines
always "just work" in any orientation (by just shorting different pins
in the connector together) so that simple use cases like ours can get
basic USB functionality without much hassle.
However, a semi-configured Type-C PHY can confuse USB 3.0 capable
devices into thinking we're actually supporting SuperSpeed, and fail at
that rather than establishing a reliable HighSpeed connection. This
patch sets enough bits in the Type-C PHY to electrically isolate the
SuperSpeed lines from the connector so that the connected device isn't
going to get any fancy ideas and reliably falls back to USB 2.0.
Also clean up the rest of the USB code while we're at it: avoid writing
a few bits that are already in the right state from their reset values
anyway, or reading values whose content we already know for this SoC.
Rename the USB controllers to the name actually used in the Rockchip
documentation (USB OTGx) rather than the name blindly copied from
Exynos code (USB DRDx).
BRANCH=None
BUG=chrome-os-partner:54621
TEST=Plug a USB 3.0 Patriot Memory stick into both ports in all
orientations, observe how it gets reliably detected now (safe for some
known hardware issues on my board).
Change-Id: Ifce6bcddd69f2e8f2e2a2f48faf65551e084da1e
Signed-off-by: Martin Roth <martinroth@chromium.org>
Original-Commit-Id: c526906f998bf66067d3addb8b3d3a126c188b1e
Original-Change-Id: Ie80a201a58764c4d851fe4a5098a5acfc4bcebdf
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/366160
Original-Reviewed-by: liangfeng wu <wulf@rock-chips.com>
Original-Reviewed-by: Shelley Chen <shchen@chromium.org>
Original-Reviewed-by: <515506667@qq.com>
Reviewed-on: https://review.coreboot.org/16125
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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This patch adds code to initialize the two DWC3 USB
host controllers, and uses them to initialize USB3.0
on the gru rk3399 board.
BRANCH=none
BUG=chrome-os-partner:52684
TEST=boot from USB3.0 on gru/kevin rk3399 platform
Change-Id: If6a6e56f3a7c7ce8e8b098634cfc2f250a91810d
Signed-off-by: Martin Roth <martinroth@chromium.org>
Original-Commit-Id: 0306a9e
Original-Change-Id: I796fa1133510876f75873d134ea752e1b52e40a8
Original-Signed-off-by: Liangfeng Wu <wulf@rock-chips.com>
Original-Signed-off-by: Douglas Anderson <dianders@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/347524
Original-Commit-Ready: Brian Norris <briannorris@chromium.org>
Original-Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/15112
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
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