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| author |   Quentin Schulz <quentin.schulz@cherry.de> | 2025-04-25 17:18:09 +0200 |
|---|---|---|
| committer |   Heiko Stuebner <heiko@sntech.de> | 2025-05-15 14:44:36 +0200 |
| commit | 3373af1d76bacd054b37f3e10266dd335ce425f8 (patch) | |
| tree | 8affa8998256905e64fb62dc35106168bdde5a78 /scripts/lib/kdoc/kdoc_files.py | |
| parent | arm64: dts: rockchip: fix internal USB hub instability on RK3399 Puma (diff) | |
| download | linux-rng-3373af1d76bacd054b37f3e10266dd335ce425f8.tar.xz linux-rng-3373af1d76bacd054b37f3e10266dd335ce425f8.zip | |
arm64: dts: rockchip: disable unrouted USB controllers and PHY on RK3399 Puma
The u2phy1_host port is the part of the USB PHY1 (namely the
HOST1_DP/DM lanes) which routes directly to the USB2.0 HOST
controller[1]. The other lanes of the PHY are routed to the USB3.0 OTG
controller (dwc3), which we do use.
The HOST1_DP/DM lanes aren't routed on RK3399 Puma so let's simply
disable the USB2.0 controllers and associated part in USB2.0 PHY.
No intended functional change.
[1] https://rockchip.fr/Rockchip%20RK3399%20TRM%20V1.3%20Part2.pdf
Chapter 2 USB2.0 PHY
Fixes: 2c66fc34e945 ("arm64: dts: rockchip: add RK3399-Q7 (Puma) SoM")
Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Signed-off-by: Lukasz Czechowski <lukasz.czechowski@thaumatec.com>
Link: https://lore.kernel.org/r/20250425-onboard_usb_dev-v2-4-4a76a474a010@thaumatec.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Diffstat (limited to 'scripts/lib/kdoc/kdoc_files.py')
0 files changed, 0 insertions, 0 deletions