Dne torek, 18. junij 2019 ob 19:13:16 CEST je Clément Péron napisal(a):
Hi,
On Thu, 16 May 2019 at 03:27, Andre Przywara andre.przywara@arm.com wrote:
The first USB controller on the H6 SoC shares a PHY with the OTG controller. Reportedly to avoid problems with the VBUS regulator under Linux, we don't link OHCI0/EHCI0 to the USB PHY in the H6 .dtsi file.
However on boards which can't use peripheral mode (because they have an always-on VBUS supply on an USB-A socket) we don't need this trick, and can properly connect host controller 0 to the PHY 0.
Amend the Pine H64 .dts to reflect this. This enables the upper USB port in U-Boot on this board.
Signed-off-by: Andre Przywara andre.przywara@arm.com
arch/arm/dts/sun50i-h6-pine-h64.dts | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/arm/dts/sun50i-h6-pine-h64.dts b/arch/arm/dts/sun50i-h6-pine-h64.dts index 4802902e12..aad7646b18 100644 --- a/arch/arm/dts/sun50i-h6-pine-h64.dts +++ b/arch/arm/dts/sun50i-h6-pine-h64.dts @@ -96,6 +96,8 @@
};
&ehci0 {
phys = <&usb2phy 0>;phy-names = "usb"; status = "okay";};
@@ -120,6 +122,8 @@
};
&ohci0 {
phys = <&usb2phy 0>;phy-names = "usb"; status = "okay";};
@@ -255,7 +259,6 @@
&usb2otg {
dr_mode = "host";
status = "okay";};
Maybe you should add explicit comments in the device-tree to avoid losing this at next sync with linux dt.
If DT change is U-Boot specific, it should be moved to *-u-boot.dtsi file, although I'm not sure if you can delete properties in such way.
Best regards, Jernej
Regards, Clement
&usb2phy {
-- 2.14.5