From: Yoshihiro Shimoda <[email protected]> This patch enables usb2_phy3 node for r8a7795 with Salvator-XS. You must change the SW31 to OFF-OFF-ON-ON-ON-ON on the board.
Signed-off-by: Yoshihiro Shimoda <[email protected]> Signed-off-by: Simon Horman <[email protected]> --- .../arm64/boot/dts/renesas/r8a7795-salvator-xs.dts | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/r8a7795-salvator-xs.dts b/arch/arm64/boot/dts/renesas/r8a7795-salvator-xs.dts index 83676684c6b4..622b2a22ab0f 100644 --- a/arch/arm64/boot/dts/renesas/r8a7795-salvator-xs.dts +++ b/arch/arm64/boot/dts/renesas/r8a7795-salvator-xs.dts @@ -145,6 +145,23 @@ groups = "usb2"; function = "usb2"; }; + + /* + * - On Salvator-X[S], GP6_3[01] are connected to ADV7482 as irq pins + * (when SW31 is the default setting on Salvator-XS). + * - If SW31 is the default setting, you cannot use USB2.0 ch3 on + * r8a7795 with Salvator-XS. + * Hence the SW31 setting must be changed like 2) below. + * 1) Default setting of SW31: ON-ON-OFF-OFF-OFF-OFF: + * - Connect GP6_3[01] to ADV7842. + * 2) Changed setting of SW31: OFF-OFF-ON-ON-ON-ON: + * - Connect GP6_3[01] to BD082065 (USB2.0 ch3's host power). + * - Connect GP6_{04,21} to ADV7842. + */ + usb2_ch3_pins: usb2_ch3 { + groups = "usb2_ch3"; + function = "usb2_ch3"; + }; }; &usb2_phy2 { @@ -153,3 +170,10 @@ status = "okay"; }; + +&usb2_phy3 { + pinctrl-0 = <&usb2_ch3_pins>; + pinctrl-names = "default"; + + status = "okay"; +}; -- 2.11.0
