Since a R-Car Gen3 bootloader enables the PFC of USB3.0 channel 0, the USB3.0 host controller works without this setting on the kernel. But, this setting should have salvator-common.dtsi. So, this patch adds the pfc node for USB3.0 channel 0.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda...@renesas.com> --- This patch is based on the renesas.git / renesas-devel-20171002-v4.14-rc3 tag. Since related patches are already merged into renesas-drivers.git / sh-pfc-for-v4.15, this patch is possible to apply for v4.15, I think. https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git/commit/?h=sh-pfc-for-v4.15&id=3627126ce39d8c7d35a9251b074fedd2edf9f743 https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git/commit/?h=sh-pfc-for-v4.15&id=5ec8a41a36715cf543cb7c109097fb3b4cdfb427 https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git/commit/?h=sh-pfc-for-v4.15&id=656285a892ce3ea9b9397826562789c0de1f5fc0 arch/arm64/boot/dts/renesas/salvator-common.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/salvator-common.dtsi b/arch/arm64/boot/dts/renesas/salvator-common.dtsi index e41e53b..3dcb26b 100644 --- a/arch/arm64/boot/dts/renesas/salvator-common.dtsi +++ b/arch/arm64/boot/dts/renesas/salvator-common.dtsi @@ -495,6 +495,11 @@ bias-pull-down; }; }; + + usb30_pins: usb30 { + groups = "usb30"; + function = "usb30"; + }; }; &pwm1 { @@ -630,5 +635,8 @@ }; &xhci0 { + pinctrl-0 = <&usb30_pins>; + pinctrl-names = "default"; + status = "okay"; }; -- 1.9.1
