diff options
| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2021-06-07 20:39:05 +0300 |
|---|---|---|
| committer | Geert Uytterhoeven <geert+renesas@glider.be> | 2021-07-19 11:51:34 +0300 |
| commit | 3a44a8d130e15939e30f37086055055893c91a02 (patch) | |
| tree | 0bf1ceb9f11a4b73f1d29570a1d5e8869ecbb1ea /arch/arm64/boot/dts/renesas/salvator-xs.dtsi | |
| parent | d18fb00dd0885d547ca67eab88f72e4cc382a4e5 (diff) | |
| download | linux-3a44a8d130e15939e30f37086055055893c91a02.tar.xz | |
arm64: dts: renesas: salvator-xs: Factor out USB ch3 parts
Move the parts related to the fourth USB2 interface on Salvator-XS
boards to salvator-xs.dtsi, to avoid future duplication of board
descriptions.
As this interface is not present on all SoCs that can be found on
Salvator-X(S), but only on R-Car H3 ES2.0+, its descriptions are
protected by the preprocessor symbol SOC_HAS_USB2_CH3, defined in
r8a77951.dtsi, and undefined in r8a77950.dtsi.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/411df1adfd64ee82e5a0d1603df85d657fd4f8c0.1623087028.git.geert+renesas@glider.be
Diffstat (limited to 'arch/arm64/boot/dts/renesas/salvator-xs.dtsi')
| -rw-r--r-- | arch/arm64/boot/dts/renesas/salvator-xs.dtsi | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/renesas/salvator-xs.dtsi b/arch/arm64/boot/dts/renesas/salvator-xs.dtsi index 3f7f6cf4a333..08b925624e12 100644 --- a/arch/arm64/boot/dts/renesas/salvator-xs.dtsi +++ b/arch/arm64/boot/dts/renesas/salvator-xs.dtsi @@ -40,3 +40,46 @@ /* SW12-7 must be set 'Off' (MD12 set to 1) which is not the default! */ #endif /* SOC_HAS_SATA */ + +#ifdef SOC_HAS_USB2_CH3 +&ehci3 { + dr_mode = "otg"; + status = "okay"; +}; + +&hsusb3 { + dr_mode = "otg"; + status = "okay"; +}; + +&ohci3 { + dr_mode = "otg"; + status = "okay"; +}; + +&pfc { + /* + * - 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 + * r8a77951 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_phy3 { + pinctrl-0 = <&usb2_ch3_pins>; + pinctrl-names = "default"; + + status = "okay"; +}; +#endif /* SOC_HAS_USB2_CH3 */ |