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arm64: dts: renesas: r8a7795: salvator-xs: enable usb2_phy3 node

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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 <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Yoshihiro Shimoda
2018-04-27 15:34:30 +09:00
committed by Simon Horman
parent 99b1eb0f62
commit cd49f631dd
1 changed files with 24 additions and 0 deletions
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24
arch/arm64/boot/dts/renesas/r8a7795-salvator-xs.dts
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@@ -145,6 +145,23 @@ usb2_pins: usb2 {
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 @@ &usb2_phy2 {
status = "okay";
};
&usb2_phy3 {
pinctrl-0 = <&usb2_ch3_pins>;
pinctrl-names = "default";
status = "okay";
};