linux-kernel - [PATCH v2] ARM: dts: rockchip: Add usb host0 ohci node for rk3288

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Message-Id: <20200704095618.72371-1-jagan@amarulasolutions.com>
Date:   Sat,  4 Jul 2020 15:26:18 +0530
From:   Jagan Teki <jagan@...rulasolutions.com>
To:     Heiko Stuebner <heiko@...ech.de>, Rob Herring <robh+dt@...nel.org>,
        mylene.josserand@...labora.com, Robin Murphy <robin.murphy@....com>
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-rockchip@...ts.infradead.org,
        Suniel Mahesh <sunil@...rulasolutions.com>,
        William Wu <william.wu@...k-chips.com>,
        Michael Trimarchi <michael@...rulasolutions.com>,
        linux-amarula <linux-amarula@...rulasolutions.com>,
        Jagan Teki <jagan@...rulasolutions.com>
Subject: [PATCH v2] ARM: dts: rockchip: Add usb host0 ohci node for rk3288

rk3288 and rk3288w have a usb host0 ohci controller.

Although rk3288 ohci doesn't actually work on hardware, but
rk3288w ohci can work well.

So add usb host0 ohci node in rk3288 dtsi and the quirk in
ohci platform driver will disable ohci on rk3288.

Cc: William Wu <william.wu@...k-chips.com>
Signed-off-by: Jagan Teki <jagan@...rulasolutions.com>
---
Changes for v2:
- Updated NOTE comments.

 arch/arm/boot/dts/rk3288.dtsi | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
index 0cd88774db95..f0774d9afb67 100644
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -614,7 +614,16 @@ usb_host0_ehci: usb@...00000 {
 		status = "disabled";
 	};
 
-	/* NOTE: ohci@...20000 doesn't actually work on hardware */
+	/* NOTE: doesn't work on RK3288, but fixed on RK3288W */
+	usb_host0_ohci: usb@...20000 {
+		compatible = "generic-ohci";
+		reg = <0x0 0xff520000 0x0 0x100>;
+		interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cru HCLK_USBHOST0>;
+		phys = <&usbphy1>;
+		phy-names = "usb";
+		status = "disabled";
+	};
 
 	usb_host1: usb@...40000 {
 		compatible = "rockchip,rk3288-usb", "rockchip,rk3066-usb",
-- 
2.25.1