linux-kernel - [PATCH] ARM: dts: meson: add the gadget mode properties to the USB0 controller

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Message-Id: <20200504195105.2909711-1-martin.blumenstingl@googlemail.com>
Date:   Mon,  4 May 2020 21:51:05 +0200
From:   Martin Blumenstingl <martin.blumenstingl@...glemail.com>
To:     linux-amlogic@...ts.infradead.org, khilman@...libre.com
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Subject: [PATCH] ARM: dts: meson: add the gadget mode properties to the USB0 controller

Testing with a USB RNDIS connection and iperf3 gives the following
results:
- From the host computer to the device at ~250Mbit/s
- From the device to the host computer at ~76Mbit/s

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
---
 arch/arm/boot/dts/meson.dtsi | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm/boot/dts/meson.dtsi b/arch/arm/boot/dts/meson.dtsi
index 5d198309058a..ae89deaa8c9c 100644
--- a/arch/arm/boot/dts/meson.dtsi
+++ b/arch/arm/boot/dts/meson.dtsi
@@ -229,6 +229,9 @@ usb0: usb@...40000 {
 			interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
 			phys = <&usb0_phy>;
 			phy-names = "usb2-phy";
+			g-rx-fifo-size = <512>;
+			g-np-tx-fifo-size = <500>;
+			g-tx-fifo-size = <256 192 128 128 128>;
 			dr_mode = "host";
 			status = "disabled";
 		};
-- 
2.26.2