422b3e1993
Remove all upstreamed patches and add the kernel configuration for version 5.10. The Rock Pi 4 was split in multiple versions. Add a DTS with the old name in order to keep compatibility while having kernel 5.4 and 5.10 in parallel. Switch to the Rock Pi 4A DTS once Kernel 5.4 support is removed. Tested-on: Nanoi R2S Signed-off-by: David Bauer <mail@david-bauer.net>
33 lines
1.1 KiB
Diff
33 lines
1.1 KiB
Diff
From e12f67fe83446432ef16704c22ec23bd1dbcd094 Mon Sep 17 00:00:00 2001
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From: Vicente Bergas <vicencb@gmail.com>
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Date: Tue, 1 Dec 2020 16:41:32 +0100
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Subject: arm64: dts: rockchip: use USB host by default on rk3399-rock-pi-4
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Based on the board schematics at
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https://dl.radxa.com/rockpi4/docs/hw/rockpi4/rockpi_4c_v12_sch_20200620.pdf
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on page 19 there is an USB Type-A receptacle being used as an USB-OTG port.
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But the Type-A connector is not valid for OTG operation, for this reason
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there is a switch to select host or device role.
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This is non-compliant and error prone because switching is manual.
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So, use host mode as it corresponds for a Type-A receptacle.
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Signed-off-by: Vicente Bergas <vicencb@gmail.com>
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Link: https://lore.kernel.org/r/20201201154132.1286-4-vicencb@gmail.com
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Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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---
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arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
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+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
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@@ -680,7 +680,7 @@
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&usbdrd_dwc3_0 {
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status = "okay";
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- dr_mode = "otg";
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+ dr_mode = "host";
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};
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&usbdrd3_1 {
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