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rockchip: rk3588-rock-5b: Add USB-C controller to u-boot.dtsi

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Add USB-C controller (fusb302), which will be used by U-Boot to
initialize USB-PD. This is needed, because USB-PD communication
must happen within 5 seconds after the USB-C connector got plugged.
On my Rock 5B it often takes 5 seconds to jump to the Linux binary,
so it must happen before Linux is initialized.

This adds the DT node to the U-Boot specific file, since the Linux
kernel DT currently does not describe it to avoid a system reset.
The plan is to add it to the Linux DT with status = 'fail' and then
let U-Boot mark it as status = 'okay' if it properly dealt with
early USB-PD initialization. Until the Kernel DT has the node, let's
add it in U-Boot to get things going.

Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Tested-by: Soeren Moch <smoch@web.de>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Reviewed-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
Sebastian Reichel
2024-10-15 17:26:46 +02:00
committed by Marek Vasut
parent 64002d0cb0
commit 12049db764
1 changed files with 28 additions and 0 deletions
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28
arch/arm/dts/rk3588-rock-5b-u-boot.dtsi
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@@ -3,6 +3,7 @@
* Copyright (c) 2023 Collabora Ltd.
*/
#include <dt-bindings/usb/pd.h>
#include "rk3588-u-boot.dtsi"
&fspim2_pins {
@@ -10,6 +11,33 @@
bootph-some-ram;
};
&i2c4 {
pinctrl-names = "default";
pinctrl-0 = <&i2c4m1_xfer>;
status = "okay";
usbc0: usb-typec@22 {
compatible = "fcs,fusb302";
reg = <0x22>;
interrupt-parent = <&gpio3>;
interrupts = <RK_PB4 IRQ_TYPE_LEVEL_LOW>;
pinctrl-names = "default";
status = "okay";
usb_con: connector {
compatible = "usb-c-connector";
label = "USB-C";
data-role = "dual";
power-role = "sink";
try-power-role = "sink";
op-sink-microwatt = <1000000>;
sink-pdos =
<PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)>,
<PDO_VAR(5000, 20000, 5000)>;
};
};
};
&sdhci {
cap-mmc-highspeed;
mmc-hs200-1_8v;