From 6778948f9de86c3cfaf36725a7c87dcff9ba247f Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 08:20:59 +0000
Subject: [PATCH] kernel_5.10 no rt
---
kernel/arch/arm/boot/dts/da850-lego-ev3.dts | 38 +++++++++++++++++++++++++++++++++-----
1 files changed, 33 insertions(+), 5 deletions(-)
diff --git a/kernel/arch/arm/boot/dts/da850-lego-ev3.dts b/kernel/arch/arm/boot/dts/da850-lego-ev3.dts
index c4729d0..afd04a4 100644
--- a/kernel/arch/arm/boot/dts/da850-lego-ev3.dts
+++ b/kernel/arch/arm/boot/dts/da850-lego-ev3.dts
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Device tree for LEGO MINDSTORMS EV3
*
* Copyright (C) 2017 David Lechner <david@lechnology.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation, version 2.
*/
/dts-v1/;
@@ -125,6 +122,15 @@
amp-supply = <&>;
};
+ cvdd: regulator0 {
+ compatible = "regulator-fixed";
+ regulator-name = "cvdd";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
/*
* This is a 5V current limiting regulator that is shared by USB,
* the sensor (input) ports, the motor (output) ports and the A/DC.
@@ -202,6 +208,27 @@
&ref_clk {
clock-frequency = <24000000>;
+};
+
+&cpu {
+ cpu-supply = <&cvdd>;
+};
+
+/* since we have a fixed regulator, we can't run at these points */
+&opp_100 {
+ status = "disabled";
+};
+
+&opp_200 {
+ status = "disabled";
+};
+
+/*
+ * The SoC is actually the 456MHz version, but because of the fixed regulator
+ * This is the fastest we can go.
+ */
+&opp_375 {
+ status = "okay";
};
&pmx_core {
@@ -352,7 +379,8 @@
compatible = "ti,ads7957";
reg = <3>;
#io-channel-cells = <1>;
- spi-max-frequency = <10000000>;
+ spi-max-frequency = <1000000>;
+ ti,spi-wdelay = <63>;
vref-supply = <&adc_ref>;
};
};
--
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