From: Bryan Brattlof <bb@ti.com>
Date: Fri, 29 Dec 2023 17:47:06 +0000 (-0600)
Subject: arm: dts: k3-am654: remove duplicate timer
X-Git-Url: http://git.dujemihanovic.xyz/posts?a=commitdiff_plain;h=7cf2fa8096414be4161f0dad8515ddf2ad3fc0f4;p=u-boot.git

arm: dts: k3-am654: remove duplicate timer

timer1 is really just the mcu_timer0 node redefined for the WKUP SPL.
Remove the timer1 and replace it with the mcu_timer0 from the Linux
device tree we imported into U-Boot.

Tested-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Bryan Brattlof <bb@ti.com>
Reviewed-by: Nishanth Menon <nm@ti.com>
---

diff --git a/arch/arm/dts/k3-am654-base-board-u-boot.dtsi b/arch/arm/dts/k3-am654-base-board-u-boot.dtsi
index 4b1e8ce2c9..a008af5b4a 100644
--- a/arch/arm/dts/k3-am654-base-board-u-boot.dtsi
+++ b/arch/arm/dts/k3-am654-base-board-u-boot.dtsi
@@ -5,6 +5,18 @@
 
 #include "k3-am65x-binman.dtsi"
 
+/ {
+	chosen {
+		tick-timer = &mcu_timer0;
+	};
+};
+
+&mcu_timer0 {
+	ti,timer-alwon;
+	clock-frequency = <25000000>;
+	bootph-all;
+};
+
 &vtt_supply {
 	bootph-pre-ram;
 };
diff --git a/arch/arm/dts/k3-am654-r5-base-board.dts b/arch/arm/dts/k3-am654-r5-base-board.dts
index fb13a17b1d..f462262b9a 100644
--- a/arch/arm/dts/k3-am654-r5-base-board.dts
+++ b/arch/arm/dts/k3-am654-r5-base-board.dts
@@ -26,11 +26,6 @@
 		usb1 = &usb1;
 	};
 
-	chosen {
-		stdout-path = "serial2:115200n8";
-		tick-timer = &timer1;
-	};
-
 	a53_0: a53@0 {
 		compatible = "ti,am654-rproc";
 		reg = <0x0 0x00a90000 0x0 0x10>;
@@ -47,16 +42,6 @@
 	};
 };
 
-&cbass_main {
-	timer1: timer@40400000 {
-		compatible = "ti,omap5430-timer";
-		reg = <0x0 0x40400000 0x0 0x80>;
-		ti,timer-alwon;
-		clock-frequency = <25000000>;
-		bootph-all;
-	};
-};
-
 &cbass_mcu {
 	mcu_secproxy: secproxy@28380000 {
 		compatible = "ti,am654-secure-proxy";
@@ -108,6 +93,21 @@
 	};
 };
 
+/*
+ * timer init is called as part of rproc_start() while
+ * starting System Firmware, so any clock/power-domain
+ * operations will fail as SYSFW is not yet up and running.
+ * Delete all clock/power-domain properties to avoid
+ * timer init failure.
+ * This is an always on timer at 20MHz.
+ */
+&mcu_timer0 {
+	/delete-property/ clocks;
+	/delete-property/ assigned-clocks;
+	/delete-property/ assigned-clock-parents;
+	/delete-property/ power-domains;
+};
+
 &dmsc {
 	mboxes= <&mcu_secproxy 8>, <&mcu_secproxy 6>, <&mcu_secproxy 5>;
 	mbox-names = "tx", "rx", "notify";