linux-kernel - [PATCH v3 4/7] arm64: dts: ti: iot2050: Factor out enabling of USB3 support

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Date: Fri,  9 Feb 2024 08:23:18 +0100
From: Jan Kiszka <jan.kiszka@...mens.com>
To: Nishanth Menon <nm@...com>,
	Vignesh Raghavendra <vigneshr@...com>,
	Tero Kristo <kristo@...nel.org>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org,
	Bao Cheng Su <baocheng.su@...mens.com>
Subject: [PATCH v3 4/7] arm64: dts: ti: iot2050: Factor out enabling of USB3 support

From: Jan Kiszka <jan.kiszka@...mens.com>

Already simplifies the existing code by avoid the switch back in the m2
variant to what k3-am65-main.dtsi provided as base.

Signed-off-by: Jan Kiszka <jan.kiszka@...mens.com>
---
 .../dts/ti/k3-am65-iot2050-common-pg2.dtsi    | 18 -------------
 .../boot/dts/ti/k3-am65-iot2050-usb3.dtsi     | 27 +++++++++++++++++++
 .../dts/ti/k3-am6528-iot2050-basic-pg2.dts    |  1 +
 .../dts/ti/k3-am6548-iot2050-advanced-m2.dts  | 13 ---------
 .../dts/ti/k3-am6548-iot2050-advanced-pg2.dts |  1 +
 5 files changed, 29 insertions(+), 31 deletions(-)
 create mode 100644 arch/arm64/boot/dts/ti/k3-am65-iot2050-usb3.dtsi

diff --git a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common-pg2.dtsi b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common-pg2.dtsi
index 42adb8815f38..93d966b67d8d 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common-pg2.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common-pg2.dtsi
@@ -38,21 +38,3 @@ &dss {
 	/* Workaround needed to get DP clock of 154Mhz */
 	assigned-clocks = <&k3_clks 67 0>;
 };
-
-&serdes0 {
-	assigned-clocks = <&k3_clks 153 4>, <&serdes0 AM654_SERDES_CMU_REFCLK>;
-	assigned-clock-parents = <&k3_clks 153 7>, <&k3_clks 153 4>;
-};
-
-&dwc3_0 {
-	assigned-clock-parents = <&k3_clks 151 4>,  /* set REF_CLK to 20MHz i.e. PER0_PLL/48 */
-				 <&k3_clks 151 8>;  /* set PIPE3_TXB_CLK to WIZ8B2M4VSB */
-	phys = <&serdes0 PHY_TYPE_USB3 0>;
-	phy-names = "usb3-phy";
-};
-
-&usb0 {
-	maximum-speed = "super-speed";
-	snps,dis-u1-entry-quirk;
-	snps,dis-u2-entry-quirk;
-};
diff --git a/arch/arm64/boot/dts/ti/k3-am65-iot2050-usb3.dtsi b/arch/arm64/boot/dts/ti/k3-am65-iot2050-usb3.dtsi
new file mode 100644
index 000000000000..3f5fe4c38ebc
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-usb3.dtsi
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) Siemens AG, 2024
+ *
+ * Authors:
+ *   Jan Kiszka <jan.kiszka@...mens.com>
+ *
+ * Common bits for IOT2050 variants with USB3 support
+ */
+
+&serdes0 {
+	assigned-clocks = <&k3_clks 153 4>, <&serdes0 AM654_SERDES_CMU_REFCLK>;
+	assigned-clock-parents = <&k3_clks 153 7>, <&k3_clks 153 4>;
+};
+
+&dwc3_0 {
+	assigned-clock-parents = <&k3_clks 151 4>,  /* set REF_CLK to 20MHz i.e. PER0_PLL/48 */
+				 <&k3_clks 151 8>;  /* set PIPE3_TXB_CLK to WIZ8B2M4VSB */
+	phys = <&serdes0 PHY_TYPE_USB3 0>;
+	phy-names = "usb3-phy";
+};
+
+&usb0 {
+	maximum-speed = "super-speed";
+	snps,dis-u1-entry-quirk;
+	snps,dis-u2-entry-quirk;
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am6528-iot2050-basic-pg2.dts b/arch/arm64/boot/dts/ti/k3-am6528-iot2050-basic-pg2.dts
index c62549a4b436..8be3370d3de1 100644
--- a/arch/arm64/boot/dts/ti/k3-am6528-iot2050-basic-pg2.dts
+++ b/arch/arm64/boot/dts/ti/k3-am6528-iot2050-basic-pg2.dts
@@ -17,6 +17,7 @@
 
 #include "k3-am6528-iot2050-basic-common.dtsi"
 #include "k3-am65-iot2050-common-pg2.dtsi"
+#include "k3-am65-iot2050-usb3.dtsi"
 
 / {
 	compatible = "siemens,iot2050-basic-pg2", "ti,am654";
diff --git a/arch/arm64/boot/dts/ti/k3-am6548-iot2050-advanced-m2.dts b/arch/arm64/boot/dts/ti/k3-am6548-iot2050-advanced-m2.dts
index 2401cbe2b66c..38623501a14f 100644
--- a/arch/arm64/boot/dts/ti/k3-am6548-iot2050-advanced-m2.dts
+++ b/arch/arm64/boot/dts/ti/k3-am6548-iot2050-advanced-m2.dts
@@ -92,16 +92,3 @@ &pcie0_rc {
 &pcie1_rc {
 	status = "disabled";
 };
-
-&dwc3_0 {
-	assigned-clock-parents = <&k3_clks 151 4>,  /* set REF_CLK to 20MHz i.e. PER0_PLL/48 */
-				 <&k3_clks 151 9>;  /* set PIPE3_TXB_CLK to CLK_12M_RC/256 (for HS only) */
-	/delete-property/ phys;
-	/delete-property/ phy-names;
-};
-
-&usb0 {
-	maximum-speed = "high-speed";
-	/delete-property/ snps,dis-u1-entry-quirk;
-	/delete-property/ snps,dis-u2-entry-quirk;
-};
diff --git a/arch/arm64/boot/dts/ti/k3-am6548-iot2050-advanced-pg2.dts b/arch/arm64/boot/dts/ti/k3-am6548-iot2050-advanced-pg2.dts
index c1205feef54e..b6e878a31c27 100644
--- a/arch/arm64/boot/dts/ti/k3-am6548-iot2050-advanced-pg2.dts
+++ b/arch/arm64/boot/dts/ti/k3-am6548-iot2050-advanced-pg2.dts
@@ -18,6 +18,7 @@
 #include "k3-am6548-iot2050-advanced-common.dtsi"
 #include "k3-am65-iot2050-common-pg2.dtsi"
 #include "k3-am65-iot2050-arduino-connector.dtsi"
+#include "k3-am65-iot2050-usb3.dtsi"
 
 / {
 	compatible = "siemens,iot2050-advanced-pg2", "ti,am654";
-- 
2.35.3