ARM: dts: at91: sam9x75_curiosity: add tweaks for sam9x75 curiosity board

Since the SoC and board DT are already available in dts/upstream,
add the difference from upstream DTS to at91-sam9x75_curiosity-u-boot.dtsi

Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>
Reviewed-by: Eugen Hristev <eugen.hristev@linaro.org>

1 files changed, 95 insertions, 0 deletions

diff --git a/arch/arm/dts/at91-sam9x75_curiosity-u-boot.dtsi b/arch/arm/dts/at91-sam9x75_curiosity-u-boot.dtsi
new file mode 100644
index 00000000000..94585ee0232
--- /dev/null
+++ b/arch/arm/dts/at91-sam9x75_curiosity-u-boot.dtsi
@@ -0,0 +1,95 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * at91-sam9x75_curiosity-u-boot.dtsi - Device Tree file for SAM9X75
+ * CURIOSITY board.
+ *
+ * Copyright (C) 2025 Microchip Technology Inc. and its subsidiaries
+ *
+ * Author: Manikandan Muralidharan <manikandan.m@microchip.com>
+ */
+
+/ {
+	cpus {
+		cpu@0 {
+			clocks = <&pmc PMC_TYPE_CORE 25>, <&pmc PMC_TYPE_CORE 17>, <&main_xtal>;
+			clock-names = "cpu", "master", "xtal";
+		};
+	};
+
+	clocks {
+		slow_rc_osc: slow_rc_osc {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <18500>;
+		};
+	};
+
+	ahb {
+		bootph-all;
+
+		apb {
+			bootph-all;
+
+			pinctrl {
+				bootph-all;
+			};
+		};
+	};
+
+	chosen {
+		bootph-all;
+	};
+};
+
+&clk32k {
+	bootph-all;
+	clocks = <&slow_rc_osc>, <&slow_xtal>;
+};
+
+&dbgu {
+	bootph-all;
+};
+
+&gmac {
+	compatible = "microchip,sam9x7-gem", "cdns,sama7g5-gem";
+};
+
+&main_xtal {
+	bootph-all;
+};
+
+&pinctrl_dbgu_default {
+	bootph-all;
+};
+
+&pinctrl_sdmmc0_default {
+	bootph-all;
+};
+
+&pioA {
+	bootph-all;
+};
+
+&pioB {
+	bootph-all;
+};
+
+&pit64b0 {
+	bootph-all;
+};
+
+&pmc {
+	bootph-all;
+};
+
+&sdmmc0 {
+	bootph-all;
+};
+
+&slow_xtal {
+	bootph-all;
+};
+
+&slow_rc_osc {
+	bootph-all;
+};