[PATCH] ARM: dts: add dtsi for exynos7870-j7xelte

[Kaustabh Chakraborty]

From: Antoine Bernard <zalnir at proton.me>

Add properties in the DTSI file which is required for S-BOOT when used
an external device tree when booting into U-Boot. S-BOOT is Samsung's
proprietary bootloader, which chainloads U-Boot.

Add a framebuffer node to the DTSI in order to ensure that display
continues to work.

Signed-off-by: Antoine Bernard <zalnir at proton.me>
Signed-off-by: Kaustabh Chakraborty <kauschluss at disroot.org>
---
 arch/arm/dts/exynos7870-j7xelte-u-boot.dtsi | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm/dts/exynos7870-j7xelte-u-boot.dtsi b/arch/arm/dts/exynos7870-j7xelte-u-boot.dtsi
new file mode 100644
index 00000000000..bef9424b1b6
--- /dev/null
+++ b/arch/arm/dts/exynos7870-j7xelte-u-boot.dtsi
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2026 Antoine Bernard <zalnir at proton.me>
+ */
+
+/ {
+	/* These properties are required by S-BOOT. */
+	model_info-chip = <7870>;
+	model_info-hw_rev = <0>;
+	model_info-hw_rev_end = <255>;
+
+	chosen {
+		#address-cells = <2>;
+		#size-cells = <1>;
+		ranges;
+
+		framebuffer at 67000000 {
+			compatible = "simple-framebuffer";
+			reg = <0x0 0x67000000 (720 * 1280 * 4)>;
+			width = <720>;
+			height = <1280>;
+			stride = <(720 * 4)>;
+			format = "a8r8g8b8";
+		};
+	};
+};

---
base-commit: 6cdd7597a2fbfc1572c1b0af23d3daf1cefa2de7
change-id: 20260513-j7xelte-dtsi-0cd377c618a6

Best regards,
--  
Kaustabh Chakraborty <kauschluss at disroot.org>