[PATCH 09/11] ARM: dts: exynos7870-j6lte: add properties to make S-BOOT happy

[Kaustabh Chakraborty]

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.

Since this device has multiple bank nodes, add memory nodes for each RAM
bank. This is the format S-BOOT recognizes, and (re)populates it with
the correct bank sizes.

Signed-off-by: Kaustabh Chakraborty <kauschluss at disroot.org>
---
 arch/arm/dts/exynos7870-j6lte-u-boot.dtsi | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/arch/arm/dts/exynos7870-j6lte-u-boot.dtsi b/arch/arm/dts/exynos7870-j6lte-u-boot.dtsi
index 9d944b127ee..aa499ecf479 100644
--- a/arch/arm/dts/exynos7870-j6lte-u-boot.dtsi
+++ b/arch/arm/dts/exynos7870-j6lte-u-boot.dtsi
@@ -4,6 +4,11 @@
  */
 
 / {
+	/* 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>;
@@ -18,4 +23,24 @@
 			format = "a8r8g8b8";
 		};
 	};
+
+	/*
+	 * S-BOOT will populate the memory nodes stated below. Existing
+	 * values redefine the safe memory requirements as stated in upstream
+	 * device tree, in separate nodes for each bank.
+	 */
+	memory at 40000000 {
+		device_type = "memory";
+		reg = <0x0 0x40000000 0x3d800000>;
+	};
+
+	memory at 80000000 {
+		device_type = "memory";
+		reg = <0x0 0x80000000 0x40000000>;
+	};
+
+	memory at 100000000 {
+		device_type = "memory";
+		reg = <0x1 0x00000000 0x00000000>;
+	};
 };

-- 
2.52.0