arm64: dts: ti: am642-evm: Add overlay for NAND expansion card

The NAND expansion card plugs in over the HSE (High Speed Expansion) connector. Add support for it.

We add the ranges property to the GPMC node instead of the NAND overlay file to prevent below warnings.

/fragment@3/__overlay__: Relying on default #address-cells value /fragment@3/__overlay__: Relying on default #size-cells value

As GPMC is dedicated for NAND use on this board, it should be OK.

---

Notes:
Changelog:
v3:
- Fix dtc warning by moving ranges property into the GPMC node
- update licence to GPL-2.0-only OR MIT and Copyright year to 2024
- don't drop k3-am642-evm.dtb target from Makefile

v2:
- Don't leave k3-am642-evm-nand.dtbo as an orphan. Make k3-am642-evm-nand.dtb with the overlay applied on the base board.

 arch/arm64/boot/dts/ti/Makefile               |   2 +
 arch/arm64/boot/dts/ti/k3-am642-evm-nand.dtso | 139 ++++++++++++++++++
 arch/arm64/boot/dts/ti/k3-am642-evm.dts       |   4 +
 3 files changed, 145 insertions(+)
 create mode 100644 arch/arm64/boot/dts/ti/k3-am642-evm-nand.dtso

index 52c1dc910308..cb03d0013fca 100644
@@ -38,6 +38,8 @@ dtb-$(CONFIG_ARCH_K3) += k3-am62x-sk-hdmi-audio.dtbo
 
 # Boards with AM64x SoC
 dtb-$(CONFIG_ARCH_K3) += k3-am642-evm.dtb
+k3-am642-evm-nand-dtbs := k3-am642-evm.dtb k3-am642-evm-nand.dtbo
+dtb-$(CONFIG_ARCH_K3) += k3-am642-evm-nand.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am642-phyboard-electra-rdk.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am642-sk.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am642-tqma64xxl-mbax4xxl.dtb

index 8c5651d2cf5d..9c7ed3fd361d 100644
@@ -731,3 +731,7 @@ &main_mcan1 {
 	pinctrl-0 = <&main_mcan1_pins_default>;
 	phys = <&transceiver2>;
 };
+
+&gpmc0 {
+	ranges = <0 0 0x00 0x51000000 0x01000000>; /* CS0 space. Min partition = 16MB */
+};

base-commit: 6613476e225e090cc9aad49be7fa504e290dd33d

2.34.1