Merge patch series "MIPS: Boston: Various enhancements"

Jiaxun Yang <[email protected]> says:

This is a huge series which promoted MIPS/Boston target into a
usable state, with fixes to drivers and general framework issues
I found in this process.

I also converted the target to OF_UPSTREAM.

This target is covered by QEMU, to test on QEMU:
```
make boston64r6el_defconfig
make
qemu-system-mips64el -M boston -cpu I6500 -bios ./u-boot.bin -nographic
```

Link: https://lore.kernel.org/r/[email protected]

1 files changed, 14 insertions, 0 deletions

diff --git a/dts/upstream/src/mips/Makefile b/dts/upstream/src/mips/Makefile
new file mode 100644
index 00000000000..9a8f6aa3584
--- /dev/null
+++ b/dts/upstream/src/mips/Makefile
@@ -0,0 +1,14 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+include $(srctree)/scripts/Makefile.dts
+
+targets += $(dtb-y)
+
+# Add any required device tree compiler flags here
+DTC_FLAGS += -a 0x8
+
+PHONY += dtbs
+dtbs: $(addprefix $(obj)/, $(dtb-y))
+	@:
+
+clean-files := */*.dtb */*.dtbo