mips: jz47xx: Add JZ4780 SoC support

Add initial support for the Ingenic JZ47xx MIPS SoC.

Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Reviewed-by: Marek Vasut <marex@denx.de>
diff --git a/MAINTAINERS b/MAINTAINERS
index bb0a107..ae82501 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -525,6 +525,11 @@
 F:	configs/mscc*
 F:	include/configs/vcoreiii.h
 
+MIPS JZ4780
+M:	Ezequiel Garcia <ezequiel@collabora.com>
+S:	Maintained
+F:	arch/mips/mach-jz47xx/
+
 MMC
 M:	Jaehoon Chung <jh80.chung@samsung.com>
 S:	Maintained