MIPS: Loongson64: Add ISA node for LS7A PCH

Although currently we're not enabling any ISA device in devicetree,
but this node is required to express the ranges of address reserved
for ISA.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

diff --git a/arch/mips/boot/dts/loongson/ls7a-pch.dtsi b/arch/mips/boot/dts/loongson/ls7a-pch.dtsi
index 1c286bb8c70360453b4a458355de0cec009b00ce..e574a062dfaeb3ea4592aac3fefe0e536a42cfe6 100644 (file)
--- a/arch/mips/boot/dts/loongson/ls7a-pch.dtsi
+++ b/arch/mips/boot/dts/loongson/ls7a-pch.dtsi
@@ -367,5 +367,12 @@
                                interrupt-map = <0 0 0 0 &pic 39 IRQ_TYPE_LEVEL_HIGH>;
                        };
                };
+
+               isa {
+                       compatible = "isa";
+                       #address-cells = <2>;
+                       #size-cells = <1>;
+                       ranges = <1 0 0 0x18000000 0x20000>;
+               };
        };
 };