openwrt/target/linux/ar7/patches-4.9/100-fix-highmem-offset.patch

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--- a/arch/mips/include/asm/mach-ar7/spaces.h
+++ b/arch/mips/include/asm/mach-ar7/spaces.h
@@ -20,6 +20,8 @@
#define UNCAC_BASE _AC(0xb4000000, UL) /* 0xa0000000 + PHYS_OFFSET */
#define IO_BASE UNCAC_BASE
+#define HIGHMEM_START _AC(0x20000000, UL)
+
#include <asm/mach-generic/spaces.h>
#endif /* __ASM_AR7_SPACES_H */