1 files changed, 23 insertions, 0 deletions

diff --git a/arch/mips/mm/ioremap64.c b/arch/mips/mm/ioremap64.c
new file mode 100644
index 000000000..15e7820d6
--- /dev/null
+++ b/arch/mips/mm/ioremap64.c
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <linux/io.h>
+#include <ioremap.h>
+
+void __iomem *ioremap_prot(phys_addr_t offset, unsigned long size,
+                unsigned long prot_val)
+{
+        unsigned long flags = prot_val & _CACHE_MASK;
+        u64 base = (flags == _CACHE_UNCACHED ? IO_BASE : UNCAC_BASE);
+        void __iomem *addr;
+
+        addr = plat_ioremap(offset, size, flags);
+        if (!addr)
+                addr = (void __iomem *)(unsigned long)(base + offset);
+        return addr;
+}
+EXPORT_SYMBOL(ioremap_prot);
+
+void iounmap(const volatile void __iomem *addr)
+{
+        plat_iounmap(addr);
+}
+EXPORT_SYMBOL(iounmap);