realtek: update the tree to the latest refactored version

[openwrt/openwrt.git] / target / linux / realtek / files-5.4 / arch / mips / include / asm / mach-rtl838x / ioremap.h

diff --git a/target/linux/realtek/files-5.4/arch/mips/include/asm/mach-rtl838x/ioremap.h b/target/linux/realtek/files-5.4/arch/mips/include/asm/mach-rtl838x/ioremap.h
new file mode 100644 (file)
index 0000000..e7a5bfa
--- /dev/null
+++ b/target/linux/realtek/files-5.4/arch/mips/include/asm/mach-rtl838x/ioremap.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef RTL838X_IOREMAP_H_
+#define RTL838X_IOREMAP_H_
+
+static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
+{
+       return phys_addr;
+}
+
+static inline int is_rtl838x_internal_registers(phys_addr_t offset)
+{
+       /* IO-Block */
+       if (offset >= 0xb8000000 && offset < 0xb9000000)
+               return 1;
+       /* Switch block */
+       if (offset >= 0xbb000000 && offset < 0xbc000000)
+               return 1;
+       return 0;
+}
+
+static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size,
+                                        unsigned long flags)
+{
+       if (is_rtl838x_internal_registers(offset))
+               return (void __iomem *)offset;
+       return NULL;
+}
+
+static inline int plat_iounmap(const volatile void __iomem *addr)
+{
+       return is_rtl838x_internal_registers((unsigned long)addr);
+}
+
+#endif