3 files changed, 67 insertions, 0 deletions
diff --git a/arch/mips/include/asm/mach-bmips/cpu-feature-overrides.h b/arch/mips/include/asm/mach-bmips/cpu-feature-overrides.h
new file mode 100644
index 000000000..68a219d80
--- /dev/null
+++ b/arch/mips/include/asm/mach-bmips/cpu-feature-overrides.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_MACH_BMIPS_CPU_FEATURE_OVERRIDES_H
+#define __ASM_MACH_BMIPS_CPU_FEATURE_OVERRIDES_H
+
+/* Invariants across all BMIPS processors */
+#define cpu_has_vtag_icache		0
+#define cpu_icache_snoops_remote_store	1
+
+/* Processor ISA compatibility is MIPS32R1 */
+#define cpu_has_mips32r1		1
+#define cpu_has_mips32r2		0
+#define cpu_has_mips64r1		0
+#define cpu_has_mips64r2		0
+
+#endif /* __ASM_MACH_BMIPS_CPU_FEATURE_OVERRIDES_H */
diff --git a/arch/mips/include/asm/mach-bmips/ioremap.h b/arch/mips/include/asm/mach-bmips/ioremap.h
new file mode 100644
index 000000000..52632ebc7
--- /dev/null
+++ b/arch/mips/include/asm/mach-bmips/ioremap.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_MACH_BMIPS_IOREMAP_H
+#define __ASM_MACH_BMIPS_IOREMAP_H
+
+#include <linux/types.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_bmips_internal_registers(phys_addr_t offset)
+{
+	if (offset >= 0xfff80000)
+		return 1;
+
+	return 0;
+}
+
+static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size,
+					 unsigned long flags)
+{
+	if (is_bmips_internal_registers(offset))
+		return (void __iomem *)offset;
+
+	return NULL;
+}
+
+static inline int plat_iounmap(const volatile void __iomem *addr)
+{
+	return is_bmips_internal_registers((unsigned long)addr);
+}
+
+#endif /* __ASM_MACH_BMIPS_IOREMAP_H */
diff --git a/arch/mips/include/asm/mach-bmips/spaces.h b/arch/mips/include/asm/mach-bmips/spaces.h
new file mode 100644
index 000000000..c59b28fd9
--- /dev/null
+++ b/arch/mips/include/asm/mach-bmips/spaces.h
@@ -0,0 +1,18 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1994 - 1999, 2000, 03, 04 Ralf Baechle
+ * Copyright (C) 2000, 2002  Maciej W. Rozycki
+ * Copyright (C) 1990, 1999, 2000 Silicon Graphics, Inc.
+ */
+#ifndef _ASM_BMIPS_SPACES_H
+#define _ASM_BMIPS_SPACES_H
+
+/* Avoid collisions with system base register (SBR) region on BMIPS3300 */
+#include <asm/bmips-spaces.h>
+
+#include <asm/mach-generic/spaces.h>
+
+#endif /* __ASM_BMIPS_SPACES_H */