1 files changed, 60 insertions, 0 deletions
diff --git a/src/arch/riscv/include/arch/mmio.h b/src/arch/riscv/include/arch/mmio.h
new file mode 100644
index 0000000000..4cbc07bbc7
--- /dev/null
+++ b/src/arch/riscv/include/arch/mmio.h
@@ -0,0 +1,60 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __ARCH_MMIO_H__
+#define __ARCH_MMIO_H__
+
+#include <endian.h>
+#include <stdint.h>
+
+static __always_inline uint8_t read8(const volatile void *addr)
+{
+	return *((volatile uint8_t *)(addr));
+}
+
+static __always_inline uint16_t read16(const volatile void *addr)
+{
+	return *((volatile uint16_t *)(addr));
+}
+
+static __always_inline uint32_t read32(const volatile void *addr)
+{
+	return *((volatile uint32_t *)(addr));
+}
+
+static __always_inline uint64_t read64(const volatile void *addr)
+{
+	return *((volatile uint64_t *)(addr));
+}
+
+static __always_inline void write8(volatile void *addr, uint8_t value)
+{
+	*((volatile uint8_t *)(addr)) = value;
+}
+
+static __always_inline void write16(volatile void *addr, uint16_t value)
+{
+	*((volatile uint16_t *)(addr)) = value;
+}
+
+static __always_inline void write32(volatile void *addr, uint32_t value)
+{
+	*((volatile uint32_t *)(addr)) = value;
+}
+
+static __always_inline void write64(volatile void *addr, uint64_t value)
+{
+	*((volatile uint64_t *)(addr)) = value;
+}
+
+#endif /* __ARCH_MMIO_H__ */