diff --git a/payloads/libpayload/include/arm/arch/io.h b/payloads/libpayload/include/arm/arch/io.h
index 6d549dedd1..ce48baf72e 100644
--- a/payloads/libpayload/include/arm/arch/io.h
+++ b/payloads/libpayload/include/arm/arch/io.h
@@ -98,6 +98,12 @@ static inline uint32_t read32(const void *addr)
 	return *(volatile uint32_t *)addr;
 }
 
+static inline uint64_t read64(const void *addr)
+{
+	dmb();
+	return *(volatile uint64_t *)addr;
+}
+
 static inline void write8(void *addr, uint8_t val)
 {
 	dmb();
@@ -119,4 +125,11 @@ static inline void write32(void *addr, uint32_t val)
 	dmb();
 }
 
+static inline void write64(void *addr, uint64_t val)
+{
+	dmb();
+	*(volatile uint64_t *)addr = val;
+	dmb();
+}
+
 #endif
diff --git a/payloads/libpayload/include/arm64/arch/io.h b/payloads/libpayload/include/arm64/arch/io.h
index 00c75c4395..092198842f 100644
--- a/payloads/libpayload/include/arm64/arch/io.h
+++ b/payloads/libpayload/include/arm64/arch/io.h
@@ -99,6 +99,12 @@ static inline uint32_t read32(const void *addr)
 	return *(volatile uint32_t *)addr;
 }
 
+static inline uint64_t read64(const void *addr)
+{
+	dmb();
+	return *(volatile uint64_t *)addr;
+}
+
 static inline void write8(void *addr, uint8_t val)
 {
 	dmb();
@@ -120,4 +126,11 @@ static inline void write32(void *addr, uint32_t val)
 	dmb();
 }
 
+static inline void write64(void *addr, uint64_t val)
+{
+	dmb();
+	*(volatile uint64_t *)addr = val;
+	dmb();
+}
+
 #endif