diff --git a/drivers/pci/controller/mobiveil/pcie-mobiveil.h b/drivers/pci/controller/mobiveil/pcie-mobiveil.h
index f395fa661a1c6..ac76cf5d10074 100644
--- a/drivers/pci/controller/mobiveil/pcie-mobiveil.h
+++ b/drivers/pci/controller/mobiveil/pcie-mobiveil.h
@@ -182,10 +182,33 @@ static inline u32 mobiveil_csr_readl(struct mobiveil_pcie *pcie, u32 off)
 	return mobiveil_csr_read(pcie, off, 0x4);
 }
 
+static inline u16 mobiveil_csr_readw(struct mobiveil_pcie *pcie, u32 off)
+{
+	return mobiveil_csr_read(pcie, off, 0x2);
+}
+
+static inline u8 mobiveil_csr_readb(struct mobiveil_pcie *pcie, u32 off)
+{
+	return mobiveil_csr_read(pcie, off, 0x1);
+}
+
+
 static inline void mobiveil_csr_writel(struct mobiveil_pcie *pcie, u32 val,
 				       u32 off)
 {
 	mobiveil_csr_write(pcie, val, off, 0x4);
 }
 
+static inline void mobiveil_csr_writew(struct mobiveil_pcie *pcie, u16 val,
+				       u32 off)
+{
+	mobiveil_csr_write(pcie, val, off, 0x2);
+}
+
+static inline void mobiveil_csr_writeb(struct mobiveil_pcie *pcie, u8 val,
+				       u32 off)
+{
+	mobiveil_csr_write(pcie, val, off, 0x1);
+}
+
 #endif /* _PCIE_MOBIVEIL_H */