1 files changed, 10 insertions, 0 deletions
diff --git a/arch/mips/include/asm/mach-loongson64/loongson_regs.h b/arch/mips/include/asm/mach-loongson64/loongson_regs.h
index 83dbb9fdf9c2..165993514762 100644
--- a/arch/mips/include/asm/mach-loongson64/loongson_regs.h
+++ b/arch/mips/include/asm/mach-loongson64/loongson_regs.h
@@ -227,6 +227,16 @@ static inline void csr_writeq(u64 val, u32 reg)
 #define CSR_IPI_SEND_CPU_SHIFT	16
 #define CSR_IPI_SEND_BLOCK	BIT(31)
 
+#define LOONGSON_CSR_MAIL_BUF0		0x1020
+#define LOONGSON_CSR_MAIL_SEND		0x1048
+#define CSR_MAIL_SEND_BLOCK		BIT_ULL(31)
+#define CSR_MAIL_SEND_BOX_LOW(box)	(box << 1)
+#define CSR_MAIL_SEND_BOX_HIGH(box)	((box << 1) + 1)
+#define CSR_MAIL_SEND_BOX_SHIFT		2
+#define CSR_MAIL_SEND_CPU_SHIFT		16
+#define CSR_MAIL_SEND_BUF_SHIFT		32
+#define CSR_MAIL_SEND_H32_MASK		0xFFFFFFFF00000000ULL
+
 static inline u64 drdtime(void)
 {
 	int rID = 0;