[PATCH V2] riscv: add #define in asm/io.h for some device drivers

[wefu at redhat.com]

From: Wei Fu <wefu at redhat.com>

This patch adds memcpy_fromio and memcpy_toio definitions for some device
drivers which have these definitions, like cadence_qspi_apb.c

Signed-off-by: Wei Fu <wefu at redhat.com>
Reviewed-by: Bin Meng <bmeng.cn at gmail.com>
---
 arch/riscv/include/asm/io.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/riscv/include/asm/io.h b/arch/riscv/include/asm/io.h
index acf5a96449..b693fd8cd6 100644
--- a/arch/riscv/include/asm/io.h
+++ b/arch/riscv/include/asm/io.h
@@ -64,6 +64,10 @@ static inline phys_addr_t map_to_sysmem(const void *ptr)
 #define __raw_readl(a)			__arch_getl(a)
 #define __raw_readq(a)			__arch_getq(a)
 
+/* adding for cadence_qspi_apb.c */
+#define memcpy_fromio(a, c, l)		memcpy((a), (c), (l))
+#define memcpy_toio(c, a, l)		memcpy((c), (a), (l))
+
 #define dmb()		mb()
 #define __iormb()	rmb()
 #define __iowmb()	wmb()
-- 
2.25.4