diff --git a/common/cmd_mem.c b/common/cmd_mem.c
index 8d2cfc88ce..6d75d025bd 100644
--- a/common/cmd_mem.c
+++ b/common/cmd_mem.c
@@ -188,11 +188,11 @@ static int do_mem_mw(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	buf = map_sysmem(addr, bytes);
 	while (count-- > 0) {
 		if (size == 4)
-			*((ulong *)buf) = (ulong)writeval;
+			*((u32 *)buf) = (u32)writeval;
 		else if (size == 2)
-			*((ushort *)buf) = (ushort)writeval;
+			*((u16 *)buf) = (u16)writeval;
 		else
-			*((u_char *)buf) = (u_char)writeval;
+			*((u8 *)buf) = (u8)writeval;
 		buf += size;
 	}
 	unmap_sysmem(buf);
@@ -300,14 +300,14 @@ static int do_mem_cmp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	for (ngood = 0; ngood < count; ++ngood) {
 		ulong word1, word2;
 		if (size == 4) {
-			word1 = *(ulong *)buf1;
-			word2 = *(ulong *)buf2;
+			word1 = *(u32 *)buf1;
+			word2 = *(u32 *)buf2;
 		} else if (size == 2) {
-			word1 = *(ushort *)buf1;
-			word2 = *(ushort *)buf2;
+			word1 = *(u16 *)buf1;
+			word2 = *(u16 *)buf2;
 		} else {
-			word1 = *(u_char *)buf1;
-			word2 = *(u_char *)buf2;
+			word1 = *(u8 *)buf1;
+			word2 = *(u8 *)buf2;
 		}
 		if (word1 != word2) {
 			ulong offset = buf1 - base;
@@ -433,11 +433,11 @@ static int do_mem_cp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	src = map_sysmem(addr, bytes);
 	while (count-- > 0) {
 		if (size == 4)
-			*((ulong *)buf) = *((ulong  *)src);
+			*((u32 *)buf) = *((u32  *)src);
 		else if (size == 2)
-			*((ushort *)buf) = *((ushort *)src);
+			*((u16 *)buf) = *((u16 *)src);
 		else
-			*((u_char *)buf) = *((u_char *)src);
+			*((u8 *)buf) = *((u8 *)src);
 		src += size;
 		buf += size;
 
@@ -467,9 +467,9 @@ static int do_mem_loop(cmd_tbl_t *cmdtp, int flag, int argc,
 {
 	ulong	addr, length, i, bytes;
 	int	size;
-	volatile uint	*longp;
-	volatile ushort *shortp;
-	volatile u_char	*cp;
+	volatile u32 *longp;
+	volatile u16 *shortp;
+	volatile u8 *cp;
 	const void *buf;
 
 	if (argc < 3)
@@ -498,23 +498,23 @@ static int do_mem_loop(cmd_tbl_t *cmdtp, int flag, int argc,
 	 */
 	if (length == 1) {
 		if (size == 4) {
-			longp = (uint *)buf;
+			longp = (u32 *)buf;
 			for (;;)
 				i = *longp;
 		}
 		if (size == 2) {
-			shortp = (ushort *)buf;
+			shortp = (u16 *)buf;
 			for (;;)
 				i = *shortp;
 		}
-		cp = (u_char *)buf;
+		cp = (u8 *)buf;
 		for (;;)
 			i = *cp;
 	}
 
 	if (size == 4) {
 		for (;;) {
-			longp = (uint *)buf;
+			longp = (u32 *)buf;
 			i = length;
 			while (i-- > 0)
 				*longp++;
@@ -522,14 +522,14 @@ static int do_mem_loop(cmd_tbl_t *cmdtp, int flag, int argc,
 	}
 	if (size == 2) {
 		for (;;) {
-			shortp = (ushort *)buf;
+			shortp = (u16 *)buf;
 			i = length;
 			while (i-- > 0)
 				*shortp++;
 		}
 	}
 	for (;;) {
-		cp = (u_char *)buf;
+		cp = (u8 *)buf;
 		i = length;
 		while (i-- > 0)
 			*cp++;
@@ -544,9 +544,9 @@ int do_mem_loopw (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong	addr, length, i, data, bytes;
 	int	size;
-	volatile uint	*longp;
-	volatile ushort *shortp;
-	volatile u_char	*cp;
+	volatile u32 *longp;
+	volatile u16 *shortp;
+	volatile u8 *cp;
 	void *buf;
 
 	if (argc < 4)
@@ -578,23 +578,23 @@ int do_mem_loopw (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	 */
 	if (length == 1) {
 		if (size == 4) {
-			longp = (uint *)buf;
+			longp = (u32 *)buf;
 			for (;;)
 				*longp = data;
 					}
 		if (size == 2) {
-			shortp = (ushort *)buf;
+			shortp = (u16 *)buf;
 			for (;;)
 				*shortp = data;
 		}
-		cp = (u_char *)buf;
+		cp = (u8 *)buf;
 		for (;;)
 			*cp = data;
 	}
 
 	if (size == 4) {
 		for (;;) {
-			longp = (uint *)buf;
+			longp = (u32 *)buf;
 			i = length;
 			while (i-- > 0)
 				*longp++ = data;
@@ -602,14 +602,14 @@ int do_mem_loopw (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	}
 	if (size == 2) {
 		for (;;) {
-			shortp = (ushort *)buf;
+			shortp = (u16 *)buf;
 			i = length;
 			while (i-- > 0)
 				*shortp++ = data;
 		}
 	}
 	for (;;) {
-		cp = (u_char *)buf;
+		cp = (u8 *)buf;
 		i = length;
 		while (i-- > 0)
 			*cp++ = data;
@@ -1054,11 +1054,11 @@ mod_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const argv[])
 		ptr = map_sysmem(addr, size);
 		printf("%08lx:", addr);
 		if (size == 4)
-			printf(" %08x", *((uint *)ptr));
+			printf(" %08x", *((u32 *)ptr));
 		else if (size == 2)
-			printf(" %04x", *((ushort *)ptr));
+			printf(" %04x", *((u16 *)ptr));
 		else
-			printf(" %02x", *((u_char *)ptr));
+			printf(" %02x", *((u8 *)ptr));
 
 		nbytes = readline (" ? ");
 		if (nbytes == 0 || (nbytes == 1 && console_buffer[0] == '-')) {
@@ -1088,11 +1088,11 @@ mod_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const argv[])
 				reset_cmd_timeout();
 #endif
 				if (size == 4)
-					*((uint *)ptr) = i;
+					*((u32 *)ptr) = i;
 				else if (size == 2)
-					*((ushort *)ptr) = i;
+					*((u16 *)ptr) = i;
 				else
-					*((u_char *)ptr) = i;
+					*((u8 *)ptr) = i;
 				if (incrflag)
 					addr += size;
 			}