ARM: uniphier: use pr_*() more where appropriate

Commit dd74b945 ("ARM: uniphier: use pr_() instead of printf()
where appropriate"), but I missed to update this file for some reason.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

arch/arm/mach-uniphier/dram/ddrphy-training.c

@@ -5,9 +5,13 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 
-#include <common.h>
+#include <linux/bitops.h>
+#include <linux/delay.h>
 #include <linux/errno.h>
 #include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/printk.h>
+#include <time.h>
 
 #include "ddrphy-init.h"
 #include "ddrphy-regs.h"
@@ -108,7 +112,7 @@ int ddrphy_training(void __iomem *phy_base)
 	u32 init_flag = PHY_PIR_INIT;
 	u32 done_flag = PHY_PGSR0_IDONE;
 	int timeout = 50000; /* 50 msec is long enough */
-#ifdef DISPLAY_ELAPSED_TIME
+#ifdef DEBUG
 	ulong start = get_timer(0);
 #endif
 
@@ -121,8 +125,7 @@ int ddrphy_training(void __iomem *phy_base)
 
 	do {
 		if (--timeout < 0) {
-			printf("%s: error: timeout during DDR training\n",
-								__func__);
+			pr_err("timeout during DDR training\n");
 			return -ETIMEDOUT;
 		}
 		udelay(1);
@@ -131,14 +134,13 @@ int ddrphy_training(void __iomem *phy_base)
 
 	for (i = 0; i < ARRAY_SIZE(init_sequence); i++) {
 		if (pgsr0 & init_sequence[i].err_flag) {
-			printf("%s: error: %s failed\n", __func__,
-						init_sequence[i].description);
+			pr_err("%s failed\n", init_sequence[i].description);
 			return -EIO;
 		}
 	}
 
-#ifdef DISPLAY_ELAPSED_TIME
-	printf("%s: info: elapsed time %ld msec\n", get_timer(start));
+#ifdef DEBUG
+	pr_debug("DDR training: elapsed time %ld msec\n", get_timer(start));
 #endif
 
 	return 0;