spl_mmc: only call printf or puts with CONFIG_SPL_LIBCOMMON_SUPPORT

If we don't have CONFIG_SPL_LIBCOMMON_SUPPORT defined then stdio
functions are unavailable & calling them will cause a link failure.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>

common/spl/spl_mmc.c

@@ -44,8 +44,10 @@ static int mmc_load_image_raw(struct mmc *mmc, unsigned long sector)
 					(void *)spl_image.load_addr);
 
 end:
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
 	if (err == 0)
 		printf("spl: mmc blk read err - %lu\n", err);
+#endif
 
 	return (err == 0);
 }
@@ -57,7 +59,9 @@ static int mmc_load_image_raw_os(struct mmc *mmc)
 				       CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR,
 				       CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS,
 				       (void *)CONFIG_SYS_SPL_ARGS_ADDR)) {
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
 		printf("mmc args blk read error\n");
+#endif
 		return -1;
 	}
 
@@ -83,9 +87,11 @@ static int mmc_load_image_fat(struct mmc *mmc, const char *filename)
 	err = file_fat_read(filename, (u8 *)spl_image.load_addr, 0);
 
 end:
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
 	if (err <= 0)
 		printf("spl: error reading image %s, err - %d\n",
 		       filename, err);
+#endif
 
 	return (err <= 0);
 }
@@ -98,8 +104,10 @@ static int mmc_load_image_fat_os(struct mmc *mmc)
 	err = file_fat_read(CONFIG_SPL_FAT_LOAD_ARGS_NAME,
 			    (void *)CONFIG_SYS_SPL_ARGS_ADDR, 0);
 	if (err <= 0) {
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
 		printf("spl: error reading image %s, err - %d\n",
 		       CONFIG_SPL_FAT_LOAD_ARGS_NAME, err);
+#endif
 		return -1;
 	}
 
@@ -119,13 +127,17 @@ void spl_mmc_load_image(void)
 	/* We register only one device. So, the dev id is always 0 */
 	mmc = find_mmc_device(0);
 	if (!mmc) {
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
 		puts("spl: mmc device not found!!\n");
+#endif
 		hang();
 	}
 
 	err = mmc_init(mmc);
 	if (err) {
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
 		printf("spl: mmc init failed: err - %d\n", err);
+#endif
 		hang();
 	}
 
@@ -144,7 +156,9 @@ void spl_mmc_load_image(void)
 		err = fat_register_device(&mmc->block_dev,
 					  CONFIG_SYS_MMC_SD_FAT_BOOT_PARTITION);
 		if (err) {
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
 			printf("spl: fat register err - %d\n", err);
+#endif
 			hang();
 		}
 
@@ -154,7 +168,9 @@ void spl_mmc_load_image(void)
 		err = mmc_load_image_fat(mmc, CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME);
 #endif
 	} else {
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
 		puts("spl: wrong MMC boot mode\n");
+#endif
 		hang();
 	}