mtd: nand: remove nand size print from nand_init function

Add nand_size() function to move the nand size print into initr_nand().
Remove nand size print from nand_init() to allow other function to call
nand_init() without printing nand size.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>

common/board_r.c

@@ -426,6 +426,7 @@ static int initr_nand(void)
 {
 	puts("NAND:  ");
 	nand_init();
+	printf("%lu MiB\n", nand_size() / 1024);
 	return 0;
 }
 #endif

drivers/mtd/nand/nand.c

@@ -131,6 +131,11 @@ static void create_mtd_concat(void)
 }
 #endif
 
+unsigned long nand_size(void)
+{
+	return total_nand_size;
+}
+
 void nand_init(void)
 {
 	static int initialized;
@@ -152,8 +157,6 @@ void nand_init(void)
 		nand_init_chip(i);
 #endif
 
-	printf("%lu MiB\n", total_nand_size / 1024);
-
 #ifdef CONFIG_SYS_NAND_SELECT_DEVICE
 	/*
 	 * Select the chip in the board/cpu specific driver

include/nand.h

@@ -28,6 +28,7 @@
 #endif
 
 extern void nand_init(void);
+unsigned long nand_size(void);
 
 #include <linux/compat.h>
 #include <linux/mtd/mtd.h>