[U-Boot] [PATCHv3 1/5] mtd: nand: add initialization flag

[Zhiqiang Hou]

From: Hou Zhiqiang <Zhiqiang.Hou at nxp.com>

Add initialization flag to avoid initializing NAND Flash multiple
times, otherwise it will calculate a wrong total size.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou at nxp.com>
---
V3:
 - no change

 drivers/mtd/nand/nand.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/mtd/nand/nand.c b/drivers/mtd/nand/nand.c
index 0551241..3ea2dcf 100644
--- a/drivers/mtd/nand/nand.c
+++ b/drivers/mtd/nand/nand.c
@@ -133,6 +133,16 @@ static void create_mtd_concat(void)
 
 void nand_init(void)
 {
+	static int initialized;
+
+	/*
+	 * Avoid initializing NAND Flash multiple times,
+	 * otherwise it will calculate a wrong total size.
+	 */
+	if (initialized)
+		return;
+	initialized = 1;
+
 #ifdef CONFIG_SYS_NAND_SELF_INIT
 	board_nand_init();
 #else
-- 
2.1.0.27.g96db324