From: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Date: Fri, 17 Mar 2017 08:12:30 +0000 (+0800)
Subject: mtd: nand: add initialization flag
X-Git-Tag: v2017.05-rc1~6^2~11
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=d72158c045eacf5022b052bdc56a32bc98c89034;p=oweals%2Fu-boot.git

mtd: nand: add initialization flag

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@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
---

diff --git a/drivers/mtd/nand/nand.c b/drivers/mtd/nand/nand.c
index 05512412b9..3ea2dcfb73 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