From: Heiko Schocher <hs@denx.de>
Date: Fri, 18 Jan 2019 09:45:56 +0000 (+0100)
Subject: env: sf: fix environment in SPI NOR
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=3d5931e5986a49c44cdab845c6751d845812e8d8;p=u-boot.git

env: sf: fix environment in SPI NOR

commit 9a9d66f5eff0 ("env: add spi_flash_read_env function")

breaks Environment functionality, as it reads only
until 2 \0 are found, but fills the buffer with 0x0
instead 0xff which leads in an incorrect crc sum.

Fix: init the read buffer with 0xff instead 0x00

Signed-off-by: Heiko Schocher <hs@denx.de>
---

diff --git a/env/sf.c b/env/sf.c
index b3dec82c35..31dd003575 100644
--- a/env/sf.c
+++ b/env/sf.c
@@ -98,7 +98,7 @@ static int spi_flash_read_env(struct spi_flash *flash, u32 offset, size_t len,
 	u32 addr = 0;
 	u32 page_size = flash->page_size;
 
-	memset(buf, 0x0, len);
+	memset(buf, 0xff, len);
 	for (int i = 0; i < len / page_size; ++i) {
 		int ret = spi_flash_read(flash, offset, page_size,
 					 &((char *)buf)[addr]);