From: Ley Foon Tan <ley.foon.tan@intel.com>
Date: Fri, 10 Jul 2020 06:58:14 +0000 (+0800)
Subject: mtd: nand: raw: denali: Assert reset before deassert
X-Git-Url: http://git.dujemihanovic.xyz/img/sics.gif?a=commitdiff_plain;h=3e57f879eee61df88c17ca447f1a9f6d7e598cde;p=u-boot.git

mtd: nand: raw: denali: Assert reset before deassert

Always put the controller in reset, then take it out of reset.
This is to make sure controller always in reset state in both SPL and
proper Uboot.

This is preparation for the next patch to poll for reset completion
(rst_comp) bit after reset.

Tested-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Radu Bacrau <radu.bacrau@intel.com>
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---

diff --git a/drivers/mtd/nand/raw/denali_dt.c b/drivers/mtd/nand/raw/denali_dt.c
index 2728e8098f..75ad15b075 100644
--- a/drivers/mtd/nand/raw/denali_dt.c
+++ b/drivers/mtd/nand/raw/denali_dt.c
@@ -148,6 +148,8 @@ static int denali_dt_probe(struct udevice *dev)
 	if (ret) {
 		dev_warn(dev, "Can't get reset: %d\n", ret);
 	} else {
+		reset_assert_bulk(&resets);
+		udelay(2);
 		reset_deassert_bulk(&resets);
 
 		/*