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authorLey Foon Tan <ley.foon.tan@intel.com>2020-07-10 14:58:14 +0800
committerMasahiro Yamada <yamada.masahiro@socionext.com>2020-07-11 21:30:21 +0900
commit3e57f879eee61df88c17ca447f1a9f6d7e598cde (patch)
tree4f10aa07d7373b8cd862ce4fa23022639c9b8fe5 /drivers/mtd
parentb053515e91258ece015a26b06f812ca5dca37e5a (diff)
downloadu-boot-3e57f879eee61df88c17ca447f1a9f6d7e598cde.tar.gz
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>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/nand/raw/denali_dt.c2
1 files changed, 2 insertions, 0 deletions
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);
/*