leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

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

Browse Source 
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>
This commit is contained in:
Ley Foon Tan 2020-07-10 14:58:14 +08:00 committed by Masahiro Yamada
parent b053515e91
commit 3e57f879ee
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/mtd/nand/raw/denali_dt.c
View File

@ -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);
/*