From patchwork Mon Jun 29 10:11:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Tan, Ley Foon" X-Patchwork-Id: 243077 List-Id: U-Boot discussion From: ley.foon.tan at intel.com (Ley Foon Tan) Date: Mon, 29 Jun 2020 18:11:20 +0800 Subject: [PATCH 1/2] mtd: nand: raw: denali: Assert reset before deassert Message-ID: <20200629101121.134871-1-ley.foon.tan@intel.com> 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. Signed-off-by: Radu Bacrau Signed-off-by: Ley Foon Tan --- drivers/mtd/nand/raw/denali_dt.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/mtd/nand/raw/denali_dt.c b/drivers/mtd/nand/raw/denali_dt.c index 2728e8098faa..75ad15b0758c 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); /*