From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Subject: [PATCH 11/14] ARM: i.MX: xload nand: reset NAND before accessing it
Date: Tue, 1 Nov 2022 16:30:45 +0100 [thread overview]
Message-ID: <20221101153048.772146-12-s.hauer@pengutronix.de> (raw)
In-Reply-To: <20221101153048.772146-1-s.hauer@pengutronix.de>
One particular NAND chip here (Toshiba TC58NVG2S0H) doesn't like it when
the ID or ONFI information is read before the NAND chip is resetted. It
works once, but with the second read the chip will not deliver data
anymore. Reset the NAND chip before accessing it.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
arch/arm/mach-imx/xload-gpmi-nand.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm/mach-imx/xload-gpmi-nand.c b/arch/arm/mach-imx/xload-gpmi-nand.c
index af20c11fa6..7e4033d74f 100644
--- a/arch/arm/mach-imx/xload-gpmi-nand.c
+++ b/arch/arm/mach-imx/xload-gpmi-nand.c
@@ -760,6 +760,10 @@ static int mxs_nand_get_info(struct mxs_nand_info *info, void *databuf)
{
int ret, i;
+ ret = mxs_nand_reset(info, databuf);
+ if (ret)
+ return ret;
+
ret = mxs_nand_check_onfi(info, databuf);
if (ret) {
if (ret != 1)
--
2.30.2
next prev parent reply other threads:[~2022-11-01 15:33 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-01 15:30 [PATCH 00/14] Add i.MX7 NAND xload support Sascha Hauer
2022-11-01 15:30 ` [PATCH 01/14] mtd: nand: nand-mxs: Move register definitions to separate file Sascha Hauer
2022-11-02 8:08 ` Marco Felsch
2022-11-01 15:30 ` [PATCH 02/14] ARM: i.MX: xload nand: Use common register defines Sascha Hauer
2022-11-02 8:10 ` Marco Felsch
2022-11-01 15:30 ` [PATCH 03/14] ARM: i.MX: xload nand: add common readid Sascha Hauer
2022-11-02 8:23 ` Marco Felsch
2022-11-01 15:30 ` [PATCH 04/14] dma: apbh-dma: Simplify code Sascha Hauer
2022-11-01 15:30 ` [PATCH 05/14] dma: apbh-dma: unify register defines Sascha Hauer
2022-11-01 15:30 ` [PATCH 06/14] ARM: i.MX: xload-gpmi-nand: refactor for more SoC support Sascha Hauer
2022-11-01 15:30 ` [PATCH 07/14] imx-bbu-nand-fcb: pull printing debug info out of get_fcb() Sascha Hauer
2022-11-01 15:30 ` [PATCH 08/14] ARM: i.MX: xload nand: Pull ECC status checking out of read page Sascha Hauer
2022-11-02 8:33 ` Marco Felsch
2022-11-01 15:30 ` [PATCH 09/14] ARM: i.MX: xload nand: Use final page layout from FCB Sascha Hauer
2022-11-01 15:30 ` [PATCH 10/14] imx-bbu-nand-fcb: Fix reading FCB information from BCH registers Sascha Hauer
2022-11-01 15:30 ` Sascha Hauer [this message]
2022-11-01 15:30 ` [PATCH 12/14] ARM: i.MX: xload nand: Move mxs_nand_mode_fcb_62bit() to header file Sascha Hauer
2022-11-02 8:37 ` Marco Felsch
2022-11-01 15:30 ` [PATCH 13/14] ARM: i.MX: xload nand: Implement i.MX7 support Sascha Hauer
2022-11-02 8:41 ` Marco Felsch
2022-11-02 8:46 ` Sascha Hauer
2022-11-01 15:30 ` [PATCH 14/14] imx-bbu-nand-fcb: Add fcb command Sascha Hauer
2022-11-02 8:44 ` Marco Felsch
2022-11-02 10:55 ` Sascha Hauer
2022-11-02 11:01 ` Marco Felsch
2022-11-02 11:29 ` Sascha Hauer
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