From: s.hauer@pengutronix.de (Sascha Hauer)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 5/9] mtd: nand: Expose data interface for ONFI mode 0
Date: Fri, 9 Sep 2016 14:05:08 +0200 [thread overview]
Message-ID: <1473422712-12359-6-git-send-email-s.hauer@pengutronix.de> (raw)
In-Reply-To: <1473422712-12359-1-git-send-email-s.hauer@pengutronix.de>
The nand layer will need ONFI mode 0 to use it as timing mode
before and right after reset.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
drivers/mtd/nand/nand_timings.c | 11 +++++++++++
include/linux/mtd/nand.h | 2 ++
2 files changed, 13 insertions(+)
diff --git a/drivers/mtd/nand/nand_timings.c b/drivers/mtd/nand/nand_timings.c
index ece4ff2..5217915 100644
--- a/drivers/mtd/nand/nand_timings.c
+++ b/drivers/mtd/nand/nand_timings.c
@@ -285,3 +285,14 @@ int onfi_init_data_interface(struct nand_data_interface *iface, int mode)
return 0;
}
+
+/**
+ * nand_get_default_data_interface - [NAND Interface] Retrieve NAND
+ * data interface for mode 0. This is used as default timing after
+ * reset.
+ */
+const struct nand_data_interface *nand_get_default_data_interface(void)
+{
+ return &onfi_sdr_timings[0];
+}
+EXPORT_SYMBOL(nand_get_default_data_interface);
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 0044fac..56787da 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -1143,6 +1143,8 @@ static inline int jedec_feature(struct nand_chip *chip)
/* get timing characteristics from ONFI timing mode. */
const struct nand_sdr_timings *onfi_async_timing_mode_to_sdr_timings(int mode);
+/* get data interface from ONFI timing mode 0, used after reset. */
+const struct nand_data_interface *nand_get_default_data_interface(void);
int nand_check_erased_ecc_chunk(void *data, int datalen,
void *ecc, int ecclen,
--
2.8.1
next prev parent reply other threads:[~2016-09-09 12:05 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-09 12:05 [PATCH v4] mtd: nand: automate NAND timings selection Sascha Hauer
2016-09-09 12:05 ` [PATCH 1/9] mtd: nand: Create a NAND reset function Sascha Hauer
2016-09-09 12:15 ` Fabio Estevam
2016-09-09 12:26 ` Boris Brezillon
2016-09-09 19:24 ` Uwe Kleine-König
2016-09-09 12:05 ` [PATCH 2/9] mtd: nand: Introduce nand_data_interface Sascha Hauer
2016-09-09 12:05 ` [PATCH 3/9] mtd: nand: convert ONFI mode into data interface Sascha Hauer
2016-09-09 12:05 ` [PATCH 4/9] mtd: nand: Add function to convert ONFI mode to data_interface Sascha Hauer
2016-09-09 12:35 ` Boris Brezillon
2016-09-12 6:35 ` Sascha Hauer
2016-09-12 18:18 ` Boris Brezillon
2016-09-09 12:05 ` Sascha Hauer [this message]
2016-09-09 12:05 ` [PATCH 6/9] mtd: nand: automate NAND timings selection Sascha Hauer
2016-09-09 12:05 ` [PATCH 7/9] mtd: nand: sunxi: switch from manual to automated timing config Sascha Hauer
2016-09-09 12:05 ` [PATCH 8/9] mtd: nand: mxc: implement onfi get/set features Sascha Hauer
2016-09-09 12:05 ` [PATCH 9/9] mtd: nand: mxc: Add timing setup for v2 controllers Sascha Hauer
-- strict thread matches above, loose matches on Subject: below --
2016-09-15 8:32 [PATCH v4] mtd: nand: automate NAND timings selection Sascha Hauer
2016-09-15 8:32 ` [PATCH 5/9] mtd: nand: Expose data interface for ONFI mode 0 Sascha Hauer
2016-09-15 12:56 ` Boris Brezillon
2016-10-09 5:12 ` Brian Norris
2016-10-09 11:58 ` Boris Brezillon
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