From: Pratyush Yadav <p.yadav@ti.com>
To: Tudor Ambarus <tudor.ambarus@microchip.com>,
Miquel Raynal <miquel.raynal@bootlin.com>,
Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>,
<linux-mtd@lists.infradead.org>, <linux-kernel@vger.kernel.org>
Cc: Boris Brezillon <boris.brezillon@collabora.com>,
Sekhar Nori <nsekhar@ti.com>, Pratyush Yadav <p.yadav@ti.com>
Subject: [PATCH v13 07/15] mtd: spi-nor: core: use dummy cycle and address width info from SFDP
Date: Wed, 16 Sep 2020 18:14:10 +0530 [thread overview]
Message-ID: <20200916124418.833-8-p.yadav@ti.com> (raw)
In-Reply-To: <20200916124418.833-1-p.yadav@ti.com>
The xSPI Profile 1.0 table specifies how many dummy cycles and address
bytes are needed for the Read Status Register command in octal DTR mode.
Use that information to send the correct Read SR command.
Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
---
drivers/mtd/spi-nor/core.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c
index cbb1aab27d03..88c9e18067f4 100644
--- a/drivers/mtd/spi-nor/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -383,6 +383,11 @@ static int spi_nor_read_sr(struct spi_nor *nor, u8 *sr)
SPI_MEM_OP_NO_DUMMY,
SPI_MEM_OP_DATA_IN(1, sr, 1));
+ if (spi_nor_protocol_is_dtr(nor->reg_proto)) {
+ op.addr.nbytes = nor->params->rdsr_addr_nbytes;
+ op.dummy.nbytes = nor->params->rdsr_dummy;
+ }
+
spi_nor_spimem_setup_op(nor, &op, nor->reg_proto);
ret = spi_mem_exec_op(nor->spimem, &op);
@@ -415,6 +420,11 @@ static int spi_nor_read_fsr(struct spi_nor *nor, u8 *fsr)
SPI_MEM_OP_NO_DUMMY,
SPI_MEM_OP_DATA_IN(1, fsr, 1));
+ if (spi_nor_protocol_is_dtr(nor->reg_proto)) {
+ op.addr.nbytes = nor->params->rdsr_addr_nbytes;
+ op.dummy.nbytes = nor->params->rdsr_dummy;
+ }
+
spi_nor_spimem_setup_op(nor, &op, nor->reg_proto);
ret = spi_mem_exec_op(nor->spimem, &op);
--
2.28.0
______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/
next prev parent reply other threads:[~2020-09-16 12:46 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-16 12:44 [PATCH v13 00/15] mtd: spi-nor: add xSPI Octal DTR support Pratyush Yadav
2020-09-16 12:44 ` [PATCH v13 01/15] mtd: spi-nor: core: use EOPNOTSUPP instead of ENOTSUPP Pratyush Yadav
2020-09-29 11:30 ` Tudor.Ambarus
2020-09-16 12:44 ` [PATCH v13 02/15] mtd: spi-nor: core: add spi_nor_{read, write}_reg() helpers Pratyush Yadav
2020-09-29 11:38 ` [PATCH v13 02/15] mtd: spi-nor: core: add spi_nor_{read,write}_reg() helpers Tudor.Ambarus
2020-09-29 12:54 ` Pratyush Yadav
2020-09-16 12:44 ` [PATCH v13 03/15] mtd: spi-nor: core: add spi_nor_controller_ops_erase helper Pratyush Yadav
2020-09-16 12:44 ` [PATCH v13 04/15] mtd: spi-nor: add support for DTR protocol Pratyush Yadav
2020-09-16 12:44 ` [PATCH v13 05/15] mtd: spi-nor: sfdp: get command opcode extension type from BFPT Pratyush Yadav
2020-09-30 6:17 ` Tudor.Ambarus
2020-09-16 12:44 ` [PATCH v13 06/15] mtd: spi-nor: sfdp: parse xSPI Profile 1.0 table Pratyush Yadav
2020-09-30 6:44 ` Tudor.Ambarus
2020-09-30 6:53 ` Pratyush Yadav
2020-09-16 12:44 ` Pratyush Yadav [this message]
2020-09-30 6:46 ` [PATCH v13 07/15] mtd: spi-nor: core: use dummy cycle and address width info from SFDP Tudor.Ambarus
2020-09-16 12:44 ` [PATCH v13 08/15] mtd: spi-nor: core: do 2 byte reads for SR and FSR in DTR mode Pratyush Yadav
2020-09-30 6:50 ` Tudor.Ambarus
2020-09-30 6:55 ` Pratyush Yadav
2020-09-16 12:44 ` [PATCH v13 09/15] mtd: spi-nor: core: enable octal DTR mode when possible Pratyush Yadav
2020-09-29 11:26 ` Tudor.Ambarus
2020-09-29 12:51 ` Pratyush Yadav
2020-09-29 13:05 ` Tudor.Ambarus
2020-09-30 7:11 ` Tudor.Ambarus
2020-09-16 12:44 ` [PATCH v13 10/15] mtd: spi-nor: sfdp: detect Soft Reset sequence support from BFPT Pratyush Yadav
2020-09-30 7:23 ` Tudor.Ambarus
2020-09-30 7:31 ` Pratyush Yadav
2020-09-16 12:44 ` [PATCH v13 11/15] mtd: spi-nor: core: perform a Soft Reset on shutdown Pratyush Yadav
2020-09-29 13:08 ` Pratyush Yadav
2020-09-30 7:32 ` Tudor.Ambarus
2020-09-30 7:43 ` Pratyush Yadav
2020-09-16 12:44 ` [PATCH v13 12/15] mtd: spi-nor: core: disable Octal DTR mode on suspend Pratyush Yadav
2020-09-30 7:40 ` Tudor.Ambarus
2020-09-30 7:44 ` Pratyush Yadav
2020-09-16 12:44 ` [PATCH v13 13/15] mtd: spi-nor: core: expose spi_nor_default_setup() in core.h Pratyush Yadav
2020-09-30 7:51 ` Tudor.Ambarus
2020-09-30 8:03 ` Pratyush Yadav
2020-09-16 12:44 ` [PATCH v13 14/15] mtd: spi-nor: spansion: add support for Cypress Semper flash Pratyush Yadav
2020-09-30 8:36 ` Tudor.Ambarus
2020-09-30 12:32 ` Pratyush Yadav
2020-09-16 12:44 ` [PATCH v13 15/15] mtd: spi-nor: micron-st: allow using MT35XU512ABA in Octal DTR mode Pratyush Yadav
2020-09-30 9:12 ` Tudor.Ambarus
2020-09-29 9:59 ` [RFC PATCH 0/3] mtd: spi-nor: Tackle stateful modes Tudor Ambarus
2020-09-29 9:59 ` [RFC PATCH 1/3] mtd: spi-nor: Introduce SNOR_F_IO_MODE_EN_VOLATILE Tudor Ambarus
2020-09-29 16:45 ` Vignesh Raghavendra
2020-09-29 9:59 ` [RFC PATCH 2/3] mtd: spi-nor: Introduce MTD_SPI_NOR_ALLOW_STATEFUL_MODES Tudor Ambarus
2020-09-29 16:45 ` Vignesh Raghavendra
2020-09-29 9:59 ` [RFC PATCH 3/3] mtd: spi-nor: Parse SFDP SCCR Map Tudor Ambarus
2020-09-30 9:57 ` [PATCH v13 00/15] mtd: spi-nor: add xSPI Octal DTR support Tudor.Ambarus
2020-09-30 12:01 ` Pratyush Yadav
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200916124418.833-8-p.yadav@ti.com \
--to=p.yadav@ti.com \
--cc=boris.brezillon@collabora.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mtd@lists.infradead.org \
--cc=miquel.raynal@bootlin.com \
--cc=nsekhar@ti.com \
--cc=richard@nod.at \
--cc=tudor.ambarus@microchip.com \
--cc=vigneshr@ti.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox