From: <Tudor.Ambarus@microchip.com>
To: <boris.brezillon@collabora.com>, <marek.vasut@gmail.com>,
<vigneshr@ti.com>, <miquel.raynal@bootlin.com>, <richard@nod.at>,
<linux-mtd@lists.infradead.org>, <linux-kernel@vger.kernel.org>
Cc: <Tudor.Ambarus@microchip.com>
Subject: [RESEND PATCH v3 18/20] mtd: spi_nor: Introduce spi_nor_set_addr_width()
Date: Mon, 26 Aug 2019 12:09:05 +0000 [thread overview]
Message-ID: <20190826120821.16351-19-tudor.ambarus@microchip.com> (raw)
In-Reply-To: <20190826120821.16351-1-tudor.ambarus@microchip.com>
From: Tudor Ambarus <tudor.ambarus@microchip.com>
Parsing of flash parameters were interleaved with setting of the
nor addr width. Dedicate a function for setting nor addr width.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
---
v3: no changes
drivers/mtd/spi-nor/spi-nor.c | 50 ++++++++++++++++++++++++++-----------------
1 file changed, 30 insertions(+), 20 deletions(-)
diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
index dcda96a20f6c..d13317d1f372 100644
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -4739,6 +4739,33 @@ static const struct flash_info *spi_nor_match_id(const char *name)
return NULL;
}
+static int spi_nor_set_addr_width(struct spi_nor *nor)
+{
+ if (nor->addr_width) {
+ /* already configured from SFDP */
+ } else if (nor->info->addr_width) {
+ nor->addr_width = nor->info->addr_width;
+ } else if (nor->mtd.size > 0x1000000) {
+ /* enable 4-byte addressing if the device exceeds 16MiB */
+ nor->addr_width = 4;
+ } else {
+ nor->addr_width = 3;
+ }
+
+ if (nor->addr_width > SPI_NOR_MAX_ADDR_WIDTH) {
+ dev_err(nor->dev, "address width is too large: %u\n",
+ nor->addr_width);
+ return -EINVAL;
+ }
+
+ /* Set 4byte opcodes when possible. */
+ if (nor->addr_width == 4 && nor->flags & SNOR_F_4B_OPCODES &&
+ !(nor->flags & SNOR_F_HAS_4BAIT))
+ spi_nor_set_4byte_opcodes(nor);
+
+ return 0;
+}
+
int spi_nor_scan(struct spi_nor *nor, const char *name,
const struct spi_nor_hwcaps *hwcaps)
{
@@ -4885,29 +4912,12 @@ int spi_nor_scan(struct spi_nor *nor, const char *name,
if (ret)
return ret;
- if (nor->addr_width) {
- /* already configured from SFDP */
- } else if (info->addr_width) {
- nor->addr_width = info->addr_width;
- } else if (mtd->size > 0x1000000) {
- /* enable 4-byte addressing if the device exceeds 16MiB */
- nor->addr_width = 4;
- } else {
- nor->addr_width = 3;
- }
-
if (info->flags & SPI_NOR_4B_OPCODES)
nor->flags |= SNOR_F_4B_OPCODES;
- if (nor->addr_width == 4 && nor->flags & SNOR_F_4B_OPCODES &&
- !(nor->flags & SNOR_F_HAS_4BAIT))
- spi_nor_set_4byte_opcodes(nor);
-
- if (nor->addr_width > SPI_NOR_MAX_ADDR_WIDTH) {
- dev_err(dev, "address width is too large: %u\n",
- nor->addr_width);
- return -EINVAL;
- }
+ ret = spi_nor_set_addr_width(nor);
+ if (ret)
+ return ret;
/* Send all the required SPI flash commands to initialize device */
ret = spi_nor_init(nor);
--
2.9.5
next prev parent reply other threads:[~2019-08-26 12:09 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-26 12:08 [RESEND PATCH v3 00/20] mtd: spi-nor: move manuf out of the core Tudor.Ambarus
2019-08-26 12:08 ` [RESEND PATCH v3 01/20] mtd: spi-nor: Regroup flash parameter and settings Tudor.Ambarus
2019-08-27 4:21 ` Vignesh Raghavendra
2019-08-26 12:08 ` [RESEND PATCH v3 02/20] mtd: spi-nor: Use nor->params Tudor.Ambarus
2019-08-27 4:31 ` Vignesh Raghavendra
2019-08-26 12:08 ` [RESEND PATCH v3 03/20] mtd: spi-nor: Drop quad_enable() from 'struct spi-nor' Tudor.Ambarus
2019-08-27 4:47 ` Vignesh Raghavendra
2019-08-26 12:08 ` [RESEND PATCH v3 04/20] mtd: spi-nor: Move erase_map to 'struct spi_nor_flash_parameter' Tudor.Ambarus
2019-08-26 12:38 ` Boris Brezillon
2019-08-27 5:39 ` Vignesh Raghavendra
2019-08-26 12:08 ` [RESEND PATCH v3 05/20] mtd: spi-nor: Add default_init() hook to tweak flash parameters Tudor.Ambarus
2019-08-27 5:48 ` Vignesh Raghavendra
2019-08-26 12:08 ` [RESEND PATCH v3 06/20] mtd: spi-nor: Add a default_init() fixup hook for gd25q256 Tudor.Ambarus
2019-08-27 5:48 ` Vignesh Raghavendra
2019-08-26 12:08 ` [RESEND PATCH v3 07/20] mtd: spi_nor: Move manufacturer quad_enable() in ->default_init() Tudor.Ambarus
2019-08-27 5:54 ` Vignesh Raghavendra
2019-08-26 12:08 ` [RESEND PATCH v3 08/20] mtd: spi-nor: Split spi_nor_init_params() Tudor.Ambarus
2019-08-27 6:00 ` Vignesh Raghavendra
2019-08-27 7:01 ` Tudor.Ambarus
2019-08-26 12:08 ` [RESEND PATCH v3 09/20] mtd: spi-nor: Create a ->set_4byte() method Tudor.Ambarus
2019-08-27 6:07 ` Vignesh Raghavendra
2019-08-26 12:08 ` [RESEND PATCH v3 10/20] mtd: spi-nor: Rework the SPI NOR lock/unlock logic Tudor.Ambarus
2019-08-27 6:36 ` Vignesh Raghavendra
2019-08-27 6:58 ` Tudor.Ambarus
2019-08-26 12:08 ` [RESEND PATCH v3 11/20] mtd: spi-nor: Add post_sfdp() hook to tweak flash config Tudor.Ambarus
2019-08-27 7:08 ` Vignesh Raghavendra
2019-08-26 12:08 ` [RESEND PATCH v3 12/20] mtd: spi-nor: Add spansion_post_sfdp_fixups() Tudor.Ambarus
2019-08-27 7:10 ` Vignesh Raghavendra
2019-08-26 12:08 ` [RESEND PATCH v3 13/20] mtd: spi-nor: Add a ->convert_addr() method Tudor.Ambarus
2019-08-27 7:13 ` Vignesh Raghavendra
2019-08-26 12:08 ` [RESEND PATCH v3 14/20] mtd: spi_nor: Add a ->setup() method Tudor.Ambarus
2019-08-26 12:40 ` Boris Brezillon
2019-08-26 13:38 ` Schrempf Frieder
2019-08-26 14:02 ` Boris Brezillon
2019-08-26 14:37 ` Schrempf Frieder
2019-08-27 7:16 ` Vignesh Raghavendra
2019-08-26 12:09 ` [RESEND PATCH v3 15/20] mtd: spi-nor: Add s3an_post_sfdp_fixups() Tudor.Ambarus
2019-08-27 7:18 ` Vignesh Raghavendra
2019-08-26 12:09 ` [RESEND PATCH v3 16/20] mtd: spi-nor: Add the SPI_NOR_XSR_RDY flag Tudor.Ambarus
2019-08-27 7:48 ` Vignesh Raghavendra
2019-08-26 12:09 ` [RESEND PATCH v3 17/20] mtd: spi-nor: Bring flash params init together Tudor.Ambarus
2019-08-27 7:35 ` Vignesh Raghavendra
2019-08-26 12:09 ` Tudor.Ambarus [this message]
2019-08-27 7:37 ` [RESEND PATCH v3 18/20] mtd: spi_nor: Introduce spi_nor_set_addr_width() Vignesh Raghavendra
2019-08-26 12:09 ` [RESEND PATCH v3 19/20] mtd: spi-nor: Introduce spi_nor_get_flash_info() Tudor.Ambarus
2019-08-27 7:37 ` Vignesh Raghavendra
2019-08-26 12:09 ` [RESEND RFC PATCH v3 20/20] mtd: spi-nor: Rework the disabling of block write protection Tudor.Ambarus
2019-08-26 12:49 ` Boris Brezillon
2019-08-27 5:33 ` [RESEND PATCH v3 00/20] mtd: spi-nor: move manuf out of the core Vignesh Raghavendra
2019-08-28 10:18 ` Tudor.Ambarus
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=20190826120821.16351-19-tudor.ambarus@microchip.com \
--to=tudor.ambarus@microchip.com \
--cc=boris.brezillon@collabora.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mtd@lists.infradead.org \
--cc=marek.vasut@gmail.com \
--cc=miquel.raynal@bootlin.com \
--cc=richard@nod.at \
--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;
as well as URLs for NNTP newsgroup(s).