From: tkuw584924@gmail.com
To: linux-mtd@lists.infradead.org
Cc: tudor.ambarus@microchip.com, miquel.raynal@bootlin.com,
richard@nod.at, vigneshr@ti.com, p.yadav@ti.com,
michael@walle.cc, tkuw584924@gmail.com,
Bacem.Daassi@infineon.com,
Takahiro Kuwano <Takahiro.Kuwano@infineon.com>
Subject: [PATCH v16 7/8] mtd: spi-nor: spansion: Add local function to discover page size
Date: Thu, 9 Jun 2022 17:57:44 +0900 [thread overview]
Message-ID: <547eb542d62be50ff8afca0677ce6f988c25eb4a.1654741889.git.Takahiro.Kuwano@infineon.com> (raw)
In-Reply-To: <cover.1654741888.git.Takahiro.Kuwano@infineon.com>
From: Takahiro Kuwano <Takahiro.Kuwano@infineon.com>
The page size check in s28hs512t fixup can be used for s25hs/hl-t as well.
Move that to a newly created local function. Please note that the hardcoded
value 3 for the number of address bytes was replaced by
nor->params->addr_nbytes.
Signed-off-by: Takahiro Kuwano <Takahiro.Kuwano@infineon.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
---
drivers/mtd/spi-nor/spansion.c | 54 ++++++++++++++++++++--------------
1 file changed, 32 insertions(+), 22 deletions(-)
diff --git a/drivers/mtd/spi-nor/spansion.c b/drivers/mtd/spi-nor/spansion.c
index 43cd6cd92537..e130f5398763 100644
--- a/drivers/mtd/spi-nor/spansion.c
+++ b/drivers/mtd/spi-nor/spansion.c
@@ -113,6 +113,37 @@ static int cypress_nor_octal_dtr_dis(struct spi_nor *nor)
return 0;
}
+/**
+ * cypress_nor_set_page_size() - Set page size which corresponds to the flash
+ * configuration.
+ * @nor: pointer to a 'struct spi_nor'
+ *
+ * The BFPT table advertises a 512B or 256B page size depending on part but the
+ * page size is actually configurable (with the default being 256B). Read from
+ * CFR3V[4] and set the correct size.
+ *
+ * Return: 0 on success, -errno otherwise.
+ */
+static int cypress_nor_set_page_size(struct spi_nor *nor)
+{
+ struct spi_mem_op op =
+ CYPRESS_NOR_RD_ANY_REG_OP(nor->params->addr_nbytes,
+ SPINOR_REG_CYPRESS_CFR3V,
+ nor->bouncebuf);
+ int ret;
+
+ ret = spi_nor_read_any_reg(nor, &op, nor->reg_proto);
+ if (ret)
+ return ret;
+
+ if (nor->bouncebuf[0] & SPINOR_REG_CYPRESS_CFR3V_PGSZ)
+ nor->params->page_size = 512;
+ else
+ nor->params->page_size = 256;
+
+ return 0;
+}
+
/**
* cypress_nor_octal_dtr_enable() - Enable octal DTR on Cypress flashes.
* @nor: pointer to a 'struct spi_nor'
@@ -167,28 +198,7 @@ static int s28hs512t_post_bfpt_fixup(struct spi_nor *nor,
const struct sfdp_parameter_header *bfpt_header,
const struct sfdp_bfpt *bfpt)
{
- /*
- * The BFPT table advertises a 512B page size but the page size is
- * actually configurable (with the default being 256B). Read from
- * CFR3V[4] and set the correct size.
- */
- struct spi_mem_op op =
- CYPRESS_NOR_RD_ANY_REG_OP(3, SPINOR_REG_CYPRESS_CFR3V,
- nor->bouncebuf);
- int ret;
-
- spi_nor_spimem_setup_op(nor, &op, nor->reg_proto);
-
- ret = spi_mem_exec_op(nor->spimem, &op);
- if (ret)
- return ret;
-
- if (nor->bouncebuf[0] & SPINOR_REG_CYPRESS_CFR3V_PGSZ)
- nor->params->page_size = 512;
- else
- nor->params->page_size = 256;
-
- return 0;
+ return cypress_nor_set_page_size(nor);
}
static const struct spi_nor_fixups s28hs512t_fixups = {
--
2.25.1
______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/
next prev parent reply other threads:[~2022-06-09 9:05 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-09 8:57 [PATCH v16 0/8] mtd: spi-nor: Add support for Infineon s25hl-t/s25hs-t tkuw584924
2022-06-09 8:57 ` [PATCH v16 1/8] mtd: spi-nor: s/addr_width/addr_nbytes tkuw584924
2022-06-21 5:51 ` Pratyush Yadav
2022-06-27 12:37 ` Tudor.Ambarus
2022-07-13 0:08 ` Takahiro Kuwano
2022-06-09 8:57 ` [PATCH v16 2/8] mtd: spi-nor: core: Shrink the storage size of the flash_info's addr_nbytes tkuw584924
2022-06-09 8:57 ` [PATCH v16 3/8] mtd: spi-nor: Do not change nor->addr_nbytes at SFDP parsing time tkuw584924
2022-06-09 8:57 ` [PATCH v16 4/8] mtd: spi-nor: core: Return error code from set_4byte_addr_mode() tkuw584924
2022-06-09 8:57 ` [PATCH v16 5/8] mtd: spi-nor: core: Couple the number of address tkuw584924
2022-06-09 8:57 ` [PATCH v16 6/8] mtd: spi-nor: Do not change nor->params->addr_nbytes at 4BAIT parsing time tkuw584924
2022-06-09 8:57 ` tkuw584924 [this message]
2022-06-09 8:57 ` [PATCH v16 8/8] mtd: spi-nor: spansion: Add s25hl-t/s25hs-t IDs and fixups tkuw584924
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=547eb542d62be50ff8afca0677ce6f988c25eb4a.1654741889.git.Takahiro.Kuwano@infineon.com \
--to=tkuw584924@gmail.com \
--cc=Bacem.Daassi@infineon.com \
--cc=Takahiro.Kuwano@infineon.com \
--cc=linux-mtd@lists.infradead.org \
--cc=michael@walle.cc \
--cc=miquel.raynal@bootlin.com \
--cc=p.yadav@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;
as well as URLs for NNTP newsgroup(s).