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| author |   Tudor Ambarus <tudor.ambarus@microchip.com> | 2019-08-24 12:07:16 +0000 |
|---|---|---|
| committer | Tudor Ambarus <tudor.ambarus@microchip.com> | 2019-08-28 12:40:29 +0300 |
| commit | 641edddb4f43e8adfd851aea3e48ba35c3b81f4a (patch) | |
| tree | 479dca784b28e541c31a950465f581853762b794 /drivers/mtd | |
| parent | mtd: spi-nor: Add a ->setup() method (diff) | |
| download | linux-dev-641edddb4f43e8adfd851aea3e48ba35c3b81f4a.tar.xz linux-dev-641edddb4f43e8adfd851aea3e48ba35c3b81f4a.zip | |
mtd: spi-nor: Add s3an_post_sfdp_fixups()
s3an_nor_scan() was overriding the opcode selection done in
spi_nor_default_setup(). Set nor->setup() method in order to
avoid the unnecessary call to spi_nor_default_setup().
Now that the call to spi_nor_default_setup() is skipped, set
mtd.erasesize to nor->info->sector_size, as it was when
spi_nor_select_erase() was called.
No dummy byte is required for the S3AN's Random Read command (0x03),
so no need to set nor->read_dummy.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/spi-nor/spi-nor.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index 449c7bfff2bd..3fea085cd055 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -2718,7 +2718,8 @@ static int spi_nor_check(struct spi_nor *nor) return 0; } -static int s3an_nor_scan(struct spi_nor *nor) +static int s3an_nor_setup(struct spi_nor *nor, + const struct spi_nor_hwcaps *hwcaps) { int ret; @@ -2753,6 +2754,7 @@ static int s3an_nor_scan(struct spi_nor *nor) } else { /* Flash in Default addressing mode */ nor->params.convert_addr = s3an_convert_addr; + nor->mtd.erasesize = nor->info->sector_size; } return 0; @@ -4530,6 +4532,11 @@ static void spansion_post_sfdp_fixups(struct spi_nor *nor) nor->mtd.erasesize = nor->info->sector_size; } +static void s3an_post_sfdp_fixups(struct spi_nor *nor) +{ + nor->params.setup = s3an_nor_setup; +} + /** * spi_nor_post_sfdp_fixups() - Updates the flash's parameters and settings * after SFDP has been parsed (is also called for SPI NORs that do not @@ -4551,6 +4558,9 @@ static void spi_nor_post_sfdp_fixups(struct spi_nor *nor) break; } + if (nor->info->flags & SPI_S3AN) + s3an_post_sfdp_fixups(nor); + if (nor->info->fixups && nor->info->fixups->post_sfdp) nor->info->fixups->post_sfdp(nor); } @@ -4899,12 +4909,6 @@ int spi_nor_scan(struct spi_nor *nor, const char *name, return -EINVAL; } - if (info->flags & SPI_S3AN) { - ret = s3an_nor_scan(nor); - if (ret) - return ret; - } - /* Send all the required SPI flash commands to initialize device */ ret = spi_nor_init(nor); if (ret) |