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Subject[PATCH v2 1/3] mtd: spi-nor: Bring flash params init together
Date
From: Tudor Ambarus <tudor.ambarus@microchip.com>

Bring all flash parameters default initialization in
spi_nor_legacy_params_init().

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
---
drivers/mtd/spi-nor/spi-nor.c | 29 +++++++++++------------------
1 file changed, 11 insertions(+), 18 deletions(-)

diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
index e76c23d1c54a..7e6da0ace2c7 100644
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -4469,6 +4469,7 @@ static void spi_nor_legacy_init_params(struct spi_nor *nor)
struct spi_nor_flash_parameter *params = &nor->params;
struct spi_nor_erase_map *map = &params->erase_map;
const struct flash_info *info = nor->info;
+ struct device_node *np = spi_nor_get_flash_node(nor);
u8 i, erase_mask;

/* Initialize legacy flash parameters and settings. */
@@ -4480,18 +4481,25 @@ static void spi_nor_legacy_init_params(struct spi_nor *nor)
params->size = (u64)info->sector_size * info->n_sectors;
params->page_size = info->page_size;

+ if (!(info->flags & SPI_NOR_NO_FR)) {
+ /* Default to Fast Read for DT and non-DT platform devices. */
+ params->hwcaps.mask |= SNOR_HWCAPS_READ_FAST;
+
+ /* Mask out Fast Read if not requested at DT instantiation. */
+ if (np && !of_property_read_bool(np, "m25p,fast-read"))
+ params->hwcaps.mask &= ~SNOR_HWCAPS_READ_FAST;
+ }
+
/* (Fast) Read settings. */
params->hwcaps.mask |= SNOR_HWCAPS_READ;
spi_nor_set_read_settings(&params->reads[SNOR_CMD_READ],
0, 0, SPINOR_OP_READ,
SNOR_PROTO_1_1_1);

- if (!(info->flags & SPI_NOR_NO_FR)) {
- params->hwcaps.mask |= SNOR_HWCAPS_READ_FAST;
+ if (params->hwcaps.mask & SNOR_HWCAPS_READ_FAST)
spi_nor_set_read_settings(&params->reads[SNOR_CMD_READ_FAST],
0, 8, SPINOR_OP_READ_FAST,
SNOR_PROTO_1_1_1);
- }

if (info->flags & SPI_NOR_DUAL_READ) {
params->hwcaps.mask |= SNOR_HWCAPS_READ_1_1_2;
@@ -4897,24 +4905,9 @@ int spi_nor_scan(struct spi_nor *nor, const char *name,
nor->page_size = params->page_size;
mtd->writebufsize = nor->page_size;

- if (np) {
- /* If we were instantiated by DT, use it */
- if (of_property_read_bool(np, "m25p,fast-read"))
- params->hwcaps.mask |= SNOR_HWCAPS_READ_FAST;
- else
- params->hwcaps.mask &= ~SNOR_HWCAPS_READ_FAST;
- } else {
- /* If we weren't instantiated by DT, default to fast-read */
- params->hwcaps.mask |= SNOR_HWCAPS_READ_FAST;
- }
-
if (of_property_read_bool(np, "broken-flash-reset"))
nor->flags |= SNOR_F_BROKEN_RESET;

- /* Some devices cannot do fast-read, no matter what DT tells us */
- if (info->flags & SPI_NOR_NO_FR)
- params->hwcaps.mask &= ~SNOR_HWCAPS_READ_FAST;
-
/*
* Configure the SPI memory:
* - select op codes for (Fast) Read, Page Program and Sector Erase.
--
2.9.5
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