diff options
| author | Tudor Ambarus <tudor.ambarus@microchip.com> | 2019-08-23 17:36:03 +0300 |
|---|---|---|
| committer | Tudor Ambarus <tudor.ambarus@microchip.com> | 2019-08-28 12:40:27 +0300 |
| commit | c46872170a54c902425c8580fd0a75a56ac1d147 (patch) | |
| tree | 55d115ed0fc090796788d36634014f0f881652fe /include/linux/mtd | |
| parent | 42f5994724bcbcdbeb743dcc3e2756ec582cb86b (diff) | |
mtd: spi-nor: Move erase_map to 'struct spi_nor_flash_parameter'
All flash parameters and settings should reside inside
'struct spi_nor_flash_parameter'. Move the SMPT parsed erase map
from 'struct spi_nor' to 'struct spi_nor_flash_parameter'.
Please note that there is a roll-back mechanism for the flash
parameter and settings, for cases when SFDP parser fails. The SFDP
parser receives a Stack allocated copy of nor->params, called
sfdp_params, and uses it to retrieve the serial flash discoverable
parameters. JESD216 SFDP is a standard and has a higher priority
than the default initialized flash parameters, so will overwrite the
sfdp_params data when needed. All SFDP code uses the local copy of
nor->params, that will overwrite it in the end, if the parser succeds.
Saving and restoring the nor->params.erase_map is no longer needed,
since the SFDP code does not touch it.
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 'include/linux/mtd')
| -rw-r--r-- | include/linux/mtd/spi-nor.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h index 17787238f0e9..a86c0d9fb01d 100644 --- a/include/linux/mtd/spi-nor.h +++ b/include/linux/mtd/spi-nor.h @@ -479,6 +479,8 @@ struct spi_nor; * in the array, the higher priority. * @page_programs: page program capabilities ordered by priority: the * higher index in the array, the higher priority. + * @erase_map: the erase map parsed from the SFDP Sector Map Parameter + * Table. * @quad_enable: enables SPI NOR quad mode. */ struct spi_nor_flash_parameter { @@ -489,6 +491,8 @@ struct spi_nor_flash_parameter { struct spi_nor_read_command reads[SNOR_CMD_READ_MAX]; struct spi_nor_pp_command page_programs[SNOR_CMD_PP_MAX]; + struct spi_nor_erase_map erase_map; + int (*quad_enable)(struct spi_nor *nor); }; @@ -519,7 +523,6 @@ struct flash_info; * @read_proto: the SPI protocol for read operations * @write_proto: the SPI protocol for write operations * @reg_proto the SPI protocol for read_reg/write_reg/erase operations - * @erase_map: the erase map of the SPI NOR * @prepare: [OPTIONAL] do some preparations for the * read/write/erase/lock/unlock operations * @unprepare: [OPTIONAL] do some post work after the @@ -562,7 +565,6 @@ struct spi_nor { enum spi_nor_protocol reg_proto; bool sst_write_second; u32 flags; - struct spi_nor_erase_map erase_map; int (*prepare)(struct spi_nor *nor, enum spi_nor_ops ops); void (*unprepare)(struct spi_nor *nor, enum spi_nor_ops ops); @@ -610,7 +612,7 @@ spi_nor_region_mark_overlay(struct spi_nor_erase_region *region) static bool __maybe_unused spi_nor_has_uniform_erase(const struct spi_nor *nor) { - return !!nor->erase_map.uniform_erase_type; + return !!nor->params.erase_map.uniform_erase_type; } static inline void spi_nor_set_flash_node(struct spi_nor *nor, |