diff options
author | Apurva Nandan <a-nandan@ti.com> | 2023-01-23 23:13:18 +0530 |
---|---|---|
committer | Praneeth Bajjuri <praneeth@ti.com> | 2023-01-25 14:10:19 -0600 |
commit | 4c010588248d125631f2046c82858eee0e71e1c1 (patch) | |
tree | 8d7142fedbeb2a2089ace7190a86b40b3b11bcee | |
parent | 42078e1a75f6ac73d769117bb5e18419c41b8e91 (diff) |
mtd: spinand: Define ctrl_ops for non-page read/write op templates
'ctrl_ops' are op templates for non-page read/write operations,
which are: reset, get_feature, set_feature, write_enable, block_erase,
page_read and program_execute ops. The 'ctrl_ops' struct contains in it
op templates for each of this op, as well as enum spinand_protocol
denoting protocol of all these ops.
We require these new op templates because of deviation in standard
SPINAND ops by manufacturers and also due to changes when there is a
change in SPI protocol/mode. This prevents the core from live-patching
and vendor-specific adjustments in ops.
Define 'ctrl_ops', add macros to initialize it and add it in
spinand_device.
Signed-off-by: Apurva Nandan <a-nandan@ti.com>
-rw-r--r-- | include/linux/mtd/spinand.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/include/linux/mtd/spinand.h b/include/linux/mtd/spinand.h index 5395714d3e..95b12689c9 100644 --- a/include/linux/mtd/spinand.h +++ b/include/linux/mtd/spinand.h @@ -297,6 +297,34 @@ struct spinand_op_variants { .nops = sizeof((struct spi_mem_op[]){ __VA_ARGS__ }) / \ sizeof(struct spi_mem_op), \ } +struct spinand_ctrl_ops { + const struct { + struct spi_mem_op reset; + struct spi_mem_op get_feature; + struct spi_mem_op set_feature; + struct spi_mem_op write_enable; + struct spi_mem_op block_erase; + struct spi_mem_op page_read; + struct spi_mem_op program_execute; + } ops; + const enum spinand_protocol protocol; +}; + +#define SPINAND_CTRL_OPS(__protocol, __reset, __get_feature, __set_feature, \ + __write_enable, __block_erase, __page_read, \ + __program_execute) \ + { \ + .ops = { \ + .reset = __reset, \ + .get_feature = __get_feature, \ + .set_feature = __set_feature, \ + .write_enable = __write_enable, \ + .block_erase = __block_erase, \ + .page_read = __page_read, \ + .program_execute = __program_execute, \ + }, \ + .protocol = __protocol, \ + } /** * spinand_ecc_info - description of the on-die ECC implemented by a SPI NAND @@ -389,6 +417,8 @@ struct spinand_info { * @data_ops.read_cache: read cache op template * @data_ops.write_cache: write cache op template * @data_ops.update_cache: update cache op template + * @ctrl_ops: various SPI mem op templates for handling the flash device, i.e. + * non page-read/write ops. * @select_target: select a specific target/die. Usually called before sending * a command addressing a page or an eraseblock embedded in * this die. Only required if your chip exposes several dies @@ -423,6 +453,8 @@ struct spinand_device { const struct spi_mem_op *update_cache; } data_ops; + const struct spinand_ctrl_ops *ctrl_ops; + int (*select_target)(struct spinand_device *spinand, unsigned int target); unsigned int cur_target; |