[PATCH v2 06/14] mtd: spinand: Add macros for Octal DTR page read and write operations

Apurva Nandan
2021-10-11T20:47:12Z

Define new PAGE_READ_FROM_CACHE and PROG_LOAD op templates for Octal
DTR SPI mode. These templates will be used in op_variants and
op_templates for defining Octal DTR read from cache and write to
cache operations.

Datasheet: https://www.winbond.com/export/sites/winbond/datasheet/W35N01JW_Datasheet_Brief.pdf

Signed-off-by: Apurva Nandan <a-nandan@ti.com>
---
include/linux/mtd/spinand.h | 12 ++++++++++++
1 file changed, 12 insertions(+)

diff --git a/include/linux/mtd/spinand.h b/include/linux/mtd/spinand.h
index ebb19b2cec84..35816b8cfe81 100644
--- a/include/linux/mtd/spinand.h
+++ b/include/linux/mtd/spinand.h
@@ -122,6 +122,12 @@
SPI_MEM_OP_DUMMY(ndummy, 4), \
SPI_MEM_OP_DATA_IN(len, buf, 4))

+#define SPINAND_PAGE_READ_FROM_CACHE_OCTALIO_DTR_OP(addr, ndummy, buf, len) \
+ SPI_MEM_OP(SPI_MEM_OP_CMD_DTR(2, 0x9d9d, 8), \
+ SPI_MEM_OP_ADDR_DTR(2, addr, 8), \
+ SPI_MEM_OP_DUMMY_DTR(ndummy, 8), \
+ SPI_MEM_OP_DATA_IN_DTR(len, buf, 8))
+
#define SPINAND_PROG_EXEC_OP(addr) \
SPI_MEM_OP(SPI_MEM_OP_CMD(0x10, 1), \
SPI_MEM_OP_ADDR(3, addr, 1), \
@@ -140,6 +146,12 @@
SPI_MEM_OP_NO_DUMMY, \
SPI_MEM_OP_DATA_OUT(len, buf, 4))

+#define SPINAND_PROG_LOAD_OCTALIO_DTR(reset, addr, buf, len) \
+ SPI_MEM_OP(SPI_MEM_OP_CMD_DTR(2, reset ? 0x0202 : 0x8484, 8), \
+ SPI_MEM_OP_ADDR_DTR(2, addr, 8), \
+ SPI_MEM_OP_NO_DUMMY, \
+ SPI_MEM_OP_DATA_OUT_DTR(len, buf, 8))
+
#define SPINAND_PROTO_BUSWIDTH_MASK GENMASK(6, 0)
#define SPINAND_PROTO_DTR_BIT BIT(7)

--
2.25.1