[PATCH 00/13] mtd: spinand: Add Octal DTR SPI (8D-8D-8D) mode support
From: Apurva Nandan
Date: Tue Jul 13 2021 - 09:06:12 EST
Hi,
This series proposes patches for adding the following functionality
in SPI NAND core:
- Octal DTR SPI (8D-8D-8D) mode support
- Winbond W35N01JW SPI NAND chip support
- Power-on-Reset instruction support
This series has been tested on TI J721e EVM with the Winbond W35N01JW
flash with following test utilities:
- nandtest
Test log: https://textbin.net/raw/fhypoz63f9
- mtd_stresstest
Test log: https://textbin.net/raw/0xqjmqntj7
- UBIFS LTP stress test (NAND_XL_STRESS_DD_RW_UBIFS).
Test log: https://textbin.net/raw/pyokws7wku
Datasheet: https://www.winbond.com/export/sites/winbond/datasheet/W35N01JW_Datasheet_Brief.pdf
Apurva Nandan (13):
spi: spi-mem: Add DTR templates for cmd, address, dummy and data phase
mtd: spinand: Add enum spinand_proto to indicate current SPI IO mode
mtd: spinand: Setup spi_mem_op for the SPI IO protocol using reg_proto
mtd: spinand: Fix odd byte addr and data phase in read/write reg op
and write VCR op for Octal DTR mode
mtd: spinand: Add adjust_op() in manufacturer_ops to modify the ops
for manufacturer specific changes
mtd: spinand: Add macros for Octal DTR page read and write operations
mtd: spinand: Allow enabling Octal DTR mode in the core
mtd: spinand: Reject 8D-8D-8D op_templates if octal_dtr_enale() is
missing in manufacturer_op
mtd: spinand: Add support for write volatile configuration register op
mtd: spinand: Add octal_dtr_enable() for Winbond manufacturer_ops
mtd: spinand: Add support for Power-on-Reset (PoR) instruction
mtd: spinand: Perform Power-on-Reset when runtime_pm suspend is issued
mtd: spinand: Add support for Winbond W35N01JW SPI NAND flash
drivers/mtd/nand/spi/core.c | 196 +++++++++++++++++++++++++++++++--
drivers/mtd/nand/spi/winbond.c | 186 +++++++++++++++++++++++++++++--
include/linux/mtd/spinand.h | 67 +++++++++++
include/linux/spi/spi-mem.h | 87 ++++++++++-----
4 files changed, 494 insertions(+), 42 deletions(-)
--
2.17.1