From: Mason Yang <masonccyang@mxic.com.tw>
To: broonie@kernel.org, tudor.ambarus@microchip.com,
miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com,
boris.brezillon@collabora.com, matthias.bgg@gmail.com
Cc: p.yadav@ti.com, juliensu@mxic.com.tw,
linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org,
linux-spi@vger.kernel.org, Mason Yang <masonccyang@mxic.com.tw>
Subject: [PATCH v3 00/14] mtd: spi-nor: add xSPI Octal DTR support
Date: Thu, 28 May 2020 15:58:02 +0800 [thread overview]
Message-ID: <1590652696-8844-1-git-send-email-masonccyang@mxic.com.tw> (raw)
Hello,
JESD216C has defined specification for Octal 8S-8S-8S and 8D-8D-8D.
Based on JEDEC216C Basic Flash Parameter Table (BFPT) driver extract
DWORD-18: command and command extension type.
DWORD-20: Maximum operation speed of device in Octal mode.
xSPI profile 1.0 table:
DWORD-1: Read Fast command, the number of dummy cycles and address nbytes
for Read Status Register command.
DWORD-2: Read/Write volatile Register command for CFG Reg2.
DWORD-4 and DWORD-5: dummy cycles used for various frequencies based on
maximum speed of device from BFPT 20th DWORD.
Ccommand sequences to change to octal DTR mode:
The length of each command sequence is 8 per byte for single SPI mode and
patching driver to parse and execute these sequences for octal DTR mode.
By Vignesh's comments to patch these drivers based on Pratyush's patches
set [1].
This series adds support for Macronix mx25uw51245g works in octal DTR mode.
Tested on Macronix's Zynq PicoZed board with Macronix's SPI controller
(spi-mxic.c) driver patched on mx25uw51245g Octal flash.
[1] https://patchwork.ozlabs.org/project/linux-mtd/cover/20200525091544.17270-1-p.yadav@ti.com/
Summary of change log
v3:
Add support command sequences to change octal DTR mode and based on
part of Pratyush's patches set.
v2:
Parse BFPT & xSPI table for Octal 8D-8D-8D mode parameters and enable Octal
mode in spi_nor_late_init_params().
Using Macros in spi_nor_spimem_read_data, spi_nor_spimem_write_data and
so on by Vignesh comments.
v1:
Without parsing BFPT & xSPI profile 1.0 table and enter Octal 8D-8D-8D
mode directly in spi_nor_fixups hooks.
thnaks for your time and review.
best regards,
Mason
--
Mason Yang (7):
mtd: spi-nor: sfdp: get octal mode maximum speed from BFPT
mtd: spi-nor: sfdp: parse xSPI Profile 1.0 table
mtd: spi-nor: sfdp: parse command sequences to change octal DTR mode
mtd: spi-nor: core: add configuration register 2 read & write support
spi: mxic: patch for octal DTR mode support
mtd: spi-nor: core: execute command sequences to change octal DTR mode
mtd: spi-nor: macronix: Add Octal 8D-8D-8D supports for Macronix
mx25uw51245g
Pratyush Yadav (7):
spi: spi-mem: allow specifying whether an op is DTR or not
spi: spi-mem: allow specifying a command's extension
mtd: spi-nor: add support for DTR protocol
mtd: spi-nor: sfdp: prepare BFPT parsing for JESD216 rev D
mtd: spi-nor: sfdp: get command opcode extension type from BFPT
mtd: spi-nor: core: use dummy cycle and address width info from SFDP
mtd: spi-nor: core: enable octal DTR mode when possible
drivers/mtd/spi-nor/core.c | 514 +++++++++++++++++++++++++++++++++++------
drivers/mtd/spi-nor/core.h | 49 ++++
drivers/mtd/spi-nor/macronix.c | 55 +++++
drivers/mtd/spi-nor/sfdp.c | 278 +++++++++++++++++++++-
drivers/mtd/spi-nor/sfdp.h | 15 +-
drivers/spi/spi-mem.c | 16 +-
drivers/spi/spi-mtk-nor.c | 4 +-
drivers/spi/spi-mxic.c | 101 +++++---
drivers/spi/spi-zynq-qspi.c | 11 +-
include/linux/mtd/spi-nor.h | 51 ++--
include/linux/spi/spi-mem.h | 14 +-
11 files changed, 980 insertions(+), 128 deletions(-)
--
1.9.1
next reply other threads:[~2020-05-28 7:59 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-28 7:58 Mason Yang [this message]
2020-05-28 7:58 ` [PATCH v3 01/14] spi: spi-mem: allow specifying whether an op is DTR or not Mason Yang
2020-05-28 7:58 ` [PATCH v3 02/14] spi: spi-mem: allow specifying a command's extension Mason Yang
2020-05-28 7:58 ` [PATCH v3 03/14] mtd: spi-nor: add support for DTR protocol Mason Yang
2020-05-28 7:58 ` [PATCH v3 04/14] mtd: spi-nor: sfdp: prepare BFPT parsing for JESD216 rev D Mason Yang
2020-05-28 7:58 ` [PATCH v3 05/14] mtd: spi-nor: sfdp: get command opcode extension type from BFPT Mason Yang
2020-05-28 7:58 ` [PATCH v3 06/14] mtd: spi-nor: sfdp: get octal mode maximum speed " Mason Yang
2020-05-28 7:58 ` [PATCH v3 07/14] mtd: spi-nor: sfdp: parse xSPI Profile 1.0 table Mason Yang
2020-05-28 7:58 ` [PATCH v3 08/14] mtd: spi-nor: sfdp: parse command sequences to change octal DTR mode Mason Yang
2020-05-28 7:58 ` [PATCH v3 09/14] mtd: spi-nor: core: add configuration register 2 read & write support Mason Yang
2020-05-28 7:58 ` [PATCH v3 10/14] mtd: spi-nor: core: use dummy cycle and address width info from SFDP Mason Yang
2020-05-28 7:58 ` [PATCH v3 11/14] mtd: spi-nor: core: enable octal DTR mode when possible Mason Yang
2020-05-28 7:58 ` [PATCH v3 12/14] spi: mxic: patch for octal DTR mode support Mason Yang
2020-05-28 21:44 ` kbuild test robot
2020-05-28 7:58 ` [PATCH v3 13/14] mtd: spi-nor: core: execute command sequences to change octal DTR mode Mason Yang
2020-05-28 7:58 ` [PATCH v3 14/14] mtd: spi-nor: macronix: Add Octal 8D-8D-8D supports for Macronix mx25uw51245g Mason Yang
2020-05-28 8:26 ` [PATCH v3 00/14] mtd: spi-nor: add xSPI Octal DTR support Boris Brezillon
2020-05-29 5:27 ` masonccyang
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