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* [PATCH v4 0/3] mtd: spi-nor: Extend SFDP to support additional octal modes as per latest JEDEC standard
@ 2022-12-02 13:55 Nathan Barrett-Morrison
  2022-12-02 13:55 ` [PATCH v4 1/3] mtd: spi-nor: Extend SFDP 4byte address instruction lookup table with new octal modes as per JEDEC JESD216F Nathan Barrett-Morrison
                   ` (2 more replies)
  0 siblings, 3 replies; 15+ messages in thread
From: Nathan Barrett-Morrison @ 2022-12-02 13:55 UTC (permalink / raw)
  Cc: nathan.morrison, greg.malysa, Tudor Ambarus, Pratyush Yadav,
	Michael Walle, Miquel Raynal, Richard Weinberger,
	Vignesh Raghavendra, open list:SPI NOR SUBSYSTEM, open list

In the latest JEDEC standard (JESD216F), there are now bitfields in the
4 byte address instruction table for 1S-1S-8S and 1S-8S-8S modes.

This patchset adds support for checking the 4BAIT for these modes.

v2: Move page program commands into sfdp.c instead of core.c,
as this appears to conform more closely with spi-nor paradigm.
Page program buswidth appears to be automatically determined, so let's
follow suit and do the same.

v3:
 - Added missing SPI_NOR_OCTAL_READ_1_8_8 to spi_nor_sfdp check in
   spi_nor_init_params_deprecated()
 - Convert IS25LX256 to 1S-8S-8S instead of 1S-1S-8S
 - Tested and confirmed both 1S-1S-8S and 1S-8S-8S work on IS25LX256

v4:
 - Remove SPI_NOR_OCTAL_READ_1_8_8, this was following a defunct path
 - Correct the IS25LX256's missing BFPT info via a fixup instead

Nathan Barrett-Morrison (3):
  mtd: spi-nor: Extend SFDP 4byte address instruction lookup table with
    new octal modes as per JEDEC JESD216F
  mtd: spi-nor: Add additional octal-mode page program flags to be
    checked during SFDP 4BAIT parsing
  mtd: spi-nor: Add support for IS25LX256 operating in 1S-8S-8S octal
    read mode

 drivers/mtd/spi-nor/issi.c | 32 ++++++++++++++++++++++++++++++++
 drivers/mtd/spi-nor/sfdp.c | 13 +++++++++++++
 2 files changed, 45 insertions(+)

-- 
2.30.2


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^ permalink raw reply	[flat|nested] 15+ messages in thread

end of thread, other threads:[~2022-12-27 13:29 UTC | newest]

Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-12-02 13:55 [PATCH v4 0/3] mtd: spi-nor: Extend SFDP to support additional octal modes as per latest JEDEC standard Nathan Barrett-Morrison
2022-12-02 13:55 ` [PATCH v4 1/3] mtd: spi-nor: Extend SFDP 4byte address instruction lookup table with new octal modes as per JEDEC JESD216F Nathan Barrett-Morrison
2022-12-02 15:13   ` Michael Walle
2022-12-26  8:12   ` Tudor Ambarus
2022-12-02 13:55 ` [PATCH v4 2/3] mtd: spi-nor: Add additional octal-mode page program flags to be checked during SFDP 4BAIT parsing Nathan Barrett-Morrison
2022-12-02 15:16   ` Michael Walle
2022-12-26  8:14   ` Tudor Ambarus
2022-12-02 13:55 ` [PATCH v4 3/3] mtd: spi-nor: Add support for IS25LX256 operating in 1S-8S-8S octal read mode Nathan Barrett-Morrison
2022-12-02 15:20   ` Michael Walle
2022-12-03  4:32   ` kernel test robot
2022-12-03  7:44   ` kernel test robot
2022-12-26  8:04   ` Tudor Ambarus
2022-12-26  8:17     ` Tudor Ambarus
2022-12-27 12:37       ` Michael Walle
2022-12-27 13:24         ` Tudor Ambarus

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