[PATCH v2 0/2] enable spi flash and update is25wp256d page write capabilities

[Sagar Shrikant Kadam <sagar.kadam@xxxxxxxxxx>]

HiFive Unleashed A00 board has is25wp256d snor chip. It is observed
that it gets configured with Serial Input Page program by the end
of spi_nor_scan. Using the post bfpt fixup hook we prioritize the
page program settings to use quad input page program (opcode:0x34)
over serial input page program (opcode: 0x12).

The patchset is tested on Linux 5.7.0-rc5.

Changelog:
===============================
V2:
-Split common code between is25lp256 and is25wp256 devices as suggested
 Added a generic post bfpt fixup handler that identifies the flash parts
 based on their device id and uses the corresponding fixup. Other device's
 that need a post bfpt fixup can just add the device id check and either
 reuse the available fixups or write the necessary fixup code if one is not
 available.
 
V1:
-Moved SPI_SIFIVE from defconfig to Kconfig.socs for SOC_SIFIVE.
 Retained it's configurability using "imply" instead of "select"

V0: Base version patch (Tested on 5.7.0-rc3).


Sagar Shrikant Kadam (2):
  riscv: defconfig: enable spi nor on Hifive Unleashed A00
  spi: nor: update page program settings for is25wp256 using post bfpt
    fixup

 arch/riscv/Kconfig.socs      |  1 +
 arch/riscv/configs/defconfig |  3 +-
 drivers/mtd/spi-nor/issi.c   | 72 ++++++++++++++++++++++++++++++++++++--------
 3 files changed, 63 insertions(+), 13 deletions(-)

-- 
2.7.4


______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/