[U-Boot] [PATCH 0/5] sf: Add support to access dual flash memory

[Jagannadha Sutradharudu Teki]

This patchset adds support for dual flash memory accessing with single
chipselect line from the controller.

dual flash memory support is implemented in xilinx zynq qspi controllers
in which dual stacked and dual parallel are the connection modes.

Currently added these connection modes support on winbond and spansion
flash parts, request for respective vendor should validate these support.

REQUEST FOR ALL SPI CODE CONTRIBUTORS/USERS, PLEASE TEST THESE CHANGES
W.R.T YOUR HW IF POSSIBLE.

Please let me know for any issues/concerns/questions.

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Thanks,
Jagan.

Jagannadha Sutradharudu Teki (5):
  sf: Add support for accessing dual parallel memories
  sf: spansion|stmicro: Enable dual parallel access
  sf: Add support for accessing dual stacked memories
  sf: spansion|stmicro: Enable dual stacked access
  sf: Add bank selection support for dual stacked access

 doc/README.spi-flash-conn-modes | 104 ++++++++++++++++++++++++++++++++++++++++
 drivers/mtd/spi/spansion.c      |   9 ++++
 drivers/mtd/spi/spi_flash.c     |  91 +++++++++++++++++++++++++++++------
 drivers/mtd/spi/stmicro.c       |   9 ++++
 include/spi.h                   |   5 ++
 include/spi_flash.h             |   8 ++++
 6 files changed, 211 insertions(+), 15 deletions(-)
 create mode 100644 doc/README.spi-flash-conn-modes

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1.8.3