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Subject[PATCH v3 0/2] mtd: spi-nor: add stm32 qspi driver
From: Ludovic Barre <>

This patch set adds a SPI-NOR driver for stm32 QSPI controller.
It is a specialized SPI interface for serial Flash devices.
It supports 1 or 2 Flash device with single, dual and quad SPI Flash memories.

It can operate in any of the following modes:
-indirect mode: all the operations are performed using the quadspi
-read memory-mapped mode: the external Flash memory is mapped to the
microcontroller address space and is seen by the system as if it was
an internal memory

Changes in v3:
-dt-bindings: qspi_mm not optional
-dt-bindings: see ../spi/spi-bus.txt
-dt-bindings: spi@...
-cmd flat struct
-macro to avoid hard value "25"

Changes in v2:
-awful construct: s/u32/u8
-add define for timeout
-Use a helper variable
-add comment on "stm32 qspi controller fsize issue

Ludovic Barre (2):
dt-bindings: Document the STM32 QSPI bindings
mtd: spi-nor: add driver for STM32 quad spi flash controller

.../devicetree/bindings/mtd/stm32-quadspi.txt | 43 ++
drivers/mtd/spi-nor/Kconfig | 7 +
drivers/mtd/spi-nor/Makefile | 1 +
drivers/mtd/spi-nor/stm32-quadspi.c | 693 +++++++++++++++++++++
4 files changed, 744 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mtd/stm32-quadspi.txt
create mode 100644 drivers/mtd/spi-nor/stm32-quadspi.c


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