[PATCH 0/8] Nuvoton WPCM450 FIU SPI flash controller

[Jonathan Neuschäfer]

This patchset adds DT bindings and a driver for the Flash Interface Unit
(FIU), the SPI flash controller in the Nuvoton WPCM450 BMC SoC. It
supports four chip selects, and direct (memory-mapped) access to 16 MiB
per chip. Larger flash chips can be accessed by software-defined SPI
transfers.

The existing NPCM7xx FIU driver is sufficitently incompatible with the
WPCM450 FIU that I decided to write a new driver.

This patchset depends on the WPCM450 clock support patchset,

	[PATCH v5 0/6] Nuvoton WPCM450 clock and reset driver


Jonathan


Jonathan Neuschäfer (8):
  pinctrl: nuvoton: wpcm450: Refactor MFSEL setting code
  pinctrl: nuvoton: wpcm450: Fix handling of inverted MFSEL bits
  dt-bindings: spi: Add Nuvoton WPCM450 Flash Interface Unit (FIU)
  dt-bindings: mfd: syscon: Add nuvoton,wpcm450-shm
  ARM: dts: wpcm450: Add FIU SPI controller node
  ARM: dts: wpcm450-supermicro-x9sci-ln4f: Add SPI flash
  spi: wpcm-fiu: Add driver for Nuvoton WPCM450 Flash Interface Unit
    (FIU)
  spi: wpcm-fiu: Add direct map support

 .../devicetree/bindings/mfd/syscon.yaml       |   1 +
 .../bindings/spi/nuvoton,wpcm450-fiu.yaml     |  76 +++
 .../nuvoton-wpcm450-supermicro-x9sci-ln4f.dts |   9 +
 arch/arm/boot/dts/nuvoton-wpcm450.dtsi        |  16 +
 drivers/pinctrl/nuvoton/pinctrl-wpcm450.c     |  32 +-
 drivers/spi/Kconfig                           |  11 +
 drivers/spi/Makefile                          |   1 +
 drivers/spi/spi-wpcm-fiu.c                    | 507 ++++++++++++++++++
 8 files changed, 644 insertions(+), 9 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/spi/nuvoton,wpcm450-fiu.yaml
 create mode 100644 drivers/spi/spi-wpcm-fiu.c

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2.35.1