[PATCH 0/4] Add MSPI support for Cygnus

From: Jonathan Richardson
Date: Thu Apr 02 2015 - 15:21:32 EST

This patchset adds support for the MSPI controller on Cygnus. The existing MSPI
driver in the kernel was written for BCMA which is a Broadcom AMBA bus variant
used on certain chips such as the 53xx.

This patch makes BCMA support optional. The current config is being renamed to
make it chip nonspecific supporting BCMA, and a new config is added to support
non-BCMA chips. DT support is now mandatory to allow removal of a hardcoded SPI

Support is also added to set the baud rate. The controller currently runs at the
slowest speed possible.

Jonathan Richardson (4):
ARM: dts: Add binding for Broadcom MSPI driver.
spi: bcm53xx: Refactor to make driver nonspecific to 53xx SoCs
spi: bcm-mspi: Make BCMA optional to support non-BCMA chips
spi: bcm-mspi: Add support to set serial baud clock rate

.../devicetree/bindings/spi/brcm,mspi-spi.txt | 38 ++
drivers/spi/Kconfig | 12 +-
drivers/spi/Makefile | 3 +-
drivers/spi/spi-bcm-mspi.c | 453 ++++++++++++++++++++
drivers/spi/spi-bcm-mspi.h | 84 ++++
drivers/spi/spi-bcm53xx.c | 299 -------------
drivers/spi/spi-bcm53xx.h | 72 ----
7 files changed, 585 insertions(+), 376 deletions(-)
create mode 100644 Documentation/devicetree/bindings/spi/brcm,mspi-spi.txt
create mode 100644 drivers/spi/spi-bcm-mspi.c
create mode 100644 drivers/spi/spi-bcm-mspi.h
delete mode 100644 drivers/spi/spi-bcm53xx.c
delete mode 100644 drivers/spi/spi-bcm53xx.h


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