[U-Boot] [PATCH 0/2] mips: spi: mscc: Add fast bitbang SPI driver

[Lars Povlsen]

These 2 patches add an optimized SPI bitbang driver for MSCC SOCs that
does not sport the designware SPI hardware controller.

The driver more than doubles the performance for bulk SPI transfers.

This is based off the u-boot-mips/next repository.

Lars Povlsen (2):
  mips: spi: mscc: Add fast bitbang SPI driver
  mips: mscc: DT: Update luton device tree to use fast SPI driver

 MAINTAINERS                   |   1 +
 arch/mips/dts/mscc,luton.dtsi |  15 +-
 configs/mscc_luton_defconfig  |   3 +-
 drivers/spi/Kconfig           |   7 +
 drivers/spi/Makefile          |   1 +
 drivers/spi/mscc_bb_spi.c     | 258 ++++++++++++++++++++++++++++++++++
 6 files changed, 271 insertions(+), 14 deletions(-)
 create mode 100644 drivers/spi/mscc_bb_spi.c

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2.19.2