This patch series adds MSCC SPI flash driver. The VCore III SoCs can access directly the flash through memory, this direct mapping is working only for read functions. The other operations are going through SPI driver.
This improves the read performace by a factor of 4.75.
This patch series is based on u-boot-mips/next.
Horatiu Vultur (3): mtd: spi: export functions to sf_internal.h mtd: spi: add MSCC SPI flash driver mips: mscc: use MSCC SPI flash driver for Luton
MAINTAINERS | 1 + arch/mips/dts/luton_pcb090.dts | 3 +- arch/mips/dts/luton_pcb091.dts | 3 +- configs/mscc_luton_defconfig | 1 + drivers/mtd/spi/Kconfig | 8 +++++ drivers/mtd/spi/Makefile | 1 + drivers/mtd/spi/sf_internal.h | 8 +++++ drivers/mtd/spi/sf_mscc_flash.c | 76 +++++++++++++++++++++++++++++++++++++++++ drivers/mtd/spi/sf_probe.c | 8 ++--- drivers/mtd/spi/spi_flash.c | 4 +-- 10 files changed, 105 insertions(+), 8 deletions(-) create mode 100644 drivers/mtd/spi/sf_mscc_flash.c