[PATCH 0/9] Socfpga: QSPI support
s.trumtrar at pengutronix.de
Fri Mar 6 08:25:14 PST 2015
This series adds support for reading,writing and booting from Quad SPI
flash chips on the SoCFPFGA platform.
The driver is based on a patch for linux, which is still in development.
As this driver uses the spi-nor framework, this is imported into barebox, too.
A next step would be to update the m25p80 driver, as both share a lot of code.
In linux this migration is already done.
With the QSPI driver in place, support for booting from it is also added.
As the preloader barebox doesn't have a devicetree to go from, the driver doesn't
touch the registers that have already been set up successfully by the Boot ROM code.
If there ever is any other user of the Cadence QSPI core, that does not have a
devicetree to probe from, platform code might have to be added for this initialization.
As there isn't at the moment, I chose to not bother with this.
Steffen Trumtrar (9):
mtd: spi-nor: add SPI-NOR framework
mtd: spi-nor: enable quadspi for n25q00/n25q256a
mtd: spi-nor: add cadence quadspi driver
ARM: dts: socfpga: add qspi node
ARM: socfpga: socdk add qspi flash
ARM: socfpga: socrates: add qspi flash
ARM: socfpga: sockit: add qspi flash
ARM: socfpga: xload: support qspi bootsource
ARM: socfpga: update defconfigs
Documentation/boards/socfpga.rst | 56 +-
arch/arm/configs/socfpga-xload_defconfig | 3 +-
arch/arm/configs/socfpga_defconfig | 77 +-
arch/arm/dts/socfpga.dtsi | 15 +
arch/arm/dts/socfpga_cyclone5_socdk.dts | 21 +
arch/arm/dts/socfpga_cyclone5_sockit.dts | 20 +
arch/arm/dts/socfpga_cyclone5_socrates.dts | 20 +
arch/arm/mach-socfpga/include/mach/generic.h | 5 +
arch/arm/mach-socfpga/include/mach/socfpga-regs.h | 2 +
arch/arm/mach-socfpga/xload.c | 58 +-
drivers/mtd/Kconfig | 1 +
drivers/mtd/Makefile | 1 +
drivers/mtd/spi-nor/Kconfig | 15 +
drivers/mtd/spi-nor/Makefile | 2 +
drivers/mtd/spi-nor/cadence-quadspi.c | 1193 +++++++++++++++++++++
drivers/mtd/spi-nor/spi-nor.c | 1143 ++++++++++++++++++++
include/linux/mod_devicetable.h | 7 +
include/linux/mtd/spi-nor.h | 204 ++++
include/platform_data/cadence_qspi.h | 9 +
19 files changed, 2808 insertions(+), 44 deletions(-)
create mode 100644 drivers/mtd/spi-nor/Kconfig
create mode 100644 drivers/mtd/spi-nor/Makefile
create mode 100644 drivers/mtd/spi-nor/cadence-quadspi.c
create mode 100644 drivers/mtd/spi-nor/spi-nor.c
create mode 100644 include/linux/mtd/spi-nor.h
create mode 100644 include/platform_data/cadence_qspi.h
More information about the barebox