drivers: explicitly select dependency STMP_DEVICE for i.MX23/28 drivers ...

Some of the i.MXs drivers can be build tested even if building for other
platforms. Support adding a future COMPILE_TEST dependency to some of
these drivers by explicitly having their Kconfig symbol select STMP_DEVICE
if the driver calls stmp_reset_block.

This has not been necessary for the normal build, because the ARCH
symbols for the IMX23 and IMX28 already selected STMP_DEVICE.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

spi: Add fsl-dspi driver ...

The fsl-dspi is found on Freescale Vybrid, Coldfire and Layerscape SoCs.
This adds the driver based on the Linux driver as of v5.5. Coldfire
support has been dropped as it's rather obsolete. Vybrid support has
been dropped because it needs the DMA engine support we do not have in
barebox. What's left is support for Layerscape where this driver has
been tested on.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

spi: add Zynq QSPI controller driver ...

This adds the driver for the QSPI controller found on
the Xilinx Zynq SoCs.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

spi: add atmel-quadspi support ...

This adds support for the Atmel quadspi device. Ported from Linux-5.2.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

spi: Kconfig: remove dependency list from Freescale QSPI controller ...

The dependency list for the Freescale QSPI controller doesn't match
the SoCs the hardware is in at all. Remove the dependency entirely as
the driver builds on all machines.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

spi: add driver for Freescale QSPI controller ...

This is based on the Linux v5.1-rc1 driver introduced with the commit:

  commit 84d0431
  Refs: v5.0-rc1-1-g84d043185dbe
  Author:     Frieder Schrempf <frieder.schrempf@kontron.de>
  AuthorDate: Mon Jan 7 09:29:47 2019 +0000
  Commit:     Mark Brown <broonie@kernel.org>
  CommitDate: Mon Jan 7 16:56:24 2019 +0000

      spi: Add a driver for the Freescale/NXP QuadSPI controller

      This driver is derived from the SPI NOR driver at
      mtd/spi-nor/fsl-quadspi.c. It uses the new SPI memory interface
      of the SPI framework to issue flash memory operations to up to
      four connected flash chips (2 buses with 2 CS each).

      The controller does not support generic SPI messages.

      This patch also disables the build of the "old" driver and reuses
      its Kconfig option CONFIG_SPI_FSL_QUADSPI to replace it.

      Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
      Acked-by: Han Xu <han.xu@nxp.com>
      Reviewed-by: Yogesh Gaur <yogeshnarayan.gaur@nxp.com>
      Tested-by: Yogesh Gaur <yogeshnarayan.gaur@nxp.com>
      Tested-by: Han Xu <han.xu@nxp.com>
      Reviewed-by: Boris Brezillon <bbrezillon@kernel.org>
      Signed-off-by: Mark Brown <broonie@kernel.org>

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

spi: Extend the core to ease integration of SPI memory controllers ...

Sync with Linux v5.1-rc1.

This is the barebox adoption of the commit

  commit c36ff26
  Author: Boris Brezillon <boris.brezillon@bootlin.com>
  Date:   Thu Apr 26 18:18:14 2018 +0200

      spi: Extend the core to ease integration of SPI memory controllers

      Some controllers are exposing high-level interfaces to access various
      kind of SPI memories. Unfortunately they do not fit in the current
      spi_controller model and usually have drivers placed in
      drivers/mtd/spi-nor which are only supporting SPI NORs and not SPI
      memories in general.

      This is an attempt at defining a SPI memory interface which works for
      all kinds of SPI memories (NORs, NANDs, SRAMs).

      Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
      Reviewed-by: Frieder Schrempf <frieder.schrempf@exceet.de>
      Tested-by: Frieder Schrempf <frieder.schrempf@exceet.de>
      Signed-off-by: Mark Brown <broonie@kernel.org>

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

i.MX: Select DRIVER_SPI_IMX_2_3 for i.MX8MQ ...

Select DRIVER_SPI_IMX_2_3 for i.MX8MQ since that is the variant that's
being used

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

i.MX: Select DRIVER_SPI_IMX_2_3 for i.MX7 ...

Select DRIVER_SPI_IMX_2_3 for i.MX7 since that is the variant that's
being used.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

spi: i.MX: Add driver for DSPI ...

Add driver for DSPI - SPI IP core found on various Freescale/NXP
products (including Vybrid/VF610).

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: i.MX drivers: enable i.MX50 where already supported ...

The i.MX50 SOC includes one ESDHCv3, three ESDHCv2, one cspi and
two ecspi instances which are supported by existing drivers.

Signed-off-by: Alexander Kurz <akurz@blala.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM i.MX31: add SPI support ...

The i.MX31 SPI interface was refered by freescale as spi_ver_0_4 in one
of their older vendor extended linux releases. spi_ver_0_4 differs only
in minor aspects to spi_ver_0_7 (i.MX35) which is already supported by
barebox.
Regarding barebox, the differences boil down to the location and length
of the CHIP SELECT and BIT COUNT/BURST LENGTH elements of CONREG. The
spi_ver_0_4 variant is limited to single word bursts with a maximum of
32 bits_per_word.

Add support for the i.MX31 SPI interface to the barebox spi_ver_0_7
implementation.

Signed-off-by: Alexander Kurz <akurz@blala.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

spi: Add SPI GPIO bitbang driver ...

This adds a driver for SPI master by GPIO pins.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

spi: mxs-spi: Allow compilation on i.MX28 only ...

The driver does not compile on i.MX23, so remove the i.MX23 from
the dependency list.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/mips' ...

Conflicts:
	arch/mips/boards/loongson-ls1b/serial.c

spi: add controller driver for Atheros AR7XXX/AR9XXX SoCs ...

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

imx-spi: enable v0.7 spi driver for imx53-cspi ...

Signed-off-by: Wjatscheslaw Stoljarski <wjatscheslaw.stoljarski@kiwigrid.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

spi: add Marvell MVEBU SoC SPI driver ...

This adds support for the SPI controller found on Marvell MVEBU SoCs
(Dove, Kirkwood, Discovery Innovation, and Armada 370/XP). Current driver
is DT only. Compatible strings are provided for Orion (common denominator),
Armada 370/XP and Dove SoCs.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

arm: omap: am33xx: set up SPI devices ...

Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

SPI: Add i.MX 23/28 SPI driver support ...

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Cleanup Kconfig files ...

This patch provides a global cleanup barebox Kconfig files. This includes
replacing spaces to tabs, formatting in accordance format, removing
extraneous lines and spaces. No functional changes.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

spi: move the depends on SPI to if SPI and keep config alphanum ordered ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

drivers/spi: add driver for the Multichannel SPI controller found in TI SoCs ...

Also create devices for OMAP3.

Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

i.MX35: add cspi1 support ...

tested with a m25p128 flash both in nand boot & spi boot.

Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

SPI i.MX: Add support for i.MX6 ...

The i.MX5 does not have a valid function to get the spi clock. This
patch introduces a function for i.MX6, and moves the bogus spi clock
speed to the speed-imx5*.c. Not nice, but preserves the current status
quo for i.MX5

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

imx25: imx_spi: support CSPI v0.7 as found on i.MX25 ...

Based on the Linux driver. Tested with m25p80 with CS in GPIO mode.

Clock setting support is ad-hoc as the corresponding mach is not using
the generic clock infrastructure.

Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

spi: add atmel-spi driver ...

Signed-off-by: Hubert Feurstein <h.feurstein@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

nios2: Add Altera SPI master driver ...

Signed-off-by: Franck Jullien <franck.jullien@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: add support for the i.MX53 ...

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Move mfd drivers to drivers/mfd ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>