The Meson SPIFC driver uses regmap mmio functions and so it must
select REGMAP_MMIO to avoid the following build error:
spi-meson-spifc.c: undefined reference to `devm_regmap_init_mmio_clk'
Reported-by: Jim Davis <jim.epost@gmail.com>
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Exynos7 SPI controller supports only the auto Selection of
CS toggle mode and Exynos7 SoC includes six SPI controllers.
Add support for these changes in Exynos7 SPI controller driver.
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This is a driver for the Amlogic Meson SPIFC (SPI flash controller),
which is one of the two SPI controllers available on the SoC. It
doesn't support DMA and has a 64-byte unified transmit/receive buffer.
The device is optimized for interfacing with SPI NOR memories and
allows the execution of standard operations such as read, page
program, sector erase, etc. in a simplified way, toggling a bit in a
dedicated register. The driver doesn't use those predefined commands
and relies only on custom transfers.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Add support for the Synchronous Peripheral Flash Interface (SPFI) master
controller found on IMG SoCs. The SPFI controller supports 5 chip-select
lines and single/dual/quad mode SPI transfers.
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
config SPI_BCM53XX needs to depend on BCMA_POSSIBLE and select BCMA.
This fixes below build error:
ERROR: "bcma_driver_unregister" [drivers/spi/spi-bcm53xx.ko] undefined!
ERROR: "__bcma_driver_register" [drivers/spi/spi-bcm53xx.ko] undefined!
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
The support of the Moorestown was removed [1] from kernel long time ago. This
is just a follow up of that change.
[1] http://www.spinics.net/lists/platform-driver-x86/msg02948.html
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
commit dd1053a93f ("spi/drivers: Enable build of drivers with
COMPILE_TEST") allows compile-testing drivers on platforms they're not
meant for.
However, adding "|| COMPILE_TEST" bypasses all other implicit dependencies
assumed by the platform dependencies before, like HAS_DMA.
If NO_DMA=y:
drivers/built-in.o: In function `atmel_spi_dma_unmap_xfer':
drivers/spi/spi-atmel.c:915: undefined reference to `dma_unmap_single'
drivers/spi/spi-atmel.c:918: undefined reference to `dma_unmap_single'
drivers/built-in.o: In function `atmel_spi_next_xfer_data':
drivers/spi/spi-atmel.c:690: undefined reference to `dma_sync_single_for_cpu'
drivers/built-in.o: In function `atmel_spi_dma_map_xfer':
drivers/spi/spi-atmel.c:890: undefined reference to `dma_map_single'
drivers/spi/spi-atmel.c:893: undefined reference to `dma_mapping_error'
drivers/spi/spi-atmel.c:897: undefined reference to `dma_map_single'
drivers/spi/spi-atmel.c:900: undefined reference to `dma_mapping_error'
drivers/spi/spi-atmel.c:902: undefined reference to `dma_unmap_single'
drivers/built-in.o: In function `atmel_spi_probe':
drivers/spi/spi-atmel.c:1540: undefined reference to `dma_alloc_coherent'
drivers/spi/spi-atmel.c:1623: undefined reference to `dma_free_coherent'
drivers/built-in.o: In function `atmel_spi_remove':
drivers/spi/spi-atmel.c:1665: undefined reference to `dma_free_coherent'
drivers/built-in.o: In function `ep93xx_spi_dma_finish':
drivers/spi/spi-ep93xx.c:550: undefined reference to `dma_unmap_sg'
drivers/built-in.o: In function `ep93xx_spi_dma_prepare':
drivers/spi/spi-ep93xx.c:516: undefined reference to `dma_map_sg'
drivers/spi/spi-ep93xx.c:522: undefined reference to `dma_unmap_sg'
drivers/built-in.o: In function `omap2_mcspi_rx_dma':
drivers/spi/spi-omap2-mcspi.c:475: undefined reference to `dma_unmap_single'
drivers/built-in.o: In function `omap2_mcspi_txrx_dma':
drivers/spi/spi-omap2-mcspi.c:589: undefined reference to `dma_unmap_single'
drivers/built-in.o: In function `omap2_mcspi_transfer_one_message':
drivers/spi/spi-omap2-mcspi.c:1202: undefined reference to `dma_map_single'
drivers/spi/spi-omap2-mcspi.c:1204: undefined reference to `dma_mapping_error'
drivers/spi/spi-omap2-mcspi.c:1211: undefined reference to `dma_map_single'
drivers/spi/spi-omap2-mcspi.c:1213: undefined reference to `dma_mapping_error'
drivers/spi/spi-omap2-mcspi.c:1217: undefined reference to `dma_unmap_single'
drivers/built-in.o: In function `tegra_spi_deinit_dma_param':
drivers/spi/spi-tegra114.c:675: undefined reference to `dma_free_coherent'
drivers/built-in.o: In function `tegra_spi_copy_spi_rxbuf_to_client_rxbuf':
drivers/spi/spi-tegra114.c:415: undefined reference to `dma_sync_single_for_cpu'
drivers/spi/spi-tegra114.c:440: undefined reference to `dma_sync_single_for_cpu'
drivers/built-in.o: In function `tegra_spi_copy_client_txbuf_to_spi_txbuf':
drivers/spi/spi-tegra114.c:381: undefined reference to `dma_sync_single_for_cpu'
drivers/spi/spi-tegra114.c:405: undefined reference to `dma_sync_single_for_cpu'
drivers/built-in.o: In function `tegra_spi_start_dma_based_transfer':
drivers/spi/spi-tegra114.c:543: undefined reference to `dma_sync_single_for_cpu'
drivers/built-in.o: In function `tegra_slink_deinit_dma_param':
drivers/spi/spi-tegra20-slink.c:705: undefined reference to `dma_free_coherent'
drivers/built-in.o: In function `tegra_slink_copy_spi_rxbuf_to_client_rxbuf':
drivers/spi/spi-tegra20-slink.c:427: undefined reference to `dma_sync_single_for_cpu'
drivers/spi/spi-tegra20-slink.c:452: undefined reference to `dma_sync_single_for_cpu'
drivers/built-in.o: In function `tegra_slink_copy_client_txbuf_to_spi_txbuf':
drivers/spi/spi-tegra20-slink.c:393: undefined reference to `dma_sync_single_for_cpu'
drivers/spi/spi-tegra20-slink.c:417: undefined reference to `dma_sync_single_for_cpu'
drivers/built-in.o: In function `tegra_slink_start_dma_based_transfer':
drivers/spi/spi-tegra20-slink.c:561: undefined reference to `dma_sync_single_for_cpu'
Add dependencies on HAS_DMA to fix this.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Broadcom 53xx ARM SoCs use bcma bus that contains various cores (AKA
devices). If board has a serial flash, it's connected over SPI and the
bcma bus includes a SPI controller. Example log from such a board:
bus0: Found chip with id 53010, rev 0x00 and package 0x02
(...)
bus0: Core 18 found: SPI flash controller (manuf 0x4BF, id 0x50A, rev 0x01, class 0x0)
This patch adds a bcma driver for SPI core, it registers SPI master
controller and "bcm53xxspiflash" SPI device.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
SPI PXA2XX core layer has dependency on common clock framework
to obtain information on host supported clock rate. Thus, we
setup the clock device in the PCI glue layer to enable PCI mode
host pass in the clock rate information.
Signed-off-by: Chew, Chiau Ee <chiau.ee.chew@intel.com>
Acked-by: Kweh, Hock Leong <hock.leong.kweh@intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
As of commit ab116a4df4 ("dmaengine:
shdma: fix a build failure on platforms with no DMA support"), the DMA
filter function shdma_chan_filter() is sufficiently abstracted to allow
building without DMA support. Hence drop the SH_DMAE_BASE dependency on
SUPERH.
Also increase build coverage by allowing the driver to be enabled if
COMPILE_TEST=y.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@linaro.org>
If NO_DMA=y:
drivers/built-in.o: In function `sh_msiof_release_dma':
spi-sh-msiof.c:(.text+0x23cbfe): undefined reference to `dma_unmap_single'
drivers/built-in.o: In function `sh_msiof_request_dma':
spi-sh-msiof.c:(.text+0x23cd5e): undefined reference to `dma_map_single'
spi-sh-msiof.c:(.text+0x23cd70): undefined reference to `dma_mapping_error'
spi-sh-msiof.c:(.text+0x23cdca): undefined reference to `dma_unmap_single'
drivers/built-in.o: In function `sh_msiof_dma_once':
spi-sh-msiof.c:(.text+0x23d450): undefined reference to `dma_sync_single_for_cpu'
spi-sh-msiof.c:(.text+0x23d5ea): undefined reference to `dma_sync_single_for_cpu'
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@linaro.org>
Without the dependencies for the accessors the driver can be enabled on
architectures where it will fail to build.
Signed-off-by: Mark Brown <broonie@linaro.org>
In order to facilitate understanding, rockchip SPI controller IP design
looks similar in its registers to designware. But IC implementation
is different from designware, So we need a dedicated driver for Rockchip
RK3XXX SoCs integrated SPI. The main differences:
- dma request line: rockchip SPI controller have two DMA request line
for tx and rx.
- Register offset:
RK3288 dw
SPI_CTRLR0 0x0000 0x0000
SPI_CTRLR1 0x0004 0x0004
SPI_SSIENR 0x0008 0x0008
SPI_MWCR NONE 0x000c
SPI_SER 0x000c 0x0010
SPI_BAUDR 0x0010 0x0014
SPI_TXFTLR 0x0014 0x0018
SPI_RXFTLR 0x0018 0x001c
SPI_TXFLR 0x001c 0x0020
SPI_RXFLR 0x0020 0x0024
SPI_SR 0x0024 0x0028
SPI_IPR 0x0028 NONE
SPI_IMR 0x002c 0x002c
SPI_ISR 0x0030 0x0030
SPI_RISR 0x0034 0x0034
SPI_TXOICR NONE 0x0038
SPI_RXOICR NONE 0x003c
SPI_RXUICR NONE 0x0040
SPI_MSTICR NONE 0x0044
SPI_ICR 0x0038 0x0048
SPI_DMACR 0x003c 0x004c
SPI_DMATDLR 0x0040 0x0050
SPI_DMARDLR 0x0044 0x0054
SPI_TXDR 0x0400 NONE
SPI_RXDR 0x0800 NONE
SPI_IDR NONE 0x0058
SPI_VERSION NONE 0x005c
SPI_DR NONE 0x0060
- register configuration:
such as SPI_CTRLRO in rockchip SPI controller:
cr0 = (CR0_BHT_8BIT << CR0_BHT_OFFSET)
| (CR0_SSD_ONE << CR0_SSD_OFFSET);
cr0 |= (rs->n_bytes << CR0_DFS_OFFSET);
cr0 |= ((rs->mode & 0x3) << CR0_SCPH_OFFSET);
cr0 |= (rs->tmode << CR0_XFM_OFFSET);
cr0 |= (rs->type << CR0_FRF_OFFSET);
For more information, see RK3288 chip manual.
- Wait for idle: Must ensure that the FIFO data has been sent out
before the next transfer.
Signed-off-by: addy ke <addy.ke@rock-chips.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
The spi-topcliff-pch driver is for a companion chip to the Intel Atom
E600 series processors. These are 32-bit x86 processors so the driver
is only needed on X86_32. Add COMPILE_TEST as an alternative, so that
the driver can still be build-tested elsewhere.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
Add dependency on ARM in Kconfig.
This is to fix the build error related to _relaxed IO.
Remove dependency on SPI_MASTER because this is already defined
under if SPI_MASTER in Kconfig.
Signed-off-by: Harini Katakam <harinik@xilinx.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Add driver for Cadence SPI controller. This is used in Xilinx Zynq.
Signed-off-by: Harini Katakam <harinik@xilinx.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Spi v3 controller is not only used on Blackfin. So rename it
and use ioread/iowrite api to make it work on other platform.
Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Commit 8fc1b0f87d ("ARM: qcom: Split Qualcomm support into legacy and
multiplatform") removed Kconfig symbol ARCH_MSM_DT. But that commit
left one (optional) dependency on ARCH_MSM_DT untouched.
Three Kconfig symbols used to depend on ARCH_MSM_DT: ARCH_MSM8X60,
ARCH_MSM8960, and ARCH_MSM8974. These three symbols now depend on
ARCH_QCOM. So it appears this driver needs to depend on ARCH_QCOM too.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
This helps increasing build testing coverage.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
The tnetv107x platform is getting removed, so this driver
will not be needed any more.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
This simple SPI master controller is built into xtfpga bitstreams. It
always transfers 16 bit words in SPI mode 0, automatically asserting CS
on transfer start and deasserting on end.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
The only remaining feature of spi-bitbang used by this driver is the
chipselect() callback, which just does conditional GPIO.
This is handled fine by the SPI core's spi_set_cs(), hence switch the
driver to use the core message handling through our own transfer_one()
method.
As the (optional) GPIO CS is no longer deasserted at spi_master.setup()
time (through spi_bitbang_setup() and the spi_bitbang.chipselect()
callback), we now have to take care of that ourselves.
Remove the call to spi_master_put() in sh_msiof_spi_remove(), as our SPI
master is now registered using devm_spi_register_master()
(spi_bitbang_start() uses the non-managed version).
Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Mark Brown <broonie@linaro.org>
This driver uses writel_relaxed() which does not exist in x86, ppc, etc.
Make it depend on ARM && COMPILE_TEST to avoid below build error:
CC [M] drivers/spi/spi-qup.o
drivers/spi/spi-qup.c: In function 'spi_qup_set_state':
drivers/spi/spi-qup.c:180:3: error: implicit declaration of function 'writel_relaxed' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make[2]: *** [drivers/spi/spi-qup.o] Error 1
make[1]: *** [drivers/spi] Error 2
make: *** [drivers] Error 2
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
The older Allwinner SoCs (A10, A13, A10s and A20) all have the same SPI
controller.
Unfortunately, this SPI controller, even though quite similar, is significantly
different from the recently supported A31 SPI controller (different registers
offset, split/merged registers, etc.). Supporting both controllers in a single
driver would be unreasonable, hence the addition of a new driver.
Like its more recent counterpart, it supports DMA, but the driver only does PIO
until we have a dmaengine driver for this platform.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
SPI_IMX is selected by imx_v6_v7_defconfig/imx_v4_v5_defconfig and we don't need
to have a default setting which depends on the IMX_HAVE_PLATFORM_SPI_IMX symbol.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Qualcomm Universal Peripheral (QUP) core is an AHB slave that
provides a common data path (an output FIFO and an input FIFO)
for serial peripheral interface (SPI) mini-core. SPI in master
mode supports up to 50MHz, up to four chip selects, programmable
data path from 4 bits to 32 bits and numerous protocol variants.
Cc: Alok Chauhan <alokc@codeaurora.org>
Cc: Gilad Avidov <gavidov@codeaurora.org>
Cc: Kiran Gunda <kgunda@codeaurora.org>
Cc: Sagar Dharia <sdharia@codeaurora.org>
Cc: dsneddon@codeaurora.org
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Freescale DSPI module will have two endianess in different platform,
but ARM is little endian. So when DSPI in big endian, core in little endian,
readl and writel can not adjust R/W register in this condition.
This patch will remove general readl/writel, and import regmap mechanism.
Data endian will be transfered in regmap APIs.
Documents: dspi add bool "big-endian" in dts node if DSPI module
work in big endian.
Signed-off-by: Chao Fu <b44548@freescale.com>
Reviewed-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Commit 0079aae0f1 ("spi: omap2: Add build dependencies for
writel_relaxed()") added an optional Kconfig dependency on SH. That
Kconfig symbol doesn't exist. Apparently SUPERH was intended. Use that.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
The Allwinner A31 has a new SPI controller IP compared to the older Allwinner
SoCs.
It supports DMA, but the driver only does PIO for now, and DMA will be
supported eventually.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
As of commit 5ce0ba8865 ("spi: rcar: add
Renesas QSPI support on RSPI") the rspi driver handles Renesas QSPI, too,
but this was not reflected in the Kconfig help text.
Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
Since 93abe8e4 (clk: add non CONFIG_HAVE_CLK routines) code using clk.h
like this platform driver needs not depend on HAVE_CLK.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Mark Brown <broonie@linaro.org>
A respun version of the merges for the pull request previously sent with
a few additional fixes. The last two merges were fixed up by hand since
the branches have moved on and currently have the prior merge in them.
Quite a busy release for the SPI subsystem, mostly in cleanups big and
small scattered through the stack rather than anything else:
- New driver for the Broadcom BC63xx HSSPI controller.
- Fix duplicate device registration for ACPI.
- Conversion of s3c64xx to DMAEngine (this pulls in platform and DMA
changes upon which the transiton depends).
- Some small optimisations to reduce the amount of time we hold locks
in the datapath, eliminate some redundant checks and the size of a
spi_transfer.
- Lots of fixes, cleanups and general enhancements to drivers,
especially the rspi and Atmel drivers.
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Merge tag 'spi-v3.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"A respun version of the merges for the pull request previously sent
with a few additional fixes. The last two merges were fixed up by
hand since the branches have moved on and currently have the prior
merge in them.
Quite a busy release for the SPI subsystem, mostly in cleanups big and
small scattered through the stack rather than anything else:
- New driver for the Broadcom BC63xx HSSPI controller
- Fix duplicate device registration for ACPI
- Conversion of s3c64xx to DMAEngine (this pulls in platform and DMA
changes upon which the transiton depends)
- Some small optimisations to reduce the amount of time we hold locks
in the datapath, eliminate some redundant checks and the size of a
spi_transfer
- Lots of fixes, cleanups and general enhancements to drivers,
especially the rspi and Atmel drivers"
* tag 'spi-v3.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (112 commits)
spi: core: Fix transfer failure when master->transfer_one returns positive value
spi: Correct set_cs() documentation
spi: Clarify transfer_one() w.r.t. spi_finalize_current_transfer()
spi: Spelling s/finised/finished/
spi: sc18is602: Convert to use bits_per_word_mask
spi: Remove duplicate code to set default bits_per_word setting
spi/pxa2xx: fix compilation warning when !CONFIG_PM_SLEEP
spi: clps711x: Add MODULE_ALIAS to support module auto-loading
spi: rspi: Add missing clk_disable() calls in error and cleanup paths
spi: rspi: Spelling s/transmition/transmission/
spi: rspi: Add support for specifying CPHA/CPOL
spi/pxa2xx: initialize DMA channels to -1 to prevent inadvertent match
spi: rspi: Add more QSPI register documentation
spi: rspi: Add more RSPI register documentation
spi: rspi: Remove dependency on DMAE for SHMOBILE
spi/s3c64xx: Correct indentation
spi: sh: Use spi_sh_clear_bit() instead of open-coded
spi: bitbang: Grammar s/make to make/to make/
spi: sh-hspi: Spelling s/recive/receive/
spi: core: Improve tx/rx_nbits check comments
...
Mark Brown
Beniamino Galvani
Padmavathi Venna
Andrew Bresticker
Axel Lin
Andy Shevchenko
Geert Uytterhoeven
Rafał Miłecki
Chew, Chiau Ee
Mark Brown
Geert Uytterhoeven
addy ke
Jean Delvare
Harini Katakam
Scott Jiang
Paul Bolle
Arnd Bergmann
Max Filippov
Geert Uytterhoeven
Maxime Ripard
Fabio Estevam
Ivan T. Ivanov
Chao Fu
Baruch Siach
Linus Torvalds