Commit Graph

859 Commits

Author SHA1 Message Date
Angelo Dureghello
610e316d02 drivers: spi: cf_spi: add Kconfig option
This patch adds cf_spi DM Kconfig option.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Angelo Dureghello <angelo@sysam.it>
2019-05-24 08:11:57 -04:00
Tom Rini
8b1d3d19be STM32 MCUs update:
_ Add MPU region for SPI NOR memory mapped region
 _ Add missing QSPI flash compatible for STM32 F7 boards
 _ Update spi-tx-bus-width and spi-rx-bus-width properties
 _ Add QSPI support for STM32F469 Discovery board
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Merge tag 'u-boot-stm32-mcu-20190514' of https://github.com/pchotard/u-boot

STM32 MCUs update:
_ Add MPU region for SPI NOR memory mapped region
_ Add missing QSPI flash compatible for STM32 F7 boards
_ Update spi-tx-bus-width and spi-rx-bus-width properties
_ Add QSPI support for STM32F469 Discovery board
2019-05-15 07:10:32 -04:00
Simon Goldschmidt
27c3e07bcb spi: designware: convert to livetree
Convert 'dw_spi_ofdata_to_platdata' to use 'dev_read_u32_default'
instead of 'fdtdec_get_int' and get rid of DECLARE_GLOBAL_DATA_PTR.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
2019-05-10 22:48:11 +02:00
Simon Goldschmidt
46b633d7b4 spi: cadence_qspi: convert to livetree
Convert 'cadence_spi_ofdata_to_platdata' to use dev_read_* functions to
read driver parameters and 'dev_read_first_subnode'/'ofnode_read_*' to
read flash (child node) parameters.

Tested on socfpga_socrates (socfpga gen5).

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
2019-05-10 22:48:11 +02:00
Tom Rini
504bf790da Merge branch 'master' of git://git.denx.de/u-boot-sunxi
- H6 Beelink GS1 board (Clément)
- Olimex A64-Teres-I board (Jonas)
- sunxi build fix for CONFIG_CMD_PXE|DHCP (Ondrej)
- Change include order (Jagan)
- EPHY clock changes (Jagan)
- EMAC enablement on Cubietruck Plus, BPI-M3 (Chen-Yu Tsai)
2019-05-08 16:21:43 -04:00
Jagan Teki
0cbee8544b spi: atcspi200: Change include order
Like clk_get_by_index, there is requirement for
clk_get_by_index_nodev. In this case to make common
code functionalities for dev and nodev, clk_get_by_index
is trying to get the index of clock by passing ofnode
instead of actual dev like current gpio uclass does.

In these scenarios with current order of include files
the atcspi200_spi driver is unable to find CONFIG_ENV_SIZE.

In file included from arch/nds32/include/asm/u-boot.h:24,
                 from include/dm/of.h:10,
                 from include/dm/ofnode.h:12,
                 from include/clk.h:11,
                 from drivers/spi/atcspi200_spi.c:9:
include/environment.h:145:19: error: 'CONFIG_ENV_SIZE'
undeclared here (not in a function); did you mean 'CONFIG_CMD_XIMG'?
 #define ENV_SIZE (CONFIG_ENV_SIZE - ENV_HEADER_SIZE)

So, fix consists of changing the order of include files
in atcspi200_spi.c to include first common.h file.

Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2019-05-09 00:42:55 +05:30
Marek Vasut
b5b6656794 spi: rpc: Add support for operation without clock framework
Add ifdeffery to allow operation without the clock framework
enabled. This is required on RZ/A1, as it does not have clock
driver yet.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Chris Brandt <chris.brandt@renesas.com>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2019-05-07 05:41:32 +02:00
Patrice Chotard
351d2feffa spi: Kconfig: Add STM32F4 support for STM32_QSPI driver
Allow to select STM32_QSPI driver on STM32F4 SoCs.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2019-05-06 09:50:28 +02:00
Tom Rini
86f578ee85 - mscc: small fixes, enhance network support for Serval, Luton amd
Ocelot
 - mt7620: rename arch to more generic name mtmips
 - mips: pass initrd addresses via DT as physical addresses
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Merge tag 'mips-pull-2019-05-03' of git://git.denx.de/u-boot-mips

- mscc: small fixes, enhance network support for Serval, Luton and Ocelot
- mt7620: rename arch to more generic name mtmips
- mips: pass initrd addresses via DT as physical addresses
2019-05-04 20:02:42 -04:00
Weijie Gao
16b94903e2 mips: rename mach-mt7620 to mach-mtmips
Currently mach-mt7620 contains only support for mt7628. To avoid confusion,
rename mach-mt7620 to mach-mtmips, which means MediaTek MIPS platforms.
MT7620 and MT7628 should be distinguished by SOC_MT7620 and SOC_MT7628
because they do not share the same lowlevel codes.

Dependencies of four drivers are changed to SOC_MT7628 as these drivers
are only used by MT7628.

Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2019-05-03 16:43:11 +02:00
Kever Yang
15f09a1a83 rockchip: use 'arch-rockchip' as header file path
Rockchip use 'arch-rockchip' instead of arch-$(SOC) as common
header file path, so that we can get the correct path directly.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-05-01 00:00:05 +02:00
Philipp Tomsich
2236149e49 rockchip: spi: make optimised receive-handler unaligned-safe
To support unaligned output buffers (i.e. 'in' in the terminology of
the SPI framework), this change splits each 16bit FIFO element after
reading and writes them to memory in two 8bit transactions.  With this
change, we can now always use the optimised mode for receive-only
transcations independent on the alignment of the target buffer.

Given that we'll run with caches on, the impact should be negligible:
as expected, this has no adverse impact on throughput if running with
a 960MHz LPLL configuration.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-05-01 00:00:04 +02:00
Philipp Tomsich
51a644a1b8 rockchip: spi: add driver-data and a 'rxonly_manages_fifo' flag
The SPI controller's documentation (I only had access to the RK3399,
RK3368 and PX30 TRMs) specifies that, when operating in master-mode,
the controller will stop the SCLK to avoid RXFIFO overruns and TXFIFO
underruns.  Looks like my worries that we'd need to support DMA-330
(aka PL330) to make any further progress were unfounded.

This adds a driver-data structure to capture hardware-specific
settings of individual controller instances (after all, we don't know
if all versions are well-behaved) and adds a 'master_manages_fifo'
flag to it.  The first use of said flag is in the optimised
receive-only transfer-handler, which can now request 64Kframe
(i.e. 128KByte) bursts of data on each reprogramming of CTRLR1
(i.e. every time through the loop).

This improves throughput to 46.85MBit/s (a 94.65% bus-utilisation).

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-05-01 00:00:04 +02:00
Philipp Tomsich
8aa6c921f7 rockchip: spi: add optimised receive-only implementation
For the RK3399-Q7 we recommend storing SPL and u-boot.itb in the
on-module 32MBit (and sometimes even larger, if requested as part of a
configure-to-order configuration) SPI-NOR flash that is clocked for a
bitrate of 49.5MBit/s and connected in a single-IO configuration (the
RK3399 only supports single-IO for SPI).

Unfortunately, the existing SPI driver is excruciatingly slow at
reading out large chunks of data (in fact it is just as slow for small
chunks of data, but the overheads of the driver-framework make it less
noticeable): before this change, the throughput on a 4MB read from
SPI-NOR is 8.47MBit/s which equates a 17.11% bus-utilisation.

To improve on this, this commit adds an optimised receive-only
transfer (i.e.: out == NULL) handler that hooks into the main transfer
function and processes data in 16bit frames (utilising the full with
of each FIFO element).  As of now, the receive-only handler requires
the in-buffer to be 16bit aligned.  Any lingering data (i.e. either if
the in-buffer was not 16-bit aligned or if an odd number of bytes are
to be received) will be handled by the original 8bit reader/wirter.

Given that the SPI controller's documentation does not guarantuee any
interlocking between the RXFIFO and the master SCLK, the transfer loop
will be restarted for each chunk of 32 frames (i.e. 64 bytes).

With this new receive-only transfer handler, the throughput for a 4MB
read increases to 36.28MBit/s (i.e. 73.29% bus-utilisation): this is a
4x improvement over the baseline.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reported-by: Klaus Goger <klaus.goger@theobroma-systems.com>

Series-Cc: Klaus Goger <klaus.goger@theobroma-systems.com>
Series-Cc: Christoph Muellner <christoph.muellner@theobroma-systems.com>
2019-05-01 00:00:04 +02:00
Philipp Tomsich
7e0e5c552f rockchip: spi: only wait for completion, if transmitting
The logic in the main transmit loop took a bit of reading the TRM to
fully understand (due to silent assumptions based in internal logic):
the "wait until idle" at the end of each iteration through the loop is
required for the transmit-path as each clearing of the ENA register
(to update run-length in the CTRLR1 register) will implicitly flush
the FIFOs... transmisson can therefore not overlap loop iterations.

This change adds a comment to clarify the reason/need for waiting
until the controller becomes idle and wraps the entire check into an
'if (out)' to make it clear that this is required for transfers with a
transmit-component only (for transfers having a receive-component,
completion of the transmit-side is trivially ensured by having
received the correct number of bytes).

The change does not increase execution time measurably in any of my
tests.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-05-01 00:00:04 +02:00
Philipp Tomsich
b6101e906f rockchip: spi: consistently use false/true with rkspi_enable_chip
While rkspi_enable_chip is called with true/false everywhere else in
the file, one call site uses '0' to denot 'false'.
This change this one parameter to 'false' and effects consistency.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-05-01 00:00:04 +02:00
Philipp Tomsich
e647decdd9 rockchip: spi: fix off-by-one in chunk size computation
The maximum transfer length (in a single transaction) for the Rockchip
SPI controller is 64Kframes (i.e. 0x10000 frames) of 8bit or 16bit
frames and is encoded as (num_frames - 1) in CTRLR1.  The existing
code subtracted the "minus 1" twice for a maximum transfer length of
0xffff (64K - 1) frames.

While this is not strictly an error (the existing code is correct, but
leads to a bit of head-scrating), fix this off-by-one situation.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-05-01 00:00:04 +02:00
Philipp Tomsich
0e661b6df0 rockchip: spi: remove unused code and fields in priv
Even though the priv-structure and the claim-bus function contain
logic for 16bit frames and for unidirectional transfer modes, neither
of these is used anywhere in the driver.

This removes the unused (as in "has no effect") logic and fields.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-05-01 00:00:04 +02:00
Philipp Tomsich
f92cf0adca rockchip: spi: add debug message for delay in CS toggle
In analysing delays introduced for large SPI reads, the absence of any
indication when a delay was inserted (to ensure the CS toggling is
observed by devices) became apparent.

Add an additional debug-only debug message to record the insertion and
duration of any delay (note that the debug-message will cause a delay
on-top of the delay-duration).

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-05-01 00:00:04 +02:00
Tom Rini
b4fde1633e Merge branch 'master' of git://git.denx.de/u-boot-socfpga
- Various stratix10, gen5 updates
2019-04-21 18:59:30 -04:00
Simon Goldschmidt
ac7e14ae0d spi: cadence_qspi: add reset handling
This adds reset handling to the cadence qspi driver.

For backwards compatibility, only a warning is printed when failing to
get reset handles.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
2019-04-17 22:20:17 +02:00
Tom Rini
36c97c4db7 Merge branch 'master' of git://git.denx.de/u-boot-spi
- drop non-DM code from ti_qspi
- support spi-mem for ti_qspi
2019-04-17 09:21:32 -04:00
Vignesh Raghavendra
4c96c61216 spi: ti_qspi: Convert to spi-mem ops
Convert driver to use  spi-mem ops in order to support accelerated MMIO
flash interface in generic way and for better performance.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
2019-04-17 17:43:54 +05:30
Vignesh Raghavendra
61ae9782ef spi: ti_qspi: Drop non DM code
Now that all boards using TI QSPI have moved to DM and DT, drop non DM
code completely.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
[jagan: update MIGRATION.txt, rebase config_whitelist.txt]
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2019-04-17 17:43:19 +05:30
Siva Durga Prasad Paladugu
1a474381b6 spi: zynqmp_gqspi: Fix tap delay values at 100MHz and 150MHz
This patch fixes the tap delay values to be set at 100MHz and 150MHz
as per TRM by fixing the if condition to use <= instead of <.

Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2019-04-16 11:51:34 +02:00
Tom Rini
216800acf1 Merge branch 'master' of git://git.denx.de/u-boot-spi
Conflicts:
	arch/arm/dts/armada-385-amc.dts
	arch/arm/dts/armada-xp-theadorable.dts
	arch/arm/dts/stm32mp157c-ev1-u-boot.dtsi

Signed-off-by: Tom Rini <trini@konsulko.com>
2019-04-14 00:03:06 -04:00
Christophe Kerello
321d153238 spi: stm32_qspi: move to exec_op
We are facing issues in the driver since SPI NOR framework has moved
on SPI MEM framework, and SPI NAND framework is not running properly
with the current driver.

To be able to solve issues met on SPI NOR Flashes and to be able to
support SPI NAND Flashes, the driver has been reworked. We are now using
exec_op ops instead of using xfer ops.

Thanks to this rework, the driver has been successfully tested with:
 - mx66l51235l SPI NOR Flash on stm32f746 SOC
 - n25q128a SPI NOR Flash on stm32f769 SOC
 - mx66l51235l SPI NOR Flash on stm32mp1 SOC
 - mt29f2g01abagd SPI NAND Flash on stm32mp1 SOC

Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
Tested-by: Patrick DELAUNAY <patrick.delaunay@st.com>
Reviewed-by: Patrick DELAUNAY <patrick.delaunay@st.com>
2019-04-12 16:09:13 +02:00
Patrick Delaunay
b0cc1b846f dm: spi: Read default speed and mode values from DT
This patch update the behavior introduced by
commit 96907c0fe5 ("dm: spi: Read default speed and mode values from DT")

In case of DT boot, don't read default speed and mode for SPI from
CONFIG_* but instead read from DT node. This will make sure that boards
with multiple SPI/QSPI controllers can be probed at different
bus frequencies and SPI modes.

Remove also use in boards of the value speed=0 (no more supported)
for ENV in SPI by using CONFIG_ENV_SPI_MAX_HZ=0.

DT values will be always used when available (full DM support of
SPI slave with available DT node) even if speed and mode are requested;
for example in splash screen support (in splash_sf_read_raw)
or in SPL boot (in spl_spi_load_image).
The caller of spi_get_bus_and_cs() no more need to force speed=0.

But the current behavior don't change if the SPI slave is not
present (device with generic driver is created automatically)
or if platdata is used (CONFIG_OF_PLATDATA).

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
2019-04-12 11:54:50 +05:30
Jared Bents
40264c0ca8 spi: fsl_dspi fix to stop extra transmissions
Update to prevent a byte of zeros being transmitted between
each byte in the tx buffer when providing both a tx buffer
and a rx buffer.

Signed-off-by: Jared Bents <jared.bents@rockwellcollins.com>
Cc: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
2019-04-12 11:24:24 +05:30
Bernhard Messerklinger
567a3eb795 spi: spi-mem: Check if exec_op function is set before calling it
Add check if exec_op is set before calling it.
At the moment it is called unconditionally, which leads to a crash if it
is not set correctly.

Signed-off-by: Bernhard Messerklinger <bernhard.messerklinger@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2019-04-12 11:17:39 +05:30
Ley Foon Tan
7eece32812 spi: cadence_qspi: Add quad write support
Use quad write if SPI_TX_QUAD flag is set.

Tested quad write on Stratix 10 SoC board (Micron
serial NOR flash, mt25qu02g)

Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2019-04-12 10:54:03 +05:30
Jagan Teki
a51cd54eff spi: Rename sun4i_spi.c into spi-sunxi.c
Now the same SPI controller driver is reusable in all Allwinner
SoC variants, so rename the existing sun4i_spi.c into spi-sunxi.c
which eventually look like a common sunxi driver.

Also update the function, variable, structure names in driver from
sun4i into sunxi.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2019-03-04 18:08:56 +05:30
Jagan Teki
903e7cf37c spi: sun4i: Driver cleanup
- drop unused macros.
- use base instead of base_addr, for better code readability
- move .probe and .ofdata_to_platdata functions in required
  places to add platdata support in future.
- use sentinel sun4i_spi_ids.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2019-03-04 18:08:56 +05:30
Jagan Teki
853f4511e9 spi: sun4: Add A31 spi controller support
The usual SPI transmission protocol in Allwinner A10 and A31
controllers share similar context with minimal changes in register
offsets along with few additional register bits on A31.

So, add A31 spi controller support in existing sun4i_spi with A31
specific register offsets and bits.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2019-03-04 18:08:56 +05:30
Jagan Teki
8d71a19edd spi: sun4i: Add CLK support
Add CLK support to enable AHB and MOD SPI clocks on sun4i_spi driver.

Clock disablement could be done while releasing the bus transfer, but
the existing code doesn't disable the clocks it only taken care of clock
enablement globally in probe.

So to make a proper clock handling, the clocks should enable it in claim
and disable it in release.

This patch would also do that change, by enable and disable clock in
proper order.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
2019-03-04 18:08:56 +05:30
Jagan Teki
178fbd243d spi: sun4i: Support fifo_depth via drvdata
Support fifo_depth via drvdata instead of macro definition, this would
eventually reduce another macro definition for new SPI controller fifo
depth support addition.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
2019-03-04 18:08:56 +05:30
Jagan Teki
8d9bf46847 spi: sun4i: Access registers and bits via enum offsets
Allwinner support two different SPI controllers one for A10 and
another for A31 with minimal changes in register offsets and
respective register bits, but the logic for accessing the SPI
master via SPI slave remains nearly similar.

Add enum offsets for register set and register bits, so-that
it can access both classes of SPI controllers.

Assign same control register for global, transfer and fifo control
registers to make the same code compatible with A31 SPI controller.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Stefan Mavrodiev <stefan@olimex.com> # A20-SOM204
2019-03-04 18:08:56 +05:30
Jagan Teki
8cbf09ba1c spi: sun4i: Simplify reg writes using set/clrbits_le32
Update the existing register writes using setbits_le32 and
clrbits_le32 in required places.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2019-03-04 18:08:56 +05:30
Jagan Teki
6cb6aa602b spi: sun4i: Poll for rxfifo to be filled up
To drain rx fifo the fifo need to poll for how much data has
been filled up in rx fifo.

To achieve this, the current code is using wait_for_bit logic
on control register with exchange burst mode mask, which is not
a proper way of waiting for fifo filled up.

So, add code for polling rxfifo to be filled up using fifo
status register.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
2019-03-04 18:08:56 +05:30
Horatiu.Vultur@microchip.com
1b77de4476 spi: designware: Change include order
With current order of include files, the file designware_spi.c
can't see that the struct global_data has the member
board_type when CONFIG_BOARD_TYPES is defined. By not seeing this
then all the members are shifted in the struct global_data.
So when the driver is trying to read from device tree blob, it
would pass the wrong address to the function 'fdtdev_get_int'.
This will make to use the default frequency 500000.

The fix consists of changing the order of include files in
designware_spi.c to include first common.h file.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2019-03-04 17:56:26 +05:30
David Rivshin
b8b88e6aff spi: omap3: fix set_wordlen() reading from incorrect address for CHCONF
_omap3_spi_set_wordlen() indexed the regs->channel[] array with the
old wordlen (instead of the chipselect number) when reading the current
CHCONF register value. This meant it read from the wrong memory location,
modified that value, and then wrote it back to the correct CHCONF
register. The end result is that most slave configuration settings would
be lost, such as clock divisor, clock/chipselect polarities, etc.

Fixes: 77b8d04854 ("spi: omap3: Convert to driver model")
Signed-off-by: David Rivshin <drivshin@allworx.com>
2019-02-28 14:21:46 -05:00
Michal Simek
f3976cc61f spi: zynqmp_gqspi: Enable versal compatible string
Trivial patch.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2019-02-14 14:31:09 +01:00
Vignesh R
6d82517836 configs: Don't use SPI_FLASH_BAR as default
Now that new SPI NOR layer uses stateless 4 byte opcodes by default,
don't enable SPI_FLASH_BAR. For SPI controllers that cannot support
4-byte addressing, (stm32_qspi.c, fsl_qspi.c, mtk_qspi.c, ich.c,
renesas_rpc_spi.c) add an imply clause to enable SPI_FLASH_BAR so as to
not break functionality.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Tested-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Tested-by: Stefan Roese <sr@denx.de>
Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com> #zynq-microzed
2019-02-07 15:33:22 +05:30
Vignesh R
c4e8862308 mtd: spi: Switch to new SPI NOR framework
Switch spi_flash_* interfaces to call into new SPI NOR framework via MTD
layer. Fix up sf_dataflash to work in legacy way. And update sandbox to
use new interfaces/definitions

Signed-off-by: Vignesh R <vigneshr@ti.com>
Tested-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Tested-by: Stefan Roese <sr@denx.de>
Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com> #zynq-microzed
2019-02-07 15:33:21 +05:30
Vignesh R
6430eea639 spi: Add non DM version of SPI_MEM
Add non DM version of SPI_MEM to support easy migration to new SPI NOR
framework. This can be removed once DM_SPI conversion is complete.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Tested-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Tested-by: Stefan Roese <sr@denx.de>
Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com> #zynq-microzed
2019-02-07 15:33:21 +05:30
Vignesh R
76094485e4 spi: spi-mem: Claim SPI bus before spi mem access
It is necessary to call spi_claim_bus() before starting any SPI
transactions and this restriction would also apply when calling spi-mem
operations. Therefore claim and release bus before requesting transfer
via exec_op.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Tested-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Tested-by: Stefan Roese <sr@denx.de>
Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com> #zynq-microzed
2019-02-07 15:33:21 +05:30
Vignesh R
12563f768e spi: spi-mem: Extend spi_mem_adjust_op_size() to honor max xfer size
Extend spi_mem_adjust_op_size() to take spi->max_write_size and
spi->max_read_size into account.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Tested-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Tested-by: Stefan Roese <sr@denx.de>
Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com> #zynq-microzed
2019-02-07 15:33:21 +05:30
Vignesh R
6d373e523f spi: spi-mem: Allow use of spi_mem_exec_op for all SPI modes
SPI controllers support all types of SPI modes including dual/quad bus
widths. Therefore remove constraint wrt SPI mode from spi-mem layer.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Tested-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Tested-by: Stefan Roese <sr@denx.de>
Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com> #zynq-microzed
2019-02-07 15:33:21 +05:30
Ye Li
65a106e36f spi: mxc_spi: Fix build warning on ARM64 platforms
When building mxc_spi driver on ARM64 platforms, get below build warnings.
Fix it in this patch.

In file included from include/common.h:48:0,
 from drivers/spi/mxc_spi.c:9:
 drivers/spi/mxc_spi.c: In function ‘spi_xchg_single’:
drivers/spi/mxc_spi.c:232:21: warning: cast from pointer to integer of
different size [-Wpointer-to-int-cast]
 _func_, bitlen, (u32)dout, (u32)din);
 ^
 include/log.h:135:26: note: in definition of macro ‘debug_cond’
printf(pr_fmt(fmt), ##args); \
 ^~~~
 drivers/spi/mxc_spi.c:231:2: note: in expansion of macro ‘debug’
debug("%s: bitlen %d dout 0x%x din 0x%x\n",
 ^~~~~
 drivers/spi/mxc_spi.c:232:32: warning: cast from pointer to integer of
different size [-Wpointer-to-int-cast]
 _func_, bitlen, (u32)dout, (u32)din);
 ^
 include/log.h:135:26: note: in definition of macro ‘debug_cond’
printf(pr_fmt(fmt), ##args); \
 ^~~~
 drivers/spi/mxc_spi.c:231:2: note: in expansion of macro ‘debug’
debug("%s: bitlen %d dout 0x%x din 0x%x\n",
 ^~~~~

Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
2019-01-28 20:35:47 +01:00
Lars Povlsen
fd6e0b0525 mips: spi: mscc: Add fast bitbang SPI driver
This patch add a new SPI driver for MSCC SOCs that does not sport the
designware SPI hardware controller.

Performance gain: 7.664 seconds vs. 17.633 for 1 Mbyte write.

Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2019-01-16 13:56:43 +01:00
Stefan Mavrodiev
5c1a87de58 spi: sun4i: Add rx_buf NULL pointer check
Current driver doesn't check if the destination pointer is NULL.
This cause the data from the FIFO to be stored inside the internal
SDRAM ( address 0 ).

The patch add simple check if the destination pointer is NULL.

Signed-off-by: Stefan Mavrodiev <stefan@olimex.com>
Acked-by: Jagan Teki <jagan@openedev.com>
[jagan: fix commit message]
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2019-01-02 00:54:05 +05:30
Gregory CLEMENT
bea91b0c9b DW SPI: Allow to overload the management of the external CS
On some platforms, as the Ocelot ones, when wanting to control the CS
through software, it is not possible to do it through the GPIO
controller. Indeed, this signal is managed through a dedicated range of
registers inside the SoC..

By declaring the external_cs_manage function as weak, it is possible to
manage the CS at platform level and then using the appropriate registers.

Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
2018-12-19 15:23:01 +01:00
Tom Rini
9450ab2ba8 Merge branch 'master' of git://git.denx.de/u-boot-spi
- Various MTD fixes from Boris
- Zap various unused / legacy paths.
- pxa3xx NAND update from Miquel

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-12-05 15:06:24 -05:00
Christophe Leroy
fb0204e48b spi, mpc8xx: migrate to DM_SPI
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2018-12-03 10:44:10 -05:00
Simon Goldschmidt
2a3a99932b spi: cadence_qspi: use "cdns,qspi-nor" as compatible
Linux uses "cdns,qspi-nor" as compatible string for the cadence
qspi driver, so change driver, docs and all device trees.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
2018-11-29 12:45:15 +01:00
Christophe Leroy
f34d0315e9 spi: mpc8xx: Migrate to DM_SPI
Drop non-dm code and migrate into DM_SPI.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
[jagan: Move config menu in DM_SPI area]
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2018-11-27 21:06:53 +05:30
Jagan Teki
e2cae51472 spi: Remove unused spi_init
Remove spi_init definition which never used on
respective code since from many years.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2018-11-27 21:06:53 +05:30
Jagan Teki
3ae6030cf9 dm: platform_data: spi: s/pl022_spi.h/spi_pl022.h
Rename platform_data include file as spi_pl022.h from pl022_spi.h,
this is generic notation used for spi platdata include files.

Acked-by: Quentin Schulz <quentin.schulz@bootlin.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2018-11-27 21:06:46 +05:30
Jagan Teki
e6f76d555e spi: pl022: Drop unnecessary include files
This patch can drop unnecessary include files in
pl022_spi driver.

Acked-by: Quentin Schulz <quentin.schulz@bootlin.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2018-11-27 21:06:37 +05:30
Jagan Teki
3deb1f731d spi: pl022: Simplify platdata code
pl022 spi driver support both OF_CONTROL and PLATDATA, this
patch is trying to simplify the code that differentiating
platdata vs of_control.
- Move OF_CONTROL code at one place
- Handle clock setup code directly in pl022_spi_ofdata_to_platdata

Acked-by: Quentin Schulz <quentin.schulz@bootlin.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2018-11-27 21:06:19 +05:30
Guochun Mao
052cafd2a5 spi: mtk_qspi: add qspi driver for MT7629 SoC
This patch adds MT7629 qspi driver for accessing SPI NOR flash.

Signed-off-by: Guochun Mao <guochun.mao@mediatek.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-11-24 14:41:12 +05:30
Neil Armstrong
9d26506a9c spi: Add Amlogic Meson SPI Flash Controller driver
The Amlogic Meson SoCs embeds a Flash oriented SPI Controller name SPIFC.
This driver, ported from the Linux meson-spi-spifc driver, add support
for this controller on the Amlogic Meson GX SoCs in U-Boot.

Tested-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2018-11-24 14:41:12 +05:30
Simon Goldschmidt
12bfb2e05f dm: spi: prevent setting a speed of 0 Hz
When the device tree is missing a correct spi slave description below
the bus (compatible "spi-flash" or spi-max-frequency are missing),
the 'set_speed' callback can be called with 'speed' == 0 Hz.
At least with cadence qspi, this leads to a division by zero.

Prevent this by initializing speed to 100 kHz in this case (same
fallback value as is done in 'dm_spi_claim_bus') and issue a warning
to console.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-11-20 19:14:22 -07:00
Michal Simek
ec48b6c991 arm64: versal: Add support for new Xilinx Versal ACAPs
Xilinx is introducing Versal, an adaptive compute acceleration platform
(ACAP), built on 7nm FinFET process technology. Versal ACAPs combine
Scalar Processing Engines, Adaptable Hardware Engines, and Intelligent
Engines with leading-edge memory and interfacing technologies to deliver
powerful heterogeneous acceleration for any application. The Versal AI
Core series has five devices, offering 128 to 400 AI Engines. The series
includes dual-core Arm Cortex™-A72 application processors, dual-core Arm
Cortex-R5 real-time processors, 256KB of on-chip memory with ECC, more
than 1,900 DSP engines optimized for high-precision floating point with
low latency.

The patch is adding necessary infrastructure in place without enabling
platform which is done in separate patch.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-10-16 16:53:21 +02:00
Tom Rini
e6cd05e502 Merge branch 'master' of git://git.denx.de/u-boot-spi 2018-10-12 11:54:13 -04:00
Jagan Teki
ba3c22bf18 spi: davinci: Add platdata support
Davanci spi driver has DM support already, this patch
add support for platdata so-that SPL can use it for
low foot-print.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Adam Ford <aford173@gmail.com>
2018-10-10 11:35:06 +05:30
Simon Glass
5e24a2ef8b dm: spi: Add logging of some return values
When SPI flash operations fail it is helpful to be able to see the error
codes and where they are generated. Add logging to capture this
information for read operations.

Signed-off-by: Simon Glass <sjg@chromium.org>
2018-10-09 04:40:27 -06:00
Simon Glass
c3aed5db59 sandbox: spi: Add more logging
Add logging to aid debugging features in these drivers. Also drop some
code in sandbox_spi_xfer() which is not used.

Signed-off-by: Simon Glass <sjg@chromium.org>
2018-10-09 04:40:27 -06:00
Stefan Roese
5eee9dee41 spi: Add SPI driver for MT76xx SoCs
This patch adds the SPI driver for the MediaTek MT7688 SoC (and
derivates). Its been tested on the LinkIt Smart 7688 and the Gardena
Smart Gateway with and SPI NOR on CS0 and on the Gardena Smart
Gateway additionally with an SPI NAND on CS1.

Note that the SPI controller only supports a max transfer size of 32
bytes. This driver implementes a workaround to enable bigger xfer
sizes to speed up the transfer especially for the SPI NAND support.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Jagan Teki <jagan@openedev.com>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Piotr Dymacz <pepe2k@gmail.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2018-10-04 18:27:28 +05:30
Tom Rini
592cd5defd Merge branch 'master' of git://git.denx.de/u-boot-spi
This is the PR for SPI-NAND changes along with few spi changes.

[trini: Re-sync changes for ls1012afrwy_qspi*_defconfig]
Signed-off-by: Tom Rini <trini@konsulko.com>
2018-10-02 17:01:46 -04:00
Marek Vasut
b3bec25256 spi: sh_qspi: Add DM support to SH QSPI driver
Add DM support to the SH QSPI driver while retaining non-DM support.
The later is required as this driver is used in SPL which has a size
limitation of 16 kiB.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
[jagan: use proper commit head]
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-10-02 22:14:59 +05:30
Ashish Kumar
4ccb2f2115 driver/spi: fsl_qspi: Remove non-DM stuff
Convert fsl_qspi.c to complete DM mode.

Signed-off-by: Ashish Kumar <Ashish.Kumar@nxp.com>
Tested-by: Rajat Srivastava <rajat.srivastava@nxp.com>
Tested-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-10-02 22:13:58 +05:30
Ley Foon Tan
6ac5909f51 spi: designware_spi: Add reset ctrl to driver
Add code to reset all reset signals as in SPI DT node. A reset property
is an optional feature, so only print out a warning and do not fail if a
reset property is not present.

If a reset property is discovered, then use it to deassert, thus
bringing the IP out of reset.

Release reset when _remove().

Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
Acked-by: Marek Vasut <marex@denx.de>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-10-02 22:13:58 +05:30
Quentin Schulz
8a4791fa08 spi: add support for ARM PL022 SPI controller
This adds support for the ARM PL022 SPI controller for the standard
variant (0x00041022) which has a 16bit wide and 8 locations deep TX/RX
FIFO.

A few parts were borrowed from the Linux kernel driver.

Cc: Armando Visconti <armando.visconti@st.com>
Cc: Vipin Kumar <vipin.kumar@st.com>
Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com>
2018-09-25 21:49:18 -04:00
Boris Brezillon
d13f5b254a 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>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Jagan Teki <jagan@openedev.com>
2018-09-20 20:10:49 +05:30
Stefan Mavrodiev
7f25d81797 arm: sunxi: Allwinner A10 SPI driver
Add spi driver for sun4i, sun5i and sun7i SoCs. The driver is
adapted from mailine kernel.

Signed-off-by: Stefan Mavrodiev <stefan@olimex.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-08-03 11:14:08 +05:30
Chris Packham
4f4dde0a62 spi: kirkwood: add orion-spi compatible string
This matches the compatible string used by the Linux kernel. This will
allow u-boot to use the same device tree files.

Signed-off-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
[jagan: use armada instead of orion on .data]
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2018-08-03 11:14:02 +05:30
Jagan Teki
f5ff46f6e5 spi: kirkwood: Get drvdata in .ofdata_to_platdata
Get the is_errata_50mhz_ac in .ofdata_to_platdata, and
reuse it in .set_mode this can eventually initialized
dt code at once and adding room to add platdata.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2018-08-03 11:09:53 +05:30
Christophe Kerello
d68b6ad138 spi: stm32_qspi: rework mode management
This patch solves quad read issue with Macronix/Micron spi nor.

Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-07-23 14:33:21 -04:00
Christophe Kerello
ceff933e1e spi: stm32_qspi: assign functional operation mode in _stm32_qspi_gen_ccr
This patch assigns the functional operation mode in _stm32_qspi_gen_ccr
function.

Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-07-23 14:33:21 -04:00
Siva Durga Prasad Paladugu
22cca1730e spi: zynqmp_gqspi: Add support for ZynqMP qspi driver
This patch adds qspi driver support for ZynqMP SoC. This
driver is responsible for communicating with qspi flash
devices.

Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
[jagan: removed GQSPI_MIO_NUM_ macros]
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-07-16 14:01:47 +05:30
Vipul Kumar
6e9d9fcb4c spi: xilinx_spi: convert to livetree
Update the xilinx spi driver to support a live tree.

Signed-off-by: Vipul Kumar <vipul.kumar@xilinx.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-07-16 14:01:20 +05:30
Vipul Kumar
83ce646943 spi: xilinx_spi: Added support to read JEDEC-id twice at the boot time
This patch is for the startup block issue in the spi controller.
SPI clock is passing through STARTUP block to FLASH. STARTUP block
don't provide clock as soon as QSPI provides command. So, first
command fails.

This patch added support to read JEDEC id in xilinx_spi_xfer ().

Signed-off-by: Vipul Kumar <vipul.kumar@xilinx.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-07-16 14:01:20 +05:30
Vipul Kumar
0c0de58f7b spi: xilinx_spi: Modify transfer logic xilinx_spi_xfer() function
This patch modify xilinx_spi_xfer() function and add rxfifo() and
txfifo() functions to add the modularity so that these functions
can be used by other functions within the same file.

This patch also added support to read fifo_size from dts.

Signed-off-by: Vipul Kumar <vipul.kumar@xilinx.com>
Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-07-16 14:01:20 +05:30
Michal Simek
4e7c1a2651 spi: xilinx: Read reg base address from DTS file
This patch added support to read register base address from DTS file.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Vipul Kumar <vipul.kumar@xilinx.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-07-16 14:01:20 +05:30
Ley Foon Tan
8b71e46cea spi: cadence_qspi: Fix warning cast from pointer to integer of different size
Use "%p" to print cmdbuf.

Compilation warning as below:

  CC      spl/drivers/spi/cadence_qspi_apb.o
  LD      spl/lib/built-in.o
drivers/spi/cadence_qspi_apb.c: In function ‘cadence_qspi_apb_indirect_write_setup’:
drivers/spi/cadence_qspi_apb.c:696:18: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
          cmdlen, (unsigned int)cmdbuf);

Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
Acked-by: Marek Vasut <marex@denx.de>
2018-07-12 09:22:11 +02:00
Ley Foon Tan
9bd39dd8e5 spi: cadence_qspi: Fix compilation warning
Use "%zu" for size_t data type.

Compilation warning as below:

In file included from include/linux/bug.h:7:0,
                 from include/common.h:26,
                 from drivers/spi/cadence_qspi.c:8:
drivers/spi/cadence_qspi.c: In function ‘cadence_spi_xfer’:
drivers/spi/cadence_qspi.c:211:8: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘size_t {aka long unsigned int}’ [-Wformat=]
  debug("%s: len=%d [bytes]\n", __func__, data_bytes);
        ^
include/linux/printk.h:37:21: note: in definition of macro ‘pr_fmt’
 #define pr_fmt(fmt) fmt
                     ^~~
include/log.h:142:2: note: in expansion of macro ‘debug_cond’
  debug_cond(_DEBUG, fmt, ##args)
  ^~~~~~~~~~
drivers/spi/cadence_qspi.c:211:2: note: in expansion of macro ‘debug’
  debug("%s: len=%d [bytes]\n", __func__, data_bytes);

Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
Acked-by: Marek Vasut <marex@denx.de>
2018-07-12 09:22:11 +02:00
Thomas Fitzsimmons
894c3ad27f board: arm: Add support for Broadcom BCM7445
Add support for loading U-Boot on the Broadcom 7445 SoC.  This port
assumes Broadcom's BOLT bootloader is acting as the second stage
bootloader, and U-Boot is acting as the third stage bootloader, loaded
as an ELF program by BOLT.

Signed-off-by: Thomas Fitzsimmons <fitzsim@fitzsim.org>
Cc: Stefan Roese <sr@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
2018-07-10 16:55:57 -04:00
Hannes Schmelzer
c0eaffa039 spi: omap3: fix claim/release bus within DM
The claim/release bus function must not reset the whole SPI core because
settings regarding wordlen, clock-frequency and so on made by
set_wordlen, set_mode, set_speed get lost with this action. Resulting in
a non-functional SPI.

Without DM the failure didn't came up since after the spi_reset within
claim bus all the setup (wordlen, mode, ...) was called, in DM they are
called by the spi uclass.

We change now the things as following for having a working SPI instance
in DM:

- move the spi_reset(...) to the probe call in DM for having a known
hardware state after probe. Without DM we don't have a probe call, so we
issue the reset as before during the claim_bus call.

- in release bus we just reset the modulctrl to the reset-value (spi-
slave)

Signed-off-by: Hannes Schmelzer <oe5hpm@oevsv.at>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-06-28 19:54:10 +05:30
Hannes Schmelzer
9cddf70ead spi: omap3: fix set_speed and set_mode dm callbacks
commit 8480792287
("spi: omap3: Skip set_mode, set_speed from claim") did break SPI
support on my AM335x board.

The named commit:

- ignored the responsible arguments (speed, mode)
The set speed/mode function must use the supplied function arguments to
work properly. With this commit we take those arguments and transfer
them to the priv-data.

- used wrong udevice pointer for getting priv data
the udevice-pointer within function argument is already the spi-bus
device, so it is wrong looking here for some parent (ocp-bus in this
case) and getting priv-pointer from there.

Signed-off-by: Hannes Schmelzer <oe5hpm@oevsv.at>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-06-25 15:35:15 +05:30
Hannes Schmelzer
b1d2b529b4 spi: omap3: pre-initialize bus-speed with max. slave-speed
Otherwise the frequency is zero and the clock divider cannot be setup by
'omap3_spi_set_speed' function.

Signed-off-by: Hannes Schmelzer <oe5hpm@oevsv.at>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-06-25 15:35:01 +05:30
Michael Trimarchi
34ad749141 spi: mxc_spi: Fix chipselect on DM_SPI driver uclass
CS GPIO activation low/high is determinated by the device tree
so we don't need to take in accoung in cs_activate and cs_deactivate

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-06-25 15:23:06 +05:30
Michael Trimarchi
618e8e20c2 spi: mxc: Fix compilation problem of DM_SPI class driver
drivers/spi/mxc_spi.c:507: undefined reference to `dev_get_addr'
linux-ld.bfd: BFD (GNU Binutils) 2.29.1 assertion fail elf32-arm.c:9509

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-06-25 14:18:41 +05:30
Vipul Kumar
240cd7566e spi: zynq_qspi: Fixed incorrect return value error
This patch replaced "return 0" with "return status" to fix the
incorrect return value error reported by the coverity.

Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Vipul Kumar <vipul.kumar@xilinx.com>
[jagan: rebased on master]
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2018-06-25 14:13:57 +05:30
Ley Foon Tan
6c353674bd spi: cadence_qspi: Change to use devfdt_get_addr_index()
Change to use devfdt_get_addr_index() function to get fdt address.

Original code has compilation warning below:

drivers/spi/cadence_qspi.c: In function ‘cadence_spi_ofdata_to_platdata’:
drivers/spi/cadence_qspi.c:297:18: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
  plat->regbase = (void *)data[0];
                  ^
drivers/spi/cadence_qspi.c:298:18: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
  plat->ahbbase = (void *)data[2];
                  ^
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
Acked-by: Marek Vasut <marex@denx.de>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-06-04 23:30:04 +05:30
Tom Rini
2a046ff5e9 Merge branch 'master' of git://git.denx.de/u-boot-mips 2018-06-01 16:46:39 -04:00
Álvaro Fernández Rojas
46689a94b2 spi: bcm63xx_hsspi: convert to use live dt
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2018-06-01 15:56:02 +02:00
Álvaro Fernández Rojas
85e1ddbaf0 spi: bcm63xx_spi: convert to use live dt
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2018-06-01 15:56:02 +02:00
Tom Rini
8ada17dde8 Merge branch 'master' of git://git.denx.de/u-boot-spi
- Fix a conflict in drivers/spi/atcspi200_spi.c related to the riscv
  tree fixing a warning.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-30 14:51:37 -04:00
Rick Chen
6083cf3883 spi: atcspi200: Fix compiler warning
Fix warning as below when compile in 64-bit.

warning: format '%u' expects argument of type
'unsigned int', but argument 6 has type 'size_t
{aka long unsigned int}

Signed-off-by: Rick Chen <rick@andestech.com>
Signed-off-by: Rick Chen <rickchen36@gmail.com>
Cc: Greentime Hu <green.hu@gmail.com>
2018-05-29 14:45:03 +08:00
Heinrich Schuchardt
4bcd88a2d8 spi: fsl_qspi: remove superfluous assignment
In

	void *rx_addr = NULL;
	rx_add = A;

the first assignment has no effect. Remove it.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-05-16 19:19:24 +05:30
Heinrich Schuchardt
266580612f spi: lpc32xx: simplify logical expression
A & A & B == A & B

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-05-16 19:19:06 +05:30
Heinrich Schuchardt
8fad5e0b11 spi: atcspi200: avoid NULL dereference
For SPI_XFER_BEGIN | SPI_XFER_END the code sets data_out = NULL.
In the debug statement we should not dereference this value.
As we do not transfer any data the debug statement is not needed in this
case anyway.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-05-16 19:18:41 +05:30
Patrice Chotard
5e46123bf3 spi: stm32_qspi: Add reset support
In some situation, QSPI controller is already configured by an early
boot stage, adding reset support will insure that QSPI controller is
started from a pristine state.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-05-16 18:41:21 +05:30
Patrice Chotard
2a6ca73691 spi: stm32_qspi: Use dev_read_xxx API
Use dev_read_xxx() instead of old manner fdt_xxx() API

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-05-16 18:41:21 +05:30
Christophe Kerello
495f3b2ae5 spi: stm32_qspi: Add chip select management
Quad-SPI interface is able to manage 2 spi nor devices.
FSEL bit selects the flash memory to be addressed in single flash mode.

Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-05-16 18:41:21 +05:30
Christophe Kerello
76afe56a44 spi: stm32_qspi: Add st, stm32f469-qspi compatible string
Add "st,stm32f469-qspi" compatible which is used on kernel side.
This will be necessary when DT will be synchronised from kernel.

Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-05-16 18:41:21 +05:30
Christophe Kerello
09e1772067 spi: stm32_qspi: Align reg-names with kernel 4.12 RC1
Align qspi bindings following kernel dt-bindings
Documentation/devicetree/bindings/mtd/stm32-quadspi.txt
from kernel v4.12-rc1.

Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-05-16 18:41:21 +05:30
Patrice Chotard
8c4592d278 spi: stm32_qspi: Sort include files alphabetically
Sort include files by alphabetical order

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-05-16 18:41:21 +05:30
Patrick Delaunay
936abadac8 spi: stm32_qspi: Solve issue detected by checkpatch
Fix parameters function alingemnt
Fix variable declaration

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-05-16 18:41:21 +05:30
Patrice Chotard
12e7c91a0b spi: stm32_qspi: Remove CONFIG_CLK flag
As all platforms which uses this driver have CONFIG_CLK flag
enable in their defconfig, we can remove it from driver code.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-05-16 18:41:21 +05:30
Marek Behún
dbbd5bdd27 spi: mvebu_a3700_spi: Use Armada 37xx clk driver for SPI clock frequency
Since now we have driver for clocks on Armada 37xx, use it to determine
SQF clock frequency for the SPI driver.

Also change the default config files for Armada 37xx devices so that
the clock driver is enabled by default, otherwise the SPI driver cannot
be enabled.

Signed-off-by: Marek Behun <marek.behun@nic.cz>
Signed-off-by: Stefan Roese <sr@denx.de>
2018-05-14 10:00:15 +02:00
Rajat Srivastava
1f55356411 spi: fsl_qspi: Introduce is_controller_busy function
Some SoCs have different endianness of QSPI IP if compared
to endianness of core. The function is_controller_busy()
checks if the QSPI controller is busy or not, considering
the endianness of the QSPI IP.

Signed-off-by: Rajat Srivastava <rajat.srivastava@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2018-05-09 09:17:51 -05:00
Tom Rini
83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00
Tom Rini
d024236e5a Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTR
We have a large number of places where while we historically referenced
gd in the code we no longer do, as well as cases where the code added
that line "just in case" during development and never dropped it.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-27 14:54:48 -04:00
Adam Ford
f1b1f77060 Convert CONFIG_SPI to Kconfig
This converts the following to Kconfig:
   CONFIG_SPI

This partly involves updating code that assumes that CONFIG_SPI implies
things that are specific to the MPC8xx SPI driver.  For now, just update
the CONFIG tests.  This also involves reworking the default for
CONFIG_SYS_DEF_EEPROM_ADDR so that we don't set it when we cannot make a
reasonable default, as it does not cause any compile failures.

Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-27 14:54:11 -04:00
Eugeniy Paltsev
9b14ac5cc2 spi: dw: invert wait condition in dw_spi_xfer
While switching to readl_poll_timeout macros from custom code
the waiting condition was accidently inverted, so it was pure
luck that this code works at least in some conditions.

Fix that by inverting exit condition for readl_poll_timeout.

Fixes: c6b4f031d9 ("DW SPI: fix tx data loss on FIFO flush")

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-04-23 11:16:41 +05:30
Marek Vasut
ea5512eb09 spi: sh_qspi: Make use of the 32byte FIFO
The QSPI controller on RCar Gen2 has 32byte FIFO. Instead of doing
the SPI transmission 1 byte at time, if there is a 32byte chunk of
data to be transferred, fill the FIFO completely and then transfer
the data to/from the FIFO. This increases the SPI NOR access speed
significantly.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
2018-04-11 23:19:51 +02:00
Marek Vasut
9573db654d spi: sh_qspi: Replace ad hoc waiting with wait_for_bit
Replace the ad-hoc endless loops with wait_for_bit() with
reasonable timeout. Note that the loops had internal 10uS
delays, although there is no reason for those on this HW,
so they are dropped.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
2018-04-11 23:19:51 +02:00
Marek Vasut
1182264952 spi: sh_qspi: Drop SPBDCR wait
Waiting for SPBDCR == 1 is not required and is covered by the
subsequent wait for SPSR_SPRFF, so drop this.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
2018-04-11 23:19:51 +02:00
Marek Vasut
0e6fa20b14 spi: sh_qspi: Replace data types with short ones
Just replace unsigned {char,short,long} with u{8,16,32},
no functional change.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
2018-04-11 23:19:50 +02:00
Marek Vasut
fbebea27e1 mtd: spi: Add Renesas RPC SPI-flash driver
Add driver for the RPC block in SPI-flash mode. This driver allows
access to a SPI NOR flash attached to the RPC block and does not
support RPC in Hyperflash mode. Note that this block is extremely
selective when communicating with the SPI NOR.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2018-04-11 23:12:01 +02:00
Tom Rini
e80fa2c2c0 Revert "spi: atmel: Drop non-dm code"
As we aren't quite able to convert some platforms with a very small size
limit in SPL yet, we need to revert this for now.

This reverts commit 7b09477873.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-07 09:19:00 -04:00
Tom Rini
5270df2836 Revert "spi: atmel: Drop atmel_spi.h"
As we aren't quite able to convert some platforms with a very small size
limit in SPL yet, we need to revert this for now.

This reverts commit 37434db29b.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-07 09:18:26 -04:00
Christophe Leroy
18f8d4c60d powercp: mpc8xx: move commproc.h
include/commproc.h is dedicated to the 8xx, rename it cpm_8xx.h and
move it into arch/powerpc/include/asm

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2018-04-06 16:30:37 -04:00
Christophe Leroy
ee1e600c13 powerpc: mpc8xx: Change CONFIG_8xx to CONFIG_MPC8xx
CONFIG_8xx doesn't mean much outside of arch/powerpc/
This patch renames it CONFIG_MPC8xx just like CONFIG_MPC85xx etc ...
It also renames 8xx_immap.h to immap_8xx.h to be consistent with
other file names.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2018-04-06 16:30:37 -04:00
Jagan Teki
89d4fc153b spi: atmel: default y if DM_SPI && ARCH_AT91
ATMEL_SPI is now fully converted to driver-model and
respective boards switch to DM_SPI as well,
so make default y for ARCH_AT91

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Wenyou Yang <wenyouya@gmail.com>
2018-04-06 16:11:09 -04:00
Jagan Teki
37434db29b spi: atmel: Drop atmel_spi.h
atmel_spi.h has register offsets, and atmel_spi_slave
structure, move it into .c file for better readability
and drop atmel_spi.h

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Wenyou Yang <wenyouya@gmail.com>
2018-04-06 16:11:09 -04:00
Jagan Teki
7b09477873 spi: atmel: Drop non-dm code
All board configs are now enabled DM_SPI for SPL and
U-Boot proper, so now its time to drop non-dm code.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Wenyou Yang <wenyouya@gmail.com>
2018-04-06 16:11:09 -04:00
Jagan Teki
9bf48e2ee8 spi: atmel: Add ifdef for DM_GPIO code
Few boards are configuring gpio directly from board instead
using drivers/gpio so add ifdef for DM_GPIO to compatible
for both the cases.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Wenyou Yang <wenyouya@gmail.com>
2018-04-06 16:11:09 -04:00
Sjoerd Simons
63018a3edd omap3: spi: Correct ti, pindir-d0-out-d1-in parsing
The ti,pindir-d0-out-d1-in property is not expected to have a value
according to the device-tree binding, so treat it as a boolean not a
uint property.

Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-03-23 23:03:29 +05:30
Eugeniy Paltsev
4b5f6c52e7 DW SPI: use 32 bit access instead of 16 and 32 bit mix
Current DW SPI driver uses 32 bit access for some registers and
16 bit access for others. So if DW SPI IP is connected via bus
which doesn't support 16 bit access we will get bus error.

Fix that by switching to 32 bit access only instead of 16 and 32 bit mix

Additional Documentation to Support this Change:
The DW_apb_ssi databook states:
"All registers in the DW_apb_ssi are addressed at 32-bit boundaries
to remain consistent with the AHB bus. Where the physical size of
any register is less than 32-bits wide, the upper unused bits of
the 32-bit boundary are reserved. Writing to these bits has no
effect; reading from these bits returns 0." [1]

[1] Section 6.1 of dw_apb_ssi.pdf (version 3.22a)

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-03-22 23:01:35 +05:30
Eugeniy Paltsev
bcdcb3e61e DW SPI: add option to use external gpio for chip select
DW SPI internal chip select management has limitation:
it hold CS line in active state only when the FIFO is not
empty. If the FIFO freed before we add new data the SPI transaction will
be broken.

So add option to use external gpio for chip select. Gpio can be added
via device tree using standard gpio bindings.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-03-22 23:01:35 +05:30
Eugeniy Paltsev
d3d8aaec74 DW SPI: refactor poll_transfer functions
There is no sense in waiting for RX data in dw_reader function:
there is no chance that RX data will appear in RX FIFO if
RX FIFO is empty after previous TX write in dw_writer function.
So get rid of this waiting. After that we can get rid of dw_reader
return value and make it returning void. After that we can get rid
of dw_reader return value check in poll_transfer function.

With these changes we're getting closer to Linux DW SPI driver.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-03-22 23:01:35 +05:30
Eugeniy Paltsev
fc282c7bcb DW SPI: fix transmit only mode
In current implementation we get -ETIMEDOUT error when we try to use
transmit only mode (SPI_TMOD_TO)
This happens because in transmit only mode input FIFO never gets any data
which breaks our logic in dw_reader(): we are waiting until RX data will be
ready in dw_reader, but this newer happens, so we return with error.

Fix that by using SPI_TMOD_TR instead of SPI_TMOD_TO which allows to use
RX FIFO.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-03-22 23:01:35 +05:30
Eugeniy Paltsev
c6b4f031d9 DW SPI: fix tx data loss on FIFO flush
In current implementation if some data still exists in Tx FIFO it
can be silently flushed, i.e. dropped on disabling of the controller,
which happens when writing 0 to DW_SPI_SSIENR (it happens in the
beginning of new transfer)

So add wait for current transmit operation to complete to be sure
that current transmit operation is finished before new one.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-03-22 23:01:35 +05:30
Tom Rini
3fa9bc7969 Merge git://git.denx.de/u-boot-spi 2018-03-15 08:27:27 -04:00
Jagan Teki
b2b41d2777 spi: omap3: Fix redeclared error
omap3_spi_set_speed|mode redeclared bus symbol, fix the same.

error:
drivers/spi/omap3_spi.c: In function ‘omap3_spi_set_speed’:
drivers/spi/omap3_spi.c:650:18: error: ‘bus’ redeclared as different kind of symbol
  struct udevice *bus = dev->parent;

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2018-03-14 23:19:31 +05:30
Patrice Chotard
aa5e3e22f4 board: stm32: switch to DM STM32 timer
Use available DM stm32_timer driver instead of dedicated
mach-stm32/stm32fx/timer.c.

Remove all defines or files previously used for timer usage in
arch/arm/include/asm/arch-stm32fx and in arch/arm/mach-stm32/stm32fx

Enable DM STM32_TIMER for STM32F4/F7 and H7.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-03-13 21:45:37 -04:00
Jagan Teki
8480792287 spi: omap3: Skip set_mode, set_speed from claim
set_mode, set_seed functions has separate function pointers
in dm_spi_ops, so use them in relevent one instead of
calling from claim_bus.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2018-03-13 19:50:10 +05:30
Jagan Teki
15927aef02 spi: atcspi200: Drop non-dm code
Boards adp-ae3xx_defconfig, nx25-ae250_defconfig
already enabled DM_SPI, so non-dm code make no use
of it hence droped.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2018-03-13 19:50:10 +05:30
Tuomas Tynkkynen
fbca0e66cc spi: Migrate CONFIG_CF_SPI to Kconfig
Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>
2018-02-13 23:01:44 -05:00
Tuomas Tynkkynen
4a942f49b8 spi: Migrate CONFIG_KIRKWOOD_SPI to Kconfig
Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>
2018-02-13 23:01:44 -05:00
Tuomas Tynkkynen
2c4b096b4c spi: Migrate CONFIG_LPC32XX_SSP to Kconfig
Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>
2018-02-13 23:01:44 -05:00
Tuomas Tynkkynen
bbdf38698e spi: Migrate CONFIG_MPC8XXX_SPI to Kconfig
Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>
2018-02-13 23:01:44 -05:00
Tuomas Tynkkynen
60e5456291 spi: Migrate CONFIG_MXC_SPI to Kconfig
Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>
2018-02-13 23:01:44 -05:00
Tuomas Tynkkynen
7b819b569e spi: Migrate CONFIG_MXS_SPI to Kconfig
Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>
2018-02-13 23:00:53 -05:00
Tuomas Tynkkynen
a5dfabea19 spi: Migrate CONFIG_SH_QSPI to Kconfig
Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>
2018-02-13 23:00:47 -05:00
Tuomas Tynkkynen
95d3877a58 spi: Migrate CONFIG_SH_SPI to Kconfig
Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>
2018-02-13 23:00:29 -05:00
Heinrich Schuchardt
923837e159 atcspi200: avoid possible NULL dereference
Check if ns before and not after dereferencing it.

Indicated by cppcheck.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2018-02-07 22:06:18 -05:00