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path: root/drivers/spi/spi-uclass.c
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2024-11-25spi: Fix missed rename from SPI_ADVANCE to SPI_STACKED_PARALLELDominik Wernberger
Fix missed rename from SPI_ADVANCE to SPI_STACKED_PARALLEL. This fixes an issue encountered while testing the Zynq-7000 QSPI parallel Flash implementation. Fixes: f896aa656774 ("mtd: spi-nor: Rename SPI_ADVANCE to SPI_STACKED_PARALLEL") Reviewed-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com> Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Signed-off-by: Dominik Wernberger <dominik.wernberger@gmx.de>
2024-10-11Merge patch series "Tidy up use of 'SPL' and CONFIG_SPL_BUILD"Tom Rini
Simon Glass <sjg@chromium.org> says: When the SPL build-phase was first created it was designed to solve a particular problem (the need to init SDRAM so that U-Boot proper could be loaded). It has since expanded to become an important part of U-Boot, with three phases now present: TPL, VPL and SPL Due to this history, the term 'SPL' is used to mean both a particular phase (the one before U-Boot proper) and all the non-proper phases. This has become confusing. For a similar reason CONFIG_SPL_BUILD is set to 'y' for all 'SPL' phases, not just SPL. So code which can only be compiled for actual SPL, for example, must use something like this: #if defined(CONFIG_SPL_BUILD) && !defined(CONFIG_TPL_BUILD) In Makefiles we have similar issues. SPL_ has been used as a variable which expands to either SPL_ or nothing, to chose between options like CONFIG_BLK and CONFIG_SPL_BLK. When TPL appeared, a new SPL_TPL variable was created which expanded to 'SPL_', 'TPL_' or nothing. Later it was updated to support 'VPL_' as well. This series starts a change in terminology and usage to resolve the above issues: - The word 'xPL' is used instead of 'SPL' to mean a non-proper build - A new CONFIG_XPL_BUILD define indicates that the current build is an 'xPL' build - The existing CONFIG_SPL_BUILD is changed to mean SPL; it is not now defined for TPL and VPL phases - The existing SPL_ Makefile variable is renamed to SPL_ - The existing SPL_TPL Makefile variable is renamed to PHASE_ It should be noted that xpl_phase() can generally be used instead of the above CONFIGs without a code-space or run-time penalty. This series does not attempt to convert all of U-Boot to use this new terminology but it makes a start. In particular, renaming spl.h and common/spl seems like a bridge too far at this point. The series is fully bisectable. It has also been checked to ensure there are no code-size changes on any commit.
2024-10-11log: global: Rename warn_non_spl()Simon Glass
This should now refer to xPL rather than SPL, so update it throughout the tree. Signed-off-by: Simon Glass <sjg@chromium.org>
2024-10-09spi: spi-uclass: Read chipselect and restrict capabilitiesVenkatesh Yadav Abbarapu
Read chipselect properties from DT which are populated using 'reg' property and save it in plat->cs[] array for later use. Also read multi chipselect capability which is used for parallel-memories and return errors if they are passed on using DT but driver is not capable of handling it. Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@amd.com> Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
2024-05-20Restore patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"Tom Rini
As part of bringing the master branch back in to next, we need to allow for all of these changes to exist here. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
2024-05-19Revert "Merge patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet""Tom Rini
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
2024-05-07spi: Remove <common.h> and add needed includesTom Rini
Remove <common.h> from this driver directory and when needed add missing include files directly. Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: William Zhang <william.zhang@broadcom.com> Signed-off-by: Tom Rini <trini@konsulko.com>
2023-09-14spi: Remove unused NEEDS_MANUAL_RELOC code bitsMarek Vasut
The last user of the NEEDS_MANUAL_RELOC has been removed in commit 26af162ac8f8 ("arch: m68k: Implement relocation") Remove now unused NEEDS_MANUAL_RELOC code. Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
2022-10-16spi: Implement spi_set_speedPaul Barker
This function is already defined in spi.h but no implementation of it currently exists in the tree. The implementation is based on the static function spi_set_speed_mode(). The function prototype is modified so that an success or error condition can be returned to the caller. Signed-off-by: Paul Barker <paul.barker@sancloud.com> Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2022-05-23spi: spi-uclass: Add new spi_get_bus_and_cs() implementationPatrice Chotard
Move legacy spi_get_bus_and_cs() code to _spi_get_bus_and_cs(). Add new spi_get_bus_and_cs() implementation which rely on DT for speed and mode and don't need any drv_name nor dev_name parameters. This will prepare the ground for next patch. Update all callers to use _spi_get_bus_and_cs() to keep the same behavior. Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com> Cc: Marek Behun <marek.behun@nic.cz> Cc: Jagan Teki <jagan@amarulasolutions.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Joe Hershberger <joe.hershberger@ni.com> Cc: Ramon Fried <rfried.dev@gmail.com> Cc: Lukasz Majewski <lukma@denx.de> Cc: Marek Vasut <marex@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Simon Glass <sjg@chromium.org> Cc: Stefan Roese <sr@denx.de> Cc: "Pali Rohár" <pali@kernel.org> Cc: Konstantin Porotchkin <kostap@marvell.com> Cc: Igal Liberman <igall@marvell.com> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Pratyush Yadav <p.yadav@ti.com> Cc: Sean Anderson <seanga2@gmail.com> Cc: Anji J <anji.jagarlmudi@nxp.com> Cc: Biwen Li <biwen.li@nxp.com> Cc: Priyanka Jain <priyanka.jain@nxp.com> Cc: Chaitanya Sakinam <chaitanya.sakinam@nxp.com>
2021-09-25treewide: Try to avoid the preprocessor with OF_REALSimon Glass
Convert some of these occurences to C code, where it is easy to do. This should help encourage this approach to be used in new code. Signed-off-by: Simon Glass <sjg@chromium.org>
2021-09-25treewide: Use OF_REAL instead of !OF_PLATDATASimon Glass
Now that we have a 'positive' Kconfig option, use this instead of the negative one, which is harder to understand. Signed-off-by: Simon Glass <sjg@chromium.org>
2021-09-25treewide: Simply conditions with the new OF_REALSimon Glass
Use this new Kconfig to simplify the compilation conditions where appropriate. Signed-off-by: Simon Glass <sjg@chromium.org>
2021-06-30spi: Update speed/mode on changeMarek Vasut
The spi_get_bus_and_cs() may be called on the same bus and chipselect with different frequency or mode. This is valid usecase, but the code fails to notify the controller of such a configuration change. Call spi_set_speed_mode() in case bus frequency or bus mode changed to let the controller update the configuration. The problem can easily be triggered using the sspi command: => sspi 0:0@1000 => sspi 0:0@2000 Without this patch, both transfers happen at 1000 Hz. With this patch, the later transfer happens correctly at 2000 Hz. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Jagan Teki <jagan@amarulasolutions.com> Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
2021-03-27spi: spi-uclass: Add support to manually relocate spi memory opsT Karthik Reddy
Add spi memory operations to relocate manually when CONFIG_NEEDS_MANUAL_RELOC is enabled. Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com> Acked-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Pratyush Yadav <p.yadav@ti.com>
2021-02-02common: Drop asm/global_data.h from common headerSimon Glass
Move this out of the common header and include it only where needed. In a number of cases this requires adding "struct udevice;" to avoid adding another large header or in other cases replacing / adding missing header files that had been pulled in, very indirectly. Finally, we have a few cases where we did not need to include <asm/global_data.h> at all, so remove that include. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com>
2021-01-05Merge tag 'dm-pull-5jan21' of git://git.denx.de/u-boot-dm into nextTom Rini
Driver model: make some udevice fields private Driver model: Rename U_BOOT_DEVICE et al. dtoc: Tidy up and add more tests ns16550 code clean-up x86 and sandbox minor fixes for of-platdata dtoc prepration for adding build-time instantiation
2021-01-05Merge tag 'v2021.01-rc5' into nextTom Rini
Prepare v2021.01-rc5 Signed-off-by: Tom Rini <trini@konsulko.com>
2021-01-05dm: core: Use dev_has_ofnode() instead of dev_of_valid()Simon Glass
We have two functions which do the same thing. Standardise on dev_has_ofnode() since there is no such thing as an 'invalid' ofnode in normal operation: it is either null or missing. Also move the functions into one place. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-12-22dm: spi: Fix spi_free_slave() freed memory writeNiel Fourie
Remove setting slave->dev to NULL after the device_remove() call. The slave pointer points to dev->parent_priv, which has already been freed by device_free(), called from device_remove() in the preceding line. Writing to slave->dev may cause corruption of the dlmalloc free chunk forward pointer of the previously freed chunk. Signed-off-by: Niel Fourie <lusus@denx.de> Cc: Simon Glass <sjg@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-12-22spi: spi-uclass: Fix spi_claim_bus() speed/mode setup logicOvidiu Panait
Currently, when different spi slaves claim the bus consecutively using spi_claim_bus(), spi_set_speed_mode() will only be executed on the first two calls, leaving the bus in a bad state starting with the third call. This patch drops spi_slave->speed member and adds caching of bus speed/mode in dm_spi_bus struct. It also updates spi_claim_bus() to call spi_set_speed_mode() if either speed or mode is different from what the bus is currently configured for. Current behavior is to only take into account the speed, but not the mode, which seems wrong. Fixes: 60e2809a848 ("dm: spi: Avoid setting the speed with every transfer") Reviewed-by: Simon Glass <sjg@chromium.org> Reported-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reported-by: Moshe, Yaniv <yanivmo@amazon.com> Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
2020-12-18dm: Drop the unused arg in uclass_find_device_by_seq()Simon Glass
Now that there is only one sequence number (rather than both requested and assigned ones) we can simplify this function. Also update its caller to simplify the logic. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-18spi: migrate trace to dev and log macro in spi uclassPatrick Delaunay
Define LOG_CATEGORY and change printf and pr_* to dev_ (when dev is available) or log_ macro. This patch adds the support of logging feature with log command (filtering, display of device name in trace) and allows to suppress traces via the syslog driver. Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2020-12-13dm: treewide: Rename ..._platdata variables to just ..._platSimon Glass
Try to maintain some consistency between these variables by using _plat as a suffix for them. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Update 'auto' declarations to be on one lineSimon Glass
Fix up the code style for those declarations that should now fit onto one line, which is all of them that currently do not. This is needed for dtoc to detect the structs correctly, at present. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Rename ofdata_to_platdata() to of_to_plat()Simon Glass
This name is far too long. Rename it to remove the 'data' bits. This makes it consistent with the platdata->plat rename. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Rename 'platdata' variables to just 'plat'Simon Glass
We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Rename auto_alloc_size members to be shorterSimon Glass
This construct is quite long-winded. In earlier days it made some sense since auto-allocation was a strange concept. But with driver model now used pretty universally, we can shorten this to 'auto'. This reduces verbosity and makes it easier to read. Coincidentally it also ensures that every declaration is on one line, thus making dtoc's job easier. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-09-15spi: spi-uclass: Block dm_scan_fdt_dev with OF_CONTROL to prevent build failuresFaiz Abbas
There are devices which don't use OF_CONTROL or OF_PLATDATA but instead rely on statically defined platdata. Block dm_scan_fdt_dev() with both configs to avoid build failures under this condition. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2020-05-18common: Drop log.h from common headerSimon Glass
Move this header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-01-27mtd: spi-nor-core: Add octal mode supportVignesh Raghavendra
Add support for Octal flash devices. Octal flash devices use 8 IO lines for data transfer. Currently only 1-1-8 Octal Read mode is supported. Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2020-01-27spi: prevent overriding established bus settingsMarcin Wojtas
The SPI stack relies on a proper bus speed/mode configuration by calling dm_spi_claim_bus(). However the hitherto code allowed to accidentally override those settings in the spi_get_bus_and_cs() routine. The initially established speed could be discarded by using the slave platdata, which turned out to be an issue on the platforms whose slave maximum supported frequency is not on par with the maximum frequency of the bus controller. This patch fixes above issue by configuring the bus from spi_get_bus_and_cs() only in case it was not done before. Signed-off-by: Marcin Wojtas <mw@semihalf.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Jagan Teki <jagan@amarulasolutions.com>
2020-01-27dm: spi: Check cs number before accessing slavesBin Meng
Add chip select number check in spi_find_chip_select(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine
2020-01-14spi: Fix manual relocation calling more timesAshok Reddy Soma
When two instances of AXI QSPI with flash are added and tested simultaneously the spi driver operations are relocated twice. As a result code is accessing addresses outside of RAM when relocated second time which is causing a crash. Tested on Microblaze. Similar change was done in past by: commit f238b3f0fbc9 ("watchdog: dm: Support manual relocation for watchdogs") commit 2588f2ddfd60 ("dm: sf: Add support for all targets which requires MANUAL_RELOC") commit 1b4c2aa25bdf ("gpio: dm: Support manual relocation for gpio") Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2019-12-15spi: Correct operations check in dm_spi_xfer()Simon Glass
At present we have to have an xfer() method even if it does nothing. This is not correct, so fix it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-11-03spi: Add support for memory-mapped flashSimon Glass
On x86 platforms the SPI flash can be mapped into memory so that the contents can be read with normal memory accesses. Add a new SPI method to find the location of the SPI flash in memory. This differs from the existing device-tree "memory-map" mechanism in that the location can be discovered at run-time. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-25dm: spi: Return 0 if driver does not implement ops->cs_infoBin Meng
If an SPI controller driver does not implement ops->cs_info, that probably means any chip select number could be valid, hence let's return 0 for spi_cs_info(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2019-10-15dm: spi: Do not assume first SPI busThomas Fitzsimmons
When CONFIG_OF_PRIOR_STAGE is enabled, this workaround was needed before device_bind_common assigned request numbers sequentially in the absence of aliases. Signed-off-by: Thomas Fitzsimmons <fitzsim@fitzsim.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Simon Glass <sjg@chromium.org>
2019-09-16spi: Add spi_write_then_readJagan Teki
Add support for SPI synchronous write followed by read, this is common interface call from spi-nor to spi drivers. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm
2019-04-12dm: spi: Read default speed and mode values from DTPatrick Delaunay
This patch update the behavior introduced by commit 96907c0fe50a ("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>
2018-11-20dm: spi: prevent setting a speed of 0 HzSimon Goldschmidt
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>
2018-10-09dm: spi: Add logging of some return valuesSimon Glass
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>
2018-07-10board: arm: Add support for Broadcom BCM7445Thomas Fitzsimmons
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>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
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>
2018-01-24spi: spi-uclass: Fix style violationsMario Six
Remove a superfluous newline, and reduce the scope of a variable. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc>
2018-01-24spi: Remove spi_setup_slave_fdtMario Six
A previous patch removed the spi_flash_probe_fdt function, which contained the last call of the spi_setup_slave_fdt function, which is now equally obsolete. This patch removes the function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc>
2017-06-01dm: spi: Convert uclass to livetreeSimon Glass
Update the SPI uclass to support a live device tree. Also adjust spi_slave_ofdata_to_platdata() to accept a device instead of a blob and offset. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-04-04dm: core: Add flags parameter to device_remove()Stefan Roese
This patch adds the flags parameter to device_remove() and changes all calls to this function to provide the default value of DM_REMOVE_NORMAL for "normal" device removal. This is in preparation for the driver specific pre-OS (e.g. DMA cancelling) remove support. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org>
2017-02-08dm: core: Replace of_offset with accessorSimon Glass
At present devices use a simple integer offset to record the device tree node associated with the device. In preparation for supporting a live device tree, which uses a node pointer instead, refactor existing code to access this field through an inline function. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-12-15spi: Add error checking for invalid bus widthsSimon Glass
At present an invalid bus width prints a message but does not return an error. This is the opposite of the correct behaviour. Adjust it to avoid code bloat in the common case, and avoid hard-to-debug failure in the uncommon case. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com>