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path: root/drivers/spi
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2020-01-06Merge branch 'next'Tom Rini
Bring in the following merges: commit 8fbbec12f7d2c18f8883f3371cfca74a98b5dd87 Merge: 87f69f467a83 63618e71e89b Author: Tom Rini <trini@konsulko.com> Date: Fri Jan 3 09:48:47 2020 -0500 Merge https://gitlab.denx.de/u-boot/custodians/u-boot-fsl-qoriq into next - updates and fixes on ls1028a, lx2, ls1046a, MC-DPSPARSER support commit 87f69f467a8335b171c71bf217d2625d515acd7c Merge: c0912f9bbfb2 4466b9970319 Author: Tom Rini <trini@konsulko.com> Date: Tue Dec 24 08:18:19 2019 -0500 Merge https://gitlab.denx.de/u-boot/custodians/u-boot-mpc85xx into next - Enable DM driver on ppc/km boards - Enable DM_USB for some of NXP powerpc platforms: P5040, T4240, T208x, T104x, P4080, P2041, P2020, P1020, P3041 - Some updates in mpc85xx-ddr driver, km boards commit c0912f9bbfb26dd03d189953678691b799d35b6e Merge: 533c9f5714bd a1d6dc3f8407 Author: Tom Rini <trini@konsulko.com> Date: Wed Dec 18 07:20:19 2019 -0500 Merge branch 'next' of https://gitlab.denx.de/u-boot/custodians/u-boot-x86 into next - Various x86 common codes updated for TPL/SPL - I2C designware driver updated for PCI - ICH SPI driver updated to support Apollo Lake - Add Intel FSP2 base support - Intel Apollo Lake platform specific drivers support - Add a new board Google Chromebook Coral commit 533c9f5714bdba79dc6f2629284d4c1a08a611d1 Merge: 553cb0688782 033e18b47bd0 Author: Tom Rini <trini@konsulko.com> Date: Tue Dec 17 07:53:08 2019 -0500 Merge tag '20191217-for-next' of https://gitlab.denx.de/u-boot/custodians/u-boot-i2c into next i2c: for next - misc: i2c_eeprom: Add partition support and add ability to query size of eeprom device and partitions - i2c common: add support for offset overflow in to address and add sandbox tests for it. commit 553cb06887825314e74a9bdac337467c77d1db88 Merge: f39abbbc531e b4f98b3b16ec Author: Tom Rini <trini@konsulko.com> Date: Thu Dec 12 08:18:59 2019 -0500 Merge tag 'dm-next-13dec19' of https://gitlab.denx.de/u-boot/custodians/u-boot-dm into next buildman improvements including toolchain environment feature sandbox unicode support in serial
2019-12-27spi: rk: Limit transfers to (64K - 1) bytesJagan Teki
The Rockchip SPI controller's length register only supports 16-bits, yielding a maximum length of 64KiB (the CTRLR1 register holds "length - 1"). Trying to transfer more than that (e.g., with a large SPI flash read) will cause the driver to hang. Now, it seems that while theoretically we should be able to program CTRLR1 with 0xffff, and get a 64KiB transfer, but that also seems to cause the core to choke, so stick with a maximum of 64K - 1 bytes -- i.e., 0xffff. Note, that the size is further divided into 'minus 1' while writing into CTRLR1. This change fixed two different read issues, 1. sf read failure when with > 0x10000 2. Boot from SPI flash failed during spi_flash_read call in common/spl/spl_spi.c Observed and Tested in - Rockpro64 with Gigadevice flash - ROC-RK3399-PC with Winbond flash Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-12-15spi: ich: Add Apollo Lake supportSimon Glass
Add support for Apollo Lake to the ICH driver. This involves adjusting the mmio address and skipping setting of the bbar. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-12-15spi: ich: Add TPL supportSimon Glass
In TPL we want to reduce code size and support running with CONFIG_PCI disabled. Add special code to handle this using a fixed BAR programmed into the SPI on boot. Also cache the SPI flash to speed up boot. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-12-15spi: ich: Add support for get_mmap() methodSimon Glass
Add this method so that the memory-mapped location of the SPI flash can be queried. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-12-15spi: ich: Support hardware sequencingSimon Glass
Apollo Lake (APL) only supports hardware sequencing. Add support for this into the SPI driver, as an option. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-12-15spi: ich: Support of-platdata for fast-spiSimon Glass
The Intel Fast SPI interface is similar to ICH. Add of-platdata support for this using the "intel,fast-spi" compatible string. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-12-15spi: ich: Correct max-size bug in ich_spi_adjust_size()Simon Glass
This incorrectly shortens read operations if there is a maximum write size but no maximum read size. Fix it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-12-15spi: ich: Add mmio_base to struct ich_spi_platdataSimon Glass
It is useful to store the mmio base in platdata. It reduces the amount of casting needed. Update the code and move the struct to the C file at the same time, as we will need to use with of-platdata. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-12-15spi: ich: Various small tidy-upsSimon Glass
Use debug() instead of printf() to reduce code size and change a bool return value to the use the 'bool' type. Also drop the global data declaration since it not actually used. Finally, set the log category. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-12-15spi: ich: Fix header orderSimon Glass
Move the header files into the right order. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-12-15spi: ich: Convert to livetreeSimon Glass
Use dev_get_driver_data() to obtain the device type. It has the same effect and is shorter. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-12-15spi: ich: Move the protection/lockdown code into a functionSimon Glass
Reduce the size of the probe function but putting this code into its own function. Also remove the assumption that the PCH is always a parent of the SPI controller, as this is not the case APL platforms. Use driver model to find the PCH instead. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-12-15spi: ich: Move init function just above probe()Simon Glass
It is annoying to have some of the init code in a different part of the file. Move ich_init_controller() to just above probe() to keep things together. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-12-15x86: spi: Don't enable SPI_FLASH_BAR by defaultSimon Glass
We don't normally need this on x86 unless the size of SPI flash devices is larger than 16MB. This can be enabled by particular SoCs as needed, since it adds to code size. Drop the default enabling of this option on x86. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.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>
2019-12-15dm: gpio: Allow control of GPIO uclass in SPLSimon Glass
At present if CONFIG_SPL_GPIO_SUPPORT is enabled then the GPIO uclass is included in SPL/TPL without any control for boards. Some boards may want to disable this to reduce code size where GPIOs are not needed in SPL or TPL. Add a new Kconfig option to permit this. Default it to 'y' so that existing boards work correctly. Change existing uses of CONFIG_DM_GPIO to CONFIG_IS_ENABLED(DM_GPIO) to preserve the current behaviour. Also update the 74x164 GPIO driver since it cannot build with SPL. This allows us to remove the hacks in config_uncmd_spl.h and Makefile.uncmd_spl (eventually those files should be removed). Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-12-02common: Move ARM cache operations out of common.hSimon Glass
These functions are CPU-related and do not use driver model. Move them to cpu_func.h Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2019-12-02common: Move get_ticks() function out of common.hSimon Glass
This function belongs in time.h so move it over and add a comment. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2019-11-20spi: cadence_qspi: support DM_CLKSimon Goldschmidt
Support loading clk speed via DM instead of requiring ad-hoc code. Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
2019-11-08configs: spi: Add the SPI_FLASH_BAR for ESPIXiaowei Bao
Add the SPI_FLASH_BAR for the ESPI controller of FSL, this entry is missed by commit 6d8251783641 ("configs: Don't use SPI_FLASH_BAR as default") Signed-off-by: Xiaowei Bao <xiaowei.bao@nxp.com> Signed-off-by: Priyanka Jain <priyanka.jain@nxp.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>
2019-10-30Merge https://gitlab.denx.de/u-boot/custodians/u-boot-sunxiTom Rini
- H6 dts(i) sync (Clément) - H6 PIO (Icenowy) - Fix pll1 clock calculation (Stefan) - H6 dram, half DQ (Jernej) - A64 OLinuXino eMMC (Sunil)
2019-10-25Merge tag 'mips-pull-2019-10-25' of git://git.denx.de/u-boot-mipsTom Rini
- bmips: add BCRM NAND support for BCM6368, BCM6328, BCM6362 and BCM63268 SoCs - bmips: various small fixes - mtmips: add new drivers for clock, reset-controller and pinctrl - mtmips: add support for high speed UART - mtmips: update/enhance drivers for SPI and ethernet - mtmips: add support for MMC
2019-10-25spi: mt7621-spi: restore default register value after each xferWeijie Gao
Currently this driver uses a different way to implement the spi xfer, by modifying some fields of two registers, which is incompatible with the MTK's original SDK linux driver. This will cause the flash data being damaged by the SDK driver. This patch lets the mt7621_spi_set_cs() restore the original register fields after cs deactivated. Reviewed-by: Stefan Roese <sr@denx.de> Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2019-10-25spi: mt7621-spi: remove data cache and rewrite its xfer functionWeijie Gao
The mt7621 spi controller supports continuous generic half-duplex spi transaction. There is no need to cache xfer data at all. To achieve this goal, the OPADDR register must be used as the first data to be sent. And follows the eight generic DIDO registers. But one thing different between OPADDR and DIDO registers is OPADDR has a reversed byte order. With this patch, any amount of data can be read/written in a single xfer function call. Reviewed-by: Stefan Roese <sr@denx.de> Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2019-10-25spi: mt7621-spi: use clock frequency from clk driverWeijie Gao
This patch lets the spi driver to use clock provided by the clk driver since the new clk-mt7628 driver provides accurate sys clock frequency. Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2019-10-25spi: designware_spi: Disable and free clock when remove driverLey Foon Tan
Disable and free clock when remove driver. Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com> Acked-by: Marek Vasut <marex@denx.de> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2019-10-25spi: Kconfig: Enable SPI_SUNXI for SUNXIJagan Teki
SPI_SUNXI driver is fully dm-aware and the Allwinner architecture kconfig would have logic to enable the DM_SPI. So, select default spi sunxi driver for sunxi architecture. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2019-10-25dm: spi: Change cs_info op to return -EINVAL for invalid cs numBin Meng
We need distinguish the following two situations in various SPI APIs: - given chip select num is invalid - given chip select num is valid, but no device is attached Currently -ENODEV is returned for both cases. For the first case, it's more reasonable to return -EINVAL instead of -ENODEV for invalid chip select numbers. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2019-10-25dm: 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>
2019-10-25spi: Kconfig: Add help textJagan Teki
Add detailed help text for SPI support. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2019-10-24spi: zynqmp: Remove unused platform headersMichal Simek
There is no reason to include clk.h and hardware.h headers. Driver doesn't require them. Signed-off-by: Michal Simek <michal.simek@xilinx.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>
2019-10-11spi: bcm63xx_hsspi: Continue init when using no reset and fixed-clock.Kursad Oney
The Broadcom ARM implementations do not yet have a clock framework so one can use a fixed clock as the root clock of the hsspi block. The fixed clock does not have an "enable" routine, since it's always enabled. So when we hit this issue, getting an ENOSYS return, do not bail but continue initialization. Similarly the block might already have been out of reset, say, when we are booting from a SPI device. So if the reset signal is not configured in the device tree, do not bail out and instead skip deasserting the reset. Signed-off-by: Kursad Oney <kursad.oney@broadcom.com> Reviewed-by: Philippe Reynes <philippe.reynes@softathome.com>
2019-10-11spi: bcm63xx_hsspi: switch to raw I/O functions.Kursad Oney
Make the driver compatible with both big and little endian SOCs. Replace big-endian calls with their raw equivalents, expect for writing the command to FIFO. That still has to be in big-endian format. Signed-off-by: Kursad Oney <kursad.oney@broadcom.com> Reviewed-by: Philippe Reynes <philippe.reynes@softathome.com> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2019-10-11spi: hsspi: allow to be used on bcm6858 and bcm63158Kursad Oney
This IP exists in both MIPS and ARM cores, so we also allow to use this driver on bcm6858 and bcm63158. Signed-off-by: Kursad Oney <kursad.oney@broadcom.com> Reviewed-by: Philippe Reynes <philippe.reynes@softathome.com> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2019-10-08spi: fsl_qspi: Add support for QSPI on iMX7ULPYe Li
Add the compatible string and driver data for iMX7ULP platform Signed-off-by: Ye Li <ye.li@nxp.com>
2019-10-08spi: fsl_qspi: Update to use driver dataYe Li
Add the driver data for each compatible string. So we can remove the SOC config and use driver data instead. Signed-off-by: Ye Li <ye.li@nxp.com>
2019-10-08spi: fsl_qspi: Update write data size for page program LUTYe Li
The write data size can be overwritten by writing to the IDATSZ field of IPCR register. Since the driver always updates the IDATSZ in page program operation. Set the LUT data size to 0 to align the codes with iMX. Signed-off-by: Ye Li <ye.li@nxp.com>
2019-10-08spi: fsl_qspi: Fix DDR mode setting for latest iMX platformsYe Li
On latest iMX platforms like iMX7D/iMX6UL/iMX8MQ, the QSPI controller is updated to have TDH field in FLSHCR register. According to reference manual, this TDH must be set to 1 when DDR_EN is set. Otherwise, the TX DDR delay logic won't be enabled. Another issue in DDR mode is the MCR register will be overwritten in every read/write/erase operation. This causes DDR_EN been cleared while TDH=1, then no clk2x output for TX data shift and all operations will fail. Signed-off-by: Ye Li <ye.li@nxp.com>
2019-10-08spi: Add support for SPL_OF_PLATDATA to mxs_spi.c driverLukasz Majewski
After this patch the mxs_spi.c DM/DTS driver can be used at early SPL to read payload from SPI-NOR memories. It was necessary to adjust its name to 'fsl_imx_2{38}_spi' to match requirements for SPL_OF_PLATDATA usage. Signed-off-by: Lukasz Majewski <lukma@denx.de>
2019-10-08spi: fix: Call mxs_reset_block() during DM/DTS probeLukasz Majewski
Without this change the DM/DTS version of mxs_spi driver doesn't reset the SPI IP block in probe. As a result this driver (when used solely on U-Boot proper) relies on reset performed by mxs spi driver in SPL. In the use case where eMMC is used in SPL as a boot primary device, the mxs_reset_block() is not called at all and DM/DTS aware SPI driver in U-Boot proper is malfunctioning. Signed-off-by: Lukasz Majewski <lukma@denx.de>
2019-10-08spl: Init proper struct driver member (platdata_auto_alloc_size) for mxs_spiLukasz Majewski
This change initializes proper member of struct driver - platdata_auto_alloc_size instead of priv_auto_alloc_size, which is setup twice. Signed-off-by: Lukasz Majewski <lukma@denx.de>
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
2019-09-16spi: Kconfig: Unmark DEPRECATED for MXS_SPILukasz Majewski
MXS_SPI driver now partially converted into driver-model, so unmark the DEPRECATED option for the same. Signed-off-by: Lukasz Majewski <lukma@denx.de> [jagan: update the commit message] Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2019-09-16spi: soft_spi: Fix data abort if slave is not probedChristophe Kerello
In case spi_get_bus_and_cs callback is used, spi bus is first probed then slave devices are probed. To avoid a data abort in soft_spi probe function, we need to check that (slave != NULL). If slave is NULL, cs_flags and clk_flags will be initialized with respectively GPIOD_ACTIVE_LOW and 0. Signed-off-by: Christophe Kerello <christophe.kerello@st.com> Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2019-09-16spi: mvebu_a3700_spi: Fix clock prescale computationMarek Behún
The prescaler value computation can yield wrong result if given 0x1f at the beginning: the value is computed to be 0x20, but the maximum value the register can hold 0x1f, so the actual stored value in this case is 0, which is obviously wrong. Set the upper bound of the value to 0x1f with the min macro. Signed-off-by: Marek Behún <marek.behun@nic.cz> Reviewed-by: Stefan Roese <sr@denx.de> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2019-08-09x86: ich-spi: Convert driver to spi-mem opsBernhard Messerklinger
With the introduction of the new spi-mem model operations changed slightly. The new spi-mem operations make things a bit easier to handle for ich-spi flash interface. This patch converts the ich-spi driver by using spi-mem operations. Signed-off-by: Bernhard Messerklinger <bernhard.messerklinger@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested on Intel CrownBay and MinnowMax Tested-by: Bin Meng <bmeng.cn@gmail.com> [bmeng: fix compiler warnings when building the driver for 64-bit] Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2019-07-27Merge tag 'u-boot-imx-20190719' of ↵Tom Rini
https://gitlab.denx.de/u-boot/custodians/u-boot-imx u-boot-imx-20190719 - CCF for i.MX6 - nandbcb command to write SPL into NAND - Switch to DM (i.MX28) - Boards: Toradex, engicam, DH - Fixes for i.MX8 - Fixes for i.MX7ULP Travis: https://travis-ci.org/sbabic/u-boot-imx/builds/561147504
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