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Add i.MX8ULP flexspi compatible string and driver data.
The flexspi on i.MX8ULP only has 16 LUT sequences and uses 1KB RX FIFO.
Signed-off-by: Ye Li <[email protected]>
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According to i.MX8DXL A1 errata ERR050601, concurrent read accesses
from the A35 cores to the peripherals within the LSIO subsystem
(region 0_5DXX_XXXX) and address spaces in the regions
[0_0000_0000 – 0_1BFF_FFFF] and [4_0000_0000 – 4_3FFF_FFFF] can collide
and cause data corruption in the returned data, with no failure report.
Even a single A35 core accessing both these regions can trigger the issue
because an A35 core can have more than one parallel read operation in
progress.
The flexspi0 AHB memory is in LSIO region mentioned in above errata.
So we can't use AHB read, only can read data from FIFO.
Add the compatible string for 8DXL and use a flag for the IPS read.
Signed-off-by: Ye Li <[email protected]>
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Add the compatible string and driver data for i.MX8QXP.
Signed-off-by: Ye Li <[email protected]>
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Use a dedicated LUT (second last) for AHB read command, so we can
directly read from the AHB memory-mapped address and booting M core
for XIP on Flexspi NOR.
Signed-off-by: Ye Li <[email protected]>
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Add STM32 OSPI driver, it supports :
- support sNOR / sNAND devices.
- Two functional modes: indirect (read/write) and memory-mapped (read).
- Single-, dual-, quad-, and octal-SPI communication.
- Single data rate (SDR).
Signed-off-by: Patrice Chotard <[email protected]>
Reviewed-by: Patrick Delaunay <[email protected]>
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Prepare v2025.10-rc4
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In spi_rx_tx there comes a test for execution of a code block that
allows execution if rxp is not NULL or stopping is true. However all the
code in this block relies on rxp being valid so allowing entry just if
stopping is true does not make sense. So remove this from the test
expression leaving just a NULL check for rxp.
This issue was found by Smatch.
Signed-off-by: Andrew Goodbody <[email protected]>
Signed-off-by: Minkyu Kang <[email protected]>
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These values were calculated but not set.
They are required for the calculation of the delays, as stated in the
"QorIQ LS1043A Reference Manual, Rev. 6, 07/2020" page 2172.
The delays are calculated as (1/freq)*PCSSCK*CSSCK and
(1/freq)*PASC*ASC.
Signed-off-by: Tomas Alvarez Vanoli <[email protected]>
Reviewed-by: Vladimir Oltean <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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In atmel_qspi_transfer(), the status register is polled with:
imr = QSPI_SR_INSTRE | QSPI_SR_CSR;
return readl_poll_timeout(aq->regs + QSPI_SR, sr,
(sr & imr) == imr,
ATMEL_QSPI_TIMEOUT);
However, this is racy: QSPI_SR_INSTRE can be set before QSPI_SR_CSR,
and will then be cleared by the read. If that happens, the condition
"(sr & imr) == imr" can never be true, and the function times out.
This race condition is avoided in at91bootstrap by accumulating the
status bits across reads until both bits have been observed:
/* Poll INSTruction End and Chip Select Rise flags. */
imr = (QSPI_SR_INSTRE | QSPI_SR_CSR);
sr = 0;
do {
udelay(1);
sr |= qspi_readl(qspi, QSPI_SR) & imr;
} while ((--timeout) && (sr != imr));
Update U-Boot's atmel_qspi_transfer() to use the same pattern,
ensuring that both flags are observed even if they are not set
simultaneously.
Signed-off-by: Ramin Moussavi <[email protected]>
[[email protected]: remove 'sr' and fix commit msg]
Signed-off-by: Eugen Hristev <[email protected]>
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A dependency exposed by "make allyesconfig" is that the logic around
this symbol was not quite correct. It needs to depend on ARCH_MVEBU and
ARM64 and then select CLK_MVEBU.
Signed-off-by: Tom Rini <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
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The buffer that is being used to write into the flash needs
to be handled properly with padding of 0xFF. The place that
this is done can be at a more generic place like spi-nor core.
This reverts commit cd9123507003e07b13e61d72e14e493bb338e827.
Signed-off-by: Prasanth Babu Mantena <[email protected]>
Reviewed-by: Neha Malcom Francis <[email protected]>
Reviewed-by: Venkatesh Yadav Abbarapu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michal Simek <[email protected]>
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Add xfer function to PolarFire SoC coreqspi driver. The read and write
operations are limited to one byte at a time instead of four as CMD18
(multiple block read) reads garbage when four byte ops are enabled.
Signed-off-by: Eoin Dickson <[email protected]>
Acked-by: Leo Yu-Chi Liang <[email protected]>
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In DDR mode, even bytes are read using DMA, while the remaining odd
bytes are read using STIG mode. However, the data is not correctly
transferred into the flash read data lower register because the
supplementary byte of the STIG opcode is not being written to the
opcode extension register, resulting in incorrect data being read.
To resolve this issue, when using STIG transactions, the corresponding
supplementary byte of any STIG opcode must be defined in the Opcode
Extension Register (Lower). Issue has been observed on the Macronix
MX66UM2G45G flashes.
Signed-off-by: Prasad Kummari <[email protected]>
Signed-off-by: Venkatesh Yadav Abbarapu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michal Simek <[email protected]>
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tshsl_ns is the clock delay for chip select deassert. This is the delay in
master reference clocks for the length that the master mode chip select
outputs are de-asserted between transactions.
The minimum delay is always SCLK period to ensure the chip select is never
re-asserted within one SCLK period.
That is why tshsl_ns delay should be at least one sclk_ns value. If it is
less than sclk_ns, set it equal to sclk_ns.
Signed-off-by: Ashok Reddy Soma <[email protected]>
Signed-off-by: Venkatesh Yadav Abbarapu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michal Simek <[email protected]>
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Starting from 'commit <8077d296adff> ("spi: cadence-quadspi: Use STIG
mode for all ops with small payload") the utilization of STIG mode
has been implemented for read and write operations involving less
than 8 bytes of data.
However, following this commit, encountering timeout issues occurs when
writing odd bytes of data in DDR mode, as indicated below:
"jedec_spi_nor flash@0: flash operation timed out
SF: 3 bytes @ 0x0 Written: ERROR -110"
To resolve this issue, the number of bytes to write has been updated
specifically for DDR mode.
Signed-off-by: Tejas Bhumkar <[email protected]>
Signed-off-by: Venkatesh Yadav Abbarapu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michal Simek <[email protected]>
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A following patch is replacing our IO accessors with
do { ... } while(0) ones in order to make them usable with KVM.
That leads to an error eventually looking like this:
arch/arm/include/asm/io.h:62:9: error: expected expression before 'do'
62 | do { \
| ^~
arch/arm/include/asm/io.h:211:41: note: in expansion of macro '__raw_writel'
211 | #define out_arch(type,endian,a,v) __raw_write##type(cpu_to_##endian(v),a)
| ^~~~~~~~~~~
arch/arm/include/asm/io.h:223:25: note: in expansion of macro 'out_arch'
223 | #define out_be32(a,v) out_arch(l,be32,a,v)
| ^~~~~~~~
drivers/spi/fsl_dspi.c:127:17: note: in expansion of macro 'out_be32'
127 | out_be32(addr, val) : out_le32(addr, val);
| ^~~~~~~~
So adjust the current macros and code to be compatible with the upcoming
change.
Signed-off-by: Ilias Apalodimas <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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On 32-bit systems, e.g. i.mxrt-1170 fdt_addr_t may only be 32-bit.
Cast to a "long long" for garbage avoidance.
Signed-off-by: Jonathan Currier <[email protected]>
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Add the device specific driver data, and the clock configuration.
Signed-off-by: Jonathan Currier <[email protected]>
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The flexspi on different SoCs may have different number of LUTs.
So involve lut_num in nxp_fspi_devtype_data to make distinguish.
This patch prepare for the adding of imx8ulp.
Fixes: ef89fd56bdfc ("arm64: dts: imx8ulp: add flexspi node")
Cc: [email protected]
Signed-off-by: Haibo Chen <[email protected]>
Reviewed-by: Frank Li <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>
(Picked from linux 190b7e2efb1ed8435fc7431d9c7a2447d05d5066)
Signed-off-by: Jonathan Currier <[email protected]>
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QSPI driver performs chip select operation before every read/write
access. During this operation, driver needs to enable and disable
the QSPI controller. This may cause data loss if there is inadvertent
halting of any ongoing read/write operation. To avoid this scenario,
waiting for the QSPI status to be idle before next read/write
operation is implemented.
Signed-off-by: Naresh Kumar Ravulapalli <[email protected]>
Reviewed-by: Tien Fong Chee <[email protected]>
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When using CONFIG_FSL_QSPI_AHB_FULL_MAP the fsl_qspi_default_setup() sets
the BFGENCR register to use the LUT(SEQID_LUT_AHB) before the Look Up Table
is populated.
This result in a situation that after 'sf probe' command any memory
read from qspi using AHB will result in undefined behaviour (hang) untill
first 'sf read' op is executed.
Move the BFGENCR write to fsl_qspi_prepare_lut() to ensure that the setup
is consistent. AHB reads will use the default LUT(index 0) setup by previous
boot stage untill the first read op.
Signed-off-by: Pawel Kochanowski <[email protected]>
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Adding quirk to disable STIG mode since cadence controller has
issue for read/write using the STIG mode. STIG mode is enabled
by default since 2023.04 for small read/write(<8bytes).
Updated STIG mode reading from dev_get_driver_data by assigning
to platdata struct before read quirks variable.
The STIG mode is disabled for normal read case and enabled
for QSPI Jedec ID read/write since it requires STIG read/write.
Porting from linux implementation
https://lore.kernel.org/all/20241204063338.296959-1-niravkumar
[email protected]/T/
Signed-off-by: Boon Khai Ng <[email protected]>
Reviewed-by: Tien Fong Chee <[email protected]>
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https://source.denx.de/u-boot/custodians/u-boot-microblaze
AMD/Xilinx/FPGA changes for v2025.07-rc1
AMD/Xilinx:
- Synchronize enums around tcm_mode
- Access bootmode registers via firmware interface
- Setup default values for DEBUG_UART
- Fix dfu alt buffer clearing
- Convert loadpdi command to fpga
- Fix board detection code
- Minor defconfig updates
Versal:
- Wire multi_boot register
Versal Gen 2:
- Enable missing drivers
- Wire i2c FRU decoding at start
- Wire saving variables to different locations
- Disable default DEBUG_UART
- Wire USB/UFS boot and fix access via firmware interface
- Minor fixes
ZynqMP/Kria:
- Enable mkfwumdata
- Topic board update
- Enhance binman configurations
- Kria usb update
BuR:
- Add multiple Zynq based boards
cadence_ospi:
- Enable device reset
fpga:
- Add support for loading bitstream for Altera SoCs
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Add Airoha SPI NAND driver to permit usage of attached SNAND on the
Airoha AN7581 SoC. While SPI controller supports DMA transation, due to
U-Boot limitation we currently limit it to single command in Manual
mode.
Signed-off-by: Christian Marangi <[email protected]>
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Add support for flash device reset via OSPI controller
instead of using GPIO, as OSPI IP has device reset
feature on Versal Gen2 platform. Also add compatible
string for Versal Gen2 platform.
Signed-off-by: Venkatesh Yadav Abbarapu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michal Simek <[email protected]>
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Add missing configuration of chip select polarity. Default polarity is LOW,
which satisfies most cases but some devices require HIGH polarity and will
not work.
Signed-off-by: Svyatoslav Ryhel <[email protected]>
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Greg Malysa <[email protected]> says:
This series adds all of the supported peripheral drivers for the sc5xx
series of SoCs from Analog Devices and other drivers that are used by
the evaluation kits, such as a GPIO expander used by the EZLITE carrier
boards. This series passes gitlab CI tests.
Link: https://lore.kernel.org/r/[email protected]
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This adds support for the ADI-specific SPI driver present in the ADI
SC5xx line of SoCs. This IP block is distinct from the QSPI/OSPI block
that uses the Cadence driver. Both may be used at once with appropriate
pin muxing configuration.
Co-developed-by: Greg Malysa <[email protected]>
Signed-off-by: Greg Malysa <[email protected]>
Co-developed-by: Angelo Dureghello <[email protected]>
Signed-off-by: Angelo Dureghello <[email protected]>
Co-developed-by: Ian Roberts <[email protected]>
Signed-off-by: Ian Roberts <[email protected]>
Co-developed-by: Piotr Wojtaszczyk <[email protected]>
Signed-off-by: Piotr Wojtaszczyk <[email protected]>
Signed-off-by: Vasileios Bimpikas <[email protected]>
Signed-off-by: Utsav Agarwal <[email protected]>
Signed-off-by: Arturs Artamonovs <[email protected]>
Signed-off-by: Oliver Gaskell <[email protected]>
Signed-off-by: Nathan Barrett-Morrison <[email protected]>
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https://source.denx.de/u-boot/custodians/u-boot-at91 into next
First set of u-boot-at91 features for the 2025.07 cycle:
This feature set includes improvements on the atmel-quadspi driver, a
fix for the nand driver, and improvements on the pinctrl driver to be
able to use the Linux DT (also sync on the DT side as well).
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When 3-wire mode is claimed on the bus, use the MOSI (output) pin to
receive data. In this mode, since the transfer can only be either TX
or RX, return -EINVAL if both are required at the same time.
Signed-off-by: Hironori KIKUCHI <[email protected]>
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Report spi clk speed and make use of `log_ret()`.
Signed-off-by: Alexander Dahl <[email protected]>
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The qspi controller on sama5d2 and sam9x60 supports "classic" SPI mode
without spi-mem enhancements and accelerations, very similar to the old
SPI controller on sam9g20 or the modern flexcom controllers of the same
SoC family.
Register interface differs somewhat, especially because only one
hardware controlled CS line is supported. Some fields are missing, some
are in different registers, but in principal it works similar. So code
is very much inspired by the old atmel-spi driver.
Tested on sam9x60 with a non-mainline driver to configure an FPGA.
Signed-off-by: Alexander Dahl <[email protected]>
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Switching between Serial Memory Mode (SMM) and (classic) SPI mode is a
preparation for implementing .xfer() in the future.
Signed-off-by: Alexander Dahl <[email protected]>
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The Serial Memory Mode (SMM) is enabled with atmel_qspi_set_cfg() on
each invocation of atmel_qspi_exec_op(). Setting SMM through
atmel_qspi_init() at probe time is redundant.
Removing the SMM setting at probe time should therefore 1) be safe to do
and 2) allows for setting it to a different value in a future
implementation of .xfer() which needs to disable SMM.
Signed-off-by: Alexander Dahl <[email protected]>
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Port these commits:
- v6.11-rc5-90-g329ca3eed4a9a ("spi: atmel-quadspi: Avoid overwriting delay register settings")
- v6.12-rc1-1-g162d9b5d2308c ("spi: atmel-quadspi: Fix wrong register value written to MR").
- v6.13-rc2-27-gf663898d047a7 ("spi: atmel-quadspi: Factor out switching to Serial Memory Mode to function")
Cc: Csókás Bence <[email protected]>
Signed-off-by: Alexander Dahl <[email protected]>
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Port changes from a 4 piece patch series from Linux kernel v5.10, merged
with v5.10-rc1-83-gc732b7567d869 ("Merge series "spi: atmel-quadspi: Fix
AHB memory accesses" from Tudor Ambarus …").
Port the single fix v5.15-rc1-14-g09134c5322df9 ("spi: Fixed division by
zero warning").
Reduces differences between linux and u-boot driver.
Cc: Tudor Ambarus <[email protected]>
Cc: Yoshitaka Ikeda <[email protected]>
Signed-off-by: Alexander Dahl <[email protected]>
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Most other spi-mem drivers also depend on SPI_MEM. Fixes this build
error:
arm-v5te-linux-gnueabi-ld.bfd: drivers/spi/atmel-quadspi.o: in function `atmel_qspi_supports_op':
/mnt/data/adahl/src/u-boot/drivers/spi/atmel-quadspi.c:460: undefined reference to `spi_mem_default_supports_op'
make[1]: *** [/mnt/data/adahl/src/u-boot/Makefile:1821: u-boot] Error 1
Signed-off-by: Alexander Dahl <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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This is inside of an 'if DM_SPI' block, and thus always true.
Signed-off-by: Alexander Dahl <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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Add missing prototype to fix the sparse warning,
warning: no previous prototype for 'cadence_qspi_flash_reset'
[-Wmissing-prototypes].
Fixes: 6d234a79e9 ("cadence_qspi: Refactor the flash reset functionality")
Signed-off-by: Venkatesh Yadav Abbarapu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michal Simek <[email protected]>
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If the least significant bit of the address is set to one when
using the DDR protocol for data transfer then the results are
indeterminate for few flash devices. To fix this the least
significant bit of the address is set to zero.
Signed-off-by: Padmarao Begari <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michal Simek <[email protected]>
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Call spi_mem_default_supports_op() in supports_op to honor the
slave's supported single/dual/quad mode settings.
Signed-off-by: SkyLake.Huang <[email protected]>
Signed-off-by: Weijie Gao <[email protected]>
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Change devfdt_get_addr_ptr to dev_read_addr_ptr to support DT live tree.
Signed-off-by: Weijie Gao <[email protected]>
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Alexander Dahl <[email protected]> says:
Hello,
two patches for header issues I came across when working on (Q)SPI
drivers for atmel boards.
Link: https://lore.kernel.org/r/[email protected]
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The get_timer function returns an unsigned long which may be calculated
from the ARM system counter. This counter is reset only on a cold reset.
U-boot divides this counter down to a 1000 Hz counter that will cross
the 32bit barrier after a bit more than 49 days. Assigning the value to
an unsigned int will truncate it on 64bit systems.
Passing this truncated value back to the get_timer function will return
a very large value that is certainly larger than the timeout and so will
go down the error path and besides stopping U-Boot will lead to messages
like
"SPI: QSPI is still busy after poll for 5000 ms."
Signed-off-by: Ronald Wahl <[email protected]>
Cc: Vignesh R <[email protected]>
Cc: Pratyush Yadav <[email protected]>
Reviewed-by: Vignesh Raghavendra <[email protected]>
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First try dropping this was with commit 37434db29be4 ("spi: atmel: Drop
atmel_spi.h") back in 2018 which was reverted not much later with commit
5270df283676 ("Revert "spi: atmel: Drop atmel_spi.h"").
Second try dropping this was in 2020 with commit beeb34ac0cc6 ("spi:
atmel: Drop atmel_spi.h"), but that only moved all the definitions into
the source file and did not remove the header file.
Currently all of the definitions in the header file are (still)
contained in the source file, and the header file is include nowhere.
Fixes: beeb34ac0cc6 ("spi: atmel: Drop atmel_spi.h")
Signed-off-by: Alexander Dahl <[email protected]>
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Update recent parallel memory support code to move to log_debug instead
of debug as per logging in U-Boot documentation
Signed-off-by: Ibai Erkiaga <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michal Simek <[email protected]>
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Prepare v2025.01-rc5
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The mxc_get_clock function is around for compatibility with older
drivers that are not clock aware. In this case asking for the clk for
MXC_CSPI_CLK does not take into account there are multiple SPI busses on
modern IMX SoC's and it will return the clock for the first bus which
may not be used or configured.
In the case you are not using the first bus you will not get the proper
clock. Fix this by obtaining the clock rate from the bus clock.
This resolves an invalid SPI clock frequency configuration for SPI2 on a
board where SPI1 is not used.
Signed-off-by: Tim Harvey <[email protected]>
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The correct spelling is R-Car, including the dash, update the usage.
Kconfig strings and comment changes only, no functional change.
Signed-off-by: Marek Vasut <[email protected]>
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As the flash reset is handled in spi nor core, removing the
flash reset functionality. As the configuration like tristate
and hysterisis need to be enabled by the cdo. Handle the flash
reset only for mini u-boot case.
Rename the "cadence_qspi_versal_flash_reset" to generic name
"cadence_qspi_flash_reset" as this can be used by other platforms
as well.
Signed-off-by: Venkatesh Yadav Abbarapu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michal Simek <[email protected]>
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