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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 <eoin.dickson@microchip.com>
Acked-by: Leo Yu-Chi Liang <ycliang@andestech.com>
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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 <prasad.kummari@amd.com>
Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
Link: https://lore.kernel.org/r/20250702053953.640046-1-venkatesh.abbarapu@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
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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 <ashok.reddy.soma@amd.com>
Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
Link: https://lore.kernel.org/r/20250702065717.3871435-1-venkatesh.abbarapu@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
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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 <tejas.arvind.bhumkar@amd.com>
Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
Link: https://lore.kernel.org/r/20250704040444.671604-1-venkatesh.abbarapu@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
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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 <ilias.apalodimas@linaro.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
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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 <dullfire@yahoo.com>
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Add the device specific driver data, and the clock configuration.
Signed-off-by: Jonathan Currier <dullfire@yahoo.com>
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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: stable@kernel.org
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20240905094338.1986871-3-haibo.chen@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
(Picked from linux 190b7e2efb1ed8435fc7431d9c7a2447d05d5066)
Signed-off-by: Jonathan Currier <dullfire@yahoo.com>
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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 <nareshkumar.ravulapalli@altera.com>
Reviewed-by: Tien Fong Chee <tien.fong.chee@intel.com>
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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 <pkochanowski@sii.pl>
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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
.l.rabara@intel.com/T/
Signed-off-by: Boon Khai Ng <boon.khai.ng@altera.com>
Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
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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 <ansuelsmth@gmail.com>
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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 <venkatesh.abbarapu@amd.com>
Link: https://lore.kernel.org/r/20250311041317.2992862-1-venkatesh.abbarapu@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
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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 <clamor95@gmail.com>
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Greg Malysa <malysagreg@gmail.com> 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/20250226173150.13198-1-malysagreg@gmail.com
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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 <malysagreg@gmail.com>
Signed-off-by: Greg Malysa <malysagreg@gmail.com>
Co-developed-by: Angelo Dureghello <angelo.dureghello@timesys.com>
Signed-off-by: Angelo Dureghello <angelo.dureghello@timesys.com>
Co-developed-by: Ian Roberts <ian.roberts@timesys.com>
Signed-off-by: Ian Roberts <ian.roberts@timesys.com>
Co-developed-by: Piotr Wojtaszczyk <piotr.wojtaszczyk@timesys.com>
Signed-off-by: Piotr Wojtaszczyk <piotr.wojtaszczyk@timesys.com>
Signed-off-by: Vasileios Bimpikas <vasileios.bimpikas@analog.com>
Signed-off-by: Utsav Agarwal <utsav.agarwal@analog.com>
Signed-off-by: Arturs Artamonovs <arturs.artamonovs@analog.com>
Signed-off-by: Oliver Gaskell <Oliver.Gaskell@analog.com>
Signed-off-by: Nathan Barrett-Morrison <nathan.morrison@timesys.com>
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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 <kikuchan98@gmail.com>
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Report spi clk speed and make use of `log_ret()`.
Signed-off-by: Alexander Dahl <ada@thorsis.com>
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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 <ada@thorsis.com>
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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 <ada@thorsis.com>
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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 <ada@thorsis.com>
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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 <csokas.bence@prolan.hu>
Signed-off-by: Alexander Dahl <ada@thorsis.com>
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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 <tudor.ambarus@microchip.com>
Cc: Yoshitaka Ikeda <ikeda@nskint.co.jp>
Signed-off-by: Alexander Dahl <ada@thorsis.com>
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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 <ada@thorsis.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
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This is inside of an 'if DM_SPI' block, and thus always true.
Signed-off-by: Alexander Dahl <ada@thorsis.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
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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 <venkatesh.abbarapu@amd.com>
Link: https://lore.kernel.org/r/20250122135334.1201562-1-venkatesh.abbarapu@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
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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 <padmarao.begari@amd.com>
Link: https://lore.kernel.org/r/20250106095120.800753-1-padmarao.begari@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
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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 <skylake.huang@mediatek.com>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
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Change devfdt_get_addr_ptr to dev_read_addr_ptr to support DT live tree.
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
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Alexander Dahl <ada@thorsis.com> 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/20250115161621.1551826-1-ada@thorsis.com
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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 <ronald.wahl@legrand.com>
Cc: Vignesh R <vigneshr@ti.com>
Cc: Pratyush Yadav <p.yadav@ti.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
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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 <ada@thorsis.com>
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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 <ibai.erkiaga-elorza@amd.com>
Link: https://lore.kernel.org/r/20250107145110.2855213-1-ibai.erkiaga-elorza@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
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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 <tharvey@gateworks.com>
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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 <marek.vasut+renesas@mailbox.org>
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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 <venkatesh.abbarapu@amd.com>
Link: https://lore.kernel.org/r/20241108063537.13180-1-venkatesh.abbarapu@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
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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>
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Moving the hw_reset function from the controller driver to
the NOR framework has caused the OSPI reset not to be triggered
in the Cadence driver's probe function. As a result, reading the
flash ID during SPI calibration is incorrect, and the
CQSPI_REG_RD_DATA_CAPTURE is set with an invalid value.This makes
it unable to read the flash ID properly.
To solve this problem, it's suggested to skip SPI calibration and
instead retrieve the read_delay directly from the device tree.
Skipping SPI calibration doesn't bring harm since there's no need
for the flash golden values stored during SPI calibration.
Instead, they are now read during the spi_nor_read_id call in the
NOR framework.
Signed-off-by: Tejas Bhumkar <tejas.arvind.bhumkar@amd.com>
Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
Link: https://lore.kernel.org/r/20241114062045.17581-1-venkatesh.abbarapu@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
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The 5d40b3d384dc ("mtd: spi-nor: Add parallel and stacked memories support")
adds new SPI bus flags, but also introduces a completely new set of
SPI bus flags in another location. The existing flags field is type
u8, while the new separate flags are BIT(8) and higher. Use of those
new flags triggers integer overflow.
Drop the newly introduced flags which were never used anywhere in the
code. Move the one remaining flag which was used in the correct place
and change it from BIT(8) to BIT(6) so it fits the u8 flags.
Fixes: 5d40b3d384dc ("mtd: spi-nor: Add parallel and stacked memories support")
Addresses-Coverity-ID: 510804 Extra high-order bits
Reported-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
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The SPI_ADVANCE description does not explain what the switch does.
It does not have anything to do with any advanced functionality, it
only gates off support for stacked and parallel SPI NORs. Rename the
Kconfig symbol, update description, and move it right next to Xilinx
hardware as it seems to be specific to this hardware. Make sure the
symbol is also protected by if DM_SPI in Kconfig.
Fixes: 5d40b3d384dc ("mtd: spi-nor: Add parallel and stacked memories support")
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
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Add missing prototype to fix the sparse warning,
warning: no previous prototype for 'update_stripe'
[-Wmissing-prototypes].
Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
Link: https://lore.kernel.org/r/20241016044402.18052-1-venkatesh.abbarapu@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
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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.
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Use PHASE_ as the symbol to select a particular XPL build. This means
that SPL_TPL_ is no-longer set.
Update the comment in bootstage to refer to this symbol, instead of
SPL_
Signed-off-by: Simon Glass <sjg@chromium.org>
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Use the new symbol to refer to any 'SPL' build, including TPL and VPL
Signed-off-by: Simon Glass <sjg@chromium.org>
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This should now refer to xPL rather than SPL, so update it throughout
the tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Rename this function to indicate that it refers to any xPL phase.
Signed-off-by: Simon Glass <sjg@chromium.org>
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John Watts <contact@jookia.org> says:
I'm doing some SPI work so I tried to compile all the drivers on my
sunxi board to try and avoid some regressions. This failed, so here are
some fixes for this.
Link: https://lore.kernel.org/r/20240427-spikconfig-v1-0-8a54772522f4@jookia.org
Signed-off-by: Tom Rini <trini@konsulko.com>
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