Set the speed requested through mpc8xx_spi_set_speed() instead
of hardcoding a fixed speed.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
On CPM, the RISC core is a lot more efficiant when doing transfers
in 16-bits chunks than in 8-bits chunks, but unfortunately the
words need to be byte swapped.
So, for large tranfers with an even size, allocate a temporary
buffer and byte-swap data before and after transfer.
This change allows setting higher speed for transfer. For instance
on an MPC 8xx (CPM1 comms RISC processor), the documentation tells
that transfer in byte mode at 1 kbit/s uses 0.200% of CPM load
at 25 MHz while a word transfer at the same speed uses 0.032%
of CPM load. This means the speed can be 6 times higher in
word mode for the same CPM load.
For small transfers, the load reduction is not worth the CPU load
required to allocate the temporary buffer, so do it only when data
size is over 64 bytes.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Perform multiple transfer of size MAX_BUFFER when the data to be
transferred is longer than MAX_BUFFER.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
SDMA configuration register needs to be set up only once and doesn't
belong to drivers. Also, the value to be used is different on mpc885.
So do the init in cpu_init_f() with 0x40 for mpc885 and 0x1 for others.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
xfer ops can be passed a NULL input or output buffer. At the
time being the driver ignores it and overwrites memory at 0.
Define a dummy buffer and use it when either input or output
buffer is NULL. Bail out when both are NULL as it shouldn't.
Also increase MAX_BUFFER len to 32k as the current is pretty
low.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Since commit 773ad4ebb1 ("spi, mpc8xx: Add support for chipselect via
GPIO and fixups"), DM_GPIO is required for 8xx SPI.
Add the missing dependency to avoid build failures.
Fixes: 773ad4ebb1 ("spi, mpc8xx: Add support for chipselect via GPIO and fixups")
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
The read-only mode is currently supported but only for 16b-aligned
buffers. For unaligned buffers, the last byte will be read in RW mode
right now, which isn't what is desired. Instead, let's put the
controller back into RO mode for that last byte and skip any write in
the xfer loop.
This is required for 3-wire SPI mode where PICO/POCI lanes are shorted
on HW level. This incidentally the recommended design for RK806 PMIC for
RK3588 products.
Cc: Quentin Schulz <foss+uboot@0leil.net>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
These SoCs have two SPI controllers that are quite similar to the SPI
on previous Allwinner SoCs. The main difference is that new SoCs
don't have a clock divider (SPI_CCR register) inside SPI IP.
Instead SPI sample mode should be configured depending on the input clock.
For now SPI input clock source selection is not supported by this driver,
and only HOSC@24MHz can be used as input clock. Therefore, according to
the, manual we could change the SPI sample mode from delay half
cycle(default) to normal.
This patch adds a quirk for this kind of SPI controllers
Signed-off-by: Maksim Kiselev <bigunclemax@gmail.com>
Tested-by: Sam Edwards <CFSworks@gmail.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Rename rmobile.h to renesas.h because all the chips are made
by Renesas, while only a subset of them is from the R-Mobile
line.
Use the following command to perform the rename:
"
$ git grep -l 'include.*rmobile.h' | \
xargs -I {} sed -i '/include.*rmobile.h/ s@rmobile.h@renesas.h@g' {}
"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Paul Barker <paul.barker.ct@bp.renesas.com>
Rename RMOBILE_CPU_TYPE_* to RENESAS_CPU_TYPE_* because all
the chips are made by Renesas, while only a subset of them is
from the R-Mobile line.
Use the following command to perform the rename:
"
$ git grep -l '\<RMOBILE_CPU_TYPE_[A-Z0-9]\+\>' | \
xargs -I {} sed -i 's@\<RMOBILE\(_CPU_TYPE_[A-Z0-9]\+\)\>@RENESAS\1@g' {}
"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Paul Barker <paul.barker.ct@bp.renesas.com>
Rename rmobile_get_cpu_rev_*() to renesas_get_cpu_rev_*() because
all the chips are made by Renesas, while only a subset of them is
from the R-Mobile line.
Use the following command to perform the rename:
"
$ git grep -l '\<rmobile_get_cpu_rev_\(integer\|fraction\)\>' | \
xargs -I {} sed -i 's@\<rmobile_get_cpu_rev_\(integer\|fraction\)\>@renesas_get_cpu_rev_\1@g' {}
"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Paul Barker <paul.barker.ct@bp.renesas.com>
Rename rmobile_get_cpu_type() to renesas_get_cpu_type() because
all the chips are made by Renesas, while only a subset of them
is from the R-Mobile line.
Use the following command to perform the rename:
"
$ git grep -l '\<rmobile_get_cpu_type\>' | \
xargs -I {} sed -i 's@\<rmobile_get_cpu_type\>@renesas_get_cpu_type@g' {}
"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Paul Barker <paul.barker.ct@bp.renesas.com>
Recent i.MX8MP DTs use new fsl,imx6ul-ecspi compatible string instead
of the fsl,imx51-ecspi compatible string. Add the new compatible string
to fix ECSPI operation on i.MX8MP.
For details, see Linux:
48d74376fb68 ("arm64: dts: imx8mp: update ecspi compatible and clk")
8eb1252bbedf ("spi: imx: remove ERR009165 workaround on i.mx6ul")
Fixes: 451799a6ce ("arm: dts: imx8mp: Sync the DT with kernel 6.4-rc4")
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Support RPC SPI on R8A779H0 V4M SoC.
Reviewed-by: Paul Barker <paul.barker.ct@bp.renesas.com>
Signed-off-by: Hai Pham <hai.pham.ud@renesas.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
The current implementation encounters issues when testing data ranging
from 0 to 8 bytes. This was confirmed through testing with both ISSI
(IS25WX256) and Micron (MT35XU02G) Flash exclusively in SDR mode.
Upon investigation, it was observed that utilizing the
"SPI_NOR_OCTAL_READ" flag and attempting to read less than 8 bytes in
STIG mode results in a read failure, leading to a compare test failure.
To resolve this issue, the CMD_4BYTE_FAST_READ opcode is now utilized
instead of CMD_4BYTE_OCTAL_READ, specifically in SDR mode.
This is based on patch series:
https://lore.kernel.org/all/cover.1701853668.git.tejas.arvind.bhumkar@amd.com/
Signed-off-by: Tejas Bhumkar <tejas.arvind.bhumkar@amd.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
If even one byte is lost due to Rx FIFO overflow then we will never
exit the read loop. Because the (priv->rx != priv->rx_end) condition will
be always true.
Let's check if Rx FIFO overflow occurred and exit the read loop
in this case.
Signed-off-by: Maksim Kiselev <bigunclemax@gmail.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
These files include <common.h> twice. Start by removing the second
inclusion of the file.
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
We are not iterating CQSPI_REG_RETRY, we are waiting 'timeout' ms, since
day 1.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Add the xfer callback which is used by the MMC_SPI driver and generally by
the dm_spi_xfer callback.
Signed-off-by: Mayuresh Chitale <mchitale@ventanamicro.com>
Tested-by: Love Kumar <love.kumar@amd.com>
Link: https://lore.kernel.org/r/20231116164336.140171-3-mchitale@ventanamicro.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
Modify start_transfer and related functions to take a udevice parameter
as input instead of spi_slave. This is needed so that start_transfer can
be used directly via the xfer callback. Also fix a compiler warning.
Signed-off-by: Mayuresh Chitale <mchitale@ventanamicro.com>
Tested-by: Love Kumar <love.kumar@amd.com>
Link: https://lore.kernel.org/r/20231116164336.140171-2-mchitale@ventanamicro.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
Currently spi driver gets flash parameter from first subnode.
Few boards have more than one flash with different parameters
and selection of flash is done by on board switch settings.
In such case, uboot needs to be recompiled with updated
device tree to align with board switch settings.
This patch allows to select flash node at runtime.
Boards those are supporting multiple flashes
needs to implement cadence_qspi_get_subnode function and return correct
flash node.
Cc: Apurva Nandan <a-nandan@ti.com>
Signed-off-by: Udit Kumar <u-kumar1@ti.com>
Reviewed-by: Neha Malcom Francis <n-francis@ti.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
When build for arm64 target, comipler reports the following warning:
drivers/spi/bcm63xx_hsspi.c: In function ‘bcm63xx_hsspi_xfer_dummy_cs’:
include/linux/kernel.h:184:17: warning: comparison of distinct pointer
types lacks a cast
184 | (void) (&_min1 == &_min2); \
| ^~
drivers/spi/bcm63xx_hsspi.c:298:22: note: in expansion of macro ‘min’
298 | size_t curr_step = min(step_size, data_bytes);
This change fix this warning by casting the data_bytes to size_t.
Fixes: 0e144ec38c ("spi: bcm63xx-hsspi: Add prepend mode support")
Signed-off-by: William Zhang <william.zhang@broadcom.com>
To quote the author:
This series imports generic versions of ioread_rep/iowrite_rep and
reads/writes from Linux. Some cleanup is done to make sure that all
platforms have proper defines for implemented functions and there are no
redefinitions.
Directly including asm-generic/io.h may break build because it will
cause redefenition of generic io macros if linux/io.h gets included
later, hence replace it with direct include of linux/io.h
Signed-off-by: Igor Prusov <ivprusov@salutedevices.com>
Now that we have time conversion defines from in time.h there is no need
for each driver to define their own version.
Signed-off-by: Igor Prusov <ivprusov@salutedevices.com>
Reviewed-by: Svyatoslav Ryhel <clamor95@gmail.com> # tegra
Reviewed-by: Eugen Hristev <eugen.hristev@collabora.com> #at91
Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org> #qcom geni
Reviewed-by: Stefan Bosch <stefan_b@posteo.net> #nanopi2
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
This file uses errno return values in functions, so include <errno.h>
here rather than rely on indirect inclusion.
Signed-off-by: Tom Rini <trini@konsulko.com>
The following patch migrates the usage of debug and printf functions
to the relevant logging function as per U-Boot DM guidelines.
Additionally some of the debugging statements have been rearanged for
a more meaningfull debug experience.
aarch64-linux-gnu-size reports 229 bytes less when debug is enabled at
file level, while is just 5bytes more when disabled.
Signed-off-by: Ibai Erkiaga <ibai.erkiaga-elorza@amd.com>
Link: https://lore.kernel.org/r/20231013123739.2757979-1-ibai.erkiaga-elorza@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
When 64-bit address is passed only lower 32-bit address
is getting updated. Program the upper 32-bit address in the
DMA destination memory address MSBs register.
Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
Link: https://lore.kernel.org/r/20231011031515.4151-1-venkatesh.abbarapu@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
Similar change was done by commit b4c2c151b1 ("Kconfig: Remove all
default n/no options") and again sync is required.
default n/no doesn't need to be specified. It is default option anyway.
Signed-off-by: Michal Simek <michal.simek@amd.com>
Reviewed-by: Svyatoslav Ryhel <clamor95@gmail.com> # tegra
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Angelo Dureghello <angelo@kernel-space.org>
Add A1 SPIFC driver from Linux. Slightly modified to use u-boot driver
framework and accommodate to lack of ioread32_rep/iowrite32_rep.
Based on Linux version 6.6-rc4
Signed-off-by: Igor Prusov <IVPrusov@sberdevices.ru>
Signed-off-by: Martin Kurbanov <mmkurbanov@sberdevices.ru>
Reviewed-by: Simon Glass <sjg@chromium.org>
Link: https://lore.kernel.org/r/20231024225140.366571-2-ivprusov@sberdevices.ru
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
[trini: Drop <common.h> as it's not needed]
With commit 793e623011 ("spi: mtk_spim: get spi clk rate only once") a
new system to calculate the SPI clocks has been added.
Unfortunately, the do_div macro overrides the global priv->pll_clk_rate
field. This will cause to have a reduced clock rate on each subsequent
SPI call.
Signed-off-by: Valerio 'ftp21' Mancini <ftp21@ftp21.eu>
Signed-off-by: Nicolò Veronese <nicveronese@gmail.com>
Reset the FLSHxCR1 registers to default value. ROM may set the register
value and it affects the SPI NAND normal functions.
Signed-off-by: Han Xu <han.xu@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
This old patch was marked as deferred. Bring it back to life, to continue
towards the removal of common.h
Move this out of the common header and include it only where needed.
Signed-off-by: Simon Glass <sjg@chromium.org>
Cache related issues are seen with small sized data reads.
Due to this, proper data is not read. Also some times sf probe
fails randomly. To workaround this issue, invalidate dcache after read DMA
is triggered.
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/20230915031759.28889-3-venkatesh.abbarapu@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
Before DMA read, ideally cache should be invalidated, so that data from
memory will be updated to cache after DMA is completed. But
flush_dcache_range is being used which is incorrect. Change
flush_dcache_range to invalidate_dcache_range.
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/20230915031759.28889-2-venkatesh.abbarapu@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
The last user of the NEEDS_MANUAL_RELOC has been removed in commit
26af162ac8 ("arch: m68k: Implement relocation")
Remove now unused NEEDS_MANUAL_RELOC code.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
In u-boot we don't use IRQ. Instead, we poll busy bit in SPI_STATUS.
However these IRQ enable bits may be set in previous boot stage (BootROM).
If we leave these bits not cleared, although u-boot has disabled IRQ and
nothing will happen, the linux kernel may encounter panic during
initializing the spim driver due to IRQ event happens before IRQ handler
is properly setup.
This patch clear IRQ bits to prevent this from happening.
Signed-off-by: SkyLake.Huang <skylake.huang@mediatek.com>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
We don't really need to switch clk rate during operating SPIM controller.
Get clk rate only once at driver probing.
Signed-off-by: SkyLake.Huang <skylake.huang@mediatek.com>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Enable flash reset functionality for Versal NET platform.
In cadence_qspi.c there is weak function defined for reset, hence remove
the check for config, so that it will work for Versal and Versal NET
platforms.
Add register defines in Versal NET hardware.h for mini U-Boot flash
reset.
Add read_delay initialization for Versal NET also.
Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@amd.com>
Link: https://lore.kernel.org/r/20230614120452.21019-1-ashok.reddy.soma@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
