On the i.MX8M Mini, ret = clk_set_rate() sets ret to the value of the
rate the clock was able to set. When checking for errors, it only
checks that it is not NULL. Since positive numbers are not errors,
only check for negative numbers when handling errors.
Fixes: 383fded70c ("spi: nxp_fspi: new driver for the FlexSPI controller")
Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Pratyush Yadav <p.yadav@ti.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
The set_speed() callback should configure the bus speed, make it so.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
qspi:
- Support for dual/quad mode
- Fix speed handling
clk:
- Add clock enable function for zynq/zynqmp/versal
gem:
- Enable clock for Versal
- Fix error path
- Fix mdio deregistration path
fpga:
- Fix buffer alignment for ZynqMP
xilinx:
- Fix reset reason clearing in ZynqMP
- Show silicon version in SPL for Zynq/ZynqMP
- Fix DTB selection for ZynqMP
- Rename zc1275 to zcu1275 to match DT name
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Merge tag 'xilinx-for-v2021.04-rc3' of https://gitlab.denx.de/u-boot/custodians/u-boot-microblaze
Xilinx changes for v2021.04-rc3
qspi:
- Support for dual/quad mode
- Fix speed handling
clk:
- Add clock enable function for zynq/zynqmp/versal
gem:
- Enable clock for Versal
- Fix error path
- Fix mdio deregistration path
fpga:
- Fix buffer alignment for ZynqMP
xilinx:
- Fix reset reason clearing in ZynqMP
- Show silicon version in SPL for Zynq/ZynqMP
- Fix DTB selection for ZynqMP
- Rename zc1275 to zcu1275 to match DT name
If zynqmp_qspi_set_speed() is called multiple times with the same speed,
then on the second call it will skip recalculating the baud_rate_val as
it assumes the speed is already configured correctly. But it will still
write the baud_rate_val to the configuration register and call
zynqmp_gqspi_set_tapdelay(). Because it skipped recalculating the
baud_rate_val, it will use the initial value of 0 . This causes the
driver to run at maximum speed which for many spi flashes is too fast and
causes data corruption.
Instead only write out a new baud_rate_val if we have calculated the
correct baud_rate_val.
This opens up another issue with the "if (speed == 0)", we don't save
off the new plat->speed_hz value when setting the baud rate on the
speed=0 path. Instead mimic what the Linux zynqmp gqspi driver does, and
have speed==0 just use the same calculation as a normal speed. That will
cause the baud_rate_val to use the slowest speed possible, which is the
safest option.
Signed-off-by: Brandon Maier <brandon.maier@rockwellcollins.com>
CC: jagan@amarulasolutions.com
CC: michal.simek@xilinx.com
CC: Ashok Reddy Soma <ashokred@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
A lot of Xilinx drivers are checking -ENOSYS which means that clock driver
doesn't have enable function. Remove this checking from drivers and create
dummy enable function as was done for clk_fixed_rate driver by
commit 6bf6d81c11 ("clk: fixed_rate: add dummy enable() function").
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
The LS1088 requires the same QUADSPI_QURIK_BASE_INTERNAL
workaround as the LS208x and also has a 64 byte TX buffer.
With the previous settings SPI-NAND reads over AHB were
corrupted.
Fixes: 91afd36f38 ("spi: Transform the FSL QuadSPI driver to use the SPI MEM API")
Signed-off-by: Mathew McBride <matt@traverse.com.au>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
Adapted from kernel commit b0177aca7aea
From: Michael Walle <michael@walle.cc>
Make use of a core helper to ensure the desired width is respected
when calling spi-mem operators.
Otherwise only the SPI controller will be matched with the flash chip,
which might lead to wrong widths. Also consider the width specified by
the user in the device tree.
Fixes: 91afd36f38 ("spi: Add a driver for the Freescale/NXP QuadSPI controller")
Signed-off-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20200114154613.8195-1-michael@walle.cc
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Mathew McBride <matt@traverse.com.au> [adapt for U-Boot]
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
The dm_spi_ops.xfer() API does not support dual and quad SPI modes. It
also doesn't allow the zynqmp_gqspi driver to calculate the correct
number of dummy cycles for some NOR ops (as doing so also requires the
buswidth).
Port the zynqmp_gqspi driver to spi_controller_mem_ops, which gives us
the buswidth values to correctly support all SNOR_PROTO_X_X_X commands
and to properly calculate dummy cycles.
Signed-off-by: Brandon Maier <brandon.maier@rockwellcollins.com>
CC: jagan@amarulasolutions.com
CC: michal.simek@xilinx.com
CC: Ashok Reddy Soma <ashokred@xilinx.com>
Reviewed-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
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>
This patch adds support for MTK SPI NOR controller, which you
can see on mt7622 & mt7629.
1. This controller is designed only for SPI NOR. We can't adjust
its bus clock dynamically. Set clock in dts instead.
2. This controller only supports 1-1-1 write mode.
3. Remove mtk_snor_match_read() since upper SPI-MEM layer already
handles command.
4. sf read/write/update commands are tested with this driver.
Signed-off-by: SkyLake.Huang <skylake.huang@mediatek.com>
This patch adds spi controller support for MediaTek MT7620 SoC.
The SPI controller supports two chip selects. These two chip selects are
implemented as two separate register groups, but they share the same bus
(DI/DO/CLK), only CS pins are dedicated for each register group.
Appearently these two register groups cannot operates simulataneously so
they are implemented as one controller.
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
In case the clock framework is enabled, enable the SPI controller clock
and obtain max frequency from the clock framework.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Cc: Stefano Babic <sbabic@denx.de>
The CSPI/ECSPI register bits do not differ between newer SoCs, instead
of having multiple copies of the same thing for each iMX SoC, define
the bits in the driver.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Cc: Stefano Babic <sbabic@denx.de>
Something was wrong in the merge process into the mainline.
Some added patches access driver structure fields and functions that
have been modified by previous patches.
The patch renames:
- dev_get_platdata to dev_get_plat
- dev_get_uclass_platdata to dev_get_uclass_plat
- ofdata_to_platdata to of_to_plat
- plat_data_alloc_size to plat_auto
- priv_auto_alloc_size to priv_auto
- video_uc_platdata to video_uc_plat
Signed-off-by: Dario Binacchi <dariobin@libero.it>
Change debug/pr_* to log_* or dev_* macro and define LOG_CATEGORY.
Remove the "%s:" __func__ header as it is managed by dev macro
(dev->name is displayed) or log macro (CONFIG_LOGF_FUNC).
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Change debug/pr_debug to log_debug or dev_dbg macro and
define LOG_CATEGORY.
Remove the "%s:" __func__ header as it is managed by dev macro
(dev->name is displayed) or log macro (CONFIG_LOGF_FUNC).
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
McSPI IP provides per CS specific speed and mode selection. Therefore it
is possible to apply these settings only after CS is known. But
set_speed and set_mode can be called without bus being claimed, this
would lead driver to set up wrong CS (or previously used CS).
Fix this by apply set_speed and set_mode only if bus is already claimed.
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Tested-by: Miquel Raynal <miquel.raynal@bootlin.com>
struct ti_qspi_priv->max_hz is declared as unsigned int, so the following
error path check will always be false, even when "spi-max-frequency"
property is invalid/missing:
priv->max_hz = fdtdec_get_int(blob, node, "spi-max-frequency", -1);
if (priv->max_hz < 0) {
...
}
Replace the fdtdec call with dev_read_u32_default() and use 0 as the
default value. Error out if max_hz is zero.
Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
arm64:
- DT updates
microblaze:
- Add support for NOR device support
spi:
- Fix unaligned data write issue
nand:
- Minor code change
xilinx:
- Fru fix in limit calculation
- Fill git repo link for all Xilinx boards
video:
- Add support for seps525 spi display
tools:
- Minor Vitis file support
cmd/common
- Minor code indentation fixes
serial:
- Uartlite debug uart initialization fix
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Merge tag 'xilinx-for-v2021.04' of https://gitlab.denx.de/u-boot/custodians/u-boot-microblaze into next
Xilinx changes for v2021.04
arm64:
- DT updates
microblaze:
- Add support for NOR device support
spi:
- Fix unaligned data write issue
nand:
- Minor code change
xilinx:
- Fru fix in limit calculation
- Fill git repo link for all Xilinx boards
video:
- Add support for seps525 spi display
tools:
- Minor Vitis file support
cmd/common
- Minor code indentation fixes
serial:
- Uartlite debug uart initialization fix
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
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Merge tag 'dm-pull-5jan21' of git://git.denx.de/u-boot-dm into next
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
We use the U_BOOT_ prefix (i.e. U_BOOT_DRIVER) to declare a driver but
in every other case we just use DM_. Update the alias macros to use the
DM_ prefix.
We could perhaps rename U_BOOT_DRIVER() to DM_DRIVER(), but this macro
is widely used and there is at least some benefit to indicating it us a
U-Boot driver, particularly for code ported from Linux. So for now, let's
keep that name.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present ofnode is present in the device even if it is never used. With
of-platdata this field is not used, so can be removed. In preparation for
this, change the access to go through inline functions.
Signed-off-by: Simon Glass <sjg@chromium.org>
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>
With the new of-platdata, these need to be available to dt_platdata.c
so must be in header files. Move them.
Signed-off-by: Simon Glass <sjg@chromium.org>
Most drivers use these access methods but a few do not. Update them.
In some cases the access is not permitted, so mark those with a FIXME tag
for the maintainer to check.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Pratyush Yadav <p.yadav@ti.com>
When unaligned 3 bytes data write operation is performed, 3rd byte
is being over written by 1st byte of 3 bytes data. This patch
fixes it.
Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
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>
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: 60e2809a84 ("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>
Introduce sandbox_spi_get_{speed, mode} public interface to retrieve the
sandbox spi bus internal state. They are meant to be used in sandbox spi
testcases.
Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Implement sandbox_spi_set_{speed, mode} routines, to be able to keep track
of the current bus speed/mode. This will help determine whether the values
passed from dm_spi_claim_bus() are valid.
Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Place a second spi slave on the sandbox_spi bus, to be used by the
spi_claim_bus() testcase we are about to introduce. We need to make sure
that jumping between slaves calling spi_claim_bus() sets the bus speed and
mode appropriately. Use different max-hz and mode properties for this new
slave.
Also, update sandbox_spi cs_info call to allow activity on CS0/CS1 and
adapt dm_test_spi_find() testcase for this new setup.
Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Commit 1289e96797 ("sandbox: spi: Drop command-line SPI option") dropped
support for specifying SPI devices on the command line, removing the only
user of sandbox_spi_parse_spec(). Remove the function too.
Fixes: 1289e96797 ("sandbox: spi: Drop command-line SPI option")
Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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>
Use the new sequence number in all cases. Drop the rockchip case because
the sequence number should be 0 anyway, and assigning to the sequence
number is not permitted.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present various drivers etc. access the device's 'seq' member directly.
This makes it harder to change the meaning of that member. Change access
to go through a function instead.
The drivers/i2c/lpc32xx_i2c.c file is left unchanged for now.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add SPI Flash controller driver for Cortina Access
CAxxxx SoCs
Signed-off-by: Pengpeng Chen <pengpeng.chen@cortina-access.com>
Signed-off-by: Alex Nemirovsky <alex.nemirovsky@cortina-access.com>
CC: Vignesh R <vigneshr@ti.com>
CC: Tom Rini <trini@konsulko.com>
[jagan: rebase on master]
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
The designware ssi device has "broken" chip select behaviour [1], and needs
specific manipulation to use the built-in chip select. The existing fix is
to use an external GPIO for chip select, but typically the K210 has SPI3
directly connected to a flash chip with dedicated pins. This makes it
impossible to use the spi_xfer function to use spi, since the CS is
de-asserted in between calls. This patch adds an implementation of
exec_op, which gives correct behaviour when reading/writing spi flash.
This patch also rearranges the headers to conform to U-Boot style.
[1] https://lkml.org/lkml/2015/12/23/132
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Tested-by Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
CTRLR0 can have several different layouts depending on the specific device
(dw-apb-ssi vs dwc-ssi), and specific parameters set during synthesis.
Update the driver to support three specific configurations: dw-apb-ssi with
SSI_MAX_XFER_SIZE=16, dw-apb-ssi with SSI_MAX_XFER_SIZE=32, and dwc-ssi.
dw-apb-ssi is the version of the device on Altera/Intel SoCFPGAs, MSCC
SoCs, and Canaan Kendryte K210 SoCs. This is the only version this driver
supported before this change. The register layout before version 3.23a is:
| 31 .. 16 |
| other stuff |
| 15 .. 10 | 9 .. 8 | 7 .. 6 | 5 .. 4 | 3 .. 0 |
| other stuff | TMOD | MODE | FRF | DFS |
Note that DFS (Data Frame Size) is only 4 bits, limiting transfers to data
frames of 16 bits or less.
In version 3.23a, the SSI_MAX_XFER_SIZE parameter was introduced. This
parameter defaults to 16 (resulting in the same layout as prior versions),
but may also be set to 32. To allow setting longer data frame sizes, a new
DFS_32 register was introduced:
| 31 .. 21 | 20 .. 16 |
| other stuff | DFS_32 |
| 15 .. 10 | 9 .. 8 | 7 .. 6 | 5 .. 4 | 3 .. 0 |
| other stuff | TMOD | MODE | FRF | all zeros |
The old DFS field no longer controls the data frame size. To detect this
layout, we try writing 0xF to DFS. If we read back 0x0, then this device
has SSI_MAX_XFER_SIZE=32.
dwc-ssi is the version of the device on Intel Keem Bay SoCs and Canaan
Kendryte K210 SoCs. The layout of ctrlr0 is:
| 31 .. 16 |
| other stuff |
| 15 .. 12 | 11 .. 10 | 9 .. 8 | 7 .. 6 | 4 .. 0 |
| other stuff | TMOD | MODE | FRF | DFS_32 |
The semantics of the fields have not changed since the previous version.
However, SSI_MAX_XFER_SIZE is effectively always 32.
To support these different layouts, we model our approach on the one
which the Linux kernel has taken. During probe, the driver calls an init
function stored in driver_data. This init function is responsible for
determining the layout of CTRLR0, and supplying the update_cr0 function.
The style of and information behind this commit is based on the Linux MMIO
driver for these devices. Specific reference was made to the series adding
support for Intel Keem Bay SoCs [1].
[1] https://lore.kernel.org/linux-spi/20200505130618.554-1-wan.ahmad.zainie.wan.mohamad@intel.com/
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
This should reduce the size of the struct, and also groups more similar
fields together.
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Tested-by Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
A few registers had slightly different names from what is in the datasheet.
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Using an fdt-specific function causes problems when compiled with a live
tree.
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Tested-by Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
This property is named differently than other SPI drivers with the same
property, as well as the property as used in Linux.
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Tested-by Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
This allows different log levels to be enabled or disabled depending on the
desired level of verbosity. In particular, it allows for general debug
information to be printed while excluding more verbose logging which may
interfere with timing.
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
The resting state of MOSI is high when nothing is driving it. If we drive
it low while recieving, it looks like we are transmitting 0x00 instead of
transmitting nothing. This can confuse slaves (like SD cards) which allow
new commands to be sent over MOSI while they are returning data over MISO.
The return of MOSI from 0 to 1 at the end of recieving a byte can look like
a start bit and a transmission bit to an SD card. This will cause the card
to become out-of-sync with the SPI device, as it thinks the device has
already started transmitting two bytes of a new command. The mmc-spi driver
will not detect the R1 response from the SD card, since it is sent too
early, and offset by two bits. This patch fixes transfer errors when using
SD cards with dw spi.
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
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>
