The comment before the transmission loop in conjunction with the
definition of SPI_TIMEOUT as 1000 implies that the loop is supposed to
have a timeout value of 1000 ms. But since there is no mdelay(1) or
similar in the loop body, the loop just runs 1000 times, without regard
for the time elapsed.
To correct this, use the standard get_timer functionality to properly
time out the loop after 1000 ms.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
Decreasing the bit length and increasing the write data pointer should
be done when there are more than 32 bit of data, not 16 bit.
This did not produce incorrect behavior, because the only time where the
two checks produce different outcomes is the case of 16 < bitlen < 32,
and in this case the subsequent transmission is the last one regardless,
hence the additional bit length decrease and write data pointer increase
has no effect anyway.
Still, the correct check is the check for "bitlen > 32", so correct this
behavior.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
Minize the time the adapter is disabled (via SPI_MODE_EN
clearing/setting) to just the character length setting, and only set up
the temporary data writing variable right before we need it, so there is
a more clear distinction between setting up the SPI adapter, and setting
up the data to be written.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
Instead of having a table right before the code implementing the length
setting for documentation, have inline comments for the if branches
actually implementing the length setting described table's entries
(which is readable thanks to the set_char_len function).
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
The variable "char_size" holds the number of bits to be transferred in
the current loop iteration. A better name would be "xfer_bitlen", which
we rename this variable to.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
Introduce the to_prescale_mod and set_char_len inline functions to make
the code more readable.
Note that the added "if (bitlen > 16)" check does not change the
semantics of the current code, and hence only preserves the current
error (this will be fixed in a later patch in the series).
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
The transmission loop starts with setting some variables, which are only
used inside the loop. Reduce the scope to the loop to make the
declaration and initialization of these variables coincide.
In the case of char_size this also always initializes the variable
immediately with the final value actually used in the loop (instead of
the placeholder value 32).
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
We do nothing in the loop if the "not empty" event was not detected. To
simplify the logic, check if this is the case, and skip the execution of
the loop early to reduce the nesting level and flag checking.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
Get rid of the is_read variable, and just keep the state of the "not
empty" and "not full" events in two boolean variables within the loop
body.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
Instead of having a nested if block, just have two branches within the
overarching if block to eliminate one nesting level.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
Accesses to the register map are currently done by directly reading and
writing the structure.
Switch to the appropriate IO accessors instead.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
Replace pre-processor defines with proper enums, and use the BIT macro
where applicable.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
Replace the function name with a "%s" format string and the __func__
variable in debug statements (as proposed by checkpatch).
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
There are three variables that have camel-case names, which is not the
preferred naming style.
Give those variables more compliant names instead.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
There are some comments on the same line as the code they document. Put
comments above the code lines they document, so the line length is not
unnecessarily increased.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
The function signatures in the driver are quite long as is. Use short
type names (uint etc.) to make them more readable.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
With the recent SPI changes, the ids8313 board won't compile anymore.
Until further information from the manufacturer, disable SPI support, so
that the board will at least compile again.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Acked-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
The bulk of these changes are an effort to unify Tegra186 builds with
builds of prior 64-bit Tegra generations. On top of that there are
various improvements that allow data (such as the MAC address and boot
arguments) to be passed through from early firmware to the kernel on
boot.
When introduced this limit was an int but was then changed to hex
without noting as much in the prompt nor changing existing users. Put
this back to an int.
Reported-by: Fabio Estevam <festevam@gmail.com>
Tested-by: Fabio Estevam <festevam@gmail.com>
Fixes: 2577015dc5 ("spl: add overall SPL size check")
Signed-off-by: Tom Rini <trini@konsulko.com>
- Include Heinrich's series to move the i.MX board size check function
to be more widely available.
- Include Simon Goldschmidt's patch to make it possible to have a more
accurate SPL size check applied.
This adds a size check for SPL that can dynamically check generated
SPL binaries (including devicetree) for a size limit that ensures
this image plus global data, heap and stack fit in initial SRAM.
Since some of these sizes are not available to make, a new host tool
'spl_size_limit' is added that dumps the resulting maximum size for
an SPL binary to stdout. This tool is used in toplevel Makefile to
implement the size check on SPL binaries.
Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
The SPL image for the Tinker Board has to fit into 32 KiB. This includes
up to 2 KiB for the file header.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
A new configuration variable CONFIG_SPL_SIZE_LIMIT is introduced to define
the board specific maximum size for the SPL file.
Use Makefile function size_check() to implement the test.
Depending on the size of CONFIG_SPL_SIZE_LIMIT an error like the following
is thrown:
spl/u-boot-spl.bin exceeds file size limit:
limit: 30720 bytes
actual: 33426 bytes
excess: 2706 bytes
make: *** [Makefile:1663: spl/u-boot-spl.bin] Error 1
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
We currently have duplicate definitions for BOARD_SIZE_CHECK in Makefile
and arch/arm/mach-imx/Makefile.
Move the board size check from arch/arm/mach-imx/Makefile to Makefile.
Depending on the value of CONFIG_BOARD_SIZE_LIMIT an error like an error
like the following is thrown:
u-boot-dtb.imx exceeds file size limit:
limit: 503696 bytes
actual: 509720 bytes
excess: 6024 bytes
make: *** [Makefile:1051: u-boot-dtb.imx] Error 1
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Carve out function size_check from macro BOARD_SIZE_CHECK. This will allow
us to reuse the function for other file size checks.
Depending on the value of CONFIG_BOARD_SIZE_LIMIT an error like the
following is thrown:
u-boot-dtb.img exceeds file size limit:
limit: 409516 bytes
actual: 444346 bytes
excess: 34830 bytes
make: *** [Makefile:1212: u-boot-dtb.img] Error 1
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
In the UEFI context GUIDs are expected to be rendered in upper case.
The patch uses the formerly unused bit 1 of the parameter str_format
of function uuid_bin_to_str() to indicate if we need upper or lower case
output.
Function uuid_string() in vsprint.c is adjusted to correctly set the bit
depending on the print format code.
%pUb: 01020304-0506-0708-090a-0b0c0d0e0f10
%pUB: 01020304-0506-0708-090A-0B0C0D0E0F10
%pUl: 04030201-0605-0807-090a-0b0c0d0e0f10
%pUL: 04030201-0605-0807-090A-0B0C0D0E0F10
Up to this point only a diagnostic message in mount_ubifs() using '%pUB' is
concerned by the change. Further patches are needed to adjust the UEFI
subsystem.
A unit test is provided inside the ut_print command.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This allows to enable Ethernet and use driver for
Synopsys Ethernet QoS device
Signed-off-by: Christophe Roullier <christophe.roullier@st.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Synopsys GMAC 4.20 is used. And Phy mode for eval and disco is RMII
with PHY Realtek RTL8211 (RGMII)
We also support some other PHY config on stm32mp157c
PHY_MODE (MII,GMII, RMII, RGMII) and in normal,
PHY wo crystal (25Mhz and 50Mhz), No 125Mhz from PHY config
Signed-off-by: Christophe Roullier <christophe.roullier@st.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Called to configure Ethernet PHY interface selection and
configure clock selection in RCC Ethernet clock tree.
Signed-off-by: Christophe Roullier <christophe.roullier@st.com>
ETHCK_K is the identifier the kernel clock for ETH in kernel
binding, selected by ETHKSELR / gated by ETHCKEN = BIT(7).
U-Boot driver need to use the same identifier, so change ETHCK
to ETHCK_K.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Christophe Roullier <christophe.roullier@st.com>
Add 2 new checks:
- detect when USB TYPE-C cable is not plugged correctly.
In this case, GND and VBUS pins are connected but not CC1
and CC2 pins.
- detect is an USB Type-C charger supplies more than 3 Amps
which is not compliant with the USB Type-C specification
In these 2 situations, stop the boot process and let red led
blinks forever.
V cc1 | V cc2 | power supply | red led | console message
range (Volts) |range (Volts)| (Amps) | blinks |
--------------|-------------|--------------|---------|-----------------------------------
> 2.15 | < 0.2 | > 3 | for ever| USB TYPE-C charger not compliant with specification
[2.15 - 1.23[ | < 0.2 | 3 | NO | NO
[1.23 - 0.66[ | < 0.2 | 1.5 | 3 times | WARNING 1.5A power supply detected
[0.66 - 0] | < 0.2 | 0.5 | 2 times | WARNING 500mA power supply detected
< 0.2 | < 0.2 | | for ever| ERROR USB TYPE-C connection in unattached mode
> 0.2 | > 0.2 | | for ever| ERROR USB TYPE-C connection in unattached mode
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
This allows to enable WATCHDOG and WDT flags to
be able to reset the watchdog and to support watchdog driver
model.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
This patch adds independent watchdog support for stm32mp157c
in SPL.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
To make adding new entry easier, sort Kconfig entries in
alphabetical order.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Update env_get_location() to be able to save environment into
NOR (SPI_FLASH).
Series-cc: pde, cke, pch, uboot-stm32
Cover-letter:
Add saveenv support for STM32MP1
This series adds saveenv support for STM32MP1 on several boot
devices. STM32MP1 is able to boot on eMMC, sdcard and NOR
(NAND support is not fully supported).
On eMMC and sdcard, environment is saved in EXT4 partition
On NOR, environment is saved in a dedicated partition
On NAND, environment is saved in a UBI volume.
This series:
- enables NAND and NOR support on ev1 board
- enables ENV_IS_IN_SPI_FLASH, ENV_IS_IN_UBI, ENV_IS_IN_EXT4
flags
- fixes get_mtdparts()
- allows to override interface, device and partition for ext4
environment
- updates rule to set ENV_IS_NOWHERE value
- introduce ENV_IS_IN_DEVICE
END
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Add all relative flags needed by ENV_IS_IN_SPI_FLASH
Reserved a 256KB partition in NOR to save the U-Boot
environment.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
When ENV_IS_IN_UBI is enable, get_mtdparts is called before relocation.
During first get_mtdparts() call, mtdparts is not available in environment,
it can be retrieved by calling board_mtdparts_default(), but following
env_set() do nothing as we are before relocation. Finally mtdparts is
still not available in environment.
At second get_mtdparts() call, use_defaults is false, but mtdparts is still
not in environment and is NULL.
Remove use_defaults bool, only mtdparts criteria is useful.
Fixes: commit 5ffcd50612 ("mtd: Use default mtdparts/mtids when not defined
in the environment")
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
In case of several environment location support, env_get_location
is needed to select the correct location depending of the boot
device .
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Enable ENV_IS_IN_EXT4 and all relative flags to be able to
load/save environment in EXT4 partition.
This will allows to load/save environment on both sdcard and eMMC.
As for stm32mp15, bootfs has not the same partition number on sdcard
and on eMMC, we use "auto" key which allows to find the first
partition in device with bootable flag which is partition 4 on sdcard
and partition 2 on eMMC.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Introduce ENV_IS_IN_DEVICE to test if one the
CONFIG_ENV_IS_IN_ is defined and support the command
saveenv even if CONFIG_ENV_IS_NOWHERE is activated
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Allow U-Boot to get default environment for some boot mode
(USB for example), and to select storage location when it is
booting from flash device;
ENVL_NOWHERE is present in env_locations with other one.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
