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Merge tag 'u-boot-atmel-fixes-2019.07-a' of git://git.denx.de/u-boot-atmel
First set of u-boot-atmel fixes for 2019.07 cycle
Now, we have few driver are fully converted into dm and few
are partially converted.
So, update the migration status accordingly.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Support DM in the MPC8xxx SPI driver, and remove the legacy SPI
interface.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
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>
By default the configuration of the PMC is to have an external crystal
connected that requires driving on both XIN and XOUT pins.
The bypass configuration means that only XIN will be used, the SoC will not
do any driving, and the XIN needs to be provided with a proper signal.
This is the MOSCXTBY bit in the PMC main clock generator register.
The SPL needs to properly initialize the PMC registers before switching
to external clock signal and raising the clock to the cruise speed.
Also created Kconfig for this specific configuration.
By default this is disabled.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Support for managing the non-volatile attribute of UEFI variables
is added though we do not have a backend for persistence yet.
Error messages for changes of UEFI variables are provided.
UEFI boottime service implementations are corrected.
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Merge tag 'efi-2019-07-rc4-2' of git://git.denx.de/u-boot-efi
Pull request for UEFI sub-system for v2019.07-rc4-2
Support for managing the non-volatile attribute of UEFI variables
is added though we do not have a backend for persistence yet.
Error messages for changes of UEFI variables are provided.
UEFI boottime service implementations are corrected.
Add an "ethernet" alias that points to the default network interface,
which is the built-in EQoS on Jetson TX2.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Recent versions of DTC have checks for PCI host bridge device tree nodes
that are named something other than "pci" or "pcie". Fix all occurrences
of such nodes for Tegra boards to avoid potential warnings from DTC.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
If early firmware initialized the display hardware and the display
controllers are scanning out a framebuffer (e.g. a splash screen), make
sure to pass information about the memory location of that framebuffer
to the kernel before booting to avoid the kernel from using that memory
for the buddy allocator.
This same mechanism can also be used in the kernel to set up early SMMU
mappings and avoid SMMU faults caused by the display controller reading
from memory for which it has no mapping.
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
If early firmware initialized the display hardware and the display
controllers are scanning out a framebuffer (e.g. a splash screen), make
sure to pass information about the memory location of that framebuffer
to the kernel before booting to avoid the kernel from using that memory
for the buddy allocator.
This same mechanism can also be used in the kernel to set up early SMMU
mappings and avoid SMMU faults caused by the display controller reading
from memory for which it has no mapping.
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Pass the ethernet MAC address to the kernel upon boot. This passes both
the local-mac-address property (as passed to U-Boot from cboot) and the
currently set MAC address via the mac-address property. The latter will
only be set if it is different from the address that was already passed
via the local-mac-address property.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Pass the ethernet MAC address to the kernel upon boot. This passes both
the local-mac-address property (as passed to U-Boot from cboot) and the
currently set MAC address via the mac-address property. The latter will
only be set if it is different from the address that was already passed
via the local-mac-address property.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Note that U-Boot is always chainloaded from cboot starting with L4T
release 28. cboot always loads U-Boot to a fixed address, so making
the builds position independent isn't strictly necessary. However,
position independent builds can be convenient because if U-Boot is
ever loaded to an address different from its link address, it will
still be able to boot.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Read the boot arguments passed by cboot via the /chosen/bootargs
property and store it in the cbootargs environment variable.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
This function will attempt to look up an Ethernet address in the DTB
that was passed in from cboot. It does so by first trying to locate the
default Ethernet device for the board (identified by the "ethernet"
alias) and if found, reads the "local-mac-address" property. If the
"ethernet" alias does not exist, or if it points to a device tree node
that doesn't exist, or if the device tree node that it points to does
not have a "local-mac-address" property or if the value is invalid, it
will fall back to the legacy mechanism of looking for the MAC address
stored in the "nvidia,ethernet-mac" or "nvidia,ether-mac" properties of
the "/chosen" node.
The MAC address is then written to the default Ethernet device for the
board (again identified by the "ethernet" alias) in U-Boot's control
DTB. This allows the device driver for that device to read the MAC
address from the standard location in device tree.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
This is easier to deal with and works just as well for this simple
function.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Tegra186 build are currently dealt with in very special ways, which is
because Tegra186 is fundamentally different in many respects. It is no
longer necessary to do many of the low-level programming because early
boot firmware will already have taken care of it.
Unfortunately, separating Tegra186 builds from the rest in this way
makes it difficult to share code with prior generations of Tegra. With
all of the low-level programming code behind Kconfig guards, the build
for Tegra186 can again be unified.
As a side-effect, and partial reason for this change, other Tegra SoC
generations can now make use of the code that deals with taking over a
boot from earlier bootloaders. This used to be nvtboot, but has been
replaced by cboot nowadays. Rename the files and functions related to
this to avoid confusion. The implemented protocols are unchanged.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Commit 86cf1c8285 ("configs: Migrate CONFIG_NR_DRAM_BANKS") reduced
the number of DRAM banks supported by U-Boot from 1026 to 8 on P2771-000
boards.
However, as explained in commit a9819b9e33 ("ARM: tegra: p2771-000:
increase max DRAM bank count"), the platform can have a large number of
unusable chunks of memory (up to 1024), so a total of 1026 DRAM banks
are needed to describe the worst-case situation.
In practice the number of DRAM banks needed will typically be much
lower, but we should be prepared to properly deal with the worst case.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Resetting the USB device controller on boot is only necessary if the SoC
actually has a UDC controller and U-Boot enables support for it. All the
Tegra boards support UDC via the ChipIdea UDC driver, so make the UDC on
boot workaround depend on the ChipIdea UDC driver.
This prevents a crash on Tegra186 which does not have the ChipIdea UDC.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Tom Rini