Dave Gerlach [Thu, 16 Jul 2020 04:39:59 +0000 (23:39 -0500)]
dm: soc: Introduce soc_ti_k3 driver for TI K3 SoCs
Introduce an soc_ti_k3_driver that allows identification and selection
of SoC specific data based on the JTAG ID register for device
identification, as described for AM65x[0] and J721E[1] devices.
Dave Gerlach [Thu, 16 Jul 2020 04:39:57 +0000 (23:39 -0500)]
dm: soc: Introduce UCLASS_SOC for SOC ID and attribute matching
Introduce UCLASS_SOC to be used for SOC identification and attribute
matching based on the SoC ID info. This allows drivers to be provided
for SoCs to retrieve SoC identifying information and also for matching
device attributes for selecting SoC specific data.
This is useful for other device drivers that may need different
parameters or quirks enabled depending on the specific device variant in
use.
Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Dave Gerlach [Thu, 16 Jul 2020 04:39:56 +0000 (23:39 -0500)]
doc: Add new doc for soc ID driver model
Add a new documentation file for UCLASS_SOC and its usage to describe
the SoC Device ID framework that allows SoC identification and device
data matching.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Nicolas Boichat [Mon, 13 Jul 2020 02:50:00 +0000 (10:50 +0800)]
patman: Make sure sendemail.suppresscc is (un)set correctly
Setting sendemail.suppresscc to all or cccmd leads to --cc-cmd
parameter being ignored, and emails going either nowhere, or
just to the To: line maintainer.
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org>
Michal Simek [Fri, 10 Jul 2020 11:16:48 +0000 (13:16 +0200)]
ARM: rmobile: Switch back to fdtdec_setup_memory/banksize_fdt()
The commit 361377dbdbc9 ("ARM: rmobile: Merge prior-stage firmware DT
fragment into U-Boot DT on Gen3") reverted changes introduced by commit 175f5027345c ("ARM: renesas: Configure DRAM size from ATF DT fragment")
that's why there is no reason to use functions with _fdt() suffix because
parameter is gd->fdt_blob as is already for functions without _fdt()
suffix.
Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org>
The unsupported Commit-xxx option are silently skipped
and removed as 're_remove=Commit-\w*', this patch adds
warning message in this case to detect misspelled issue
for the 2 supported options:
Commit-notes:
Commit-changes:
For example: the final 's' is missing (Commit-note:)
NB: no issue for Series-xxx option as only the supported
options are accepted (see valid_series in series.py)
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
The function fdt_find_regions look in the exclude list for each
property, even if the name is NULL. It could happen if the fit
image is corrupted. On sandbox, it generates a segfault.
To avoid this issue, if the name of a property is NULL, we report
an error and avoid looking in the exclude list.
Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 10 Jul 2020 00:39:45 +0000 (18:39 -0600)]
binman: Add support for generating a FIT
FIT (Flat Image Tree) is the main image format used by U-Boot. In some
cases scripts are used to create FITs within the U-Boot build system. This
is not ideal for various reasons:
- Each architecture has its own slightly different script
- There are no tests
- Some are written in shell, some in Python
To help address this, add support for FIT generation to binman. This works
by putting the FIT source directly in the binman definition, with the
ability to adjust parameters, etc. The contents of each FIT image come
from sub-entries of the image, as is normal with binman.
Simon Glass [Fri, 10 Jul 2020 00:39:43 +0000 (18:39 -0600)]
mkimage: Allow updating the FIT timestamp
Normally the FIT timestamp is created the first time mkimage is run on a
FIT, when converting the source .its to the binary .fit file. This
corresponds to using the -f flag. But if the original input to mkimage is
a binary file (already compiled) then the timestamp is assumed to have
been set previously.
Add a -t flag to allow setting the timestamp in this case.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Fri, 10 Jul 2020 00:39:42 +0000 (18:39 -0600)]
binman: Allow zero-length entries to overlap
Some binary blobs unfortunately obtain their position in the image from
other binary blobs, such as Intel's 'descriptor'. In this case we cannot
rely on packing to work. It is not possible to produce a valid image in
any case, due to the missing blobs.
Allow zero-length overlaps so that this does not cause any problems.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Fri, 10 Jul 2020 00:39:38 +0000 (18:39 -0600)]
binman: Allow external binaries to be missing
Sometimes it is useful to build an image even though external binaries are
not present. This allows the build system to continue to function without
these files, albeit not producing valid images.
U-Boot does with with ATF (ARM Trusted Firmware) today.
Add a new flag to binman to request this behaviour.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Fri, 10 Jul 2020 00:39:36 +0000 (18:39 -0600)]
binman: Add an etype for external binary blobs
It is useful to be able to distinguish between ordinary blobs such as
u-boot.bin and external blobs that cannot be build by the U-Boot build
system. If the external blobs are not available for some reason, then we
know that a value image cannot be built.
Introduce a new 'blob-ext' entry type for that.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Fri, 10 Jul 2020 00:39:33 +0000 (18:39 -0600)]
binman: Adjust pylibfdt for incremental build
If the pylibfdt shared-object file is detected, then Python assumes that
the libfdt.py file exists also.
Sometimes when an incremental build aborts, the shared-object file is
built but the libfdt.py is not. The only way out at this point is to use
'make mkproper', or similar.
Fix this by removing the .so file before it is built. This seems to make
Python rebuild everything.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Fri, 10 Jul 2020 00:39:31 +0000 (18:39 -0600)]
binman: Add support for calling mkimage
As a first step to integrating mkimage into binman, add a new entry type
that feeds data into mkimage for processing and incorporates that output
into the image.
Simon Glass [Fri, 10 Jul 2020 00:39:30 +0000 (18:39 -0600)]
binman: Set a default toolpath
When binman is run from 'make check' it is given a toolpath so that the
latest tools (e.g. mkimage) are used. When run manually with no toolpath,
it relies on the system mkimage. But this may be missing or old.
Make some effort to find the built-from-soruce version by looking in the
current directory and in the builds created by 'make check'.
Simon Glass [Fri, 10 Jul 2020 00:39:29 +0000 (18:39 -0600)]
binman: Specify the toolpath when running test coverage
At present binman's test coverage runs without a toolpath set. This means
that the system tools will be used. That may not be correct if they are
out of date or missing and this can result in a reduction in test coverage
below 100%.
Simon Glass [Fri, 10 Jul 2020 00:39:28 +0000 (18:39 -0600)]
binman: Correct the search patch for pylibfdt
Now that binman uses tools/ as its base directory for importing modules,
the path to the pylibfdt build by U-Boot is incorrect. Fix it with a new
path.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Fri, 10 Jul 2020 00:39:26 +0000 (18:39 -0600)]
binman: Output errors to stderr
At present binman outputs errors to stdout which means that fails are
effectively silent when printed by buildman, for example. Fix this by
outputing errors to stderr.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Mon, 6 Jul 2020 03:41:55 +0000 (21:41 -0600)]
patman: Add a 'test' subcommand
At present we use --test to indicate that tests should be run. It is
better to use a subcommand for list, like binman. Change it and adjust
the existing code to fit under a 'send' subcommand, the default.
Give this subcommand the same default arguments as the others.
Simon Glass [Mon, 6 Jul 2020 03:41:54 +0000 (21:41 -0600)]
patman: Allow different commands
At present patman only does one thing so does not have any comments. We
want to add a few more command, so create a sub-parser for the default
command ('send').
Simon Glass [Mon, 6 Jul 2020 03:41:52 +0000 (21:41 -0600)]
patman: Allow skipping patches at the end
The -s option allows skipping patches at the top of the branch. Sometimes
there are commits at the bottom that need to be skipped. At present it is
necessary to count the number of commits and then use -c to tell patman
how many to process.
Add a -e option to easily skip a number of commits at the bottom of the
branch.
Simon Glass [Mon, 6 Jul 2020 03:41:50 +0000 (21:41 -0600)]
patman: Add a test that uses gitpython
It is convenient to use gitpython to create a real git repo for testing
patman's operation. Add a test for this. So far it just checks that patman
produces the right number of patches for a branch.
Simon Glass [Mon, 6 Jul 2020 03:41:49 +0000 (21:41 -0600)]
patman: Move main code out to a control module
To make testing easier, move the code out from main into a separate
'control' module and split it into four parts: setup, preparing patches,
checking patches and emailing patches.
Add comments and fix a few code-style issues while we are here.
Simon Glass [Fri, 17 Jul 2020 14:48:31 +0000 (08:48 -0600)]
x86: mtrr: Enhance 'mtrr' command to list MTRRs on any CPU
Update this command so it can list the MTRRs on a selected CPU. If
'-c all' is used, then all CPUs are listed.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Fri, 17 Jul 2020 14:48:30 +0000 (08:48 -0600)]
x86: mp: Add more comments to the module
Add a description of how this module works and also some missing function
comments.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Fri, 17 Jul 2020 14:48:29 +0000 (08:48 -0600)]
x86: mtrr: Update 'mtrr' to allow setting MTRRs on any CPU
Add a -c option to mtrr to allow any CPU to be updated with this command.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Fri, 17 Jul 2020 14:48:28 +0000 (08:48 -0600)]
x86: mtrr: Restructure so command execution is in one place
At present do_mtrr() does the 'list' subcommand at the top and the rest
below. Update it to do them all in the same place so we can (in a later
patch) add parsing of the CPU number for all subcommands.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Fri, 17 Jul 2020 14:48:27 +0000 (08:48 -0600)]
x86: mtrr: Update the command to use the new mtrr calls
Use the multi-CPU calls to set the MTRR values. This still supports only
the boot CPU for now.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Fri, 17 Jul 2020 14:48:26 +0000 (08:48 -0600)]
x86: mtrr: Add support for writing to MTRRs on any CPU
To enable support for the 'mtrr' command, add a way to perform MTRR
operations on selected CPUs.
This works by setting up a little 'operation' structure and sending it
around the CPUs for action.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Simon Glass [Fri, 17 Jul 2020 14:48:25 +0000 (08:48 -0600)]
x86: mtrr: Update MTRRs on all CPUs
When the boot CPU MTRRs are updated, perform the same update on all other
CPUs so they are kept in sync.
This avoids kernel warnings about mismatched MTRRs.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Fri, 17 Jul 2020 14:48:24 +0000 (08:48 -0600)]
x86: coral: Update the memory map
This currently excludes the temporary memory used to start up the APs.
Add it.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Simon Glass [Fri, 17 Jul 2020 14:48:23 +0000 (08:48 -0600)]
x86: Don't enable SMP in SPL
SMP should be set up in U-Boot where possible, not SPL. Disable it in SPL.
For 64-bit U-Boot we should find a way to allow SMP operations in U-Boot,
but this is somewhat more complicated. For now that is disabled too.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Simon Glass [Fri, 17 Jul 2020 14:48:22 +0000 (08:48 -0600)]
x86: mtrr: Use MP calls to list the MTRRs
Update the mtrr command to use mp_run_on_cpus() to obtain its information.
Since the selected CPU is the boot CPU this does not change the result,
but it sets the stage for supporting other CPUs.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Fri, 17 Jul 2020 14:48:21 +0000 (08:48 -0600)]
x86: mp: Add iterators for CPUs
It is convenient to iterate through the CPUs performing work on each one
and processing the result. Add a few iterator functions which handle this.
These can be used by any client code. It can call mp_run_on_cpus() on
each CPU that is returned, handling them one at a time.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Fri, 17 Jul 2020 14:48:20 +0000 (08:48 -0600)]
x86: mp: Park CPUs before running the OS
With the new MP features the CPUs are no-longer parked when the OS is run.
Fix this by calling a special function to park them, just before the OS is
started.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Fri, 17 Jul 2020 14:48:19 +0000 (08:48 -0600)]
x86: mp: Allow running functions on multiple CPUs
Add a way to run a function on a selection of CPUs. This supports either
a single CPU, all CPUs, just the main CPU or just the 'APs', in Intel
terminology.
It works by writing into a mailbox and then waiting for the CPUs to notice
it, take action and indicate they are done.
When SMP is not yet enabled, this just calls the function on the main CPU.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Fri, 17 Jul 2020 14:48:18 +0000 (08:48 -0600)]
x86: Set the SMP flag when MP init is complete
Set this flag so we can track when it is safe to use CPUs other than the
main one.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Fri, 17 Jul 2020 14:48:17 +0000 (08:48 -0600)]
global_data: Add a generic global_data flag for SMP state
Allow keeping track of whether all CPUs have been enabled yet. This allows
us to know whether other CPUs need to be considered when updating
CPU-specific settings such as MTRRs on x86.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Fri, 17 Jul 2020 14:48:16 +0000 (08:48 -0600)]
x86: mp: Support APs waiting for instructions
At present the APs (non-boot CPUs) are inited once and then parked ready
for the OS to use them. However in some cases we want to send new requests
through, such as to change MTRRs and keep them consistent across CPUs.
Change the last state of the flight plan to go into a wait loop, accepting
instructions from the main CPU.
Drop cpu_map since it is not used.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Fri, 17 Jul 2020 14:48:15 +0000 (08:48 -0600)]
x86: cpu: Remove unnecessary #ifdefs
Drop some #ifdefs that are not needed or can be converted to compile-time
checks.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Fri, 17 Jul 2020 14:48:14 +0000 (08:48 -0600)]
x86: mp_init: Adjust bsp_init() to return more information
This function is misnamed since it does not actually init the BSP. Also
it is convenient to adjust it to return a little more information.
Rename and update the function, to allow it to return the BSP CPU device
and number, as well as the total number of CPUs.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Fri, 17 Jul 2020 14:48:13 +0000 (08:48 -0600)]
x86: mp_init: Set up the CPU numbers at the start
At present each CPU is given a number when it starts itself up. While this
saves a tiny amount of time by doing the device-tree read in parallel, it
is confusing that the numbering happens on the fly.
Move this code into mp_init() and do it at the start.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Fri, 17 Jul 2020 14:48:12 +0000 (08:48 -0600)]
x86: mtrr: Fix 'ensable' typo
Fix a typo in the command help.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Fri, 17 Jul 2020 14:48:11 +0000 (08:48 -0600)]
x86: mp_init: Drop the num_cpus static variable
This does not need to be global across all functions in this file. Pass a
parameter instead.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Fri, 17 Jul 2020 14:48:10 +0000 (08:48 -0600)]
x86: mp_init: Switch parameter names in start_aps()
These parameters are named differently from elsewhere in this file. Switch
them to avoid confusion.
Also add comments to this function.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Simon Glass [Fri, 17 Jul 2020 14:48:09 +0000 (08:48 -0600)]
x86: mp_init: Avoid declarations in header files
The functions used by the flight plan are declared in the header file but
are not used in any other file.
Move the flight plan steps down to just above where it is used so that we
can make these function static.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Fri, 17 Jul 2020 14:48:08 +0000 (08:48 -0600)]
x86: Move MP code into mp_init
At present the 'flight plan' for CPUs is passed into mp_init. But it is
always the same. Move it into the mp_init file so everything is in one
place. Also drop the SMI function since it does nothing. If we implement
SMIs, more refactoring will be needed anyway.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Fri, 17 Jul 2020 14:48:07 +0000 (08:48 -0600)]
x86: mp_init: Switch to livetree
Update this code to use livetree calls instead of flat-tree.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Stefan Roese [Tue, 30 Jun 2020 10:08:58 +0000 (12:08 +0200)]
mips: octeon: Add minimal Octeon 3 EBB7304 EVK support
This patch adds very basic minimal support for the Marvell Octeon 3
CN73xx based EBB7304 EVK. Please note that the basic Octeon port does
not support DDR3/4 initialization yet. To still use U-Boot on with this
port, the L2 cache (4MiB) is used as RAM. This way, U-Boot can boot
to the prompt on this board.
Stefan Roese [Tue, 30 Jun 2020 10:33:17 +0000 (12:33 +0200)]
mips: octeon: use mips_mach_early_init() to copy to L2 cache
This patch adds the code to copy itself from bootrom location to a
different location (TEXT_BASE) to the Octeon platform. Its used in
this case to copy the complete U-Boot image into L2 cache, which
greatly improves the bootup time - especially in regard to the
very long and complex DDR4 init code.
The Kconfig symbol CONFIG_MIPS_MACH_EARLY_INIT is enabled with this
patch for Octeon.
Aaron Williams [Tue, 30 Jun 2020 10:08:56 +0000 (12:08 +0200)]
mips: octeon: Initial minimal support for the Marvell Octeon SoC
This patch adds very basic support for the Octeon III SoCs. Only
CFI parallel NOR flash and UART is supported for now.
Please note that the basic Octeon port does not include the DDR3/4
initialization yet. This will be added in some follow-up patches
later. To still use U-Boot on with this port, the L2 cache (4MiB on
Octeon III CN73xx) is used as RAM. This way, U-Boot can boot to the
prompt on such boards.
Signed-off-by: Aaron Williams <awilliams@marvell.com> Signed-off-by: Stefan Roese <sr@denx.de>
Stefan Roese [Tue, 30 Jun 2020 10:33:16 +0000 (12:33 +0200)]
mips: Add CONFIG_MIPS_MACH_EARLY_INIT for very early mach init code
This patch adds the optional call to mips_mach_early_init() to start.S
at a very early stage. Its disabled per default. It can be used for
very early machine / platform specific init code. Its called very
early and at this stage the PC is allowed to differ from the linking
address (CONFIG_TEXT_BASE) as no absolute jump has been performed until
this call.
It will be used by thje Octeon platform.
Signed-off-by: Stefan Roese <sr@denx.de> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
mips: add config options for generic cache setup code
Add an own Kconfig symbol for the initial disabling of caches
invoked from generic start code.
Also add an own Kconfig symbols for the initialization of caches
invoked from generic start code.
Until now both code paths could only be disabled with
CONFIG_SKIP_LOWLEVEL_INIT. But this is not flexible enough for
RAM boot scenarios like EJTAG or SPL payload or for machines
which don't require cache initialization or which want to
provide their own cache implementation.
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Stefan Roese <sr@denx.de> Tested-by: Stefan Roese <sr@denx.de>
Since commit 703ec9ddf965 ("MIPS: Stop building position independent code")
the relocation code was completely reworked and removed from start.S.
Remove some left-overs of the old code.
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Stefan Roese <sr@denx.de> Tested-by: Stefan Roese <sr@denx.de>
Stefan Roese [Tue, 30 Jun 2020 10:33:19 +0000 (12:33 +0200)]
mips: cache: Make invalidate_dcache_range() weak to enable overwrite
This patch adds __weak to invalidate_dcache_range() in lib/cache.c. This
makes it possible to overwrite this function by a platforms specific
version, which will be done for Octeon.
Stefan Roese [Thu, 14 May 2020 09:59:04 +0000 (11:59 +0200)]
mips: cache: Make flush_cache() weak to enable overwrite
This patch adds __weak to flush_cache() in lib/cache.c. This makes it
possible to overwrite this function by a platforms specific version,
like done with the Octeon base port.
Stefan Roese [Fri, 5 Jun 2020 08:29:25 +0000 (10:29 +0200)]
mips: reloc: Change R_MIPS_NONE to catch pre-reloc BSS usage
This patch changes the R_MIPS_NONE define from 0 to a magic value. This
makes it possible to better detect any forbidden pre-relocation usage
of BSS variables, as they are often zero'ed and then relocation is
stopped too early.
Additionally the error message is improved to also print the faulting
address. This helps finding the root-cause for this breakage by
comparing this address with the values in System.map.
This patch helps a lot when working on pre-relocation code, like the
Octeon DDR init code, where such variables have hit me multiple times
now.
Signed-off-by: Stefan Roese <sr@denx.de> Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Cc: Aaron Williams <awilliams@marvell.com> Cc: Chandrakala Chavva <cchavva@marvell.com>
Stefan Roese [Thu, 14 May 2020 09:59:05 +0000 (11:59 +0200)]
mips: time: Only compile the weak get_tbclk() when needed
This patch opts-out the compilation of get_tbclk() if
CONFIG_SYS_MIPS_TIMER_FREQ is not defined. This is used on the Octeon
platform, where the weak get_tbclk() function is overwritten by its
platform specific one.
Tom Rini [Fri, 17 Jul 2020 20:08:54 +0000 (16:08 -0400)]
Merge branch '2020-07-17-misc-fixes'
A large number of assorted fixes, including but not limited to:
- Correct fixdep and CONFIG_IS_ENABLED(...)
- lz4 on big endian
- Assorted LMB hardening
- Remove bd_t typedef
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