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Introduces support for Device Firmware Upgrade (DFU) over PCIe in
U-Boot. Traditionally, the DFU protocol is used over USB, where a
device enters DFU mode and allows a host to upload firmware or binary
images directly via the USB interface. This is a widely adopted and
convenient method for updating firmware.
In the context of Texas Instruments (TI) SoCs, PCIe can be used as a
boot interface in a manner that differs from the conventional
"PCIe Boot" process, which typically refers to booting an OS or
firmware image from an NVMe SSD or other PCIe-attached storage devices.
Instead, TI SoCs can be configured as a PCIe Endpoint, allowing a
connected PCIe Root Complex (host) to transfer images directly into the
device’s memory over the PCIe bus for boot purposes. This mechanism is
analogous to DFU over USB, but leverages the high-speed PCIe link and
does not depend on traditional storage devices.
By extending the DFU framework in U-Boot to support PCIe, it will be
possible to flash images over PCIe. While this implementation is
motivated by TI SoC use cases, the framework is generic and can be
adopted by everyone for platforms that support PCIe Endpoint mode.
Platforms with hardware support for PCIe-based memory loading can use
this to implement PCIe as a boot mode, as well as to enable flashing
and recovery scenarios similar to DFU over USB.
In summary, enable support for:
- DFU-style flashing of firmware/images over PCIe, analogous to existing
USB DFU workflows
- PCIe as a boot mode where a host can load images directly into device
memory using DFU over PCIe
Signed-off-by: Hrushikesh Salunke <[email protected]>
Reviewed-by: Mattijs Korpershoek <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mattijs Korpershoek <[email protected]>
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Rather than having every caller set this up individually, create a
common init function. This allows new fields to be added without the
risk of them being left uninited.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Michael Trimarchi <[email protected]>
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As part of bringing the master branch back in to next, we need to allow
for all of these changes to exist here.
Reported-by: Jonas Karlman <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay
Ethernet"' I failed to notice that b4 noticed it was based on next and
so took that as the base commit and merged that part of next to master.
This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing
changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35.
Reported-by: Jonas Karlman <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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Remove <common.h> from all "commmon/" files and when needed add
missing include files directly.
Signed-off-by: Tom Rini <[email protected]>
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Aligning addresses and sizes causes overhead which is unnecessary when we
are not loading from block devices. Remove bl_len when it is not needed.
For example, on iot2050 we save 144 bytes with this patch (once the rest of
this series is applied):
add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-144 (-144)
Function old new delta
spl_load_simple_fit 920 904 -16
load_simple_fit 496 444 -52
spl_spi_load_image 384 308 -76
Total: Before=87431, After=87287, chg -0.16%
We use panic() instead of BUILD_BUG_ON in spl_set_bl_len because we still
need to be able to compile it for things like mmc_load_image_raw_sector,
even if that function will not be used.
Signed-off-by: Sean Anderson <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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This CONFIG is used but is not given a value by some boards. Use
a default value of 0 explicitly, rather than relying on the 0 value
provided by CONFIG_SPL_LOAD_FIT_ADDRESS
This will allow us to make SPL_LOAD_FIT_ADDRESS depend on SPL_LOAD_FIT
as it should.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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Update my and DPs email address to match current setup.
Signed-off-by: Michal Simek <[email protected]>
Link: https://lore.kernel.org/r/aba5b19b9c5a95608829e86ad5cc4671c940f1bb.1688992543.git.michal.simek@amd.com
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Instead of always retuning success, return actual result of
load_simple_fit_image or spl_parse_image_header, otherwise we
might end up jumping on uninitialized spl_image->entry_point.
Signed-off-by: Nikita Shubin <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
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We ask for CONFIG_SPL_LOAD_FIT_ADDRESS in Kconfig, so we cannot define
it in C as a fall-back. However, this option previously was buried under
"if ... endif" Kconfig logic. Rework a number of config options to now
have more robust dependency lines so that we can ask this address when
needed. With that done, we can remove the fallback in spl_ram.c.
Signed-off-by: Tom Rini <[email protected]>
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This is not needed and we should avoid typedefs. Use the struct instead
and rename it to indicate that it really is a legacy struct.
Signed-off-by: Simon Glass <[email protected]>
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Some SPL functions directly use the binman 'u_boot_any' symbols to get
U-Boot's binman image position. These symbols are declared by the
SPL/TPL_BINMAN_SYMBOLS configs, but they are accessed by macros defined
by just CONFIG_BINMAN. So when BINMAN is enabled and BINMAN_SYMBOLS is
disabled, the code tries to use undeclared symbols and we get an error.
Therefore, any use of 'u_boot_any' symbols in the code is an implicit
dependency on SPL/TPL_BINMAN_SYMBOLS. However, in the current uses
they are meant to be the next phase's values, where that happens to be
U-Boot. In the meantime, helper funcions spl_get_image_pos/size() were
introduced to get these values.
Convert all uses of u_boot_any symbols to these functions, so we only
access these symbols at one place. Make sure they will not use these
symbols when the BINMAN_SYMBOLS configs are disabled, by returning early
in those cases.
Signed-off-by: Alper Nebi Yasak <[email protected]>
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Add the support of image pre load in spl or tpl
when loading an image from ram.
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Philippe Reynes <[email protected]>
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Add parameter spl_boot_device to spl_parse_board_header(), which allows
the implementations to see from which device we are booting and do
boot-device-specific checks of the image header.
Signed-off-by: Pali Rohár <[email protected]>
Signed-off-by: Marek Behún <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
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Signed-off-by: Wolfgang Denk <[email protected]>
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Move this header out of the common header.
Signed-off-by: Simon Glass <[email protected]>
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Move this uncommon header out of the common header.
Signed-off-by: Simon Glass <[email protected]>
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The symbol CONFIG_SPL_DFU_SUPPORT in SPL build has the same
meaning as CONFIG_DFU in regular U-Boot. Drop the _SUPPORT
to allow for cleaner use in code.
Signed-off-by: Andrew F. Davis <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
Acked-by: Lukasz Majewski <[email protected]>
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The patch:
"spl: Weed out CONFIG_SYS_TEXT_BASE usage"
(sha1: 04ce5427bd3914cab8be78513275a20ab878520a)
introduced bug where assigning to u_boot_pos variable wasn't done
which end up in situation where SPL wasn't able to find out
image on the selected address.
Signed-off-by: Michal Simek <[email protected]>
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The SPL loaders assume that the CONFIG_SYS_TEXT_BASE memory location
is available and can be corrupted by loading ie. uImage or fitImage
headers there. Sometimes it could be beneficial to load the headers
elsewhere, ie. if CONFIG_SYS_TEXT_BASE is not yet writable while we
still want to parse the image headers in some local onchip memory to
ie. extract firmware from that image.
Add the possibility to override the location where the headers get
loaded by introducing new function, spl_get_load_buffer() which takes
two arguments -- offset from the CONFIG_SYS_TEXT_BASE and size of the
data that are to be loaded there -- and returns a valid buffer address
or hangs the system. The default behavior is the same as before, add
the offset to CONFIG_SYS_TEXT_BASE and return that address. User can
override the weak spl_get_load_buffer() function though.
Signed-off-by: Marek Vasut <[email protected]>
Cc: Tom Rini <[email protected]>
Reviewed-by: Simon Goldschmidt <[email protected]>
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At present each entry has an offset within its parent section. This is
useful for figuring out how entries relate to one another. However it
is sometimes necessary to locate an entry within an image, regardless
of which sections it is nested inside.
Add a new 'image-pos' property to provide this information. Also add
some documentation for the -u option binman provides, which updates the
device tree with final entry information.
Since the image position is a better symbol to use for the position of
U-Boot as obtained by SPL, update the SPL symbols to use this instead of
offset, which might be incorrect if hierarchical sections are used.
Signed-off-by: Simon Glass <[email protected]>
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After some thought, I believe there is an unfortunate naming flaw in
binman. Entries have a position and size, but now that we support
hierarchical sections it is unclear whether a position should be an
absolute position within the image, or a relative position within its
parent section.
At present 'position' actually means the relative position. This indicates
a need for an 'image position' for code that wants to find the location of
an entry without having to do calculations back through parents to
discover this image position.
A better name for the current 'position' or 'pos' is 'offset'. It is not
always an absolute position, but it is always an offset from its parent
offset.
It is unfortunate to rename this concept now, 18 months after binman was
introduced. However I believe it is the right thing to do. The impact is
mostly limited to binman itself and a few changes to in-tree users to
binman:
tegra
sunxi
x86
The change makes old binman definitions (e.g. downstream or out-of-tree)
incompatible if they use the 'pos = <...>' property. Later work will
adjust binman to generate an error when it is used.
Signed-off-by: Simon Glass <[email protected]>
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When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.
In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.
This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.
Signed-off-by: Tom Rini <[email protected]>
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This patch is a preparation for adding TPL support for RAM loading.
CONFIG_IS_ENABLED allows for proper handling of the U-Boot/SPL/TPL
differences in config symbol names.
Signed-off-by: Marek Vasut <[email protected]>
Cc: Tom Rini <[email protected]>
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Thomas reported U-Boot failed to build host tools if libfdt-devel
package is installed because tools include libfdt headers from
/usr/include/ instead of using internal ones.
This commit moves the header code:
include/libfdt.h -> include/linux/libfdt.h
include/libfdt_env.h -> include/linux/libfdt_env.h
and replaces include directives:
#include <libfdt.h> -> #include <linux/libfdt.h>
#include <libfdt_env.h> -> #include <linux/libfdt_env.h>
Reported-by: Thomas Petazzoni <[email protected]>
Signed-off-by: Masahiro Yamada <[email protected]>
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SPL supports reading U-Boot from a RAM location. At present this is
hard-coded to the U-Boot text base address. Use binman to allow this to
come from the image file, if binman is used.
Signed-off-by: Simon Glass <[email protected]>
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Add a new top-level config option so support booting an image stored
in RAM. This allows to move the RAM boot support into a sparate file
and having a single condition to compile that file.
Signed-off-by: Stefan Agner <[email protected]>
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