Commit graph

92436 commits

Author SHA1 Message Date
Simon Glass
92ee1f5e10 pxe: Use strlcpy() instead of strcpy() in label_boot()
The intention here is to nul-terminate the result string, so use the
correct function for that.

Signed-off-by: Simon Glass <sjg@chromium.org>
2024-04-10 17:04:25 -06:00
Simon Glass
c30e0842b1 doc: Mention fastboot dependency on CMDLINE
The fastboot 'boot' command only supports running a U-Boot command if
CONFIG_CMDLINE is enabled. Mention this in the documentation.

Signed-off-by: Simon Glass <sjg@chromium.org>
Suggested-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
2024-04-10 17:04:25 -06:00
Simon Glass
b0c27bd81a fastboot: Remove dependencies on CMDLINE
It is possible to boot a kernel without CMDLINE being enabled. Update
the implementation to handle this, and drop the condition from the
FASTBOOT config.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
2024-04-10 17:04:25 -06:00
Simon Glass
26736347bf bootm: Make cmdline optional with bootm_boot_start()
Allow the default command line to be used when booting the OS. This is
needed by fastboot.

Signed-off-by: Simon Glass <sjg@chromium.org>
2024-04-10 17:04:25 -06:00
Simon Glass
637425bab3 fastboot: Change fastboot_buf_addr to an address
Given the name of this variable, it should be an address, not a
pointer. Update this, to make it easier to use with sandbox.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Dmitrii Merkurev <dimorinny@google.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Tested-by: Mattijs Korpershoek <mkorpershoek@baylibre.com> # on vim3
2024-04-10 17:04:25 -06:00
Simon Glass
6d47fd39fc boot: Update SYS_BOOTM_LEN to depend on BOOTM
Use the new CONFIG_BOOTM symbol to determine whether SYS_BOOT_LEN is
visible or not, since we want to support decompression when CMDLINE is
disabled.

Signed-off-by: Simon Glass <sjg@chromium.org>
2024-04-10 17:04:25 -06:00
Simon Glass
6be5ec948b treewide: Make arch-specific bootm code depend on BOOTM
Allow these functions to be compiled in when CONFIG_BOOTM is enabled,
even if CONFIG_CMD_BOOTM is not.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Angelo Dureghello <angelo@kernel-space.org>
2024-04-10 17:04:25 -06:00
Simon Glass
b34c8289d2 bootm: Make OS booting dependent on BOOTM
Booting an OS does not require the 'bootm' command, so change the
condition for these options.

Move them into boot/ so they don't depend on CMDLINE

Note that CMD_BOOTM_PRE_LOAD has been put directly into the bootm code
so will need some additional refactoring (and a test!) to allow it to
change over.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2024-04-10 17:04:25 -06:00
Simon Glass
6e558e34e0 bootm: Add a Kconfig option for bootm functionality
Create a separate Kconfig option which enables the bootm logic,
separate from the 'bootm' command. This will eventually allow booting
without CMDLINE enabled.

Update boards which disable CMD_BOOTM to disable BOOTM instead, since
CMD_BOOTM now depends on BOOTM

Signed-off-by: Simon Glass <sjg@chromium.org>
2024-04-10 17:04:25 -06:00
Simon Glass
52b3c47d7c boot: Reorder FIT and BOOTSTD to be first
The boot menu shows Android first and then a timestamp option. Move
these later since they are less commonly used.

Signed-off-by: Simon Glass <sjg@chromium.org>
2024-04-10 17:04:25 -06:00
Tom Rini
ab3453e7b1 Merge patch series "Complete decoupling of zboot logic from commands"
Simon Glass <sjg@chromium.org> says:

This series refactors the zboot code to allow it to be used with
CONFIG_COMMAND disabled.

A new zboot_run() function is used to boot a zimage.
2024-04-10 13:49:35 -06:00
Simon Glass
8d24535e84 x86: zboot: Tidy up the comment for zboot_run()
The current use case (ChromeOS) is the uncommon case. Document how this
function is more normally used, where base is 0 and cmdline is NULL

Signed-off-by: Simon Glass <sjg@chromium.org>
2024-04-10 13:49:16 -06:00
Simon Glass
39f7045252 x86: zboot: Use zboot_start() in zboot_run()
Now that we have a function to start the process of booting a zimage,
use it in zboot_run() to avoid duplicated logic.

Signed-off-by: Simon Glass <sjg@chromium.org>
2024-04-10 13:49:16 -06:00
Simon Glass
9ad5fdf1a8 x86: zboot: Separate logic functions from commands
Move zboot_start() and zboot_info() in with the other logic functions.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2024-04-10 13:49:16 -06:00
Simon Glass
d2c485a032 x86: zboot: Rename zboot_start() to zboot_run()
The term 'start' is used withint bootm and zboot to indicate the first
phase of booting an image.

Since zboot_start() does the whole boot, rename it to zboot_run() to
align with bootm_run() etc.

Fix a log message while we are here.

Signed-off-by: Simon Glass <sjg@chromium.org>
2024-04-10 13:49:16 -06:00
Simon Glass
02ed6c333e x86: zboot: Move argument processing outside zboot_start()
Process the arguments before calling zboot_start() so that we can
separate the command line from the internal logic.

Signed-off-by: Simon Glass <sjg@chromium.org>
2024-04-10 13:49:16 -06:00
Simon Glass
d531499749 x86: zboot: Drop intermediate zboot_go() function
This function only calls zboot_go() so drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2024-04-10 13:49:16 -06:00
Simon Glass
cb19931ee5 x86: zboot: Drop intermediate zboot_setup() function
Move error checking into the caller so that do_zboot_setup() can call
zboot_setup() directly.

Signed-off-by: Simon Glass <sjg@chromium.org>
2024-04-10 13:49:16 -06:00
Simon Glass
db0c6f47c3 x86: zboot: Move environment setting into zboot_load()
The only difference between the command and the underlying logic is the
setting of envrionment variables. Move this out of the command
processing since it needs to be done in any case.

Signed-off-by: Simon Glass <sjg@chromium.org>
2024-04-10 13:49:16 -06:00
Simon Glass
42a99d0df6 x86: zboot: Create separate functions for the logic
Separate out the commands from the logic. This will eventually allow
the logic to be used when CONFIG_CMDLINE is not enabled.

Signed-off-by: Simon Glass <sjg@chromium.org>
2024-04-10 13:49:16 -06:00
Simon Glass
228c6722d4 x86: zboot: Avoid iteration in do_zboot_states()
Drop the iteration and write out each state in full. This will allow
the arguments to be reduced and adjusted in future patches.

Signed-off-by: Simon Glass <sjg@chromium.org>
2024-04-10 13:49:16 -06:00
Simon Glass
80d4c98757 x86: zboot: Create a separate ZBOOT option for zboot logic
Most of the functionality of zboot is contained in the logic which
handles a zimage. Create a separate Kconfig for the logic so that it can
(later) be used without the command itself being enabled.

Enable ZBOOT by default on x86, with the command depending on that. The
existing 'imply' can therefore be removed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2024-04-10 13:49:15 -06:00
Simon Glass
bade0ac04b x86: zboot: Move command code into its own file
Much of the code in zimage.c deals with the zboot command. Move it into
a sepatate zboot.c file within the cmd/ directory. This will eventually
allow use of the zimage logic without the command being enabled.

Signed-off-by: Simon Glass <sjg@chromium.org>
2024-04-10 13:49:15 -06:00
Simon Glass
e4255f45c9 x86: zboot: Move zimage definitions to the header file
In preparation for splitting the zboot-command code into a separate
file, move the definitions into the header file.

While we are here, mention when load_address and base_ptr are set up
and explain bzimage_addr better. Make cmdline const since it cannot be
changed.

Signed-off-by: Simon Glass <sjg@chromium.org>
2024-04-10 13:49:15 -06:00
Tom Rini
843143303c Xilinx changes for v2024.07-rc1
xilinx:
 - Do not call env_get_location when !ENV_IS_NOWHERE
 - Add FDT_FIXUP_PARTITIONS support
 - Fix legacy format MAC decoding
 
 zynqmp:
 - Enable semihosting SPL support
 - DT updates
 - Kconfig resort/cleanup
 - Don't describe second image/capsule if !SPL
 - Add support for dfu/capsule description via MTD
 - Support JTAG as alternative boot mode
 - Add support for TEG soc variant
 
 zynqmp-kria:
 - Wire usb4 boot device
 - Update SDIO tristate pin configuration
 - Disable SPI_FLASH_BAR to avoid issue with SPI after update
 
 mbv:
 - Enable SPL and binman
 - Small platform changes
 
 zynqmp-nand:
 - Error out in case of unsupported SW ECC
 - Clean error path
 
 versal-net:
 - Support multiple locations for variables
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 IS6LAKCdXJaEtlNLSC5IxeRJGmSTN4xPsACfdVL3mMzOZ1gw2+17uW1kHzzOgM4=
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Merge tag 'xilinx-for-v2024.07-rc1' of https://source.denx.de/u-boot/custodians/u-boot-microblaze

Xilinx changes for v2024.07-rc1

xilinx:
- Do not call env_get_location when !ENV_IS_NOWHERE
- Add FDT_FIXUP_PARTITIONS support
- Fix legacy format MAC decoding

zynqmp:
- Enable semihosting SPL support
- DT updates
- Kconfig resort/cleanup
- Don't describe second image/capsule if !SPL
- Add support for dfu/capsule description via MTD
- Support JTAG as alternative boot mode
- Add support for TEG soc variant

zynqmp-kria:
- Wire usb4 boot device
- Update SDIO tristate pin configuration
- Disable SPI_FLASH_BAR to avoid issue with SPI after update

mbv:
- Enable SPL and binman
- Small platform changes

zynqmp-nand:
- Error out in case of unsupported SW ECC
- Clean error path

versal-net:
- Support multiple locations for variables
2024-04-10 11:51:58 -06:00
Vincent Stehlé
b782be47f1 trace: use dynamic string buffer in make_flamegraph()
The str[] buffer declared in make_flamegraph() is used to hold strings
representing the full call-stacks recorded in traces. The size of this
buffer is currently 500 characters and this works well for the documented
examples.

However, it is possible to exhaust this buffer when processing traces
captured when running the UEFI shell on aarch64 sandbox for example.
Indeed, the maximum length needed for such traces can reach 780 characters.

As it is difficult to evaluate the maximum size that would ever be needed
for all the possible traces, let's use a dynamically allocated `abuf'
instead, which we reallocate when needed.

This fixes the following error:

  String too short (500 chars)

While at it, fix a few typos in strings and comments.

Signed-off-by: Vincent Stehlé <vincent.stehle@arm.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Michal Simek <michal.simek@amd.com>
2024-04-10 09:34:53 -06:00
Heinrich Schuchardt
f12001b131 net: dw_eth_qos: Add missing \n in error messages.
Missing line-feeds in error messages lead to output like:

    phy_startup() failed: -110FAILED: -110=>

Output like the following is much easier to read:

    phy_startup() failed: -110
    FAILED: -110
    =>

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2024-04-10 09:34:53 -06:00
Maxim Moskalets
0ceb1f4cb7 lib: add missing line breaks in debug messages
Add missing line breaks to improve debug log readability.

Signed-off-by: Maxim Moskalets <maximmosk4@gmail.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2024-04-10 09:34:53 -06:00
Heinrich Schuchardt
4ed2b1af45 fs: ext4: all file paths are absolute
U-Boot only knows absolute file paths. It is inconsistent to require that
saving to an ext4 file system should use a leading '/' while reading does
not. Remove the superfluous check.

Reported-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Tested-by: Patrice Chotard <patrice.chotard@foss.st.com>
2024-04-10 09:34:53 -06:00
Sébastien Szymanski
d2986567b2 net: nfs: fix file handle length in NFSv3
The NFS protocol uses file handles to refer to file or directory.
In NFSv2 file handles have a fixed size of 32 bytes.
In NFSv3 file handles have a variable length up to 64 bytes. This is
also true for the MOUNT protocol. [1]
When the NFSv3 server replies with a file handle length > 32 bytes, U-Boot
only copies 32 bytes of that file handle and the next LOOKUP Call fails:

BIOS> nfs ${loadaddr} 192.168.1.51:/nfsroot/opos93dev-br/boot/Image
Using ethernet@428a0000 device
File transfer via NFS from server 192.168.1.51; our IP address is 192.168.1.133
Filename '/nfsroot/opos93dev-br/boot/Image'.
Load address: 0x80400000
Loading: *** ERROR: File lookup fail

done
BIOS>

Looking at this transfer in Wireshark, we can see that the server
replies with the following file handle:

    length: 36
    [hash (CRC-32): 0x230ac67b]
    FileHandle: 0100070101005e000000000091763911f87c449fa73c298552db19ba0c9f60002980cfd2

and U-Boot sends the following file handle in the next LOOKUP Call:

    length: 32
    [hash (CRC-32): 0x6314131b]
    FileHandle: 000000240100070101005e000000000091763911f87c449fa73c298552db19ba

Fix this by using a variable length file handle for dirfh.

[1] https://www.rfc-editor.org/rfc/rfc1813.html#page-106

Fixes: b0baca9820 ("net: NFS: Add NFSv3 support")
Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
Tested-by: Andrew Davis <afd@ti.com>
2024-04-10 09:34:53 -06:00
Heinrich Schuchardt
6821d13fb0 rtc: goldfish_rtc_probe should be static
There is no need to export goldfish_rtc_probe().

Fixes: 2d6dc19fd2 ("rtc: driver for Goldfish RTC")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2024-04-10 09:34:53 -06:00
Ahelenia Ziemiańska
32bc256ced tools: open FIT image read-only
Open for reading as O_RDONLY instead of O_RDWR:
the only usage of the fd is for the single read() below;
this prevented
	mkimage -f auto -A arm64 \
		-T kernel -C lz4 -d Image-6.6.15.lz4 \
		-b mt8173-elm-hana-6.6.15.dtb outf
when the inputs were unwritable.

Link: https://bugs.debian.org/1063097
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Reviewed-by: Dragan Simic <dsimic@manjaro.org>
2024-04-10 09:34:53 -06:00
Heinrich Schuchardt
84a78872c4 fs: ext4: make "File System is consistent\n" a debug message
When accessing an ext2 system the message "File System is consistent\n" is
shown after each write. This is superfluous noise. Only write a debug
message.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2024-04-10 09:34:53 -06:00
Greg Malysa
bcdd02328e build: Revive and update LDR format support
LDR format files are used primarily by Analog Devices processors but may
be of interest to other vendors. Previously support existed for this
format as part of the U-Boot build, but it has been unmaintained and
unused for a long time. In preparation for adding support for modern ADI
processors that use LDR, modernize the LDR support:

- Introduce CONFIG_LDR_CPU as the CPU string recognized by the LDR tool
  may not be the same as CONFIG_CPU
- Add an SPL target that repackages u-boot-spl inside an LDR file

An almost identical target for packaging u-boot into an LDR file already
exists and did not need to be created.

Co-developed-by: Nathan Barrett-Morrison <nathan.morrison@timesys.com>
Signed-off-by: Nathan Barrett-Morrison <nathan.morrison@timesys.com>
Signed-off-by: Ian Roberts <ian.roberts@timesys.com>
Signed-off-by: Greg Malysa <greg.malysa@timesys.com>
2024-04-10 09:34:53 -06:00
Tom Rini
e8ff287595 scripts/Makefile.spl: Use 'sort' in SHRUNK_ARCH_DTB rule
With configs such as "am64x_evm_a53" or "imx8mp_venice" which list
multiple device trees to build we get a warning such as:
scripts/Makefile.spl:578: target 'spl/dts/freescale/' given more than once in the same rule

If we sort this list first the warning goes away.

Tested-by: Michal Simek <michal.simek@amd.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2024-04-10 09:34:53 -06:00
Jixiong Hu
278c644cfa fs: ext4: Change the Settings of file permissions
When a file is created in the linux and corresponding file permission
is set, if the file needs to be modified in uboot during the startup
process, the modified file permission will be reset to 755. Therefore,
when the ext4fs_write() function is called, if the file already exists,
the file permission of the new file is equal to the file permission of
the existing file.
2024-04-10 09:34:52 -06:00
Caleb Connolly
ae8e1d5aa4 cmd: sysboot: null check filename
Currently if ${bootfile} is unset and sysboot is invoked with no
filename specified then U-Boot will crash will a null-pointer
dereference. Add the missing check and a matching error print.

Fixes: 993c912d30 ("cmd: sysboot: Create a sysboot command dedicated file")
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
2024-04-10 09:26:00 -06:00
Pierre-Clément Tosi
4b36f01201 arm64: Fix map_range() not splitting mapped blocks
The implementation of map_range() creates the requested mapping by
walking the page tables, iterating over multiple PTEs and/or descending
into existing table mappings as needed. When doing so, it assumes any
pre-existing valid PTE to be a table mapping. This assumption is wrong
if the platform code attempts to successively map two overlapping ranges
where the latter intersects a block mapping created for the former.

As a result, map_range() treats the existing block mapping as a table
mapping and descends into it i.e. starts interpreting the
previously-mapped range as an array of PTEs, writing to them and
potentially even descending further (extra fun with MMIO ranges!).

Instead, pass any valid non-table mapping to split_block(), which
ensures that it actually was a block mapping (calls panic() otherwise)
before splitting it.

Fixes: 41e2787f5e ("arm64: Reduce add_map() complexity")
Signed-off-by: Pierre-Clément Tosi <ptosi@google.com>
Tested-by: Fabio Estevam <festevam@gmail.com>
Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Toradex Verdin AM62
Reviewed-by: Marc Zyngier <maz@kernel.org>
2024-04-10 08:41:00 -06:00
Petr Zejdl
f03f962c60 xilinx: common: Fix MAC address read from EEPROM
The upper-to-lowercase character conversion now avoids altering the
MAC address field. In the previous version, this alteration corrupted
the MAC address.

Signed-off-by: Petr Zejdl <petr.zejdl@cern.ch>
Link: https://lore.kernel.org/r/20240404114422.2905194-1-petr.zejdl@cern.ch
Signed-off-by: Michal Simek <michal.simek@amd.com>
2024-04-10 15:16:57 +02:00
Tejas Bhumkar
3a6f440dd3 configs: zynqmp_kria: Deactivate CONFIG_SPI_FLASH_BAR
The Kria board features a recovery application that activates
when the FW_EN button is pressed.
Upon power-up flash operates in 3B mode, However, the recovery
application changes it back to 4B mode.
Currently, after a reset, u-boot activates CONFIG_SPI_FLASH_BAR
and assumes the flash is in 3B mode. However, there's no code
or reset lines connected to the flash that could return it to
3B mode. To resolve this issue, changes were made to disable
CONFIG_SPI_FLASH_BAR, which activates 4-byte opcodes.

Signed-off-by: Tejas Bhumkar <tejas.arvind.bhumkar@amd.com>
Link: https://lore.kernel.org/r/20240409094826.4131643-1-tejas.arvind.bhumkar@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
2024-04-10 09:06:22 +02:00
Tom Rini
2d357e4dbe Merge branch 'master' of https://source.denx.de/u-boot/custodians/u-boot-riscv
CI: https://source.denx.de/u-boot/custodians/u-boot-riscv/-/pipelines/20256

- RISC-V: Support backtrace and improve isa extension parsing
- cpu: Add cv1800b SoC support
- board: Add Milk-V Mars board support
- board: Add Milk-V Duo SD card support
2024-04-09 14:18:55 -06:00
Heinrich Schuchardt
c1f78a4f63 doc: describe Milk-V Mars board
Add instructions to build U-Boot for the Milk-V Mars board

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2024-04-09 11:30:37 +08:00
Heinrich Schuchardt
3fe5a37f32 riscv: starfive: avoid including common.h
The usage of common.h is deprecated. Remove it from board files.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2024-04-09 11:30:37 +08:00
Heinrich Schuchardt
92db23f766 board: starfive: support Milk-V Mars board
The differences between the Milk-V Mars board and the VisionFive 2 board
are small enough that we can support both using the same U-Boot build.

* The model and compatible property are taken from proposed Linux patches.
* The EEPROM is atmel,24c02 according to the vendor U-Boot.
* The second Ethernet port is not available.

usb@10100000 does not exist in U-Boot yet. So we don't have to reflect
differences in usage here.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2024-04-09 11:30:37 +08:00
Heinrich Schuchardt
0a8b83fb30 riscv: set fdtfile on Milk-V Mars
Set environment variable fdtfile to the correct value for the Milk-V Mars
board.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2024-04-09 11:30:37 +08:00
Heinrich Schuchardt
90e9dcd709 eeprom: starfive: function get_product_id_from_eeprom()
Export a function get_product_id_from_eeprom() to read the product ID.
This value can be used for fixing up the device-tree on JH7110 based
products.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2024-04-09 11:30:37 +08:00
Heinrich Schuchardt
0f6310c7ff riscv: do not set default fdt for VisionFive 2
Currently in set_fdtfile() we set the value of environment variable fdtfile
unconditionally. The implies that a value in the environment will be
ignored.

With the patch environment variable fdtfile will only be set if it does not
yet exist. This requires that CONFIG_DEFAULT_FDT_FILE is not set.

Now the user can either set and save fdtfile interactively or in the U-Boot
configuration to overrule the device-tree name chosen based on the
hardware in set_fdtfile().

Reported-by: E Shattow <lucent@gmail.com>
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2024-04-09 11:30:37 +08:00
Heinrich Schuchardt
0ba23d3daf riscv: starfive: MMC card detect
The VisionFive 2 board uses GPIO 41 as card detect as documented in
https://doc-en.rvspace.org/VisionFive2/PDF/SCH_RV002_V1.2A_20221216.pdf.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Acked-by: Minda Chen <minda.chen@starfivetech.com>
2024-04-09 11:30:29 +08:00
Łukasz Stelmach
c532ddded9 riscv: Move virtio scan to board_late_init()
When virtio_init() gets called from board_init() PCI isn't ready. Thus,
virtio-over-PCI (e.g. network interfaces) devices can't be detected and
used without additional `virtio scan` scan in the shell or a script.

Signed-off-by: Łukasz Stelmach <l.stelmach@samsung.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2024-04-09 11:30:24 +08:00
Conor Dooley
f39b1b77d8 riscv: support extension probing using riscv, isa-extensions
A new property has been added, with an extensive rationale at [1], that
can be used in place of "riscv,isa" to indicate what extensions are
supported by a given platform that is a list of strings rather than a
single string. There are some differences between the new property,
"riscv,isa-extensions" and the incumbent "riscv,isa" - chief among them
for the sake of parsing being the list of strings, as opposed to a
string. Another advantage is strictly defined meanings for each string
in a dt-binding, rather than deriving meaning from RVI standards. This
will likely to some divergence over time, but U-Boot's current use of
extension detection is very limited - there are just four callsites of
supports_extension() in mainline U-Boot.

These checks are limited to two checks for FPU support and two checks
for "s" and "u". "s" and "u" are not supported by the new property, but
they were also not permitted in "riscv,isa". These checks are only
meaningful (or run) in M-Mode, in which case supports_extension() does
not parse the devicetree anyway.

Add support for the new property in U-Boot, prioritising it, before
falling back to the, now deprecated, "riscv,isa" property if it is not
present.

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2024-04-09 11:30:17 +08:00