Saeed Nowshadi [Tue, 4 Aug 2020 06:24:04 +0000 (23:24 -0700)]
arm64: zynqmp: Add device tree node for 2nd mux on I2C1 bus
There is 2nd pca9548 mux on I2C1 bus that controls SFP0, SFP1, and QSFP1
ports. Channel 0 and 1 are connected to J287 connector for SFP0 & SFP1, and
channel 2 is connected to J288 connector for QSFP1.
Signed-off-by: Saeed Nowshadi <saeed.nowshadi@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
T Karthik Reddy [Fri, 14 Aug 2020 09:02:15 +0000 (03:02 -0600)]
serial: uartlite: Add support to work with any endianness
This endinness changes are taken from linux uartlite driver.
Reset TX fifo in control register and check TX fifo empty
flag in lower byte of the status register to detect if it
is a little endian system. Based on this check, program the
registers with le32 or be32 through out the driver.
Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com> Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
We will format the partition from linux and copy some files and access
from uboot later.
First thing, in linux config disable CONFIG_MTD_SPI_NOR_USE_4K_SECTORS.
this is required as ubifs expects min LEB size as 15*1024 bytes.
Use below commands in linux to format "images" partition with ubifs.
To access this ubifs partition from uboot, run below commands.
(Don't forget to probe device before, e.g. sf probe 0 0 0)
setenv mtdids "nor0=nor0"
setenv mtdparts "mtdparts=nor0:16m(boot),112m(images)"
ubi part images
ubifsmount ubi0:images
make sure we match "mtdparts" to whatever is given in dt w.r.t partition
sizes.
"mtdparts" command will list the mtd partitions in u-boot.
Once ubifs is mounted, we can use "ubifsls" to list the files in that
partition and use "ubifsload <addr> <filename>" to load files from ubifs
partition to DDR.
Reading information about mtd layout from DT is not supported.
Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Michal Simek [Thu, 20 Aug 2020 12:02:47 +0000 (14:02 +0200)]
board: xilinx: Enable changing default DTB pick up address
U-Boot on xilinx boards is checking one address where DTB can be placed as
the first location for DTB. Originally this code was developed for Versal
where QEMU was putting generated DTB for U-Boot to use.
The patch enables changing this address which is necessary for cases where
default address is pointing to location (DDR) which is not present. The
access to this location can cause exception.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Michal Simek [Mon, 24 Aug 2020 12:41:51 +0000 (14:41 +0200)]
xilinx: kconfig: Change Kconfig dependencies for Xilinx drivers
Zynq/ZynqMP/Versal IPs should be possible to called also from Microblaze in
PL and vice versa. That's why change dependencies and do not limit enabling
just for some platforms.
This is follow up patch based on commit 664e16ce99a0 ("xilinx: kconfig:
Change Kconfig dependencies for Xilinx drivers").
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Michal Simek [Tue, 7 Jan 2020 07:50:34 +0000 (08:50 +0100)]
xilinx: drivers: Use '_' instead of '-' in driver name
The most of drivers are using '_' instead of '-' in driver name. That's why
sync up these names to be aligned. It looks quite bad to see both in use.
It is visible via dm tree command.
Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Linking a U-Boot larger than 1MB fails with PIE enabled:
u-boot/arch/arm/cpu/armv8/start.S:71:(.text+0x3c): relocation
truncated to fit: R_AARCH64_ADR_PREL_LO21 against symbol `__rel_dyn_end'
defined in .bss_start section in u-boot.
This extends the supported range by using adrp & add to load symbols
early while starting up.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Tested-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
arm64: Trap PIE builds early if load address is not 4K aligned
PIE requires a 4K aligned load address. If this is not met, trap
the startup sequence in a WFI loop rather than running into obscure
failures.
Tested-by: Michal Simek <michal.simek@xilinx.com> Suggested-by: André Przywara <andre.przywara@arm.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
arm64: Mention 4K aligned load addresses in the PIE Kconfig help
Mention the requirement of 4K aligned load addresses in the
help section for the POSITION_INDEPENDENT option.
Suggested-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Wolfgang Wallner [Wed, 16 Sep 2020 14:57:53 +0000 (16:57 +0200)]
x86: acpi: Add memset to initialize SPCR table
Add a missing memset to acpi_create_spcr().
The other acpi_create_xxxx() functions perform a memset on their
structures, acpi_create_spcr() does not and as a result the contents of
this table are partly uninitialized (and thus random after every reset).
Fixes: b288cd960072 ("x86: acpi: Generate SPCR table") Signed-off-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: fix the tags format in the commit message] Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Wolfgang Wallner [Fri, 11 Sep 2020 14:52:28 +0000 (16:52 +0200)]
x86: fsp: Replace e-mmc with emmc in devicetree bindings
The term eMMC is used inconsistently within the FSP devicetree
bindings (e-mmc and emmc), especially for "emmc-host-max-speed"
documentation and code disagree.
Change all eMMC instances within the FSP bindings to consistently
use "emmc". The term "emmc" is already used a lot within U-Boot,
while "e-mmc" is only used in the FSP bindings.
Signed-off-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: correct one typo in the commit message] Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Fixes: 0b885bcfd9b0 ("acpi: Add an acpi command") Cc: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Andy Shevchenko [Tue, 8 Sep 2020 13:57:22 +0000 (16:57 +0300)]
x86: edison: Move config SYS_MALLOC_LEN to Kconfig
This patch moves the the config SYS_MALLOC_LEN to Kconfig
as it is already done for zynq arch in commit 01aa5b8f0503
("Kconfig: Move config SYS_MALLOC_LEN to Kconfig for zynq").
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tom Rini [Sat, 19 Sep 2020 12:31:52 +0000 (08:31 -0400)]
Merge branch '2020-09-18-assorted-bugfixes'
- SquashFS Coverity fixes
- bitflip fix in the alternate memtest command
- Disable networking on bcmstb boards where we didn't have any network
drivers enabled.
Maxim Uvarov [Fri, 28 Aug 2020 19:20:10 +0000 (22:20 +0300)]
efi: change 'env -e -i' usage syntax
'env -e -i' syntax was changed from "," to ":". Account for this also
in the documentation.
Fixes: 2b3fbcb59f41 ("efi_loader: use ':' as separator for setenv -i") Signed-off-by: Maxim Uvarov <maxim.uvarov@linaro.org>
Correct the usage description for setenv -e too. Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Allow specifying the node on which a property is searched.
Test the device tree consistency more rigorously.
Some efi_st_printf() calls have been converted to efi_st_error().
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Ralph Siemsen [Wed, 9 Sep 2020 16:10:00 +0000 (12:10 -0400)]
cmd: mem: fix range of bitflip test
The bitflip test uses two equal sized memory buffers. This is achieved
by splitting the range of memory into two pieces. The address of the
second buffer, as well as the length of each buffer, were not correctly
calculated. This caused bitflip test to access beyond the end of range.
This patch fixes the pointer arithmetic problem.
A second problem arises because u-boot "mtest" command expects the
ending address to be inclusive. When computing (end - start) this
results in missing 1 byte of the requested length. The bitflip test
expects a count rather than an "ending" address. Thus it fails to test
the last word of the requested range. Fixed by using (end - start + 1).
Added Kconfig option to optionally disable the bitflip test, since it
does add significantly to the time taken for "mtest".
Fixes: 8e434cb705d463bc8cff935160e4fb4c77cb99ab ("cmd: mem: Add bitflip
memory test to alternate mtest")
Signed-off-by: Ralph Siemsen <ralph.siemsen@linaro.org> Reviewed-by: Stefan Roese <sr@denx.de>
mmc: fsl_esdhc_imx: check the clock stable status after config the clock rate.
Currently, after config the clock rate, delay 10ms, this is quite a rough
method. Check the clock stable status in the present status register is
enough.
Tested-by: Ji Luo <ji.luo@nxp.com> Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Marek Vasut [Sat, 12 Sep 2020 23:35:08 +0000 (01:35 +0200)]
ARM: mx6: ddr: Add support for iMX6UL/ULL/SL/SDL
This patch adds support for iMX6UL/ULL/SL/SDL MMDC into the DDR calibration
code. The difference between MX6DQ and MX6UL/ULL/SL is that the later SoCs
have 2 SDQS registers, just like MX6SX, while the MX6DQ/MX6SDL has 8.
Fixes: 4f4c128c65 ("ARM: mx6: ddr: Add support for iMX6SX") Signed-off-by: Marek Vasut <marex@denx.de> Cc: Eric Nelson <eric@nelint.com> Cc: Fabio Estevam <fabio.estevam@nxp.com> Cc: Stefano Babic <sbabic@denx.de> Reviewed-by: Fabio Estevam <festevam@gmail.com>
The size of the binary created with the default U-boot config is much
greater than the default offset for environment `0x60000`.
In case if that binary is used for booting via MMC it is overlapped with
the environment stored on MMC.
This leads to U-Boot corruption while saving environment with `saveenv`
command and non-bootable SabreLite board.
The offset for environment `CONFIG_ENV_OFFSET=0x60000` was added in
commit a09fea1 but did not count in the change to `0xC0000` if option
`CONFIG_ENV_IS_IN_MMC` is used.
The offset is also used for variant with environment saving onto SPI NOR
flash (with enabled option `CONFIG_ENV_IS_IN_SPI_FLASH`). In that case the
U-Boot binary flashed on SPI NOR is also corrupted after environment
saving with the original 0x60000 offset.
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com> Reviewed-by: Tom Rini <trini@konsulko.com>
Peng Fan [Wed, 16 Sep 2020 07:17:18 +0000 (15:17 +0800)]
imx7: ccm: correct target interface num
According to i.MX 7Dual Applications Processor Reference Manual, Rev. 1
The target interface CCM root index ranges [0,124], so the number
should be 125.
Reported-by: Coverity 18045 Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Ye Li <ye.li@nxp.com>
Igor Opaniuk [Mon, 14 Sep 2020 08:01:10 +0000 (11:01 +0300)]
colibri_imx7: use preboot for fdtfile evaluation
Enable and set preboot var with fdtfile evaluation.
preboot will be checked and run immediately before starting the
CONFIG_BOOTDELAY countdown and/or running the auto-boot command resp.
entering interactive mode.
This provides possibility to use different boot cmds in interactive mode
without manual setting fdtfile value, as it it's already evaluated
before entering interactive mode.
Igor Opaniuk [Mon, 14 Sep 2020 08:01:09 +0000 (11:01 +0300)]
colibri_vf: use preboot for fdtfile evaluation
Enable and set preboot var with fdtfile evaluation.
preboot will be checked and run immediately before starting the
CONFIG_BOOTDELAY countdown and/or running the auto-boot command resp.
entering interactive mode.
This provides possibility to use different boot cmds in interactive mode
without manual setting fdtfile value, as it it's already evaluated
before entering interactive mode.
Fixes: 304042c1f3("colibri_vf: set fdtfile for distroboot") Signed-off-by: Igor Opaniuk <igor.opaniuk@toradex.com>
Igor Opaniuk [Mon, 14 Sep 2020 08:01:08 +0000 (11:01 +0300)]
colibri-imx6ull: use preboot for fdtfile evaluation
Enable and set preboot var with fdtfile evaluation.
preboot will be checked and run immediately before starting the
CONFIG_BOOTDELAY countdown and/or running the auto-boot command resp.
entering interactive mode.
This provides possibility to use different boot cmds in interactive mode
without manual setting fdtfile value, as it it's already evaluated
before entering interactive mode.
I also followed the development of the SquashFS support in U-Boot
as part of Joao Marcos internship, so I would also appreciate receiving
new contributions and bug reports related to this topic.
Thomas Petazzoni [Mon, 14 Sep 2020 11:52:39 +0000 (13:52 +0200)]
MAINTAINERS: add myself as reviewer for SquashFS
As I have followed the development of the SquashFS support in U-Boot
as part of Joao Marcos work, it makes sense to get Cc'ed on
contributions/bug reports related to the squashfs support.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Marek Vasut [Sat, 12 Sep 2020 10:42:52 +0000 (12:42 +0200)]
lib: fdt: Fix fdtdec_setup_mem..() conversion to livetree API
Repair incorrectly negated condition in the original patch which broke
DT memory node parsing on everything which has more than one DT memory
node, e.g. R-Car3.
In case multiple valid memory nodes are present in the DT, the original
patch would complete parsing cycle for the first memory node, then move
on to the next one, identify it as a valid, and end the parsing. The fix
is to invert the condition, to make the code behave as it did before the
livetree conversion, so it would continue parsing the subsequent memory
nodes as well.
Fixes: c2f0950c33 ("lib: fdt: Convert fdtdes_setup_mem..() to livetree API") Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Simon Glass <sjg@chromium.org> Cc: Tom Rini <trini@konsulko.com> Tested-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Tom Rini [Wed, 16 Sep 2020 12:08:06 +0000 (08:08 -0400)]
Merge tag 'efi-2020-10-rc5' of https://gitlab.denx.de/u-boot/custodians/u-boot-efi
Pull request for UEFI sub-system for efi-2020-10-rc5
The following bugs are fixed:
* unaligned access in br_i32_decode()
* missing restore of global data pointer in UEFI selftest
* missing restore of global data pointer on RISC-V in UEfI subsystem
* efi_var_mem_notify_exit_boot_services() should not be __efi_runtime
The linker sometimes creates PT_LOAD segments with length (p_filesz) zero
as described in https://man7.org/linux/man-pages/man5/elf.5.html. This
leads to build failures. We should ignore empty segments.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Tested-by: Tom Rini <trini@konsulko.com> Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Kever Yang [Mon, 13 Apr 2020 01:38:30 +0000 (09:38 +0800)]
rockchip: rv1108: use correct API for board callback
Use board_early_init_f() instead of mach_cpu_init() for board, the
board_early_init_f() is used for board init and after dm_initf, while
the mach_cpu_init() is used for CPU/SOC and before dm_initf()(not able
to use syscon API).
Fixes: 9cec336708 ("rockchip: evb-rv1108: Use syscon API to get grf base") Fixes: 4aa33690fc {"rockchip: elgin-rv1108: Use syscon API to get grf base") Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
mmc: msm_sdhci: Use mmc_of_parse for setting host_caps
Since the introduction of 'get_cd' callback in sdhci core,
dragonboard410c's MMC interface is broken. It turns out that 'get_cd'
callback checks for the host_caps for validating the chip select. And
since the msm_sdhci driver is not parsing the host_caps from DT, not
all of the cababilities are parsed properly. This results in the MMC
interfaces to be broken.
Hence, fix this by adding a call to 'mmc_of_parse' during driver probe.
efi_var_mem_notify_exit_boot_services() is invoked when ExitBootServices()
is called by the UEFI payload.
efi_var_mem_notify_exit_boot_services() should not be defined as
__efi_runtime as it is invoking EFI_ENTRY() and EFI_EXIT() which themselves
are not __efi_runtime.
Fixes: f1f990a8c958 ("efi_loader: memory buffer for variables") Fixes: e01aed47d6a0 ("efi_loader: Enable run-time variable support for tee based variables") Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Robert Reither [Mon, 14 Sep 2020 11:12:02 +0000 (13:12 +0200)]
rsa: crash in br_i32_decode() called from rsa_gen_key_prop()
Fixes problem for unaligned 32bit big-endian access in
lib/rsa/rsa-keyprop.c.
Exchanges br_i32_decode() with get_unaligned_be32().
This will keep the unaligned access for architectures capable and will do
some byte-shift magic for the not so capable ones.
Reported-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-by: Robert Reither <robert.reither@external.thalesgroup.com>
Remove unused include. Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
test: do no assume hush parser in validate_empty()
The environment variable test uses function validate_empty() to check that
a variable is not defined. If the hush parser is not enabled, we cannot
refer to a variable by $var_name but only by ${var_name}.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Acked-by: Stephen Warren <swarren@nvidia.com>
Attempting to place device tree immediately after an image in memory can lead
to mis-aligned data accesses if that image size is not divisible by the
alignment requirements of the architecture.
Data aborts caused by this were observed on a custom Marvel A388 based system,
where the image was a uboot FIT file. The total size varies depending on the
uboot device tree size, which does not always lead to correct alignment.
The minimum alignment specified for ARM [1] and ARM64 [2] linux booting has been
used
T Karthik Reddy [Mon, 31 Aug 2020 12:27:37 +0000 (14:27 +0200)]
mtd: nand: Fix nand write error with bad block addresses above 32-bit
Nand writes should skip the bad blocks with "nand write" command.
In case of bad blocks with above 32-bit address, nand_block_isbad()
returns false due to truncated bad block address.
In below code segment,
if (nand_block_isbad(mtd, offset & ~(mtd->erasesize - 1)))
offset is 64-bit and mtd->erasesize is 32-bit, hence the truncation is
happening. Cast 'mtd->erasesize' with loff_t to fix this issue.
Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Pedro Aguilar [Mon, 31 Aug 2020 09:01:41 +0000 (11:01 +0200)]
env: Crash in 'env import' when using checksum and a specific size
This patch adds a sanity check that avoids 'size' to overflow and crash when
importing an environment that contains a checksum. Example with the wrong size
that causes the crash:
=> env import -c 0x4100000 3 v1
This assumes that v1 has already been successfully exported with
'env export -c -s 0x100 0x4100000 v1'
Signed-off-by: Pedro Aguilar <pedro.aguilar@vimar.com>
bootm: update image OS image size when decompressing
In bootm_load_os() the OS image is decompressed. In later stages of the
boot process we need the decompressed size of the image.
Update images->os.image_len after decompression.
Passing the correct size is necessary if we want to check loaded EFI
binararies for file truncation by comparing the loaded size to the header
field SizeOfImage.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
Michal Simek [Thu, 27 Aug 2020 16:01:28 +0000 (18:01 +0200)]
common: Kconfig: Add dependency for default variables strings
Kconfig provides several config options for setting up default variables
but these are unused when variables are passed to U-Boot via file.
That's why cover this dependency in Kconfig.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Chuanjia Liu [Mon, 31 Aug 2020 07:53:12 +0000 (15:53 +0800)]
PCI: mediatek: Release the resource when PCIe enable port fail
On the mt7623 platform, if one port enable fail and other port
enable succeed. It will hang on when using pci enum
because the resource was not released correctly.
Signed-off-by: Chuanjia Liu <Chuanjia.Liu@mediatek.com> Tested-by: Frank Wunderlich <frank-w@public-files.de>
Marek Vasut [Sat, 22 Aug 2020 20:45:25 +0000 (22:45 +0200)]
ARM: dts: stm32: Adjust PLL4 settings on AV96 again
PLL4Q is supplying both FDCAN and LTDC. In case HDMI is in use, the
50 MHz generated from PLL4Q cannot be divided well enough to produce
accurate clock for HDMI pixel clock. Adjust it to generate 74.25 MHz
instead. The PLL4P/PLL4R are generating 99 MHz instead of 100 MHz,
which is in tolerance for the SDMMC.
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Gerald Baeza <gerald.baeza@st.com> Cc: Patrick Delaunay <patrick.delaunay@st.com> Cc: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
Marek Vasut [Sat, 22 Aug 2020 20:45:36 +0000 (22:45 +0200)]
ARM: dts: stm32: Pull UART4 RX high on AV96
There is no dedicated pull resistor on the AV96 UART4 (console UART)
pin. In case there is no UART adapter installed on the AV96, the line
is floating and can trigger reception of garbage characters, which in
turn can abort U-Boot autoboot. Add default pull up to mitigate this
problem.
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Patrick Delaunay <patrick.delaunay@st.com> Cc: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
arm: stm32mp: cleanup test on eth_env_set_enetaddr result
Remove the unnecessary inversion on the eth_env_set_enetaddr() result which
only make complex the code of setup_mac_address() and display an invalid
value in the associated pr_err.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Reviewed-by: Marek Vasut <marex@denx.de>
config: Enable USB Keyboard suuport on RPi4 32 bit
Supporting USB keyboards out of the box is both handy for development
and production. Notably if u-boot is used to boot into GRUB. This patch
adds USB keyboard support for 32 bit RPi4 config.
projects / u-boot.git / log