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U-boot is intended to replace linux kernel in android boot image(ABL), and
it's FIT payload to replace initramfs file. The boot process is similar to
boot image with linux:
- android bootloader (ABL) unpacks android boot image
- ABL sets `linux,initrd-start property` in chosen node in unpacked FDT
- ABL sets x0 register to FDT address, and passes control to u-boot
- u-boot reads x0 register, and stores it in `prevbl_fdt_addr` env variable
- u-boot reads `linux,initrd-start` property,
and stores it in `prevbl_initrd_start_addr`
In this way, u-boot bootcmd relies on `prevbl_initrd_start_addr` env
variable, and boils down to `bootm $prevbl_initrd_start_addr`.
If more control on boot process is desired, pack a boot script in
FIT image, and put it to default configuration
What done:
- Rearrange defconfig option order
- Add CONFIG_SAVE_PREV_BL_* options
- Doc updates:
- remove wrong SBOOT memory corruption note, because
memory is changed during u-boot bringup process,
not by SBOOT
- put payload on ramdisk place in abl boot image
creation step
Signed-off-by: Dzmitry Sankouski <[email protected]>
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U-boot is intended to replace linux kernel in android boot image(ABL), and
it's FIT payload to replace initramfs file. The boot process is similar to
boot image with linux:
- android bootloader (ABL) unpacks android boot image
- ABL sets `linux,initrd-start property` in chosen node in unpacked FDT
- ABL sets x0 register to FDT address, and passes control to u-boot
- u-boot reads x0 register, and stores it in `prevbl_fdt_addr` env variable
- u-boot reads `linux,initrd-start` property,
and stores it in `prevbl_initrd_start_addr`
In this way, u-boot bootcmd relies on `prevbl_initrd_start_addr` env
variable, and boils down to `bootm $prevbl_initrd_start_addr`.
If more control on boot process is desired, pack a boot script in
FIT image, and put it to default configuration
What done:
- strip unneeded config options
- add FIT image support
- add framebuffer node, u-boot logo and video console
- increase LMB_MAX_REGIONS, to store all linux dtb reserved memory regions
- add linux kernel image header
Uart driver causes hang, when u-boot is used in android boot image instead
of linux. Temporary disable console driver, until investigated and fixed.
Signed-off-by: Dzmitry Sankouski <[email protected]>
Cc: Ramon Fried <[email protected]>
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Signed-off-by: Tom Rini <[email protected]>
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Unfortunately, we require additional logic to buildman to support this
removal and still use SYS_SOC, etc, for build targets.
This reverts commit eeec00072d7a0b5b91896d014618e558ce438738.
Signed-off-by: Tom Rini <[email protected]>
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This adds support for booting entirely from JTAG while using a
hard-coded RCW. With these steps, it is not necessary to program a
"good" RCW using CodeWarrior. The method here can be performed with any
JTAG adapter supported by OpenOCD, including the on-board CMSIS-DAP
(albeit very slowly).
These steps require LS1046A support in OpenOCD, which was added in [1].
[1] https://sourceforge.net/p/openocd/code/ci/5b70c1f679755677c925b4e6dd2c3d8be4715717/
Signed-off-by: Sean Anderson <[email protected]>
[trini: Add reference to doc/board/nxp/ls1046ardb.rst]
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This documents how to use semihosting, the new semihosting features, and
how to migrate from smhload.
Signed-off-by: Sean Anderson <[email protected]>
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This adds some instructions for enabling the debug uart, including the
correct address and clock rate.
Signed-off-by: Sean Anderson <[email protected]>
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This adds some additional info about booting from different sources,
including the correct switch positions.
Signed-off-by: Sean Anderson <[email protected]>
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This converts the readme for this board to rST. I have tried not to
change any semantics from the original (though I did convert MB to M).
Signed-off-by: Sean Anderson <[email protected]>
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This converts the semihosting readme to rST. I have tried to make only
cosmetic changes, but I did fix up the first link (which was broken).
Signed-off-by: Sean Anderson <[email protected]>
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The ARMv8-R64 architecture introduces optional VMSA (paging based MMU)
support in the EL1/0 translation regime, which makes that part mostly
compatible to ARMv8-A.
Add a new board variant to describe the "BASE-R64" FVP model, which
inherits a lot from the existing v8-A FVP support. One major difference
is that the memory map in "inverted": DRAM starts at 0x0, MMIO is at
2GB [1].
* Create new TARGET_VEXPRESS64_BASER_FVP target, sharing most of the
exising configuration.
* Implement inverted memory map in vexpress_aemv8.h
* Create vexpress_aemv8r defconfig
* Provide an MMU memory map for the BASER_FVP
* Update vexpress64 documentation
At the moment the boot-wrapper is the only supported secure firmware. As
there is no official DT for the board yet, we rely on it being supplied
by the boot-wrapper into U-Boot, so use OF_HAS_PRIOR_STAGE, and go with
a dummy DT for now.
[1] https://developer.arm.com/documentation/100964/1114/Base-Platform/Base---memory/BaseR-Platform-memory-map
Signed-off-by: Peter Hoyes <[email protected]>
[Andre: rebase and add Linux kernel header]
Signed-off-by: Andre Przywara <[email protected]>
[trini: Add MAINTAINERS entry for Peter]
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All options have now been migrated to Kconfig correctly so remove this
support.
Signed-off-by: Tom Rini <[email protected]>
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This converts the existing README.plan9 to reST, and puts it under
the doc/usage/os directory.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
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At present the doc only mentions Arm, PowerPC and x86. RISC-V support
has been added since VxWorks SR0650 support for a while, and U-Boot
supports loading a RISC-V VxWorks kernel too. Let's document it.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
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This converts the existing README.vxworks to reST, and puts it under
the doc/usage/os directory.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
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Update the extension command title for consistency with other commands.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
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Currently all shell command docs are put in the doc/usage root.
Let's group them into cmd/ sub-directory.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
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Provide human readable descriptions of the speed nodes instead of the name
of constants from the code as it is already done for 'mmc rescan'
command in commit 212f078496e4 ("doc: mmc rescan speed mode").
Signed-off-by: Patrick Delaunay <[email protected]>
Reviewed-by: Aswath Govindraju <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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The non-driver model video support was removed two years ago. Drop this
driver, which is only used by nokia_rx51.
Signed-off-by: Simon Glass <[email protected]>
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Prepare v2022.04-rc5
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Freescale git repos are now on source.codeaurora.org.
Signed-off-by: Pali Rohár <[email protected]>
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Describe the wdt command.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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Pin all dependencies as reported by 'pip freeze'.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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- Grammar fixes
- Clarify explanations
Signed-off-by: Michael Opdenacker <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
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Add documentation about the different configuration files for the
RaspberryPi board family.
Signed-off-by: Matthias Brugger <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
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There is no CONFIG_UEFI_SECURE_BOOT, and there was never any.
Signed-off-by: Jan Kiszka <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
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Add section how to run U-Boot in n900 qemu machine.
Signed-off-by: Pali Rohár <[email protected]>
Signed-off-by: Heinrich Schuchardt <[email protected]>
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It add documentation on licencing & provides links to the amlogic-boot-fip
pre-built files collections.
Signed-off-by: Neil Armstrong <[email protected]>
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The doc used GXL instructions, which couldn't work on GXBB SoCs.
Signed-off-by: Neil Armstrong <[email protected]>
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With all boards now using DM_ETH we determine the value for
CONFIG_FEC_XCV_TYPE at run time, except in the case of the default
fall-back. Set the fallback directly now.
Cc: Fabio Estevam <[email protected]>
Cc: Ramon Fried <[email protected]>
Cc: Stefano Babic <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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Add support for Kevin, an RK3399-based convertible chromebook that is
very similar to Bob. This patch is mostly based on existing support for
Bob, with only minor changes for Kevin-specific things.
Unlike other Gru boards, coreboot sets Kevin's center logic to 925 mV,
so adjust it here in the dts as well. The rk3399-gru-kevin devicetree
has an unknown event code reference which has to be defined, set it
to the Linux counterpart. The new defconfig is copied from Bob with the
diffconfig:
DEFAULT_DEVICE_TREE "rk3399-gru-bob" -> "rk3399-gru-kevin"
DEFAULT_FDT_FILE "rockchip/rk3399-gru-bob.dtb" -> "rockchip/rk3399-gru-kevin.dtb"
VIDEO_ROCKCHIP_MAX_XRES 1280 -> 2400
VIDEO_ROCKCHIP_MAX_YRES 800 -> 1600
+TARGET_CHROMEBOOK_KEVIN y
With this Kevin can boot from SPI flash to a usable U-Boot prompt on the
display with the keyboard working, but cannot boot into Linux for
unknown reasons.
eMMC starts in a working state but fails to re-init, microSD card works
but at a lower-than-expected speed, USB works but causes a hang on
de-init. There are known workarounds to solve eMMC and USB issues.
Cc: Marty E. Plummer <[email protected]>
Cc: Simon Glass <[email protected]>
[Alper: commit message, resync config with Bob, update MAINTAINERS,
add to Rockchip doc, add Kconfig help message, set regulator]
Co-developed-by: Alper Nebi Yasak <[email protected]>
Signed-off-by: Alper Nebi Yasak <[email protected]>
Reviewed-by: Kever Yang <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Tested-by: Simon Glass <[email protected]>
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"kendryte" is the marketing name for the K210 RISC-V SoC produced by
Canaan Inc. Rather than "kendryte,k210", use the usual "canaan,k210"
vendor,SoC compatibility string format in the device tree files and
use the SoC name for file names.
With these changes, the device tree files are more in sync with the
Linux kernel DTS and drivers, making uboot device tree usable by the
kernel.
Signed-off-by: Damien Le Moal <[email protected]>
Signed-off-by: Niklas Cassel <[email protected]>
Reviewed-by: Leo Yu-Chi Liang <[email protected]>
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Prepare v2022.04-rc4
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mkeficapsule requires package libgnutls28-dev for building
Signed-off-by: Heinrich Schuchardt <[email protected]>
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u-boot-spl.bin is built in spl/.
Signed-off-by: Heinrich Schuchardt <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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Add documentation for events, including the event command.
Signed-off-by: Simon Glass <[email protected]>
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Testes proved that current kwboot version supports also Avanta SoCs.
It looks like that Avanta SoCs are using same kwbimage format as Armada.
Signed-off-by: Pali Rohár <[email protected]>
Tested-by: Tony Dinh <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Tested-by: Stefan Roese <[email protected]>
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Document -D, -b, -d, -q and -s options.
Add common examples how to use kwboot.
Add information about Armada 38x BootROM bug for debug console mode and how
to workaround it.
Signed-off-by: Pali Rohár <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Tested-by: Stefan Roese <[email protected]>
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Update and fixes for sl28, lx2, pblimage generation for some powerpc
products
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Changes SCMI bindings documentation to relate to Linux kernel
source tree that recently changed the bindings description to YAML
format.
Reviewed-by: Patrick Delaunay <[email protected]>
Signed-off-by: Etienne Carriere <[email protected]>
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Fix pylint errors that can be fixed and mask those that seem to be
incorrect.
Signed-off-by: Simon Glass <[email protected]>
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Currently -l option for mkimage and dumpimage ignores option -T and always
tries to autodetect image type.
With this change it is possible to tell mkimage and dumpimage to parse
image file as specific type (and not random autodetected type). This allows
to use mkimage -l or dumpimage -l as tool for validating image.
params.type for -l option is now by default initialized to zero
(IH_TYPE_INVALID) instead of IH_TYPE_KERNEL. imagetool_get_type() for
IH_TYPE_INVALID returns NULL, which is assigned to tparams. mkimage and
dumpimage code is extended to handle tparams with NULL for -l option. And
imagetool_verify_print_header() is extended to do validation via tparams if
is not NULL.
Signed-off-by: Pali Rohár <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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They are no longer needed, because we now have proper driver support for
the sl28cpld management controller.
Signed-off-by: Michael Walle <[email protected]>
Reviewed-by: Priyanka Jain <[email protected]>
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This board has an internal watchdog which supervises the board startup.
Although, the initial state of the watchdog is configurable, it is
enabled by default. In board_late_init(), which means almost everything
worked as expected, disable the watchdog.
Signed-off-by: Michael Walle <[email protected]>
Reviewed-by: Priyanka Jain <[email protected]>
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The watchdog timer is part of the sl28cpld management controller. The
watchdog timer usually supervises the bootloader boot-up and if it bites
the failsafe bootloader will be activated. Apart from that it supports
the usual board level reset and one SMARC speciality: driving the
WDT_TIMEOUT# signal.
Signed-off-by: Michael Walle <[email protected]>
Reviewed-by: Priyanka Jain <[email protected]>
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Man-page for fatload command.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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SMBIOS is not x86 specific. So we should have an architecture independent
page describing it.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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This converts the existing driver API docs (clk-uclass.h) to kernel doc
format and adds them to the HTML documentation. Because the kernel doc
sphinx converter does not handle functions in structs very well, the
individual methods are documented separately. This is primarily inspired by
the phylink documentation [1], which uses this trick extensively.
[1] https://www.kernel.org/doc/html/latest/networking/kapi.html#c.phylink_mac_ops
Signed-off-by: Sean Anderson <[email protected]>
Tested-by: Heinrich Schuchardt <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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This converts the existing client (aka clk.h) documentation to kernel doc
format, and adds it to the HTML docs. I have tried to preserve existing
comments as much as possible, refraining from semantic changes.
Signed-off-by: Sean Anderson <[email protected]>
Tested-by: Heinrich Schuchardt <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
[rebased onto u-boot/master and resolved conflicts]
Signed-off-by: Sean Anderson <[email protected]>
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U-Boot now supports NVMe storage and on the laptop models, the
SPI keyboard. Since we now disable the debug console by default
provide instructions on how the enable the debug console including
a table listing the appropriate UART base address for each of the
supported SoCs.
Signed-off-by: Mark Kettenis <[email protected]>
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