| Commit message (Collapse) | Author | Age | Files | Lines |
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Support for the SoC is still in progress, but lets document
what we have now.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Fixes: 3067cd85d ("ARM: omap: am33xx_defconfig: Enable more boards and rename")
Signed-off-by: Jan Kundrát <jan.kundrat@cesnet.cz>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The compute module on the 6ULL-EVK has two DIP switches for choosing the
boot mode. Instead of looking them up in the vendor documentation[1] each
time, document them here.
[1]: https://media.digikey.com/pdf/Data%20Sheets/Freescale%20Semi/i.MX_6UL_EVK_QSG.pdf
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The SoC's vendor is NXP. Correct the typo.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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To prepare for addition of another ZII i.MX7D based board, i.MX7D
RMU2, rename zii-imx7d-rpu2 to zii-imx7d-dev to avoid any image naming
confusion.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Fix a buggy while loop expression, that, due to '==' operator's
precedence (higher than that of '&') was always evaluating to false
rendering busy loop into a no-op.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Reconcile DDR setup code with corresponding DCD line by line, to avoid
having any doubts if the two are identical (there wer some minor
differences).
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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As observed on CFU1 board, without this delay we interrupt mask ROM
code execution even before it sets up any PLLs correctly preventing
Barebox from correctly starting up. Fixing this by adding PLL setup
code to OpenOCD script helps somewhat and Barebox starts, howerver CPU
started this way ends up being unstable crashing randomly during
further Barebox use.
Adding a simple 100 ms post reset delay resolves all of the described
issues. This is also consistent with how other ZII boards are set up.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Now that enum reset_src_type has been extended by BROWNOUT as a reason,
add it to the user documentation.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Instead of jumping through hoops using the bsp-editor gui, just use the
underlying python script for importing.
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Add a gdb script with two helper functions which use the new
pbl_barebox_break symbol to calculate the current barebox load address
on the device and loads a barebox ELF file to this address.
Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Unlike barebox, U-Boot's go command doesn't have any provisions
for cache handling and as such, bootstrapping barebox via go can
cause stale data to be erroneously executed as instructions.
The official documentation[1] suggests use of bootm instead, which
does the necessary flushing and invalidation. Update our documentation
accordingly.
[1]: http://www.denx.de/wiki/view/DULG/UBootStandalone#Section_5.12.3.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Add a driver working on top of ubootvar device and exposing U-Boot
environment variable data as files.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Cory Tusar <cory.tusar@zii.aero>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Add a driver to expose U-Boot environment variable data as a single
mmap-able device, hiding various low-level details such as:
* Preamble format differences
* Read/write logic in presence of redundant partition
Not very useful on its own, it is a crucial low-level plumbing needed
by filesystem driver introduced in the following commit.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Cory Tusar <cory.tusar@zii.aero>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Bastian Krause <bst@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Bastian Krause <bst@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Update various files in zii-imx8mq-dev:
- Add bootstrap.sh to match other boards
- Cosmetic update to openocd.cfg to match the style of other ZII
boards
- Update readme.rst to reflecte the chagnes
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Add OpenOCD scipts and notes on usage for various ZII i.MX6Q based
boards.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Add OpenOCD scipts and notes on usage for various ZII i.MX7 based
boards.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Add OpenOCD scipts and notes on usage for various ZII VF610 based
boards.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Add support for the Digi CCIMX6UL SBC Pro.
It is based on the Digi CCIMX6UL SOM with 256MB RAM and 256MB NAND
flash.
v2:
- fix includes
- rename folder to som
- switch to compressed dtb
- remove the unnecessary get_runtime_offset
all from Ahmad Fatoum
Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Table 3. Boot mode setting in the user's guide[1] lists
0010 as 'Boot from EMMC'. Adjust diagram accordingly.
[1]: https://www.mouser.com/ds/2/302/IMX8MDQLQEVKHUG-1280333.pdf
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The MCI instances got aliases in the DTS from linux upstream which changed
the eMMC devicename e.g. from disk0 to mmc2. Adapt to this.
Signed-off-by: Alexander Kurz <akurz@blala.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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In recent barebox versions, nv variables are saved automatically upon reset or
kernel start (console message "nv variable modified, will save nv variables on
shutdown" warns about that). There is no need to explicitly call saveenv.
This change was introduced in 3fadbdae.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Emphasise keywords and paths.
Signed-off-by: Juergen Borleis <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Instead of setting ramoops module parameters on the kernel command line,
add a /reserved-memory/ramoops node to the device tree via of_fixup.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Documentation-added-by: Juergen Borleis <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Add support for writing console messages to pstore.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Documentation-added-by: Juergen Borleis <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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When ramoops reserved a memory region in the kernel, it had an unhelpful
label of "persistent ram". When reading iomem, it would be repeated many
times, did not hint that it was ramoops in particular, and didn't
clarify very much about what each was used for:
0x4fdd4000 - 0x4fdf3fff (size 0x00020000) persistent ram
0x4fdf4000 - 0x4fe13fff (size 0x00020000) persistent ram
...
0x4ff74000 - 0x4ff93fff (size 0x00020000) persistent ram
0x4ff94000 - 0x4ffb3fff (size 0x00020000) persistent ram
0x4ffb4000 - 0x4ffd3fff (size 0x00020000) persistent ram
Instead, this adds meaningful labels for how the various regions are
being used:
0x4fdd4000 - 0x4fdf3fff (size 0x00020000) ramoops:dump(0/12)
0x4fdf4000 - 0x4fe13fff (size 0x00020000) ramoops:dump(1/12)
...
0x4ff74000 - 0x4ff93fff (size 0x00020000) ramoops:console
0x4ff94000 - 0x4ffb3fff (size 0x00020000) ramoops:ftrace
0x4ffb4000 - 0x4ffd3fff (size 0x00020000) ramoops:pmsg
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org>
[p.zabel@pengutronix.de: ported to Barebox from Linux commit 1227daa43bce]
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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When booting a Raspberry Pi, it is useful to extract bootargs from the
device tree that was created by the VideoCore firmware. These bootargs
contain for example settings for the framebuffer that the kernel needs
to properly set the video output.
This commit extracts the bootargs in the board initialization code and
saves them to the vc.bootargs global variable.
For example, a bootloader environment can then add the contents of this
variable to linux.bootargs.vc, which then gets included into the final
bootargs for the kernel using CONFIG_FLEXIBLE_BOOTARGS.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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On Raspberry Pi, VideoCore firmware creates a device tree that contains
information about peripherals that were initialized by VideoCore based
on settings in config.txt. Normally this device tree is passed to the
Linux kernel via a pointer in the r2 register. A bootloader needs to
pass this device tree to the kernel, or some peripherals will not work
correctly.
Since the VideoCore device tree is not compatible with barebox, we can't
just pass it to barebox_arm_entry() as the internal barebox device tree.
This commit makes the prebootloader code copy the device tree from
VideoCore into a scrap RAM area just above the area reserved for the
bootloader. Board initialization code in the bootloader proper then
copies it into a file /vc.dtb. The bootloader environment is then free
to pass this file to the kernel at boot (e.g. via bootm -o).
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Since commit: "da985aac8 firmware: drop the imx subdir" the firmware is
not longer placed in imx subdir. So the subdir can be removed from the
documentation.
Signed-off-by: Christian Hemp <christian.hemp@posteo.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Enrico Jorns <ejo@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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