We currently use the environment variable 'bootargs' to get the
Linux bootargs. This patch allows for a more flexible bootargs
generation using global variables. With it the Linux bootargs
are concatenated from multiple variables. This allows to replace
parts of the bootargs string without having to reconstruct it
completely.
With this bootargs can be constructed like:
global linux.bootargs.base="console=ttyS0,115200"
global linux.bootargs.ip="ip=dhcp"
global linux.mtdparts="physmap-flash.0:512K(nor0.barebox),-(root)"
This will then automatically be combined into a kernel bootargs
string during boot.
If the 'linux.bootargs.' variables are all empty the old standard
'bootargs' way will be used.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This implements global shell variable support. This is done by registering
a new device named 'global', so global variables are just plain device
parameters.
Global variables are useful for storing the global state in the environment.
Currently we do this by sourcing scripts instead of executing them which is
quite limiting.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Normally errno contains a positive error value. A certain unnamed developer
mixed this up while implementing U-Boot-v2. Also, normally errno is never
set to zero by any library function.
This patch fixes this.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The following patch serie improve the complete support
by adding a complete framework to aalow commands complete support.
The add also car complete support for eval and setting and executable
file support
This also include an update of the stringlist API to support asprintf
API
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Merge tag 'complete_update_support' of git://git.jcrosoft.org/barebox into next
improve complete support
The following patch serie improve the complete support
by adding a complete framework to allow commands complete support.
The add also car complete support for eval and setting and executable
file support
This also include an update of the stringlist API to support asprintf
API
bootm_initrd tests for data->initrd, but this never becomes true because
the settingof data->initrd is inside a if(bootm_initrd()). Fix this. Also,
do not support the initrd options when initrd is disabled.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We used to have a quite slow algorithm to detect the screen size
which was unused for long time. This patch changes this to first
set the cursor to x=999, y=999 and the read back the actual cursor
position. Since I am not confident that this works on all terminals
this is only used when edit is called as 'sedit'.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Arm needs 64-Bit alignment of the oftree as mentioned in the documentation
Documentation/arm/Booting.
Other architectures may need a bigger alignment so align to 4K.
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The intention of this code was to check the return value of fdt_open_into. Fix
this.
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
- print error message when the specified oftree cannot be opened
- move verbose info to top of function so that the information is
printed before something else fails.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The Android Image contains 3 components and params
- kernel
- initrd
- second stage (optional)
- tags addr
- bootargs
In fast boot the initrd is mandatory, in barebox we are less restrictive
use the initrd only if present
add to env params:
aimage_noverwrite_bootargs
Disable overwrite of the bootargs with the one present in aimage
aimage_noverwrite_tags
Disable overwrite of the tags addr with the one present in aimage
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Magnus Damm <magnus.damm@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
From bd6c5c884337ae2d4ef41d85d59c2d5ec525f8a5 Mon Sep 17 00:00:00 2001
From: Uwe Hermann <uwe@hermann-uwe.de>
Date: Fri, 6 Apr 2012 17:30:01 +0200
The loady command seems to work just fine (tested on an S3C2440 target).
Also, mark it as TRISTATE like loadb and loads.
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We used to automatically prepend the device name before the partition
name. So when we added a partition named 'barebox' to a device named
'nor0' the partition was named 'nor0.barebox'.
The Kernel can mount its rootfs based on the mtd name, for example with
root=mtd:root. If for example we have multiple mtd devices (nor and nand)
'root' is a bad name for the partition, it should better be 'nor0.root'
This patch adds an additional commandline switch to addpart to optionally
skip the automatic device name adding. This makes it possible to define
our mtd partitions like this:
nor_parts="512k(nor0.barebox)ro,128k(nor0.bareboxenv),2M(nor0.kernel),-(nor0.root)"
This way the barebox partition names stay the same, but we can now
pass the exact name to the kernel (root=mtd:nor0.root).
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We normally do not expect USB devices to be hotplugged. Instead of
rescanning each time the usb command is called, scan only once.
This makes the usb command safe for being called multiple times
without making already registered USB devices reinitialized. To
really scan multiple times a '-f' option is introduced.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds an automount command which makes it possible
to execute a script when a certain directory is first accessed.
It's the commands responsibility to make this directory available
(bringing devices up and mounting it). This results in automount
support which makes sure that from the shell every file can
be accessed without having to care for device bringup. Bringing
up devices may be expensive (USB, dhcp). The automount support
makes it easy for the environment to bringup devices when they
are actually needed.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
every struct fs_device_d contains a struct mtab_entry, so they
have a 1:1 relationship. Instead of having to use container_of
to get from a struct mtab_entry to a struct fs_device_d we can
better embed the members of struct mtab_entry into struct fs_device_d
directly.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This shrinks the resulting binary size by ~25%. Exceptions
are still handled in arm mode, so we have to explicitely
put .arm directives into the exception code. Thumb-2 mode
has been tested on i.MX51 Babbage board.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
To make the code a bit easier to read. Also, do not allow
to umount / when something else is mounted.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add nandtest command to test nand devices
and display ecc stats at the end of test.
Signed-off-by: Alexander Aring <a.aring@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
- add a usbserial command to enable/disable the serial gadget
- allow dfu and usbserial to cohexist in the same barebox
- add a timeout in u_serial so that we don't get locked if the user
enable usbserial from a UART console but doesn't consume the data
on the usbserial port created on the PC
- remove debug or verbose printf
- tested on i.MX25 & i.MX35 & usb-a926x
Signed-off-by: Eric Bénard <eric@eukrea.com>
Tested-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
It makes no sense to check the filename pointer here, because a) we have
already been using it and b) argc has been tested against 1 already, so
argv[1] should not be NULL. So, drop the checks.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
