The hush shell dynamically allocates (and re-allocates) memory for the
argument strings in the "char *argv[]" argument vector passed to
commands. Any code that modifies these pointers will cause serious
corruption of the malloc data structures and crash U-Boot, so make
sure the compiler can check that no such modifications are being done
by changing the code into "char * const argv[]".
This modification is the result of debugging a strange crash caused
after adding a new command, which used the following argument
processing code which has been working perfectly fine in all Unix
systems since version 6 - but not so in U-Boot:
int main (int argc, char **argv)
{
while (--argc > 0 && **++argv == '-') {
/* ====> */ while (*++*argv) {
switch (**argv) {
case 'd':
debug++;
break;
...
default:
usage ();
}
}
}
...
}
The line marked "====>" will corrupt the malloc data structures and
usually cause U-Boot to crash when the next command gets executed by
the shell. With the modification, the compiler will prevent this with
an
error: increment of read-only location '*argv'
N.B.: The code above can be trivially rewritten like this:
while (--argc > 0 && **++argv == '-') {
char *arg = *argv;
while (*++arg) {
switch (*arg) {
...
Signed-off-by: Wolfgang Denk <wd@denx.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>
When issuing a nand scrub command, the entered character is not displayed
this may be confusing. This patch makes the input character being
displayed if it is a 'y' so that an user knows he is about to scrub his
nand.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Legacy NAND had been scheduled for removal. Any boards that use this
were already not building in the previous release due to an #error.
The disk on chip code in common/cmd_doc.c relies on legacy NAND,
and it has also been removed. There is newer disk on chip code
in drivers/mtd/nand; someone with access to hardware and sufficient
time and motivation can try to get that working, but for now disk
on chip is not supported.
Signed-off-by: Scott Wood <scottwood@freescale.com>
The "nand markbad" and "onenand markbad" commands did not check if an
argument was passed; if this was forgotten, no error was raised but
block 0 was marked as bad.
While fixing this bug, clean up the code a bit and allow to pass more
than one block address, thus allowing to mark several blocks as bad
in a single command invocation.
Signed-off-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Many of the help messages were not really helpful; for example, many
commands that take no arguments would not print a correct synopsis
line, but "No additional help available." which is not exactly wrong,
but not helpful either.
Commit ``Make "usage" messages more helpful.'' changed this
partially. But it also became clear that lots of "Usage" and "Help"
messages (fields "usage" and "help" in struct cmd_tbl_s respective)
were actually redundant.
This patch cleans this up - for example:
Before:
=> help dtt
dtt - Digital Thermometer and Thermostat
Usage:
dtt - Read temperature from digital thermometer and thermostat.
After:
=> help dtt
dtt - Read temperature from Digital Thermometer and Thermostat
Usage:
dtt
Signed-off-by: Wolfgang Denk <wd@denx.de>
On Thu, Mar 19, 2009 at 01:30:36PM +0100, Stefan Roese wrote:
> Currently the mtdparts commands are included in the jffs2 command support.
> This doesn't make sense anymore since other commands (e.g. UBI) use this
> infrastructure as well now. This patch separates the mtdparts commands from
> the jffs2 commands making it possible to only select mtdparts when no JFFS2
> support is needed.
One more leftover... Let nboot command know about partitions even if JFFS2
support is not enabled.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Stefan Roese <sr@denx.de>
The first if statement checks for NULL ptrs, so there is no need to check
it again in later else cases (such as .oob).
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
CC: Scott Wood <scottwood@freescale.com>
This patch adds support for NAND_MAX_CHIPS to the MTD NAND layer.
Multi-chips devices are displayed as shown:
Device 0: 2x NAND 512MiB 3,3V 8-bit, sector size 128 KiB
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Currently the mtdparts commands are included in the jffs2 command support.
This doesn't make sense anymore since other commands (e.g. UBI) use this
infrastructure as well now. This patch separates the mtdparts commands from
the jffs2 commands making it possible to only select mtdparts when no JFFS2
support is needed.
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
nboot command currently does not skip bad blocks and gives read error when
loading image stored over bad block. With patch applied, nboot works as
expected:
Device 0 bad blocks:
00780000
014a0000
02000000
02cc0000
04aa0000
Loading from NAND 128MiB 3,3V 8-bit, offset 0x2c00000
Image Name: Linux-2.6.22-omap1
Created: 2008-11-20 23:44:32 UTC
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 1052520 Bytes = 1 MB
Load Address: 10008000
Entry Point: 10008000
Skipping bad block 0x02cc0000
Automatic boot of image at addr 0x10400000 ...
...
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Remove command name from all command "usage" fields and update
common/command.c to display "name - usage" instead of
just "usage". Also remove newlines from command usage fields.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Error with CONFIG_NAND_LEGACY in common/cmd_nand.c:
With current code "nand read.jffs2s" (read and skip bad blocks) is always interpreted as
"nand read.jffs2" (read and fill bad blocks with 0xff). This is because ".jffs2" is
tested before ".jffs2s" and only the first two characters are compared.
Correction:
Test for ".jffs2s" first and compare the first 7 characters.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Enable nand lock, unlock and status of lock feature.
Not every device and platform requires this, hence,
it is under define for CONFIG_CMD_NAND_LOCK_UNLOCK
Nand unlock and status operate on block boundary instead
of page boundary. Details in:
http://www.micron.com/products/partdetail?part=MT29C2G24MAKLAJG-6%20IT
Intial solution provided by Vikram Pandita <vikram.pandita@ti.com>
Includes preliminary suggestions from Scott Wood
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Implement block-skipping read/write, based on a patch from
Morten Ebbell Hestens <morten.hestnes@tandberg.com>.
Signed-off-by: Morten Ebbell Hestnes <morten.hestnes@tandberg.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Use of the non-skipping versions was almost always (if not always)
an error, and no valid use case has been identified.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Changes requested by maintainer Stefan Roese after
posting patch to U-boot mailing list.
Signed-off-by: William Juul <william.juul@tandberg.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
- Fixing leading white spaces
- Fixing indentation where 4 spaces are used instead of tab
- Removing C++ comments (//), wherever I introduced them
Signed-off-by: William Juul <william.juul@tandberg.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
A lot changed in the Linux MTD code, since it was last ported from
Linux to U-Boot. This patch takes U-Boot NAND support to the level
of Linux 2.6.22.1 and will enable support for very large NAND devices
(4KB pages) and ease the compatibility between U-Boot and Linux
filesystems.
This patch is tested on two custom boards with PPC and ARM
processors running YAFFS in U-Boot and Linux using gcc-4.1.2
cross compilers.
MAKEALL ppc/arm has some issues:
* DOC/OneNand/nand_spl is not building (I have not tried porting
these parts, and since I do not have any HW and I am not familiar
with this code/HW I think its best left to someone else.)
Except for the issues mentioned above, I have ported all drivers
necessary to run MAKEALL ppc/arm without errors and warnings. Many
drivers were trivial to port, but some were not so trivial. The
following drivers must be examined carefully and maybe rewritten to
some degree:
cpu/ppc4xx/ndfc.c
cpu/arm926ejs/davinci/nand.c
board/delta/nand.c
board/zylonite/nand.c
Signed-off-by: William Juul <william.juul@tandberg.com>
Signed-off-by: Stig Olsen <stig.olsen@tandberg.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
This patch fixes NAND related printf format warning. Those warnings are
now visible since patch dc4b0b38d4
[Fix printf errors.] by Andrew Klossner has been applied. Thanks, this is
really helpful.
Signed-off-by: Stefan Roese <sr@denx.de>
Global FIT image operations like format check cannot be performed on
a first sector data, defer them to the point when whole FIT image was
uploaded to a system RAM.
Signed-off-by: Marian Balakowicz <m8@semihalf.com>
Partial ('cmd_nand' case) Acked-by: Grant Erickson <gerickson@nuovations.com>
NAND and DOC bits Acked-by: Scott Wood <scottwood@freescale.com>
The nand_info array is declared as extern in several .c files.
Those days, nand.h contains a reference to the array, so there is
no need to declare it elsewhere.
Signed-off-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Scott Wood <scottwood@freescale.com>
This patch allocates a set of show_boot_progress() IDs for new uImage format
and adds show_boot_progress() calls in new uImage format handling code.
Signed-off-by: Marian Balakowicz <m8@semihalf.com>
This patch introduces the following prefix convention for the
image format handling and bootm related code:
genimg_ - dual format shared code
image_ - legacy uImage format specific code
fit_ - new uImage format specific code
boot_ - booting process related code
Related routines are renamed and a few pieces of code are moved around and
re-grouped.
Signed-off-by: Marian Balakowicz <m8@semihalf.com>
This patch adds framework for dual format images. Format detection is added
and the bootm controll flow is updated to include cases for new FIT format
uImages.
When the legacy (image_header based) format is detected appropriate
legacy specific handling is invoked. For the new (FIT based) format uImages
dual boot framework has a minial support, that will only print out a
corresponding debug messages. Implementation of the FIT specific handling will
be added in following patches.
Signed-off-by: Marian Balakowicz <m8@semihalf.com>
- Add inline helper macros for basic header processing
- Move common non inline code common/image.c
- Replace direct header access with the API routines
- Rename IH_CPU_* to IH_ARCH_*
Signed-off-by: Marian Balakowicz <m8@semihalf.com>
Fix usage of do_div() in nand erase|read|write process output.
The last patch to nand_util.c introduced do_div() instead of libgcc's
implementation. But do_div() returns the quotient in its first
macro parameter and not as result.
Signed-off-by: Matthias Fuchs <matthias.fuchs@esd-electronics.com>
This config option sets the default for the progress information
output behavior that can also be configured through the 'quiet'
environment variable.
The legacy NAND code does not print the current progress info
on the console. So this option is for backward compatibility for
units that are in the field and where setting the quiet variable
is not an option. With CFG_NAND_QUIET set to '1' the console
progress info is turned off. This can still be overwritten
through the environment variable.
Signed-off-by: Matthias Fuchs <matthias.fuchs@esd-electronics.com>
The old implementation of command nboot does not support reading the image from
NAND flash with skipping of bad blocks. The patch implements a new version of
the nboot command: by calling nboot.jffs2 from the u-boot command line the
command will load the image from NAND flash with respect to bad blocks (by using
nand_read_opts()). This is similar to e.g. the NAND read command: "nand
read.jffs2 ...".
Signed-off-by: Thomas Knobloch <knobloch@siemens.com>
Signed-off-by: Stefan Roese <sr@denx.de>
This is a compatibility step that allows both the older form
and the new form to co-exist for a while until the older can
be removed entirely.
All transformations are of the form:
Before:
#if (CONFIG_COMMANDS & CFG_CMD_AUTOSCRIPT)
After:
#if (CONFIG_COMMANDS & CFG_CMD_AUTOSCRIPT) || defined(CONFIG_CMD_AUTOSCRIPT)
Signed-off-by: Jon Loeliger <jdl@freescale.com>
- Show on the Status LEDs, some States of the board.
- Get the MAC addresses from the EEProm
- use PREBOOT
- use the CF on the board.
- check the U-Boot image in the Flash with a SHA1
checksum.
- use dynamic TLB entries generation for the SDRAM
Signed-off-by: Heiko Schocher <hs@denx.de>
chpart, nboot and NAND subsystem related commands now accept also partition
name to specify offset.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Stefan Roese <sr@denx.de>
- JFFS2 related commands implemented in mtd-utils style
- Support for bad blocks
- Bad block testing commands
- NAND lock commands
Please take a look at doc/README.nand for more details
Patch by Guido Classen, 10 Oct 2006
code and in SoC code). Boards using the old way have CFG_NAND_LEGACY and
BOARDLIBS = drivers/nand_legacy/libnand_legacy.a added. Build breakage for
NETTA.ERR and NETTA_ISDN - will go away when the new NAND support is
implemented for these boards.
Add support for WindRiver's SBC8560 board
* Patch by Nicolas Lacressonniere, 24 Jun 2004
Small Bugs fixes for "at91rm9200dk" board:
- Timing modifications for SPI DataFlash access
- Fix NAND flash detection bug
* Patch by Nicolas Lacressonniere, 24 Jun 2004:
Add Support for Flash AT49BV6416 for AT91RM9200DK board
- allow for longer timeouts for USB mass storage devices
* Patch by Denis Peter, 11 Sep 2003:
- fix USB data pointer assignment for bulk only transfer.
- prevent to display erased directories in FAT filesystem.
* Change output format for NAND flash - make it look like for other
memory, too
Add support for LynuxWorks Kernel Downloadable Images (KDIs).
Both LynxOS and BlueCat linux KDIs are supported.
* Patch by Richard Woodruff, 25 Jul 2003:
use more reliable reset for OMAP/925T
* Patch by Nye Liu, 25 Jul 2003:
fix typo in mpc8xx.h
* Patch by Richard Woodruff, 24 Jul 2003:
Fixes for cmd_nand.c:
- Fixed null dereferece which could result in incorrect ECC values.
- Added support for devices with no Ready/Busy signal hooked up.
- Added OMAP1510 read/write protect handling.
- Fixed nand.h's ECCPOS. A conflict existed with POS5 and badblock
for non-JFFS2.
- Switched default ECC to be JFFS2.
- remove trailing white space, trailing empty lines, C++ comments, etc.
- split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c)
* Patches by Kenneth Johansson, 25 Jun 2003:
- major rework of command structure
(work done mostly by Michal Cendrowski and Joakim Kristiansen)
Fixed rarp boot method for IA32 and other little-endian CPUs.
* Patch by Marc Singer, 28 May 2003:
Added port I/O commands.
* Patch by Matthew McClintock, 28 May 2003
- cpu/mpc824x/start.S: fix relocation code when booting from RAM
- minor patches for utx8245
* Patch by Daniel Engström, 28 May 2003:
x86 update
* Patch by Dave Ellis, 9 May 2003 + 27 May 2003:
add nand flash support to SXNI855T configuration
fix/extend nand flash support:
- fix 'nand erase' command so does not erase bad blocks
- fix 'nand write' command so does not write to bad blocks
- fix nand_probe() so handles no flash detected properly
- add doc/README.nand
- add .jffs2 and .oob options to nand read/write
- add 'nand bad' command to list bad blocks
- add 'clean' option to 'nand erase' to write JFFS2 clean markers
- make NAND read/write faster
* Patch by Rune Torgersen, 23 May 2003:
Update for MPC8266ADS board
- Add port to MPC555/556 microcontrollers
- Add support for cmi customer board with
Intel 28F128J3A, 28F320J3A or 28F640J3A flash.
* Patch by Rick Bronson, 28 Mar 2003:
- fix common/cmd_nand.c
- add threads / scheduler example code
* Add patches by Robert Schwebel, 31 Mar 2003:
- add ctrl-c support for kermit download
- align bdinfo output on ARM
* Add CPU ID, version, and clock speed for INCA-IP
Add support for Atmel AT91RM9200DK w/NAND
* Patches by Robert Schwebel, 19 Mar 2003:
- use arm-linux-gcc as default compiler for ARM
- fix i2c fixup code
- fix missing baudrate setting
- added $loadaddr / CFG_LOAD_ADDR support to loadb
- moved "ignoring trailing characters" _before_ u-boot wants to
print out diagnostics messages; removes bogus characters at the
end of transmission
* Patch by John Zhan, 18 Mar 2003:
Add support for SinoVee Microsystems SC8xx boards
* Patch by Rolf Offermanns, 21 Mar 2003:
ported the dnp1110 related changes from the current armboot cvs to
current u-boot cvs. smc91111 does not work. problem marked in
smc91111.c, grep for "FIXME".
* Patch by Brian Auld, 25 Mar 2003:
Add support for STM flash chips on ebony board
* Add PCI support for MPC8250 Boards (PM825 module)
* Patch by Stefan Roese, 25 Mar 2003:
