Disks beyond 2T in size use blocksizes of 4096 bytes. However a lot of
code in u-boot  still assumes a 512 byte blocksize.
This patch fixes the handling of GPTs.
Signed-off-by: NEgbert Eich <eich@suse.com>

Devices that used to have a whole disk FAT filesystem but got then
partitioned will most likely still have a FAT or FAT32 signature
in the first sector as this sector does not get overwritten by
a partitioning tool (otherwise the tool would risk to kill the mbr).

The current partition search algorithm will erronously detects such
a device as a raw FAT device.

Instead of looking for the FAT or FAT32 signatures immediately we
use the same algorithm as used by the Linux kernel and first check
for a valid boot indicator flag on each of the 4 partitions.
If the value of this flag is invalid for the first entry we then
do the raw partition check.
If the flag for any higher partition is wrong we assume the device
is neiter a MBR nor PBR device.
Signed-off-by: NEgbert Eich <eich@suse.com>

The number 512 appears quite a bit in the mmc code. Add a constant for this
so that it can be used here and in other parts of the code (e.g. SPL code
which loads from mmc).
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NVadim Bendebury <vbendeb@google.com>

Signed-off-by: NWolfgang Denk <wd@denx.de>
Acked-by: NStefan Roese <sr@denx.de>

Align some comments.
Signed-off-by: NWolfgang Denk <wd@denx.de>
Acked-by: NStefan Roese <sr@denx.de>

Signed-off-by: NWolfgang Denk <wd@denx.de>

Conflicts:
	include/configs/m28evk.h

Change all "#define<TAB>" sequences into "#define<SPACE>"
Signed-off-by: NWolfgang Denk <wd@denx.de>
Acked-by: NMarek Vasut <marex@denx.de>

Add "setexpr name gsub r s [t]" and "setexpr name sub r s [t]"
commands which implement substring matching for the regular
expression <r> in the string <t>, and substitution of the string <s>.
The result is assigned to the environment variable <name>.  If <t> is
not supplied, the previous value of <name> is used instead.  "gsub"
performs global substitution, while "sub" will replace only the first
substring.

Both commands are closely modeled after the gawk functions with the
same names.

Examples:

- Generate broadcast address by substituting the last two numbers of
  the IP address by "255.255":

  	=> print ipaddr
	ipaddr=192.168.1.104
	=> setexpr broadcast sub "(.*\\.).*\\..*" "\\1255.255" $ipaddr
	broadcast=192.168.255.255

- Depending on keyboard configuration (German vs. US keyboard) a
  barcode scanner may initialize the MAC address as C0:E5:4E:02:06:DC
  or as C0>E5>4E>02>06>DC.  Make sure we always have a correct value:

	=> print ethaddr
	ethaddr=C0>E5>4E>02>06>DC
	=> setexpr ethaddr gsub > :
	ethaddr=C0:E5:4E:02:06:DC

- Do the same, but substitute one step at a time in a loop until no
  futher matches:

	=> setenv ethaddr C0>E5>4E>02>06>DC
	=> while setexpr ethaddr sub > :
	> do
	> echo -----
	> done
	ethaddr=C0:E5>4E>02>06>DC
	-----
	ethaddr=C0:E5:4E>02>06>DC
	-----
	ethaddr=C0:E5:4E:02>06>DC
	-----
	ethaddr=C0:E5:4E:02:06>DC
	-----
	ethaddr=C0:E5:4E:02:06:DC
	-----
	C0:E5:4E:02:06:DC: No match
	=> print ethaddr
	ethaddr=C0:E5:4E:02:06:DC

etc.

To enable this feature, the CONFIG_REGEX option has to be defined in
the board config file.
Signed-off-by: NWolfgang Denk <wd@denx.de>

Simplify the argument checking for the "setexpr" command.  This is
done mainly to make future extensions easier.

Also improve the help message for the one argument version of the
command - this does not "load an address", but a value, which in
this context may be a plain number or a pointer dereference.
Signed-off-by: NWolfgang Denk <wd@denx.de>

When CONFIG_REGEX is enabled, the new option "-e" becomes available
which causes regular expression matches to be used.  This allows for
example things like these:

- print all MAC addresses:

	=> env grep -e eth.*addr
	eth1addr=00:10:ec:80:c5:15
	ethaddr=00:10:ec:00:c5:15

- print all variables that have at least 2 colons in their value:

	=> env grep -v -e :.*:
	addip=setenv bootargs ${bootargs} ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}:${netdev}:off
	panic=1
	eth1addr=00:10:ec:80:c5:15
	ethaddr=00:10:ec:00:c5:15
	ver=U-Boot 2013.04-rc1-00289-g497746b-dirty (Mar 22 2013 - 12:50:25)

etc.
Signed-off-by: NWolfgang Denk <wd@denx.de>

Downloaded from http://slre.sourceforge.net/
and adapted for U-Boot environment.

Used to implement regex operations on environment variables.
Code size is ~ 3.5 KiB on PPC.

To enable this code, define the  CONFIG_REGEX  option in your board
config file.

Note:  There are more recent versions of the SLRE library available at
http://slre.googlecode.com ; unfortunately, the new code has a heavily
reorked API which makes it less usable for our purposes:
- the return code is strings, which are more difficult to process
- we don't get any information any more which sub-string of the data
  was matched by the given regex
- it is much more cumbersome to work with arbitrary expressions, where
  for example the number of substrings for capturing are not known at
  compile time
Also, there does not seem to be any real changes or improvements of
the functionality.

Because of this, we deliberately stick with the older code.

Note 2: the test code (built when SLRE_TEST is defined) was modified
to allow for more extensive testing; now we can test the regexp
matching on all lines on a text file (instead of the whole data in the
file as a single block).
Signed-off-by: NWolfgang Denk <wd@denx.de>

Add options to "env grep" command:

-n : search only the envrironment variable names
-v : search only their values
-b : search both names and values (= default)

An option "--" will stop parsing options, so to print variables that
contain the striing "- " please use:

	env grep -- "- "

Or to print all environment varioables which have a '-' in their name,
use:

	env grep -n -- -
Signed-off-by: NWolfgang Denk <wd@denx.de>

Also drop hstrstr_r() which is not needed any more.
The new code is way more flexible.
Signed-off-by: NWolfgang Denk <wd@denx.de>

The output of "env grep" is unsorted, and printing is done by a
private implementation to parse the hash table.  We have all the
needed code in place in hexport_r() alsready, so let's use this
instead.  Here we prepare the code for this, without any functional
changes yet.
Signed-off-by: NWolfgang Denk <wd@denx.de>

block_read returns unsigned long, so it doesn't make sense to check for
< 0. and neither does marking the header structure as const and then
casting away the constness to load data into it.

Also cleanup some unneeded pointer casting while we're at it.
Signed-off-by: NPeter Korsgaard <peter.korsgaard@barco.com>
Reviewed-by: NTom Rini <trini@ti.com>

Enable these options to use FITs on sandbox.
Signed-off-by: NSimon Glass <sjg@chromium.org>

This allows write of files from the host filesystem in sandbox. There is
currently no concept of overwriting the file and removing its existing
contents - all writing is done on top of what is there. This means that
writing 10 bytes to the start of a 1KB file will only update those 10
bytes, not truncate the file to 10 byte slong.

If the file does not exist it is created.
Signed-off-by: NSimon Glass <sjg@chromium.org>

Add a new method for saving that filesystems can implement. This mirrors the
existing load method.
Signed-off-by: NSimon Glass <sjg@chromium.org>

Enhance the source command to work with sandbox, by using map_sysmem() to
convert a ulong address into a pointer.
Signed-off-by: NSimon Glass <sjg@chromium.org>

This allows passing of entire scripts to sandbox with the -c argument,
which is useful for testing. Commands can be delimited with a newline
or semicolon.
Signed-off-by: NSimon Glass <sjg@chromium.org>

This reverts commit 3b73459e.

In practice it doesn't seem like a good idea to make the the working
FDT point to the control FDT. Now that we can access the control FDT
using the 'fdt' command, there is no need for this feature. Remove it.
Signed-off-by: NSimon Glass <sjg@chromium.org>

If we have no FDT, don't attempt to read from it. This allows sandbox to
run without an FDT if required.
Signed-off-by: NSimon Glass <sjg@chromium.org>

By using map_sysmem() we can get the fdt command to work correctly with
sandbox.
Signed-off-by: NSimon Glass <sjg@chromium.org>

There is an existing fdt command to deal with the working FDT. Enhance this
to support the control FDT also (CONFIG_OF_CONTROL).
Signed-off-by: NSimon Glass <sjg@chromium.org>

This conversion is required in a number of places in U-Boot. Add a
standard function to provide this feature, so we avoid all the different
variations in the way it is coded.
Signed-off-by: NSimon Glass <sjg@chromium.org>

At present this only checks working_fdt, but we want to check other FDTs
also. So add the FDT to check as a parameter to fdt_valid().
Signed-off-by: NSimon Glass <sjg@chromium.org>

With sandbox it is tricky to add an FDT to the image at build time (or
later) since we build an ELF file, not a plain binary, and the address
space of the whole U-Boot is not accessible in the emulated memory map
of sandbox.

Sandbox can read files directly from the host, though, so add an option
to read an FDT from a host file on start-up.
Signed-off-by: NSimon Glass <sjg@chromium.org>

Add generic board support for sandbox. and remove the old board init code.

Select CONFIG_SYS_GENERIC_BOARD for sandbox now that this is supported.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NTom Rini <trini@ti.com>

In many cases, pointers to memory are passed around, and these pointers
refer to U-Boot memory, not host memory. This in itself is not a
problem.

However, in a few places, we cast that pointer back to a ulong (being
a U-Boot memory address). It is possible to convert many of these cases
to avoid this. However there are data structures (e.g. struct
bootm_headers) which use pointers. We could with a lot of effort adjust
the structs and all code that uses them to use ulong instead of pointers.

This seems like an unacceptable cost, since our objective with sandbox
is to minimise the impact on U-Boot code while maximising the features
available to sandbox.

Therefore, create a map_to_sysmem() function which converts from a
pointer to a U-Boot address. This can be used sparingly when needed.
Signed-off-by: NSimon Glass <sjg@chromium.org>

At present the generic board error can occur when configuring U-Boot, or
during distclean, but this is incorrect. The existing autoconf.mk may come
from an earlier U-Boot configuration which is about to be overwritten.

Make the error conditional so that it will only be triggered when we are
actually building U-Boot.

This avoids a problem where the system is being reconfigured to remove
CONFIG_SYS_GENERIC_BOARD on an architecture that does not support it.
Currently this will print an error and require the manual removal of
include/autoconf.mk.
Signed-off-by: NSimon Glass <sjg@chromium.org>

Devices in CONFIG_SYS_POST_I2C_IGNORES list may be absent
and the rule is not to report I2C POST failure for devices
in this list. Currently this doesn't work since probing for
these devices isn't done and thus they are not marked as
successfully probed. Ignore optional devices when checking
for devices that didn't respond.
Signed-off-by: NAnatolij Gustschin <agust@denx.de>

Watchdog can be used on Microblaze, PPC and Zynq hw designs.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
Reviewed-by: NTom Rini <trini@ti.com>

Fix microblaze soft reset function and disable
all cpu features. Especially disable caches because
IRQs were off by disable_interrupts().
Reported-by: NJohn Williams <john.williams@xilinx.com>
Signed-off-by: NMichal Simek <monstr@monstr.eu>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Setup environment and enable netconsole.
Signed-off-by: NMichal Simek <monstr@monstr.eu>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
Reviewed-by: NTom Rini <trini@ti.com>

Remove CONFIG_SYS_RESET_ADDRESS macro.
It was there from historical point of view
when soft reset was just jump to u-boot text start
(not used right now).
Signed-off-by: NMichal Simek <monstr@monstr.eu>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

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Easier for using with patman.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>