FAT: Fix error path ...

- forward the return value of chk_mounted to detect whether mount succeeded
- free resources on mount failure

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

hush source: expand $PATH ...

The behaviour of other shells suggest that with source or '.'
the path should be resolved using the PATH environment variable. Do
the same in barebox.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs open: pass error from stat ...

We used to simply answer with -ENOENT in open() when the
initial call to stat() failed. Instead, forward the error from
stat().

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Add automount support ...

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>

fs: drop struct mtab_entry ...

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>

fs: change get_fs_device_by_path prototype ...

get_fs_device_by_path returns a struct device_d instead of what the
name suggests a struct fs_device_d. Also it returns the rootpath
of the corresponding fs_device. This patch changes the name of
this function to get_fs_device_and_root_path to better reflect what
the function does and changes the return type to struct fs_device_d.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

i.MX51: Remove GPIO2.6 setup from lowlevel_init ...

Remove GPIO2.6 setup from lowlevel_init. It can be defined in board
initialization code if it necessary.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

defaultenv: add dhcp-barebox option ...

barebox will use DHCP and pass the result to the kernel
update the help

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

defaultenv: add bootp support ...

use rootpath as nfsroot and bootfile as kernelimage if present
when ip mode is dhcp

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

at91: set dhcp vendor id on Atmel Reference board ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

i.MX51: add support for UART3 ...

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

pcm049_xload_defconfig: activate Thumb-2 support ...

To reduce the size of the MLO we have to activate thumb-2 support.
Otherwise the board will not boot.

Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

devices-gpmc-nand: Add OMAP4 gpmc nand timings ...

Add a OMAP4 specific GMPC nand config for pcm049 and phyCARD-A-XL2 to increase
performance. Also add the possiblility to pass a board GPMC nand config.

Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

pcm049: Update GPMC net conf ...

Updated GPMC settings for ethernet to increase performance.

Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

pcm049: Update muxing ...

Update muxing setup for phyCORE-OMAP4.

Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

pcm049: Update RAM timings ...

Updated RAM Timings for phyCORE-OMAP4.

Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge remote-tracking branch 'jean/at91-update' into next

ENV: remove kernelimage_type from env/config ...

drop kernelimage_type bootm now boots all of them.

Signed-off-by: Jan Weitzel <j.weitzel@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

NET: Add support for ks8851_mll ...

Add support for KS8851 16bit MLL chip from Micrel Inc.

Signed-off-by: Jan Weitzel <j.weitzel@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

omap: add support for phycard-a-xl2 ...

Support for omap4 based Phytec phyCARD-A-XL2 board

Signed-off-by: Jan Weitzel <j.weitzel@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

drivers/mtd: improve docg3 write speed ...

When programming or erasing a page, don't wait
systematically for 3s, but finish the operation as soon as
the hardware has finished, and timeout if 3 seconds have
passed.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

imx_nand_load_image: change all users to use barebox_image_size ...

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: dhcp: allow to set transmitted vendor id ...

For net boot setups it is useful to submit boot params like server or
bootfile over dhcp. To distinguish barebox from e.g. pxe machines,
a custom vendor id can be sent in dhcp discover/request messages.

E.g. the ISC dhcp server can be configured with

| if substring(option vendor-class-identifier,0,8) = "barebox:" {
|       next-server             192.168.3.24;
|       server-name             "192.168.3.24";
|       option tftp-server-name "192.168.3.24";
|       option root-path = concat("/srv/sysroots/by-mac/",
|          binary-to-ascii (16, 8, "-", substring (hardware, 1, 6)));
| }

to sent boot params which are valid for barebox hosts only.

Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
Jean-Christophe PLAGNIOL-VILLARD:
 - update the use dhcp command option
 - support to set the vendor via env dhcp_vendor_id
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

at91sam9260ek/9g20ek: update defconfig ...

- enable MMU support
 - set max size to 256KiB

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

at91sam9m10g45ek: update defconfig ...

- use tslf
 - bootm: enable oftree and uimage support
 - enable mmu support
 - drop cfi support (no nor on the board)

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

at91sam9m10g45ek: add leds support ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

at91sam9m10g45ek: update partition layout ...

This will allow to boot from nand with the bootstrap.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

at91sam9261ek/9g10ek: update board supprt ...

update fancy prompt to be the same as the other Atmel board
 use the same feature on 9g10ek and 9261ek

 - use tlsf
 - enable MMU
 - set max size to 256KiB
 - bootm: add initrd support
 - nand: drop non used hw ecc and oob device

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

at91sam9261ek/9g10ek: add gpio Keyboard support ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

at91sam9261ek/9g10ek: add dfu and usb serial support ...

if bp3 is pressed 5s during boot enable dfu otherwise usbserial

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>