am335x-evm config: decrease bootdelay to 1s and mount rootfs RO
A fast boot is important to the beaglebone, so save 2 seconds here by
decreasing bootdelay. This is still plenty time to break into the prompt,
I do that at least once a day.
Mount the rootfs RO by default, this is needed to make fsck succeed
without resorting to an initramfs.
Joel A Fernandes [Tue, 18 Sep 2012 04:30:51 +0000 (04:30 +0000)]
am33xx: Fix fetching of mmc1 bootmode from bootrom for AM33XX
U-boot should not ignore getting the bootmode passed on from the bootrom.
With this, U-boot SPL knows it was loaded from MMC1 and use this info to
read full U-boot from MMC1 as well.
Cc: pprakash@ti.com Cc: trini@ti.com Signed-off-by: Joel A Fernandes <joelagnel@ti.com> Signed-off-by: Tom Rini <trini@ti.com>
This patch adds support for networking in SPL. Some devices are
capable of loading SPL via network so it makes sense to load the
main U-Boot binary via network too. This patch tries to use
existing network code as much as possible. Unfortunately, it depends
on environment which in turn depends on other code so SPL size
is increased significantly. No effort was done to decouple network
code and environment so far.
Signed-off-by: Ilya Yanok <ilya.yanok@cogentembedded.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Tom Rini <trini@ti.com>
Vendor Class Identifier option is common to BOOTP and DHCP and
can be useful without PXE. So send VCI in both BOOTP and DHCP
requests if CONFIG_BOOTP_VCI_STRING is defined.
Signed-off-by: Ilya Yanok <ilya.yanok@cogentembedded.com> Signed-off-by: Tom Rini <trini@ti.com>
Commit cfda5aeab89d73779e26f0d34cf10f64caa67431
(cmd_fat: use common get_device_and_partition function)
introduced a warning:
cmd_fat.c: In function 'do_fat_fswrite':
cmd_fat.c:178:8: warning: unused variable 'ep' [-Wunused-variable]
Fix it.
Signed-off-by: Anatolij Gustschin <agust@denx.de> Reported-by: Albert ARIBAUD <albert.u.boot@aribaud.net> Tested-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
Lei Wen [Fri, 28 Sep 2012 04:26:45 +0000 (04:26 +0000)]
lib: zlib: remove the limitation for cannot using 0 as start
We often need the requirement that compressing those memory range start
from 0, but the default deflate code in zlib prevent us to do this.
Considering the special case of uboot, that it could access all memory
range, it is reasonable to be able to also take the address space from 0
into compression.
Pavel Herrmann [Thu, 27 Sep 2012 23:18:03 +0000 (23:18 +0000)]
remove unnecessary code in ata_piix
We set sata_curr_device to 0 right after returning from init_sata(), so there's
no point in setting it to the last scanned driver at this point.
Note: there are more duplicities with cmd_sata, but those might be required,
as the code seems to reset the entire controller on every scan, ignoring the
requested port number.
Signed-off-by: Pavel Herrmann <morpheus.ibis@gmail.com>
Stephen Warren [Fri, 28 Sep 2012 05:34:09 +0000 (05:34 +0000)]
disk: allow - or empty string to fall back to $bootdevice
Commit 10a37fd "disk: get_device_and_partition() "auto" partition"
prevented the use of "-" on the command-line to request fallback to the
$bootdevice environment variable instead. This patch allows that, or an
empty string "" to be used.
Tom Rini [Mon, 27 Aug 2012 21:58:28 +0000 (14:58 -0700)]
SPL: Rework how we inform about un-headered images
First, remove the puts from the case where we don't have an mkimage
header as this is somewhat common and intentional for no-arg target
images. Second, rework the final switch statement in board_init_r to,
in the case of !CONFIG_SPL_OS_BOOT be only about doing debug prints
about if we know what the magic is or not (the CONFIG_SPL_OS_BOOT case
is unchanged). Then we call jump_to_image_no_args(). This gives us the
same behavior as before but with slightly smaller code.
Stefan Roese [Tue, 28 Aug 2012 08:50:59 +0000 (10:50 +0200)]
SPL: Enable use of custom defined U-Boot entry point
By setting CONFIG_SYS_UBOOT_START boards can now use a different entry
point for their U-Boot image. So the U-Boot entry point is not fixed
to CONFIG_SYS_TEXT_BASE any more.
Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Tom Rini <trini@ti.com>
Stefan Roese [Mon, 27 Aug 2012 10:50:58 +0000 (12:50 +0200)]
SPL: Add option to skip copying of the mkimage header
On some system (e.g. powerpc), the load-address and entry-point is
located at address 0. So the current approach to load the image
(payload) including the header to the address "load-address - 64"
can't work here.
This patch adds an flag to skip this copying including header to
the SPL framework. By setting SPL_COPY_PAYLOAD_ONLY, only the
playload will be copied. This will be used by the SPL NOR flash
driver on powerpc.
Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Tom Rini <trini@ti.com>
Stefan Roese [Mon, 27 Aug 2012 10:50:59 +0000 (12:50 +0200)]
SPL: Add NOR flash booting support
SPL NOR flash booting support is quite simple. Only copying of the
images is needed.
On MPC5xxx we need to make sure to only use the standard memcpy()
implementation and not the MPC5xxx specific one. As the MPC5xxx
version has some complexity which is not needed for this SPL
booting.
Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Tom Rini <trini@ti.com>
Tom Rini [Mon, 20 Aug 2012 16:31:52 +0000 (09:31 -0700)]
da850: Add README.da850
This file documents when to build for da850evm and when to build for
da850_am18xxevm. It also documents how to write the u-boot.ais file to
persistent storage (such as SPI), in some cases as well as how to write
a recovery image.
Signed-off-by: Tom Rini <trini@ti.com> Acked-by: Christian Riesch <christian.riesch@omicron.at> Acked-by: Prabhakar Lad <prabhakar.lad@ti.com>
Sughosh Ganu [Mon, 27 Aug 2012 19:23:37 +0000 (00:53 +0530)]
hawkboard: Update config file to work with common spl framework
The common spl framework expects the u-boot payload size through
CONFIG_SYS_MONITOR_LEN. Define the macro with the u-boot's size. With
this change, CONFIG_SYS_NAND_U_BOOT_SIZE is no longer required. Delete
the same.
Signed-off-by: Tom Rini <trini@ti.com> Signed-off-by: Sughosh Ganu <urwithsughosh@gmail.com>
Tom Rini [Tue, 14 Aug 2012 19:27:13 +0000 (12:27 -0700)]
ARM: SPL: Convert davinci to CONFIG_SPL_FRAMEWORK
- Convert the non-relocation part of board_init_f to spl_board_init, turn on CONFIG_SPL_BOARD_INIT in the configs.
- Remove duplicated code.
- Add spl_boot_device() that returns the statically chosen boot device.
Some DHCP servers (notably dnsmasq) always transmit DHCP Option 28,
Broadcast Address as specified in RFC 2132. Without this patch u-boot
displays the warning:
*** Unhandled DHCP Option in OFFER/ACK: 28
The patch suppresses the warning and ignores DHCP Option 28. There is
no environment variable to set the broadcast address into and if for
some reason u-boot needs the broadcast it can be calculated from
ipaddr and netmask.
Now DT support is becoming common for all new SoC's. Hence it is better
to have option for getting specific FDT from the remote server.
This patch adds support for new label i.e. 'fdt'. This will allow to
retrieve 'fdt blob' from the remote server. This patch take care for
the following scenarios.
The usage of fdt is optional.
The 'fdt blob' can be retrieved from tftp or can be available locally
or can be absent.
If 'fdt_addr_r' environment variable is set and 'fdt' label is defined
retrieve 'fdt blob' from tftp. 'fdt_addr_r' is then passed along bootm
command.
If 'fdt_addr' is set and 'fdt blob' is not retrieved from the tftp pass
'fdt_addr' to bootm command. In this case 'fdt blob' will be available
at 'fdt_addr'.
If 'fdt_addr' is not set and 'fdt blob' is not retrieve from tftp pass
NULL to boot command. In this case 'fdt blob' is not required and absent.
Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org> Acked-by: Jason Hobbs <jason.hobbs@calxeda.com>
Marek Vasut [Wed, 29 Aug 2012 03:49:50 +0000 (03:49 +0000)]
FEC: Rework the TX wait mechanism
The mechanism waiting for transmission to finish in fec_send() now
relies on the E-bit being cleared in the TX buffer descriptor. In
case of data cache being on, this means invalidation of data cache
above this TX buffer descriptor on each test for the E-bit being
cleared.
Apparently, there is another way to check if the transmission did
complete. This is by checking the TDAR bit in the X_DES_ACTIVE
register. Reading a register does not need any data cache invalidation,
which is beneficial.
Rework the sequence that wait for completion of the transmission so that
the TDAR bit is tested first and afterwards check the E-bit being clear.
This cuts down the number of cache invalidation calls to one.
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Joe Hershberger <joe.hershberger@ni.com> Cc: Fabio Estevam <festevam@gmail.com> Cc: Otavio Salvador <otavio@ossystems.com.br> Cc: Stefano Babic <sbabic@denx.de>
Marek Vasut [Wed, 29 Aug 2012 03:49:49 +0000 (03:49 +0000)]
FEC: Remove endless loop in the FEC driver
The FEC hardware sometimes errors out on data transfer and hangs in
the tightloop adjusted by this patch. So add timeout into the tightloop
to make such a hang recoverable.
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Joe Hershberger <joe.hershberger@ni.com> Cc: Fabio Estevam <festevam@gmail.com> Cc: Otavio Salvador <otavio@ossystems.com.br> Cc: Stefano Babic <sbabic@denx.de>
Marek Vasut [Sun, 26 Aug 2012 10:19:21 +0000 (10:19 +0000)]
FEC: Properly align address over the buffers for cache ops
Align the address that's to be invalidated/flushed properly.
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Benoit Thebaudeau <benoit.thebaudeau@advans> Cc: Eric Nelson <eric.nelson@boundarydevices.com> Cc: Fabio Estevam <festevam@gmail.com> Cc: Joe Hershberger <joe.hershberger@ni.com>
Marek Vasut [Sun, 26 Aug 2012 10:19:20 +0000 (10:19 +0000)]
FEC: Do not pass unaligned buffer to network stack
Do not pass unaligned RX buffer to the upper layers. The upper layer,
especially in the ARP case, recycles the buffer and passes it back into
the FEC, into it's TX path. With caches enabled, the FEC hangs on this
from time to time.
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Benoit Thebaudeau <benoit.thebaudeau@advans> Cc: Eric Nelson <eric.nelson@boundarydevices.com> Cc: Fabio Estevam <festevam@gmail.com> Cc: Joe Hershberger <joe.hershberger@ni.com> Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
This patch add support for the configuration of an external switch from
the 88E6xxx series from Marvell trough an MDIO link using indirect
adressing. This can be used if we do not want to use an EEPROM for the
configuration.
This driver is not generic and was not tested on other switches than the 88e6352. This is proposed as a first implementation that is somewhat
limited but works and that can be used as a basis for further
developments for this switch family.
Tom Rini [Wed, 22 Aug 2012 22:31:05 +0000 (15:31 -0700)]
SPL: Create arch/arm/lib/spl.c for board_init_f and jump_to_image_linux
In SPL (CONFIG_SPL_FRAMEWORK) board_init_f must setup the stack pointer,
clear the BSS and call board_init_r. We mark this as weak as some
platforms may need to perform additional initalization at this point.
We provide a gd that we know will be in a usable location, once the BSS
has been cleared to help with this as well. Finally, we no longer call
relocate_code so remove that from the armv7 version.
Next, both board_init_f and jump_to_image_linux are going to be
inherently arch-specific, so move these versions to arch/arm/lib/spl.c
Tom Rini [Mon, 13 Aug 2012 19:03:19 +0000 (12:03 -0700)]
SPL: Move the omap SPL framework to common/spl
Add a new flag, CONFIG_SPL_FRAMEWORK to opt into the common/spl SPL
framework, enable on all of the previously using boards. We move the
spl_ymodem.c portion to common/ and spl_mmc.c to drivers/mmc/. We leave
the NAND one in-place as we plan to replace it later in this series.
We use common/spl to avoid linker problems with respect to merging
constant strings in objects. Otherwise all strings in common/ will be
linked in and kept which grows SPL in size too much.
Tom Rini [Tue, 14 Aug 2012 19:26:08 +0000 (12:26 -0700)]
ARM: SPL: Move gpmc_init() to spl_board_init()
This is an OMAP/related-specific function, move calling it to
spl_board_init() and turn on CONFIG_SPL_BOARD_INIT on the boards that
enabled NAND and didn't enable this already.
Tom Rini [Tue, 14 Aug 2012 19:06:43 +0000 (12:06 -0700)]
ARM: SPL: Clean up spl.c / spl_nand.c slightly
- Remove includes we don't need
- Switch some printf statements to puts
- Convert some printf statements to debug, introduce new puts statements
- In most cases saying just "No mkimage signature, assuming
u-boot.bin" or similar is sufficient. This also means the non-DEBUG
case doesn't need printf, in the core of SPL.
- The other case here is that PLAIN_VERSION provided what we wanted
already, so just use it.
Tom Rini [Tue, 14 Aug 2012 17:25:15 +0000 (10:25 -0700)]
ARM: SPL: Make spl_mmc.c more generic
Move the default omap/related-centric board_mmc_init to
arch/arm/cpu/armv7/omap-common/boot-common.c and move the type defines
to <asm/spl.h>. Also use mmc->read_bl_len rather than MMCSD_SECTOR_SIZE
Tom Rini [Mon, 13 Aug 2012 21:13:07 +0000 (14:13 -0700)]
ARM: SPL: Only call mem_malloc_init if configured
We can only attempt to setup a malloc pool if
CONFIG_SYS_SPL_MALLOC_START is defined, and not all boards require it.
Make the call depend on the define.
Only omap4/5 currently have a meaningful set of display text and overo
had been adding a function to display nothing. Change how this works to
be opt-in and only turned on for omap4/5 now.
Tom Rini [Mon, 13 Aug 2012 19:18:34 +0000 (12:18 -0700)]
Makefile: Move SPL files to clobber, remove from clean
The 'clean' target has been removing all of spl but not u-boot itself.
For consistency and ease of testing, only remove SPL binaries / maps in
the clobber target, just like for full U-Boot
FAT: Make it possible to read from any file position
When storage devices contain files larger than the embedded RAM, it is
useful to be able to read these files by chunks, e.g. for a software
update to the embedded NAND Flash from an external storage device (USB
stick, SD card, etc.).
Hence, this patch makes it possible by adding a new FAT API to read
files from a given position. This patch also adds this feature to the
fatload command.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Wolfgang Denk <wd@denx.de> Signed-off-by: Tom Rini <trini@ti.com>
Otavio Salvador [Sat, 18 Aug 2012 07:46:04 +0000 (07:46 +0000)]
patman: Use reverse order for changelog
Specially when many revisions are need for a patchset, the most
interesting information is about the last set of changes so we output
the changelog in reverse order to easy identification of most recent
change set.
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Acked-by: Simon Glass <sjg@chromium.org>
malloc: remove extern declarations of malloc_bin_reloc() in board.c files
Declare malloc_bin_reloc() in malloc.h and remove all extern declarations
in various board.c files to get rid of one checkpatch.pl warning.
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com> Cc: Wolfgang Denk <wd@denx.de> Cc: Andreas Bießmann <andreas.devel@gmail.com> Cc: Jason Jin <Jason.jin@freescale.com> Cc: Macpaul Lin <macpaul@andestech.com> Cc: Daniel Hellstrom <daniel@gaisler.com> Acked-by: Andreas Bießmann <andreas.devel@gmail.com>
Michal Simek [Thu, 13 Sep 2012 20:23:34 +0000 (20:23 +0000)]
net: Add driver for Zynq Gem IP
Device driver for Zynq Gem IP.
Signed-off-by: Michal Simek <monstr@monstr.eu> CC: Joe Hershberger <joe.hershberger@gmail.com> CC: Marek Vasut <marex@denx.de> Acked-by: Marek Vasut <marex@denx.de>
Lucas Stach [Wed, 22 Aug 2012 11:05:01 +0000 (11:05 +0000)]
net: asix: add AX88772B support
Add AX88772B ID together with two fixes needed to make this work.
1. The packet length check has to be adjusted, as all ASIX chips
only use 11 bits to indicate the length. AX88772B uses the other
bits to indicate unrelated things, which cause the check to fail.
This fix is based on a fix for the Linux kernel by Marek Vasut.
Linux upstream commit: bca0beb9363f8487ac902931a50eb00180a2d14a
2. AX88772B provides several bulk endpoints. Only the first
IN/OUT endpoints work in the default configuration. So stop
enumeration after we found them to avoid overwriting the
endpoint config with a non-working one.
Signed-off-by: Lucas Stach <dev@lynxeye.de> Reviewed-by: Marek Vasut <marex@denx.de> Acked-by: Marek Vasut <marex@denx.de> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Lucas Stach [Wed, 22 Aug 2012 11:05:00 +0000 (11:05 +0000)]
net: asix: add read_mac function
Initial device MAC should be read while getting info about the
device, so it's wrong to only read it in asix_init().
Add a dedicated function to read the initial MAC, which is also
able to handle devices that have their initial MAC stored in
EEPROM. Call this function inasix_eth_get_info().
Signed-off-by: Lucas Stach <dev@lynxeye.de> Reviewed-by: Marek Vasut <marex@denx.de> Acked-by: Marek Vasut <marex@denx.de> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Lucas Stach [Wed, 22 Aug 2012 11:04:57 +0000 (11:04 +0000)]
net: introduce transparent driver private in ueth_data
Avoid clutter in ueth_data. Individual drivers should not mess
with structures belonging to the core like this.
Signed-off-by: Lucas Stach <dev@lynxeye.de> Reviewed-by: Marek Vasut <marex@denx.de> Acked-by: Marek Vasut <marex@denx.de> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Stephen Warren [Fri, 21 Sep 2012 09:51:01 +0000 (09:51 +0000)]
cmd_part: add partition-related command
This implements the following:
part uuid mmc 0:1
-> print partition UUID
part uuid mmc 0:1 uuid
-> set environment variable to partition UUID
part list mmc 0
-> list the partitions on the specified device
"part uuid" can be useful when writing a bootcmd which searches all
known devices for something bootable, and then wants the kernel to
use the same partition as the root device, e.g.:
part uuid ${devtype} ${devnum}:${rootpart} uuid
setenv bootargs root=PARTUUID=${uuid} ...
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Stephen Warren [Fri, 21 Sep 2012 09:51:00 +0000 (09:51 +0000)]
disk: part_msdos: parse and store partition UUID
The MSDOS/MBR partition table includes a 32-bit unique ID, often referred
to as the NT disk signature. When combined with a partition number within
the table, this can form a unique ID similar in concept to EFI/GPT's
partition UUID.
This patch generates UUIDs in the format 0002dd75-01, which matches the
format expected by the Linux kernel.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Stephen Warren [Fri, 21 Sep 2012 09:50:59 +0000 (09:50 +0000)]
disk: part_efi: parse and store partition UUID
Each EFI partition table entry contains a UUID. Extend U-Boot's struct
disk_partition to be able to store this information, and modify
get_partition_info_efi() to fill it in.
The implementation of uuid_string() was derived from the Linux kernel,
tag v3.6-rc4 file lib/vsprintf.c function uuid_string().
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Stephen Warren [Fri, 21 Sep 2012 09:50:58 +0000 (09:50 +0000)]
disk: part_efi: range-check partition number
Enhance get_partition_info_efi() to range-check the partition number.
This prevents invalid partitions being accessed, and prevents access
beyond the end of the gpt_pte[] array.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Stephen Warren [Fri, 21 Sep 2012 09:50:57 +0000 (09:50 +0000)]
disk: get_device_and_partition() "auto" partition and cleanup
Rework get_device_and_partition() to:
a) Implement a new partition ID of "auto", which requests that U-Boot
search for the first "bootable" partition, and fall back to the first
valid partition if none is found. This way, users don't need to
specify an explicit partition in their commands.
b) Make use of get_device().
c) Add parameter to indicate whether returning a whole device is
acceptable, or whether a partition is mandatory.
d) Make error-checking of the user's device-/partition-specification
more complete. In particular, if strtoul() doesn't convert all
characters, it's an error rather than just ignored.
The resultant device/partition returned by the function will be as
follows, based on whether the disk has a partition table (ptable) or not,
and whether the calling command allows the whole device to be returned
or not.
(D and P are integers, P >= 1)
D
D:
No ptable:
!allow_whole_dev: error
allow_whole_dev: device D
ptable:
device D partition 1
D:0
!allow_whole_dev: error
allow_whole_dev: device D
D:P
No ptable: error
ptable: device D partition P
D:auto
No ptable:
!allow_whole_dev: error
allow_whole_dev: device D
ptable:
first partition in device D with bootable flag set.
If none, first valid paratition in device D.
Note: In order to review this patch, it's probably easiest to simply
look at the file contents post-application, rather than reading the
patch itself.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
[swarren: Rob implemented scanning for bootable partitions. I fixed a
couple of issues there, switched the syntax to ":auto", added the
error-checking rework, and ":0" syntax for the whole device] Signed-off-by: Stephen Warren <swarren@nvidia.com>
Stephen Warren [Fri, 21 Sep 2012 09:50:56 +0000 (09:50 +0000)]
disk: introduce get_device()
This patch introduces function get_device(). This looks up a
block_dev_desc_t from an interface name (e.g. mmc) and device number
(e.g. 0). This function is essentially the non-partition-specific
prefix of get_device_and_partition().
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Rob Herring [Thu, 23 Aug 2012 11:31:50 +0000 (11:31 +0000)]
cmd_reiser: use common get_device_and_partition function
Convert reiserload and reiserls to use common device and partition parsing
function. With the common function "dev:part" can come from the
environment and a '-' can be used in that case.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Rob Herring [Thu, 23 Aug 2012 11:31:49 +0000 (11:31 +0000)]
cmd_zfs: use common get_device_and_partition function
Convert zfsload and zfsls to use common device and partition parsing
function. With the common function "dev:part" can come from the
environment and a '-' can be used in that case.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Rob Herring [Thu, 23 Aug 2012 11:31:47 +0000 (11:31 +0000)]
cmd_fat: use common get_device_and_partition function
Convert fatload, fatls, and fatinfo to use common device and partition
parsing function. With the common function "dev:part" can come from the
environment and a '-' can be used in that case.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Rob Herring [Thu, 23 Aug 2012 11:31:46 +0000 (11:31 +0000)]
cmd_extX: use common get_device_and_partition function
Convert ext2/4 load, ls, and write functions to use common device and
partition parsing function. With the common function "dev:part" can come
from the environment and a '-' can be used in that case.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Rob Herring [Fri, 21 Sep 2012 04:08:17 +0000 (04:08 +0000)]
disk/part: introduce get_device_and_partition
All block device related commands (scsiboot, fatload, ext2ls, etc.) have
simliar duplicated device and partition parsing and selection code. This
adds a common function to replace various implementations.
The new function has an enhancement over current versions. If no device
or partition is specified on the command line, the bootdevice env variable
will be used (scsiboot does this).
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
projects / u-boot / log