spl: Change PAD_TO to CONFIG_SPL_PAD_TO

This was already used by some SPL targets, and allows the pad amount to
be specified by board config headers rather than only in makefile
fragments.

Also supply a pad-to of zero if the variable is undefined.  It works
without this, but this avoids relying on undocumented behavior.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
powerpc/mpc83xx: add support for new SPL

This adds arch support for PPC mpc83xx to boot "minimal" (4K) SPLs
using the new infrastructure.

Existing nand_spl targets are updated to deal with the name change
from nand_init.c to spl_minimal.c (as in theory this isn't limited
to NAND anymore).

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
powerpc/mpc83xx: convert MPC8313ERDB to new-SPL

This converts MPC8313ERDB NAND boot to use the new SPL infrastructure.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
MIPS: bootm.c: use debug macro to print debug message

The '## Transferring control ...' message is printed
only if DEBUG is enabled. Get rid of the 'ifdef DEBUG'
statement and use the debug macro instead.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
MIPS: bootm.c: separate linux jump code

Move the actual jump code into a separate function.
This make the code reusable for bootm subcommands.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
MIPS: bootm.c: separate environment initialization

Move the environment initialization code into a
separate function. This make the code reusable
for bootm subcommands.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
MIPS: bootm.c: add support for 'prep' and 'go' subcommands

The bootm command supports subcommands since long time
however those subcommands are not yet usable on MIPS.

The patch is based on the ARM implementation, and it adds
support for the 'prep' and 'go' subcommands only.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
MIPS: qemu-mips: fix a typo in README

The 'Limitations & comments' section refers to the
'-m mips' switch which is not valid. The '-m' switch
can be used for setting the virtual RAM size:

    $qemu-system-mips --help | grep '^-m '
    -m megs         set virtual RAM size to megs MB [default=128]
    $

The correct switch for specifying the machine type is '-M'.
Fix the text to refer to that.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
Cc: Vlad Lungu <vlad.lungu@windriver.com>
MIPS: qemu-mips: add '-M mips' switch to the example usage command

Using the example command from the README file does
not work as expected. qemu shows a text similar to
the one below and it hangs.

    $ qemu-system-mips -L . -nographic
    Could not open option rom 'pxe-pcnet.rom': No such file or directory
    qemu-system-mips: pci_add_option_rom: failed to find romfile "vgabios-cirrus.bin"
    qemu: terminating on signal 15 from pid 19726

This happens because qemu emulates a Malta board by
default if the machine type is not defined explicitely
on the command line.

For a working test, the '-M mips' switch is required:

    $ qemu-system-mips -M mips -L . -nographic
    Could not open option rom 'vgabios.bin': No such file or directory

    U-Boot 2013.01-rc2-00132-g1e8e648-dirty (Jan 08 2013 - 09:06:42)

    Board: Qemu -M mips CPU: 24Kf proc_id=0x19300
    DRAM:  128 MiB
    ## Unknown flash on Bank 1 - Size = 0x00000000 = 0 MB
    Flash: 0 Bytes
    *** Warning - bad CRC, using default environment

    In:    serial
    Out:   serial
    Err:   serial
    Net:   NE2000
    Hit any key to stop autoboot:  0
    qemu-mips #

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
Cc: Vlad Lungu <vlad.lungu@windriver.com>
MIPS: qemu-mips: update and fix example usage in README

By now U-Boot supports Qemu MIPS for little and big endian
as well as 32 bit and 64 bit. Update and fix the example usage
in the README to reflect this.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
README.qemu-mips: move README file from board to doc directory

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
README.mips: update known issues and TODOs

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
video: tegra: Update line length to match resolution

Instead of storing the computed line length in a local variable, store
it in the global lcd_line_length variable to make sure the LCD subsystem
can properly draw content for the display resolution.

This probably wasn't noticed yet because the only board where LCD
support is currently enabled is Seaboard, which runs at a 1366x768
resolution. As it happens this is the maximum resolution supported and
also the default that is used to initialize the framebuffer before the
configuration from DT is available.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
tegra: Enable LCD on Medcom-Wide

The Medcom-Wide has a 15" LCD panel with a resolution of 1366x768
pixels. Add a corresponding panel description to the device tree and
enable LCD support in the configuration.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
tegra: Enable LCD on TEC

The TEC ships with a 7" LCD panel that provides a resolution of 800x480
pixels. Add a corresponding panel description to the device tree and
enable LCD support in the configuration.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
tegra: display: add board pinmux

Boards may require a different pinmux setup for DISPALY than the default one.
Add a way to call into board specific code to set this up.

Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
tegra: enable LCD on PAZ00

This adds LCD panel descriptions to the device tree of PAZ00 and
enables LCD support in the configuration.

Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
tegra: remove custom TEGRA_DEVICE_SETTINGS for board files

TEGRA_DEVICE_SETTINGS lives now in tegra-common-post.h.

This removes custom TEGRA_DEVICE_SETTINGS for all tegra boards providing
video output, except seaboard, which was fixed by Stephen already.

Cc: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Tegra30: Add arch-tegra30 include files

Common Tegra files are in arch-tegra, shared between T20 and T30.
Tegra30-specific headers are in arch-tegra30. Note that some of
these will be filled in as more T30 support is added (drivers,
WB/LP0 support, etc.). A couple of Tegra20 files were changed
to support common headers in arch-tegra, also.

Signed-off-by: Tom Warren <twarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tegra30: Add AVP (arm720t) files

This provides SPL support for T30 boards - AVP early init, plus
CPU (A9) init/jump to main U-Boot.

Some changes were made to Tegra20 cpu.c to move common routines
into tegra-common/cpu.c and reduce code duplication.

Signed-off-by: Tom Warren <twarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>