ARM: prevent compiler warnings from bootm.c

Without preceding declarations, "make C=1" generates
"Should it be static?" warnings for symbols
	do_bootm_linux,
	boot_prep_vxworks, and
	boot_jump_vxworks

Include of bootm.h also identified a signature mismatch
(const on argv[]).

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
Acked-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
ARM: i.MX: provide declaration for board_spi_cs_gpio

Provide a public declaration of the board_spi_cs_gpio()
callback for i.MX SPI chip selects to prevent the warning
"Should it be static?" when compiling with "make C=1".

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
ARM: i.MX video: declare displays and display_count publicly

Declare displays[] and display_count in imx-common/video.h to
prevent "Should it be static?" messages when compiling board
files with "make C=1".

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
ot1200: remove superfluous "string" tag

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
mx6qsabreauto: Add HDMI support

Let HDMI splash screen support work by default.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
mx6sabre_common: Add HDMI config to common code

HDMI config options can be placed into the common mx6sabre_common.h file to
avoid duplication.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
lcd: Fix build error with CONFIG_LCD_BMP_RLE8

Add a block to avoid a build error with the variable declaration.
Enable the option on sandbox to prevent an error being introduced in
future.

Signed-off-by: Simon Glass <sjg@chromium.org>
video: ipu: fix debug and comment

- fix debug pixel clk display and add unit
- fix some comments

Cc: Stefano Babic <sbabic@denx.de>
Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
video: ipu_disp: remove pixclk fixup

The ipu display insists on having a lower_margin smaller
then 2. If this is not the case it will attempt to force
it and adjust the pixclk accordingly. This multiplies pixclk
in Hz with the width and height, since this is typically
a * 10^7 * b * 10^2 * c * 10^2 this will overflow the
uint_32 and make things even worse. Since this is a
bootloader and the adjustment is neglectible, just force
it to two and warn about it.

Cc: Stefano Babic <sbabic@denx.de>
Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
ARM: i.MX6: include prototype for get_board_rev()

Include <asm/bootm.h> to see the prototype for get_board_rev()
and prevent warning "Should it be static?" with "make C=1".

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>