PBL: console: Make independent of DEBUG_LL ...

With more stuff being done in PBL regular console support gets more and more
useful. This makes the PBL console independent of DEBUG_LL which is only
meant for early debugging but not regular output.
To use the regular PBL console a board must call pbl_set_putc() which stores
a pointer to the putc function to be used.

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

ARM: i.MX: xload: implement esdhc xload for i.MX6 ...

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

ARM: i.MX6: Add DDR setup code from U-Boot ...

Several i.MX6 boards like to do their SDRAM setup in code rather than
in DCD tables. Add the SDRAM setup code from U-Boot to make it easy
to adopt the SDRAM setup from the U-Boot port of these boards.

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

ARM: i.MX: Add SPI xload code ...

Add PBL xload code to load an image from SPI NOR flash. Currently implemented
for i.MX6.

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

spi: i.MX: move register defines to include/ ...

The register defines will be used by the SPI xload code, so move
them to a place where the xload code can include them.

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

images: i.MX: Create target for SRAM images ...

Some boards like to do their SDRAM setup in code rather than in hardcoded
DCD tables. For these boards the bootloader has to be loaded to the internal
SRAM which is often too small for a full featured barebox. This new SRAM
image type target allows to overcome this limitation. The image created
with the new imx-sram-img rule is a regular imx-image with the difference
that the load size only spans the pblx image and not the whole image including
the payload. The pbl image easily fits into SRAM. The strategy is that this
initial code initializes the SDRAM, loads the whole image to SDRAM and jumps
to it.

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

ARM: i.MX6: create cpu_is() functions for use in PBL ...

The current cpu_is_mx6x() functions need the imx6_cpu_type variable
which make them unsuitable for PBL. Add a set of cpu_mx6_is_mx6x()
functions which can be called from PBL aswell. Unlike the cpu_is_mx6x()
functions the cpu_mx6_is_mx6x() functions assume that they are called on
i.MX6 only.

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

ARM: i.MX: compile boot.c for pbl aswell ...

As boot.c now contains code for the pbl compile compile it there
awell. While at it move esdctl.c to obj-pbl-y.

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

memsize: Compile for PBL aswell ...

Detecting the memory size is a domain for PBL, so compile it for PBL
aswell.

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

ARM: i.MX6: add function to get bootsource in pbl ...

In the pbl the regular bootsource_get cannot be used. Add a function
which returns the bootsource directly with values from the hardware.

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

ARM: i.MX6: remove unnecessary includes ...

Most files including imx6-mmdc.h do not actually use anything from
it. Clean this up.

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

ARM: i.MX6: Add i.MX6 entry function ...

Add a i.MX6 specific entry function which automatically detects the SDRAM
size. The prototype has already been present, but it was never implemented.
Rename it to imx6q_ since the other variants need other functions.

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

scripts: imx-image: Make in-place capable ...

Read in the source image completely before starting to write the output
image. This makes it possible to pass the same file as input and output.

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

scripts: imx-image: Do not pad image ...

We have to pad the load size to the next 4k boundary, but only for the
HAB4 case we actually care what data is loaded in the rest of the image.
This lets the padding depend on the prepare_sign option.

Background for this patch is a new yet-to-be-introduced image loading
mechanism for i.MX. This new mechanism only loads the PBL portion of
the image to memory, and not the whole image anymore. This means that
the image in this case changes from:

i.MX header (with loadsize: whole image), PBL, payload, padding

to:

i.MX header (with loadsize: header + PBL + padding), PBL, padding, payload

With the padding between PBL and payload we are no longer able to find
the payload, so we cannot add the padding there.

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

ARM: imx6: do not include arm/imx6q.dtsi from barebox imx6q.dtsi ...

Instead, let each board dts file that needs it include <arm/imx6q.dtsi>
manually before "imx6q.dtsi". This way board dts files that include the
original board dts and include "imxq6.dtsi" on top of that without
disabling all peripherals.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Build with -fno-delete-null-pointer-checks ...

This becomes important with gcc-4.9. Without this gcc assumes
that accessing NULL pointers traps and everything that happens
behind the access is not executed. This recently happened with
i.MX53 which has:

static int imx53_silicon_revision(void)
{
	void __iomem *rom = MX53_IROM_BASE_ADDR;

	rev = readl(rom + SI_REV);
	...
}

This resulted in object code in which the last instruction is
the readl, the reset of the function is missing because gcc assumes this
is never executed.

Disable this optimization with -fno-delete-null-pointer-checks since
in barebox NULL pointers can indeed be valid.

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

digest: digest doesn't return an error if the signature length is incorrect ...

fix: digest return no error even if the digest length is wrong
fix: documentation error (-v -> -s / -V -> -S)

Signed-off-by: Philippe Leduc <ledphilippe@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/blspec'

Merge branch 'for-next/state'

Merge branch 'for-next/pwm'

Merge branch 'for-next/omap' ...

Conflicts:
	arch/arm/boards/beagle/board.c

Merge branch 'for-next/net'

Merge branch 'for-next/mxs'

Merge branch 'for-next/mtd' ...

Conflicts:
	drivers/mtd/core.c

Merge branch 'for-next/misc'

Merge branch 'for-next/imx-bbu-nand-fcb' ...

Conflicts:
	common/Kconfig

Merge branch 'for-next/dts'

Merge branch 'for-next/doc'

Merge branch 'for-next/cfi-flash'

Merge branch 'for-next/blspec'