Which bootmode is selected has no longer to be chosen by Kconfig. The
boards can decide themselves which bootmode they want to support. This
makes it unnecesary to ask the user which bootmode shall be supported,
so the "Select boot mode" becomes invisible and both support will be
compiled in as needed by the boards. NAND_IMX_BOOT goes away and the
already existing ARCH_IMX_EXTERNAL_BOOT_NAND can now be used for the
boards to depend on external nand boot.

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

To avoid the code duplication between the static inline C
function and the assembly macro.

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

reset is confusing with the cpu reset and impossible to grep

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

Most i.MX boards can use the imx*_barebox_entry functions. The remaining
(i.MX21, i.MX6) use hardcoded base addresses.

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

Several i.MX boards setup a temporary stack in their lowlevel code.
Instead of using STACK_BASE use a stack in internal SRAM to get rid
of the STACK_BASE compile time dependency.

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

Use helper function for external NAND boot to get some positive
diffstat.

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

- remove now unused __REG definitions
- include individual SoC register files instead of imx-regs.h
- move IMX_GPIO_NR to generic.h
- finally remove imx-regs.h

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

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

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

Conflicts:
	arch/arm/cpu/start-reset.c
	arch/arm/include/asm/barebox-arm.h
	arch/arm/mach-omap/Kconfig
	arch/arm/mach-omap/omap3_core.S

On some SoCs (for example AM35xx), the ROM bootloader passes useful
information in r0 when jumping to barebox.

To avoid overwriting this in the generic reset code, we introduce
common_reset as a C function and as an assembler macro. This is then
called form the reset entry point (either in common or in board code).

This patch is based on code by Sascha Hauer <s.hauer@pengutronix.de>.

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

The FSF address has changed in the past. Instead of updating it
each time the address changes, just drop it completely treewide.

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

With compressed image support TEXT_BASE will become the base
address of the uncompressed image. What the boards want instead
is the base address of the decompressor code or, if not compressed,
the base address of the uncompressed image. Use _text which is
the correct one for both cases.

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

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

this will allow each arch to handle the boards more simply and depending on
there need

the env var BOARD will refer to the current board dirent

for sandbox as we have only one board the board dirent is arch/sandbox/board

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