ARM: Fix start.S when used with SPL in arm1136

This patch modifies start.S for the arm1136 to make it
conform to start.S  in armv7 architecture, to make it
usable if the SPL framework is used.

Signed-off-by: Stefano Babic <sbabic@denx.de>
MX35: add LOW_LEVEL_SRAM_STACK to use SPL_FRAMEWORK

Signed-off-by: Stefano Babic <sbabic@denx.de>
MX35: Add soc_boot_mode and soc_boot_device to MX35

The functions are required to use the generic
SPL Framework.

Signed-off-by: Stefano Babic <sbabic@denx.de>
SPL: Added SPL target for mx35 SOC to SPL Makefile

Signed-off-by: Stefano Babic <sbabic@denx.de>
ARM: Add SPL target to arm1136

The patch adds SPL for the arm1136 architecture and
inserts SPL (the produced binary) to clobber target
in the main Makefile.

Signed-off-by: Stefano Babic <sbabic@denx.de>
MX35: add support for woodburn board

The woodburn board is based on the MX35 SOC.
Support for both external (NOR) and internal
(SD Card) boot mode are added. It uses the
generic SPL framework to implement the internal boot
mode.

The following peripherals are supported:
- Ethernet (FEC)
- SD Card
- NAND (512 MB)
- NOR Flash

In the internal boot mode, a simple imximage header
is generated to set the address in internal RAM
where the SOC must copy the SPL code. The initial setup
is then demanded to the SPL itself.

Signed-off-by: Stefano Babic <sbabic@denx.de>
mx25pdk: Include CONFIG_MX25

It is necessary to include CONFIG_MX25 as several i.mx drivers handle the SoC
differences based on the this config option.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
mx25pdk: Add esdhc support

mx25pdk has a SD/MMC slot connected to esdhc1.

Add support for it and allow the environment variables to be saved into SD/MMC.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
pmic_fsl: Introduce FSL_PMIC_I2C_LENGTH

Introduce FSL_PMIC_I2C_LENGTH to configure the number of bytes that are used to
communicate with the PMIC via I2C.

Instead of hardcoding the value, pass the number via a configurable option per
PMIC type.

This will be useful for adding support for PMIC MC34704 from Freescale, which
uses only one byte in its I2C protocol.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
mx25: Place common functions into sys_proto.h

imx-regs.h is meant to contain SoC register definitions.

Common SoC funtions should go to sys_proto.h instead.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
pmic: Add support for mc34704

Add the register layout for the MC34704 PMIC from Freescale.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
mx25pdk: Add Ethernet support

mx25pdk has a Ethernet port that is connected to its internal FEC controller.

In order to power up the Ethernet PHY (DP83640) it is necessary to communicate
with the MC34704 PMIC via I2C.

Make the FEC ethernet port functional

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
mx53loco: Allow booting a zImage kernel

Allow booting a zImage kernel.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
mx25pdk: Allow booting a zImage kernel

Allow booting a zImage kernel.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
mx51evk: Allow booting a zImage kernel

Allow booting a zImage kernel.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
mx35pdk: Allow booting a zImage kernel

Allow booting a zImage kernel.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
mx6qsabre_common: Allow booting a zImage kernel

Allow booting a zImage kernel.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
MX5: added CONFIG_PMIC_FSL_MC13892 to mx53evk

Recent patches adding FSL_PMIC_I2C_LENGTH require
that the PMIC model is defined.

Signed-off-by: Stefano Babic <sbabic@denx.de>
CC: Jason Liu <jason.hui@linaro.org>
microblaze: Fix compilation warning in ext2_find_next_zero_bit

ext2_find_next_zero_bit must be also static if __swab32 is also static.

Warning:
include/asm/bitops.h:369:22: warning: '__fswab32' is static but
used in inline function 'ext2_find_next_zero_bit'
which is not static [enabled by default]

Signed-off-by: Michal Simek <monstr@monstr.eu>
Acked-by: Stephan Linz <linz@li-pro.net>
microblaze: Fix byteorder for microblaze

Just remove ancient code.

Signed-off-by: Michal Simek <monstr@monstr.eu>
Acked-by: Stephan Linz <linz@li-pro.net>
Reviewed-by: Marek Vasut <marex@denx.de>