To facilitate changing lowlevel_init to become s_init, move the current
contents of s_init into board_init_f and add the rest of what
board_init_f does here.
In order to compile clean without CONFIG_SKIP_LOWLEVEL_INIT set, leave an
empty stub of s_init(). It can be removed when lowlevel_init becomes s_init.

Cc: Bo Shen <voice.shen@atmel.com>
Cc: Andreas Bießmann <andreas.devel@googlemail.com>
Tested-by: Matt Porter <mporter@konsulko.com> on sama5d3_xplained
Signed-off-by: NTom Rini <trini@ti.com>
[rebased on current master, leave s_init() as empty stub]
Signed-off-by: NAndreas Bießmann <andreas.devel@googlemail.com>

This commit moves source files as follows:

  arch/arm/cpu/arm920t/at91/*   -> arch/arm/mach-at91/arm920t/*
  arch/arm/cpu/arm926ejs/at91/* -> arch/arm/mach-at91/arm926ejs/*
  arch/arm/cpu/armv7/at91/*     -> arch/arm/mach-at91/armv7/*
  arch/arm/cpu/at91-common/*    -> arch/arm/mach-at91/*
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: NAndreas Bießmann <andreas.devel@googlemail.co>

The SAMA5D4 SoC on chip rc oscillator can not be disabled.
Signed-off-by: NBo Shen <voice.shen@atmel.com>

Some SoC need to redirect the saic to aic to make the interrupt to
work, here add a weak function to be replaced by real function.
Signed-off-by: NBo Shen <voice.shen@atmel.com>

Some SoC need to configure the bus matrix, add an weak function
to be replace by real function.
Signed-off-by: NBo Shen <voice.shen@atmel.com>

add support for using spl code on at91sam9260 and at91sam9g45
based boards.
Signed-off-by: NHeiko Schocher <hs@denx.de>
Reviewed-by: NBo Shen <voice.shen@atmel.com>
Reviewed-by: NAndreas Bießmann <andreas.devel@googlemail.com>
[adopt Bo's change in spl.c]
Signed-off-by: NAndreas Bießmann <andreas.devel@googlemail.com>

The clock source for master clock can be slow clock, main clock,
plla clock or upll clock. So, make the clock source selection
field in mckr can be configured.
Signed-off-by: NBo Shen <voice.shen@atmel.com>
Signed-off-by: NAndreas Bießmann <andreas.devel@googlemail.com>

We need to make sure the main clock ready field in MCFR is set
after switch to main crystal oscillator.
Signed-off-by: NBo Shen <voice.shen@atmel.com>
Signed-off-by: NAndreas Bießmann <andreas.devel@googlemail.com>

Rename some defines containing FAT in their name to be filesystem generic:
MMCSD_MODE_FAT => MMCSD_MODE_FS
CONFIG_SPL_FAT_LOAD_ARGS_NAME => CONFIG_SPL_FS_LOAD_ARGS_NAME
CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME => CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
CONFIG_SYS_MMC_SD_FAT_BOOT_PARTITION => CONFIG_SYS_MMC_SD_FS_BOOT_PARTITION
Signed-off-by: NGuillaume GARDET <guillaume.gardet@free.fr>
Cc: Tom Rini <trini@ti.com>

If without switch to main crystal oscillator, the sama5d3 SoC will
use internal on chip RC oscillator.
In order to get better accuracy, switch to main crystal oscillator.
Signed-off-by: NBo Shen <voice.shen@atmel.com>
Signed-off-by: NAndreas Bießmann <andreas.devel@googlemail.com>

Add NAND SPL boot support with hardware PMECC.
Signed-off-by: NBo Shen <voice.shen@atmel.com>
Signed-off-by: NAndreas Bießmann <andreas.devel@googlemail.com>

Add SPI SPL boot support for sama5d3xek board.
Signed-off-by: NBo Shen <voice.shen@atmel.com>
Signed-off-by: NAndreas Bießmann <andreas.devel@googlemail.com>

Enable Atmel sama5d3xek boart spl boot support, which can load u-boot
from SD card with FAT file system.
Signed-off-by: NBo Shen <voice.shen@atmel.com>
Signed-off-by: NAndreas Bießmann <andreas.devel@googlemail.com>