env exists allows scripts to query whether an environment variable
exists. Enable by default as it adds only a trivial amount of code and
can be useful in scripts.
Signed-off-by: NSjoerd Simons <sjoerd.simons@collabora.co.uk>
Reviewed-by: NHans de Goede <hdegoede@redhat.com>
Reviewed-by: NStephen Warren <swarren@nvidia.com>

Add an optional -bootable parameter to the part list commands to only
put the list of bootable partitions in the environment variable
Signed-off-by: NSjoerd Simons <sjoerd.simons@collabora.co.uk>
Reviewed-by: NStephen Warren <swarren@nvidia.com>

After v2015.01 we need to have DM enabled in order to use UART.  Also
fix a typo in the EEPROM config format.
Signed-off-by: NGilles Gameiro <gilles@gigadevices.com>
[trini: Reword commit message, re-save defconfigs with 'savedefconfig']
Signed-off-by: NTom Rini <trini@konsulko.com>

Apparently the firmware's board rev response includes both the board
revision and some other data even on the RPi1. In particular, the
"warranty bit" is bit 24. We need to mask that out when looking up the
board ID.
Signed-off-by: NStephen Warren <swarren@wwwdotorg.org>

Various files are needlessly rebuilt every time due to the version and
build time changing. As version.h is not actually needed, remove the
include.
Signed-off-by: NRob Herring <robh@kernel.org>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Tom Warren <twarren@nvidia.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Macpaul Lin <macpaul@andestech.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: York Sun <yorksun@freescale.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Philippe Reynes <tremyfr@yahoo.fr>
Cc: Eric Jarrige <eric.jarrige@armadeus.org>
Cc: "David Müller" <d.mueller@elsoft.ch>
Cc: Phil Edworthy <phil.edworthy@renesas.com>
Cc: Robert Baldyga <r.baldyga@samsung.com>
Cc: Torsten Koschorrek <koschorrek@synertronixx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Reviewed-by: NLinus Walleij <linus.walleij@linaro.org>
Reviewed-by: NŁukasz Majewski <l.majewski@samsung.com>

The callee (arch/arm/lib/cache-cp15.c) has a #ifdef
CONFIG_SYS_DCACHE_OFF conditional.  The same conditional in the
caller (arch/arm/mach-uniphier/cache_uniphier.c) is redundant.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

The L2 cache is used as a temporary SRAM on SPL.
Now the secondary CPUs store the necessary code for jumping to
Linux on their L1 I-caches.  So, the L2 cache can be disabled
much earlier, at the very entry of U-Boot proper (lowlevel_init).
This makes the boot sequence clearer.
Also, as the L1 cache has been disabled by the start.S,
enable_caches() does not need to do it again.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

Currently, the secondary CPU(s) are kicked three times:
Boot ROM ---(kick)--> SPL ---(kick)--> U-boot ---(kick)--> Linux.
It makes the boot sequence very complicated.

This commit merges the first and the second kicks, so the secondary
CPU(s) can directly jump from SPL to Linux.
arch/arm/mach-uniphier/smp.S is no longer necessary.

Linux boot test passed.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

To remove the ifdef conditional of CONFIG_SKIP_LOWLEVEL_INIT,
add late_lowlevel_init.S to U-Boot proper.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

There is no good reason to have the 0x1000 gap between
CONFIG_SYS_INIT_SP_ADDR and CONFIG_SYS_TEXT_BASE.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

The Boot ROM of UniPhier platform only loads 64KB image.  We should
always make sure that SPL memory footprint is less than that.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

Ifdef conditionals for CONFIG options are not Kconfig-friendly.
Instead, define CONFIG_SPL_STACK to prepare for Kconfig moves.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

Enable CONFIG_SPL_DM and CONFIG_SPL_SERIAL_SUPPORT, which provide
Driver Model UART support on SPL.

CONFIG_SYS_SPL_MALLOC_{START,SIZE} should be dropped because simple
malloc is preferred on SPL.  Dlmalloc requires some static variables
on .data section that is not available yet for NOR boot mode etc.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

Do not reset board on panic, which allows us to not link reset_cpu()
into SPL.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

The UniPhier platform is going to enable Driver Model and UART
support on SPL.  Move UART pin settings to early_pin_init(),
which is called from SPL.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

Since we do not have OF_CONTROL support for SPL, platform devices
are necessary to enable Driver Model on SPL.

To prepare for that, move platdevice.o to SPL and enable it by
CONFIG_SPL_DM.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

The two Makefiles arch/arm/mach-uniphier/{ph1-ld4,ph1-sld8}/Makefile
are completely the same.  We can improve the maintainability by
having one to include the other.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

Since commit a86ac954 (ARM: UniPhier: include <mach/*.h> instead
of <asm/arch/*.h>), UniPhier platform does not need the symbolic
link arch/arm/include/asm.  This option is not necessary either.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

This allows printing the error message when VBUS is detected, as it would with
AXP VBUS detect.
Signed-off-by: NPaul Kocialkowski <contact@paulk.fr>
Acked-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NHans de Goede <hdegoede@redhat.com>

This flag was missing and thus the board was totally being configured
wrong.
Signed-off-by: NTom Rini <trini@konsulko.com>

When access the programmable secure peripherals address space,
it needs set them to non-secured.
Signed-off-by: NBo Shen <voice.shen@atmel.com>

If the GBE bit is set, when do next time autonegotiation,
if the result is not 1000Mbps, it will fallback to 100Mbps
checking. So, we need to clear the GBE bit.
Signed-off-by: NBo Shen <voice.shen@atmel.com>

As the u-boot-spl.lds is used only for armv7 SoCs (includes
sama5d3 and sama5d4), so move it to armv7 directory.
Signed-off-by: NBo Shen <voice.shen@atmel.com>

As the u-boot-spl.lds is moved to <arch/arm/mach-at91> directory.
So, correct the path for sama5d4 related boards.
Signed-off-by: NBo Shen <voice.shen@atmel.com>

Enable the power for MMC/SD port.
Signed-off-by: NBo Shen <voice.shen@atmel.com>

HUSH parser will handle the variable easier. That will be helpful for
write a complicated U-Boot commands or varaibles.
Signed-off-by: NJosh Wu <josh.wu@atmel.com>
Acked-by: NBo Shen <voice.shen@atmel.com>

Add a mmc default config, which will save the environment in a FAT file
(uboot.env) of MMC.
Signed-off-by: NJosh Wu <josh.wu@atmel.com>

This patch enable the MCI support for at91sam9rlek board.
Signed-off-by: NJosh Wu <josh.wu@atmel.com>
[rebase on ToT]
Signed-off-by: NAndreas Bießmann <andreas.devel@googlemail.com>

Update the nand flash offset mapping, default nand bootcmand and
bootargs to align with linux4sam.org.
Signed-off-by: NJosh Wu <josh.wu@atmel.com>
Acked-by: NBo Shen <voice.shen@atmel.com>

The current implementation for baudrate calculation is incorrect.
This part from the formula:

"2 ^ (n + 1)" is not equivalent to (1 << n) but to (2 << n)!

This patch fixes this and moves this calculation to a function instead of using a macro.
This new function is taken from the Linux kernel.

This was detected and tested on the Marvell Armada A38x DB-88F6820-GP eval board.
Signed-off-by: NStefan Roese <sr@denx.de>
Cc: Prafulla Wadaskar <prafulla@marvell.com>
Cc: Luka Perkov <luka.perkov@sartura.hr>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Ian Campbell <ijc@hellion.org.uk>
Cc: Heiko Schocher <hs@denx.de>
Acked-by: NHans de Goede <hdegoede@redhat.com>

Change addresses to unsigned long to be compatible with 64-bit builds.
Signed-off-by: NRob Herring <robh@kernel.org>
Cc: Heiko Schocher <hs@denx.de>

Change addresses to unsigned long to be compatible with 64-bit builds.
Regardless of fixing warnings, the device is still only 32-bit capable.
Signed-off-by: NRob Herring <robh@kernel.org>
Cc: Pantelis Antoniou <panto@antoniou-consulting.com>

Change addresses to unsigned long to be compatible with 64-bit builds.
Regardless of fixing warnings, the device is still only 32-bit capable.
Signed-off-by: NRob Herring <robh@kernel.org>
Cc: Pantelis Antoniou <panto@antoniou-consulting.com>

SDHCI_HOST_CONTROL is a byte-sized register, so don't write to it
as if it were a long, as that would result in clobbering the three
registers following.
Signed-off-by: NMatt Reimer <mreimer@sdgsystems.com>