This patch has some parts connected together:
- Use _gd in bss section which is automatically cleared
  Location at SPL_MALLOC_END wasn't cleared at all
- Use MALLOC_F_LEN(early alloc) instead of FULL MALLOC
  (mem_malloc_init is not called at all)
- Simplify malloc and stack init.
  At the end of SPL addr is malloc area and below is stack
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Create space for dm_init where calloc is called
and malloc_base has to be initialized.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Compile code with -fPIC to get GOT. Do not build SPL
with fPIC because it increasing SPL size for nothing.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Simplify SPL NOR init.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

This option specifies the default Device Tree used for the run-time
configuration of U-Boot.
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Cc: Michal Simek <michal.simek@xilinx.com>

This commit moves:
  CONFIG_OF_CONTROL
  CONFIG_OF_SEPARATE
  CONFIG_OF_EMBED
  CONFIG_OF_HOSTFILE

Because these options are currently not supported for SPL,
the "Device Tree Control" menu does not appear in the SPL
configuration.

Note:
zynq-common.h should be adjusted so as not to change the
default value of CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME.
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: NSimon Glass <sjg@chromium.org>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Acked-by: NMichal Simek <michal.simek@xilinx.com>

Now CONFIG_SPL and CONFIG_TPL are defined in Kconfig.

Remove the redundant definition in config headers.
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>

CONFIG_${ARCH} is defined by Kconfig.
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>

We are about to switch to Kconfig in the next commit.
But there are something to get done beforehand.

In Kconfig, include/generated/autoconf.h defines boolean
CONFIG macros as 1.

CONFIG_SPL and CONFIG_TPL, if defined, must be set to 1.
Otherwise, when switching to Kconfig, the build log
would be sprinkled with warning messages like this:
  warning: "CONFIG_SPL" redefined [enabled by default]
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>

 - expand the condition with CONFIG_OF_CONTROL
Signed-off-by: NStephan Linz <linz@li-pro.net>
Acked-by: NSimon Glass <sjg@chromium.org>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Add support for U-BOOT SPL. NOR and RAM mode are supported.
There are 3 images in NOR flash. u-boot.img, dtb and kernel.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

It speeds up writing a lot.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Remove platform CONFIG_SYS_HZ definition for configs a-z*.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>

Aside from microblaze, all other SoCs/boards/vendors store their DT files
in board/$vendor/dts/$soc-$board.dts. Move microblaze-generic.dts to this
location for consistency.
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Acked-by: NSimon Glass <sjg@chromium.org>
Acked-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NWolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: NTom Rini <trini@ti.com>

Microblaze uses gpio which is connected to the system reset.
Currently gpio subsystem wasn't used for it.

Add gpio driver and change Microblaze reset logic to be done
via gpio subsystem.

There are various configurations which Microblaze can have
that's why gpio_alloc/gpio_alloc_dual(for dual channel)
function has been introduced and gpio can be allocated
dynamically.

Adding several gpios IP is also possible and supported.

For listing gpio configuration please use "gpio status" command

This patch also remove one compilation warning:
microblaze-generic.c: In function 'do_reset':
microblaze-generic.c:38:47: warning: operation on '*1073741824u'
 may be undefined [-Wsequence-point]
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Watchdog can be used on Microblaze, PPC and Zynq hw designs.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
Reviewed-by: NTom Rini <trini@ti.com>

Setup environment and enable netconsole.
Signed-off-by: NMichal Simek <monstr@monstr.eu>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
Reviewed-by: NTom Rini <trini@ti.com>

This code was targetting one specific Microblaze platform
configuration which is obsolete and fsl bus isn't used
in this way.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Flushing caches is necessary because of soft reset
which doesn't clear caches.
Signed-off-by: NMichal Simek <monstr@monstr.eu>
Reviewed-by: NMarek Vasut <marex@denx.de>

Fix CONFIG_SYS_HZ usage in board config.

Do not use hardcoded value. Use CONFIG_SYS_HZ instead.
Separate static configuration to single block.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Depending on XILINX_SPI_FLASH_BASEADDR enable SPI flash
and environment in SPI flash.

Expected values from xparameters.h are:
    - XILINX_SPI_FLASH_BASEADDR
    - XILINX_SPI_FLASH_MAX_FREQ
    - XILINX_SPI_FLASH_CS
Signed-off-by: NStephan Linz <linz@li-pro.net>
Acked-by: NMichal Simek <monstr@monstr.eu>

Clear and prepare for device-tree driven configuration.
Remove CONFIG_SYS_INTC_0 definition
Use dynamic allocation instead of static.
Signed-off-by: NMichal Simek <monstr@monstr.eu>
Acked-by: NSimon Glass <sjg@chromium.org>

    - enable OF control and embedded OF
    - set default device tree file name to 'microblaze'
    - add CPP to dtc proxy: board/xilinx/dts/microblaze.dts
    - add an empty but processable dts for microblaze-generic
Signed-off-by: NStephan Linz <linz@li-pro.net>

In the case of missing flash usage disaple (undef)
all the UBI support in the same way as for JFFS2.
Signed-off-by: NStephan Linz <linz@li-pro.net>

  - fix CONFIG_SYS_MALLOC_BASE from 0x11FB_F000 to 0x13EF_F000
  - add new size calculation for CONFIG_SYS_MONITOR_LEN
    and CONFIG_SYS_MALLOC_LEN derived from SIZE
  - change CONFIG_SYS_MONITOR_BASE and CONFIG_SYS_MALLOC_BASE
    calculation to a symbolic equation with the corresponding
    _LEN definitions
  - add a "CFI flash memory layout - Example" comment
Signed-off-by: NStephan Linz <linz@li-pro.net>

Increase malloc area for UBI to >= 512k -- foreseeing of UBIFS
set to 768k. To save memory in flash (CONFIG_SYS_MONITOR_LEN)
the UBIFS is disabled by default.
Signed-off-by: NStephan Linz <linz@li-pro.net>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Use XILINX_FLASH_START to set/unset FLASH and RAMENV.

Error:
board.c: In function 'board_init':
board.c:134: error: 'XILINX_FLASH_START' undeclared (first use in this function)
board.c:134: error: (Each undeclared identifier is reported only once
board.c:134: error: for each function it appears in.)
Signed-off-by: NStephan Linz <linz@li-pro.net>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

CONFIG_SYS_FLASH_PROTECTION is defined twice. The second one
is outside the flash configuration context and we can remove
it safely.
Signed-off-by: NStephan Linz <linz@li-pro.net>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Exactly one board has defined CONFIG_SYS_PROMPT_HUSH_PS2 to a value
different than "> " which is vision2.  I have Cc'd the maintainer here
as I strongly suspect this is a bug rather than intentional behavior.

Cc: Stefano Babic <sbabic@denx.de>
Signed-off-by: NTom Rini <trini@ti.com>
Acked-by: NStefano Babic <sbabic@denx.de>

U-Boot's multipple network supports enables to use
several ethernet drivers but microblaze-generic
platform config file select only one driver.
Reported-by: NMichal Simek <monstr@monstr.eu>
Signed-off-by: NStephan Linz <linz@li-pro.net>

Enable phylib and mii support for AXI EMAC
ethernet drivers on Microblaze systems.
Signed-off-by: NStephan Linz <linz@li-pro.net>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NStephan Linz <linz@li-pro.net>

As a result of the commit 68332608 the uart16550 driver
is broken for Microblaze big endian systems, because of
the missing 3 byte offset. Other than as described, not
all U-Boot BSP will treat properly the 3 byte offset.

This why prefer to mask out the 3 byte offset in general
and setup correct _REG_SIZE value depending on edianess.
Signed-off-by: NStephan Linz <linz@li-pro.net>
Tested-by: NMichal Simek <monstr@monstr.eu>

Initialize axi_ethernet driver.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Now that none of the core checks CONFIG_NET_MULTI, there's not much point
in boards defining it.  So scrub all references to it.
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

Enable FDT and FIT support.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

U-Boot BSP handle 0x3 offset for big endian systems.
Little endian Microblaze systems don't use any offset.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Undefined network functionality for systems without ethernet
and disable NFS support.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Patch "Replace CONFIG_SYS_GBL_DATA_SIZE by auto-generated value"
(sha1: 25ddd1fb)
introduce GENERATED_GBL_DATA_SIZE which is sizeof aligned gd_t
(currently 0x40).
Microblaze configs used 0x40(128) because this place also contained
board info structure which lies on the top of ram.

U-Boot is placed to the top of the ram (for example 0xd7ffffff)
and bd structure was moved out of ram.

This patch is fixing this scheme with GENERATED_BD_INFO_SIZE
which swap global data and board info structures.

For example:
Current: gd 0xd7ffffc0, bd 0xd8000000
Fixed:   gd 0xd7ffffc0, bd 0xd7ffff90
Signed-off-by: NMichal Simek <monstr@monstr.eu>