At present U-Boot sort-of supports the standard way of reading GPIOs from
device tree nodes, but the support is incomplete, a bit clunky and only
works for GPIO bindings where #gpio-cells is 2.

Add new functions to request GPIOs, taking full account of the device
tree binding. These permit requesting a GPIO with a simple call like:

   gpio_request_by_name(dev, "cd-gpios", 0, &desc, GPIOD_IS_IN);

This will request the GPIO, looking at the device's node which might be
this, for example:

   cd-gpios = <&gpio TEGRA_GPIO(B, 3) GPIO_ACTIVE_LOW>;

The GPIO will be set to input mode in this case and polarity will be
honoured by the GPIO calls.

It is also possible to request and free a list of GPIOs.
Signed-off-by: NSimon Glass <sjg@chromium.org>

Only the GPIO driver knows about the full GPIO device tree binding used by
a device. Add a method to allow the driver to provide this information to the
uclass, including the GPIO offset within the device and flags such as the
polarity.
Signed-off-by: NSimon Glass <sjg@chromium.org>

So far driver model's GPIO uclass just implements the existing GPIO API.
This has some limitations:

- it requires manual device tree munging to support GPIOs in device tree
    (fdtdec_get_gpio() and friends)
- it does not understand polarity
- it is somewhat slower since we must scan for the GPIO device each time
- Global GPIO numbering can change if other GPIO drivers are probed
- it requires extra steps to set the GPIO direction and value

The new functions have a dm_ prefix where necessary to avoid name conflicts
but we can remove that when it is no-longer needed. The new struct gpio_desc
holds all required information about the GPIO. For now this is intended to
be stored by the client requesting the GPIO, but in future it might be
brought into the uclass in some way.

With these changes the old GPIO API still works, and uses the driver model
API underneath.
Signed-off-by: NSimon Glass <sjg@chromium.org>

For GPIOs and other functions we want to look up a phandle and then decode
a list of arguments for that phandle. Each phandle can have a different
number of arguments, specified by a property in the target node. This is
the "#gpio-cells" property for GPIOs.

Add a function to provide this feature, taken modified from Linux 3.18.
Signed-off-by: NSimon Glass <sjg@chromium.org>

At present the tegra GPIO driver does not fully support the existing device
tree binding, but add the binding file to cover the existing partial support.
Signed-off-by: NSimon Glass <sjg@chromium.org>

At present the exynos GPIO driver does not fully support the existing device
tree binding, but add the binding file to cover the existing partial support.
Signed-off-by: NSimon Glass <sjg@chromium.org>

Add the binding file that we are about to support.
Signed-off-by: NSimon Glass <sjg@chromium.org>

The common/board_r.c has show_model_r() to display the model name
if the DTB has a "model" property.  It sounds useful to have a similar
function in common/board_f.c too because most of the boards show
their board name before relocation.

Instead of implementing the same function in both common/board_f.c
and common/board_r.c, let's split it up into common/show_board_info.c.
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: NSimon Glass <sjg@chromium.org>

To store 10bit chip address, the variable type should not be uchar,
but uint.
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Heiko Schocher <hs@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Acked-by: NSimon Glass <sjg@chromium.org>
Acked-by: Heiko Schocher<hs@denx.de>

Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: NSimon Glass <sjg@chromium.org>

Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: NSimon Glass <sjg@chromium.org>

This commit adds on-chip I2C driver used on newer SoCs of Panasonic
UniPhier platform.
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>
Acked-by: NSimon Glass <sjg@chromium.org>
Acked-by: NHeiko Schocher <hs@denx.de>

This commit adds on-chip I2C driver used on some old Panasonic
UniPhier SoCs.
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>
Acked-by: NSimon Glass <sjg@chromium.org>
Acked-by: NHeiko Schocher <hs@denx.de>

Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>
Acked-by: NSimon Glass <sjg@chromium.org>
Acked-by: NHeiko Schocher <hs@denx.de>

This commit 904672ee (lcd: refactor lcd console stuff into its
own file), which cause lcd console address is not initialized.

This patch initialize the lcd console use the default value,
will be update when splash screen is enabled.
Signed-off-by: NBo Shen <voice.shen@atmel.com>

When build for Atmel related boards which support SPL,
it will generate boot.bin, also clean when it when do
"make clean" operation.
Signed-off-by: NBo Shen <voice.shen@atmel.com>
Acked-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>

Microblaze currently doesn't use printf in SPL. So this one line was the only
reference to it and resulted in the printf functionality to be pulled in.
Exceeding the 4k size limit. Lets change the printf back to puts so that
Microblaze is fixed again. The only drawback is that the detected boot-device
number will not be printed. But this message alone should be helpful enough
to get an idea where the boot process is broken.
Signed-off-by: NStefan Roese <sr@denx.de>
Cc: Tom Rini <trini@ti.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Acked-by: NMichal Simek <michal.simek@xilinx.com>

This information help with debugging issues with uart.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

This change enables to change baudrate on command line.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

updated the zynq config to support the lthor
download protocol.
This lthor functionality helps us to load linux
images on to DDR/MMC and can boot linux using bootm.
In order to load images the user should run lthor
command run "thor_ram" from u-boot prompt and
then send the images from host using lthor utility.

Define g_dnl_bind_fixup for zynq so that correct vendor
and product ids assigned incase of DFU and lthor.
Signed-off-by: NSiva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Enable DFU functionality in zynq.
This DFU functionality helps us to load linux
images on to DDR and can boot linux using bootm.
In order to load images the user should run dfu
command "dfu 0 ram 0" from u-boot prompt and then
send the images from host.

The malloc size has been increased to match the DFU
buffer requirements.
Signed-off-by: NSiva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Dont send always emio value as zero for zynq_gem_initialize
send it based on config.
Signed-off-by: NSiva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

No functional chagnes.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Based on:
"am335x_evm: Enable CMD_EXT4 and CMD_FS_GENERIC, add bootpart to env"
(sha1: 73a27a84)

Fix filesystem specific commands for loading.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Show board information in bootlog and enable it by default.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Add missing addresses to the list.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Use full boot mode list in SPL.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Set only the 0-3 bits of the FPGA_RST_CTRL register
as other bits should not be set to 1.
Signed-off-by: NSiva Durga Prasad Paladugu <sivadur@xilinx.com>
Reviewed-by: NPeter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: NNathan Rossi <nathan.rossi@xilinx.com>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Setup half of memory from ram_size for ECC case.
All the time the same board can be configured
with or without ECC. Based on ECC case detection
use half of memory with the same configuration.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Trivial patch.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Added the lowlevel_init to enable the Neon instructions.

Initially the u-boot was causing undefined instruction
exception if loaded through tcl, and working fine if loaded
through FSBL. The exception was causing in convertion formula
of given time to ticks. It was because, the Neon instructions
were disabled and hence causing the undefined exception. In
FSBL case, the FSBL was enabling the Neon instructions. Hence,
added the lowlevel_init to enable the Neon instructions.

Also enable neon instructions for non-xilinx toolchain.
Signed-off-by: NSiva Durga Prasad Paladugu <sivadur@xilinx.com>
Acked-by: NRadhey Shyam Pandey <radheys@xilinx.com>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Refresh for newer kernel.
Prepare ENV settings for sheevaplugs to be OpenWRT ready.

    +----------+
    | UBOOT    | >> 896 Kb (7x128)  = uboot
    +----------+
    | ENV      | >> 128 Kb          = uboot_env
    +----------+
    | ROOT(FS) | >> 511 Mb @ 1 Mb   = root -> rootfs (ubifs)
    +----------+

With (CC) TRUNK OpenWRT build (QUICK HOWTO) :

    <INTERRUPT>
    Marvell>> nand erase.part root
    Marvell>> ubi part root
    Marvell>> ubi remove rootfs
    Marvell>> ubi create rootfs
    Marvell>> usb reset
    Marvell>> fatload usb 2:1 0x800000 guruplug/openwrt/openwrt-kirkwood-guruplug-rootfs.ubifs
    Marvell>> ubi write 0x800000 rootfs ${filesize}
    Marvell>> reset

Changes in v1:
- ADD generic board define
- ADD FDT support
- ADD HUSH interpreter
- Define new NAND partition mapping
Signed-off-by: NGerald Kerma <dreagle@doukki.net>

Signed-off-by: NLuka Perkov <luka@openwrt.org>
Acked-by: NStefan Roese <sr@denx.de>
CC: Prafulla Wadaskar <prafulla@marvell.com>

Signed-off-by: NLuka Perkov <luka@openwrt.org>
Acked-by: NStefan Roese <sr@denx.de>
CC: Prafulla Wadaskar <prafulla@marvell.com>

Signed-off-by: NLuka Perkov <luka@openwrt.org>
Acked-by: NStefan Roese <sr@denx.de>
CC: Prafulla Wadaskar <prafulla@marvell.com>

Signed-off-by: NLuka Perkov <luka@openwrt.org>
Acked-by: NStefan Roese <sr@denx.de>
CC: Prafulla Wadaskar <prafulla@marvell.com>