Add support for MediaTek MT8518 SoC. This include the file
that will initialize the SoC after boot and its device tree.
Signed-off-by: Nmingming lee <mingming.lee@mediatek.com>

The pumpkin board is made by Gossamer Engineering and is using
a MediaTek SoC. The board currently comes in two available version:
MT8516 SoC and MT8167 SoC.
The board provides the following IOs: eMMC, NAND, SD card, USB type-A,
Ethernet, Wi-Fi, Bluetooth, Audio (jack out, 2 PDM port, 1 analog in),
serial over USB, and an expansion header.

Additionally there is a HDMI port, DSI port, and camera port only
on the MT8167 version of the board.

The board can be powered by battery and/or via a USB Type-C port and
is using a PMIC MT6392.

The eMMC and NAND are sharing pins and cannot be used together.

This commit is adding the basic boot support for the Pumpkin MT8516
board on the eMMC.
Signed-off-by: NFabien Parent <fparent@baylibre.com>

The watchdog of mediatek chips is enabled by bootrom before u-boot is
running. Previously we choose to enable the wdt driver only to disable the
watchdog hardware.

Now wdt service is enabled by default. The function arch_misc_init which is
only used to disable wdt is no longer needed.
Reviewed-by: NStefan Roese <sr@denx.de>
Reviewed-by: NRyder Lee <ryder.lee@mediatek.com>
Signed-off-by: NWeijie Gao <weijie.gao@mediatek.com>

Add support for MediaTek MT8516 SoC. This include the file
that will initialize the SoC after boot and its device tree.
Signed-off-by: NFabien Parent <fparent@baylibre.com>
Reviewed-by: NTom Rini <trini@konsulko.com>

This adds a general board file based on MT7623 SoCs from MediaTek.

As this u-boot is loaded by MTK proprietary preloader, there is no
low level initializtion codes.
Signed-off-by: NWeijie Gao <weijie.gao@mediatek.com>
Signed-off-by: NRyder Lee <ryder.lee@mediatek.com>
Tested-by: NMatthias Brugger <matthias.bgg@gmail.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>

This adds a general board file based on MT7629 SoCs from MediaTek.

Apart from the generic parts (cpu) we add some low level init codes
and initialize the early clocks.
Signed-off-by: NRyder Lee <ryder.lee@mediatek.com>
Signed-off-by: NWeijie Gao <weijie.gao@mediatek.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>