u-boot.git/configs/iot_devkit_defconfig, branch v2018.11

iot_dk: Link for eFlash

2018-10-12T12:14:41+00:00

That's what we'll have in production.
But note it won't work for loading via JTAG as
eFlash is not directly writable, one needs to use
prebootloader to flash uboot.bin from SD-card into eFlash.

Signed-off-by: Alexey Brodkin

iot_dk: Disable networking support

2018-10-12T12:14:40+00:00

There's no Ethernet controller on the board so no point in having
networking support. This also saves us 5.5 kB of precious memory.

| # bloat-o-meter u-boot.net u-boot.no_net_regex | tail -1
| Total: Before=127892, After=122334, chg -4.35%

Signed-off-by: Alexey Brodkin

iot_dk: Add localversion string

2018-10-12T12:14:40+00:00

Signed-off-by: Alexey Brodkin

arc: Add support for IoT development kit

2018-10-05T13:57:00+00:00

The DesignWare ARC IoT Development Kit is a versatile platform
that includes the necessary hardware and software to accelerate
software development and debugging of sensor fusion,
voice recognition and face detection designs.

More information is avaialble here [1] and here [2].

The board is based on real silicon with
ARC EM9D-based Data Fusion IP Subsystem.

It sports a rich set of I/O including
 * DW USB OTG
 * DW MobileStorage (used for micro SD-card)
 * GPIO
 * multiple serial interface including DW APB UART
 * ADC, PWM and eFlash, SRAM and SPI Flash memory
 * Real-Time Clock (RTC)
 * Bluetooth module with worldwide regulatory compliance
   (FCC, IC, CE, ETSI, TELEC)
 * On-board 9-axis sensor (gyro, accelerometer and compass)

Extensible with Arduino, Pmod, mikroBUS connectors and a 2x18
extension header.

One of the most interesting features for developers is built-in
Digilent USB JTAG probe so only micro-USB cable is needed!

[1] https://www.synopsys.com/dw/ipdir.php?ds=arc_iot_development_kit
[2] https://www.synopsys.com/dw/doc.php/ds/cc/iot_dev_kit.pdf

Signed-off-by: Alexey Brodkin