Introduction

This is the Wiki for the Renesas R-Car White Hawk board stack. It consists of:

Refer to the R-Car page for information about Renesas' R-Car SoC family.

Serial Console

Use a micro-USB cable to connect to "Debug Serial" (CN10) on the CPU board. Serial settings are 921600 8N1.

 * Kernel config: defconfig
 * Kernel image: arch/arm64/boot/Image
 * DTB: arch/arm64/boot/dts/renesas/r8a779g0-white-hawk.dtb

U-Boot boot command:

tftpboot 0x48080000 Image
tftpboot 0x48000000 r8a779g0-white-hawk.dtb
booti 0x48080000 - 0x48000000

Not yet supported.

The system can be suspended ("frozen") using:

echo freeze > /sys/power/state

Alternatively (since v4.10), you can configure the system to use Suspend-to-Idle by default:

echo s2idle > /sys/power/mem_sleep

After that, you can suspend the system using the standard:

echo mem > /sys/power/state

Suspend-to-Idle supports the following wake-up sources:

ethtool -s eth0 wol g # Enable wake on MagicPacket
ethtool -s eth0 wol d # Disable

Wake-up by sending a MagicPacket from another system using:

wakeonlan <mac-address> | <hostname> | <ip-address> # <hostname> or <ip-address> must be in /etc/ethers

Operation	Signal A	Pin A	Signal B	Pin B	Connector needed	Comments
Reset	PRESETn_18	CN1 pin 10	GND	CN1 pin 9	1.27mm female header	CN1 Coresight 20pin on CPU board
Wake-Up	GP8_12_V	CN4 pin 6	GND	CN4 pin 4	2-pin female Mini-PV	CN4 GPIO connector on BreakOut Board Needs arm64: dts: renesas: white-hawk: Enable GP8_12 for wake-up from renesas-drivers#topic/board-farm
ACC ON	EX_PWRON	JP3 pin 2	GND	JP3 pin 1	2-pin female Mini-PV	JP3 on BreakOut board