Difference between revisions of "R-Car/Boards/Salvator-XS"
(Add wakeonlan <hostname>) |
(Update DTB names for v5.6-rc1) |
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* Kernel config: defconfig | * Kernel config: defconfig | ||
* Kernel image: arch/arm64/boot/Image | * Kernel image: arch/arm64/boot/Image | ||
− | * DTB: arch/arm64/boot/dts/renesas/ | + | * DTB: arch/arm64/boot/dts/renesas/r8a77951-salvator-xs.dtb (for R-Car H3) |
− | * DTB: arch/arm64/boot/dts/renesas/ | + | * DTB: arch/arm64/boot/dts/renesas/r8a77960-salvator-xs.dtb (for R-Car M3-W) |
* DTB: arch/arm64/boot/dts/renesas/r8a77965-salvator-xs.dtb (for R-Car M3-N) | * DTB: arch/arm64/boot/dts/renesas/r8a77965-salvator-xs.dtb (for R-Car M3-N) | ||
Line 30: | Line 30: | ||
<pre> | <pre> | ||
tftpboot 0x48080000 Image | tftpboot 0x48080000 Image | ||
− | tftpboot 0x49f00000 | + | tftpboot 0x49f00000 r8a77951-salvator-xs.dtb (for R-Car H3) |
− | tftpboot 0x49f00000 | + | tftpboot 0x49f00000 r8a77960-salvator-xs.dtb (for R-Car M3-W) |
tftpboot 0x49f00000 r8a77965-salvator-xs.dtb (for R-Car M3-N) | tftpboot 0x49f00000 r8a77965-salvator-xs.dtb (for R-Car M3-N) | ||
booti 0x48080000 - 0x49f00000 | booti 0x48080000 - 0x49f00000 | ||
</pre> | </pre> | ||
+ | Kernel v5.5 and older used different DTB names: | ||
+ | * DTB: arch/arm64/boot/dts/renesas/r8a7795-salvator-xs.dtb (for R-Car H3) | ||
+ | * DTB: arch/arm64/boot/dts/renesas/r8a7796-salvator-xs.dtb (for R-Car M3-W) | ||
+ | * DTB: arch/arm64/boot/dts/renesas/r8a77965-salvator-xs.dtb (for R-Car M3-N) | ||
= Suspend-to-RAM = | = Suspend-to-RAM = |
Revision as of 12:10, 27 February 2020
Introduction
This is the Wiki for the Renesas Salvator-XS (Salvator-X 2nd version) board, which is available in different versions, depending on the actual SiP mounted:
- RTP0RC7795SIPB0012S (with R-Car H3 ES2.0),
- RTP0RC7796SIPB0012S (with R-Car M3-W),
- RTP0RC77965SIPB012S (with R-Car M3-N).
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 0". Serial settings are 115200 8N1.
Unfortunately the CP2102 USB-to-UART bridges on Salvator-XS boards have the same serial strings (0001 resp. 00002 for Debug Serial 0 resp. 1), complicating identifying consoles on multiple boards. If you have multiple boards connected to the same host and you want stable serial ports, there are two options:
- Refer to the ports using the symbolic links under /dev/serial/by-path/, instead of the /dev/ttyUSB* names,
- Program the ports' serial strings to your liking (e.g. salvator-xs-1884-debug0) using the tool at https://github.com/DiUS/cp210x-cfg, and refer to the ports using the symbolic links under /dev/serial/by-id/, instead of the /dev/ttyUSB* names.
Booting Linux
* Kernel config: defconfig * Kernel image: arch/arm64/boot/Image * DTB: arch/arm64/boot/dts/renesas/r8a77951-salvator-xs.dtb (for R-Car H3) * DTB: arch/arm64/boot/dts/renesas/r8a77960-salvator-xs.dtb (for R-Car M3-W) * DTB: arch/arm64/boot/dts/renesas/r8a77965-salvator-xs.dtb (for R-Car M3-N)
U-Boot boot command:
tftpboot 0x48080000 Image tftpboot 0x49f00000 r8a77951-salvator-xs.dtb (for R-Car H3) tftpboot 0x49f00000 r8a77960-salvator-xs.dtb (for R-Car M3-W) tftpboot 0x49f00000 r8a77965-salvator-xs.dtb (for R-Car M3-N) booti 0x48080000 - 0x49f00000
Kernel v5.5 and older used different DTB names:
* DTB: arch/arm64/boot/dts/renesas/r8a7795-salvator-xs.dtb (for R-Car H3) * DTB: arch/arm64/boot/dts/renesas/r8a7796-salvator-xs.dtb (for R-Car M3-W) * DTB: arch/arm64/boot/dts/renesas/r8a77965-salvator-xs.dtb (for R-Car M3-N)
Suspend-to-RAM
PSCI System Suspend
The system can be suspended by triggering a PSCI System Suspend:
echo mem > /sys/power/state
Caveats:
- Before you can use the above, you must configure the PMIC for DDR Backup Mode first, using the command below, followed by switching SW23 off:
echo on > /sys/bus/i2c/drivers/bd9571mwv/*/bd9571mwv-regulator*/backup_mode
- On kernels up to and including v4.18, the "backup_mode" sysfs file doesn't exist. Hence you must use i2cset instead, and repeat this operation after each wake-up:
i2cset -f -y 7 0x30 0x20 0x0F
- PSCI System Suspend supports wake-up by PMIC only. Switch SW23 on to resume the system.
Suspend-to-Idle
If you want to suspend the system, and wake up through other wake-up sources, you must use Suspend-to-Idle instead of PSCI System Suspend.
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
Wake-Up Sources
Suspend-to-Idle supports the following wake-up sources:
- gpio-keys: Not enabled in the upstream kernel due to sharing of GPIOs between switches and LEDs, but see Remote Control below.
- ravb (Ethernet): Configure using one of:
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
- sh-sci (Serial): Disabled by default
- usb: Disabled by default
Remote Control
Operation | Signal A | Pin A | Signal B | Pin B | Connector needed | Comments |
Reset | #MRB/SYSRSTn | EXIO-D pin 66 | GND | EXIO-D pin 58 | Samtec QTE-020 or -040 | |
Wake-Up | IRQ1n/GP2_01 | EXIO-D pin 50 | GND | EXIO-D pin 46 | Samtec QTE-020 or -040 | Needs arm64: dts: salvator-common: Enable GP2_1 for wake-up from renesas-drivers#topic/board-farm |
ACC OFF | #RSTB/EX_PWRONn | EXIO-D pin 68 | D5.0V | CN7 pin 4 | Samtec QTE-020 or -040, and 5¼ HDD power | Pull high via 10K resistor to power off (47K to D12.0V might be better, cfr. Ebisu, but is untested) |