tree e9f81dae2d026188ec7edc378dfe2219abf9c868
parent 9d8cc630d39bb6163f400ef4dbef25c9d890ab47
author Samuel Holland <samuel@sholland.org> 1603332736 -0500
committer Jagan Teki <jagan@amarulasolutions.com> 1603347223 +0530

sunxi: binman: Add support for including SCP firmware

Allwinner sun50i SoCs contain an OpenRISC 1000 CPU that functions as a
System Control Processor, or SCP. ARM Trusted Firmware (ATF)
communicates with the SCP over SCPI to implement the PSCI system
suspend, shutdown and reset functionality. Currently, SCP firmware is
optional; the system will boot and run without it, but system suspend
will be unavailable.

Since all communication with the SCP is mediated by ATF, the only thing
U-Boot needs to do is load the firmware into SRAM. The SCP firmware
occupies the last 16KiB of SRAM A2, immediately following ATF.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>