Hi Alex,
Am 05.06.2016 um 23:17 schrieb Alexander Graf:
If Linux finds an EFI implementation it always uses the EFI reset handler to reboot or power down the system.
Hm, I thought my powerdown issues on the Jetson TK1 were for lack of CONFIG_AS3277_RESET - sounds like it could be due to EFI instead?
Unfortunately we haven't implemented that one yet. In fact, while we prepared for RTS handling, we never actually implemented a single user.
This is going to change today. This simple patch set enables RTS reset support for the RPi systems, allowing you to reboot and shut down the rpi if booted via EFI.
It also lays the groundwork to show how to implement that functionality at all, so I expect more boards to follow.
Alexander Graf (2): efi_loader: Allow boards to implement get_time and reset_system ARM: bcm283x: Implement EFI RTS reset_system
arch/arm/mach-bcm283x/include/mach/wdog.h | 2 +- arch/arm/mach-bcm283x/reset.c | 59 +++++++++++++++-- cmd/bootefi.c | 4 ++ include/efi_loader.h | 18 ++++++ lib/efi_loader/efi_runtime.c | 101 ++++++++++++++++++++++++++---- 5 files changed, 166 insertions(+), 18 deletions(-)
This all looks very non-generic and would mean that every board will need to be patched individually, which is unrealistic to be tested by just the two of us.
Can't you patch the reset_cpu() declaration (common.h/sysreset.h) instead of all its implementations? We might still need to patch individual implementations but I don't see why any reset_cpu() implementation should be in a different section than others.
Regards, Andreas