Microsoft specifies an ACPI Watchdog Action Table for its server offerings that abstracts away hardware-specifics of watchdog devices. This can be an alternative to implementing many different watchdog driver in barebox for x86 H/W, as the driver is implemented in the BIOS and barebox would only need to implement the H/W.
Unfortunately, I don't H/W handy that provides the WDAT table. I've implemented the ACPI bus nevertheless, so here's the patch. I haven't found anything else I'd like to do with ACPI, so I wrote a sample driver to test the API. Not sure if it should go into the tree, but I'd be in favor of adding it till there is a real user of the ACPI bus (besides devinfo). Cheers Ahmad Ahmad Fatoum (2): bus: efi: add basic ACPI bus infrastructure misc: add ACPI test driver drivers/bus/Kconfig | 8 ++ drivers/bus/Makefile | 1 + drivers/bus/acpi.c | 255 +++++++++++++++++++++++++++++++++++++++ drivers/misc/Kconfig | 6 + drivers/misc/Makefile | 1 + drivers/misc/acpi-test.c | 61 ++++++++++ include/acpi.h | 73 +++++++++++ 7 files changed, 405 insertions(+) create mode 100644 drivers/bus/acpi.c create mode 100644 drivers/misc/acpi-test.c create mode 100644 include/acpi.h -- 2.20.1 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox
