diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def index 58438c48d..887450110 100644 --- a/grub-core/Makefile.core.def +++ b/grub-core/Makefile.core.def @@ -213,7 +213,7 @@ kernel = { arm_efi = kern/arm/efi/init.c; arm_efi = kern/arm/efi/misc.c; - arm64_efi = kern/arm/efi/init.c; + arm64_efi = kern/arm64/efi/init.c; i386_pc = kern/i386/pc/init.c; i386_pc = kern/i386/pc/mmap.c; diff --git a/grub-core/kern/arm64/efi/init.c b/grub-core/kern/arm64/efi/init.c new file mode 100644 index 000000000..6224999ec --- /dev/null +++ b/grub-core/kern/arm64/efi/init.c @@ -0,0 +1,60 @@ +/* init.c - initialize an arm-based EFI system */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2013 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see . + */ + +#include +#include +#include +#include +#include +#include +#include + +static grub_uint64_t timer_frequency_in_khz; + +static grub_uint64_t +grub_efi_get_time_ms (void) +{ + grub_uint64_t tmr; + asm volatile("mrs %0, cntvct_el0" : "=r" (tmr)); + + return tmr / timer_frequency_in_khz; +} + + +void +grub_machine_init (void) +{ + grub_uint64_t timer_frequency; + + grub_efi_init (); + + asm volatile("mrs %0, cntfrq_el0" : "=r" (timer_frequency)); + timer_frequency_in_khz = timer_frequency / 1000; + + grub_install_get_time_ms (grub_efi_get_time_ms); +} + +void +grub_machine_fini (int flags) +{ + if (!(flags & GRUB_LOADER_FLAG_NORETURN)) + return; + + grub_efi_fini (); +}