diff options
Diffstat (limited to 'src/mainboard/emulation/qemu-riscv/clint.c')
-rw-r--r-- | src/mainboard/emulation/qemu-riscv/clint.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/mainboard/emulation/qemu-riscv/clint.c b/src/mainboard/emulation/qemu-riscv/clint.c new file mode 100644 index 0000000000..367d48d4ae --- /dev/null +++ b/src/mainboard/emulation/qemu-riscv/clint.c @@ -0,0 +1,25 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2018 HardenedLinux + * + * This program 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; version 2 of the License. + * + * This program 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. + */ + +#include <mcall.h> +#include <mainboard/addressmap.h> + +/* This function is used to initialize HLS()->time/HLS()->timecmp */ +void mtime_init(void) +{ + long hart_id = read_csr(mhartid); + HLS()->time = (uint64_t *)(QEMU_VIRT_CLINT + 0xbff8); + HLS()->timecmp = (uint64_t *)(QEMU_VIRT_CLINT + 0x4000 + 8 * hart_id); +} |