diff options
author | Xiang Wang <wxjstz@126.com> | 2018-08-27 13:32:32 +0800 |
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committer | Patrick Georgi <pgeorgi@google.com> | 2018-09-10 15:03:37 +0000 |
commit | aa5f821ee3313b869784eec25fab5da265225738 (patch) | |
tree | 7105f1b5edaf7260711d5d6b4bc7fd126feef9c1 /src/soc/sifive/fu540/clint.c | |
parent | 2e38dbe5f1a9db76cdf529679faee63fcb6a9c34 (diff) |
soc/sifive/fu540: add CLINT support
Change-Id: Ibc3a8644dcb83d5697d9d6e551c7682377285116
Signed-off-by: Xiang Wang <wxjstz@126.com>
Reviewed-on: https://review.coreboot.org/28355
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Diffstat (limited to 'src/soc/sifive/fu540/clint.c')
-rw-r--r-- | src/soc/sifive/fu540/clint.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/soc/sifive/fu540/clint.c b/src/soc/sifive/fu540/clint.c new file mode 100644 index 0000000000..00aec1ab37 --- /dev/null +++ b/src/soc/sifive/fu540/clint.c @@ -0,0 +1,32 @@ +/* + * 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 <arch/io.h> +#include <soc/addressmap.h> +#include <soc/clint.h> + +void mtime_init(void) +{ + long hart_id = read_csr(mhartid); + HLS()->time = (uint64_t *)(FU540_CLINT + 0xbff8); + HLS()->timecmp = (uint64_t *)(FU540_CLINT + 0x4000 + 8 * hart_id); +} + +void set_msip(int hartid, int val) +{ + long hart_id = read_csr(mhartid); + write32((void *)(FU540_CLINT + 4 * hart_id), !!val); +} |