From aa5f821ee3313b869784eec25fab5da265225738 Mon Sep 17 00:00:00 2001 From: Xiang Wang Date: Mon, 27 Aug 2018 13:32:32 +0800 Subject: soc/sifive/fu540: add CLINT support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Change-Id: Ibc3a8644dcb83d5697d9d6e551c7682377285116 Signed-off-by: Xiang Wang Reviewed-on: https://review.coreboot.org/28355 Tested-by: build bot (Jenkins) Reviewed-by: Jonathan Neuschäfer --- src/soc/sifive/fu540/clint.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 src/soc/sifive/fu540/clint.c (limited to 'src/soc/sifive/fu540/clint.c') 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 +#include +#include +#include + +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); +} -- cgit v1.2.3