From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- arch/mips/loongson64/time.c | 47 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 arch/mips/loongson64/time.c (limited to 'arch/mips/loongson64/time.c') diff --git a/arch/mips/loongson64/time.c b/arch/mips/loongson64/time.c new file mode 100644 index 000000000..f6d2c1e30 --- /dev/null +++ b/arch/mips/loongson64/time.c @@ -0,0 +1,47 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology + * Author: Fuxin Zhang, zhangfx@lemote.com + * + * Copyright (C) 2009 Lemote Inc. + * Author: Wu Zhangjin, wuzhangjin@gmail.com + */ + +#include +#include + +#include +#include +#include + +void __init plat_time_init(void) +{ + struct clk *clk; + struct device_node *np; + + if (loongson_sysconf.fw_interface == LOONGSON_DTB) { + of_clk_init(NULL); + + np = of_get_cpu_node(0, NULL); + if (!np) { + pr_err("Failed to get CPU node\n"); + return; + } + + clk = of_clk_get(np, 0); + if (IS_ERR(clk)) { + pr_err("Failed to get CPU clock: %ld\n", PTR_ERR(clk)); + return; + } + + cpu_clock_freq = clk_get_rate(clk); + clk_put(clk); + } + + /* setup mips r4k timer */ + mips_hpt_frequency = cpu_clock_freq / 2; + +#ifdef CONFIG_RS780_HPET + setup_hpet_timer(); +#endif +} -- cgit v1.2.3