1 // SPDX-License-Identifier: GPL-2.0-only
3 * Joshua Henderson <joshua.henderson@microchip.com>
4 * Copyright (C) 2015 Microchip Technology Inc. All rights reserved.
6 #include <linux/clocksource.h>
7 #include <linux/init.h>
8 #include <linux/irqdomain.h>
10 #include <linux/of_clk.h>
11 #include <linux/of_irq.h>
15 #include "pic32mzda.h"
17 static const struct of_device_id pic32_infra_match[] = {
18 { .compatible = "microchip,pic32mzda-infra", },
22 #define DEFAULT_CORE_TIMER_INTERRUPT 0
24 static unsigned int pic32_xlate_core_timer_irq(void)
26 struct device_node *node;
29 node = of_find_matching_node(NULL, pic32_infra_match);
34 irq = irq_of_parse_and_map(node, 0);
45 return irq_create_mapping(NULL, DEFAULT_CORE_TIMER_INTERRUPT);
48 unsigned int get_c0_compare_int(void)
50 return pic32_xlate_core_timer_irq();
53 void __init plat_time_init(void)
55 unsigned long rate = pic32_get_pbclk(7);
59 pr_info("CPU Clock: %ldMHz\n", rate / 1000000);
60 mips_hpt_frequency = rate / 2;