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60 lines
1.2 KiB
60 lines
1.2 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* Joshua Henderson <[email protected]> |
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* Copyright (C) 2015 Microchip Technology Inc. All rights reserved. |
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*/ |
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#include <linux/clocksource.h> |
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#include <linux/init.h> |
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#include <linux/irqdomain.h> |
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#include <linux/of.h> |
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#include <linux/of_clk.h> |
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#include <linux/of_irq.h> |
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#include <asm/time.h> |
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#include "pic32mzda.h" |
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static const struct of_device_id pic32_infra_match[] = { |
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{ .compatible = "microchip,pic32mzda-infra", }, |
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{ }, |
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}; |
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#define DEFAULT_CORE_TIMER_INTERRUPT 0 |
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static unsigned int pic32_xlate_core_timer_irq(void) |
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{ |
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struct device_node *node; |
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unsigned int irq; |
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node = of_find_matching_node(NULL, pic32_infra_match); |
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if (WARN_ON(!node)) |
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goto default_map; |
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irq = irq_of_parse_and_map(node, 0); |
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if (!irq) |
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goto default_map; |
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return irq; |
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default_map: |
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return irq_create_mapping(NULL, DEFAULT_CORE_TIMER_INTERRUPT); |
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} |
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unsigned int get_c0_compare_int(void) |
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{ |
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return pic32_xlate_core_timer_irq(); |
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} |
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void __init plat_time_init(void) |
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{ |
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unsigned long rate = pic32_get_pbclk(7); |
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of_clk_init(NULL); |
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pr_info("CPU Clock: %ldMHz\n", rate / 1000000); |
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mips_hpt_frequency = rate / 2; |
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timer_probe(); |
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}
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