1 /* 2 * Copyright (C) 2016 Imagination Technologies 3 * Author: Paul Burton <paul.burton@imgtec.com> 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License as published by the 7 * Free Software Foundation; either version 2 of the License, or (at your 8 * option) any later version. 9 */ 10 11 #include <linux/clk.h> 12 #include <linux/clk-provider.h> 13 #include <linux/clocksource.h> 14 #include <linux/init.h> 15 #include <linux/irqchip/mips-gic.h> 16 #include <linux/types.h> 17 18 #include <asm/irq.h> 19 20 int get_c0_fdc_int(void) 21 { 22 int mips_cpu_fdc_irq; 23 24 if (cpu_has_veic) 25 panic("Unimplemented!"); 26 else if (gic_present) 27 mips_cpu_fdc_irq = gic_get_c0_fdc_int(); 28 else if (cp0_fdc_irq >= 0) 29 mips_cpu_fdc_irq = MIPS_CPU_IRQ_BASE + cp0_fdc_irq; 30 else 31 mips_cpu_fdc_irq = -1; 32 33 return mips_cpu_fdc_irq; 34 } 35 36 int get_c0_perfcount_int(void) 37 { 38 int mips_cpu_perf_irq; 39 40 if (cpu_has_veic) 41 panic("Unimplemented!"); 42 else if (gic_present) 43 mips_cpu_perf_irq = gic_get_c0_perfcount_int(); 44 else if (cp0_perfcount_irq >= 0) 45 mips_cpu_perf_irq = MIPS_CPU_IRQ_BASE + cp0_perfcount_irq; 46 else 47 mips_cpu_perf_irq = -1; 48 49 return mips_cpu_perf_irq; 50 } 51 52 unsigned int get_c0_compare_int(void) 53 { 54 int mips_cpu_timer_irq; 55 56 if (cpu_has_veic) 57 panic("Unimplemented!"); 58 else if (gic_present) 59 mips_cpu_timer_irq = gic_get_c0_compare_int(); 60 else 61 mips_cpu_timer_irq = MIPS_CPU_IRQ_BASE + cp0_compare_irq; 62 63 return mips_cpu_timer_irq; 64 } 65