1 /* 2 * Copyright (C) 2016 Imagination Technologies 3 * Author: Paul Burton <paul.burton@mips.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/types.h> 16 17 #include <asm/irq.h> 18 #include <asm/mips-cps.h> 19 #include <asm/time.h> 20 21 int get_c0_fdc_int(void) 22 { 23 int mips_cpu_fdc_irq; 24 25 if (mips_gic_present()) 26 mips_cpu_fdc_irq = gic_get_c0_fdc_int(); 27 else if (cpu_has_veic) 28 panic("Unimplemented!"); 29 else if (cp0_fdc_irq >= 0) 30 mips_cpu_fdc_irq = MIPS_CPU_IRQ_BASE + cp0_fdc_irq; 31 else 32 mips_cpu_fdc_irq = -1; 33 34 return mips_cpu_fdc_irq; 35 } 36 37 int get_c0_perfcount_int(void) 38 { 39 int mips_cpu_perf_irq; 40 41 if (mips_gic_present()) 42 mips_cpu_perf_irq = gic_get_c0_perfcount_int(); 43 else if (cpu_has_veic) 44 panic("Unimplemented!"); 45 else if (cp0_perfcount_irq >= 0) 46 mips_cpu_perf_irq = MIPS_CPU_IRQ_BASE + cp0_perfcount_irq; 47 else 48 mips_cpu_perf_irq = -1; 49 50 return mips_cpu_perf_irq; 51 } 52 53 unsigned int get_c0_compare_int(void) 54 { 55 int mips_cpu_timer_irq; 56 57 if (mips_gic_present()) 58 mips_cpu_timer_irq = gic_get_c0_compare_int(); 59 else if (cpu_has_veic) 60 panic("Unimplemented!"); 61 else 62 mips_cpu_timer_irq = MIPS_CPU_IRQ_BASE + cp0_compare_irq; 63 64 return mips_cpu_timer_irq; 65 } 66