1*eed0eabdSPaul Burton /* 2*eed0eabdSPaul Burton * Copyright (C) 2016 Imagination Technologies 3*eed0eabdSPaul Burton * Author: Paul Burton <paul.burton@imgtec.com> 4*eed0eabdSPaul Burton * 5*eed0eabdSPaul Burton * This program is free software; you can redistribute it and/or modify it 6*eed0eabdSPaul Burton * under the terms of the GNU General Public License as published by the 7*eed0eabdSPaul Burton * Free Software Foundation; either version 2 of the License, or (at your 8*eed0eabdSPaul Burton * option) any later version. 9*eed0eabdSPaul Burton */ 10*eed0eabdSPaul Burton 11*eed0eabdSPaul Burton #include <linux/clk.h> 12*eed0eabdSPaul Burton #include <linux/clk-provider.h> 13*eed0eabdSPaul Burton #include <linux/clocksource.h> 14*eed0eabdSPaul Burton #include <linux/init.h> 15*eed0eabdSPaul Burton #include <linux/irqchip/mips-gic.h> 16*eed0eabdSPaul Burton #include <linux/types.h> 17*eed0eabdSPaul Burton 18*eed0eabdSPaul Burton #include <asm/irq.h> 19*eed0eabdSPaul Burton 20*eed0eabdSPaul Burton int get_c0_fdc_int(void) 21*eed0eabdSPaul Burton { 22*eed0eabdSPaul Burton int mips_cpu_fdc_irq; 23*eed0eabdSPaul Burton 24*eed0eabdSPaul Burton if (cpu_has_veic) 25*eed0eabdSPaul Burton panic("Unimplemented!"); 26*eed0eabdSPaul Burton else if (gic_present) 27*eed0eabdSPaul Burton mips_cpu_fdc_irq = gic_get_c0_fdc_int(); 28*eed0eabdSPaul Burton else if (cp0_fdc_irq >= 0) 29*eed0eabdSPaul Burton mips_cpu_fdc_irq = MIPS_CPU_IRQ_BASE + cp0_fdc_irq; 30*eed0eabdSPaul Burton else 31*eed0eabdSPaul Burton mips_cpu_fdc_irq = -1; 32*eed0eabdSPaul Burton 33*eed0eabdSPaul Burton return mips_cpu_fdc_irq; 34*eed0eabdSPaul Burton } 35*eed0eabdSPaul Burton 36*eed0eabdSPaul Burton int get_c0_perfcount_int(void) 37*eed0eabdSPaul Burton { 38*eed0eabdSPaul Burton int mips_cpu_perf_irq; 39*eed0eabdSPaul Burton 40*eed0eabdSPaul Burton if (cpu_has_veic) 41*eed0eabdSPaul Burton panic("Unimplemented!"); 42*eed0eabdSPaul Burton else if (gic_present) 43*eed0eabdSPaul Burton mips_cpu_perf_irq = gic_get_c0_perfcount_int(); 44*eed0eabdSPaul Burton else if (cp0_perfcount_irq >= 0) 45*eed0eabdSPaul Burton mips_cpu_perf_irq = MIPS_CPU_IRQ_BASE + cp0_perfcount_irq; 46*eed0eabdSPaul Burton else 47*eed0eabdSPaul Burton mips_cpu_perf_irq = -1; 48*eed0eabdSPaul Burton 49*eed0eabdSPaul Burton return mips_cpu_perf_irq; 50*eed0eabdSPaul Burton } 51*eed0eabdSPaul Burton 52*eed0eabdSPaul Burton unsigned int get_c0_compare_int(void) 53*eed0eabdSPaul Burton { 54*eed0eabdSPaul Burton int mips_cpu_timer_irq; 55*eed0eabdSPaul Burton 56*eed0eabdSPaul Burton if (cpu_has_veic) 57*eed0eabdSPaul Burton panic("Unimplemented!"); 58*eed0eabdSPaul Burton else if (gic_present) 59*eed0eabdSPaul Burton mips_cpu_timer_irq = gic_get_c0_compare_int(); 60*eed0eabdSPaul Burton else 61*eed0eabdSPaul Burton mips_cpu_timer_irq = MIPS_CPU_IRQ_BASE + cp0_compare_irq; 62*eed0eabdSPaul Burton 63*eed0eabdSPaul Burton return mips_cpu_timer_irq; 64*eed0eabdSPaul Burton } 65