1*940f6b48SRalf Baechle /* 2*940f6b48SRalf Baechle * This file is subject to the terms and conditions of the GNU General Public 3*940f6b48SRalf Baechle * License. See the file "COPYING" in the main directory of this archive 4*940f6b48SRalf Baechle * for more details. 5*940f6b48SRalf Baechle * 6*940f6b48SRalf Baechle * Copyright (C) 2007 by Ralf Baechle 7*940f6b48SRalf Baechle */ 8*940f6b48SRalf Baechle 9*940f6b48SRalf Baechle static cycle_t c0_hpt_read(void) 10*940f6b48SRalf Baechle { 11*940f6b48SRalf Baechle return read_c0_count(); 12*940f6b48SRalf Baechle } 13*940f6b48SRalf Baechle 14*940f6b48SRalf Baechle static struct clocksource clocksource_mips = { 15*940f6b48SRalf Baechle .name = "MIPS", 16*940f6b48SRalf Baechle .read = c0_hpt_read, 17*940f6b48SRalf Baechle .mask = CLOCKSOURCE_MASK(32), 18*940f6b48SRalf Baechle .flags = CLOCK_SOURCE_IS_CONTINUOUS, 19*940f6b48SRalf Baechle }; 20*940f6b48SRalf Baechle 21*940f6b48SRalf Baechle static void __init init_mips_clocksource(void) 22*940f6b48SRalf Baechle { 23*940f6b48SRalf Baechle /* Calclate a somewhat reasonable rating value */ 24*940f6b48SRalf Baechle clocksource_mips.rating = 200 + mips_hpt_frequency / 10000000; 25*940f6b48SRalf Baechle 26*940f6b48SRalf Baechle clocksource_set_clock(&clocksource_mips, mips_hpt_frequency); 27*940f6b48SRalf Baechle 28*940f6b48SRalf Baechle clocksource_register(&clocksource_mips); 29*940f6b48SRalf Baechle } 30