1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * TI DaVinci clocksource driver 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Copyright (C) 2019 Texas Instruments 6*4882a593Smuzhiyun * Author: Bartosz Golaszewski <bgolaszewski@baylibre.com> 7*4882a593Smuzhiyun */ 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #ifndef __TIMER_DAVINCI_H__ 10*4882a593Smuzhiyun #define __TIMER_DAVINCI_H__ 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #include <linux/clk.h> 13*4882a593Smuzhiyun #include <linux/ioport.h> 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun enum { 16*4882a593Smuzhiyun DAVINCI_TIMER_CLOCKEVENT_IRQ, 17*4882a593Smuzhiyun DAVINCI_TIMER_CLOCKSOURCE_IRQ, 18*4882a593Smuzhiyun DAVINCI_TIMER_NUM_IRQS, 19*4882a593Smuzhiyun }; 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun /** 22*4882a593Smuzhiyun * struct davinci_timer_cfg - davinci clocksource driver configuration struct 23*4882a593Smuzhiyun * @reg: register range resource 24*4882a593Smuzhiyun * @irq: clockevent and clocksource interrupt resources 25*4882a593Smuzhiyun * @cmp_off: if set - it specifies the compare register used for clockevent 26*4882a593Smuzhiyun * 27*4882a593Smuzhiyun * Note: if the compare register is specified, the driver will use the bottom 28*4882a593Smuzhiyun * clock half for both clocksource and clockevent and the compare register 29*4882a593Smuzhiyun * to generate event irqs. The user must supply the correct compare register 30*4882a593Smuzhiyun * interrupt number. 31*4882a593Smuzhiyun * 32*4882a593Smuzhiyun * This is only used by da830 the DSP of which uses the top half. The timer 33*4882a593Smuzhiyun * driver still configures the top half to run in free-run mode. 34*4882a593Smuzhiyun */ 35*4882a593Smuzhiyun struct davinci_timer_cfg { 36*4882a593Smuzhiyun struct resource reg; 37*4882a593Smuzhiyun struct resource irq[DAVINCI_TIMER_NUM_IRQS]; 38*4882a593Smuzhiyun unsigned int cmp_off; 39*4882a593Smuzhiyun }; 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun int __init davinci_timer_register(struct clk *clk, 42*4882a593Smuzhiyun const struct davinci_timer_cfg *data); 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun #endif /* __TIMER_DAVINCI_H__ */ 45