// SPDX-License-Identifier: GPL-2.0-only/* * * Copyright (C) 2014 ARM Limited */ #include <linux/clocksource.h>#include <linux/io.h>#include <linux/of.h>#include <linux/of_address.h>#include <linux/sched_clock.h> #define SYS_24MHZ 0x05c static void __iomem *versatile_sys_24mhz; static u64 notrace versatile_sys_24mhz_read(void){	return readl(versatile_sys_24mhz);} static int __init versatile_sched_clock_init(struct device_node *node){	void __iomem *base = of_iomap(node, 0); 	of_node_clear_flag(node, OF_POPULATED); 	if (!base)		return -ENXIO; 	versatile_sys_24mhz = base + SYS_24MHZ; 	sched_clock_register(versatile_sys_24mhz_read, 32, 24000000); 	return 0;}TIMER_OF_DECLARE(vexpress, "arm,vexpress-sysreg",		       versatile_sched_clock_init);TIMER_OF_DECLARE(versatile, "arm,versatile-sysreg",		       versatile_sched_clock_init);