drivers/timer/sti-timer.c

1 // SPDX-License-Identifier: GPL-2.0+
3  * Copyright (C) 2017, STMicroelectronics - All Rights Reserved
10 #include <timer.h>
13 #include <asm/arch-armv7/globaltimer.h>
24 	struct globaltimer *global_timer = priv->global_timer;  in sti_timer_get_count()
26 	u64 timer;  in sti_timer_get_count()  local
27 	u32 old = readl(&global_timer->cnt_h);  in sti_timer_get_count()
30 		low = readl(&global_timer->cnt_l);  in sti_timer_get_count()
31 		high = readl(&global_timer->cnt_h);  in sti_timer_get_count()
37 	timer = high;  in sti_timer_get_count()
38 	*count = (u64)((timer << 32) | low);  in sti_timer_get_count()
49 	uc_priv->clock_rate = CONFIG_SYS_HZ_CLOCK;  in sti_timer_probe()
51 	/* get arm global timer base address */  in sti_timer_probe()
52 	addr = fdtdec_get_addr(gd->fdt_blob, dev_of_offset(dev), "reg");  in sti_timer_probe()
53 	priv->global_timer = (struct globaltimer *)addr;  in sti_timer_probe()
55 	/* init timer */  in sti_timer_probe()
56 	writel(0x01, &priv->global_timer->ctl);  in sti_timer_probe()
66 	{ .compatible = "arm,cortex-a9-global-timer" },