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| /*
| * (C) Copyright 2012-2014
| * Texas Instruments Incorporated, <www.ti.com>
| *
| * SPDX-License-Identifier: GPL-2.0+
| */
|
| #include <common.h>
| #include <asm/io.h>
| #include <div64.h>
| #include <bootstage.h>
|
| DECLARE_GLOBAL_DATA_PTR;
|
| int timer_init(void)
| {
| gd->arch.tbl = 0;
| gd->arch.tbu = 0;
|
| gd->arch.timer_rate_hz = CONFIG_SYS_HZ_CLOCK;
| return 0;
| }
|
| unsigned long long get_ticks(void)
| {
| ulong nowl, nowu;
|
| asm volatile("mrrc p15, 0, %0, %1, c14" : "=r" (nowl), "=r" (nowu));
|
| gd->arch.tbl = nowl;
| gd->arch.tbu = nowu;
|
| return (((unsigned long long)gd->arch.tbu) << 32) | gd->arch.tbl;
| }
|
|
| ulong timer_get_boot_us(void)
| {
| return lldiv(get_ticks(), CONFIG_SYS_HZ_CLOCK / 1000000);
| }
|
| ulong get_tbclk(void)
| {
| return gd->arch.timer_rate_hz;
| }
|
|
