blob: 88060e33116eecdd124529da818a5a129ccf7b79 [file] [log] [blame]
/*
* arch/arm/cpu/armv8/txl/firmware/bl21/timer.c
*
* Copyright (C) 2015 Amlogic, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "io.h"
#include "timer.h"
#define P_ISA_TIMERE (volatile unsigned int *)0xc1109988
#define P_EE_TIMER_E P_ISA_TIMERE
unsigned int get_time(void)
{
return readl(P_EE_TIMER_E);
}
void _udelay(unsigned int us)
{
#ifndef CONFIG_PXP_EMULATOR
unsigned int t0 = get_time();
while (get_time() - t0 <= us)
;
#endif
}