blob: 32ecf69021379e83cc07278b4389bbc3fa0da147 [file] [log] [blame]
* arch/arm/cpu/armv8/txl/firmware/scp_task/lib/delay.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.
#define P_AO_TIMER_E (*((volatile unsigned *)(0xff800000 + (0x15 << 2))))
unsigned int get_time(void)
return P_AO_TIMER_E;
void _udelay(unsigned int us)
unsigned int t0 = get_time();
while (get_time() - t0 <= us)