3 * Texas Instruments, <www.ti.com>
5 * Richard Woodruff <r-woodruff2@ti.com>
6 * Syed Mohammed Khasim <khasim@ti.com>
8 * SPDX-License-Identifier: GPL-2.0+
14 /************************************************************
15 * sdelay() - simple spin loop. Will be constant time as
16 * its generally used in bypass conditions only. This
17 * is necessary until timers are accessible.
19 * not inline to increase chances its in cache when called
20 *************************************************************/
21 void sdelay(unsigned long loops)
23 __asm__ volatile ("1:\n" "subs %0, %1, #1\n"
24 "bne 1b":"=r" (loops):"0"(loops));
27 /*********************************************************************
28 * wait_on_value() - common routine to allow waiting for changes in
30 *********************************************************************/
31 u32 wait_on_value(u32 read_bit_mask, u32 match_value, void *read_addr,
37 val = readl((u32)read_addr) & read_bit_mask;
38 if (val == match_value)