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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2008
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* Texas Instruments, <www.ti.com>
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*
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* Richard Woodruff <r-woodruff2@ti.com>
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* Syed Mohammed Khasim <khasim@ti.com>
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*/
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#include <common.h>
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#include <asm/io.h>
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/************************************************************
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* sdelay() - simple spin loop. Will be constant time as
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* its generally used in bypass conditions only. This
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* is necessary until timers are accessible.
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*
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* not inline to increase chances its in cache when called
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*************************************************************/
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void sdelay(unsigned long loops)
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{
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__asm__ volatile ("1:\n" "subs %0, %1, #1\n"
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"bne 1b":"=r" (loops):"0"(loops));
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}
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/*********************************************************************
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* wait_on_value() - common routine to allow waiting for changes in
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* volatile regs.
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*********************************************************************/
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u32 wait_on_value(u32 read_bit_mask, u32 match_value, void *read_addr,
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u32 bound)
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{
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u32 i = 0, val;
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do {
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++i;
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val = readl((u32)read_addr) & read_bit_mask;
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if (val == match_value)
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return 1;
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if (i == bound)
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return 0;
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} while (1);
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}
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