u-boot/arch/powerpc/lib/cache.c
Stefan Roese 29caf9305b cyclic: Use schedule() instead of WATCHDOG_RESET()
Globally replace all occurances of WATCHDOG_RESET() with schedule(),
which handles the HW_WATCHDOG functionality and the cyclic
infrastructure.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Tom Rini <trini@konsulko.com> [am335x_evm, mx6cuboxi, rpi_3,dra7xx_evm, pine64_plus, am65x_evm, j721e_evm]
2022-09-18 10:26:33 +02:00

46 lines
1.1 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*/
#include <common.h>
#include <cpu_func.h>
#include <asm/cache.h>
#include <watchdog.h>
static ulong maybe_watchdog_reset(ulong flushed)
{
flushed += CONFIG_SYS_CACHELINE_SIZE;
if (flushed >= CONFIG_CACHE_FLUSH_WATCHDOG_THRESHOLD) {
schedule();
flushed = 0;
}
return flushed;
}
void flush_cache(ulong start_addr, ulong size)
{
ulong addr, start, end;
ulong flushed = 0;
start = start_addr & ~(CONFIG_SYS_CACHELINE_SIZE - 1);
end = start_addr + size - 1;
for (addr = start; (addr <= end) && (addr >= start);
addr += CONFIG_SYS_CACHELINE_SIZE) {
asm volatile("dcbst 0,%0" : : "r" (addr) : "memory");
flushed = maybe_watchdog_reset(flushed);
}
/* wait for all dcbst to complete on bus */
asm volatile("sync" : : : "memory");
for (addr = start; (addr <= end) && (addr >= start);
addr += CONFIG_SYS_CACHELINE_SIZE) {
asm volatile("icbi 0,%0" : : "r" (addr) : "memory");
flushed = maybe_watchdog_reset(flushed);
}
asm volatile("sync" : : : "memory");
/* flush prefetch queue */
asm volatile("isync" : : : "memory");
}