From ea0364f1bbfed1e3ea711147420875cf338fe77a Mon Sep 17 00:00:00 2001 From: Peter Tyser Date: Mon, 12 Apr 2010 22:28:04 -0500 Subject: Move lib_$ARCH directories to arch/$ARCH/lib Also move lib_$ARCH/config.mk to arch/$ARCH/config.mk This change is intended to clean up the top-level directory structure and more closely mimic Linux's directory organization. Signed-off-by: Peter Tyser --- arch/ppc/lib/cache.c | 53 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 arch/ppc/lib/cache.c (limited to 'arch/ppc/lib/cache.c') diff --git a/arch/ppc/lib/cache.c b/arch/ppc/lib/cache.c new file mode 100644 index 00000000000..338b08bd770 --- /dev/null +++ b/arch/ppc/lib/cache.c @@ -0,0 +1,53 @@ +/* + * (C) Copyright 2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include +#include +#include + +void flush_cache(ulong start_addr, ulong size) +{ +#ifndef CONFIG_5xx + ulong addr, start, end; + + 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"); + WATCHDOG_RESET(); + } + /* 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"); + WATCHDOG_RESET(); + } + asm volatile("sync" : : : "memory"); + /* flush prefetch queue */ + asm volatile("isync" : : : "memory"); +#endif +} -- cgit v1.2.3