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microblaze: Consolidate cache code 

Merge cpu and lib cache code.
Flush cache before disabling.

Signed-off-by: Michal Simek <monstr@monstr.eu>
This commit is contained in:
Michal Simek 2010-04-16 12:56:33 +02:00
parent 9b4d905690
commit 8ff972c6e9
3 changed files with 28 additions and 44 deletions
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28
arch/microblaze/cpu/cache.c
View File

@ -50,6 +50,8 @@ void icache_enable (void) {
}
void icache_disable(void) {
/* we are not generate ICACHE size -> flush whole cache */
flush_cache(0, 32768);
MSRCLR(0x20);
}
@ -58,5 +60,31 @@ void dcache_enable (void) {
}
void dcache_disable(void) {
#ifdef XILINX_USE_DCACHE
#ifdef XILINX_DCACHE_BYTE_SIZE
flush_cache(0, XILINX_DCACHE_BYTE_SIZE);
#else
#warning please rebuild BSPs and update configuration
flush_cache(0, 32768);
#endif
#endif
MSRCLR(0x80);
}
void flush_cache (ulong addr, ulong size)
{
int i;
for (i = 0; i < size; i += 4)
asm volatile (
#ifdef CONFIG_ICACHE
"wic %0, r0;"
#endif
"nop;"
#ifdef CONFIG_DCACHE
"wdc.flush %0, r0;"
#endif
"nop;"
:
: "r" (addr + i)
: "memory");
}

1
arch/microblaze/lib/Makefile
View File

@ -29,7 +29,6 @@ SOBJS-y +=
COBJS-y += board.o
COBJS-y += bootm.o
COBJS-y += cache.o
COBJS-y += time.o
SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)

43
arch/microblaze/lib/cache.c
View File

@ -1,43 +0,0 @@
/*
* (C) Copyright 2004 Atmark Techno, Inc.
*
* Yasushi SHOJI <yashi@atmark-techno.com>
*
* 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 <common.h>
void flush_cache (ulong addr, ulong size)
{
int i;
for (i = 0; i < size; i += 4)
asm volatile (
#ifdef CONFIG_ICACHE
"wic %0, r0;"
#endif
"nop;"
#ifdef CONFIG_DCACHE
"wdc.flush %0, r0;"
#endif
"nop;"
:
: "r" (addr + i)
: "memory");
}