* (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
+ * SPDX-License-Identifier: GPL-2.0+
*/
/* for now: just dummy functions to satisfy the linker */
#include <common.h>
-void flush_cache (unsigned long dummy1, unsigned long dummy2)
+__weak void flush_cache(unsigned long start, unsigned long size)
{
-#if defined(CONFIG_OMAP2420) || defined(CONFIG_ARM1136)
- void arm1136_cache_flush(void);
+#if defined(CONFIG_CPU_ARM1136)
+
+#if !defined(CONFIG_SYS_ICACHE_OFF)
+ asm("mcr p15, 0, r1, c7, c5, 0"); /* invalidate I cache */
+#endif
- arm1136_cache_flush();
+#if !defined(CONFIG_SYS_DCACHE_OFF)
+ asm("mcr p15, 0, r1, c7, c14, 0"); /* Clean+invalidate D cache */
#endif
-#ifdef CONFIG_ARM926EJS
+
+#endif /* CONFIG_CPU_ARM1136 */
+
+#ifdef CONFIG_CPU_ARM926EJS
/* test and clean, page 2-23 of arm926ejs manual */
asm("0: mrc p15, 0, r15, c7, c10, 3\n\t" "bne 0b\n" : : : "memory");
/* disable write buffer as well (page 2-22) */
asm("mcr p15, 0, %0, c7, c10, 4" : : "r" (0));
-#endif
-#ifdef CONFIG_ARMV7
- void v7_flush_cache_all(void);
-
- v7_flush_cache_all();
-#endif
+#endif /* CONFIG_CPU_ARM926EJS */
return;
}
+
+/*
+ * Default implementation:
+ * do a range flush for the entire range
+ */
+__weak void flush_dcache_all(void)
+{
+ flush_cache(0, ~0);
+}
+
+/*
+ * Default implementation of enable_caches()
+ * Real implementation should be in platform code
+ */
+__weak void enable_caches(void)
+{
+ puts("WARNING: Caches not enabled\n");
+}