* (C) Copyright 2002
* Gary Jennejohn, DENX Software Engineering, <garyj@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+
*/
/*
void __weak cpu_cache_initialization(void){}
-int cleanup_before_linux(void)
+int cleanup_before_linux_select(int flags)
{
/*
* this function is called just before we call linux
icache_disable();
invalidate_icache_all();
- /*
- * turn off D-cache
- * dcache_disable() in turn flushes the d-cache and disables MMU
- */
- dcache_disable();
- v7_outer_cache_disable();
+ if (flags & CBL_DISABLE_CACHES) {
+ /*
+ * turn off D-cache
+ * dcache_disable() in turn flushes the d-cache and disables MMU
+ */
+ dcache_disable();
+ v7_outer_cache_disable();
- /*
- * After D-cache is flushed and before it is disabled there may
- * be some new valid entries brought into the cache. We are sure
- * that these lines are not dirty and will not affect our execution.
- * (because unwinding the call-stack and setting a bit in CP15 SCTRL
- * is all we did during this. We have not pushed anything on to the
- * stack. Neither have we affected any static data)
- * So just invalidate the entire d-cache again to avoid coherency
- * problems for kernel
- */
- invalidate_dcache_all();
+ /*
+ * After D-cache is flushed and before it is disabled there may
+ * be some new valid entries brought into the cache. We are
+ * sure that these lines are not dirty and will not affect our
+ * execution. (because unwinding the call-stack and setting a
+ * bit in CP15 SCTRL is all we did during this. We have not
+ * pushed anything on to the stack. Neither have we affected
+ * any static data) So just invalidate the entire d-cache again
+ * to avoid coherency problems for kernel
+ */
+ invalidate_dcache_all();
+ } else {
+ flush_dcache_all();
+ invalidate_icache_all();
+ icache_enable();
+ }
/*
* Some CPU need more cache attention before starting the kernel.
return 0;
}
+
+int cleanup_before_linux(void)
+{
+ return cleanup_before_linux_select(CBL_ALL);
+}