x86: fsp: Make sure HOB list is not overwritten by U-Boot

[u-boot] / arch / microblaze / cpu / cache.c

diff --git a/arch/microblaze/cpu/cache.c b/arch/microblaze/cpu/cache.c
index 3b7c4d4f7f9a61b79a0dc1cde5b778e5aab12b3d..ddfa02000ec3c3d63088521a5bc450dcc6ef18f6 100644 (file)
--- a/arch/microblaze/cpu/cache.c
+++ b/arch/microblaze/cpu/cache.c
@@ -3,23 +3,7 @@
  *
  * Michal SIMEK <monstr@monstr.eu>
  *
- * 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+
  */
 
 #include <common.h>
@@ -50,6 +34,8 @@ 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 +44,26 @@ void dcache_enable (void) {
 }
 
 void   dcache_disable(void) {
+#ifdef XILINX_USE_DCACHE
+       flush_cache(0, XILINX_DCACHE_BYTE_SIZE);
+#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");
+}