|
@@ -0,0 +1,91 @@
|
|
|
+/*
|
|
|
+ * (C) Copyright 2004
|
|
|
+ * DAVE Srl
|
|
|
+ * http://www.dave-tech.it
|
|
|
+ * http://www.wawnet.biz
|
|
|
+ * mailto:info@wawnet.biz
|
|
|
+ *
|
|
|
+ * 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>
|
|
|
+#include <command.h>
|
|
|
+#include <asm/hardware.h>
|
|
|
+
|
|
|
+static void s3c44b0_flush_cache(void)
|
|
|
+{
|
|
|
+ volatile int i;
|
|
|
+ /* flush cycle */
|
|
|
+ for(i=0x10002000;i<0x10004800;i+=16)
|
|
|
+ {
|
|
|
+ *((int *)i)=0x0;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+void icache_enable (void)
|
|
|
+{
|
|
|
+ ulong reg;
|
|
|
+
|
|
|
+ s3c44b0_flush_cache();
|
|
|
+
|
|
|
+ /*
|
|
|
+ Init cache
|
|
|
+ Non-cacheable area (everything outside RAM)
|
|
|
+ 0x0000:0000 - 0x0C00:0000
|
|
|
+ */
|
|
|
+ NCACHBE0 = 0xC0000000;
|
|
|
+ NCACHBE1 = 0x00000000;
|
|
|
+
|
|
|
+ /*
|
|
|
+ Enable chache
|
|
|
+ */
|
|
|
+ reg = SYSCFG;
|
|
|
+ reg |= 0x00000006; /* 8kB */
|
|
|
+ SYSCFG = reg;
|
|
|
+}
|
|
|
+
|
|
|
+void icache_disable (void)
|
|
|
+{
|
|
|
+ ulong reg;
|
|
|
+
|
|
|
+ reg = SYSCFG;
|
|
|
+ reg &= ~0x00000006; /* 8kB */
|
|
|
+ SYSCFG = reg;
|
|
|
+}
|
|
|
+
|
|
|
+int icache_status (void)
|
|
|
+{
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+void dcache_enable (void)
|
|
|
+{
|
|
|
+ icache_enable();
|
|
|
+}
|
|
|
+
|
|
|
+void dcache_disable (void)
|
|
|
+{
|
|
|
+ icache_disable();
|
|
|
+}
|
|
|
+
|
|
|
+int dcache_status (void)
|
|
|
+{
|
|
|
+ return dcache_status();
|
|
|
+}
|
|
|
+
|