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Diffstat (limited to 'arch/arm/cpu/s3c44b0/cpu.c')
-rw-r--r--arch/arm/cpu/s3c44b0/cpu.c74
1 files changed, 74 insertions, 0 deletions
diff --git a/arch/arm/cpu/s3c44b0/cpu.c b/arch/arm/cpu/s3c44b0/cpu.c
new file mode 100644
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+++ b/arch/arm/cpu/s3c44b0/cpu.c
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+/*
+ * (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
+ */
+
+/*
+ * S3C44B0 CPU specific code
+ */
+
+#include <common.h>
+#include <command.h>
+#include <asm/hardware.h>
+
+int arch_cpu_init (void)
+{
+ icache_enable();
+
+ return 0;
+}
+
+int cleanup_before_linux (void)
+{
+ /*
+ cache memory should be enabled before calling
+ Linux to make the kernel uncompression faster
+ */
+ icache_enable();
+
+ disable_interrupts ();
+
+ return 0;
+}
+
+void reset_cpu (ulong addr)
+{
+ /*
+ reset the cpu using watchdog
+ */
+
+ /* Disable the watchdog.*/
+ WTCON&=~(1<<5);
+
+ /* set the timeout value to a short time... */
+ WTCNT = 0x1;
+
+ /* Enable the watchdog. */
+ WTCON|=1;
+ WTCON|=(1<<5);
+
+ while(1) {
+ /*NOP*/
+ }
+}