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Diffstat (limited to 'cpu/arm926ejs/spear/reset.c')
-rwxr-xr-xcpu/arm926ejs/spear/reset.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/cpu/arm926ejs/spear/reset.c b/cpu/arm926ejs/spear/reset.c
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--- /dev/null
+++ b/cpu/arm926ejs/spear/reset.c
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+/*
+ * (C) Copyright 2009
+ * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com.
+ *
+ * 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 <asm/io.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/spr_syscntl.h>
+
+void reset_cpu(ulong ignored)
+{
+ struct syscntl_regs *syscntl_regs_p =
+ (struct syscntl_regs *)CONFIG_SPEAR_SYSCNTLBASE;
+
+ printf("System is going to reboot ...\n");
+
+ /*
+ * This 1 second delay will allow the above message
+ * to be printed before reset
+ */
+ udelay((1000 * 1000));
+
+ /* Going into slow mode before resetting SOC */
+ writel(0x02, &syscntl_regs_p->scctrl);
+
+ /*
+ * Writing any value to the system status register will
+ * reset the SoC
+ */
+ writel(0x00, &syscntl_regs_p->scsysstat);
+
+ /* system will restart */
+ while (1)
+ ;
+}