arm: zynq: Add SLCR support with system reset

The patch provides slcr base address initialization support
and a support to reset the cpu through slcr driver,
hence removed the reset_cpu() from board.c.

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

2 files changed, 71 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-zynq/hardware.h b/arch/arm/include/asm/arch-zynq/hardware.h
new file mode 100644
index 0000000..ad17b27
--- /dev/null
+++ b/arch/arm/include/asm/arch-zynq/hardware.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2013 Xilinx Inc.
+ *
+ * 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
+ */
+
+#ifndef _ASM_ARCH_HARDWARE_H
+#define _ASM_ARCH_HARDWARE_H
+
+#define XPSS_SYS_CTRL_BASEADDR		0xF8000000
+
+/* Reflect slcr offsets */
+struct slcr_regs {
+	u32 scl; /* 0x0 */
+	u32 slcr_lock; /* 0x4 */
+	u32 slcr_unlock; /* 0x8 */
+	u32 reserved1[125];
+	u32 pss_rst_ctrl; /* 0x200 */
+	u32 reserved2[21];
+	u32 reboot_status; /* 0x258 */
+};
+
+#define slcr_base ((struct slcr_regs *) XPSS_SYS_CTRL_BASEADDR)
+
+#endif /* _ASM_ARCH_HARDWARE_H */
diff --git a/arch/arm/include/asm/arch-zynq/sys_proto.h b/arch/arm/include/asm/arch-zynq/sys_proto.h
new file mode 100644
index 0000000..e788900
--- /dev/null
+++ b/arch/arm/include/asm/arch-zynq/sys_proto.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2013 Xilinx Inc.
+ *
+ * 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
+ */
+
+#ifndef _SYS_PROTO_H_
+#define _SYS_PROTO_H_
+
+extern void zynq_slcr_lock(void);
+extern void zynq_slcr_unlock(void);
+extern void zynq_slcr_cpu_reset(void);
+
+#endif /* _SYS_PROTO_H_ */