Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / arch / arm / cpu / arm926ejs / spear / reset.c

diff --git a/qemu/roms/u-boot/arch/arm/cpu/arm926ejs/spear/reset.c b/qemu/roms/u-boot/arch/arm/cpu/arm926ejs/spear/reset.c
new file mode 100644 (file)
index 0000000..9546e80
--- /dev/null
+++ b/qemu/roms/u-boot/arch/arm/cpu/arm926ejs/spear/reset.c
@@ -0,0 +1,38 @@
+/*
+ * (C) Copyright 2009
+ * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#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)
+               ;
+}