Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / arch / arm / cpu / armv7 / socfpga / reset_manager.c

diff --git a/qemu/roms/u-boot/arch/arm/cpu/armv7/socfpga/reset_manager.c b/qemu/roms/u-boot/arch/arm/cpu/armv7/socfpga/reset_manager.c
new file mode 100644 (file)
index 0000000..e320c01
--- /dev/null
+++ b/qemu/roms/u-boot/arch/arm/cpu/armv7/socfpga/reset_manager.c
@@ -0,0 +1,39 @@
+/*
+ *  Copyright (C) 2013 Altera Corporation <www.altera.com>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/reset_manager.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static const struct socfpga_reset_manager *reset_manager_base =
+               (void *)SOCFPGA_RSTMGR_ADDRESS;
+
+/*
+ * Write the reset manager register to cause reset
+ */
+void reset_cpu(ulong addr)
+{
+       /* request a warm reset */
+       writel((1 << RSTMGR_CTRL_SWWARMRSTREQ_LSB),
+               &reset_manager_base->ctrl);
+       /*
+        * infinite loop here as watchdog will trigger and reset
+        * the processor
+        */
+       while (1)
+               ;
+}
+
+/*
+ * Release peripherals from reset based on handoff
+ */
+void reset_deassert_peripherals_handoff(void)
+{
+       writel(0, &reset_manager_base->per_mod_reset);
+}