Initial import of qemu-2.4.1HEADmaster

1 files changed, 39 insertions, 0 deletions

diff --git a/roms/u-boot/arch/arm/cpu/armv7/socfpga/reset_manager.c b/roms/u-boot/arch/arm/cpu/armv7/socfpga/reset_manager.c
new file mode 100644
index 00000000..e320c011
--- /dev/null
+++ b/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);
+}