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Diffstat (limited to 'arch/arm/cpu/armv7/socfpga/reset_manager.c')
-rw-r--r--arch/arm/cpu/armv7/socfpga/reset_manager.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/socfpga/reset_manager.c b/arch/arm/cpu/armv7/socfpga/reset_manager.c
new file mode 100644
index 0000000..e320c01
--- /dev/null
+++ b/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);
+}