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Diffstat (limited to 'arch/arm/mach-socfpga/reset_manager_s10.c')
-rw-r--r--arch/arm/mach-socfpga/reset_manager_s10.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/mach-socfpga/reset_manager_s10.c b/arch/arm/mach-socfpga/reset_manager_s10.c
index f176c38495..f8dd787cc6 100644
--- a/arch/arm/mach-socfpga/reset_manager_s10.c
+++ b/arch/arm/mach-socfpga/reset_manager_s10.c
@@ -103,3 +103,12 @@ void reset_deassert_peripherals_handoff(void)
writel(~RSTMGR_PER0MODRST_OCP_MASK, &reset_manager_base->per0modrst);
writel(0, &reset_manager_base->per0modrst);
}
+
+/*
+ * Return non-zero if the CPU has been warm reset
+ */
+int cpu_has_been_warmreset(void)
+{
+ return readl(&reset_manager_base->status) &
+ RSTMGR_L4WD_MPU_WARMRESET_MASK;
+}