diff options
author | Ley Foon Tan <ley.foon.tan@intel.com> | 2019-03-22 01:24:04 +0800 |
---|---|---|
committer | Marek Vasut <marex@denx.de> | 2019-04-17 22:20:17 +0200 |
commit | 8ab9daabe5e88a401c891d02d4a765de2c6abaa2 (patch) | |
tree | 9814b08289457d2a74ab0730ad62b2ddcd38b207 /arch/arm/mach-socfpga/reset_manager_s10.c | |
parent | 62e6278d1e7e6628a9ea8b4429a99247fc6a6be6 (diff) |
arm: socfpga: stratix10: Add cpu_has_been_warmreset()
Add helper function cpu_has_been_warmreset() to check
if CPU is from warm reset boot.
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
Diffstat (limited to 'arch/arm/mach-socfpga/reset_manager_s10.c')
-rw-r--r-- | arch/arm/mach-socfpga/reset_manager_s10.c | 9 |
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 f176c384951..f8dd787cc6a 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; +} |