fix(intel): fix ECC Double Bit Error handling
SError and Abort are handled in Linux (EL1) instead of
EL3. This patch adds some functionality that complements the
use cases by Linux as follows:
- Provide SMC for ECC DBE notification to EL3
- Determine type of reset needed and service the request in
place of Linux
Signed-off-by: Abdul Halim, Muhammad Hadi Asyrafi <muhammad.hadi.asyrafi.abdul.halim@intel.com>
Signed-off-by: Sieu Mun Tang <sieu.mun.tang@intel.com>
Change-Id: I43d02c77f28004a31770be53599a5a42de412211
diff --git a/plat/intel/soc/common/sip/socfpga_sip_ecc.c b/plat/intel/soc/common/sip/socfpga_sip_ecc.c
new file mode 100644
index 0000000..c4e06a6
--- /dev/null
+++ b/plat/intel/soc/common/sip/socfpga_sip_ecc.c
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) 2020-2022, ARM Limited and Contributors. All rights reserved.
+ */
+
+#include <assert.h>
+#include <common/debug.h>
+#include <common/runtime_svc.h>
+#include <lib/mmio.h>
+#include <tools_share/uuid.h>
+
+#include "socfpga_fcs.h"
+#include "socfpga_mailbox.h"
+#include "socfpga_reset_manager.h"
+#include "socfpga_sip_svc.h"
+#include "socfpga_system_manager.h"
+
+uint32_t intel_ecc_dbe_notification(uint64_t dbe_value)
+{
+ dbe_value &= WARM_RESET_WFI_FLAG;
+
+ /* Trap CPUs in WFI if warm reset flag is set */
+ if (dbe_value > 0) {
+ while (1) {
+ wfi();
+ }
+ }
+
+ return INTEL_SIP_SMC_STATUS_OK;
+}
+
+bool cold_reset_for_ecc_dbe(void)
+{
+ uint32_t dbe_int_status;
+
+ dbe_int_status = mmio_read_32(SOCFPGA_SYSMGR(BOOT_SCRATCH_COLD_8));
+
+ /* Trigger cold reset only for error in critical memory (DDR/OCRAM) */
+ dbe_int_status &= SYSMGR_ECC_DBE_COLD_RST_MASK;
+
+ if (dbe_int_status > 0) {
+ return true;
+ }
+
+ return false;
+}