plat: imx: add sdei support for i.MX8MM
Add sdei support for i.MX8MM, this is to let jailhouse Hypervisor
could use SDEI to do hypervisor management, after physical IRQ
has been disabled routing.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Change-Id: I5fd697fee22df151e13d0f1335e8ac8a7bae6189
diff --git a/plat/imx/common/imx_ehf.c b/plat/imx/common/imx_ehf.c
new file mode 100644
index 0000000..a9396cd
--- /dev/null
+++ b/plat/imx/common/imx_ehf.c
@@ -0,0 +1,22 @@
+/*
+ * Copyright 2020 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <bl31/ehf.h>
+
+#include <platform_def.h>
+
+ehf_pri_desc_t imx_exceptions[] = {
+#if SDEI_SUPPORT
+ /* Critical priority SDEI */
+ EHF_PRI_DESC(PLAT_PRI_BITS, PLAT_SDEI_CRITICAL_PRI),
+
+ /* Normal priority SDEI */
+ EHF_PRI_DESC(PLAT_PRI_BITS, PLAT_SDEI_NORMAL_PRI),
+#endif
+};
+
+/* Plug in ARM exceptions to Exception Handling Framework. */
+EHF_REGISTER_PRIORITIES(imx_exceptions, ARRAY_SIZE(imx_exceptions), PLAT_PRI_BITS);