nxp: platform files for bl2 and bl31 setup
For NXP platforms:
- Setup files for BL2 and BL31
- Other supporting files.
Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com>
Change-Id: I36a1183a0652701bdede9e02d41eb976accbb017
diff --git a/plat/nxp/common/setup/ls_interrupt_mgmt.c b/plat/nxp/common/setup/ls_interrupt_mgmt.c
new file mode 100644
index 0000000..a81cb2b
--- /dev/null
+++ b/plat/nxp/common/setup/ls_interrupt_mgmt.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2020 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+
+#include <bl31/interrupt_mgmt.h>
+#include <common/debug.h>
+#include <ls_interrupt_mgmt.h>
+#include <plat/common/platform.h>
+
+static interrupt_type_handler_t type_el3_interrupt_table[MAX_INTR_EL3];
+
+int request_intr_type_el3(uint32_t id, interrupt_type_handler_t handler)
+{
+ /* Validate 'handler' and 'id' parameters */
+ if (!handler || id >= MAX_INTR_EL3) {
+ return -EINVAL;
+ }
+
+ /* Check if a handler has already been registered */
+ if (type_el3_interrupt_table[id] != NULL) {
+ return -EALREADY;
+ }
+
+ type_el3_interrupt_table[id] = handler;
+
+ return 0;
+}
+
+static uint64_t ls_el3_interrupt_handler(uint32_t id, uint32_t flags,
+ void *handle, void *cookie)
+{
+ uint32_t intr_id;
+ interrupt_type_handler_t handler;
+
+ intr_id = plat_ic_get_pending_interrupt_id();
+
+ INFO("Interrupt recvd is %d\n", intr_id);
+
+ handler = type_el3_interrupt_table[intr_id];
+ if (handler != NULL) {
+ handler(intr_id, flags, handle, cookie);
+ }
+
+ /*
+ * Mark this interrupt as complete to avoid a interrupt storm.
+ */
+ plat_ic_end_of_interrupt(intr_id);
+
+ return 0U;
+}
+
+void ls_el3_interrupt_config(void)
+{
+ uint64_t flags = 0U;
+ uint64_t rc;
+
+ set_interrupt_rm_flag(flags, NON_SECURE);
+ rc = register_interrupt_type_handler(INTR_TYPE_EL3,
+ ls_el3_interrupt_handler, flags);
+ if (rc != 0U) {
+ panic();
+ }
+}