ti: k3: common: Enable GICv3 support
Do proper initialization of GIC V3. This will allow CP15 access to GIC
from "normal world" (aka HLOS) via mrc/mcr calls.
K3 SoC family uses GICv3 compliant GIC500 without compatibility for
legacy GICv2.
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Benjamin Fair <b-fair@ti.com>
Signed-off-by: Andrew F. Davis <afd@ti.com>
diff --git a/plat/ti/k3/common/k3_gicv3.c b/plat/ti/k3/common/k3_gicv3.c
new file mode 100644
index 0000000..3253130
--- /dev/null
+++ b/plat/ti/k3/common/k3_gicv3.c
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <bl_common.h>
+#include <gicv3.h>
+#include <interrupt_props.h>
+#include <k3_gicv3.h>
+#include <platform.h>
+#include <platform_def.h>
+#include <utils.h>
+
+/* The GICv3 driver only needs to be initialized in EL3 */
+uintptr_t rdistif_base_addrs[PLATFORM_CORE_COUNT];
+
+static const interrupt_prop_t k3_interrupt_props[] = {
+ PLAT_ARM_G1S_IRQ_PROPS(INTR_GROUP1S),
+ PLAT_ARM_G0_IRQ_PROPS(INTR_GROUP0)
+};
+
+static unsigned int k3_mpidr_to_core_pos(unsigned long mpidr)
+{
+ return (unsigned int)plat_core_pos_by_mpidr(mpidr);
+}
+
+gicv3_driver_data_t k3_gic_data = {
+ .rdistif_num = PLATFORM_CORE_COUNT,
+ .rdistif_base_addrs = rdistif_base_addrs,
+ .interrupt_props = k3_interrupt_props,
+ .interrupt_props_num = ARRAY_SIZE(k3_interrupt_props),
+ .mpidr_to_core_pos = k3_mpidr_to_core_pos,
+};
+
+void k3_gic_driver_init(uintptr_t gicd_base, uintptr_t gicr_base)
+{
+ /*
+ * The GICv3 driver is initialized in EL3 and does not need
+ * to be initialized again in SEL1. This is because the S-EL1
+ * can use GIC system registers to manage interrupts and does
+ * not need GIC interface base addresses to be configured.
+ */
+ k3_gic_data.gicd_base = gicd_base;
+ k3_gic_data.gicr_base = gicr_base;
+ gicv3_driver_init(&k3_gic_data);
+}
+
+void k3_gic_init(void)
+{
+ gicv3_distif_init();
+ gicv3_rdistif_init(plat_my_core_pos());
+ gicv3_cpuif_enable(plat_my_core_pos());
+}
+
+void k3_gic_cpuif_enable(void)
+{
+ gicv3_cpuif_enable(plat_my_core_pos());
+}
+
+void k3_gic_cpuif_disable(void)
+{
+ gicv3_cpuif_disable(plat_my_core_pos());
+}
+
+void k3_gic_pcpu_init(void)
+{
+ gicv3_rdistif_init(plat_my_core_pos());
+}