nxp: adding gic apis for nxp soc
GIC api used by NXP SoC is based on:
- arm provided drivers: /drivers/arm/gic
Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com>
Change-Id: If3d470256e5bd078614f191e56062c4fbd97f8bd
diff --git a/drivers/nxp/gic/ls_gicv3.c b/drivers/nxp/gic/ls_gicv3.c
new file mode 100644
index 0000000..9c02bd6
--- /dev/null
+++ b/drivers/nxp/gic/ls_gicv3.c
@@ -0,0 +1,78 @@
+/*
+ * Copyright 2021 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+
+#include <drivers/arm/gicv3.h>
+#include <plat_gic.h>
+#include <plat/common/platform.h>
+
+/*
+ * NXP common helper to initialize the GICv3 only driver.
+ */
+void plat_ls_gic_driver_init(uintptr_t nxp_gicd_addr,
+ uintptr_t nxp_gicr_addr,
+ uint8_t plat_core_count,
+ interrupt_prop_t *ls_interrupt_props,
+ uint8_t ls_interrupt_prop_count,
+ uintptr_t *target_mask_array,
+ mpidr_hash_fn mpidr_to_core_pos)
+{
+ static struct gicv3_driver_data ls_gic_data;
+
+ ls_gic_data.gicd_base = nxp_gicd_addr;
+ ls_gic_data.gicr_base = nxp_gicr_addr;
+ ls_gic_data.interrupt_props = ls_interrupt_props;
+ ls_gic_data.interrupt_props_num = ls_interrupt_prop_count;
+ ls_gic_data.rdistif_num = plat_core_count;
+ ls_gic_data.rdistif_base_addrs = target_mask_array;
+ ls_gic_data.mpidr_to_core_pos = mpidr_to_core_pos;
+
+ gicv3_driver_init(&ls_gic_data);
+}
+
+void plat_ls_gic_init(void)
+{
+ gicv3_distif_init();
+ gicv3_rdistif_init(plat_my_core_pos());
+ gicv3_cpuif_enable(plat_my_core_pos());
+}
+
+/*
+ * NXP common helper to enable the GICv3 CPU interface
+ */
+void plat_ls_gic_cpuif_enable(void)
+{
+ gicv3_cpuif_enable(plat_my_core_pos());
+}
+
+/*
+ * NXP common helper to disable the GICv3 CPU interface
+ */
+void plat_ls_gic_cpuif_disable(void)
+{
+ gicv3_cpuif_disable(plat_my_core_pos());
+}
+
+/*
+ * NXP common helper to initialize the per cpu distributor interface in GICv3
+ */
+void plat_gic_pcpu_init(void)
+{
+ gicv3_rdistif_init(plat_my_core_pos());
+ gicv3_cpuif_enable(plat_my_core_pos());
+}
+
+/*
+ * Stubs for Redistributor power management. Although GICv3 doesn't have
+ * Redistributor interface, these are provided for the sake of uniform GIC API
+ */
+void plat_ls_gic_redistif_on(void)
+{
+}
+
+void plat_ls_gic_redistif_off(void)
+{
+}