GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/trusted-firmware/trusted-firmware-a-2.8/drivers/nxp/gic/ls_gicv2.c

@@ -0,0 +1,76 @@
+/*
+ * Copyright 2021 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+
+#include <gicv2.h>
+#include <plat_gic.h>
+
+
+/*
+ * NXP common helper to initialize the GICv3 only driver.
+ */
+void plat_ls_gic_driver_init(uintptr_t nxp_gicd_addr,
+			     uintptr_t nxp_gicc_addr,
+			     uint8_t plat_core_count,
+			     interrupt_prop_t *ls_interrupt_props,
+			     uint8_t ls_interrupt_prop_count,
+			     uint32_t *target_mask_array)
+{
+	static struct gicv2_driver_data ls_gic_data;
+
+	ls_gic_data.gicd_base = nxp_gicd_addr;
+	ls_gic_data.gicc_base = nxp_gicc_addr;
+	ls_gic_data.target_masks = target_mask_array;
+	ls_gic_data.target_masks_num = plat_core_count;
+	ls_gic_data.interrupt_props = ls_interrupt_props;
+	ls_gic_data.interrupt_props_num = ls_interrupt_prop_count;
+
+	gicv2_driver_init(&ls_gic_data);
+}
+
+void plat_ls_gic_init(void)
+{
+	gicv2_distif_init();
+	gicv2_pcpu_distif_init();
+	gicv2_cpuif_enable();
+}
+
+/******************************************************************************
+ * ARM common helper to enable the GICv2 CPU interface
+ *****************************************************************************/
+void plat_ls_gic_cpuif_enable(void)
+{
+	gicv2_cpuif_enable();
+}
+
+/******************************************************************************
+ * ARM common helper to disable the GICv2 CPU interface
+ *****************************************************************************/
+void plat_ls_gic_cpuif_disable(void)
+{
+	gicv2_cpuif_disable();
+}
+
+/******************************************************************************
+ * NXP common helper to initialize GICv2 per cpu
+ *****************************************************************************/
+void plat_gic_pcpu_init(void)
+{
+	gicv2_pcpu_distif_init();
+	gicv2_cpuif_enable();
+}
+
+/******************************************************************************
+ * Stubs for Redistributor power management. Although GICv2 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)
+{
+}