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

source/trusted-firmware/trusted-firmware-a-2.8/plat/rockchip/common/rockchip_gicv3.c

@@ -0,0 +1,95 @@
+/*
+ * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <platform_def.h>
+
+#include <common/bl_common.h>
+#include <common/interrupt_props.h>
+#include <drivers/arm/gicv3.h>
+#include <lib/utils.h>
+#include <plat/common/platform.h>
+
+/******************************************************************************
+ * The following functions are defined as weak to allow a platform to override
+ * the way the GICv3 driver is initialised and used.
+ *****************************************************************************/
+#pragma weak plat_rockchip_gic_driver_init
+#pragma weak plat_rockchip_gic_init
+#pragma weak plat_rockchip_gic_cpuif_enable
+#pragma weak plat_rockchip_gic_cpuif_disable
+#pragma weak plat_rockchip_gic_pcpu_init
+
+/* The GICv3 driver only needs to be initialized in EL3 */
+uintptr_t rdistif_base_addrs[PLATFORM_CORE_COUNT];
+
+static const interrupt_prop_t g01s_interrupt_props[] = {
+	PLAT_RK_GICV3_G0_IRQS,
+	PLAT_RK_GICV3_G1S_IRQS
+};
+
+static unsigned int plat_rockchip_mpidr_to_core_pos(unsigned long mpidr)
+{
+	return (unsigned int)plat_core_pos_by_mpidr(mpidr);
+}
+
+const gicv3_driver_data_t rockchip_gic_data = {
+	.gicd_base = PLAT_RK_GICD_BASE,
+	.gicr_base = PLAT_RK_GICR_BASE,
+	.interrupt_props = g01s_interrupt_props,
+	.interrupt_props_num = ARRAY_SIZE(g01s_interrupt_props),
+	.rdistif_num = PLATFORM_CORE_COUNT,
+	.rdistif_base_addrs = rdistif_base_addrs,
+	.mpidr_to_core_pos = plat_rockchip_mpidr_to_core_pos,
+};
+
+void plat_rockchip_gic_driver_init(void)
+{
+	/*
+	 * 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.
+	 */
+#ifdef IMAGE_BL31
+	gicv3_driver_init(&rockchip_gic_data);
+#endif
+}
+
+/******************************************************************************
+ * RockChip common helper to initialize the GIC. Only invoked
+ * by BL31
+ *****************************************************************************/
+void plat_rockchip_gic_init(void)
+{
+	gicv3_distif_init();
+	gicv3_rdistif_init(plat_my_core_pos());
+	gicv3_cpuif_enable(plat_my_core_pos());
+}
+
+/******************************************************************************
+ * RockChip common helper to enable the GIC CPU interface
+ *****************************************************************************/
+void plat_rockchip_gic_cpuif_enable(void)
+{
+	gicv3_cpuif_enable(plat_my_core_pos());
+}
+
+/******************************************************************************
+ * RockChip common helper to disable the GIC CPU interface
+ *****************************************************************************/
+void plat_rockchip_gic_cpuif_disable(void)
+{
+	gicv3_cpuif_disable(plat_my_core_pos());
+}
+
+/******************************************************************************
+ * RockChip common helper to initialize the per-cpu redistributor interface
+ * in GICv3
+ *****************************************************************************/
+void plat_rockchip_gic_pcpu_init(void)
+{
+	gicv3_rdistif_init(plat_my_core_pos());
+}