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5e1b83aa74
This patch provides the platform level support to enable GICv3 drivers on future Tegra platforms. Signed-off-by: Varun Wadekar <vwadekar@nvidia.com> Change-Id: I966a4502b2a4a7bd1ce66da843997c9ed605c59f
79 lines
2.5 KiB
C
79 lines
2.5 KiB
C
/*
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* Copyright (c) 2020, NVIDIA Corporation. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <assert.h>
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#include <common/bl_common.h>
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#include <drivers/arm/gicv3.h>
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#include <lib/utils.h>
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#include <plat/common/platform.h>
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#include <platform_def.h>
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#include <tegra_private.h>
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#include <tegra_def.h>
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/* The GICv3 driver only needs to be initialized in EL3 */
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static uintptr_t rdistif_base_addrs[PLATFORM_CORE_COUNT];
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static unsigned int plat_tegra_mpidr_to_core_pos(unsigned long mpidr)
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{
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return (unsigned int)plat_core_pos_by_mpidr(mpidr);
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}
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/******************************************************************************
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* Tegra common helper to setup the GICv3 driver data.
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*****************************************************************************/
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void tegra_gic_setup(const interrupt_prop_t *interrupt_props,
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unsigned int interrupt_props_num)
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{
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/*
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* Tegra GIC configuration settings
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*/
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static gicv3_driver_data_t tegra_gic_data;
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/*
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* Register Tegra GICv3 driver
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*/
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tegra_gic_data.gicd_base = TEGRA_GICD_BASE;
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tegra_gic_data.gicr_base = TEGRA_GICR_BASE;
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tegra_gic_data.rdistif_num = PLATFORM_CORE_COUNT;
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tegra_gic_data.rdistif_base_addrs = rdistif_base_addrs;
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tegra_gic_data.mpidr_to_core_pos = plat_tegra_mpidr_to_core_pos;
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tegra_gic_data.interrupt_props = interrupt_props;
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tegra_gic_data.interrupt_props_num = interrupt_props_num;
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gicv3_driver_init(&tegra_gic_data);
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/* initialize the GICD and GICR */
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tegra_gic_init();
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}
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/******************************************************************************
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* Tegra common helper to initialize the GICv3 only driver.
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*****************************************************************************/
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void tegra_gic_init(void)
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{
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gicv3_distif_init();
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gicv3_rdistif_init(plat_my_core_pos());
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gicv3_cpuif_enable(plat_my_core_pos());
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}
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/******************************************************************************
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* Tegra common helper to disable the GICv3 CPU interface
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*****************************************************************************/
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void tegra_gic_cpuif_deactivate(void)
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{
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gicv3_cpuif_disable(plat_my_core_pos());
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}
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/******************************************************************************
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* Tegra common helper to initialize the per cpu distributor interface
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* in GICv3
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*****************************************************************************/
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void tegra_gic_pcpu_init(void)
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{
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gicv3_rdistif_init(plat_my_core_pos());
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gicv3_cpuif_enable(plat_my_core_pos());
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}
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