90afb8f429
Add a new PM CPU ops driver for Arm Fixed Virtual Platform (FVP) that enables bare metal SMP support without Arm Trusted Firmware (ATF). The driver provides CPU power-on and system reset operations by directly interfacing with FVP's power controller (PWRC) and V2M system registers. The implementation includes RVBAR_EL3 configuration to redirect secondary CPU reset vectors to Zephyr's image header, enabling proper SMP initialization without firmware assistance. Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
52 lines
1.6 KiB
Plaintext
52 lines
1.6 KiB
Plaintext
# CPU power management driver configuration options
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# Copyright (c) 2021 Carlo Caione <ccaione@baylibre.com>
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# SPDX-License-Identifier: Apache-2.0
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menuconfig PM_CPU_OPS
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bool "CPU power management drivers"
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help
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Enable CPU power management drivers configuration
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if PM_CPU_OPS
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module = PM_CPU_OPS
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module-str = pm_cpu_ops
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source "subsys/logging/Kconfig.template.log_config"
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config PM_CPU_OPS_HAS_DRIVER
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bool
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config PM_CPU_OPS_PSCI
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bool "Support for the ARM Power State Coordination Interface (PSCI)"
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default y
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depends on DT_HAS_ARM_PSCI_0_2_ENABLED || DT_HAS_ARM_PSCI_1_1_ENABLED
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select PM_CPU_OPS_HAS_DRIVER
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select HAS_POWEROFF
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help
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Say Y here if you want Zephyr to communicate with system firmware
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implementing the PSCI specification for CPU-centric power
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management operations described in ARM document number ARM DEN
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0022A ("Power State Coordination Interface System Software on
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ARM processors").
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config PM_CPU_OPS_FVP
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bool "Support for Arm FVP CPU power management"
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depends on DT_HAS_ARM_FVP_PWRC_ENABLED && !PM_CPU_OPS_PSCI
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default y if SMP
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select PM_CPU_OPS_HAS_DRIVER
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help
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Say Y here if you want Zephyr to support CPU power management
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operations on Arm Fixed Virtual Platform (FVP) without PSCI.
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This driver directly controls the FVP power controller and
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V2M system registers for CPU power-on and system reset operations.
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config PSCI_SHELL
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bool "Support for PSCI interface shell commands"
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depends on SHELL && PM_CPU_OPS_PSCI
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help
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Say Y here if you need to enable PSCI interface shell commands
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like 'warm' and 'cold' reset commands.
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endif
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