120 lines
2.9 KiB
C
120 lines
2.9 KiB
C
/*
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* Copyright (c) 2014-2018, ARM Limited and Contributors. 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 <arch_helpers.h>
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#include <assert.h>
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#include <console.h>
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#include <platform.h>
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#include <xlat_mmu_helpers.h>
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/*
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* The following platform setup functions are weakly defined. They
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* provide typical implementations that may be re-used by multiple
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* platforms but may also be overridden by a platform if required.
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*/
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#pragma weak bl31_plat_enable_mmu
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#pragma weak bl32_plat_enable_mmu
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#pragma weak bl31_plat_runtime_setup
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#if !ERROR_DEPRECATED
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#pragma weak plat_get_syscnt_freq2
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#pragma weak bl31_early_platform_setup2
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#endif /* ERROR_DEPRECATED */
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#if SDEI_SUPPORT
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#pragma weak plat_sdei_handle_masked_trigger
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#pragma weak plat_sdei_validate_entry_point
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#endif
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#pragma weak plat_ea_handler
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void bl31_plat_enable_mmu(uint32_t flags)
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{
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enable_mmu_el3(flags);
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}
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void bl32_plat_enable_mmu(uint32_t flags)
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{
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enable_mmu_el1(flags);
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}
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void bl31_plat_runtime_setup(void)
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{
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#if MULTI_CONSOLE_API
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console_switch_state(CONSOLE_FLAG_RUNTIME);
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#else
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console_uninit();
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#endif
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}
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#if !ENABLE_PLAT_COMPAT
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/*
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* Helper function for platform_get_pos() when platform compatibility is
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* disabled. This is to enable SPDs using the older platform API to continue
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* to work.
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*/
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unsigned int platform_core_pos_helper(unsigned long mpidr)
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{
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int idx = plat_core_pos_by_mpidr(mpidr);
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assert(idx >= 0);
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return idx;
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}
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#endif
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#if !ERROR_DEPRECATED
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unsigned int plat_get_syscnt_freq2(void)
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{
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WARN("plat_get_syscnt_freq() is deprecated\n");
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WARN("Please define plat_get_syscnt_freq2()\n");
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/*
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* Suppress deprecated declaration warning in compatibility function
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*/
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
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unsigned long long freq = plat_get_syscnt_freq();
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#pragma GCC diagnostic pop
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assert(freq >> 32 == 0);
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return (unsigned int)freq;
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}
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void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
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u_register_t arg2, u_register_t arg3)
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{
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bl31_early_platform_setup((void *) arg0, (void *)arg1);
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}
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#endif /* ERROR_DEPRECATED */
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#if SDEI_SUPPORT
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/*
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* Function that handles spurious SDEI interrupts while events are masked.
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*/
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void plat_sdei_handle_masked_trigger(uint64_t mpidr, unsigned int intr)
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{
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WARN("Spurious SDEI interrupt %u on masked PE %llx\n", intr, mpidr);
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}
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/*
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* Default Function to validate SDEI entry point, which returns success.
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* Platforms may override this with their own validation mechanism.
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*/
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int plat_sdei_validate_entry_point(uintptr_t ep, unsigned int client_mode)
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{
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return 0;
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}
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#endif
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/* RAS functions common to AArch64 ARM platforms */
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void plat_ea_handler(unsigned int ea_reason, uint64_t syndrome, void *cookie,
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void *handle, uint64_t flags)
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{
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ERROR("Unhandled External Abort received on 0x%lx at EL3!\n",
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read_mpidr_el1());
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ERROR(" exception reason=%u syndrome=0x%lx\n", ea_reason, syndrome);
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panic();
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}
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