/* * Copyright (c) 2019, Arm Limited. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ #include #include #include /* --------------------------------------------- * HW will do the cache maintenance while powering down * --------------------------------------------- */ func cortex_a76ae_core_pwr_dwn /* --------------------------------------------- * Enable CPU power down bit in power control register * --------------------------------------------- */ mrs x0, CORTEX_A76AE_CPUPWRCTLR_EL1 orr x0, x0, #CORTEX_A76AE_CORE_PWRDN_EN_MASK msr CORTEX_A76AE_CPUPWRCTLR_EL1, x0 isb ret endfunc cortex_a76ae_core_pwr_dwn #if REPORT_ERRATA /* * Errata printing function for Cortex-A76AE. Must follow AAPCS. */ func cortex_a76ae_errata_report ret endfunc cortex_a76ae_errata_report #endif /* REPORT_ERRATA */ /* --------------------------------------------- * This function provides cortex_a76ae specific * register information for crash reporting. * It needs to return with x6 pointing to * a list of register names in ascii and * x8 - x15 having values of registers to be * reported. * --------------------------------------------- */ .section .rodata.cortex_a76ae_regs, "aS" cortex_a76ae_regs: /* The ASCII list of register names to be reported */ .asciz "cpuectlr_el1", "" func cortex_a76ae_cpu_reg_dump adr x6, cortex_a76ae_regs mrs x8, CORTEX_A76AE_CPUECTLR_EL1 ret endfunc cortex_a76ae_cpu_reg_dump declare_cpu_ops cortex_a76ae, CORTEX_A76AE_MIDR, CPU_NO_RESET_FUNC, \ cortex_a76ae_core_pwr_dwn