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150 lines
3.5 KiB
150 lines
3.5 KiB
/*
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* Copyright (c) 2015-2016, 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.h>
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#include <asm_macros.S>
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#include <assert_macros.S>
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#include <denver.h>
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#include <cpu_macros.S>
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#include <plat_macros.S>
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.global denver_disable_dco
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/* ---------------------------------------------
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* Disable debug interfaces
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* ---------------------------------------------
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*/
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func denver_disable_ext_debug
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mov x0, #1
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msr osdlr_el1, x0
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isb
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dsb sy
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ret
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endfunc denver_disable_ext_debug
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/* ----------------------------------------------------
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* Enable dynamic code optimizer (DCO)
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* ----------------------------------------------------
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*/
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func denver_enable_dco
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mrs x0, mpidr_el1
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and x0, x0, #0xF
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mov x1, #1
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lsl x1, x1, x0
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msr s3_0_c15_c0_2, x1
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ret
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endfunc denver_enable_dco
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/* ----------------------------------------------------
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* Disable dynamic code optimizer (DCO)
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* ----------------------------------------------------
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*/
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func denver_disable_dco
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/* turn off background work */
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mrs x0, mpidr_el1
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and x0, x0, #0xF
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mov x1, #1
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lsl x1, x1, x0
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lsl x2, x1, #16
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msr s3_0_c15_c0_2, x2
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isb
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/* wait till the background work turns off */
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1: mrs x2, s3_0_c15_c0_2
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lsr x2, x2, #32
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and w2, w2, 0xFFFF
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and x2, x2, x1
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cbnz x2, 1b
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ret
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endfunc denver_disable_dco
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/* -------------------------------------------------
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* The CPU Ops reset function for Denver.
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* -------------------------------------------------
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*/
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func denver_reset_func
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mov x19, x30
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/* ----------------------------------------------------
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* Enable dynamic code optimizer (DCO)
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* ----------------------------------------------------
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*/
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bl denver_enable_dco
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ret x19
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endfunc denver_reset_func
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/* ----------------------------------------------------
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* The CPU Ops core power down function for Denver.
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* ----------------------------------------------------
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*/
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func denver_core_pwr_dwn
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mov x19, x30
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/* ---------------------------------------------
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* Force the debug interfaces to be quiescent
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* ---------------------------------------------
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*/
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bl denver_disable_ext_debug
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ret x19
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endfunc denver_core_pwr_dwn
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/* -------------------------------------------------------
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* The CPU Ops cluster power down function for Denver.
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* -------------------------------------------------------
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*/
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func denver_cluster_pwr_dwn
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ret
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endfunc denver_cluster_pwr_dwn
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/* ---------------------------------------------
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* This function provides Denver specific
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* register information for crash reporting.
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* It needs to return with x6 pointing to
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* a list of register names in ascii and
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* x8 - x15 having values of registers to be
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* reported.
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* ---------------------------------------------
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*/
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.section .rodata.denver_regs, "aS"
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denver_regs: /* The ascii list of register names to be reported */
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.asciz "actlr_el1", ""
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func denver_cpu_reg_dump
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adr x6, denver_regs
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mrs x8, ACTLR_EL1
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ret
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endfunc denver_cpu_reg_dump
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declare_cpu_ops denver, DENVER_MIDR_PN0, \
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denver_reset_func, \
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denver_core_pwr_dwn, \
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denver_cluster_pwr_dwn
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declare_cpu_ops denver, DENVER_MIDR_PN1, \
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denver_reset_func, \
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denver_core_pwr_dwn, \
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denver_cluster_pwr_dwn
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declare_cpu_ops denver, DENVER_MIDR_PN2, \
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denver_reset_func, \
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denver_core_pwr_dwn, \
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denver_cluster_pwr_dwn
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declare_cpu_ops denver, DENVER_MIDR_PN3, \
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denver_reset_func, \
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denver_core_pwr_dwn, \
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denver_cluster_pwr_dwn
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declare_cpu_ops denver, DENVER_MIDR_PN4, \
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denver_reset_func, \
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denver_core_pwr_dwn, \
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denver_cluster_pwr_dwn
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