diff options
Diffstat (limited to 'services/std_svc/psci/psci_entry.S')
| -rw-r--r-- | services/std_svc/psci/psci_entry.S | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/services/std_svc/psci/psci_entry.S b/services/std_svc/psci/psci_entry.S deleted file mode 100644 index 3e67d344..00000000 --- a/services/std_svc/psci/psci_entry.S +++ /dev/null @@ -1,172 +0,0 @@ -/* - * Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * Redistributions of source code must retain the above copyright notice, this - * list of conditions and the following disclaimer. - * - * Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * - * Neither the name of ARM nor the names of its contributors may be used - * to endorse or promote products derived from this software without specific - * prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include <arch.h> -#include <asm_macros.S> -#include <psci.h> -#include <xlat_tables.h> - - .globl psci_aff_on_finish_entry - .globl psci_aff_suspend_finish_entry - .globl psci_power_down_wfi - - /* ----------------------------------------------------- - * This cpu has been physically powered up. Depending - * upon whether it was resumed from suspend or simply - * turned on, call the common power on finisher with - * the handlers (chosen depending upon original state). - * ----------------------------------------------------- - */ -func psci_aff_on_finish_entry - adr x23, psci_afflvl_on_finishers - b psci_aff_common_finish_entry - -psci_aff_suspend_finish_entry: - adr x23, psci_afflvl_suspend_finishers - -psci_aff_common_finish_entry: -#if !RESET_TO_BL31 - /* --------------------------------------------- - * Perform any processor specific actions which - * undo or are in addition to the actions - * performed by the reset handler in the BootROM - * (BL1) e.g. cache, tlb invalidations, errata - * workarounds etc. - * --------------------------------------------- - */ - bl reset_handler - - /* --------------------------------------------- - * Enable the instruction cache, stack pointer - * and data access alignment checks. - * It can be assumed that BL3-1 entrypoint code - * will do this when RESET_TO_BL31 is set. The - * same assumption cannot be made when another - * boot loader executes before BL3-1 in the warm - * boot path e.g. BL1. - * --------------------------------------------- - */ - mov x1, #(SCTLR_I_BIT | SCTLR_A_BIT | SCTLR_SA_BIT) - mrs x0, sctlr_el3 - orr x0, x0, x1 - msr sctlr_el3, x0 - isb -#endif - - /* --------------------------------------------- - * Initialise the pcpu cache pointer for the CPU - * --------------------------------------------- - */ - bl init_cpu_data_ptr - - /* --------------------------------------------- - * Initialize the cpu_ops pointer. - * --------------------------------------------- - */ - bl init_cpu_ops - - /* --------------------------------------------- - * Set the exception vectors - * --------------------------------------------- - */ - adr x0, runtime_exceptions - msr vbar_el3, x0 - isb - - /* --------------------------------------------- - * Enable the SError interrupt now that the - * exception vectors have been setup. - * --------------------------------------------- - */ - msr daifclr, #DAIF_ABT_BIT - - /* --------------------------------------------- - * Use SP_EL0 for the C runtime stack. - * --------------------------------------------- - */ - msr spsel, #0 - - /* -------------------------------------------- - * Give ourselves a stack whose memory will be - * marked as Normal-IS-WBWA when the MMU is - * enabled. - * -------------------------------------------- - */ - mrs x0, mpidr_el1 - bl platform_set_stack - - /* -------------------------------------------- - * Enable the MMU with the DCache disabled. It - * is safe to use stacks allocated in normal - * memory as a result. All memory accesses are - * marked nGnRnE when the MMU is disabled. So - * all the stack writes will make it to memory. - * All memory accesses are marked Non-cacheable - * when the MMU is enabled but D$ is disabled. - * So used stack memory is guaranteed to be - * visible immediately after the MMU is enabled - * Enabling the DCache at the same time as the - * MMU can lead to speculatively fetched and - * possibly stale stack memory being read from - * other caches. This can lead to coherency - * issues. - * -------------------------------------------- - */ - mov x0, #DISABLE_DCACHE - bl bl31_plat_enable_mmu - - /* --------------------------------------------- - * Call the finishers starting from affinity - * level 0. - * --------------------------------------------- - */ - bl get_power_on_target_afflvl - mov x2, x23 - mov x1, x0 - mov x0, #MPIDR_AFFLVL0 - bl psci_afflvl_power_on_finish - - b el3_exit - - /* -------------------------------------------- - * This function is called to indicate to the - * power controller that it is safe to power - * down this cpu. It should not exit the wfi - * and will be released from reset upon power - * up. 'wfi_spill' is used to catch erroneous - * exits from wfi. - * -------------------------------------------- - */ -func psci_power_down_wfi - dsb sy // ensure write buffer empty - wfi -wfi_spill: - b wfi_spill - |