| XiaoDong Huang | 83f79a8 | 2019-06-13 10:55:50 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2019, ARM Limited and Contributors. All rights reserved. |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | |
| 7 | #include <arch.h> |
| 8 | #include <asm_macros.S> |
| 9 | #include <platform_def.h> |
| 10 | #include <cpus_on_fixed_addr.h> |
| 11 | |
| 12 | .globl sys_sleep_flag_sram |
| 13 | .globl pmu_cpuson_entrypoint |
| 14 | |
| 15 | .macro pmusram_entry_func _name |
| 16 | .section .pmusram.entry, "ax" |
| 17 | .type \_name, %function |
| 18 | .cfi_startproc |
| 19 | \_name: |
| 20 | .endm |
| 21 | |
| 22 | pmusram_entry_func pmu_cpuson_entrypoint |
| 23 | adr x5, sys_sleep_flag_sram |
| 24 | ldr w2, [x5, #PSRAM_DT_PM_FLAG] |
| 25 | |
| 26 | tbz w2, #PM_WARM_BOOT_SHT, sys_resume_sp |
| 27 | ldr x1, =platform_cpu_warmboot |
| 28 | br x1 |
| 29 | sys_resume_sp: |
| 30 | adr x5, sys_sleep_flag_sram |
| 31 | ldr x1, [x5, #PSRAM_DT_SP] |
| 32 | mov sp, x1 |
| 33 | ddr_resume: |
| 34 | ldr x1, [x5, #PSRAM_DT_DDR_FUNC] |
| 35 | cmp x1, #0 |
| 36 | b.eq sys_resume |
| 37 | blr x1 |
| 38 | sys_resume: |
| 39 | ldr x1, =bl31_warm_entrypoint |
| 40 | br x1 |
| 41 | endfunc pmu_cpuson_entrypoint |
| 42 | |
| 43 | .section .pmusram.data, "a" |
| 44 | .align 3 |
| 45 | sys_sleep_flag_sram: |
| 46 | .rept PSRAM_DT_SIZE_WORDS |
| 47 | .word 0 |
| 48 | .endr |