diff options
Diffstat (limited to 'plat/rockchip/common/pmusram/pmu_sram_cpus_on.S')
| -rw-r--r-- | plat/rockchip/common/pmusram/pmu_sram_cpus_on.S | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/plat/rockchip/common/pmusram/pmu_sram_cpus_on.S b/plat/rockchip/common/pmusram/pmu_sram_cpus_on.S new file mode 100644 index 00000000..5a1854b4 --- /dev/null +++ b/plat/rockchip/common/pmusram/pmu_sram_cpus_on.S @@ -0,0 +1,53 @@ +/* + * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <arch.h> +#include <asm_macros.S> +#include <platform_def.h> + + .globl pmu_cpuson_entrypoint + .macro pmusram_entry_func _name + .section .pmusram.entry, "ax" + .type \_name, %function + .func \_name + .cfi_startproc + \_name: + .endm + +pmusram_entry_func pmu_cpuson_entrypoint + +#if PSRAM_CHECK_WAKEUP_CPU +check_wake_cpus: + mrs x0, MPIDR_EL1 + and x1, x0, #MPIDR_CPU_MASK + and x0, x0, #MPIDR_CLUSTER_MASK + orr x0, x0, x1 + + /* primary_cpu */ + ldr w1, boot_mpidr + cmp w0, w1 + b.eq sys_wakeup + + /* + * If the core is not the primary cpu, + * force the core into wfe. + */ +wfe_loop: + wfe + b wfe_loop +sys_wakeup: +#endif + +#if PSRAM_DO_DDR_RESUME +ddr_resume: + ldr x2, =__bl31_sram_stack_end + mov sp, x2 + bl dmc_resume +#endif + bl sram_restore +sys_resume: + bl psci_entrypoint +endfunc pmu_cpuson_entrypoint |