72 lines
1.9 KiB
C
72 lines
1.9 KiB
C
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2011-2014, 2016, 2018-2019, 2021 The Linux Foundation.
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <asm/cacheflush.h>
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#include <asm/cputype.h>
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#include <asm/smp_plat.h>
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#include <linux/qcom_scm.h>
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#include "pm-boot.h"
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#include "idle.h"
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#define CPU_INDEX(cluster, cpu) (cluster * MAX_CPUS_PER_CLUSTER + cpu)
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#define SCM_FLAG_WARMBOOT_MC 0x04
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static void (*msm_pm_boot_before_pc)(unsigned int cpu, unsigned long entry);
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static void (*msm_pm_boot_after_pc)(unsigned int cpu);
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static int msm_pm_tz_boot_init(void)
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{
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phys_addr_t warmboot_addr = msm_pm_boot_entry;
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return qcom_scm_set_warm_boot_addr_mc(warmboot_addr, ~0U, ~0U, ~0U,
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SCM_FLAG_WARMBOOT_MC);
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}
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static void msm_pm_write_boot_vector(unsigned int cpu, unsigned long address)
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{
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uint32_t clust_id = MPIDR_AFFINITY_LEVEL(cpu_logical_map(cpu), 1);
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uint32_t cpu_id = MPIDR_AFFINITY_LEVEL(cpu_logical_map(cpu), 0);
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unsigned long *start_address;
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unsigned long *end_address;
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if (clust_id >= MAX_NUM_CLUSTER || cpu_id >= MAX_CPUS_PER_CLUSTER)
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WARN_ON(cpu);
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msm_pm_boot_vector[CPU_INDEX(clust_id, cpu_id)] = address;
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start_address = &msm_pm_boot_vector[CPU_INDEX(clust_id, cpu_id)];
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end_address = &msm_pm_boot_vector[CPU_INDEX(clust_id, cpu_id + 1)];
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}
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static void msm_pm_config_tz_before_pc(unsigned int cpu,
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unsigned long entry)
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{
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msm_pm_write_boot_vector(cpu, entry);
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}
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void msm_pm_boot_config_before_pc(unsigned int cpu, unsigned long entry)
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{
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if (msm_pm_boot_before_pc)
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msm_pm_boot_before_pc(cpu, entry);
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}
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void msm_pm_boot_config_after_pc(unsigned int cpu)
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{
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if (msm_pm_boot_after_pc)
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msm_pm_boot_after_pc(cpu);
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}
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static int __init msm_pm_boot_init(void)
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{
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int ret = 0;
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ret = msm_pm_tz_boot_init();
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msm_pm_boot_before_pc = msm_pm_config_tz_before_pc;
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msm_pm_boot_after_pc = NULL;
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return ret;
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}
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late_initcall(msm_pm_boot_init);
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