You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
98 lines
2.8 KiB
98 lines
2.8 KiB
/* Copyright (c) 2011-2014, 2016, 2018-2019, The Linux Foundation.
|
|
* All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 and
|
|
* only version 2 as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/init.h>
|
|
#include <soc/qcom/scm-boot.h>
|
|
#include <asm/cacheflush.h>
|
|
#include <asm/cputype.h>
|
|
#include <asm/smp_plat.h>
|
|
#include "pm-boot.h"
|
|
#include "idle.h"
|
|
|
|
#define CPU_INDEX(cluster, cpu) (cluster * MAX_CPUS_PER_CLUSTER + cpu)
|
|
|
|
static void (*msm_pm_boot_before_pc)(unsigned int cpu, unsigned long entry);
|
|
static void (*msm_pm_boot_after_pc)(unsigned int cpu);
|
|
|
|
static int msm_pm_tz_boot_init(void)
|
|
{
|
|
int ret;
|
|
phys_addr_t warmboot_addr = virt_to_phys(msm_pm_boot_entry);
|
|
|
|
if (scm_is_mc_boot_available())
|
|
ret = scm_set_warm_boot_addr_mc_for_all(warmboot_addr);
|
|
else {
|
|
unsigned int flag = 0;
|
|
|
|
if (num_possible_cpus() == 1)
|
|
flag = SCM_FLAG_WARMBOOT_CPU0;
|
|
else if (num_possible_cpus() == 2)
|
|
flag = SCM_FLAG_WARMBOOT_CPU0 | SCM_FLAG_WARMBOOT_CPU1;
|
|
else if (num_possible_cpus() == 4)
|
|
flag = SCM_FLAG_WARMBOOT_CPU0 | SCM_FLAG_WARMBOOT_CPU1 |
|
|
SCM_FLAG_WARMBOOT_CPU2 | SCM_FLAG_WARMBOOT_CPU3;
|
|
else
|
|
pr_warn("%s: set warmboot address failed\n",
|
|
__func__);
|
|
|
|
ret = scm_set_boot_addr(virt_to_phys(msm_pm_boot_entry), flag);
|
|
}
|
|
return ret;
|
|
}
|
|
static void msm_pm_write_boot_vector(unsigned int cpu, unsigned long address)
|
|
{
|
|
uint32_t clust_id = MPIDR_AFFINITY_LEVEL(cpu_logical_map(cpu), 1);
|
|
uint32_t cpu_id = MPIDR_AFFINITY_LEVEL(cpu_logical_map(cpu), 0);
|
|
unsigned long *start_address;
|
|
unsigned long *end_address;
|
|
|
|
if (clust_id >= MAX_NUM_CLUSTER || cpu_id >= MAX_CPUS_PER_CLUSTER)
|
|
WARN_ON(cpu);
|
|
|
|
msm_pm_boot_vector[CPU_INDEX(clust_id, cpu_id)] = address;
|
|
start_address = &msm_pm_boot_vector[CPU_INDEX(clust_id, cpu_id)];
|
|
end_address = &msm_pm_boot_vector[CPU_INDEX(clust_id, cpu_id + 1)];
|
|
dmac_clean_range((void *)start_address, (void *)end_address);
|
|
}
|
|
|
|
static void msm_pm_config_tz_before_pc(unsigned int cpu,
|
|
unsigned long entry)
|
|
{
|
|
msm_pm_write_boot_vector(cpu, entry);
|
|
}
|
|
|
|
void msm_pm_boot_config_before_pc(unsigned int cpu, unsigned long entry)
|
|
{
|
|
if (msm_pm_boot_before_pc)
|
|
msm_pm_boot_before_pc(cpu, entry);
|
|
}
|
|
|
|
void msm_pm_boot_config_after_pc(unsigned int cpu)
|
|
{
|
|
if (msm_pm_boot_after_pc)
|
|
msm_pm_boot_after_pc(cpu);
|
|
}
|
|
|
|
static int __init msm_pm_boot_init(void)
|
|
{
|
|
int ret = 0;
|
|
|
|
ret = msm_pm_tz_boot_init();
|
|
msm_pm_boot_before_pc = msm_pm_config_tz_before_pc;
|
|
msm_pm_boot_after_pc = NULL;
|
|
|
|
return ret;
|
|
}
|
|
postcore_initcall(msm_pm_boot_init);
|
|
|