173 lines
4.2 KiB
C
173 lines
4.2 KiB
C
/*
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* Copyright (c) 2021, MediaTek Inc. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <assert.h>
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#include <common/debug.h>
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#include <drivers/delay_timer.h>
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#include <lib/mmio.h>
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#include <mcucfg.h>
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#include <mtspmc.h>
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#include <mtspmc_private.h>
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#include <plat/common/platform.h>
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void mcucfg_disable_gic_wakeup(unsigned int cluster, unsigned int cpu)
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{
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mmio_setbits_32(MCUCFG_CPC_FLOW_CTRL_CFG, GIC_WAKEUP_IGNORE(cpu));
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}
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void mcucfg_enable_gic_wakeup(unsigned int cluster, unsigned int cpu)
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{
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mmio_clrbits_32(MCUCFG_CPC_FLOW_CTRL_CFG, GIC_WAKEUP_IGNORE(cpu));
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/* Clear cpu's cpc sw hint */
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mmio_write_32(CPC_MCUSYS_CPU_ON_SW_HINT_CLR, BIT(cpu));
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}
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void mcucfg_set_bootaddr(unsigned int cluster, unsigned int cpu, uintptr_t bootaddr)
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{
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assert(cluster == 0U);
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mmio_write_32(per_cpu(cluster, cpu, MCUCFG_BOOTADDR), bootaddr);
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}
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uintptr_t mcucfg_get_bootaddr(unsigned int cluster, unsigned int cpu)
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{
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assert(cluster == 0U);
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return (uintptr_t)mmio_read_32(per_cpu(cluster, cpu, MCUCFG_BOOTADDR));
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}
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void mcucfg_init_archstate(unsigned int cluster, unsigned int cpu, bool arm64)
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{
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uint32_t reg;
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assert(cluster == 0U);
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reg = per_cluster(cluster, MCUCFG_INITARCH);
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if (arm64) {
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mmio_setbits_32(reg, MCUCFG_INITARCH_CPU_BIT(cpu));
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} else {
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mmio_clrbits_32(reg, MCUCFG_INITARCH_CPU_BIT(cpu));
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}
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}
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/*
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* Return subsystem's power state.
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*
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* @mask: mask to SPM_CPU_PWR_STATUS to query the power state
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* of one subsystem.
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* RETURNS:
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* 0 (the subsys was powered off)
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* 1 (the subsys was powered on)
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*/
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bool spm_get_powerstate(uint32_t mask)
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{
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return (mmio_read_32(SPM_CPU_PWR_STATUS) & mask);
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}
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bool spm_get_cluster_powerstate(unsigned int cluster)
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{
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assert(cluster == 0U);
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return spm_get_powerstate(MP0_CPUTOP);
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}
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bool spm_get_cpu_powerstate(unsigned int cluster, unsigned int cpu)
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{
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uint32_t mask = BIT(cpu);
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assert(cluster == 0U);
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return spm_get_powerstate(mask);
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}
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int spmc_init(void)
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{
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unsigned int cpu = plat_my_core_pos();
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INFO("SPM: enable CPC mode\n");
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mmio_write_32(SPM_POWERON_CONFIG_EN, PROJECT_CODE | BCLK_CG_EN);
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mmio_setbits_32(per_cpu(0, 1, SPM_CPU_PWR), PWR_RST_B);
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mmio_setbits_32(per_cpu(0, 2, SPM_CPU_PWR), PWR_RST_B);
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mmio_setbits_32(per_cpu(0, 3, SPM_CPU_PWR), PWR_RST_B);
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mmio_setbits_32(per_cpu(0, 4, SPM_CPU_PWR), PWR_RST_B);
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mmio_setbits_32(per_cpu(0, 5, SPM_CPU_PWR), PWR_RST_B);
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mmio_setbits_32(per_cpu(0, 6, SPM_CPU_PWR), PWR_RST_B);
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mmio_setbits_32(per_cpu(0, 7, SPM_CPU_PWR), PWR_RST_B);
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mmio_clrbits_32(SPM_MCUSYS_PWR_CON, RESETPWRON_CONFIG);
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mmio_clrbits_32(SPM_MP0_CPUTOP_PWR_CON, RESETPWRON_CONFIG);
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mmio_clrbits_32(per_cpu(0, 0, SPM_CPU_PWR), RESETPWRON_CONFIG);
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mmio_setbits_32(MCUCFG_CPC_FLOW_CTRL_CFG, CPC_CTRL_ENABLE);
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/* Clear bootup cpu's cpc sw hint */
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mmio_write_32(CPC_MCUSYS_CPU_ON_SW_HINT_CLR, BIT(cpu));
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return 0;
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}
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/*
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* Power on a core with specified cluster and core index
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*
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* @cluster: the cluster ID of the CPU which to be powered on
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* @cpu: the CPU ID of the CPU which to be powered on
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*/
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void spm_poweron_cpu(unsigned int cluster, unsigned int cpu)
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{
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/* info CPC that CPU hotplug on */
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mmio_setbits_32(MCUCFG_CPC_FLOW_CTRL_CFG, SSPM_ALL_PWR_CTRL_EN);
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/* Set mp0_spmc_pwr_on_cpuX = 1 */
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mmio_setbits_32(per_cpu(cluster, cpu, SPM_CPU_PWR), PWR_ON);
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/* wait for power on ack */
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while (!spm_get_cpu_powerstate(cluster, cpu))
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;
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/* info CPC that CPU hotplug off */
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mmio_clrbits_32(MCUCFG_CPC_FLOW_CTRL_CFG, SSPM_ALL_PWR_CTRL_EN);
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}
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/*
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* Power off a core with specified cluster and core index
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*
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* @cluster: the cluster ID of the CPU which to be powered off
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* @cpu: the CPU ID of the CPU which to be powered off
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*/
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void spm_poweroff_cpu(unsigned int cluster, unsigned int cpu)
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{
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/* Set mp0_spmc_pwr_on_cpuX = 0 */
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mmio_clrbits_32(per_cpu(cluster, cpu, SPM_CPU_PWR), PWR_ON);
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}
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/*
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* Power off a cluster with specified index
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*
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* @cluster: the cluster index which to be powered off
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*/
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void spm_poweroff_cluster(unsigned int cluster)
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{
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/* No need to power on/off cluster on single cluster platform */
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assert(false);
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}
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/*
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* Power on a cluster with specified index
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*
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* @cluster: the cluster index which to be powered on
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*/
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void spm_poweron_cluster(unsigned int cluster)
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{
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/* No need to power on/off cluster on single cluster platform */
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assert(false);
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}
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