diff options
Diffstat (limited to 'plat/mediatek/mt8195/drivers/spmc')
| -rw-r--r-- | plat/mediatek/mt8195/drivers/spmc/mtspmc.c | 166 | ||||
| -rw-r--r-- | plat/mediatek/mt8195/drivers/spmc/mtspmc.h | 31 | ||||
| -rw-r--r-- | plat/mediatek/mt8195/drivers/spmc/mtspmc_private.h | 183 |
3 files changed, 380 insertions, 0 deletions
diff --git a/plat/mediatek/mt8195/drivers/spmc/mtspmc.c b/plat/mediatek/mt8195/drivers/spmc/mtspmc.c new file mode 100644 index 0000000..9b332a0 --- /dev/null +++ b/plat/mediatek/mt8195/drivers/spmc/mtspmc.c @@ -0,0 +1,166 @@ +/* + * Copyright (c) 2020, MediaTek Inc. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <assert.h> + +#include <common/debug.h> +#include <drivers/delay_timer.h> +#include <lib/mmio.h> + +#include <mcucfg.h> +#include <mtspmc.h> +#include <mtspmc_private.h> + + +void mcucfg_disable_gic_wakeup(unsigned int cluster, unsigned int cpu) +{ + mmio_setbits_32(MCUCFG_CPC_FLOW_CTRL_CFG, GIC_WAKEUP_IGNORE(cpu)); +} + +void mcucfg_enable_gic_wakeup(unsigned int cluster, unsigned int cpu) +{ + mmio_clrbits_32(MCUCFG_CPC_FLOW_CTRL_CFG, GIC_WAKEUP_IGNORE(cpu)); +} + +void mcucfg_set_bootaddr(unsigned int cluster, unsigned int cpu, uintptr_t bootaddr) +{ + assert(cluster == 0U); + + mmio_write_32(per_cpu(cluster, cpu, MCUCFG_BOOTADDR), bootaddr); +} + +uintptr_t mcucfg_get_bootaddr(unsigned int cluster, unsigned int cpu) +{ + assert(cluster == 0U); + + return (uintptr_t)mmio_read_32(per_cpu(cluster, cpu, MCUCFG_BOOTADDR)); +} + +void mcucfg_init_archstate(unsigned int cluster, unsigned int cpu, bool arm64) +{ + uint32_t reg; + + assert(cluster == 0U); + + reg = per_cluster(cluster, MCUCFG_INITARCH); + + if (arm64) { + mmio_setbits_32(reg, MCUCFG_INITARCH_CPU_BIT(cpu)); + } else { + mmio_clrbits_32(reg, MCUCFG_INITARCH_CPU_BIT(cpu)); + } +} + +/** + * Return subsystem's power state. + * + * @mask: mask to MCUCFG_CPC_SPMC_PWR_STATUS to query the power state + * of one subsystem. + * RETURNS: + * 0 (the subsys was powered off) + * 1 (the subsys was powered on) + */ +bool spm_get_powerstate(uint32_t mask) +{ + return (mmio_read_32(MCUCFG_CPC_SPMC_PWR_STATUS) & mask) != 0U; +} + +bool spm_get_cluster_powerstate(unsigned int cluster) +{ + assert(cluster == 0U); + + return spm_get_powerstate(BIT(14)); +} + +bool spm_get_cpu_powerstate(unsigned int cluster, unsigned int cpu) +{ + uint32_t mask = BIT(cpu); + + assert(cluster == 0U); + + return spm_get_powerstate(mask); +} + +int spmc_init(void) +{ + INFO("SPM: enable CPC mode\n"); + + mmio_write_32(SPM_POWERON_CONFIG_EN, PROJECT_CODE | BCLK_CG_EN); + + mmio_setbits_32(per_cpu(0, 1, SPM_CPU_PWR), PWR_RST_B); + mmio_setbits_32(per_cpu(0, 2, SPM_CPU_PWR), PWR_RST_B); + mmio_setbits_32(per_cpu(0, 3, SPM_CPU_PWR), PWR_RST_B); + mmio_setbits_32(per_cpu(0, 4, SPM_CPU_PWR), PWR_RST_B); + mmio_setbits_32(per_cpu(0, 5, SPM_CPU_PWR), PWR_RST_B); + mmio_setbits_32(per_cpu(0, 6, SPM_CPU_PWR), PWR_RST_B); + mmio_setbits_32(per_cpu(0, 7, SPM_CPU_PWR), PWR_RST_B); + + mmio_clrbits_32(SPM_MCUSYS_PWR_CON, RESETPWRON_CONFIG); + mmio_clrbits_32(SPM_MP0_CPUTOP_PWR_CON, RESETPWRON_CONFIG); + mmio_clrbits_32(per_cpu(0, 0, SPM_CPU_PWR), RESETPWRON_CONFIG); + + mmio_setbits_32(MCUCFG_CPC_FLOW_CTRL_CFG, CPC_CTRL_ENABLE); + mmio_setbits_32(MCUCFG_CPC_FLOW_CTRL_CFG, SSPM_CORE_PWR_ON_EN); + + return 0; +} + +/** + * Power on a core with specified cluster and core index + * + * @cluster: the cluster ID of the CPU which to be powered on + * @cpu: the CPU ID of the CPU which to be powered on + */ +void spm_poweron_cpu(unsigned int cluster, unsigned int cpu) +{ + uintptr_t cpu_pwr_con = per_cpu(cluster, cpu, SPM_CPU_PWR); + + /* set to 0 after BIG VPROC bulk on & before B-core power on seq. */ + if (cpu >= 4U) { + mmio_write_32(DREQ20_BIG_VPROC_ISO, 0U); + } + + mmio_setbits_32(cpu_pwr_con, PWR_ON); + + while (!spm_get_cpu_powerstate(cluster, cpu)) { + mmio_clrbits_32(cpu_pwr_con, PWR_ON); + mmio_setbits_32(cpu_pwr_con, PWR_ON); + } +} + +/** + * Power off a core with specified cluster and core index + * + * @cluster: the cluster ID of the CPU which to be powered off + * @cpu: the CPU ID of the CPU which to be powered off + */ +void spm_poweroff_cpu(unsigned int cluster, unsigned int cpu) +{ + /* Set mp0_spmc_pwr_on_cpuX = 0 */ + mmio_clrbits_32(per_cpu(cluster, cpu, SPM_CPU_PWR), PWR_ON); +} + +/** + * Power off a cluster with specified index + * + * @cluster: the cluster index which to be powered off + */ +void spm_poweroff_cluster(unsigned int cluster) +{ + /* No need to power on/off cluster on single cluster platform */ + assert(false); +} + +/** + * Power on a cluster with specified index + * + * @cluster: the cluster index which to be powered on + */ +void spm_poweron_cluster(unsigned int cluster) +{ + /* No need to power on/off cluster on single cluster platform */ + assert(false); +} diff --git a/plat/mediatek/mt8195/drivers/spmc/mtspmc.h b/plat/mediatek/mt8195/drivers/spmc/mtspmc.h new file mode 100644 index 0000000..34e93d0 --- /dev/null +++ b/plat/mediatek/mt8195/drivers/spmc/mtspmc.h @@ -0,0 +1,31 @@ +/* + * Copyright (c) 2020, MediaTek Inc. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef MTSPMC_H +#define MTSPMC_H + +#include <stdint.h> + +int spmc_init(void); + +void spm_poweron_cpu(unsigned int cluster, unsigned int cpu); +void spm_poweroff_cpu(unsigned int cluster, unsigned int cpu); + +void spm_poweroff_cluster(unsigned int cluster); +void spm_poweron_cluster(unsigned int cluster); + +bool spm_get_cpu_powerstate(unsigned int cluster, unsigned int cpu); +bool spm_get_cluster_powerstate(unsigned int cluster); +bool spm_get_powerstate(uint32_t mask); + +void mcucfg_init_archstate(unsigned int cluster, unsigned int cpu, bool arm64); +void mcucfg_set_bootaddr(unsigned int cluster, unsigned int cpu, uintptr_t bootaddr); +uintptr_t mcucfg_get_bootaddr(unsigned int cluster, unsigned int cpu); + +void mcucfg_disable_gic_wakeup(unsigned int cluster, unsigned int cpu); +void mcucfg_enable_gic_wakeup(unsigned int cluster, unsigned int cpu); + +#endif /* MTSPMC_H */ diff --git a/plat/mediatek/mt8195/drivers/spmc/mtspmc_private.h b/plat/mediatek/mt8195/drivers/spmc/mtspmc_private.h new file mode 100644 index 0000000..bf4092e --- /dev/null +++ b/plat/mediatek/mt8195/drivers/spmc/mtspmc_private.h @@ -0,0 +1,183 @@ +/* + * Copyright (c) 2020, MediaTek Inc. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef MTSPMC_PRIVATE_H +#define MTSPMC_PRIVATE_H + +#include <lib/utils_def.h> +#include <platform_def.h> + +unsigned long read_cpuectlr(void); +void write_cpuectlr(unsigned long cpuectlr); + +unsigned long read_cpupwrctlr_el1(void); +void write_cpupwrctlr_el1(unsigned long cpuectlr); + +/* + * per_cpu/cluster helper + */ +struct per_cpu_reg { + unsigned int cluster_addr; + unsigned int cpu_stride; +}; + +#define per_cpu(cluster, cpu, reg) \ + (reg[cluster].cluster_addr + (cpu << reg[cluster].cpu_stride)) + +#define per_cluster(cluster, reg) (reg[cluster].cluster_addr) + +#define SPM_REG(ofs) (uint32_t)(SPM_BASE + (ofs)) +#define MCUCFG_REG(ofs) (uint32_t)(MCUCFG_BASE + (ofs)) +#define INFRACFG_AO_REG(ofs) (uint32_t)(INFRACFG_AO_BASE + (ofs)) + +/* === SPMC related registers */ +#define SPM_POWERON_CONFIG_EN SPM_REG(0x000) +/* bit-fields of SPM_POWERON_CONFIG_EN */ +#define PROJECT_CODE (U(0xb16) << 16) +#define BCLK_CG_EN BIT(0) + +#define SPM_PWR_STATUS SPM_REG(0x16c) +#define SPM_PWR_STATUS_2ND SPM_REG(0x170) +#define SPM_CPU_PWR_STATUS SPM_REG(0x174) + +/* bit-fields of SPM_PWR_STATUS */ +#define MD BIT(0) +#define CONN BIT(1) +#define DDRPHY BIT(2) +#define DISP BIT(3) +#define MFG BIT(4) +#define ISP BIT(5) +#define INFRA BIT(6) +#define VDEC BIT(7) +#define MP0_CPUTOP BIT(8) +#define MP0_CPU0 BIT(9) +#define MP0_CPU1 BIT(10) +#define MP0_CPU2 BIT(11) +#define MP0_CPU3 BIT(12) +#define MCUSYS BIT(14) +#define MP0_CPU4 BIT(15) +#define MP0_CPU5 BIT(16) +#define MP0_CPU6 BIT(17) +#define MP0_CPU7 BIT(18) +#define VEN BIT(21) + +/* === SPMC related registers */ +#define SPM_MCUSYS_PWR_CON MCUCFG_REG(0xd200) +#define SPM_MP0_CPUTOP_PWR_CON MCUCFG_REG(0xd204) +#define SPM_MP0_CPU0_PWR_CON MCUCFG_REG(0xd208) +#define SPM_MP0_CPU1_PWR_CON MCUCFG_REG(0xd20c) +#define SPM_MP0_CPU2_PWR_CON MCUCFG_REG(0xd210) +#define SPM_MP0_CPU3_PWR_CON MCUCFG_REG(0xd214) +#define SPM_MP0_CPU4_PWR_CON MCUCFG_REG(0xd218) +#define SPM_MP0_CPU5_PWR_CON MCUCFG_REG(0xd21c) +#define SPM_MP0_CPU6_PWR_CON MCUCFG_REG(0xd220) +#define SPM_MP0_CPU7_PWR_CON MCUCFG_REG(0xd224) + +/* bit fields of SPM_*_PWR_CON */ +#define PWR_ON_ACK BIT(31) +#define VPROC_EXT_OFF BIT(7) +#define DORMANT_EN BIT(6) +#define RESETPWRON_CONFIG BIT(5) +#define PWR_CLK_DIS BIT(4) +#define PWR_ON BIT(2) +#define PWR_RST_B BIT(0) + +/**** per_cpu registers for SPM_MP0_CPU?_PWR_CON */ +static const struct per_cpu_reg SPM_CPU_PWR[] = { + { .cluster_addr = SPM_MP0_CPU0_PWR_CON, .cpu_stride = 2U } +}; + +/**** per_cluster registers for SPM_MP0_CPUTOP_PWR_CON */ +static const struct per_cpu_reg SPM_CLUSTER_PWR[] = { + { .cluster_addr = SPM_MP0_CPUTOP_PWR_CON, .cpu_stride = 0U } +}; + +/* === MCUCFG related registers */ +/* aa64naa32 */ +#define MCUCFG_MP0_CLUSTER_CFG5 MCUCFG_REG(0xc8e4) +/* reset vectors */ +#define MCUCFG_MP0_CLUSTER_CFG8 MCUCFG_REG(0xc900) +#define MCUCFG_MP0_CLUSTER_CFG10 MCUCFG_REG(0xc908) +#define MCUCFG_MP0_CLUSTER_CFG12 MCUCFG_REG(0xc910) +#define MCUCFG_MP0_CLUSTER_CFG14 MCUCFG_REG(0xc918) +#define MCUCFG_MP0_CLUSTER_CFG16 MCUCFG_REG(0xc920) +#define MCUCFG_MP0_CLUSTER_CFG18 MCUCFG_REG(0xc928) +#define MCUCFG_MP0_CLUSTER_CFG20 MCUCFG_REG(0xc930) +#define MCUCFG_MP0_CLUSTER_CFG22 MCUCFG_REG(0xc938) + +/* MCUSYS DREQ BIG VPROC ISO control */ +#define DREQ20_BIG_VPROC_ISO MCUCFG_REG(0xad8c) + +/**** per_cpu registers for MCUCFG_MP0_CLUSTER_CFG? */ +static const struct per_cpu_reg MCUCFG_BOOTADDR[] = { + { .cluster_addr = MCUCFG_MP0_CLUSTER_CFG8, .cpu_stride = 3U } +}; + +/**** per_cpu registers for MCUCFG_MP0_CLUSTER_CFG5 */ +static const struct per_cpu_reg MCUCFG_INITARCH[] = { + { .cluster_addr = MCUCFG_MP0_CLUSTER_CFG5, .cpu_stride = 0U } +}; + +#define MCUCFG_INITARCH_CPU_BIT(cpu) BIT(16U + cpu) +/* === CPC control */ +#define MCUCFG_CPC_FLOW_CTRL_CFG MCUCFG_REG(0xa814) +#define MCUCFG_CPC_SPMC_PWR_STATUS MCUCFG_REG(0xa840) + +/* bit fields of CPC_FLOW_CTRL_CFG */ +#define CPC_CTRL_ENABLE BIT(16) +#define SSPM_CORE_PWR_ON_EN BIT(7) /* for cpu-hotplug */ +#define SSPM_ALL_PWR_CTRL_EN BIT(13) /* for cpu-hotplug */ +#define GIC_WAKEUP_IGNORE(cpu) BIT(21 + cpu) + +/* bit fields of CPC_SPMC_PWR_STATUS */ +#define CORE_SPMC_PWR_ON_ACK GENMASK(11, 0) + +/* === APB Module infracfg_ao */ +#define INFRA_TOPAXI_PROTECTEN INFRACFG_AO_REG(0x0220) +#define INFRA_TOPAXI_PROTECTEN_STA0 INFRACFG_AO_REG(0x0224) +#define INFRA_TOPAXI_PROTECTEN_STA1 INFRACFG_AO_REG(0x0228) +#define INFRA_TOPAXI_PROTECTEN_SET INFRACFG_AO_REG(0x02a0) +#define INFRA_TOPAXI_PROTECTEN_CLR INFRACFG_AO_REG(0x02a4) +#define INFRA_TOPAXI_PROTECTEN_1 INFRACFG_AO_REG(0x0250) +#define INFRA_TOPAXI_PROTECTEN_STA0_1 INFRACFG_AO_REG(0x0254) +#define INFRA_TOPAXI_PROTECTEN_STA1_1 INFRACFG_AO_REG(0x0258) +#define INFRA_TOPAXI_PROTECTEN_1_SET INFRACFG_AO_REG(0x02a8) +#define INFRA_TOPAXI_PROTECTEN_1_CLR INFRACFG_AO_REG(0x02ac) + +/* bit fields of INFRA_TOPAXI_PROTECTEN */ +#define MP0_SPMC_PROT_STEP1_0_MASK BIT(12) +#define MP0_SPMC_PROT_STEP1_1_MASK (BIT(26) | BIT(12)) + +/* === SPARK */ +#define VOLTAGE_04 U(0x40) +#define VOLTAGE_05 U(0x60) + +#define PTP3_CPU0_SPMC_SW_CFG MCUCFG_REG(0x200) +#define CPU0_ILDO_CONTROL5 MCUCFG_REG(0x334) +#define CPU0_ILDO_CONTROL8 MCUCFG_REG(0x340) + +/* bit fields of CPU0_ILDO_CONTROL5 */ +#define ILDO_RET_VOSEL GENMASK(7, 0) + +/* bit fields of PTP3_CPU_SPMC_SW_CFG */ +#define SW_SPARK_EN BIT(0) + +/* bit fields of CPU0_ILDO_CONTROL8 */ +#define ILDO_BYPASS_B BIT(0) + +static const struct per_cpu_reg MCUCFG_SPARK[] = { + { .cluster_addr = PTP3_CPU0_SPMC_SW_CFG, .cpu_stride = 11U } +}; + +static const struct per_cpu_reg ILDO_CONTROL5[] = { + { .cluster_addr = CPU0_ILDO_CONTROL5, .cpu_stride = 11U } +}; + +static const struct per_cpu_reg ILDO_CONTROL8[] = { + { .cluster_addr = CPU0_ILDO_CONTROL8, .cpu_stride = 11U } +}; + +#endif /* MTSPMC_PRIVATE_H */ |