308 lines
7.4 KiB
C
308 lines
7.4 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2020 MediaTek Inc.
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*/
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#ifndef __SCP_HELPER_H__
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#define __SCP_HELPER_H__
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#include <linux/arm-smccc.h>
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#include <linux/notifier.h>
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#include <linux/interrupt.h>
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#include <linux/io.h>
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#include <linux/soc/mediatek/mtk_sip_svc.h>
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#include "scp_reg.h"
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#include "scp_feature_define.h"
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#include "scp.h"
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#define ROUNDUP(a, b) (((a) + ((b)-1)) & ~((b)-1))
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/* scp config reg. definition*/
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#define SCP_TCM_SIZE (scpreg.total_tcmsize)
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#define SCP_A_TCM_SIZE (scpreg.scp_tcmsize)
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#define SCP_TCM (scpreg.sram)
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#define SCP_REGION_INFO_OFFSET 0x4
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#define SCP_RTOS_START (0x800)
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#define SCP_DRAM_MAPSIZE (0x100000)
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/* scp dvfs return status flag */
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#define SET_PLL_FAIL (1)
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#define SET_PMIC_VOLT_FAIL (2)
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#define mt_reg_sync_writel(v, a) \
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do { \
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__raw_writel((v), (void __force __iomem *)((a))); \
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mb(); /*make sure register access in order */ \
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} while (0)
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/* This structre need to sync with SCP-side */
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struct SCP_IRQ_AST_INFO {
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unsigned int scp_irq_ast_time;
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unsigned int scp_irq_ast_pc_s;
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unsigned int scp_irq_ast_pc_e;
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unsigned int scp_irq_ast_lr_s;
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unsigned int scp_irq_ast_lr_e;
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unsigned int scp_irq_ast_irqd;
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};
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/* reset ID */
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#define SCP_ALL_ENABLE 0x00
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#define SCP_ALL_REBOOT 0x01
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/* scp semaphore definition*/
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enum SEMAPHORE_FLAG {
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SEMAPHORE_CLK_CFG_5 = 0,
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SEMAPHORE_PTP,
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SEMAPHORE_I2C0,
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SEMAPHORE_I2C1,
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SEMAPHORE_TOUCH,
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SEMAPHORE_APDMA,
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SEMAPHORE_SENSOR,
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SEMAPHORE_SCP_A_AWAKE,
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SEMAPHORE_SCP_B_AWAKE,
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NR_FLAG = 9,
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};
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/* scp semaphore 3way definition */
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enum SEMAPHORE_3WAY_FLAG {
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SEMA_SCP_3WAY_UART = 0,
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SEMA_SCP_3WAY_C2C_A = 1,
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SEMA_SCP_3WAY_C2C_B = 2,
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SEMA_SCP_3WAY_DVFS = 3,
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SEMA_SCP_3WAY_AUDIO = 4,
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SEMA_SCP_3WAY_AUDIOREG = 5,
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SEMA_SCP_3WAY_NUM = 6,
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};
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/* scp semaphore status */
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enum SEMAPHORE_STATUS {
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SEMAPHORE_NOT_INIT = -1,
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SEMAPHORE_FAIL = 0,
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SEMAPHORE_SUCCESS = 1,
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};
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/* scp reset status */
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enum SCP_RESET_STATUS {
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RESET_STATUS_STOP = 0,
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RESET_STATUS_START = 1,
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/* this state mean scp already kick reboot, if wdt trigger before
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* recovery finish mean recovery fail, should retry again
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*/
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RESET_STATUS_START_KICK = 2,
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RESET_STATUS_START_WDT = 3,
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};
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/* scp reset status */
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enum SCP_RESET_TYPE {
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RESET_TYPE_WDT = 0,
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RESET_TYPE_AWAKE = 1,
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RESET_TYPE_CMD = 2,
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RESET_TYPE_TIMEOUT = 3,
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};
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struct scp_bus_tracker_status {
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u32 dbg_con;
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u32 dbg_r[32];
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u32 dbg_w[32];
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};
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struct scp_regs {
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void __iomem *scpsys;
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void __iomem *sram;
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void __iomem *cfg;
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void __iomem *clkctrl;
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void __iomem *l1cctrl;
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void __iomem *cfg_core0;
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void __iomem *cfg_core1;
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void __iomem *cfg_sec;
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void __iomem *bus_tracker;
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int irq0;
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int irq1;
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unsigned int total_tcmsize;
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unsigned int cfgregsize;
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unsigned int scp_tcmsize;
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unsigned int core_nums;
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unsigned int twohart;
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unsigned int secure_dump;
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struct scp_bus_tracker_status tracker_status;
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};
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/* scp work struct definition*/
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struct scp_work_struct {
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struct work_struct work;
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unsigned int flags;
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unsigned int id;
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};
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struct scp_reserve_mblock {
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enum scp_reserve_mem_id_t num;
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u64 start_phys;
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u64 start_virt;
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u64 size;
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};
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struct scp_region_info_st {
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uint32_t ap_loader_start;
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uint32_t ap_loader_size;
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uint32_t ap_firmware_start;
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uint32_t ap_firmware_size;
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uint32_t ap_dram_start;
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uint32_t ap_dram_size;
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uint32_t ap_dram_backup_start;
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/* This is the size of the structure.
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* It can act as a version number if entries can only be
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* added to (not deleted from) the structure.
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* It should be the first entry of the structure, but for
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* compatibility reason, it is appended here.
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*/
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uint32_t struct_size;
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uint32_t scp_log_thru_ap_uart;
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uint32_t TaskContext_ptr;
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uint32_t scpctl;
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uint32_t regdump_start;
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uint32_t regdump_size;
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uint32_t ap_params_start;
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};
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/* scp device attribute */
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extern struct device_attribute dev_attr_scp_A_mobile_log_UT;
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extern struct device_attribute dev_attr_scp_A_logger_wakeup_AP;
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extern const struct file_operations scp_A_log_file_ops;
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extern struct scp_regs scpreg;
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extern struct device_attribute dev_attr_scp_mobile_log;
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extern struct device_attribute dev_attr_scp_A_get_last_log;
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extern struct device_attribute dev_attr_scp_A_status;
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extern struct device_attribute dev_attr_log_filter;
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extern struct bin_attribute bin_attr_scp_dump;
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/* scp loggger */
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extern int scp_logger_init(phys_addr_t start, phys_addr_t limit);
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extern void scp_logger_uninit(void);
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extern void scp_logger_stop(void);
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extern void scp_logger_cleanup(void);
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/* scp exception */
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int scp_excep_init(void);
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void scp_ram_dump_init(void);
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void scp_excep_cleanup(void);
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void scp_reset_wait_timeout(void);
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/* scp irq */
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extern irqreturn_t scp_A_irq_handler(int irq, void *dev_id);
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extern void scp_A_irq_init(void);
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/* scp helper */
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extern void scp_schedule_work(struct scp_work_struct *scp_ws);
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extern void scp_schedule_logger_work(struct scp_work_struct *scp_ws);
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extern void memcpy_to_scp(void __iomem *trg,
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const void *src, int size);
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extern void memcpy_from_scp(void *trg, const void __iomem *src,
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int size);
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extern int reset_scp(int reset);
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extern int scp_check_resource(void);
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void set_scp_mpu(void);
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extern phys_addr_t scp_mem_base_phys;
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extern phys_addr_t scp_mem_base_virt;
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extern phys_addr_t scp_mem_size;
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extern atomic_t scp_reset_status;
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extern bool mbox_check_send_table(unsigned int id);
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extern bool mbox_check_recv_table(unsigned int id);
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extern void mbox_setup_pin_table(int mbox);
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extern void mt_print_scp_ipi_id(unsigned int irq_no);
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#ifdef CONFIG_MTK_GIC_V3_EXT
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extern u32 mt_irq_get_pending(unsigned int irq);
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#endif
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/*extern scp notify*/
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extern void scp_send_reset_wq(enum SCP_RESET_TYPE type);
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extern void scp_extern_notify(enum SCP_NOTIFY_EVENT notify_status);
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extern void scp_status_set(unsigned int value);
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extern void scp_logger_init_set(unsigned int value);
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extern unsigned int scp_set_reset_status(void);
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extern void scp_enable_sram(void);
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extern int scp_sys_full_reset(void);
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extern void scp_reset_awake_counts(void);
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extern void scp_awake_init(void);
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extern unsigned int mt_get_abist_freq(unsigned int ID);
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#if SCP_RECOVERY_SUPPORT
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extern unsigned int scp_reset_by_cmd;
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extern struct scp_region_info_st scp_region_info_copy;
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extern struct scp_region_info_st *scp_region_info;
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extern void __iomem *scp_ap_dram_virt;
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extern void __iomem *scp_loader_virt;
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extern void __iomem *scp_regdump_virt;
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extern struct tasklet_struct scp_A_irq0_tasklet;
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extern struct tasklet_struct scp_A_irq1_tasklet;
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#endif
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enum MTK_TINYSYS_SCP_KERNEL_OP {
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MTK_TINYSYS_SCP_KERNEL_OP_DUMP_START = 0,
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MTK_TINYSYS_SCP_KERNEL_OP_DUMP_POLLING,
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MTK_TINYSYS_SCP_KERNEL_OP_RESET_SET,
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MTK_TINYSYS_SCP_KERNEL_OP_RESET_RELEASE,
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MTK_TINYSYS_SCP_KERNEL_OP_RESTORE_L2TCM,
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MTK_TINYSYS_SCP_KERNEL_OP_RESTORE_DRAM,
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MTK_TINYSYS_SCP_KERNEL_OP_WDT_SET,
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MTK_TINYSYS_SCP_KERNEL_OP_HALT_SET,
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MTK_TINYSYS_SCP_KERNEL_OP_WDT_CLEAR,
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MTK_TINYSYS_SCP_KERNEL_OP_NUM,
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};
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#if SCP_RESERVED_MEM && IS_ENABLED(CONFIG_OF_RESERVED_MEM)
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static inline unsigned long scp_do_dump(void)
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{
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return 0;
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}
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static inline unsigned long scp_do_polling(void)
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{
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return 0;
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}
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static inline uint64_t scp_do_rstn_set(uint64_t boot_ok)
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{
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return 0;
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}
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static inline uint64_t scp_do_rstn_clr(void)
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{
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return 0;
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}
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static inline unsigned long scp_restore_l2tcm(void)
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{
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return 0;
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}
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static inline unsigned long scp_restore_dram(void)
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{
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return 0;
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}
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static inline uint64_t scp_do_wdt_set(uint64_t coreid)
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{
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return 0;
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}
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static inline uint64_t scp_do_halt_set(void)
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{
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return 0;
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}
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static inline uint64_t scp_do_wdt_clear(uint64_t coreid)
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{
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return 0;
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}
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#endif
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#endif
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