/*
* Copyright (c) 2019-2020, Intel Corporation. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef SOCFPGA_MBOX_H
#define SOCFPGA_MBOX_H
#include <lib/utils_def.h>
#define MBOX_OFFSET 0xffa30000
#define MBOX_ATF_CLIENT_ID 0x1U
#define MBOX_MAX_JOB_ID 0xFU
#define MBOX_MAX_IND_JOB_ID (MBOX_MAX_JOB_ID - 1U)
#define MBOX_JOB_ID MBOX_MAX_JOB_ID
/* Mailbox Shared Memory Register Map */
#define MBOX_CIN 0x00
#define MBOX_ROUT 0x04
#define MBOX_URG 0x08
#define MBOX_INT 0x0C
#define MBOX_COUT 0x20
#define MBOX_RIN 0x24
#define MBOX_STATUS 0x2C
#define MBOX_CMD_BUFFER 0x40
#define MBOX_RESP_BUFFER 0xC0
/* Mailbox SDM doorbell */
#define MBOX_DOORBELL_TO_SDM 0x400
#define MBOX_DOORBELL_FROM_SDM 0x480
/* Mailbox commands */
#define MBOX_CMD_NOOP 0x00
#define MBOX_CMD_SYNC 0x01
#define MBOX_CMD_RESTART 0x02
#define MBOX_CMD_CANCEL 0x03
#define MBOX_CMD_GET_IDCODE 0x10
#define MBOX_CMD_REBOOT_HPS 0x47
/* Reconfiguration Commands */
#define MBOX_CONFIG_STATUS 0x04
#define MBOX_RECONFIG 0x06
#define MBOX_RECONFIG_DATA 0x08
#define MBOX_RECONFIG_STATUS 0x09
/* QSPI Commands */
#define MBOX_CMD_QSPI_OPEN 0x32
#define MBOX_CMD_QSPI_CLOSE 0x33
#define MBOX_CMD_QSPI_SET_CS 0x34
#define MBOX_CMD_QSPI_DIRECT 0x3B
/* RSU Commands */
#define MBOX_GET_SUBPARTITION_TABLE 0x5A
#define MBOX_RSU_STATUS 0x5B
#define MBOX_RSU_UPDATE 0x5C
#define MBOX_HPS_STAGE_NOTIFY 0x5D
/* Mailbox Definitions */
#define CMD_DIRECT 0
#define CMD_INDIRECT 1
#define CMD_CASUAL 0
#define CMD_URGENT 1
#define MBOX_RESP_BUFFER_SIZE 16
#define MBOX_CMD_BUFFER_SIZE 32
/* Execution states for HPS_STAGE_NOTIFY */
#define HPS_EXECUTION_STATE_FSBL 0
#define HPS_EXECUTION_STATE_SSBL 1
#define HPS_EXECUTION_STATE_OS 2
/* Status Response */
#define MBOX_RET_OK 0
#define MBOX_RET_ERROR -1
#define MBOX_NO_RESPONSE -2
#define MBOX_WRONG_ID -3
#define MBOX_BUFFER_FULL -4
#define MBOX_TIMEOUT -2047
/* Reconfig Status Response */
#define RECONFIG_STATUS_STATE 0
#define RECONFIG_STATUS_PIN_STATUS 2
#define RECONFIG_STATUS_SOFTFUNC_STATUS 3
#define PIN_STATUS_NSTATUS (U(1) << 31)
#define SOFTFUNC_STATUS_SEU_ERROR (1 << 3)
#define SOFTFUNC_STATUS_INIT_DONE (1 << 1)
#define SOFTFUNC_STATUS_CONF_DONE (1 << 0)
#define MBOX_CFGSTAT_STATE_IDLE 0x00000000
#define MBOX_CFGSTAT_STATE_CONFIG 0x10000000
#define MBOX_CFGSTAT_STATE_FAILACK 0x08000000
#define MBOX_CFGSTAT_STATE_ERROR_INVALID 0xf0000001
#define MBOX_CFGSTAT_STATE_ERROR_CORRUPT 0xf0000002
#define MBOX_CFGSTAT_STATE_ERROR_AUTH 0xf0000003
#define MBOX_CFGSTAT_STATE_ERROR_CORE_IO 0xf0000004
#define MBOX_CFGSTAT_STATE_ERROR_HARDWARE 0xf0000005
#define MBOX_CFGSTAT_STATE_ERROR_FAKE 0xf0000006
#define MBOX_CFGSTAT_STATE_ERROR_BOOT_INFO 0xf0000007
#define MBOX_CFGSTAT_STATE_ERROR_QSPI_ERROR 0xf0000008
/* Mailbox Macros */
/* Mailbox interrupt flags and masks */
#define MBOX_INT_FLAG_COE 0x1
#define MBOX_INT_FLAG_RIE 0x2
#define MBOX_INT_FLAG_UAE 0x100
#define MBOX_COE_BIT(INTERRUPT) ((INTERRUPT) & 0x3)
#define MBOX_UAE_BIT(INTERRUPT) (((INTERRUPT) & (1<<8)))
/* Mailbox response and status */
#define MBOX_RESP_ERR(BUFFER) ((BUFFER) & 0x00000fff)
#define MBOX_RESP_LEN(BUFFER) (((BUFFER) & 0x007ff000) >> 12)
#define MBOX_RESP_CLIENT_ID(BUFFER) (((BUFFER) & 0xf0000000) >> 28)
#define MBOX_RESP_JOB_ID(BUFFER) (((BUFFER) & 0x0f000000) >> 24)
#define MBOX_STATUS_UA_MASK (1<<8)
/* Mailbox command and response */
#define MBOX_CLIENT_ID_CMD(CLIENT_ID) ((CLIENT_ID) << 28)
#define MBOX_JOB_ID_CMD(JOB_ID) (JOB_ID<<24)
#define MBOX_CMD_LEN_CMD(CMD_LEN) ((CMD_LEN) << 12)
#define MBOX_INDIRECT(val) ((val) << 11)
#define MBOX_CMD_MASK(header) ((header) & 0x7ff)
/* RSU Macros */
#define RSU_VERSION_ACMF BIT(8)
#define RSU_VERSION_ACMF_MASK 0xff00
/* Mailbox Function Definitions */
void mailbox_set_int(int interrupt_input);
int mailbox_init(void);
void mailbox_set_qspi_close(void);
void mailbox_set_qspi_open(void);
void mailbox_set_qspi_direct(void);
int mailbox_send_cmd(uint32_t job_id, unsigned int cmd, uint32_t *args,
int len, int urgent, uint32_t *response, int resp_len);
int mailbox_send_cmd_async(uint32_t *job_id, unsigned int cmd, uint32_t *args,
int len, int indirect);
int mailbox_read_response(uint32_t *job_id, uint32_t *response, int resp_len);
int iterate_resp(int mbox_resp_len, uint32_t *resp_buf, int resp_len);
void mailbox_reset_cold(void);
void mailbox_clear_response(void);
int intel_mailbox_get_config_status(uint32_t cmd);
int intel_mailbox_is_fpga_not_ready(void);
int mailbox_rsu_get_spt_offset(uint32_t *resp_buf, uint32_t resp_buf_len);
int mailbox_rsu_status(uint32_t *resp_buf, uint32_t resp_buf_len);
int mailbox_rsu_update(uint32_t *flash_offset);
int mailbox_hps_stage_notify(uint32_t execution_stage);
#endif /* SOCFPGA_MBOX_H */
