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/* SPDX-License-Identifier: GPL-2.0
*
* Copyright (C) 2017-2018 Intel Corporation <www.intel.com>
*
*/
#ifndef _MAILBOX_S10_H_
#define _MAILBOX_S10_H_
/* user define Uboot ID */
#define MBOX_CLIENT_ID_UBOOT 0xB
#define MBOX_ID_UBOOT 0x1
#define MBOX_CMD_DIRECT 0
#define MBOX_CMD_INDIRECT 1
#define MBOX_MAX_CMD_INDEX 2047
#define MBOX_CMD_BUFFER_SIZE 32
#define MBOX_RESP_BUFFER_SIZE 16
#define MBOX_HDR_CMD_LSB 0
#define MBOX_HDR_CMD_MSK (BIT(11) - 1)
#define MBOX_HDR_I_LSB 11
#define MBOX_HDR_I_MSK BIT(11)
#define MBOX_HDR_LEN_LSB 12
#define MBOX_HDR_LEN_MSK 0x007FF000
#define MBOX_HDR_ID_LSB 24
#define MBOX_HDR_ID_MSK 0x0F000000
#define MBOX_HDR_CLIENT_LSB 28
#define MBOX_HDR_CLIENT_MSK 0xF0000000
/* Interrupt flags */
#define MBOX_FLAGS_INT_COE BIT(0) /* COUT update interrupt enable */
#define MBOX_FLAGS_INT_RIE BIT(1) /* RIN update interrupt enable */
#define MBOX_FLAGS_INT_UAE BIT(8) /* Urgent ACK interrupt enable */
#define MBOX_ALL_INTRS (MBOX_FLAGS_INT_COE | \
MBOX_FLAGS_INT_RIE | \
MBOX_FLAGS_INT_UAE)
/* Status */
#define MBOX_STATUS_UA_MSK BIT(8)
#define MBOX_CMD_HEADER(client, id, len, indirect, cmd) \
((((cmd) << MBOX_HDR_CMD_LSB) & MBOX_HDR_CMD_MSK) | \
(((indirect) << MBOX_HDR_I_LSB) & MBOX_HDR_I_MSK) | \
(((len) << MBOX_HDR_LEN_LSB) & MBOX_HDR_LEN_MSK) | \
(((id) << MBOX_HDR_ID_LSB) & MBOX_HDR_ID_MSK) | \
(((client) << MBOX_HDR_CLIENT_LSB) & MBOX_HDR_CLIENT_MSK))
#define MBOX_RESP_ERR_GET(resp) \
(((resp) & MBOX_HDR_CMD_MSK) >> MBOX_HDR_CMD_LSB)
#define MBOX_RESP_LEN_GET(resp) \
(((resp) & MBOX_HDR_LEN_MSK) >> MBOX_HDR_LEN_LSB)
#define MBOX_RESP_ID_GET(resp) \
(((resp) & MBOX_HDR_ID_MSK) >> MBOX_HDR_ID_LSB)
#define MBOX_RESP_CLIENT_GET(resp) \
(((resp) & MBOX_HDR_CLIENT_MSK) >> MBOX_HDR_CLIENT_LSB)
/* Response error list */
enum ALT_SDM_MBOX_RESP_CODE {
/* CMD completed successfully, but check resp ARGS for any errors */
MBOX_RESP_STATOK = 0,
/* CMD is incorrectly formatted in some way */
MBOX_RESP_INVALID_COMMAND = 1,
/* BootROM Command code not undesrtood */
MBOX_RESP_UNKNOWN_BR = 2,
/* CMD code not recognized by firmware */
MBOX_RESP_UNKNOWN = 3,
/* Indicates that the device is not configured */
MBOX_RESP_NOT_CONFIGURED = 256,
/* Indicates that the device is busy */
MBOX_RESP_DEVICE_BUSY = 0x1FF,
/* Indicates that there is no valid response available */
MBOX_RESP_NO_VALID_RESP_AVAILABLE = 0x2FF,
/* General Error */
MBOX_RESP_ERROR = 0x3FF,
};
/* Mailbox command list */
#define MBOX_RESTART 2
#define MBOX_CONFIG_STATUS 4
#define MBOX_RECONFIG 6
#define MBOX_RECONFIG_MSEL 7
#define MBOX_RECONFIG_DATA 8
#define MBOX_RECONFIG_STATUS 9
#define MBOX_QSPI_OPEN 50
#define MBOX_QSPI_CLOSE 51
#define MBOX_QSPI_DIRECT 59
#define MBOX_REBOOT_HPS 71
/* Mailbox registers */
#define MBOX_CIN 0 /* command valid offset */
#define MBOX_ROUT 4 /* response output offset */
#define MBOX_URG 8 /* urgent command */
#define MBOX_FLAGS 0x0c /* interrupt enables */
#define MBOX_COUT 0x20 /* command free offset */
#define MBOX_RIN 0x24 /* respond valid offset */
#define MBOX_STATUS 0x2c /* mailbox status */
#define MBOX_CMD_BUF 0x40 /* circular command buffer */
#define MBOX_RESP_BUF 0xc0 /* circular response buffer */
#define MBOX_DOORBELL_TO_SDM 0x400 /* Doorbell to SDM */
#define MBOX_DOORBELL_FROM_SDM 0x480 /* Doorbell from SDM */
/* Status and bit information returned by RECONFIG_STATUS */
#define RECONFIG_STATUS_RESPONSE_LEN 6
#define RECONFIG_STATUS_STATE 0
#define RECONFIG_STATUS_PIN_STATUS 2
#define RECONFIG_STATUS_SOFTFUNC_STATUS 3
/* Macros for specifying number of arguments in mailbox command */
#define MBOX_NUM_ARGS(n, b) (((n) & 0xFF) << (b))
#define MBOX_DIRECT_COUNT(n) MBOX_NUM_ARGS((n), 0)
#define MBOX_ARG_DESC_COUNT(n) MBOX_NUM_ARGS((n), 8)
#define MBOX_RESP_DESC_COUNT(n) MBOX_NUM_ARGS((n), 16)
#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
#define RCF_SOFTFUNC_STATUS_CONF_DONE BIT(0)
#define RCF_SOFTFUNC_STATUS_INIT_DONE BIT(1)
#define RCF_SOFTFUNC_STATUS_SEU_ERROR BIT(3)
#define RCF_PIN_STATUS_NSTATUS BIT(31)
int mbox_send_cmd(u8 id, u32 cmd, u8 is_indirect, u32 len, u32 *arg, u8 urgent,
u32 *resp_buf_len, u32 *resp_buf);
int mbox_send_cmd_psci(u8 id, u32 cmd, u8 is_indirect, u32 len, u32 *arg,
u8 urgent, u32 *resp_buf_len, u32 *resp_buf);
int mbox_send_cmd_only(u8 id, u32 cmd, u8 is_indirect, u32 len, u32 *arg);
int mbox_send_cmd_only_psci(u8 id, u32 cmd, u8 is_indirect, u32 len, u32 *arg);
int mbox_rcv_resp(u32 *resp_buf, u32 resp_buf_max_len);
int mbox_rcv_resp_psci(u32 *resp_buf, u32 resp_buf_max_len);
int mbox_init(void);
#ifdef CONFIG_CADENCE_QSPI
int mbox_qspi_close(void);
int mbox_qspi_open(void);
#endif
int mbox_reset_cold(void);
int mbox_get_fpga_config_status(u32 cmd);
int mbox_get_fpga_config_status_psci(u32 cmd);
#endif /* _MAILBOX_S10_H_ */
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