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// SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
/*
* Copyright (c) 2024 Beijing ESWIN Computing Technology Co., Ltd.
*
* Authors:
* Lin Min <linmin@eswincomputing.com>
* Bo Gan <ganboing@gmail.com>
*
* Adapted from Core/Inc/hf_common.h from ESWIN's Hifive Premier P550
* onboard BMC (MCU) source repo:
* https://github.com/eswincomputing/hifive-premier-p550-mcu-patches.git
*
*/
#ifndef __ESWIN_HFP_H__
#define __ESWIN_HFP_H__
#include <sbi/sbi_types.h>
enum hfp_bmc_msg {
HFP_MSG_REQUEST = 1,
HFP_MSG_REPLY,
HFP_MSG_NOTIFY,
};
enum hfp_bmc_cmd {
HFP_CMD_POWER_OFF = 1,
HFP_CMD_REBOOT,
HFP_CMD_READ_BOARD_INFO,
HFP_CMD_CONTROL_LED,
HFP_CMD_PVT_INFO,
HFP_CMD_BOARD_STATUS,
HFP_CMD_POWER_INFO,
HFP_CMD_RESTART, // cold reboot with power off/on
};
#define MAGIC_HEADER 0xA55AAA55
#define MAGIC_TAIL 0xBDBABDBA
struct hfp_bmc_message {
uint32_t header_magic;
uint32_t task_id;
uint8_t type;
uint8_t cmd;
uint8_t result;
uint8_t data_len;
uint8_t data[250];
uint8_t checksum;
uint32_t tail_magic;
} __packed;
static inline void hfp_bmc_checksum_msg(struct hfp_bmc_message *msg)
{
msg->checksum = 0;
msg->checksum ^= msg->type;
msg->checksum ^= msg->cmd;
msg->checksum ^= msg->data_len;
for (uint8_t i = 0; i != msg->data_len; i++)
msg->checksum ^= msg->data[i];
}
extern const struct eic770x_board_override hfp_override;
#endif
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