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  • /*
     * Copyright (C) 2013, Intel Corporation
     * Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
     *
     * SPDX-License-Identifier:	Intel
     */
    
    #ifndef __FSP_API_H__
    #define __FSP_API_H__
    
    
    #include <linux/linkage.h>
    
    
    /*
     * FspInit continuation function prototype.
     * Control will be returned to this callback function after FspInit API call.
     */
    typedef void (*fsp_continuation_f)(u32 status, void *hob_list);
    
    
    struct fsp_init_params {
    
    	/* Non-volatile storage buffer pointer */
    	void			*nvs_buf;
    	/* Runtime buffer pointer */
    	void			*rt_buf;
    	/* Continuation function address */
    	fsp_continuation_f	continuation;
    };
    
    
    struct common_buf {
    
    	/*
    	 * Stack top pointer used by the bootloader. The new stack frame will be
    	 * set up at this location after FspInit API call.
    	 */
    	u32	*stack_top;
    	u32	boot_mode;	/* Current system boot mode */
    	void	*upd_data;	/* User platform configuraiton data region */
    	u32	reserved[7];	/* Reserved */
    };
    
    
    enum fsp_phase {
    
    	/* Notification code for post PCI enuermation */
    	INIT_PHASE_PCI	= 0x20,
    	/* Notification code before transfering control to the payload */
    	INIT_PHASE_BOOT	= 0x40
    };
    
    
    struct fsp_notify_params {
    
    	/* Notification phase used for NotifyPhase API */
    
    	enum fsp_phase	phase;
    
    };
    
    /* FspInit API function prototype */
    
    typedef asmlinkage u32 (*fsp_init_f)(struct fsp_init_params *params);
    
    
    /* FspNotify API function prototype */
    
    typedef asmlinkage u32 (*fsp_notify_f)(struct fsp_notify_params *params);