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/* SPDX-License-Identifier: Intel */
/*
* Copyright (C) 2015-2016 Intel Corp.
* (Written by Alexandru Gagniuc <alexandrux.gagniuc@intel.com> for Intel Corp.)
* Mostly taken from coreboot
*/
#ifndef __ASM_FSP_INTERNAL_H
#define __ASM_FSP_INTERNAL_H
struct binman_entry;
struct fsp_header;
struct fspm_upd;
struct fsps_upd;
enum fsp_type_t {
FSP_M,
FSP_S,
};
int fsp_get_header(ulong offset, ulong size, bool use_spi_flash,
struct fsp_header **fspp);
/**
* fsp_locate_fsp() - Locate an FSP component
*
* This finds an FSP component by various methods. It is not as general-purpose
* as it looks, since it expects FSP-M to be requested in SPL (only), and FSP-S
* to be requested in U-Boot proper.
*
* @type: Component to locate
* @entry: Returns location of component
* @use_spi_flash: true to read using the Fast SPI driver, false to use
* memory-mapped SPI flash
* @devp: Returns northbridge device
* @hdrp: Returns FSP header
* @rom_offsetp: If non-NULL, returns the offset to add to any image position to
* find the memory-mapped location of that position. For example, for ROM
* position 0x1000, it will be mapped into 0x1000 + *rom_offsetp.
*/
int fsp_locate_fsp(enum fsp_type_t type, struct binman_entry *entry,
bool use_spi_flash, struct udevice **devp,
struct fsp_header **hdrp, ulong *rom_offsetp);
/**
* arch_fsps_preinit() - Perform init needed before calling FSP-S
*
* This allows use of probed drivers and PCI so is a convenient place to do any
* init that is needed before FSP-S is called. After this, U-Boot relocates and
* calls arch_fsp_init_r() before PCI is probed, and that function is not
* allowed to probe PCI before calling FSP-S.
*/
int arch_fsps_preinit(void);
/**
* fspm_update_config() - Set up the config structure for FSP-M
*
* @dev: Hostbridge device containing config
* @upd: Config data to fill in
* @return 0 if OK, -ENOENT if OK but no MRC-cache data was found, other -ve on
* error
*/
int fspm_update_config(struct udevice *dev, struct fspm_upd *upd);
/**
* fspm_done() - Indicate that memory init is complete
*
* This allows the board to do whatever post-init it needs before things
* continue.
*
* @dev: Hostbridge device
* @return 0 if OK, -ve on error
*/
int fspm_done(struct udevice *dev);
/**
* fsps_update_config() - Set up the config structure for FSP-S
*
* @dev: Hostbridge device containing config
* @rom_offset: Value to add to convert from ROM offset to memory-mapped address
* @upd: Config data to fill in
* @return 0 if OK, -ve on error
*/
int fsps_update_config(struct udevice *dev, ulong rom_offset,
struct fsps_upd *upd);
/**
* prepare_mrc_cache() - Read the MRC cache into the product-data struct
*
* This looks for cached Memory-reference code (MRC) data and stores it into
* @upd for use by the FSP-M binary.
*
* @return 0 if OK, -ENOENT if no data (whereupon the caller can continue and
* expect a slower boot), other -ve value on other error
*/
int prepare_mrc_cache(struct fspm_upd *upd);
#endif
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