mirror of
https://github.com/AsahiLinux/u-boot
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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
223 lines
6.3 KiB
C
223 lines
6.3 KiB
C
/* SPDX-License-Identifier: Intel */
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/*
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* Copyright (C) 2013, Intel Corporation
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* Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
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*/
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#ifndef __FSP_SUPPORT_H__
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#define __FSP_SUPPORT_H__
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#include "fsp_types.h"
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#include "fsp_fv.h"
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#include "fsp_ffs.h"
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#include "fsp_api.h"
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#include "fsp_hob.h"
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#include "fsp_infoheader.h"
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#include "fsp_bootmode.h"
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#include "fsp_azalia.h"
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#include <asm/arch/fsp/fsp_vpd.h>
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#include <asm/arch/fsp/fsp_configs.h>
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#define FSP_LOWMEM_BASE 0x100000UL
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#define FSP_HIGHMEM_BASE 0x100000000ULL
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#define UPD_TERMINATOR 0x55AA
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/**
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* FSP Continuation assembly helper routine
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*
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* This routine jumps to the C version of FSP continuation function
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*/
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void asm_continuation(void);
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/**
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* FSP initialization complete
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*
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* This is the function that indicates FSP initialization is complete and jumps
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* back to the bootloader with HOB list pointer as the parameter.
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*
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* @hob_list: HOB list pointer
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*/
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void fsp_init_done(void *hob_list);
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/**
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* FSP Continuation function
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*
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* @status: Always 0
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* @hob_list: HOB list pointer
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*
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* @retval: Never returns
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*/
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void fsp_continue(u32 status, void *hob_list);
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/**
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* Find FSP header offset in FSP image
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*
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* @retval: the offset of FSP header. If signature is invalid, returns 0.
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*/
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struct fsp_header *find_fsp_header(void);
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/**
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* FSP initialization wrapper function.
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*
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* @stack_top: bootloader stack top address
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* @boot_mode: boot mode defined in fsp_bootmode.h
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* @nvs_buf: Non-volatile memory buffer pointer
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*/
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void fsp_init(u32 stack_top, u32 boot_mode, void *nvs_buf);
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/**
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* FSP notification wrapper function
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*
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* @fsp_hdr: Pointer to FSP information header
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* @phase: FSP initialization phase defined in enum fsp_phase
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*
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* @retval: compatible status code with EFI_STATUS defined in PI spec
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*/
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u32 fsp_notify(struct fsp_header *fsp_hdr, u32 phase);
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/**
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* This function retrieves the top of usable low memory.
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*
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* @hob_list: A HOB list pointer.
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*
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* @retval: Usable low memory top.
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*/
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u32 fsp_get_usable_lowmem_top(const void *hob_list);
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/**
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* This function retrieves the top of usable high memory.
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*
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* @hob_list: A HOB list pointer.
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*
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* @retval: Usable high memory top.
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*/
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u64 fsp_get_usable_highmem_top(const void *hob_list);
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/**
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* This function retrieves a special reserved memory region.
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*
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* @hob_list: A HOB list pointer.
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* @len: A pointer to the GUID HOB data buffer length.
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* If the GUID HOB is located, the length will be updated.
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* @guid: A pointer to the owner guild.
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*
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* @retval: Reserved region start address.
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* 0 if this region does not exist.
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*/
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u64 fsp_get_reserved_mem_from_guid(const void *hob_list,
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u64 *len, struct efi_guid *guid);
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/**
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* This function retrieves the FSP reserved normal memory.
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*
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* @hob_list: A HOB list pointer.
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* @len: A pointer to the FSP reserved memory length buffer.
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* If the GUID HOB is located, the length will be updated.
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* @retval: FSP reserved memory base
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* 0 if this region does not exist.
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*/
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u32 fsp_get_fsp_reserved_mem(const void *hob_list, u32 *len);
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/**
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* This function retrieves the TSEG reserved normal memory.
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*
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* @hob_list: A HOB list pointer.
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* @len: A pointer to the TSEG reserved memory length buffer.
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* If the GUID HOB is located, the length will be updated.
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*
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* @retval NULL: Failed to find the TSEG reserved memory.
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* @retval others: TSEG reserved memory base.
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*/
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u32 fsp_get_tseg_reserved_mem(const void *hob_list, u32 *len);
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/**
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* Returns the next instance of a HOB type from the starting HOB.
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*
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* @type: HOB type to search
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* @hob_list: A pointer to the HOB list
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*
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* @retval: A HOB object with matching type; Otherwise NULL.
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*/
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const struct hob_header *fsp_get_next_hob(uint type, const void *hob_list);
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/**
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* Returns the next instance of the matched GUID HOB from the starting HOB.
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*
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* @guid: GUID to search
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* @hob_list: A pointer to the HOB list
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*
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* @retval: A HOB object with matching GUID; Otherwise NULL.
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*/
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const struct hob_header *fsp_get_next_guid_hob(const struct efi_guid *guid,
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const void *hob_list);
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/**
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* This function retrieves a GUID HOB data buffer and size.
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*
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* @hob_list: A HOB list pointer.
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* @len: A pointer to the GUID HOB data buffer length.
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* If the GUID HOB is located, the length will be updated.
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* @guid A pointer to HOB GUID.
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*
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* @retval NULL: Failed to find the GUID HOB.
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* @retval others: GUID HOB data buffer pointer.
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*/
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void *fsp_get_guid_hob_data(const void *hob_list, u32 *len,
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struct efi_guid *guid);
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/**
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* This function retrieves FSP Non-volatile Storage HOB buffer and size.
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*
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* @hob_list: A HOB list pointer.
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* @len: A pointer to the NVS data buffer length.
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* If the HOB is located, the length will be updated.
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*
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* @retval NULL: Failed to find the NVS HOB.
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* @retval others: FSP NVS data buffer pointer.
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*/
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void *fsp_get_nvs_data(const void *hob_list, u32 *len);
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/**
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* This function retrieves Bootloader temporary stack buffer and size.
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*
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* @hob_list: A HOB list pointer.
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* @len: A pointer to the bootloader temporary stack length.
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* If the HOB is located, the length will be updated.
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*
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* @retval NULL: Failed to find the bootloader temporary stack HOB.
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* @retval others: Bootloader temporary stackbuffer pointer.
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*/
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void *fsp_get_bootloader_tmp_mem(const void *hob_list, u32 *len);
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/**
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* This function retrieves graphics information.
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*
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* @hob_list: A HOB list pointer.
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* @len: A pointer to the graphics info HOB length.
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* If the HOB is located, the length will be updated.
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*
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* @retval NULL: Failed to find the graphics info HOB.
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* @retval others: A pointer to struct hob_graphics_info.
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*/
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void *fsp_get_graphics_info(const void *hob_list, u32 *len);
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/**
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* This function overrides the default configurations of FSP.
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*
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* @config: A pointer to the FSP configuration data structure
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* @rt_buf: A pointer to the FSP runtime buffer data structure
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*
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* @return: None
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*/
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void update_fsp_configs(struct fsp_config_data *config,
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struct fspinit_rtbuf *rt_buf);
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/**
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* fsp_init_phase_pci() - Tell the FSP that we have completed PCI init
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*
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* @return 0 if OK, -EPERM if the FSP gave an error.
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*/
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int fsp_init_phase_pci(void);
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#endif
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