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>
115 lines
3.6 KiB
C
115 lines
3.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2015 Google, Inc
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* Written by Simon Glass <sjg@chromium.org>
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*/
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#ifndef _RKCOMMON_H
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#define _RKCOMMON_H
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enum {
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RK_BLK_SIZE = 512,
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RK_INIT_SIZE_ALIGN = 2048,
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RK_INIT_OFFSET = 4,
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RK_MAX_BOOT_SIZE = 512 << 10,
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RK_SPL_HDR_START = RK_INIT_OFFSET * RK_BLK_SIZE,
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RK_SPL_HDR_SIZE = 4,
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RK_SPL_START = RK_SPL_HDR_START + RK_SPL_HDR_SIZE,
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RK_IMAGE_HEADER_LEN = RK_SPL_START,
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};
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/**
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* rkcommon_check_params() - check params
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*
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* @return 0 if OK, -1 if ERROR.
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*/
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int rkcommon_check_params(struct image_tool_params *params);
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/**
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* rkcommon_get_spl_hdr() - get 4-bytes spl hdr for a Rockchip boot image
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*
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* Rockchip's bootrom requires the spl loader to start with a 4-bytes
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* header. The content of this header depends on the chip type.
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*/
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const char *rkcommon_get_spl_hdr(struct image_tool_params *params);
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/**
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* rkcommon_get_spl_size() - get spl size for a Rockchip boot image
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*
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* Different chip may have different sram size. And if we want to jump
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* back to the bootrom after spl, we may need to reserve some sram space
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* for the bootrom.
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* The spl loader size should be sram size minus reserved size(if needed)
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*/
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int rkcommon_get_spl_size(struct image_tool_params *params);
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/**
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* rkcommon_set_header() - set up the header for a Rockchip boot image
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*
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* This sets up a 2KB header which can be interpreted by the Rockchip boot ROM.
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*
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* @buf: Pointer to header place (must be at least 2KB in size)
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* @file_size: Size of the file we want the boot ROM to load, in bytes
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* @return 0 if OK, -ENOSPC if too large
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*/
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int rkcommon_set_header(void *buf, uint file_size,
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struct image_tool_params *params);
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/**
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* rkcommon_verify_header() - verify the header for a Rockchip boot image
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*
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* @buf: Pointer to the image file
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* @file_size: Size of entire bootable image file (incl. all padding)
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* @return 0 if OK
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*/
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int rkcommon_verify_header(unsigned char *buf, int size,
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struct image_tool_params *params);
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/**
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* rkcommon_print_header() - print the header for a Rockchip boot image
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*
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* This prints the header, spl_name and whether this is a SD/MMC or SPI image.
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*
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* @buf: Pointer to the image (can be a read-only file-mapping)
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*/
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void rkcommon_print_header(const void *buf);
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/**
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* rkcommon_need_rc4_spl() - check if rc4 encoded spl is required
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*
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* Some socs cannot disable the rc4-encryption of the spl binary.
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* rc4 encryption is disabled normally except on socs that cannot
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* handle unencrypted binaries.
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* @return true or false depending on rc4 being required.
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*/
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bool rkcommon_need_rc4_spl(struct image_tool_params *params);
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/**
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* rkcommon_rc4_encode_spl() - encode the spl binary
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*
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* Encrypts the SPL binary using the generic rc4 key as required
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* by some socs.
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*
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* @buf: Pointer to the SPL data (header and SPL binary)
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* @offset: offset inside buf to start at
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* @size: number of bytes to encode
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*/
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void rkcommon_rc4_encode_spl(void *buf, unsigned int offset, unsigned int size);
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/**
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* rkcommon_vrec_header() - allocate memory for the header
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*
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* @params: Pointer to the tool params structure
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* @tparams: Pointer tot the image type structure (for setting
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* the header and header_size)
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* @alignment: Alignment (a power of two) that the image should be
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* padded to (e.g. 512 if we want to align with SD/MMC
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* blocksizes or 2048 for the SPI format)
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*
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* @return bytes of padding required/added (does not include the header_size)
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*/
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int rkcommon_vrec_header(struct image_tool_params *params,
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struct image_type_params *tparams,
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unsigned int alignment);
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#endif
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