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115 lines
3.6 KiB
115 lines
3.6 KiB
/* 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 <[email protected]> |
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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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