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