/* * (C) Copyright 2015 Google, Inc * Written by Simon Glass <sjg@chromium.org> * * SPDX-License-Identifier: GPL-2.0+ */ #ifndef _RKCOMMON_H #define _RKCOMMON_H enum { RK_BLK_SIZE = 512, RK_INIT_OFFSET = 4, RK_MAX_BOOT_SIZE = 512 << 10, 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, }; /** * 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); /** * 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 */ int rkcommon_set_header(void *buf, uint file_size, struct image_tool_params *params); #endif