1 /* 2 * (C) Copyright 2015 Google, Inc 3 * Written by Simon Glass <sjg@chromium.org> 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 * 7 * See README.rockchip for details of the rksd format 8 */ 9 10 #include "imagetool.h" 11 #include <image.h> 12 #include <rc4.h> 13 #include "mkimage.h" 14 #include "rkcommon.h" 15 16 static char dummy_hdr[RK_IMAGE_HEADER_LEN]; 17 18 static int rksd_verify_header(unsigned char *buf, int size, 19 struct image_tool_params *params) 20 { 21 return 0; 22 } 23 24 static void rksd_print_header(const void *buf) 25 { 26 } 27 28 static void rksd_set_header(void *buf, struct stat *sbuf, int ifd, 29 struct image_tool_params *params) 30 { 31 unsigned int size; 32 int ret; 33 34 size = params->file_size - RK_SPL_HDR_START; 35 ret = rkcommon_set_header(buf, size, params); 36 if (ret) { 37 /* TODO(sjg@chromium.org): This method should return an error */ 38 printf("Warning: SPL image is too large (size %#x) and will not boot\n", 39 size); 40 } 41 42 memcpy(buf + RK_SPL_HDR_START, rkcommon_get_spl_hdr(params), 43 RK_SPL_HDR_SIZE); 44 45 if (rkcommon_need_rc4_spl(params)) 46 rkcommon_rc4_encode_spl(buf, RK_SPL_START - 4, 47 params->file_size - RK_SPL_START + 4); 48 } 49 50 static int rksd_extract_subimage(void *buf, struct image_tool_params *params) 51 { 52 return 0; 53 } 54 55 static int rksd_check_image_type(uint8_t type) 56 { 57 if (type == IH_TYPE_RKSD) 58 return EXIT_SUCCESS; 59 else 60 return EXIT_FAILURE; 61 } 62 63 /* We pad the file out to a fixed size - this method returns that size */ 64 static int rksd_vrec_header(struct image_tool_params *params, 65 struct image_type_params *tparams) 66 { 67 int pad_size; 68 69 pad_size = RK_SPL_HDR_START + rkcommon_get_spl_size(params); 70 debug("pad_size %x\n", pad_size); 71 72 return pad_size - params->file_size; 73 } 74 75 /* 76 * rk_sd parameters 77 */ 78 U_BOOT_IMAGE_TYPE( 79 rksd, 80 "Rockchip SD Boot Image support", 81 RK_IMAGE_HEADER_LEN, 82 dummy_hdr, 83 rkcommon_check_params, 84 rksd_verify_header, 85 rksd_print_header, 86 rksd_set_header, 87 rksd_extract_subimage, 88 rksd_check_image_type, 89 NULL, 90 rksd_vrec_header 91 ); 92