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 enum { 17 RKSD_SPL_HDR_START = RK_CODE1_OFFSET * RK_BLK_SIZE, 18 RKSD_SPL_START = RKSD_SPL_HDR_START + 4, 19 RKSD_HEADER_LEN = RKSD_SPL_START, 20 }; 21 22 static char dummy_hdr[RKSD_HEADER_LEN]; 23 24 static int rksd_check_params(struct image_tool_params *params) 25 { 26 return 0; 27 } 28 29 static int rksd_verify_header(unsigned char *buf, int size, 30 struct image_tool_params *params) 31 { 32 return 0; 33 } 34 35 static void rksd_print_header(const void *buf) 36 { 37 } 38 39 static void rksd_set_header(void *buf, struct stat *sbuf, int ifd, 40 struct image_tool_params *params) 41 { 42 unsigned int size; 43 int ret; 44 45 size = params->file_size - RKSD_SPL_HDR_START; 46 ret = rkcommon_set_header(buf, size); 47 if (ret) { 48 /* TODO(sjg@chromium.org): This method should return an error */ 49 printf("Warning: SPL image is too large (size %#x) and will not boot\n", 50 size); 51 } 52 53 memcpy(buf + RKSD_SPL_HDR_START, "RK32", 4); 54 } 55 56 static int rksd_extract_subimage(void *buf, struct image_tool_params *params) 57 { 58 return 0; 59 } 60 61 static int rksd_check_image_type(uint8_t type) 62 { 63 if (type == IH_TYPE_RKSD) 64 return EXIT_SUCCESS; 65 else 66 return EXIT_FAILURE; 67 } 68 69 /* We pad the file out to a fixed size - this method returns that size */ 70 static int rksd_vrec_header(struct image_tool_params *params, 71 struct image_type_params *tparams) 72 { 73 int pad_size; 74 75 pad_size = RKSD_SPL_HDR_START + RK_MAX_CODE1_SIZE; 76 debug("pad_size %x\n", pad_size); 77 78 return pad_size - params->file_size; 79 } 80 81 /* 82 * rk_sd parameters 83 */ 84 U_BOOT_IMAGE_TYPE( 85 rksd, 86 "Rockchip SD Boot Image support", 87 RKSD_HEADER_LEN, 88 dummy_hdr, 89 rksd_check_params, 90 rksd_verify_header, 91 rksd_print_header, 92 rksd_set_header, 93 rksd_extract_subimage, 94 rksd_check_image_type, 95 NULL, 96 rksd_vrec_header 97 ); 98