dtoc: Fixed endianness in Prop.GetEmpty()
[platform/kernel/u-boot.git] / tools / lpc32xximage.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Image manipulator for LPC32XX SoCs
4  *
5  * (C) Copyright 2015  DENX Software Engineering GmbH
6  * Written-by: Albert ARIBAUD <albert.aribaud@3adev.fr>
7  *
8  * Derived from omapimage.c:
9  *
10  * (C) Copyright 2010
11  * Linaro LTD, www.linaro.org
12  * Author: John Rigby <john.rigby@linaro.org>
13  * Based on TI's signGP.c
14  *
15  * (C) Copyright 2009
16  * Stefano Babic, DENX Software Engineering, sbabic@denx.de.
17  *
18  * (C) Copyright 2008
19  * Marvell Semiconductor <www.marvell.com>
20  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
21  */
22
23 #include "imagetool.h"
24 #include <compiler.h>
25 #include <image.h>
26
27 /*
28  * NAND page 0 boot header
29  */
30
31 struct nand_page_0_boot_header {
32         uint32_t data[129];
33         uint32_t pad[383];
34 };
35
36 /*
37  * Default ICC (interface configuration data [sic]) if none specified
38  * in board config
39  */
40
41 #ifndef LPC32XX_BOOT_ICR
42 #define LPC32XX_BOOT_ICR 0x00000096
43 #endif
44
45 /*
46  * Default boot NAND page size if none specified in board config
47  */
48
49 #ifndef LPC32XX_BOOT_NAND_PAGESIZE
50 #define LPC32XX_BOOT_NAND_PAGESIZE 2048
51 #endif
52
53 /*
54  * Default boot NAND pages per sector if none specified in board config
55  */
56
57 #ifndef LPC32XX_BOOT_NAND_PAGES_PER_SECTOR
58 #define LPC32XX_BOOT_NAND_PAGES_PER_SECTOR 64
59 #endif
60
61 /*
62  * Maximum size for boot code is 56K unless defined in board config
63  */
64
65 #ifndef LPC32XX_BOOT_CODESIZE
66 #define LPC32XX_BOOT_CODESIZE (56*1024)
67 #endif
68
69 /* signature byte for a readable block */
70
71 #define LPC32XX_BOOT_BLOCK_OK 0xaa
72
73 static struct nand_page_0_boot_header lpc32xximage_header;
74
75 static int lpc32xximage_check_image_types(uint8_t type)
76 {
77         if (type == IH_TYPE_LPC32XXIMAGE)
78                 return EXIT_SUCCESS;
79         return EXIT_FAILURE;
80 }
81
82 static int lpc32xximage_verify_header(unsigned char *ptr, int image_size,
83                         struct image_tool_params *params)
84 {
85         struct nand_page_0_boot_header *hdr =
86                 (struct nand_page_0_boot_header *)ptr;
87
88         /* turn image size from bytes to NAND pages, page 0 included */
89         int image_size_in_pages = ((image_size - 1)
90                                   / LPC32XX_BOOT_NAND_PAGESIZE);
91
92         if (hdr->data[0] != (0xff & LPC32XX_BOOT_ICR))
93                 return -1;
94         if (hdr->data[1] != (0xff & ~LPC32XX_BOOT_ICR))
95                 return -1;
96         if (hdr->data[2] != (0xff & LPC32XX_BOOT_ICR))
97                 return -1;
98         if (hdr->data[3] != (0xff & ~LPC32XX_BOOT_ICR))
99                 return -1;
100         if (hdr->data[4] != (0xff & image_size_in_pages))
101                 return -1;
102         if (hdr->data[5] != (0xff & ~image_size_in_pages))
103                 return -1;
104         if (hdr->data[6] != (0xff & image_size_in_pages))
105                 return -1;
106         if (hdr->data[7] != (0xff & ~image_size_in_pages))
107                 return -1;
108         if (hdr->data[8] != (0xff & image_size_in_pages))
109                 return -1;
110         if (hdr->data[9] != (0xff & ~image_size_in_pages))
111                 return -1;
112         if (hdr->data[10] != (0xff & image_size_in_pages))
113                 return -1;
114         if (hdr->data[11] != (0xff & ~image_size_in_pages))
115                 return -1;
116         if (hdr->data[12] != LPC32XX_BOOT_BLOCK_OK)
117                 return -1;
118         if (hdr->data[128] != LPC32XX_BOOT_BLOCK_OK)
119                 return -1;
120         return 0;
121 }
122
123 static void print_hdr_byte(struct nand_page_0_boot_header *hdr, int ofs)
124 {
125         printf("header[%d] = %02x\n", ofs, hdr->data[ofs]);
126 }
127
128 static void lpc32xximage_print_header(const void *ptr)
129 {
130         struct nand_page_0_boot_header *hdr =
131                 (struct nand_page_0_boot_header *)ptr;
132         int ofs;
133
134         for (ofs = 0; ofs <= 12; ofs++)
135                 print_hdr_byte(hdr, ofs);
136         print_hdr_byte(hdr, 128);
137 }
138
139 static void lpc32xximage_set_header(void *ptr, struct stat *sbuf, int ifd,
140                                 struct image_tool_params *params)
141 {
142         struct nand_page_0_boot_header *hdr =
143                 (struct nand_page_0_boot_header *)ptr;
144
145         /* turn image size from bytes to NAND pages, page 0 included */
146         int image_size_in_pages = ((sbuf->st_size
147                                   + LPC32XX_BOOT_NAND_PAGESIZE - 1)
148                                   / LPC32XX_BOOT_NAND_PAGESIZE);
149
150         /* fill header -- default byte value is 0x00, not 0xFF */
151         memset((void *)hdr, 0, sizeof(*hdr));
152         hdr->data[0] = (hdr->data[2] = 0xff & LPC32XX_BOOT_ICR);
153         hdr->data[1] = (hdr->data[3] = 0xff & ~LPC32XX_BOOT_ICR);
154         hdr->data[4] = (hdr->data[6] = (hdr->data[8]
155                        = (hdr->data[10] = 0xff & image_size_in_pages)));
156         hdr->data[5] = (hdr->data[7] = (hdr->data[9]
157                        = (hdr->data[11] = 0xff & ~image_size_in_pages)));
158         hdr->data[12] = (hdr->data[128] = LPC32XX_BOOT_BLOCK_OK);
159 }
160
161 /*
162  * lpc32xximage parameters
163  */
164 U_BOOT_IMAGE_TYPE(
165         lpc32xximage,
166         "LPC32XX Boot Image",
167         sizeof(lpc32xximage_header),
168         (void *)&lpc32xximage_header,
169         NULL,
170         lpc32xximage_verify_header,
171         lpc32xximage_print_header,
172         lpc32xximage_set_header,
173         NULL,
174         lpc32xximage_check_image_types,
175         NULL,
176         NULL
177 );