Gitiles
Code Review Sign In
gerrit.cesnet.cz / github / trini / u-boot / 762f98d3dd9eb19c1e826e6cf5cd66756dcf65f8 / . / tools / lpc32xximage.c
blob: 6b3865f642357cf7a5ef5526cc543b98fa0cb879 [file] [log] [blame]
Albert ARIBAUD \(3ADEV\)39f520b2015-03-31 11:40:49 +0200[diff] [blame]1/*
2 * Image manipulator for LPC32XX SoCs
3 *
4 * (C) Copyright 2015 DENX Software Engineering GmbH
5 * Written-by: Albert ARIBAUD <albert.aribaud@3adev.fr>
6 *
7 * Derived from omapimage.c:
8 *
9 * (C) Copyright 2010
10 * Linaro LTD, www.linaro.org
11 * Author: John Rigby <john.rigby@linaro.org>
12 * Based on TI's signGP.c
13 *
14 * (C) Copyright 2009
15 * Stefano Babic, DENX Software Engineering, sbabic@denx.de.
16 *
17 * (C) Copyright 2008
18 * Marvell Semiconductor <www.marvell.com>
19 * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
20 *
21 * SPDX-License-Identifier: GPL-2.0+
22 */
23
24#include "imagetool.h"
25#include <compiler.h>
26#include <image.h>
27
28/*
29 * NAND page 0 boot header
30 */
31
32struct nand_page_0_boot_header {
33 uint32_t data[129];
34 uint32_t pad[383];
35};
36
37/*
38 * Default ICC (interface configuration data [sic]) if none specified
39 * in board config
40 */
41
42#ifndef LPC32XX_BOOT_ICR
43#define LPC32XX_BOOT_ICR 0x00000096
44#endif
45
46/*
47 * Default boot NAND page size if none specified in board config
48 */
49
50#ifndef LPC32XX_BOOT_NAND_PAGESIZE
51#define LPC32XX_BOOT_NAND_PAGESIZE 2048
52#endif
53
54/*
55 * Default boot NAND pages per sector if none specified in board config
56 */
57
58#ifndef LPC32XX_BOOT_NAND_PAGES_PER_SECTOR
59#define LPC32XX_BOOT_NAND_PAGES_PER_SECTOR 64
60#endif
61
62/*
63 * Maximum size for boot code is 56K unless defined in board config
64 */
65
66#ifndef LPC32XX_BOOT_CODESIZE
67#define LPC32XX_BOOT_CODESIZE (56*1024)
68#endif
69
70/* signature byte for a readable block */
71
72#define LPC32XX_BOOT_BLOCK_OK 0xaa
73
74static struct nand_page_0_boot_header lpc32xximage_header;
75
76static int lpc32xximage_check_image_types(uint8_t type)
77{
78 if (type == IH_TYPE_LPC32XXIMAGE)
79 return EXIT_SUCCESS;
80 return EXIT_FAILURE;
81}
82
83static int lpc32xximage_verify_header(unsigned char *ptr, int image_size,
84 struct image_tool_params *params)
85{
86 struct nand_page_0_boot_header *hdr =
87 (struct nand_page_0_boot_header *)ptr;
88
89 /* turn image size from bytes to NAND pages, page 0 included */
90 int image_size_in_pages = ((image_size - 1)
91 / LPC32XX_BOOT_NAND_PAGESIZE);
92
93 if (hdr->data[0] != (0xff & LPC32XX_BOOT_ICR))
94 return -1;
95 if (hdr->data[1] != (0xff & ~LPC32XX_BOOT_ICR))
96 return -1;
97 if (hdr->data[2] != (0xff & LPC32XX_BOOT_ICR))
98 return -1;
99 if (hdr->data[3] != (0xff & ~LPC32XX_BOOT_ICR))
100 return -1;
101 if (hdr->data[4] != (0xff & image_size_in_pages))
102 return -1;
103 if (hdr->data[5] != (0xff & ~image_size_in_pages))
104 return -1;
105 if (hdr->data[6] != (0xff & image_size_in_pages))
106 return -1;
107 if (hdr->data[7] != (0xff & ~image_size_in_pages))
108 return -1;
109 if (hdr->data[8] != (0xff & image_size_in_pages))
110 return -1;
111 if (hdr->data[9] != (0xff & ~image_size_in_pages))
112 return -1;
113 if (hdr->data[10] != (0xff & image_size_in_pages))
114 return -1;
115 if (hdr->data[11] != (0xff & ~image_size_in_pages))
116 return -1;
117 if (hdr->data[12] != LPC32XX_BOOT_BLOCK_OK)
118 return -1;
119 if (hdr->data[128] != LPC32XX_BOOT_BLOCK_OK)
120 return -1;
121 return 0;
122}
123
124static void print_hdr_byte(struct nand_page_0_boot_header *hdr, int ofs)
125{
126 printf("header[%d] = %02x\n", ofs, hdr->data[ofs]);
127}
128
129static void lpc32xximage_print_header(const void *ptr)
130{
131 struct nand_page_0_boot_header *hdr =
132 (struct nand_page_0_boot_header *)ptr;
133 int ofs;
134
135 for (ofs = 0; ofs <= 12; ofs++)
136 print_hdr_byte(hdr, ofs);
137 print_hdr_byte(hdr, 128);
138}
139
140static void lpc32xximage_set_header(void *ptr, struct stat *sbuf, int ifd,
141 struct image_tool_params *params)
142{
143 struct nand_page_0_boot_header *hdr =
144 (struct nand_page_0_boot_header *)ptr;
145
146 /* turn image size from bytes to NAND pages, page 0 included */
147 int image_size_in_pages = ((sbuf->st_size
148 + LPC32XX_BOOT_NAND_PAGESIZE - 1)
149 / LPC32XX_BOOT_NAND_PAGESIZE);
150
151 /* fill header -- default byte value is 0x00, not 0xFF */
152 memset((void *)hdr, 0, sizeof(*hdr));
153 hdr->data[0] = (hdr->data[2] = 0xff & LPC32XX_BOOT_ICR);
154 hdr->data[1] = (hdr->data[3] = 0xff & ~LPC32XX_BOOT_ICR);
155 hdr->data[4] = (hdr->data[6] = (hdr->data[8]
156 = (hdr->data[10] = 0xff & image_size_in_pages)));
157 hdr->data[5] = (hdr->data[7] = (hdr->data[9]
158 = (hdr->data[11] = 0xff & ~image_size_in_pages)));
159 hdr->data[12] = (hdr->data[128] = LPC32XX_BOOT_BLOCK_OK);
160}
161
162/*
163 * lpc32xximage parameters
164 */
165U_BOOT_IMAGE_TYPE(
166 lpc32xximage,
167 "LPC32XX Boot Image",
168 sizeof(lpc32xximage_header),
169 (void *)&lpc32xximage_header,
170 NULL,
171 lpc32xximage_verify_header,
172 lpc32xximage_print_header,
173 lpc32xximage_set_header,
174 NULL,
175 lpc32xximage_check_image_types,
176 NULL,
177 NULL
178);