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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / b0b1768e1b138204ab07d46cbe7d24d3770f0a12 / . / tools / lpc32xximage.c
blob: 37931f91840cea11a98c9b3a4670f3e9ab30b9b4 [file] [log] [blame]
Tom Rini83d290c2018-05-06 17:58:06 -0400[diff] [blame]1// SPDX-License-Identifier: GPL-2.0+
Albert ARIBAUD \(3ADEV\)39f520b2015-03-31 11:40:49 +0200[diff] [blame]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>
Albert ARIBAUD \(3ADEV\)39f520b2015-03-31 11:40:49 +0200[diff] [blame]21 */
22
23#include "imagetool.h"
24#include <compiler.h>
25#include <image.h>
26
27/*
28 * NAND page 0 boot header
29 */
30
31struct 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
73static struct nand_page_0_boot_header lpc32xximage_header;
74
75static 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
82static 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
123static 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
128static 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
139static 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 */
164U_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);