]>
git.ipfire.org Git - people/ms/u-boot.git/blob - tools/rkspi.c
2 * (C) Copyright 2015 Google, Inc
3 * Written by Simon Glass <sjg@chromium.org>
5 * SPDX-License-Identifier: GPL-2.0+
7 * See README.rockchip for details of the rkspi format
10 #include "imagetool.h"
17 RKSPI_SECT_LEN
= RK_BLK_SIZE
* 4,
20 static void rkspi_set_header(void *buf
, struct stat
*sbuf
, int ifd
,
21 struct image_tool_params
*params
)
27 size
= params
->orig_file_size
;
28 ret
= rkcommon_set_header(buf
, size
, params
);
29 debug("size %x\n", size
);
31 /* TODO(sjg@chromium.org): This method should return an error */
32 printf("Warning: SPL image is too large (size %#x) and will "
37 * Spread the image out so we only use the first 2KB of each 4KB
38 * region. This is a feature of the SPI format required by the Rockchip
39 * boot ROM. Its rationale is unknown.
41 for (sector
= size
/ RKSPI_SECT_LEN
- 1; sector
>= 0; sector
--) {
42 debug("sector %u\n", sector
);
43 memmove(buf
+ sector
* RKSPI_SECT_LEN
* 2,
44 buf
+ sector
* RKSPI_SECT_LEN
,
46 memset(buf
+ sector
* RKSPI_SECT_LEN
* 2 + RKSPI_SECT_LEN
,
47 '\0', RKSPI_SECT_LEN
);
51 static int rkspi_check_image_type(uint8_t type
)
53 if (type
== IH_TYPE_RKSPI
)
60 * The SPI payload needs to be padded out to make space for odd half-sector
61 * layout used in flash (i.e. only the first 2K of each 4K sector is used).
63 static int rkspi_vrec_header(struct image_tool_params
*params
,
64 struct image_type_params
*tparams
)
66 int padding
= rkcommon_vrec_header(params
, tparams
, RK_INIT_SIZE_ALIGN
);
68 * The file size has not been adjusted at this point (our caller will
69 * eventually add the header/padding to the file_size), so we need to
70 * add up the header_size, file_size and padding ourselves.
72 int padded_size
= tparams
->header_size
+ params
->file_size
+ padding
;
75 * We need to store the original file-size (i.e. before padding), as
76 * imagetool does not set this during its adjustment of file_size.
78 params
->orig_file_size
= padded_size
;
81 * Converting to the SPI format (i.e. splitting each 4K page into two
82 * 2K subpages and then padding these 2K pages up to take a complete
83 * 4K sector again) will will double the image size.
85 * Thus we return the padded_size as an additional padding requirement
86 * (be sure to add this to the padding returned from the common code).
88 return padded_size
+ padding
;
96 "Rockchip SPI Boot Image support",
99 rkcommon_check_params
,
100 rkcommon_verify_header
,
101 rkcommon_print_header
,
104 rkspi_check_image_type
,