1 // SPDX-License-Identifier: GPL-2.0+
3 * (C) Copyright 2015 Google, Inc
4 * Written by Simon Glass <sjg@chromium.org>
6 * See README.rockchip for details of the rkspi format
16 RKSPI_SECT_LEN
= RK_BLK_SIZE
* 4,
19 static void rkspi_set_header(void *buf
, struct stat
*sbuf
, int ifd
,
20 struct image_tool_params
*params
)
26 size
= params
->orig_file_size
;
27 ret
= rkcommon_set_header(buf
, size
, params
);
28 debug("size %x\n", size
);
30 /* TODO(sjg@chromium.org): This method should return an error */
31 printf("Warning: SPL image is too large (size %#x) and will "
36 * Spread the image out so we only use the first 2KB of each 4KB
37 * region. This is a feature of the SPI format required by the Rockchip
38 * boot ROM. Its rationale is unknown.
40 for (sector
= size
/ RKSPI_SECT_LEN
- 1; sector
>= 0; sector
--) {
41 debug("sector %u\n", sector
);
42 memmove(buf
+ sector
* RKSPI_SECT_LEN
* 2,
43 buf
+ sector
* RKSPI_SECT_LEN
,
45 memset(buf
+ sector
* RKSPI_SECT_LEN
* 2 + RKSPI_SECT_LEN
,
46 '\0', RKSPI_SECT_LEN
);
50 static int rkspi_check_image_type(uint8_t type
)
52 if (type
== IH_TYPE_RKSPI
)
59 * The SPI payload needs to be padded out to make space for odd half-sector
60 * layout used in flash (i.e. only the first 2K of each 4K sector is used).
62 static int rkspi_vrec_header(struct image_tool_params
*params
,
63 struct image_type_params
*tparams
)
65 int padding
= rkcommon_vrec_header(params
, tparams
, RK_INIT_SIZE_ALIGN
);
67 * The file size has not been adjusted at this point (our caller will
68 * eventually add the header/padding to the file_size), so we need to
69 * add up the header_size, file_size and padding ourselves.
71 int padded_size
= tparams
->header_size
+ params
->file_size
+ padding
;
74 * We need to store the original file-size (i.e. before padding), as
75 * imagetool does not set this during its adjustment of file_size.
77 params
->orig_file_size
= padded_size
;
80 * Converting to the SPI format (i.e. splitting each 4K page into two
81 * 2K subpages and then padding these 2K pages up to take a complete
82 * 4K sector again) will will double the image size.
84 * Thus we return the padded_size as an additional padding requirement
85 * (be sure to add this to the padding returned from the common code).
87 return padded_size
+ padding
;
95 "Rockchip SPI Boot Image support",
98 rkcommon_check_params
,
99 rkcommon_verify_header
,
100 rkcommon_print_header
,
103 rkspi_check_image_type
,