u-boot/tools/rkspi.c
Jeffy Chen eea6cd8d7c rockchip: mkimage: support packing optional second level boot-loader
Support packing optional second level boot-loader:

$ ./tools/mkimage -n rk3399 -T rksd -d \
  rk3399_ddr_800MHz_v1.24.bin:rk3399_miniloader_v1.19.bin out -v
Adding Image rk3399_ddr_800MHz_v1.24.bin
Size 116492(pad to 116736)
Adding Image rk3399_miniloader_v1.19.bin
Size 88060(pad to 88064)
Image Type:   Rockchip RK33 (SD/MMC) boot image
Init Data Size: 116736 bytes
Boot Data Size: 88064 bytes

Mainly parse init file and boot file from datafile option, copy them to
the image with 2KB alignment.

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-12-27 15:17:07 +08:00

93 lines
2.1 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2015 Google, Inc
* Written by Simon Glass <sjg@chromium.org>
*
* See README.rockchip for details of the rkspi format
*/
#include "imagetool.h"
#include <image.h>
#include <rc4.h>
#include "mkimage.h"
#include "rkcommon.h"
enum {
RKSPI_SECT_LEN = RK_BLK_SIZE * 4,
};
static void rkspi_set_header(void *buf, struct stat *sbuf, int ifd,
struct image_tool_params *params)
{
int sector;
unsigned int size;
size = params->orig_file_size;
rkcommon_set_header(buf, sbuf, ifd, params);
/*
* Spread the image out so we only use the first 2KB of each 4KB
* region. This is a feature of the SPI format required by the Rockchip
* boot ROM. Its rationale is unknown.
*/
if (params->vflag)
fprintf(stderr, "Spreading spi image from %u to %u\n",
size, params->file_size);
for (sector = size / RKSPI_SECT_LEN - 1; sector >= 0; sector--) {
debug("sector %u\n", sector);
memmove(buf + sector * RKSPI_SECT_LEN * 2,
buf + sector * RKSPI_SECT_LEN,
RKSPI_SECT_LEN);
memset(buf + sector * RKSPI_SECT_LEN * 2 + RKSPI_SECT_LEN,
'\0', RKSPI_SECT_LEN);
}
}
static int rkspi_check_image_type(uint8_t type)
{
if (type == IH_TYPE_RKSPI)
return EXIT_SUCCESS;
else
return EXIT_FAILURE;
}
/*
* The SPI payload needs to make space for odd half-sector layout used in flash
* (i.e. only the first 2K of each 4K sector is used).
*/
static int rkspi_vrec_header(struct image_tool_params *params,
struct image_type_params *tparams)
{
rkcommon_vrec_header(params, tparams);
/*
* Converting to the SPI format (i.e. splitting each 4K page into two
* 2K subpages and then padding these 2K pages up to take a complete
* 4K sector again) which will double the image size.
*/
params->file_size = ROUND(params->file_size, RKSPI_SECT_LEN) << 1;
/* Ignoring pad len, since we are using our own copy_image() */
return 0;
}
/*
* rk_spi parameters
*/
U_BOOT_IMAGE_TYPE(
rkspi,
"Rockchip SPI Boot Image support",
0,
NULL,
rkcommon_check_params,
rkcommon_verify_header,
rkcommon_print_header,
rkspi_set_header,
NULL,
rkspi_check_image_type,
NULL,
rkspi_vrec_header
);