mirror of
https://source.denx.de/u-boot/u-boot.git
synced 2025-10-31 16:31:25 +01:00
7bf274b9ca
Our chips may have different spl size and spl header, so use imagename(passed by "mkimage -n") to select them now. Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com> Acked-by: Simon Glass <sjg@chromium.org>
137 lines
3.2 KiB
C
137 lines
3.2 KiB
C
/*
|
|
* (C) Copyright 2015 Google, Inc
|
|
* Written by Simon Glass <sjg@chromium.org>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*
|
|
* Helper functions for Rockchip images
|
|
*/
|
|
|
|
#include "imagetool.h"
|
|
#include <image.h>
|
|
#include <rc4.h>
|
|
#include "mkimage.h"
|
|
#include "rkcommon.h"
|
|
|
|
enum {
|
|
RK_SIGNATURE = 0x0ff0aa55,
|
|
};
|
|
|
|
/**
|
|
* struct header0_info - header block for boot ROM
|
|
*
|
|
* This is stored at SD card block 64 (where each block is 512 bytes, or at
|
|
* the start of SPI flash. It is encoded with RC4.
|
|
*
|
|
* @signature: Signature (must be RKSD_SIGNATURE)
|
|
* @disable_rc4: 0 to use rc4 for boot image, 1 to use plain binary
|
|
* @init_offset: Offset in blocks of the SPL code from this header
|
|
* block. E.g. 4 means 2KB after the start of this header.
|
|
* Other fields are not used by U-Boot
|
|
*/
|
|
struct header0_info {
|
|
uint32_t signature;
|
|
uint8_t reserved[4];
|
|
uint32_t disable_rc4;
|
|
uint16_t init_offset;
|
|
uint8_t reserved1[492];
|
|
uint16_t init_size;
|
|
uint16_t init_boot_size;
|
|
uint8_t reserved2[2];
|
|
};
|
|
|
|
/**
|
|
* struct spl_info - spl info for each chip
|
|
*
|
|
* @imagename: Image name(passed by "mkimage -n")
|
|
* @spl_hdr: Boot ROM requires a 4-bytes spl header
|
|
* @spl_size: Spl size(include extra 4-bytes spl header)
|
|
*/
|
|
struct spl_info {
|
|
const char *imagename;
|
|
const char *spl_hdr;
|
|
const uint32_t spl_size;
|
|
};
|
|
|
|
static struct spl_info spl_infos[] = {
|
|
{ "rk3036", "RK30", 0x1000 },
|
|
{ "rk3288", "RK32", 0x8000 },
|
|
};
|
|
|
|
static unsigned char rc4_key[16] = {
|
|
124, 78, 3, 4, 85, 5, 9, 7,
|
|
45, 44, 123, 56, 23, 13, 23, 17
|
|
};
|
|
|
|
static struct spl_info *rkcommon_get_spl_info(char *imagename)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(spl_infos); i++)
|
|
if (!strncmp(imagename, spl_infos[i].imagename, 6))
|
|
return spl_infos + i;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
int rkcommon_check_params(struct image_tool_params *params)
|
|
{
|
|
int i;
|
|
|
|
if (rkcommon_get_spl_info(params->imagename) != NULL)
|
|
return 0;
|
|
|
|
fprintf(stderr, "ERROR: imagename (%s) is not supported!\n",
|
|
strlen(params->imagename) > 0 ? params->imagename : "NULL");
|
|
|
|
fprintf(stderr, "Available imagename:");
|
|
for (i = 0; i < ARRAY_SIZE(spl_infos); i++)
|
|
fprintf(stderr, "\t%s", spl_infos[i].imagename);
|
|
fprintf(stderr, "\n");
|
|
|
|
return -1;
|
|
}
|
|
|
|
const char *rkcommon_get_spl_hdr(struct image_tool_params *params)
|
|
{
|
|
struct spl_info *info = rkcommon_get_spl_info(params->imagename);
|
|
|
|
/*
|
|
* info would not be NULL, because of we checked params before.
|
|
*/
|
|
return info->spl_hdr;
|
|
}
|
|
|
|
int rkcommon_get_spl_size(struct image_tool_params *params)
|
|
{
|
|
struct spl_info *info = rkcommon_get_spl_info(params->imagename);
|
|
|
|
/*
|
|
* info would not be NULL, because of we checked params before.
|
|
*/
|
|
return info->spl_size;
|
|
}
|
|
|
|
int rkcommon_set_header(void *buf, uint file_size,
|
|
struct image_tool_params *params)
|
|
{
|
|
struct header0_info *hdr;
|
|
|
|
if (file_size > rkcommon_get_spl_size(params))
|
|
return -ENOSPC;
|
|
|
|
memset(buf, '\0', RK_INIT_OFFSET * RK_BLK_SIZE);
|
|
hdr = (struct header0_info *)buf;
|
|
hdr->signature = RK_SIGNATURE;
|
|
hdr->disable_rc4 = 1;
|
|
hdr->init_offset = RK_INIT_OFFSET;
|
|
|
|
hdr->init_size = (file_size + RK_BLK_SIZE - 1) / RK_BLK_SIZE;
|
|
hdr->init_size = (hdr->init_size + 3) & ~3;
|
|
hdr->init_boot_size = hdr->init_size + RK_MAX_BOOT_SIZE / RK_BLK_SIZE;
|
|
|
|
rc4_encode(buf, RK_BLK_SIZE, rc4_key);
|
|
|
|
return 0;
|
|
}
|