Commit f9a3c278 authored by Simon Glass's avatar Simon Glass

rockchip: Add support for the SD image

The Rockchip boot ROM requires a particular file format. It consists of
64KB of zeroes, a 512-byte header encoded with RC4, and then some executable
code.

Add support to mkimage so that an SPL image (u-boot-spl-dtb.bin) can be
converted to this format.
Signed-off-by: default avatarSimon Glass <sjg@chromium.org>
parent a131c1f4
......@@ -156,6 +156,7 @@ static const table_entry_t uimage_type[] = {
{ IH_TYPE_X86_SETUP, "x86_setup", "x86 setup.bin", },
{ IH_TYPE_LPC32XXIMAGE, "lpc32xximage", "LPC32XX Boot Image", },
{ IH_TYPE_RKIMAGE, "rkimage", "Rockchip Boot Image" },
{ IH_TYPE_RKSD, "rksd", "Rockchip SD Boot Image" },
{ -1, "", "", },
};
......
......@@ -246,8 +246,9 @@ struct lmb;
#define IH_TYPE_LPC32XXIMAGE 21 /* x86 setup.bin Image */
#define IH_TYPE_LOADABLE 22 /* A list of typeless images */
#define IH_TYPE_RKIMAGE 23 /* Rockchip Boot Image */
#define IH_TYPE_RKSD 24 /* Rockchip SD card */
#define IH_TYPE_COUNT 24 /* Number of image types */
#define IH_TYPE_COUNT 25 /* Number of image types */
/*
* Compression Types
......
......@@ -64,7 +64,7 @@ RSA_OBJS-$(CONFIG_FIT_SIGNATURE) := $(addprefix lib/rsa/, \
rsa-sign.o rsa-verify.o rsa-checksum.o \
rsa-mod-exp.o)
ROCKCHIP_OBS = lib/rc4.o rkcommon.o rkimage.o
ROCKCHIP_OBS = lib/rc4.o rkcommon.o rkimage.o rksd.o
# common objs for dumpimage and mkimage
dumpimage-mkimage-objs := aisimage.o \
......
/*
* (C) Copyright 2015 Google, Inc
* Written by Simon Glass <sjg@chromium.org>
*
* SPDX-License-Identifier: GPL-2.0+
*
* See README.rockchip for details of the rksd format
*/
#include "imagetool.h"
#include <image.h>
#include <rc4.h>
#include "mkimage.h"
#include "rkcommon.h"
enum {
RKSD_HEADER0_START = 64 * RK_BLK_SIZE,
RKSD_SPL_HDR_START = RKSD_HEADER0_START +
RK_CODE1_OFFSET * RK_BLK_SIZE,
RKSD_SPL_START = RKSD_SPL_HDR_START + 4,
RKSD_HEADER_LEN = RKSD_SPL_START,
};
static char dummy_hdr[RKSD_HEADER_LEN];
static int rksd_check_params(struct image_tool_params *params)
{
return 0;
}
static int rksd_verify_header(unsigned char *buf, int size,
struct image_tool_params *params)
{
return 0;
}
static void rksd_print_header(const void *buf)
{
}
static void rksd_set_header(void *buf, struct stat *sbuf, int ifd,
struct image_tool_params *params)
{
unsigned int size;
int ret;
/* Zero the whole header. The first 32KB is empty */
memset(buf, '\0', RKSD_HEADER0_START);
size = params->file_size - RKSD_SPL_HDR_START;
ret = rkcommon_set_header(buf + RKSD_HEADER0_START, size);
if (ret) {
/* TODO(sjg@chromium.org): This method should return an error */
printf("Warning: SPL image is too large (size %#x) and will not boot\n",
size);
}
memcpy(buf + RKSD_SPL_HDR_START, "RK32", 4);
}
static int rksd_extract_subimage(void *buf, struct image_tool_params *params)
{
return 0;
}
static int rksd_check_image_type(uint8_t type)
{
if (type == IH_TYPE_RKSD)
return EXIT_SUCCESS;
else
return EXIT_FAILURE;
}
/* We pad the file out to a fixed size - this method returns that size */
static int rksd_vrec_header(struct image_tool_params *params,
struct image_type_params *tparams)
{
int pad_size;
pad_size = RKSD_SPL_HDR_START + RK_MAX_CODE1_SIZE;
debug("pad_size %x\n", pad_size);
return pad_size - params->file_size;
}
/*
* rk_sd parameters
*/
U_BOOT_IMAGE_TYPE(
rksd,
"Rockchip SD Boot Image support",
RKSD_HEADER_LEN,
dummy_hdr,
rksd_check_params,
rksd_verify_header,
rksd_print_header,
rksd_set_header,
rksd_extract_subimage,
rksd_check_image_type,
NULL,
rksd_vrec_header
);
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment