mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-19 11:18:28 +00:00
3641339eff
The Rockchip boot ROM could load & run an initial spl loader, and continue to load a second level boot-loader(which stored right after the initial loader) when it returns. Modify idblock generation code to support it. Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com> Acked-by: Simon Glass <sjg@chromium.org>
119 lines
2.7 KiB
C
119 lines
2.7 KiB
C
/*
|
|
* (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 rkspi format
|
|
*/
|
|
|
|
#include "imagetool.h"
|
|
#include <image.h>
|
|
#include <rc4.h>
|
|
#include "mkimage.h"
|
|
#include "rkcommon.h"
|
|
|
|
enum {
|
|
RKSPI_SPL_HDR_START = RK_INIT_OFFSET * RK_BLK_SIZE,
|
|
RKSPI_SPL_START = RKSPI_SPL_HDR_START + 4,
|
|
RKSPI_HEADER_LEN = RKSPI_SPL_START,
|
|
RKSPI_SECT_LEN = RK_BLK_SIZE * 4,
|
|
};
|
|
|
|
static char dummy_hdr[RKSPI_HEADER_LEN];
|
|
|
|
static int rkspi_check_params(struct image_tool_params *params)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int rkspi_verify_header(unsigned char *buf, int size,
|
|
struct image_tool_params *params)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static void rkspi_print_header(const void *buf)
|
|
{
|
|
}
|
|
|
|
static void rkspi_set_header(void *buf, struct stat *sbuf, int ifd,
|
|
struct image_tool_params *params)
|
|
{
|
|
int sector;
|
|
unsigned int size;
|
|
int ret;
|
|
|
|
size = params->orig_file_size;
|
|
ret = rkcommon_set_header(buf, size);
|
|
debug("size %x\n", 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 + RKSPI_SPL_HDR_START, CONFIG_ROCKCHIP_SPL_HDR, 4);
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
for (sector = size / RKSPI_SECT_LEN - 1; sector >= 0; sector--) {
|
|
printf("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_extract_subimage(void *buf, struct image_tool_params *params)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int rkspi_check_image_type(uint8_t type)
|
|
{
|
|
if (type == IH_TYPE_RKSPI)
|
|
return EXIT_SUCCESS;
|
|
else
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
/* We pad the file out to a fixed size - this method returns that size */
|
|
static int rkspi_vrec_header(struct image_tool_params *params,
|
|
struct image_type_params *tparams)
|
|
{
|
|
int pad_size;
|
|
|
|
pad_size = (CONFIG_ROCKCHIP_MAX_SPL_SIZE + 0x7ff) / 0x800 * 0x800;
|
|
params->orig_file_size = pad_size;
|
|
|
|
/* We will double the image size due to the SPI format */
|
|
pad_size *= 2;
|
|
pad_size += RKSPI_SPL_HDR_START;
|
|
debug("pad_size %x\n", pad_size);
|
|
|
|
return pad_size - params->file_size;
|
|
}
|
|
|
|
/*
|
|
* rk_spi parameters
|
|
*/
|
|
U_BOOT_IMAGE_TYPE(
|
|
rkspi,
|
|
"Rockchip SPI Boot Image support",
|
|
RKSPI_HEADER_LEN,
|
|
dummy_hdr,
|
|
rkspi_check_params,
|
|
rkspi_verify_header,
|
|
rkspi_print_header,
|
|
rkspi_set_header,
|
|
rkspi_extract_subimage,
|
|
rkspi_check_image_type,
|
|
NULL,
|
|
rkspi_vrec_header
|
|
);
|