/*
* Update barebox on a v2 type internal boot (i.MX53)
*
* This constructs a DCD header, adds the specific DCD data and writes
* the resulting image to the device. Currently this handles MMC/SD
* and NAND devices.
*/
static int imx_bbu_internal_v2_update(struct bbu_handler *handler, struct bbu_data *data)
{
struct imx_internal_bbu_handler *imx_handler =
container_of(handler, struct imx_internal_bbu_handler, handler);
void *imx_pre_image = NULL;
int imx_pre_image_size;
int ret, image_len;
void *buf;
ret = imx_bbu_check_prereq(data);
if (ret)
return ret;
if (imx_handler->dcd) {
imx_pre_image_size = 0x2000;
} else {
uint32_t *barker = data->image + imx_handler->flash_header_offset;
if (*barker != IVT_BARKER) {
printf("Board does not provide DCD data and this image is no imximage\n");
return -EINVAL;
}
imx_pre_image_size = 0;
}
if (imx_handler->flags & IMX_INTERNAL_FLAG_NAND)
/* NAND needs additional space for the DBBT */
imx_pre_image_size += 0x6000;
if (imx_pre_image_size)
imx_pre_image = xzalloc(imx_pre_image_size);
if (imx_handler->dcd)
imx_bbu_internal_v2_init_flash_header(handler, data, imx_pre_image, imx_pre_image_size);
/* Create a buffer containing header and image data */
image_len = data->len + imx_pre_image_size;
buf = xzalloc(image_len);
if (imx_pre_image_size)
memcpy(buf, imx_pre_image, imx_pre_image_size);
memcpy(buf + imx_pre_image_size, data->image, data->len);
if (imx_handler->flags & IMX_INTERNAL_FLAG_NAND) {
ret = imx_bbu_internal_v2_write_nand_dbbt(imx_handler, data, buf,
image_len);
goto out_free_buf;
}
ret = imx_bbu_write_device(imx_handler, data, buf, image_len);
out_free_buf:
free(buf);
free(imx_pre_image);
return ret;
}
/*
* Update barebox on a v1 type internal boot (i.MX25, i.MX35, i.MX51)
*
* This constructs a DCD header, adds the specific DCD data and writes
* the resulting image to the device. Currently this handles MMC/SD
* devices.
*/
static int imx_bbu_internal_v1_update(struct bbu_handler *handler, struct bbu_data *data)
{
struct imx_internal_bbu_handler *imx_handler =
container_of(handler, struct imx_internal_bbu_handler, handler);
struct imx_flash_header *flash_header;
unsigned long flash_header_offset = imx_handler->flash_header_offset;
u32 *dcd_image_size;
void *imx_pre_image;
int imx_pre_image_size = 0x2000;
int ret, image_len;
void *buf;
ret = imx_bbu_check_prereq(data);
if (ret)
return ret;
printf("updating to %s\n", data->devicefile);
imx_pre_image = xzalloc(imx_pre_image_size);
flash_header = imx_pre_image + flash_header_offset;
flash_header->app_code_jump_vector = imx_handler->app_dest + 0x1000;
flash_header->app_code_barker = APP_CODE_BARKER;
flash_header->app_code_csf = 0;
flash_header->dcd_ptr_ptr = imx_handler->app_dest + flash_header_offset +
offsetof(struct imx_flash_header, dcd);
flash_header->super_root_key = 0;
flash_header->dcd = imx_handler->app_dest + flash_header_offset +
offsetof(struct imx_flash_header, dcd_barker);
flash_header->app_dest = imx_handler->app_dest;
flash_header->dcd_barker = DCD_BARKER;
flash_header->dcd_block_len = imx_handler->dcdsize;
memcpy((void *)flash_header + sizeof(*flash_header), imx_handler->dcd, imx_handler->dcdsize);
dcd_image_size = (imx_pre_image + flash_header_offset + sizeof(*flash_header) + imx_handler->dcdsize);
*dcd_image_size = ALIGN(imx_pre_image_size + data->len, 4096);
/* Create a buffer containing header and image data */
image_len = data->len + imx_pre_image_size;
buf = xzalloc(image_len);
memcpy(buf, imx_pre_image, imx_pre_image_size);
memcpy(buf + imx_pre_image_size, data->image, data->len);
ret = imx_bbu_write_device(imx_handler, data, buf, image_len);
free(buf);
free(imx_pre_image);
return ret;
}
static int imx_bbu_update(struct bbu_handler *handler, struct bbu_data *data)
{
struct imx_internal_bbu_handler *imx_handler =
container_of(handler, struct imx_internal_bbu_handler, handler);
int ret;
ret = imx_bbu_check_prereq(imx_handler, data->devicefile, data,
imx_handler->expected_type);
if (ret)
return ret;
return imx_handler->write_device(imx_handler, data);
}
