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- /*
- * (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_SECT_LEN = RK_BLK_SIZE * 4,
- };
- static char dummy_hdr[RK_IMAGE_HEADER_LEN];
- 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, params);
- 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 + RK_SPL_HDR_START, rkcommon_get_spl_hdr(params),
- RK_SPL_HDR_SIZE);
- /*
- * 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--) {
- 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_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 = (rkcommon_get_spl_size(params) + 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 += RK_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",
- RK_IMAGE_HEADER_LEN,
- dummy_hdr,
- rkcommon_check_params,
- rkspi_verify_header,
- rkspi_print_header,
- rkspi_set_header,
- rkspi_extract_subimage,
- rkspi_check_image_type,
- NULL,
- rkspi_vrec_header
- );
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