1a9f81779e
Use the same 'itl' (for image-tool) whenever this parameter is passed around. This makes it easier to recognise. Move away from using the word 'parameters', since it contains essentially all of the info about the tool, not just parameters. Use 'info' instead. Signed-off-by: Simon Glass <sjg@chromium.org>
92 lines
2.1 KiB
C
92 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2015 Google, Inc
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* Written by Simon Glass <sjg@chromium.org>
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*
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* See README.rockchip for details of the rkspi format
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*/
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#include "imagetool.h"
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#include <image.h>
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#include <rc4.h>
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#include "mkimage.h"
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#include "rkcommon.h"
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enum {
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RKSPI_SECT_LEN = RK_BLK_SIZE * 4,
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};
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static void rkspi_set_header(void *buf, struct stat *sbuf, int ifd,
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struct imgtool *itl)
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{
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int sector;
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unsigned int size;
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size = itl->orig_file_size;
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rkcommon_set_header(buf, sbuf, ifd, itl);
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/*
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* Spread the image out so we only use the first 2KB of each 4KB
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* region. This is a feature of the SPI format required by the Rockchip
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* boot ROM. Its rationale is unknown.
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*/
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if (itl->vflag)
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fprintf(stderr, "Spreading spi image from %u to %u\n",
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size, itl->file_size);
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for (sector = size / RKSPI_SECT_LEN - 1; sector >= 0; sector--) {
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debug("sector %u\n", sector);
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memmove(buf + sector * RKSPI_SECT_LEN * 2,
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buf + sector * RKSPI_SECT_LEN,
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RKSPI_SECT_LEN);
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memset(buf + sector * RKSPI_SECT_LEN * 2 + RKSPI_SECT_LEN,
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'\0', RKSPI_SECT_LEN);
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}
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}
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static int rkspi_check_image_type(uint8_t type)
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{
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if (type == IH_TYPE_RKSPI)
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return EXIT_SUCCESS;
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else
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return EXIT_FAILURE;
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}
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/*
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* The SPI payload needs to make space for odd half-sector layout used in flash
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* (i.e. only the first 2K of each 4K sector is used).
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*/
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static int rkspi_vrec_header(struct imgtool *itl, struct imgtool_funcs *tparams)
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{
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rkcommon_vrec_header(itl, tparams);
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/*
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* Converting to the SPI format (i.e. splitting each 4K page into two
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* 2K subpages and then padding these 2K pages up to take a complete
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* 4K sector again) which will double the image size.
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*/
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itl->file_size = ROUND(itl->file_size, RKSPI_SECT_LEN) << 1;
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/* Ignoring pad len, since we are using our own copy_image() */
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return 0;
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}
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/*
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* rk_spi parameters
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*/
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U_BOOT_IMAGE_TYPE(
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rkspi,
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"Rockchip SPI Boot Image support",
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0,
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NULL,
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rkcommon_check_params,
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rkcommon_verify_header,
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rkcommon_print_header,
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rkspi_set_header,
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NULL,
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rkspi_check_image_type,
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NULL,
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rkspi_vrec_header
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);
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