mirror of
https://github.com/brain-hackers/u-boot-brain
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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
107 lines
2.8 KiB
C
107 lines
2.8 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 image_tool_params *params)
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{
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int sector;
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unsigned int size;
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int ret;
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size = params->orig_file_size;
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ret = rkcommon_set_header(buf, size, params);
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debug("size %x\n", size);
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if (ret) {
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/* TODO(sjg@chromium.org): This method should return an error */
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printf("Warning: SPL image is too large (size %#x) and will "
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"not boot\n", size);
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}
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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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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 be padded out to make space for odd half-sector
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* layout used in flash (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 image_tool_params *params,
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struct image_type_params *tparams)
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{
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int padding = rkcommon_vrec_header(params, tparams, RK_INIT_SIZE_ALIGN);
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/*
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* The file size has not been adjusted at this point (our caller will
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* eventually add the header/padding to the file_size), so we need to
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* add up the header_size, file_size and padding ourselves.
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*/
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int padded_size = tparams->header_size + params->file_size + padding;
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/*
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* We need to store the original file-size (i.e. before padding), as
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* imagetool does not set this during its adjustment of file_size.
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*/
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params->orig_file_size = padded_size;
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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) will will double the image size.
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*
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* Thus we return the padded_size as an additional padding requirement
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* (be sure to add this to the padding returned from the common code).
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*/
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return padded_size + padding;
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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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