mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
dd39bcaffb
Instead of creating a rockchip SPL SD card image with 32KB of zeros which can be written to the start of an SD card, create the images with only the useful data that should be written to an offset of 32KB on the SD card. The first 32 kilobytes aren't needed for bootup and only serve as convenient way of accidentally obliterating your partition table. Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk> Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
98 lines
2.0 KiB
C
98 lines
2.0 KiB
C
/*
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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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* SPDX-License-Identifier: GPL-2.0+
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*
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* See README.rockchip for details of the rksd 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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RKSD_SPL_HDR_START = RK_CODE1_OFFSET * RK_BLK_SIZE,
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RKSD_SPL_START = RKSD_SPL_HDR_START + 4,
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RKSD_HEADER_LEN = RKSD_SPL_START,
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};
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static char dummy_hdr[RKSD_HEADER_LEN];
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static int rksd_check_params(struct image_tool_params *params)
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{
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return 0;
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}
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static int rksd_verify_header(unsigned char *buf, int size,
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struct image_tool_params *params)
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{
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return 0;
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}
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static void rksd_print_header(const void *buf)
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{
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}
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static void rksd_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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unsigned int size;
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int ret;
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size = params->file_size - RKSD_SPL_HDR_START;
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ret = rkcommon_set_header(buf, 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 not boot\n",
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size);
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}
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memcpy(buf + RKSD_SPL_HDR_START, "RK32", 4);
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}
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static int rksd_extract_subimage(void *buf, struct image_tool_params *params)
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{
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return 0;
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}
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static int rksd_check_image_type(uint8_t type)
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{
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if (type == IH_TYPE_RKSD)
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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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/* We pad the file out to a fixed size - this method returns that size */
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static int rksd_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 pad_size;
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pad_size = RKSD_SPL_HDR_START + RK_MAX_CODE1_SIZE;
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debug("pad_size %x\n", pad_size);
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return pad_size - params->file_size;
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}
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/*
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* rk_sd parameters
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*/
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U_BOOT_IMAGE_TYPE(
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rksd,
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"Rockchip SD Boot Image support",
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RKSD_HEADER_LEN,
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dummy_hdr,
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rksd_check_params,
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rksd_verify_header,
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rksd_print_header,
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rksd_set_header,
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rksd_extract_subimage,
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rksd_check_image_type,
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NULL,
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rksd_vrec_header
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);
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