mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-22 18:09:03 +09:00
![Steve Rae](/assets/img/avatar_default.png)
update to provide usable implementation to U-Boot Signed-off-by: Steve Rae <srae@broadcom.com>
244 lines
7.2 KiB
C
244 lines
7.2 KiB
C
/*
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* Copyright (c) 2009, Google Inc.
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* All rights reserved.
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*
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* Copyright (c) 2009-2014, The Linux Foundation. All rights reserved.
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* Portions Copyright 2014 Broadcom Corporation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of The Linux Foundation nor
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* the names of its contributors may be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* NOTE:
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* Although it is very similar, this license text is not identical
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* to the "BSD-3-Clause", therefore, DO NOT MODIFY THIS LICENSE TEXT!
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*/
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#include <config.h>
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#include <common.h>
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#include <aboot.h>
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#include <malloc.h>
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#include <part.h>
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#include <sparse_format.h>
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void write_sparse_image(block_dev_desc_t *dev_desc,
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disk_partition_t *info, const char *part_name,
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void *data, unsigned sz)
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{
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lbaint_t blk;
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lbaint_t blkcnt;
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lbaint_t blks;
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uint32_t bytes_written = 0;
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unsigned int chunk;
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unsigned int chunk_data_sz;
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uint32_t *fill_buf = NULL;
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uint32_t fill_val;
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sparse_header_t *sparse_header;
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chunk_header_t *chunk_header;
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uint32_t total_blocks = 0;
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int i;
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/* Read and skip over sparse image header */
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sparse_header = (sparse_header_t *) data;
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data += sparse_header->file_hdr_sz;
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if (sparse_header->file_hdr_sz > sizeof(sparse_header_t))
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{
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/*
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* Skip the remaining bytes in a header that is longer than
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* we expected.
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*/
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data += (sparse_header->file_hdr_sz - sizeof(sparse_header_t));
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}
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debug("=== Sparse Image Header ===\n");
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debug("magic: 0x%x\n", sparse_header->magic);
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debug("major_version: 0x%x\n", sparse_header->major_version);
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debug("minor_version: 0x%x\n", sparse_header->minor_version);
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debug("file_hdr_sz: %d\n", sparse_header->file_hdr_sz);
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debug("chunk_hdr_sz: %d\n", sparse_header->chunk_hdr_sz);
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debug("blk_sz: %d\n", sparse_header->blk_sz);
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debug("total_blks: %d\n", sparse_header->total_blks);
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debug("total_chunks: %d\n", sparse_header->total_chunks);
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/* verify sparse_header->blk_sz is an exact multiple of info->blksz */
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if (sparse_header->blk_sz !=
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(sparse_header->blk_sz & ~(info->blksz - 1))) {
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printf("%s: Sparse image block size issue [%u]\n",
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__func__, sparse_header->blk_sz);
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fastboot_fail("sparse image block size issue");
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return;
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}
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puts("Flashing Sparse Image\n");
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/* Start processing chunks */
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blk = info->start;
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for (chunk=0; chunk<sparse_header->total_chunks; chunk++)
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{
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/* Read and skip over chunk header */
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chunk_header = (chunk_header_t *) data;
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data += sizeof(chunk_header_t);
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if (chunk_header->chunk_type != CHUNK_TYPE_RAW) {
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debug("=== Chunk Header ===\n");
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debug("chunk_type: 0x%x\n", chunk_header->chunk_type);
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debug("chunk_data_sz: 0x%x\n", chunk_header->chunk_sz);
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debug("total_size: 0x%x\n", chunk_header->total_sz);
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}
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if (sparse_header->chunk_hdr_sz > sizeof(chunk_header_t))
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{
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/*
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* Skip the remaining bytes in a header that is longer
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* than we expected.
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*/
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data += (sparse_header->chunk_hdr_sz -
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sizeof(chunk_header_t));
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}
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chunk_data_sz = sparse_header->blk_sz * chunk_header->chunk_sz;
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blkcnt = chunk_data_sz / info->blksz;
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switch (chunk_header->chunk_type)
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{
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case CHUNK_TYPE_RAW:
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if (chunk_header->total_sz !=
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(sparse_header->chunk_hdr_sz + chunk_data_sz))
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{
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fastboot_fail(
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"Bogus chunk size for chunk type Raw");
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return;
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}
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if (blk + blkcnt > info->start + info->size) {
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printf(
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"%s: Request would exceed partition size!\n",
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__func__);
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fastboot_fail(
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"Request would exceed partition size!");
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return;
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}
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blks = dev_desc->block_write(dev_desc->dev, blk, blkcnt,
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data);
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if (blks != blkcnt) {
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printf("%s: Write failed " LBAFU "\n",
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__func__, blks);
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fastboot_fail("flash write failure");
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return;
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}
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blk += blkcnt;
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bytes_written += blkcnt * info->blksz;
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total_blocks += chunk_header->chunk_sz;
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data += chunk_data_sz;
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break;
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case CHUNK_TYPE_FILL:
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if (chunk_header->total_sz !=
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(sparse_header->chunk_hdr_sz + sizeof(uint32_t)))
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{
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fastboot_fail(
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"Bogus chunk size for chunk type FILL");
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return;
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}
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fill_buf = (uint32_t *)
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memalign(ARCH_DMA_MINALIGN,
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ROUNDUP(info->blksz,
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ARCH_DMA_MINALIGN));
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if (!fill_buf)
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{
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fastboot_fail(
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"Malloc failed for: CHUNK_TYPE_FILL");
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return;
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}
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fill_val = *(uint32_t *)data;
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data = (char *) data + sizeof(uint32_t);
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for (i = 0; i < (info->blksz / sizeof(fill_val)); i++)
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fill_buf[i] = fill_val;
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if (blk + blkcnt > info->start + info->size) {
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printf(
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"%s: Request would exceed partition size!\n",
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__func__);
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fastboot_fail(
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"Request would exceed partition size!");
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return;
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}
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for (i = 0; i < blkcnt; i++) {
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blks = dev_desc->block_write(dev_desc->dev,
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blk, 1, fill_buf);
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if (blks != 1) {
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printf(
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"%s: Write failed, block # " LBAFU "\n",
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__func__, blkcnt);
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fastboot_fail("flash write failure");
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free(fill_buf);
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return;
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}
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blk++;
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}
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bytes_written += blkcnt * info->blksz;
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total_blocks += chunk_data_sz / sparse_header->blk_sz;
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free(fill_buf);
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break;
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case CHUNK_TYPE_DONT_CARE:
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total_blocks += chunk_header->chunk_sz;
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break;
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case CHUNK_TYPE_CRC32:
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if (chunk_header->total_sz !=
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sparse_header->chunk_hdr_sz)
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{
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fastboot_fail(
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"Bogus chunk size for chunk type Dont Care");
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return;
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}
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total_blocks += chunk_header->chunk_sz;
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data += chunk_data_sz;
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break;
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default:
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printf("%s: Unknown chunk type: %x\n", __func__,
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chunk_header->chunk_type);
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fastboot_fail("Unknown chunk type");
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return;
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}
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}
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debug("Wrote %d blocks, expected to write %d blocks\n",
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total_blocks, sparse_header->total_blks);
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printf("........ wrote %u bytes to '%s'\n", bytes_written, part_name);
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if (total_blocks != sparse_header->total_blks)
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fastboot_fail("sparse image write failure");
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fastboot_okay("");
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return;
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}
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