57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2013 Google, Inc
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*
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* (C) Copyright 2012
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* Pavel Herrmann <morpheus.ibis@gmail.com>
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*/
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#include <common.h>
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#include <command.h>
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#include <mapmem.h>
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#include <asm/io.h>
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#include <dma.h>
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static int do_dma_m2m(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
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{
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int ret, len;
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unsigned long src, dst;
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src = simple_strtoul(argv[0], NULL, 16);
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dst = simple_strtoul(argv[1], NULL, 16);
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len = simple_strtoul(argv[2], NULL, 16);
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ret = dma_memcpy((void *)dst, (void *)src, len);
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return ret;
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}
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static struct cmd_tbl dma_commands[] = {
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U_BOOT_CMD_MKENT(m2m, 3, 1, do_dma_m2m, "m2m src dst len", ""),
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};
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static int do_dma(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[])
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{
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struct cmd_tbl *sub_cmd;
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int ret;
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if (argc < 2)
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return CMD_RET_USAGE;
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sub_cmd = find_cmd_tbl(argv[1], dma_commands, ARRAY_SIZE(dma_commands));
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argc -= 2;
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argv += 2;
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if ((!sub_cmd || argc > sub_cmd->maxargs) ||
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((sub_cmd->name[0] != 'm') && (argc < 1)))
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return CMD_RET_USAGE;
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ret = sub_cmd->cmd(sub_cmd, flag, argc, argv);
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return cmd_process_error(sub_cmd, ret);
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}
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U_BOOT_CMD(
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dma, 5, 1, do_dma,
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"DMA operations",
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"m2m src dst len Memory to Memory DMA copy"
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);
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