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11da3403e9
For nearly all commands in U-Boot the '?' variable is handled the same way with 0 meaning success, 1 meaning any failure. Explain this in the general rules section of the cmdline documentation (with a link to a counter example) and then remove the redundant wording from most commands. We retain a section about the return value in a number of places where we are doing something such as always returning a specific value or we have useful additional information to go along with the normal return codes. Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
50 lines
875 B
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50 lines
875 B
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.. SPDX-License-Identifier: GPL-2.0-or-later
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.. index::
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single: dmareset (command)
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dmareset command
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================
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Synopsis
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--------
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::
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Usage: dmareset <channel 0-7> [<channel 0-7> ...]
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dmareset - Release PL330 DMA channel reset(s) for SoCFPGA
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Usage:
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dmareset <channel 0-7> [<channel 0-7> ...] - release reset for one or more DMA channels
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Description
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-----------
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Release the DMA channel reset *channel*.
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Parameters
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----------
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channel
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DMA channel number
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Example
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-------
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Release DMA channel(s)::
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=> dmareset 0
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PL330 DMA channel 0 reset released
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=> dmareset 1
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PL330 DMA channel 1 reset released
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=> dmareset 0 1
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PL330 DMA channel 0 reset released
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PL330 DMA channel 1 reset released
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Configuration
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-------------
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The dmareset command is only available if CONFIG_CMD_C5_PL330_DMA=y in
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"Shell scripting commands".
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