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ARM: davinci: da8xx: add remoteproc support

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Add remoteproc platform device for controlling the DSP
on da8xx. The patch uses CMA-based reservation of physical
memory block for DSP use. A new kernel command-line parameter
has been added to allow boot-time specification of the physical
memory block.

Signed-off-by: Robert Tivy <[email protected]>
[[email protected]: edit commit message for readability and
style improvements]
Signed-off-by: Sekhar Nori <[email protected]>
This commit is contained in:
Robert Tivy 2013-03-28 18:41:46 -07:00 • committed by Sekhar Nori
commit 5c71d6181f
3 changed files with 97 additions and 1 deletions
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6
Documentation/kernel-parameters.txt
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@ -44,6 +44,7 @@ parameter is applicable:
AVR32 AVR32 architecture is enabled.
AX25 Appropriate AX.25 support is enabled.
BLACKFIN Blackfin architecture is enabled.
CMA Contiguous Memory Area support is enabled.
DRM Direct Rendering Management support is enabled.
DYNAMIC_DEBUG Build in debug messages and enable them at runtime
EDD BIOS Enhanced Disk Drive Services (EDD) is enabled
@ -2663,6 +2664,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
Useful for devices that are detected asynchronously
(e.g. USB and MMC devices).
rproc_mem=nn[KMG][@address]
[KNL,ARM,CMA] Remoteproc physical memory block.
Memory area to be used by remote processor image,
managed by CMA.
rw [KNL] Mount root device read-write on boot
S [KNL] Run init in single mode