ARM: davinci: da8xx: add remoteproc support

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 <rtivy@ti.com>
[nsekhar@ti.com: edit commit message for readability and
style improvements]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 4609e81dbc37..4a6d96214eed 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -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