fpga load: Atomic updating of multiple components

- The MPM function update_component now accepts multiple components to
  be updated in one RPC call.
- Updated the property tree and image loader to match this change.
- Also added DTS loading to the image loader.

1 files changed, 17 insertions, 0 deletions

diff --git a/mpm/python/usrp_mpm/periph_manager/n310.py b/mpm/python/usrp_mpm/periph_manager/n310.py
index 84ab3ae7e..1dab1b572 100644
--- a/mpm/python/usrp_mpm/periph_manager/n310.py
+++ b/mpm/python/usrp_mpm/periph_manager/n310.py
@@ -472,11 +472,15 @@ class n310(PeriphManagerBase):
     # dboard, etc. The host is responsible for providing a compatible image
     # for the N310's current setup.
     binfile_path = '/lib/firmware/n310.bin'
+    dts_path = '/lib/firmware/n310.dts'
     # Override the list of updateable components
     updateable_components = {
         'fpga': {
             'callback': "update_fpga",
         },
+        'dts': {
+            'callback': "update_dts",
+        },
     }
 
     def __init__(self, args):
@@ -913,3 +917,16 @@ class n310(PeriphManagerBase):
             raise RuntimeError("Invalid N310 FPGA bitfile")
         # TODO: Implement reload procedure
         return True
+
+    @no_rpc
+    def update_dts(self, filepath, metadata):
+        """
+        Update the DTS image in the filesystem
+        :param filepath: path to new DTS image
+        :param metadata: Dictionary of strings containing metadata
+        """
+        self.log.trace("Updating DTS with image at {}"
+                       .format(filepath))
+        shutil.copy(filepath, self.dts_path)
+        # TODO: Compile the new dts file into a usable dtbo
+        return True