kernel: update and enable full 1GB of RAM on Clearfog Base
I had no idea that I need CONFIG_HIGHMEM to be able to even *see* more
than about 750 MB of RAM on this particular ARM CPU, but hey, here it
goes. (At least there was an info message in dmesg.)
Before:
# free
total used free shared buff/cache available
Mem: 769276 47968 407976 269304 313332 438664
Swap: 0 0 0
Now:
# free
total used free shared buff/cache available
Mem: 1029352 49392 894400 43168 85560 913896
Swap: 0 0 0
Also update to the latest stable (our patches are available as cesnet/2020-04-29).
Change-Id: I6cabd684fcfbe78a2718130ae46ca7f77b4c8228
diff --git a/board/czechlight/clearfog/linux.fragment b/board/czechlight/clearfog/linux.fragment
index 744e96d..71cd8bd 100644
--- a/board/czechlight/clearfog/linux.fragment
+++ b/board/czechlight/clearfog/linux.fragment
@@ -1,3 +1,6 @@
+# enable 1GB of RAM, not just 750 MB
+CONFIG_HIGHMEM=y
+
# this is a part of the Clearfog Base carrier
CONFIG_SENSORS_MCP3021=y