Clean-up some miscellaneous kruft

configs/misoc/include/.gitignore

@@ -0,0 +1 @@
+/generated

configs/sam4s-xplained-pro/TODO.txt

@@ -1,56 +0,0 @@
- - implement flash driver
-   - see arch/arm/src/stm32/stm32_flash.c and related
-     - both banks could be mapped with care taken not to erase the active code.
-       - perhaps the MPU could block code corruption?
-
-   - once implemented, the free() cmd replacement can show flash information.
-
- - Seen crashes when running serial ports below 921600
-
-    - COM34 (UART1, ttyS1) runs the smoothest with 'serialblaster' test...
-    the other two (UART0, USART1) seem to stutter...
-
-   - created a cpuhog test. Each instance takes a semaphore, burns cpu for 6ms and then releases
-     the sem to exercises semaphores passing and a busy cpu. The first two instances become a
-     producer/consumer pair using a pipe (FIFO) to exercise the fileio data passing.
-       -> no crashes with 8 instances running. (No MMU, No BASEPRI)
-       -> no crashes with 8 instances running. (MMU + BASEPRI)
-          -> not however that the serial ports are very finicky with BASEPRI enabled!
-            This setup sends single charactes for each produced or consumed block,
-            and doesn't seem to have any issues:
-              NuttShell (NSH)
-              nsh> cpuhog > /dev/ttyS1 &
-              cpuhog [5:50]
-              nsh> cpuhog > /dev/ttyS2 &
-              cpuhog [7:50]
-              nsh> cpuhog &
-              cpuhog [8:50]
-              nsh> cpuhog 2
-              cpuhog &
-              cpuhog [9:50]
-              nsh> cpuhog 3
-              cpuhog &
-              cpuhog [10:50]
-              nsh> cpuhog 4
-              cpuhog &
-              cpuhog [11:50]
-              nsh> cpuhog 5
-
-              nsh> cpuhog &
-              cpuhog [12:50]
-              nsh> cpuhog 6
-
-              nsh> cpuhog &
-              cpuhog [13:50]
-              nsh> cpuhog 7
-
- - USB serial not quite stable when pushing lots of data
-
- - UARTs don't use DMA. We may need this for high baudrates.
-   - Inbound hardware flow control requires dma.
-
-Current Test:
-
-40mA:   120Mhz (240 MHz PLL) with SDCard mounted, UART0+UART1+USART1 enabled, USB Device availible (but nothing plugged in)
-37.8mA: 120Mhz (120 MHz PLL) with SDCard mounted, UART0+UART1+USART1 enabled
-16.9mA:  "" with WFI added to up_idle()

tools/showsize.sh

@@ -3,7 +3,8 @@
 # tools/showsize.sh
 #
 #   Copyright (C) 2016 Gregory Nutt. All rights reserved.
-#   Author: Lorenz Meier
+#   Author: Lorenz Meier (Original concept)
+#           Gregory Nutt (This instantiation)
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions
@@ -37,7 +38,8 @@
 # set -x
 
 # Host nm should always work
-#NM=arm-none-eabi-nm
+# vs. NM=arm-none-eabi-nm
+
 NM=nm
 
 # This should be executed from the top-level NuttX directory
@@ -60,8 +62,10 @@ else
   fi
 fi
 
+# Show what we were asked for
 
 echo "TOP 10 BIG DATA"
 $NM --print-size --size-sort --radix dec -C $NUTTX | grep ' [DdBb] ' | tail -20
+
 echo "TOP 10 BIG CODE"
 $NM --print-size --size-sort --radix dec -C $NUTTX | grep ' [TtWw] ' | tail -20