Pi Firmware: switch to atom configs for testing

Change-Id: I623026598dcc19a790ad83891d809c05ff9bc874

src/scripts/cmdline.txt

@@ -137,7 +137,7 @@
 # Important: All the properties must be on a single line, and no blank lines!
 #
 # Here's a good default for a Beeb or Master
-sampling06=3 sampling7=0,2,2,2,2,2,2,0 info=1 palette=0 deinterlace=1 scanlines=0 mux=0 elk=0 vsync=0 pllh=0 nbuffers=2 debug=0 m7disable=0
+#sampling06=3 sampling7=0,2,2,2,2,2,2,0 info=1 palette=0 deinterlace=1 scanlines=0 mux=0 elk=0 vsync=0 pllh=0 nbuffers=2 debug=0 m7disable=0
 #
 # Here's a example showing no oversampling in Mode 0..6
 # sampling06=0,4,4,4,4,4,4,2 geometry06=37,28,80,256,640,512 info=1 palette=0 deinterlace=1 scanlines=0 mux=0 elk=0 vsync=0 pllh=0 nbuffers=2 debug=1 m7disable=0
@@ -145,5 +145,5 @@ sampling06=3 sampling7=0,2,2,2,2,2,2,0 info=1 palette=0 deinterlace=1 scanlines=
 # Here's an example that might work with a UK 101
 #sampling06=4 geometry06=23,26,100,270,800,540 info=1 palette=0 deinterlace=0 scanlines=0 mux=0 elk=0 vsync=0 pllh=0 nbuffers=2 debug=1 m7disable=1
 #
-# Here's an example that might work with an Atom
-#sampling06=0 geometry06=25,16,76,240,608,480,85909091,5472,524,0 nbuffers=2 m7disable=1
+# Here's an example that might work with an Atom (CPLDv1)
+sampling06=5 geometry06=0,31,69,212,552,424,85909091,5472,524,0 nbuffers=2 m7disable=1

src/scripts/config.txt

@@ -83,12 +83,12 @@ disable_overscan=1
 ##   l/r overscan = (1920-1344)/2  = 288
 ##   t/b overscan = (1080-1080)/2  =   0
 ##
-hdmi_group=1
-hdmi_mode=31
-overscan_left=288
-overscan_right=288
-overscan_top=0
-overscan_bottom=0
+#hdmi_group=1
+#hdmi_mode=31
+#overscan_left=288
+#overscan_right=288
+#overscan_top=0
+#overscan_bottom=0
 
 ## Example using hdmi_timings
 ##
@@ -258,20 +258,35 @@ overscan_bottom=0
 #overscan_top=30
 #overscan_bottom=30
 
-## Example Atom Setting
+## Example Atom Setting (scaling by 2.0)
 ##
 ## 1920x1080 @ 60Hz
 ##
-## Scale by 1:2 - 608x480 => 1216x960
-##   l/r overscan = (1920-1216)/2  = 352
-##   t/b overscan = (1080- 960)/2  = 60
+## Scale by 1:2 - 552x424 => 1104x848
+##   l/r overscan = (1920-1104)/2  = 408
+##   t/b overscan = (1080- 848)/2  = 116
 ##
 #hdmi_group=1
 #hdmi_mode=16
-#overscan_left=352
-#overscan_right=352
-#overscan_top=60
-#overscan_bottom=60
+#overscan_left=408
+#overscan_right=408
+#overscan_top=116
+#overscan_bottom=116
+
+## Example Atom Setting *scaling by 2.5)
+##
+## 1920x1080 @ 60Hz
+##
+## Scale by 1:2.5 - 552x424 => 1380x1060
+##   l/r overscan = (1920-1104)/2  = 270
+##   t/b overscan = (1080-1060)/2  = 10
+##
+hdmi_group=1
+hdmi_mode=16
+overscan_left=270
+overscan_right=270
+overscan_top=10
+overscan_bottom=10
 
 # Further notes....
 #