EBC Exercise 25 Configuring U-boot - Revision history

Yoder at 14:13, 9 November 2012

2012-11-09T14:13:14Z

2012-11-09T14:11:25Z

‎bitbake: Removed

2012-11-08T16:12:10Z

‎Assignment: spelling

2012-11-05T17:28:25Z

‎Assignment

2012-10-22T12:56:08Z

‎Assignment

2012-10-15T15:22:24Z

‎Assignment

2012-10-15T15:10:20Z

‎Assignment

2012-10-15T15:09:42Z

‎Compiling U-boot: Added mounting mmcblk0p1

2012-10-09T15:27:00Z

‎bitbake: Updated for 2012

2012-07-17T19:34:30Z

@@ Line 3: / Line 3: @@
 {{YoderHead}}
-This follows the approach taken in [[EBC Exercise 13 Configuring the Kernel]].  We'll use '''bitbake''' to get the source files for U-boot and then we'll edit them.
+In [[EBC_Exercise_08_Installing_Development_Tools#DAS_U-boot]]  you learned how to download, compile and run U-boot, here we'll configure it.
 == Compiling U-boot ==

← Older revision		Revision as of 14:11, 9 November 2012
Line 4:		Line 4:

	This follows the approach taken in [[EBC Exercise 13 Configuring the Kernel]]. We'll use '''bitbake''' to get the source files for U-boot and then we'll edit them.		This follows the approach taken in [[EBC Exercise 13 Configuring the Kernel]]. We'll use '''bitbake''' to get the source files for U-boot and then we'll edit them.
−
−	~~== bitbake ==~~
−
−	When you did [[EBC Exercise 22 Cross-Compiling and Finding the Right Kernel]] u-boot was downloaded and compiled. If you used the default configure, the source code was removed once it was done. Check and see:
−
−	~~host$ '''cd ~/BeagleBoard/oe/build/tmp-angstrom_v2012_05-eglibc/work/beagleboard-angstrom-linux-gnueabi/'''~~
−	~~host$ '''ls'''~~
−
−	~~You should see a directory starting with <code>u-boot-</code>. The rest of the name tells what version you have. Change to that directory and see what's there:~~
−
−	~~host$ '''cd u-boot-*'''~~
−	~~host$ '''ls'''~~
−
−	~~If you see a '''git''' directory, you are in luck. If you see just a '''temp''' directory you need to go back to [[EBC Exercise 22 Cross-Compiling and Finding the Right Kernel]] and get it installed.~~
−
−	~~Once you have the '''git''' directory, ''cd'' to it and look around.~~

	== Compiling U-boot ==		== Compiling U-boot ==

@@ Line 58: / Line 58: @@
 # Modify u-boot to include your initials in the prompt. (Hint:  Look for the '''omap3_beagle.h''' file for the xM or '''am335x_evm.h''' for the bone.)
-# Learn what is done when the '''boot''' command in entered in u-boot.
+# Learn what is done when the '''boot''' command is entered in u-boot.
 # Find where the code for boot is defined in the u-boot source.

← Older revision		Revision as of 17:28, 5 November 2012
Line 56:		Line 56:
	== <span style="color:green">Assignment</span> ==		== <span style="color:green">Assignment</span> ==

−	~~<blockquote>Unfortunately I'm unable to get u-boot to run at this time, so no assignment until further notice.~~
−	~~</blockquote>~~

	# Modify u-boot to include your initials in the prompt. (Hint: Look for the '''omap3_beagle.h''' file for the xM or '''am335x_evm.h''' for the bone.)		# Modify u-boot to include your initials in the prompt. (Hint: Look for the '''omap3_beagle.h''' file for the xM or '''am335x_evm.h''' for the bone.)

@@ Line 59: / Line 59: @@
 </blockquote>
-# Modify u-boot to include your initials in the prompt. (Hint:  Look for the omap3_beagle.h file.)
+# Modify u-boot to include your initials in the prompt. (Hint:  Look for the '''omap3_beagle.h''' file for the xM or '''am335x_evm.h''' for the bone.)
 # Learn what is done when the '''boot''' command in entered in u-boot.
 # Find where the code for boot is defined in the u-boot source.

← Older revision		Revision as of 15:22, 15 October 2012
Line 55:		Line 55:

	== <span style="color:green">Assignment</span> ==		== <span style="color:green">Assignment</span> ==
		+
		+	<blockquote>Unfortunately I'm unable to get u-boot to run at this time, so no assignment until further notice.
		+	</blockquote>

	# Modify u-boot to include your initials in the prompt. (Hint: Look for the omap3_beagle.h file.)		# Modify u-boot to include your initials in the prompt. (Hint: Look for the omap3_beagle.h file.)

@@ Line 68: / Line 68: @@
   u-boot# '''print bootcmd'''
   bootcmd=if mmc rescan ${mmcdev}; then if userbutton; then setenv bootenv user.txt;fi;echo SD/MMC found on device ${mmcdev};if run loadbootenv; then echo Loaded environment from ${bootenv};run importbootenv;fi;if test -n $uenvcmd; then echo Running uenvcmd ...;run uenvcmd;fi;if run loaduimage; then run mmcboot;fi;fi;run nandboot;
 {{YoderFoot}}

@@ Line 27: / Line 27: @@
   host$ '''source ~/.oe/crossCompileEnv.sh'''
   host$ '''make'''
 == <span style="color:green">Assignment</span> ==

@@ Line 7: / Line 7: @@
 == bitbake ==
-When you did [[EBC Exercise 12 Cross-Compiling and Finding the Right Kernel]] u-boot was downloaded and compiled.  If you used the default configure, the source code was removed once it was done.  Check and see:
+When you did [[EBC Exercise 22 Cross-Compiling and Finding the Right Kernel]] u-boot was downloaded and compiled.  If you used the default configure, the source code was removed once it was done.  Check and see:
-  host$ '''cd ~/BeagleBoard/oe/build/tmp-angstrom_2010_x-eglibc/work/beagleboard-angstrom-linux-gnueabi'''
+  host$ '''cd ~/BeagleBoard/oe/build/tmp-angstrom_v2012_05-eglibc/work/beagleboard-angstrom-linux-gnueabi/'''
   host$ '''ls'''
@@ Line 17: / Line 17: @@
   host$ '''ls'''
-If you see a '''git''' directory, you are in luck. If you see just a '''temp''' directory you need to go back to [[EBC Exercise 12 Cross-Compiling and Finding the Right Kernel]] and get it installed.
+If you see a '''git''' directory, you are in luck. If you see just a '''temp''' directory you need to go back to [[EBC Exercise 22 Cross-Compiling and Finding the Right Kernel]] and get it installed.
 Once you have the '''git''' directory, ''cd'' to it and look around.