update TODO file

Many things are already done, some new things came up.

Signed-off-by: Carsten Schlote <schlote@vahanus.net>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

TODO

@@ -4,35 +4,37 @@ TODO
 [ ] ask jbe about:
     ./commands/Makefile:40:obj-$(CONFIG_SIMPLE_PARSER)      += setenv.o
 [ ] bark on partition not ending on flash sector boundaries
-[ ] rsc: switching on CONFIG_AUTO_COMPLETE fails, because env_complete()
-    isn't there
 [ ] distclean doesn't work without a config
-[ ] Every driver should have a remove function
+[ ] Every driver should have a remove function.
+    (It must have. Currently there is no provision to given to remove my
+    interrupt handlers and to reset all hardware in use, before the target
+    OS is called. csc 21.03.2008 19:50:34)
+[ ] Global shutdown_drivers() function is needed to carefully clean up all
+    interrupt handlers and reset hardware to initial post reset or otherwise
+    save state.
+    (Ideally the hardware is set back to post-reset state after this call.
+    Run-up and run-down should be reentrant, so if bootm is failing the system
+    can re-initialize devices. csc 21.03.2008 19:48:49)
 [ ] Clean up make system. Currently I think there are many things from the
     Linux make system which are not needed for U-Boot.
+    (Please retain definitions and related for module loading and relocation, so
+    that special U-Boot modules containing an ELF object can be linked to the
+    running U-Boot. csc 21.03.2008 19:52:49)
 [ ] get/set for nonextisting parameters crashes
 [ ] There is a xmalloc function which panics when out of memory. Use this
     function where we don't want to check for oom. Same applies to
     strdup/xstrdup.
 [ ] cleanup common.h. There are far too many things in it where we better have
     a seperate header file.
+    (Use doxygen to track header file hierachy)
 [ ] Rewrite network stack. The one-loop-for-all-protocols stack is just too
     ugly and big and uses thousands of global variables. Identify common
     functions and make a loop per network protocol
 [-] Cleanup cpu/*. Many functions there are not cpu specific. For example the
     cache functions for arm are common for most arm processors. (done for ARM)
+    (I will check this for m68k arch - csc 21.03.2008 19:56:24)
 [ ] Board support should go to arch/*/boards/*
 [ ] Move SoC specific header files from include/ to include/asm/arch/
-[ ] The header files in include/asm-linux/ are i386 specific. Make it work on
-    your i-Book (bigendian...)
-[ ] Globbing support? Might be too expensive, but on the other hand, if you
-    have the space, why not?
-[ ] Implement protect/unprotect support for cfi devices.
-[ ] Implement a command 'countdown' or similar. It should delay the boot
-    process and interrupt it if a certain string is received. The string could
-    be any key, ctrl-c or a certain string. Maybe like this:
-    countdown -m msg -t timeout -x [ctrl-c|anykey|string]
-    If done, remove the corresponding stuff from common/main.c
 [ ] Several .c/.h files do not have GNU/copyright headers.
 [ ] The cramfs driver currently uses direct memory accesses instead of read().
     This disqualifies it for real block devices.
@@ -40,6 +42,8 @@ TODO
 	[ ] driver model
 	[ ] device parameter
 	[ ] big picture
+[ ] Add example driver and filesystem for reference purposes. Or denote a driver
+    and a filesystem to be the reference.
 [ ] realloc seems to crash without further notice when out of memory.
 [ ] implement a mmap() function. Of course we cannot really mmap without mmu,
     but for memory mapped devices like nor flash we could provide a pointer to
@@ -51,6 +55,32 @@ TODO
 [ ] command line editing is somewhat broken
 [ ] how to select a ethernet channel for tftp when more than one interface
     of this type exists in the system?
+[ ] Cleanup headers. I propose to rearrange the files in a way to reflect the
+    organisation of the source tree. This requires changing the include paths
+    in nearly all files, therefore a merge window for this change must be
+    opened and merge in of all other topic branches must happen before.
+    Week 23 or 42 issue? csc, 21.03.2008 19:36:06
+[ ] Merge similiar information into a single common and a single arch dependant
+    file. E.g. all those general typedefs should be located in include types.h
+    and arch/asm/types.h. csc 21.03.2008 19:38:57
+[ ] Get rid of the current linux include dir. It should only contain information
+    required to boot linux. csc 21.03.2008 19:39:02
+[ ] Unify source headers to show up the GPL lic stuff followed by a doxygen file
+    description.
+[ ] Enhance and complete doxygen comments.
+[ ] Eliminate all #ifdef CONFIG_??? in C code. Disabled APIs should be defined
+    as empty macros, so that code is removed by the compiler, not the
+    preprocessor.
+    The #ifdefs should be located in their related header files only.
+[ ] Create an example board, which implements all functions stubs required
+    to compile a full U-Boot build. Functions are just stubs containing a
+    panic() call - Real code must be filled in accordingly.
+    Can be copied as starting point for a new target board.
+[ ] Add generic PCI bios code and a PCI bus driver model. The driver should
+    be configured by an appropriate platformconfig. Detected PCI buses and
+    devices should be represented as a hierachical tree in /dev
+[ ] Work out, how to mount driver on PCI devices. The mechanism should be
+    transparent to the driver code.
 
 DONE
 ----
@@ -70,4 +100,16 @@ DONE
 [x] Implement a info command for malloced space. Use it to find memory holes.
 [x] patch hush.c so that you can get/set device parameters with dev.param= and remove
     get/set applets
+[x] rsc: switching on CONFIG_AUTO_COMPLETE fails, because env_complete()
+    isn't there
+[x] The header files in include/asm-linux/ are i386 specific. Make it work on
+    your i-Book (bigendian...)
+[x] Globbing support? Might be too expensive, but on the other hand, if you
+    have the space, why not?
+[x] Implement protect/unprotect support for cfi devices.
+[x] Implement a command 'countdown' or similar. It should delay the boot
+    process and interrupt it if a certain string is received. The string could
+    be any key, ctrl-c or a certain string. Maybe like this:
+    countdown -m msg -t timeout -x [ctrl-c|anykey|string]
+    If done, remove the corresponding stuff from common/main.c