coreboot-kgpe-d16/payloads/libpayload
Patrick Georgi bbc523146c libpayload: Implement usb_exit
So far it was empty and never published. It now exists and shuts down
all controllers (esp. EHCI which resets the port routers).

Change-Id: I81e355e8a05778d6397675417b085a094a6f48ee
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Reviewed-on: http://review.coreboot.org/397
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2011-11-04 22:14:29 +01:00
..
arch libpayload: Put coreboot version into lib_sysinfo 2011-11-03 19:02:55 +01:00
bin Add lib/ to the default library path of lpgcc, so -l works 2011-03-01 07:12:08 +00:00
configs libpayload: Add liblzma, libcbfs 2011-08-04 08:11:21 +02:00
crypto Use coreboot build system for libpayload, too. 2011-06-30 20:40:10 +02:00
curses libpayload: remove trailing whitespace and run dos2unix 2011-11-01 19:08:23 +01:00
drivers libpayload: Implement usb_exit 2011-11-04 22:14:29 +01:00
include libpayload: Implement usb_exit 2011-11-04 22:14:29 +01:00
lib This patch fixes payloads on certain Fedora versions 2009-07-18 15:18:22 +00:00
libc libpayload: remove trailing whitespace and run dos2unix 2011-11-01 19:08:23 +01:00
libcbfs don't scan beyond end of CBFS 2011-11-02 10:49:24 +01:00
liblzma libpayload: Add liblzma, libcbfs 2011-08-04 08:11:21 +02:00
libpci libpayload: remove trailing whitespace and run dos2unix 2011-11-01 19:08:23 +01:00
sample fix compilation of hello.elf example payload. 2010-08-28 23:23:47 +00:00
util Fix libpayload xconfig script to find coreboot utils xgcc. 2010-06-22 19:12:58 +00:00
Config.in libpayload: Add liblzma, libcbfs 2011-08-04 08:11:21 +02:00
Doxyfile Run doxygen -u on doxygen configuration files 2010-06-28 10:40:38 +00:00
LICENSES Since some people disapprove of white space cleanups mixed in regular commits 2010-04-27 06:56:47 +00:00
Makefile Fixes to the libpayload build system 2011-07-03 14:47:48 +02:00
Makefile.inc libpayload: Add liblzma, libcbfs 2011-08-04 08:11:21 +02:00
README Update repo path in libpayload readme. 2011-03-29 19:29:01 +00:00

README

-------------------------------------------------------------------------------
libpayload README
-------------------------------------------------------------------------------

libpayload is a minimal library to support standalone payloads
that can be booted with firmware like coreboot. It handles the setup
code, and provides common C library symbols such as malloc() and printf().

Note: This is _not_ a standard library for use with an operating system,
rather it's only useful for coreboot payload development!
See http://coreboot.org for details on coreboot.


Installation
------------

 $ svn co svn://coreboot.org/coreboot/trunk/payloads/libpayload

 $ cd libpayload

 $ make menuconfig

 $ make

 $ sudo make install (optional, will install into /opt per default)

As libpayload is for 32bit x86 systems only, you might have to install the
32bit libgcc version, otherwise your payloads will fail to compile.
On Debian systems you'd do 'apt-get install gcc-multilib' for example.


Usage
-----

Here's an example of a very simple payload (hello.c) and how to build it:

 #include <libpayload.h>

 int main(void)
 {
     printf("Hello, world!\n");
     return 0;
 }

Building the payload using the 'lpgcc' compiler wrapper:

 $ lpgcc -o hello.elf hello.c

Please see the sample/ directory for details.


Website and Mailing List
------------------------

The main website is http://www.coreboot.org/Libpayload.

For additional information, patches, and discussions, please join the
coreboot mailing list at http://coreboot.org/Mailinglist, where most
libpayload developers are subscribed.


Copyright and License
---------------------

See LICENSES.