Go to file
Felix Held c1869666f0 mainboards/asrock/e350m1: Use driver for Nuvoton NCT5572D superio chip
On the ASRock E350M1 a Nuvoton NCT5572D is used as SuperIO-chip. The coreboot
port to this board however used the driver of the Winbond W83627HF SuperIO,
which is compatible enough to get most stuff working, but which clears bit 6 in
register 0x2B. This switches the function of pin 38 of the NCT5572D from
RSTOUT1# output to GP36. The PERST# pin of the ethernet chip and the
unpopulated miniPCIe slot are connected to this pin, so they didn't get reset
during a reboot.

Using the newly added driver for the Nuvoton NCT5572D fixes this problem.

There is also a trace from the pin 37 of the SuperIO, which can be configured
as RSTOUT2#, to pin 82 of the USB3-chip with unknown function.

As with the wrong driver, PS/2 keyboard and mouse do work in SeaBIOS and GRUB
but not in Linux.

Change-Id: I4bc78406afd3b0e10a1b04b561147e0ed94cc494
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: http://review.coreboot.org/6266
Reviewed-by: Nicolas Reinecke <nr@das-labor.org>
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
2014-10-30 11:41:26 +01:00
3rdparty@f37e0e64ac AMD Steppe Eagle: Update reference to BLOBs repo (3rdparty) 2014-09-01 00:37:16 +02:00
documentation mkelfimage: remove 2014-10-08 14:27:24 +02:00
payloads libpayload: usb: ehci: Honor 10ms reset recovery period 2014-10-29 19:20:59 +01:00
src mainboards/asrock/e350m1: Use driver for Nuvoton NCT5572D superio chip 2014-10-30 11:41:26 +01:00
util A tool for IPQ8064 encapsulation 2014-10-28 19:31:26 +01:00
.gitignore .gitignore: add 3 executables that can be built in util/ 2014-08-11 06:26:01 +02:00
.gitmodules nvidia/cbootimage: avoid upstream's build system 2014-10-02 10:26:58 +02:00
.gitreview add .gitreview 2012-11-01 23:13:39 +01:00
COPYING update license template. 2006-08-12 22:03:36 +00:00
Makefile Makefile: Fix HOSTCC for clang 2014-10-30 07:46:05 +01:00
Makefile.inc Kconfig: Allow native vga init to be selectable for SeaBIOS payload 2014-10-04 07:44:49 +02:00
README Update README with newer version of the text from the web page 2011-06-15 10:16:33 +02:00
toolchain.inc Pipe stderr to /dev/null when getting LIBCLANG_RT_FILE_NAME 2014-10-29 16:19:12 +01:00

README

-------------------------------------------------------------------------------
coreboot README
-------------------------------------------------------------------------------

coreboot is a Free Software project aimed at replacing the proprietary BIOS
(firmware) found in most computers.  coreboot performs a little bit of
hardware initialization and then executes additional boot logic, called a
payload.

With the separation of hardware initialization and later boot logic,
coreboot can scale from specialized applications that run directly
firmware, run operating systems in flash, load custom
bootloaders, or implement firmware standards, like PC BIOS services or
UEFI. This allows for systems to only include the features necessary
in the target application, reducing the amount of code and flash space
required.

coreboot was formerly known as LinuxBIOS.


Payloads
--------

After the basic initialization of the hardware has been performed, any
desired "payload" can be started by coreboot.

See http://www.coreboot.org/Payloads for a list of supported payloads.


Supported Hardware
------------------

coreboot supports a wide range of chipsets, devices, and mainboards.

For details please consult:

 * http://www.coreboot.org/Supported_Motherboards
 * http://www.coreboot.org/Supported_Chipsets_and_Devices


Build Requirements
------------------

 * gcc / g++
 * make

Optional:

 * doxygen (for generating/viewing documentation)
 * iasl (for targets with ACPI support)
 * gdb (for better debugging facilities on some targets)
 * ncurses (for 'make menuconfig')
 * flex and bison (for regenerating parsers)


Building coreboot
-----------------

Please consult http://www.coreboot.org/Build_HOWTO for details.


Testing coreboot Without Modifying Your Hardware
------------------------------------------------

If you want to test coreboot without any risks before you really decide
to use it on your hardware, you can use the QEMU system emulator to run
coreboot virtually in QEMU.

Please see http://www.coreboot.org/QEMU for details.


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

Further details on the project, a FAQ, many HOWTOs, news, development
guidelines and more can be found on the coreboot website:

  http://www.coreboot.org

You can contact us directly on the coreboot mailing list:

  http://www.coreboot.org/Mailinglist


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

The copyright on coreboot is owned by quite a large number of individual
developers and companies. Please check the individual source files for details.

coreboot is licensed under the terms of the GNU General Public License (GPL).
Some files are licensed under the "GPL (version 2, or any later version)",
and some files are licensed under the "GPL, version 2". For some parts, which
were derived from other projects, other (GPL-compatible) licenses may apply.
Please check the individual source files for details.

This makes the resulting coreboot images licensed under the GPL, version 2.