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Carl-Daniel Hailfinger 1d7db86b6b The SB600 RPR documentation does not mention what to do if SATA_BAR0+6 
is no longer 0xA0 or 0xB0. It simply assumes that will never happen.
My 500 GB Seagate Barracuda ST3500820AS triggers that corner case on the
first init after poweron.
The current code hangs forever with my drive. Fix this by rerunning the
init sequence after SATA_BAR0+6 is no longer 0xA0 or 0xB0.

Add support for SATA port 2-4 (Primary Slave, Secondary Master,
Secondary Slave).

If only the 2nd SATA port is connected and the hardware acts strangely
(contrary to documentation), it will print the error message below and
continue anyway. The official AMD asm code behaves the same way.
SATA port 0 status = 0
No Primary Master SATA drive on Slot0
SATA port 1 status = 23
0x6=7f, 0x7=7f
drive no longer selected after 0 ms, retrying init
[8 repetitions]
0x6=7f, 0x7=7f
drive no longer selected after 0 ms, retrying init
Primary Slave device is not ready after 10 tries

Activate and improve debug messages for SPEW log level.

Fix some comments.

New log messages look like this:
PCI: 00:12.0 init
sata_bar0=3020
sata_bar1=3060
sata_bar2=3030
sata_bar3=3070
sata_bar4=3000
sata_bar5=fc309000
SATA port 0 status = 23
0x6=a0, 0x7=80
drive detection not yet completed, waiting...
0x6=a0, 0x7=80
drive detection not yet completed, waiting...
[... 281 repetitions ...]
0x6=0, 0x7=50
drive no longer selected after 2820 ms, retrying init
drive detection done after 0 ms
Primary Master device is ready after 2 tries
SATA port 1 status = 23
drive detection done after 0 ms
Primary Slave device is ready after 1 tries
SATA port 2 status = 0
No Secondary Master SATA drive on Slot2
SATA port 3 status = 0
No Secondary Slave SATA drive on Slot3

With this patch, my Asus M2A-VM boots into Linux without problems.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Zheng Bao <zheng.bao@amd.com>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3845 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
 		2008-12-29 09:35:00 +00:00
documentation Rename almost all occurences of LinuxBIOS to coreboot. 2008-01-18 15:08:58 +00:00
payloads libpayload: Fix immediate rebuild after a clean 2008-11-25 16:41:21 +00:00
src The SB600 RPR documentation does not mention what to do if SATA_BAR0+6 2008-12-29 09:35:00 +00:00
targets In the process of trying to debug some HT sync problems I added lots of 2008-12-22 09:53:24 +00:00
util If you pass a bogus layout file to the -l option flashrom will segfault. 2008-12-22 16:42:59 +00:00
COPYING update license template. 2006-08-12 22:03:36 +00:00
NEWS Rename almost all occurences of LinuxBIOS to coreboot. 2008-01-18 15:08:58 +00:00
README Rename almost all occurences of LinuxBIOS to coreboot. 2008-01-18 15:08:58 +00:00

README 

-------------------------------------------------------------------------------
Coreboot README
-------------------------------------------------------------------------------

Coreboot is a Free Software project aimed at replacing the proprietary
BIOS you can find in most of today's computers.

It performs just a little bit of hardware initialization and then executes
one of many possible payloads, e.g. a Linux kernel.


Payloads
--------

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

 * A Linux kernel
 * FILO (a simple bootloader with filesystem support)
 * GRUB2 (a free bootloader; support is in development)
 * OpenBIOS (a free IEEE1275-1994 Open Firmware implementation)
 * Open Firmware (a free IEEE1275-1994 Open Firmware implementation)
 * SmartFirmware (a free IEEE1275-1994 Open Firmware implementation)
 * GNUFI (a free, UEFI-compatible firmware)
 * Etherboot (for network booting and booting from raw IDE or FILO)
 * ADLO (for booting Windows 2000 or OpenBSD)
 * Plan 9 (a distributed operating system)
 * memtest86 (for testing your RAM)


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


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 (mostly those derived from the Linux kernel) 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.