Commit graph

6 commits

Author SHA1 Message Date
Ed Swierk
a9a5f49d8f By default, the Intel 3100 LPC interface enables only I/O range 0x3f8
for both serial ports, making it challenging to use COM2 for the early
console.

Enable the traditional I/O ranges 0x3f8 for COM1 and 0x2f8 for COM2.

Signed-off-by: Ed Swierk <eswierk@arastra.com>
Acked-by: Joseph Smith <joe@settoplinux.org>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3276 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-04-30 18:29:35 +00:00
Ed Swierk
2b85b6311f Setting an integrated southbridge device (like SATA or USB2.0) to
"off" in Config.lb should cause the PCI device not to respond to
configuration requests.

Replace the existing code that I naively copied from esb6300 with
something that actually works on the 3100.

Signed-off-by: Ed Swierk <eswierk@arastra.com>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3209 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-04-01 17:14:57 +00:00
Ed Swierk
06ae639596 Tiny style fix for consistency (trivial).
Signed-off-by: Ed Swierk <eswierk@arastra.com>
Acked-by: Ed Swierk <eswierk@arastra.com>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3207 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-04-01 02:48:12 +00:00
Ed Swierk
c4e052cd50 The early init code of several Intel southbridge chipsets calls
pci_locate_device() to locate the SMBus controller and LPC bridge
devices on the PCI bus. Since these devices are always located at a
fixed PCI bus:device:function, the code can be simplified by
hardcoding the devices.

Signed-off-by: Ed Swierk <eswierk@arastra.com>
Acked-by: Corey Osgood <corey.osgood@gmail.com>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3205 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-04-01 02:36:59 +00:00
Ed Swierk
71f846c137 Like other Intel chipsets, the Intel 3100 has a TCO timer that reboots
the system automatically unless software resets the timer
periodically. The extra reboot extends boot time by several seconds.

The attached patch adds a function to the Intel 3100 southbridge code
that halts the TCO timer, thus preventing this extra reboot, and calls
the function early in the boot process on the Mt. Arvon board.

It also fixes a bug in the LPC device initialization -- the ACPI BAR
enable flag is bit 7, not bit 4.

Signed-off-by: Ed Swierk <eswierk@arastra.com>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3198 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-03-30 11:31:15 +00:00
Ed Swierk
aaea11b749 Here is an updated patch addressing most of Uwe's and Peter's
comments. Ripping out the ehci/uhci_init() code doesn't seem to have                                                                                                                         
done any harm, and I got rid of a bunch of unused junk in                                                                                                                                    
i3100_smbus.h                                                                                                                                                                                
                                                                                                                                                                                             
I left the *_set_subsystem() arguments unsigned, as that's how the                                                                                                                           
function is declared in include/device/pci.h.                                                                                                                                                
                                                                                                                                                                                             
Signed-off-by: Ed Swierk <eswierk@arastra.com>   
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3157 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-03-16 23:34:10 +00:00