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Re: Reverting old hack

To: Bjorn Helgaas <>
Subject: Re: Reverting old hack
From: Yoichi Yuasa <>
Date: Tue, 23 Feb 2010 08:51:43 +0900
Cc:, Ralf Baechle <>,
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Hi Bjorn,

On Mon, 22 Feb 2010 13:55:28 -0700
Bjorn Helgaas <> wrote:

> On Sunday 21 February 2010 12:45:31 am Yoichi Yuasa wrote:
> > > I'd like to understand the PCI architecture of Cobalt better.  Would you
> > > mind turning on CONFIG_PCI_DEBUG and posting the dmesg log?
> > 
> > If you want to know what happen, you can see my old e-mail. 
> > 
> >
> There's not much detail there.  It would save me a lot of time if
> you could collect the complete dmesg log, /proc/iomem, and /proc/ioports.

It cannot boot without old hack.
I just got a console capture.


2> execute console=ttyS0,115200 root=/dev/sda2
elf32: 00080000 - 004220ef (800841f0) (ffffffff.80000000)
elf32: 80080000 (80080000) 3694756t + 114764t
net: interface down
Cobalt board ID: 5
pci 0000:00:07.0: BAR 6: assigned [mem 0x12000000-0x1203ffff pref]
pci 0000:00:0c.0: BAR 6: assigned [mem 0x12040000-0x1207ffff pref]
pci 0000:00:0a.0: BAR 0: assigned [mem 0x12080000-0x12080fff]
pci 0000:00:0a.0: BAR 0: set to [mem 0x12080000-0x12080fff] (PCI address 
pci 0000:00:0a.1: BAR 0: assigned [mem 0x12081000-0x12081fff]
pci 0000:00:0a.1: BAR 0: set to [mem 0x12081000-0x12081fff] (PCI address 
pci 0000:00:07.0: BAR 1: assigned [mem 0x12082000-0x120823ff]
pci 0000:00:07.0: BAR 1: set to [mem 0x12082000-0x120823ff] (PCI address 
pci 0000:00:0c.0: BAR 1: assigned [mem 0x12082400-0x120827ff]
pci 0000:00:0c.0: BAR 1: set to [mem 0x12082400-0x120827ff] (PCI address 
pci 0000:00:0a.2: BAR 0: assigned [mem 0x12082800-0x120828ff]
pci 0000:00:0a.2: BAR 0: set to [mem 0x12082800-0x120828ff] (PCI address 
pci 0000:00:07.0: BAR 0: assigned [io  0x1000-0x107f]
pci 0000:00:07.0: BAR 0: set to [io  0x1000-0x107f] (PCI address 
pci 0000:00:0c.0: BAR 0: assigned [io  0x1080-0x10ff]
pci 0000:00:0c.0: BAR 0: set to [io  0x1080-0x10ff] (PCI address 
pci 0000:00:09.2: BAR 4: assigned [io  0x1400-0x141f]
pci 0000:00:09.2: BAR 4: set to [io  0x1400-0x141f] (PCI address 
pci 0000:00:09.1: BAR 4: assigned [io  0x1420-0x142f]
pci 0000:00:09.1: BAR 4: set to [io  0x1420-0x142f] (PCI address 
Switching to clocksource MIPS
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 4096 (order: 3, 32768 bytes)
TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
TCP reno registered
UDP hash table entries: 256 (order: 0, 4096 bytes)
UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
NET: Registered protocol family 1
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
pci 0000:00:09.0: Activating ISA DMA hang workarounds
Installing knfsd (copyright (C) 1996
msgmni has been set to 245
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
fb0: Cobalt server LCD frame buffer device
Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
_serial8250.0: ttyS0 at MMIO 0x1c800000 (irq = 21) is a ST16650V2_console 
[ttyS0] enabled, bootconsole disabled
console [ttyS0] enabled, bootconsole disabled
loop: module loaded
pata_via 0000:00:09.1: BAR 0: can't reserve [io  0xf00001f0-0xf00001f7]
pata_via 0000:00:09.1: failed to request/iomap BARs for port 0 (errno=-16)
pata_via 0000:00:09.1: BAR 2: can't reserve [io  0xf0000170-0xf0000177]
pata_via 0000:00:09.1: failed to request/iomap BARs for port 1 (errno=-16)
pata_via 0000:00:09.1: no available native port
physmap platform flash device: 00080000 at 1fc00000
Found: AMD AM29F040
physmap-flash.0: Found 1 x8 devices at 0x0 in 8-bit bank
number of JEDEC chips: 1
cmdlinepart partition parsing not available
RedBoot partition parsing not available
Using physmap partition information
Creating 1 MTD partitions on "physmap-flash.0":
0x000000000000-0x000000080000 : "firmware"
Linux Tulip driver version 1.1.15 (Feb 27, 2007)
PCI: Enabling device 0000:00:07.0 (0041 -> 0043)
tulip0: Old format EEPROM on 'Cobalt Microserver' board.  Using substitute 
media control info.
tulip0:  EEPROM default media type Autosense.
tulip0:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3) block.
tulip0:  MII transceiver #1 config 1000 status 7809 advertising 01e1.
eth0: Digital DS21142/43 Tulip rev 65 at Port 0x1000, --:--:--:--:--:--, IRQ 19.
PCI: Enabling device 0000:00:0c.0 (0005 -> 0007)
tulip1: Old format EEPROM on 'Cobalt Microserver' board.  Using substitute 
media control info.
tulip1:  EEPROM default media type Autosense.
tulip1:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3) block.
tulip1:  MII transceiver #1 config 1000 status 7809 advertising 01e1.
eth1: Digital DS21142/43 Tulip rev 65 at Port 0x1080, --:--:--:--:--:--, IRQ 20.
input: Cobalt buttons as /devices/platform/Cobalt buttons/input/input0
rtc_cmos rtc_cmos: rtc core: registered rtc_cmos as rtc0
rtc0: alarms up to one day, 242 bytes nvram
Registered led device: qube::front
TCP cubic registered
Initializing XFRM netlink socket
NET: Registered protocol family 17
NET: Registered protocol family 15
rtc_cmos rtc_cmos: setting system clock to 2010-02-21 23:19:20 UTC (1266794360)
VFS: Cannot open root device "sda2" or unknown-block(0,0)
Please append a correct "root=" boot option; here are the available partitions:
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

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