linux-toradex.git/include/linux/pci_ids.h, branch tegra-9.12.13

8250: fix boot hang with serial console when using with Serial Over Lan port

2009-02-21T01:57:50+00:00

Intel 8257x Ethernet boards have a feature called Serial Over Lan.

This feature works by emulating a serial port, and it is detected by
kernel as a normal 8250 port.  However, this emulation is not perfect, as
also noticed on changeset 7500b1f602aad75901774a67a687ee985d85893f.

Before this patch, the kernel were trying to check if the serial TX is
capable of work using IRQ's.

This were done with a code similar this:

        serial_outp(up, UART_IER, UART_IER_THRI);
        lsr = serial_in(up, UART_LSR);
        iir = serial_in(up, UART_IIR);
        serial_outp(up, UART_IER, 0);

        if (lsr & UART_LSR_TEMT && iir & UART_IIR_NO_INT)
		up->bugs |= UART_BUG_TXEN;

This works fine for other 8250 ports, but, on 8250-emulated SoL port, the
chip is a little lazy to down UART_IIR_NO_INT at UART_IIR register.

Due to that, UART_BUG_TXEN is sometimes enabled.  However, as TX IRQ keeps
working, and the TX polling is now enabled, the driver miss-interprets the
IRQ received later, hanging up the machine until a key is pressed at the
serial console.

This is the 6 version of this patch.  Previous versions were trying to
introduce a large enough delay between serial_outp and serial_in(up,
UART_IIR), but not taking forever.  However, the needed delay couldn't be
safely determined.

At the experimental tests, a delay of 1us solves most of the cases, but
still hangs sometimes.  Increasing the delay to 5us was better, but still
doesn't solve.  A very high delay of 50 ms seemed to work every time.

However, poking around with delays and pray for it to be enough doesn't
seem to be a good approach, even for a quirk.

So, instead of playing with random large arbitrary delays, let's just
disable UART_BUG_TXEN for all SoL ports.

[akpm@linux-foundation.org: fix warnings]
Signed-off-by: Mauro Carvalho Chehab 
Cc: Alan Cox 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

jsm: additional device support

2009-02-18T23:37:55+00:00

I have a Digi Neo 8 PCI card (114f:00b1) Serial controller: Digi
International Digi Neo 8 (rev 05)

that works with the jsm driver after using the following patch.

Signed-off-by: Adam Lackorzynski 
Cc: Scott H Kilau 
Cc: Wendy Xiong 
Acked-by: Alan Cox 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Add support for VT6415 PCIE PATA IDE Host Controller

2009-02-18T00:56:31+00:00

Signed-off-by: Zlatko Calusic 
Signed-off-by: Linus Torvalds

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6

2009-02-03T03:28:58+00:00

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
  PCI hotplug: Change link order of pciehp & acpiphp
  PCI hotplug: fakephp: Allocate PCI resources before adding the device
  PCI MSI: Fix undefined shift by 32
  PCI PM: Do not wait for buses in B2 or B3 during resume
  PCI PM: Power up devices before restoring their state
  PCI PM: Fix hibernation breakage on EeePC 701
  PCI: irq and pci_ids patch for Intel Tigerpoint DeviceIDs
  PCI PM: Fix suspend error paths and testing facility breakage

PCI: irq and pci_ids patch for Intel Tigerpoint DeviceIDs

2009-01-27T17:46:08+00:00

This patch adds the Intel Tigerpoint LPC Controller DeviceIDs.

Signed-off-by: Seth Heasley 
Signed-off-by: Jesse Barnes

[libata] pata_via: support VX855, future chips whose IDE controller use 0x0571

2009-01-26T11:51:26+00:00

It supports VX855 and future chips whose IDE controller uses PCI ID 0x0571.

Signed-off-by: Joseph Chan 
Acked-by: Tejun Heo 
Signed-off-by: Jeff Garzik

it821x: Add ultra_mask quirk for Vortex86SX

2009-01-14T18:19:02+00:00

On Vortex86SX with IDE controller revision 0x11 ultra DMA must be
disabled. This patch was tested by DMP and seems to work.

It is a cleaned up version of their older Kernel patch: 
 http://www.dmp.com.tw/tech/vortex86sx/patch-2.6.24-DMP.gz

Tested-by: Shawn Lin 
Signed-off-by: Brandon Philips 
Cc: Alan Cox 
Signed-off-by: Bartlomiej Zolnierkiewicz

Resurrect IT8172 IDE controller driver

2009-01-06T16:21:01+00:00

Support for the IT8172 IDE controller was removed from the kernel
sometime after 2.6.18.  Support for the only boards that used the IT8172
was removed from the kernel after 2.6.18, as they had never compiled
since 2.6.0.  However, there are a couple of platforms that use this
chip: the PMC-Sierra Xiao Hu thin-client computer, which is no longer
in production, and the Linksys NSS4000 Network Attached Storage box,
which is based on the Xiao Hu board.  I am attempting to add support
for the Xiao Hu to the kernel, and this IT8172 IDE controller is the
first bit of code in this effort.

This patch resurrects the IT8172 IDE controller code.  I began with
the 2.6.18 version of the it8172.c file, and have moved it forward so
that it works with the latest version of the kernel.  I have run this
driver on a PMC-Sierra Xiao Hu board with the 2.6.28 kernel, and
I have had no problems with it in my configuration.  The attached patch
applies cleanly against 2.6.28.

Signed-off-by: Shane McDonald 
Acked-by: Sergei Shtylyov 
Cc: alan@lxorguk.ukuu.org.uk
[bart: s/HWIF(drive)/drive->hwif/]
Signed-off-by: Bartlomiej Zolnierkiewicz

serial_8250: support for Sealevel Systems Model 7803 COMM+8

2009-01-02T18:19:44+00:00

Add support for Sealevel Systems Model 7803 COMM+8

Signed-off-by: Flavio Leitner 
Signed-off-by: Alan Cox 
Signed-off-by: Linus Torvalds

serial: set correct baud_base for Oxford Semiconductor Ltd EXSYS EX-41092 Dual 16950 Serial adapter

2009-01-02T18:19:40+00:00

The PCI-card identified as "Oxford Semiconductor Ltd EXSYS EX-41092 Dual
16950 Serial adapter" is only usable with other devices (i.e. not the same
card) after doing a "setserial /dev/ttyS baud_base 115200".  This
baud_base should be default for this card.

Signed-off-by: Niels de Vos 
Signed-off-by: Alan Cox 
Signed-off-by: Linus Torvalds