On Tue, 2014-08-19 at 20:13 +0530, Gokul C G wrote:
HI,
I am facing problem with PCIE driver in new Linux kernel compiled for
powerpc architecture (Big endian) ,freescales P2040 processor.I was
using old kernel Linux version 3.0.48 previously and now updated to
Linux version 3.8.13-rt9.After updating to the new kernel,
3.8.13-rt9 is also an old kernel. :-)
It is also presumably a Freescale SDK kernel (not even the most recent
one), so it would be best to stick with community.freescale.com (you
didn't follow up to my response there) or, in the case of problems with
third party code you've added on to the SDK kernel, the support channels
of whoever provided you with the software.
PCIe device drivers not working properly and i am getting some error
messages in the boot-up .My intention is to use EXAR PCIe Multiport
serial driver and add 8 serial ports in addition to 4 built in serial
ports provided by P2040 processor. The PCIe driver form EXAR is
compiled and loaded as kernel module . The same was working with
linux kernel 3.0.48 and following prints observed while loading kernel
module.
linux 3.0.48 ,working insmod log
Exar PCIe (XR17V35x) serial driver Revision: 1.2
I don't see this driver in the kernel tree. We can't help you with code
we can't see. Are you sure that the driver is expected to work with
3.8? Have you tried debugging it and/or contacting Exar for support
with their driver?
PCI: Probing PCI hardware
fsl-pci ffe201000.pcie: PCI host bridge to bus :00
pci_bus :00: root bus resource [io 0x-0x]
pci_bus :00: root bus resource [mem 0xc2000-0xc3fff] (bus
address [0xe000-0x])
pci_bus :00: root bus resource [bus 00-ff]
PCIE error(s) detected
PCIE ERR_DR register: 0x8002
PCIE ERR_CAP_STAT register: 0x8001
PCIE ERR_CAP_R0 register: 0x0800
pci :00:00.0: PCI bridge to [bus 01-ff]
PCIE ERR_CAP_R1 register: 0x
PCIE ERR_CAP_R2 register: 0x
PCIE ERR_CAP_R3 register: 0x
PCI: Cannot allocate resource region 0 of device :00:00.0, will
remap
pci :00:00.0: BAR 0: can't assign mem (size 0x100)
pci :00:00.0: BAR 9: can't assign mem pref (size 0x20)
pci :00:00.0: PCI bridge to [bus 01]
pci :00:00.0: bridge window [io 0x-0x]
pci :00:00.0: bridge window [mem 0xc2000-0xc3fff]
I get very similar errors on Freescale's SDK 1.5 kernel (based on
v3.8.13-rt9), and it doesn't stop a PCIe network card from working. So
I wouldn't focus too much on these errors.
-Scott
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