The lspci output gives me the same IRQ for both the PCI bus and the
peripheral attached to it. I don't know why the pci_get_config_byte call
was returning me 0x00, I'll check into it.
Regarding the DT, it should be ok, at least the IDSEL is 0x15, but if
you have any specific documentation I can take a look at, I will recheck it.
Thanks,
Matteo
Matthias Fuchs ha scritto:
Hi Matteo,
I have a chip connected on the PCI bus on an MPC512x, but if I get the
IRQ property from the PCI chip, it is not set up by Linux.
It's not clear to me what you mean by this.
Do you see an interrupt assigned to your pci device's PCI_INTERRUPT_LINE
register? Check lspci output.
The IRQ line goes directly from the chip to the MPC512x uc, so I don't
know if I should create a separate node just to get the interrupt, or I
No. The pci node in the DT should be ok.
Because you posted to an embedded list, I need to ask this: are you using a
custom hardware? Does the DT fit to your board's interrupt / IDSEL routing?
Matthias
should expect the pci functions to assign it an interrupt based on the
PCI bus.
The description for the PCI bus is like this:
pci: [EMAIL PROTECTED] {
interrupt-map-mask = <0xf800 0x0 0x0 0x7>;
interrupt-map = <
// IDSEL 0x15 - Slot PCI
0xa800 0x0 0x0 0x1 &ipic 0x0 0x8
0xa800 0x0 0x0 0x2 &ipic 0x1 0x8
0xa800 0x0 0x0 0x3 &ipic 0x2 0x8
0xa800 0x0 0x0 0x4 &ipic 0x3 0x8
>;
interrupt-parent = < &ipic >;
interrupts = <17 0x8>;
bus-range = <0 0>;
ranges = <0x42000000 0x0 0xa0000000 0xa0000000 0x0
0x10000000
0x02000000 0x0 0xb0000000 0xb0000000 0x0
0x10000000
0x01000000 0x0 0x00000000 0x84000000 0x0
0x01000000>;
clock-frequency = <66000000>;
#interrupt-cells = <1>;
#size-cells = <2>;
#address-cells = <3>;
reg = <0x80008500 0x100>;
compatible = "fsl,mpc5121-pci";
device_type = "pci";
};
_______________________________________________
Linuxppc-embedded mailing list
Linuxppc-embedded@ozlabs.org
https://ozlabs.org/mailman/listinfo/linuxppc-embedded
--
Ing. Matteo Fortini, PhD
Digitek spa
Embedded Linux specialist
V. Romagnoli, 24
41033 Concordia (MO)
Italy
Tel : (+39) 0535-56942
Fax : (+39) 0535-54550
Skype: callto://matteofortini
eMail: [EMAIL PROTECTED]
_______________________________________________
Linuxppc-embedded mailing list
Linuxppc-embedded@ozlabs.org
https://ozlabs.org/mailman/listinfo/linuxppc-embedded
