pcie legacy interrups in c6657

giorgos tsoumplekas

Hello,

We have an OCCB 6657 as EP, connected in a freescale board (RC ), using a powerpc processor.

we use the linux kernel 3.12.13

Either we set the the INTA or INTB in INT_PIN register at EP (c6657 ) the same interrupt is driven by PCIE in RC. Why does this happen?

Should the interrupt that fired be diffrent , when we set different legacy interrupts ?

George

over 9 years ago

0 giorgos tsoumplekas over 9 years ago

Expert 1840 points

One more question,
I noticed that the registers 8 -15 are R only. How can I set legacy interrupt B or C or D?

0 Raja over 9 years ago

TI__Guru* 81335 points

May I know what is OCCB 6657? Thank you.

0 giorgos tsoumplekas over 9 years ago in reply to Raja

Expert 1840 points

Hello,

Sorry , the correct is keystone c6657 processor. We have already gone throught the documents. My question is how to driven the interrupt using the PIN_INT b. Either we set the unterrupt A or B the interrupt is driven by the same Irq number.

Best regards

George

0 Titusrathinaraj Stalin over 9 years ago in reply to giorgos tsoumplekas

TI__Guru** 116100 points

Dear George,
You can refer to section 2.14.2.1 for the Legacy INT generation in EP mode.

I noticed that the registers 8 -15 are R only. How can I set legacy interrupt B or C or D?

Use "LEGACY_B_IRQ_ENABLE_SET", "LEGACY_C_IRQ_ENABLE_SET" and "LEGACY_D_IRQ_ENABLE_SET", registers to enable the legacy interrupt.

Please refer to some of the e2e posts similar to yours.
e2e.ti.com/.../223849
e2e.ti.com/.../1069000

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pcie legacy interrups in c6657