Freescale mpc8315 IRQ0 setup

[Juergen Schindele]

Dear mailing list,
i found out on our platform with freescale mpc8315 SOC that in
linux kernel code the setup of IRQ0 which we use is not correct.
One should be able to use falling EDGE interrupt capabilities like on
IRQ1-IRQ7. These setups are fixed in "arch/powerpc/sysdev/ipic.c"
The internal interrupt number of IRQ0 is not like IRQ1-IRQ7 in one block
but on number 48. To verify details please consult MPC8315ERM.pdf
developpers manual.

To correct these "EDGE" capabilities of IRQ0 i suggest the following 
patch:
please consider integrating it to your patches.

--- arch/powerpc/sysdev/ipic.c  (Revision correct)
+++ arch/powerpc/sysdev/ipic.c  (Arbeitskopie)
@@ -316,6 +316,7 @@
                .prio_mask = 7,
        },
        [48] = {
+               .ack    = IPIC_SEPNR,
                .mask   = IPIC_SEMSR,
                .prio   = IPIC_SMPRR_A,
                .force  = IPIC_SEFCR,

Thank you for your attention
-- 
i. A.
Jürgen Schindele
Softwareentwicklung

PSI Nentec GmbH
Greschbachstraße 12
76229 Karlsruhe
Deutschland
Telefon: +49 721 94249-51
Telefax: +49 721 94249-10
schindele at nentec.de
www.nentec.de

Geschäftsführung: Klaus Becker, Wolfgang Fischer
Sitz der Gesellschaft: Karlsruhe
Handelsregister: Amtsgericht Mannheim HRB 107658

Diese E-Mail enthält vertrauliche oder rechtlich geschützte 
Informationen. Wenn Sie nicht der vorgesehene Empfänger sind, 
informieren Sie bitte sofort den Absender und löschen Sie diese E-Mail. 
Das unbefugte Kopieren dieser E-Mail oder die unbefugte Weitergabe 
der enthaltenen Informationen ist nicht gestattet.

The information contained in this message is confidential or protected 
by law. If you are not the intended recipient, please contact the sender 
and delete this message. Any unauthorised copying of this message or 
unauthorised distribution of the information contained herein is 
prohibited. 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ozlabs.org/pipermail/linuxppc-dev/attachments/20170410/a9351a41/attachment-0001.html>