[PATCH] PPC440EP Interrupt Triggering and Level Settings

[Wolfgang Ocker]

From: Wolfgang Ocker <weo at reccoware.de>

Corrected IRQ triggering and level settings according to latest revision
of the 440EP User Manual (rev 1.24 nov 16, 2007).

The incorrect settings might cause a failure of the network if both
onchip ethernet ports are under heavy load.

Signed-off-by: Wolfgang Ocker <weo at reccoware.de>
---

--- linux-2.6.24/arch/ppc/platforms/4xx/ibm440ep.c.irq-trig     2008-01-24 23:58:37.000000000 +0100
+++ linux-2.6.24/arch/ppc/platforms/4xx/ibm440ep.c      2008-02-10 19:43:32.000000000 +0100
@@ -172,11 +172,11 @@
 /* Polarity and triggering settings for internal interrupt sources */
 struct ppc4xx_uic_settings ppc4xx_core_uic_cfg[] __initdata = {
        { .polarity     = 0xffbffe03,
-         .triggering   = 0xfffffe00,
+         .triggering   = 0x00000000,
          .ext_irq_mask = 0x000001fc,   /* IRQ0 - IRQ6 */
        },
-       { .polarity     = 0xffffc6ef,
-         .triggering   = 0xffffc7ff,
+       { .polarity     = 0xffffc6af,
+         .triggering   = 0x06000140,
          .ext_irq_mask = 0x00003800,   /* IRQ7 - IRQ9 */
        },
 };