The backplane on the b44 chip seems to have a silicon bug
in the IRQ routing. The ethernet core IRQ routing does not work
with the routing bit returned from the backplaneflag register.
This patch adds a workaround for the b44 chip to use a hardcoded
constant. This constant was also used in the old b44 driver.
Signed-off-by: Michael Buesch <[EMAIL PROTECTED]>
Cc: Maximilian Engelhardt <[EMAIL PROTECTED]>
Cc: Gary Zambrano <[EMAIL PROTECTED]>
Index: bu3sch-wireless-dev/drivers/ssb/driver_pcicore.c
===================================================================
--- bu3sch-wireless-dev.orig/drivers/ssb/driver_pcicore.c 2007-06-17
13:35:45.000000000 +0200
+++ bu3sch-wireless-dev/drivers/ssb/driver_pcicore.c 2007-06-17
14:19:05.000000000 +0200
@@ -496,9 +496,15 @@ int ssb_pcicore_dev_irqvecs_enable(struc
u32 intvec;
intvec = ssb_read32(pdev, SSB_INTVEC);
- tmp = ssb_read32(dev, SSB_TPSFLAG);
- tmp &= SSB_TPSFLAG_BPFLAG;
- intvec |= tmp;
+ if ((bus->chip_id & 0xFF00) == 0x4400) {
+ /* Workaround: On the BCM44XX the BPFLAG routing
+ * bit is wrong. Use a hardcoded constant. */
+ intvec |= 0x00000002;
+ } else {
+ tmp = ssb_read32(dev, SSB_TPSFLAG);
+ tmp &= SSB_TPSFLAG_BPFLAG;
+ intvec |= tmp;
+ }
ssb_write32(pdev, SSB_INTVEC, intvec);
}
Please apply this to wireless-dev.
This is also most likely the bug Uwe Bugla was
bullshitting about^W^Wreporting.
--
Greetings Michael.
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