The patch titled
b44-ssb: fix IRQ routing bits on the backplane
has been added to the -mm tree. Its filename is
b44-ssb-fix-irq-routing-bits-on-the-backplane.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: b44-ssb: fix IRQ routing bits on the backplane
From: Michael Buesch <mb@xxxxxxxxx>
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 <mb@xxxxxxxxx>
Tested-by: Maximilian Engelhardt <maxi@xxxxxxxxxxxxx>
Cc: Gary Zambrano <zambrano@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/ssb/driver_pcicore.c | 12 +++++++++---
1 files changed, 9 insertions(+), 3 deletions(-)
diff -puN drivers/ssb/driver_pcicore.c~b44-ssb-fix-irq-routing-bits-on-the-backplane drivers/ssb/driver_pcicore.c
--- a/drivers/ssb/driver_pcicore.c~b44-ssb-fix-irq-routing-bits-on-the-backplane
+++ a/drivers/ssb/driver_pcicore.c
@@ -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);
}
_
Patches currently in -mm which might be from mb@xxxxxxxxx are
b44-ssb-fix-irq-routing-bits-on-the-backplane.patch
o_cloexec-for-scm_rights.patch
o_cloexec-for-scm_rights-fix.patch
o_cloexec-for-scm_rights-fix-2.patch
intel-rng-undo-mess-made-by-an-80-column-extremist.patch
-
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
