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authorRafał Miłecki <zajec5@gmail.com>2011-08-12 01:46:44 +0400
committerJohn W. Linville <linville@tuxdriver.com>2011-08-22 22:45:59 +0400
commit984e5befbafe2799be28c2209226a82fb3a3be7a (patch)
treea43f9648318a32724e5f5ed3204954f77bbdf024 /drivers/bcma/sprom.c
parent17030f48e31adde5b043741c91ba143f5f7db0fd (diff)
downloadlinux-984e5befbafe2799be28c2209226a82fb3a3be7a.tar.xz
bcma: implement BCM4331 workaround for external PA lines
We need to disable ext. PA lines for reading SPROM. It's disabled by default, but this patch allows using bcma after loading wl, which leaves workaround enabled. Cc: Arend van Spriel <arend@broadcom.com> Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/bcma/sprom.c')
-rw-r--r--drivers/bcma/sprom.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/bcma/sprom.c b/drivers/bcma/sprom.c
index 8b5b7856abe3..166ed13ec066 100644
--- a/drivers/bcma/sprom.c
+++ b/drivers/bcma/sprom.c
@@ -152,6 +152,9 @@ int bcma_sprom_get(struct bcma_bus *bus)
if (!sprom)
return -ENOMEM;
+ if (bus->chipinfo.id == 0x4331)
+ bcma_chipco_bcm4331_ext_pa_lines_ctl(&bus->drv_cc, false);
+
/* Most cards have SPROM moved by additional offset 0x30 (48 dwords).
* According to brcm80211 this applies to cards with PCIe rev >= 6
* TODO: understand this condition and use it */
@@ -159,6 +162,9 @@ int bcma_sprom_get(struct bcma_bus *bus)
BCMA_CC_SPROM_PCIE6;
bcma_sprom_read(bus, offset, sprom);
+ if (bus->chipinfo.id == 0x4331)
+ bcma_chipco_bcm4331_ext_pa_lines_ctl(&bus->drv_cc, true);
+
err = bcma_sprom_valid(sprom);
if (err)
goto out;