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>
diff --git a/drivers/bcma/sprom.c b/drivers/bcma/sprom.c
index 8b5b785..166ed13 100644
--- a/drivers/bcma/sprom.c
+++ b/drivers/bcma/sprom.c
@@ -152,6 +152,9 @@
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 @@
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;