bcma: add extra sprom check
This check is needed on the BCM43224 device as it says in the
capabilities it has an sprom but is extra check says it has not.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/bcma/sprom.c b/drivers/bcma/sprom.c
index e35134f..ca77525 100644
--- a/drivers/bcma/sprom.c
+++ b/drivers/bcma/sprom.c
@@ -250,6 +250,7 @@
{
u16 offset;
u16 *sprom;
+ u32 sromctrl;
int err = 0;
if (!bus->drv_cc.core)
@@ -258,6 +259,12 @@
if (!(bus->drv_cc.capabilities & BCMA_CC_CAP_SPROM))
return -ENOENT;
+ if (bus->drv_cc.core->id.rev >= 32) {
+ sromctrl = bcma_read32(bus->drv_cc.core, BCMA_CC_SROM_CONTROL);
+ if (!(sromctrl & BCMA_CC_SROM_CONTROL_PRESENT))
+ return -ENOENT;
+ }
+
sprom = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16),
GFP_KERNEL);
if (!sprom)