bcma: handle alternative SPROM location
Some cards do not use additional 0x30 offset for SPROM location. We do
not know the real condition for it yet, make it BCM4331 specific for
now.
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 52917e5..8b5b785 100644
--- a/drivers/bcma/sprom.c
+++ b/drivers/bcma/sprom.c
@@ -20,12 +20,12 @@
* R/W ops.
**************************************************/
-static void bcma_sprom_read(struct bcma_bus *bus, u16 *sprom)
+static void bcma_sprom_read(struct bcma_bus *bus, u16 offset, u16 *sprom)
{
int i;
for (i = 0; i < SSB_SPROMSIZE_WORDS_R4; i++)
sprom[i] = bcma_read16(bus->drv_cc.core,
- BCMA_CC_SPROM + (i * 2));
+ offset + (i * 2));
}
/**************************************************
@@ -137,6 +137,7 @@
int bcma_sprom_get(struct bcma_bus *bus)
{
+ u16 offset;
u16 *sprom;
int err = 0;
@@ -151,7 +152,12 @@
if (!sprom)
return -ENOMEM;
- bcma_sprom_read(bus, sprom);
+ /* 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 */
+ offset = (bus->chipinfo.id == 0x4331) ? BCMA_CC_SPROM :
+ BCMA_CC_SPROM_PCIE6;
+ bcma_sprom_read(bus, offset, sprom);
err = bcma_sprom_valid(sprom);
if (err)