wlcore/wl12xx: move MAC address reading operation to lower driver

Different chip families have the factory MAC address written in
different places.  Add a new hardware operation to read the MAC
address, if available.

Signed-off-by: Luciano Coelho <coelho@ti.com>

1 files changed, 52 insertions, 0 deletions

diff --git a/drivers/net/wireless/ti/wl12xx/main.c b/drivers/net/wireless/ti/wl12xx/main.c
index d235da244a21..cef2884b37c8 100644
--- a/drivers/net/wireless/ti/wl12xx/main.c
+++ b/drivers/net/wireless/ti/wl12xx/main.c
@@ -571,6 +571,51 @@ out:
 	return ret;
 }
 
+static bool wl12xx_mac_in_fuse(struct wl1271 *wl)
+{
+	bool supported = false;
+	u8 major, minor;
+
+	if (wl->chip.id == CHIP_ID_1283_PG20) {
+		major = WL128X_PG_GET_MAJOR(wl->hw_pg_ver);
+		minor = WL128X_PG_GET_MINOR(wl->hw_pg_ver);
+
+		/* in wl128x we have the MAC address if the PG is >= (2, 1) */
+		if (major > 2 || (major == 2 && minor >= 1))
+			supported = true;
+	} else {
+		major = WL127X_PG_GET_MAJOR(wl->hw_pg_ver);
+		minor = WL127X_PG_GET_MINOR(wl->hw_pg_ver);
+
+		/* in wl127x we have the MAC address if the PG is >= (3, 1) */
+		if (major == 3 && minor >= 1)
+			supported = true;
+	}
+
+	wl1271_debug(DEBUG_PROBE,
+		     "PG Ver major = %d minor = %d, MAC %s present",
+		     major, minor, supported ? "is" : "is not");
+
+	return supported;
+}
+
+static void wl12xx_get_fuse_mac(struct wl1271 *wl)
+{
+	u32 mac1, mac2;
+
+	wlcore_set_partition(wl, &wl->ptable[PART_DRPW]);
+
+	mac1 = wl1271_read32(wl, WL12XX_REG_FUSE_BD_ADDR_1);
+	mac2 = wl1271_read32(wl, WL12XX_REG_FUSE_BD_ADDR_2);
+
+	/* these are the two parts of the BD_ADDR */
+	wl->fuse_oui_addr = ((mac2 & 0xffff) << 8) +
+		((mac1 & 0xff000000) >> 24);
+	wl->fuse_nic_addr = mac1 & 0xffffff;
+
+	wlcore_set_partition(wl, &wl->ptable[PART_DOWN]);
+}
+
 static s8 wl12xx_get_pg_ver(struct wl1271 *wl)
 {
 	u32 die_info;
@@ -583,10 +628,17 @@ static s8 wl12xx_get_pg_ver(struct wl1271 *wl)
 	return (s8) (die_info & PG_VER_MASK) >> PG_VER_OFFSET;
 }
 
+static void wl12xx_get_mac(struct wl1271 *wl)
+{
+	if (wl12xx_mac_in_fuse(wl))
+		wl12xx_get_fuse_mac(wl);
+}
+
 static struct wlcore_ops wl12xx_ops = {
 	.identify_chip	= wl12xx_identify_chip,
 	.boot		= wl12xx_boot,
 	.get_pg_ver	= wl12xx_get_pg_ver,
+	.get_mac	= wl12xx_get_mac,
 };
 
 static int __devinit wl12xx_probe(struct platform_device *pdev)