stmmac: get the descriptor structure from platform

Output for chip that uses the Enhanced descriptors:
[snip]
STMMAC driver:
	platform registration... done!
	DWMAC1000 - user ID: 0x10, Synopsys ID: 0x33
	Enhanced descriptor structure
	no valid MAC address;please, use ifconfig or nwhwconfig!
	eth0 - (dev. name: stmmaceth - id: 0, IRQ #134
	IO base addr: 0xfd110000)
STMMAC MII Bus: probed
[snip]

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/net/stmmac/stmmac.h b/drivers/net/stmmac/stmmac.h
index 55b9acae82a1..0d776bc23143 100644
--- a/drivers/net/stmmac/stmmac.h
+++ b/drivers/net/stmmac/stmmac.h
@@ -93,6 +93,7 @@ struct stmmac_priv {
 #ifdef STMMAC_VLAN_TAG_USED
         struct vlan_group *vlgrp;
 #endif
+        int enh_desc;
 };
 
 #ifdef CONFIG_STM_DRIVERS