Merge branch 'zynq' of git://www.denx.de/git/u-boot-microblaze

5 files changed, 315 insertions, 34 deletions

diff --git a/drivers/mmc/zynq_sdhci.c b/drivers/mmc/zynq_sdhci.c
index c69f5d4..e169b77 100644
--- a/drivers/mmc/zynq_sdhci.c
+++ b/drivers/mmc/zynq_sdhci.c
@@ -29,7 +29,7 @@ int zynq_sdhci_init(phys_addr_t regbase)
 		       SDHCI_QUIRK_BROKEN_R1B;
 	host->version = sdhci_readw(host, SDHCI_HOST_VERSION);
 
-	add_sdhci(host, 52000000, 52000000 >> 9);
+	add_sdhci(host, CONFIG_ZYNQ_SDHCI_MAX_FREQ, 52000000 >> 9);
 	return 0;
 }
 
diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
index d096db8..9e4d492 100644
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -24,4 +24,5 @@ obj-$(CONFIG_PHY_NATSEMI) += natsemi.o
 obj-$(CONFIG_PHY_REALTEK) += realtek.o
 obj-$(CONFIG_PHY_SMSC) += smsc.o
 obj-$(CONFIG_PHY_TERANETICS) += teranetics.o
+obj-$(CONFIG_PHY_TI) += ti.o
 obj-$(CONFIG_PHY_VITESSE) += vitesse.o
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index d7364ff..5633ec2 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -484,6 +484,9 @@ int phy_init(void)
 #ifdef CONFIG_PHY_TERANETICS
 	phy_teranetics_init();
 #endif
+#ifdef CONFIG_PHY_TI
+	phy_ti_init();
+#endif
 #ifdef CONFIG_PHY_VITESSE
 	phy_vitesse_init();
 #endif
diff --git a/drivers/net/phy/ti.c b/drivers/net/phy/ti.c
new file mode 100644
index 0000000..541a57f
--- /dev/null
+++ b/drivers/net/phy/ti.c
@@ -0,0 +1,200 @@
+/*
+ * TI PHY drivers
+ *
+ * SPDX-License-Identifier:	GPL-2.0
+ *
+ */
+#include <common.h>
+#include <phy.h>
+
+/* TI DP83867 */
+#define DP83867_DEVADDR		0x1f
+
+#define MII_DP83867_PHYCTRL	0x10
+#define MII_DP83867_MICR	0x12
+#define DP83867_CTRL		0x1f
+
+/* Extended Registers */
+#define DP83867_RGMIICTL	0x0032
+#define DP83867_RGMIIDCTL	0x0086
+
+#define DP83867_SW_RESET	BIT(15)
+#define DP83867_SW_RESTART	BIT(14)
+
+/* MICR Interrupt bits */
+#define MII_DP83867_MICR_AN_ERR_INT_EN		BIT(15)
+#define MII_DP83867_MICR_SPEED_CHNG_INT_EN	BIT(14)
+#define MII_DP83867_MICR_DUP_MODE_CHNG_INT_EN	BIT(13)
+#define MII_DP83867_MICR_PAGE_RXD_INT_EN	BIT(12)
+#define MII_DP83867_MICR_AUTONEG_COMP_INT_EN	BIT(11)
+#define MII_DP83867_MICR_LINK_STS_CHNG_INT_EN	BIT(10)
+#define MII_DP83867_MICR_FALSE_CARRIER_INT_EN	BIT(8)
+#define MII_DP83867_MICR_SLEEP_MODE_CHNG_INT_EN	BIT(4)
+#define MII_DP83867_MICR_WOL_INT_EN		BIT(3)
+#define MII_DP83867_MICR_XGMII_ERR_INT_EN	BIT(2)
+#define MII_DP83867_MICR_POL_CHNG_INT_EN	BIT(1)
+#define MII_DP83867_MICR_JABBER_INT_EN		BIT(0)
+
+/* RGMIICTL bits */
+#define DP83867_RGMII_TX_CLK_DELAY_EN		BIT(1)
+#define DP83867_RGMII_RX_CLK_DELAY_EN		BIT(0)
+
+/* PHY CTRL bits */
+#define DP83867_PHYCR_FIFO_DEPTH_SHIFT		14
+
+/* RGMIIDCTL bits */
+#define DP83867_RGMII_TX_CLK_DELAY_SHIFT	4
+
+#define MII_MMD_CTRL	0x0d /* MMD Access Control Register */
+#define MII_MMD_DATA	0x0e /* MMD Access Data Register */
+
+/* MMD Access Control register fields */
+#define MII_MMD_CTRL_DEVAD_MASK	0x1f /* Mask MMD DEVAD*/
+#define MII_MMD_CTRL_ADDR	0x0000 /* Address */
+#define MII_MMD_CTRL_NOINCR	0x4000 /* no post increment */
+#define MII_MMD_CTRL_INCR_RDWT	0x8000 /* post increment on reads & writes */
+#define MII_MMD_CTRL_INCR_ON_WT	0xC000 /* post increment on writes only */
+
+/**
+ * phy_read_mmd_indirect - reads data from the MMD registers
+ * @phydev: The PHY device bus
+ * @prtad: MMD Address
+ * @devad: MMD DEVAD
+ * @addr: PHY address on the MII bus
+ *
+ * Description: it reads data from the MMD registers (clause 22 to access to
+ * clause 45) of the specified phy address.
+ * To read these registers we have:
+ * 1) Write reg 13 // DEVAD
+ * 2) Write reg 14 // MMD Address
+ * 3) Write reg 13 // MMD Data Command for MMD DEVAD
+ * 3) Read  reg 14 // Read MMD data
+ */
+int phy_read_mmd_indirect(struct phy_device *phydev, int prtad,
+			  int devad, int addr)
+{
+	int value = -1;
+
+	/* Write the desired MMD Devad */
+	phy_write(phydev, addr, MII_MMD_CTRL, devad);
+
+	/* Write the desired MMD register address */
+	phy_write(phydev, addr, MII_MMD_DATA, prtad);
+
+	/* Select the Function : DATA with no post increment */
+	phy_write(phydev, addr, MII_MMD_CTRL, (devad | MII_MMD_CTRL_NOINCR));
+
+	/* Read the content of the MMD's selected register */
+	value = phy_read(phydev, addr, MII_MMD_DATA);
+	return value;
+}
+
+/**
+ * phy_write_mmd_indirect - writes data to the MMD registers
+ * @phydev: The PHY device
+ * @prtad: MMD Address
+ * @devad: MMD DEVAD
+ * @addr: PHY address on the MII bus
+ * @data: data to write in the MMD register
+ *
+ * Description: Write data from the MMD registers of the specified
+ * phy address.
+ * To write these registers we have:
+ * 1) Write reg 13 // DEVAD
+ * 2) Write reg 14 // MMD Address
+ * 3) Write reg 13 // MMD Data Command for MMD DEVAD
+ * 3) Write reg 14 // Write MMD data
+ */
+void phy_write_mmd_indirect(struct phy_device *phydev, int prtad,
+			    int devad, int addr, u32 data)
+{
+	/* Write the desired MMD Devad */
+	phy_write(phydev, addr, MII_MMD_CTRL, devad);
+
+	/* Write the desired MMD register address */
+	phy_write(phydev, addr, MII_MMD_DATA, prtad);
+
+	/* Select the Function : DATA with no post increment */
+	phy_write(phydev, addr, MII_MMD_CTRL, (devad | MII_MMD_CTRL_NOINCR));
+
+	/* Write the data into MMD's selected register */
+	phy_write(phydev, addr, MII_MMD_DATA, data);
+}
+
+/**
+ * phy_interface_is_rgmii - Convenience function for testing if a PHY interface
+ * is RGMII (all variants)
+ * @phydev: the phy_device struct
+ */
+static inline bool phy_interface_is_rgmii(struct phy_device *phydev)
+{
+	return phydev->interface >= PHY_INTERFACE_MODE_RGMII &&
+		phydev->interface <= PHY_INTERFACE_MODE_RGMII_TXID;
+}
+
+/* User setting - can be taken from DTS */
+#define RX_ID_DELAY	8
+#define TX_ID_DELAY	0xa
+#define FIFO_DEPTH	1
+
+static int dp83867_config(struct phy_device *phydev)
+{
+	unsigned int val, delay;
+	int ret;
+
+	/* Restart the PHY.  */
+	val = phy_read(phydev, MDIO_DEVAD_NONE, DP83867_CTRL);
+	phy_write(phydev, MDIO_DEVAD_NONE, DP83867_CTRL,
+		  val | DP83867_SW_RESTART);
+
+	if (phy_interface_is_rgmii(phydev)) {
+		ret = phy_write(phydev, MDIO_DEVAD_NONE, MII_DP83867_PHYCTRL,
+			(FIFO_DEPTH << DP83867_PHYCR_FIFO_DEPTH_SHIFT));
+		if (ret)
+			return ret;
+	}
+
+	if ((phydev->interface >= PHY_INTERFACE_MODE_RGMII_ID) &&
+	    (phydev->interface <= PHY_INTERFACE_MODE_RGMII_RXID)) {
+		val = phy_read_mmd_indirect(phydev, DP83867_RGMIICTL,
+					    DP83867_DEVADDR, phydev->addr);
+
+		if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)
+			val |= (DP83867_RGMII_TX_CLK_DELAY_EN |
+				DP83867_RGMII_RX_CLK_DELAY_EN);
+
+		if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)
+			val |= DP83867_RGMII_TX_CLK_DELAY_EN;
+
+		if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID)
+			val |= DP83867_RGMII_RX_CLK_DELAY_EN;
+
+		phy_write_mmd_indirect(phydev, DP83867_RGMIICTL,
+				       DP83867_DEVADDR, phydev->addr, val);
+
+		delay = (RX_ID_DELAY |
+			 (TX_ID_DELAY << DP83867_RGMII_TX_CLK_DELAY_SHIFT));
+
+		phy_write_mmd_indirect(phydev, DP83867_RGMIIDCTL,
+				       DP83867_DEVADDR, phydev->addr, delay);
+	}
+
+	genphy_config_aneg(phydev);
+	return 0;
+}
+
+static struct phy_driver DP83867_driver = {
+	.name = "TI DP83867",
+	.uid = 0x2000a231,
+	.mask = 0xfffffff0,
+	.features = PHY_GBIT_FEATURES,
+	.config = &dp83867_config,
+	.startup = &genphy_startup,
+	.shutdown = &genphy_shutdown,
+};
+
+int phy_ti_init(void)
+{
+	phy_register(&DP83867_driver);
+	return 0;
+}
diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c
index 5637a0d..858093f 100644
--- a/drivers/net/zynq_gem.c
+++ b/drivers/net/zynq_gem.c
@@ -23,6 +23,7 @@
 #include <asm/system.h>
 #include <asm/arch/hardware.h>
 #include <asm/arch/sys_proto.h>
+#include <asm-generic/errno.h>
 
 #if !defined(CONFIG_PHYLIB)
 # error XILINX_GEM_ETHERNET requires PHYLIB
@@ -46,6 +47,7 @@
 /* Wrap bit, last descriptor */
 #define ZYNQ_GEM_TXBUF_WRAP_MASK	0x40000000
 #define ZYNQ_GEM_TXBUF_LAST_MASK	0x00008000 /* Last buffer */
+#define ZYNQ_GEM_TXBUF_USED_MASK	0x80000000 /* Used by Hw */
 
 #define ZYNQ_GEM_NWCTRL_TXEN_MASK	0x00000008 /* Enable transmit */
 #define ZYNQ_GEM_NWCTRL_RXEN_MASK	0x00000004 /* Enable receive */
@@ -56,8 +58,7 @@
 #define ZYNQ_GEM_NWCFG_SPEED1000	0x000000400 /* 1Gbps operation */
 #define ZYNQ_GEM_NWCFG_FDEN		0x000000002 /* Full Duplex mode */
 #define ZYNQ_GEM_NWCFG_FSREM		0x000020000 /* FCS removal */
-#define ZYNQ_GEM_NWCFG_MDCCLKDIV	0x000080000 /* Div pclk by 32, 80MHz */
-#define ZYNQ_GEM_NWCFG_MDCCLKDIV2	0x0000c0000 /* Div pclk by 48, 120MHz */
+#define ZYNQ_GEM_NWCFG_MDCCLKDIV	0x0000c0000 /* Div pclk by 48, max 120MHz */
 
 #ifdef CONFIG_ARM64
 # define ZYNQ_GEM_DBUS_WIDTH	(1 << 21) /* 64 bit bus */
@@ -85,6 +86,8 @@
 					ZYNQ_GEM_DMACR_TXSIZE | \
 					ZYNQ_GEM_DMACR_RXBUF)
 
+#define ZYNQ_GEM_TSR_DONE		0x00000020 /* Tx done mask */
+
 /* Use MII register 1 (MII status register) to detect PHY */
 #define PHY_DETECT_REG  1
 
@@ -108,28 +111,33 @@
 
 /* Device registers */
 struct zynq_gem_regs {
-	u32 nwctrl; /* Network Control reg */
-	u32 nwcfg; /* Network Config reg */
-	u32 nwsr; /* Network Status reg */
+	u32 nwctrl; /* 0x0 - Network Control reg */
+	u32 nwcfg; /* 0x4 - Network Config reg */
+	u32 nwsr; /* 0x8 - Network Status reg */
 	u32 reserved1;
-	u32 dmacr; /* DMA Control reg */
-	u32 txsr; /* TX Status reg */
-	u32 rxqbase; /* RX Q Base address reg */
-	u32 txqbase; /* TX Q Base address reg */
-	u32 rxsr; /* RX Status reg */
+	u32 dmacr; /* 0x10 - DMA Control reg */
+	u32 txsr; /* 0x14 - TX Status reg */
+	u32 rxqbase; /* 0x18 - RX Q Base address reg */
+	u32 txqbase; /* 0x1c - TX Q Base address reg */
+	u32 rxsr; /* 0x20 - RX Status reg */
 	u32 reserved2[2];
-	u32 idr; /* Interrupt Disable reg */
+	u32 idr; /* 0x2c - Interrupt Disable reg */
 	u32 reserved3;
-	u32 phymntnc; /* Phy Maintaince reg */
+	u32 phymntnc; /* 0x34 - Phy Maintaince reg */
 	u32 reserved4[18];
-	u32 hashl; /* Hash Low address reg */
-	u32 hashh; /* Hash High address reg */
+	u32 hashl; /* 0x80 - Hash Low address reg */
+	u32 hashh; /* 0x84 - Hash High address reg */
 #define LADDR_LOW	0
 #define LADDR_HIGH	1
-	u32 laddr[4][LADDR_HIGH + 1]; /* Specific1 addr low/high reg */
-	u32 match[4]; /* Type ID1 Match reg */
+	u32 laddr[4][LADDR_HIGH + 1]; /* 0x8c - Specific1 addr low/high reg */
+	u32 match[4]; /* 0xa8 - Type ID1 Match reg */
 	u32 reserved6[18];
-	u32 stat[44]; /* Octects transmitted Low reg - stat start */
+#define STAT_SIZE	44
+	u32 stat[STAT_SIZE]; /* 0x100 - Octects transmitted Low reg */
+	u32 reserved7[164];
+	u32 transmit_q1_ptr; /* 0x440 - Transmit priority queue 1 */
+	u32 reserved8[15];
+	u32 receive_q1_ptr; /* 0x480 - Receive priority queue 1 */
 };
 
 /* BD descriptors */
@@ -144,7 +152,10 @@ struct emac_bd {
  */
 #define BD_SPACE	0x100000
 /* BD separation space */
-#define BD_SEPRN_SPACE	64
+#define BD_SEPRN_SPACE	(RX_BUF * sizeof(struct emac_bd))
+
+/* Setup the first free TX descriptor */
+#define TX_FREE_DESC	2
 
 /* Initialized, rxbd_current, rx_first_buf must be 0 after init */
 struct zynq_gem_priv {
@@ -156,6 +167,7 @@ struct zynq_gem_priv {
 	int phyaddr;
 	u32 emio;
 	int init;
+	phy_interface_t interface;
 	struct phy_device *phydev;
 	struct mii_dev *bus;
 };
@@ -208,12 +220,23 @@ static u32 phy_setup_op(struct eth_device *dev, u32 phy_addr, u32 regnum,
 
 static u32 phyread(struct eth_device *dev, u32 phy_addr, u32 regnum, u16 *val)
 {
-	return phy_setup_op(dev, phy_addr, regnum,
+	u32 ret;
+
+	ret = phy_setup_op(dev, phy_addr, regnum,
 				ZYNQ_GEM_PHYMNTNC_OP_R_MASK, val);
+
+	if (!ret)
+		debug("%s: phy_addr %d, regnum 0x%x, val 0x%x\n", __func__,
+		      phy_addr, regnum, *val);
+
+	return ret;
 }
 
 static u32 phywrite(struct eth_device *dev, u32 phy_addr, u32 regnum, u16 data)
 {
+	debug("%s: phy_addr %d, regnum 0x%x, data 0x%x\n", __func__, phy_addr,
+	      regnum, data);
+
 	return phy_setup_op(dev, phy_addr, regnum,
 				ZYNQ_GEM_PHYMNTNC_OP_W_MASK, &data);
 }
@@ -289,10 +312,10 @@ static int zynq_gem_init(struct eth_device *dev, bd_t * bis)
 	u32 i;
 	unsigned long clk_rate = 0;
 	struct phy_device *phydev;
-	const u32 stat_size = (sizeof(struct zynq_gem_regs) -
-				offsetof(struct zynq_gem_regs, stat)) / 4;
 	struct zynq_gem_regs *regs = (struct zynq_gem_regs *)dev->iobase;
 	struct zynq_gem_priv *priv = dev->priv;
+	struct emac_bd *dummy_tx_bd = &priv->tx_bd[TX_FREE_DESC];
+	struct emac_bd *dummy_rx_bd = &priv->tx_bd[TX_FREE_DESC + 2];
 	const u32 supported = SUPPORTED_10baseT_Half |
 			SUPPORTED_10baseT_Full |
 			SUPPORTED_100baseT_Half |
@@ -318,7 +341,7 @@ static int zynq_gem_init(struct eth_device *dev, bd_t * bis)
 		writel(0x0, &regs->hashh);
 
 		/* Clear all counters */
-		for (i = 0; i <= stat_size; i++)
+		for (i = 0; i < STAT_SIZE; i++)
 			readl(&regs->stat[i]);
 
 		/* Setup RxBD space */
@@ -341,6 +364,23 @@ static int zynq_gem_init(struct eth_device *dev, bd_t * bis)
 		/* Setup for Network Control register, MDIO, Rx and Tx enable */
 		setbits_le32(&regs->nwctrl, ZYNQ_GEM_NWCTRL_MDEN_MASK);
 
+		/* Disable the second priority queue */
+		dummy_tx_bd->addr = 0;
+		dummy_tx_bd->status = ZYNQ_GEM_TXBUF_WRAP_MASK |
+				ZYNQ_GEM_TXBUF_LAST_MASK|
+				ZYNQ_GEM_TXBUF_USED_MASK;
+
+		dummy_rx_bd->addr = ZYNQ_GEM_RXBUF_WRAP_MASK |
+				ZYNQ_GEM_RXBUF_NEW_MASK;
+		dummy_rx_bd->status = 0;
+		flush_dcache_range((ulong)&dummy_tx_bd, (ulong)&dummy_tx_bd +
+				   sizeof(dummy_tx_bd));
+		flush_dcache_range((ulong)&dummy_rx_bd, (ulong)&dummy_rx_bd +
+				   sizeof(dummy_rx_bd));
+
+		writel((ulong)dummy_tx_bd, &regs->transmit_q1_ptr);
+		writel((ulong)dummy_rx_bd, &regs->receive_q1_ptr);
+
 		priv->init++;
 	}
 
@@ -348,7 +388,7 @@ static int zynq_gem_init(struct eth_device *dev, bd_t * bis)
 
 	/* interface - look at tsec */
 	phydev = phy_connect(priv->bus, priv->phyaddr, dev,
-			     PHY_INTERFACE_MODE_MII);
+			     priv->interface);
 
 	phydev->supported = supported | ADVERTISED_Pause |
 			    ADVERTISED_Asym_Pause;
@@ -369,8 +409,8 @@ static int zynq_gem_init(struct eth_device *dev, bd_t * bis)
 		clk_rate = ZYNQ_GEM_FREQUENCY_1000;
 		break;
 	case SPEED_100:
-		clrsetbits_le32(&regs->nwcfg, ZYNQ_GEM_NWCFG_SPEED1000,
-				ZYNQ_GEM_NWCFG_INIT | ZYNQ_GEM_NWCFG_SPEED100);
+		writel(ZYNQ_GEM_NWCFG_INIT | ZYNQ_GEM_NWCFG_SPEED100,
+		       &regs->nwcfg);
 		clk_rate = ZYNQ_GEM_FREQUENCY_100;
 		break;
 	case SPEED_10:
@@ -389,22 +429,54 @@ static int zynq_gem_init(struct eth_device *dev, bd_t * bis)
 	return 0;
 }
 
+static int wait_for_bit(const char *func, u32 *reg, const u32 mask,
+			bool set, unsigned int timeout)
+{
+	u32 val;
+	unsigned long start = get_timer(0);
+
+	while (1) {
+		val = readl(reg);
+
+		if (!set)
+			val = ~val;
+
+		if ((val & mask) == mask)
+			return 0;
+
+		if (get_timer(start) > timeout)
+			break;
+
+		udelay(1);
+	}
+
+	debug("%s: Timeout (reg=%p mask=%08x wait_set=%i)\n",
+	      func, reg, mask, set);
+
+	return -ETIMEDOUT;
+}
+
 static int zynq_gem_send(struct eth_device *dev, void *ptr, int len)
 {
 	u32 addr, size;
 	struct zynq_gem_priv *priv = dev->priv;
 	struct zynq_gem_regs *regs = (struct zynq_gem_regs *)dev->iobase;
-
-	/* setup BD */
-	writel((ulong)priv->tx_bd, &regs->txqbase);
+	struct emac_bd *current_bd = &priv->tx_bd[1];
 
 	/* Setup Tx BD */
 	memset(priv->tx_bd, 0, sizeof(struct emac_bd));
 
 	priv->tx_bd->addr = (ulong)ptr;
 	priv->tx_bd->status = (len & ZYNQ_GEM_TXBUF_FRMLEN_MASK) |
-			       ZYNQ_GEM_TXBUF_LAST_MASK |
-			       ZYNQ_GEM_TXBUF_WRAP_MASK;
+			       ZYNQ_GEM_TXBUF_LAST_MASK;
+	/* Dummy descriptor to mark it as the last in descriptor chain */
+	current_bd->addr = 0x0;
+	current_bd->status = ZYNQ_GEM_TXBUF_WRAP_MASK |
+			     ZYNQ_GEM_TXBUF_LAST_MASK|
+			     ZYNQ_GEM_TXBUF_USED_MASK;
+
+	/* setup BD */
+	writel((ulong)priv->tx_bd, &regs->txqbase);
 
 	addr = (ulong) ptr;
 	addr &= ~(ARCH_DMA_MINALIGN - 1);
@@ -421,12 +493,11 @@ static int zynq_gem_send(struct eth_device *dev, void *ptr, int len)
 	setbits_le32(&regs->nwctrl, ZYNQ_GEM_NWCTRL_STARTTX_MASK);
 
 	/* Read TX BD status */
-	if (priv->tx_bd->status & ZYNQ_GEM_TXBUF_UNDERRUN)
-		printf("TX underrun\n");
 	if (priv->tx_bd->status & ZYNQ_GEM_TXBUF_EXHAUSTED)
 		printf("TX buffers exhausted in mid frame\n");
 
-	return 0;
+	return wait_for_bit(__func__, &regs->txsr, ZYNQ_GEM_TSR_DONE,
+			    true, 20000);
 }
 
 /* Do not check frame_recd flag in rx_status register 0x20 - just poll BD */
@@ -535,6 +606,12 @@ int zynq_gem_initialize(bd_t *bis, phys_addr_t base_addr,
 	priv->phyaddr = phy_addr;
 	priv->emio = emio;
 
+#ifndef CONFIG_ZYNQ_GEM_INTERFACE
+	priv->interface = PHY_INTERFACE_MODE_MII;
+#else
+	priv->interface = CONFIG_ZYNQ_GEM_INTERFACE;
+#endif
+
 	sprintf(dev->name, "Gem.%lx", base_addr);
 
 	dev->iobase = base_addr;