Merge branch 'next' of git://git.denx.de/u-boot-net into next

* 'next' of git://git.denx.de/u-boot-net:
  net: Inline the new eth_setenv_enetaddr_by_index function
  net: allow setting env enetaddr from net device setting
  net/designware: Consecutive writes to the same register to be avoided
  CACHE: net: asix: Fix asix driver to work with data cache on
  net: phy: micrel: make ksz9021 phy accessible
  net: abort network initialization if the PHY driver fails
  phylib: phy_startup() should return an error code on failure
  net: tftp: fix type of block arg to store_block

Signed-off-by: Wolfgang Denk <wd@denx.de>

14 files changed, 96 insertions, 26 deletions

diff --git a/doc/README.enetaddr b/doc/README.enetaddr
index 2d8e24f5cb4..1eaeaf9416e 100644
--- a/doc/README.enetaddr
+++ b/doc/README.enetaddr
@@ -32,7 +32,11 @@ Correct flow of setting up the MAC address (summarized):
 
 1. Read from hardware in initialize() function
 2. Read from environment in net/eth.c after initialize()
-3. Give priority to the value in the environment if a conflict
+3. The environment variable will be compared to the driver initialized
+   struct eth_device->enetaddr. If they differ, a warning is printed, and the
+   environment variable will be used unchanged.
+   If the environment variable is not set, it will be initialized from
+   eth_device->enetaddr, and a warning will be printed.
 4. Program the address into hardware if the following conditions are met:
 	a) The relevant driver has a 'write_addr' function
 	b) The user hasn't set an 'ethmacskip' environment variable
diff --git a/drivers/net/designware.c b/drivers/net/designware.c
index 326d550c1f2..bf21a08bdf4 100644
--- a/drivers/net/designware.c
+++ b/drivers/net/designware.c
@@ -171,8 +171,8 @@ static int dw_eth_init(struct eth_device *dev, bd_t *bis)
 	writel(FIXEDBURST | PRIORXTX_41 | BURST_16,
 			&dma_p->busmode);
 
-	writel(FLUSHTXFIFO | readl(&dma_p->opmode), &dma_p->opmode);
-	writel(STOREFORWARD | TXSECONDFRAME, &dma_p->opmode);
+	writel(readl(&dma_p->opmode) | FLUSHTXFIFO | STOREFORWARD |
+		TXSECONDFRAME, &dma_p->opmode);
 
 	conf = FRAMEBURSTENABLE | DISABLERXOWN;
 
diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c
index eee41d7c8b7..57005521899 100644
--- a/drivers/net/fec_mxc.c
+++ b/drivers/net/fec_mxc.c
@@ -510,7 +510,13 @@ static int fec_open(struct eth_device *edev)
 		fec_eth_phy_config(edev);
 	if (fec->phydev) {
 		/* Start up the PHY */
-		phy_startup(fec->phydev);
+		int ret = phy_startup(fec->phydev);
+
+		if (ret) {
+			printf("Could not initialize PHY %s\n",
+			       fec->phydev->dev->name);
+			return ret;
+		}
 		speed = fec->phydev->speed;
 	} else {
 		speed = _100BASET;
diff --git a/drivers/net/fm/eth.c b/drivers/net/fm/eth.c
index f34f4db6b60..2b616adb6e5 100644
--- a/drivers/net/fm/eth.c
+++ b/drivers/net/fm/eth.c
@@ -363,6 +363,9 @@ static int fm_eth_open(struct eth_device *dev, bd_t *bd)
 {
 	struct fm_eth *fm_eth;
 	struct fsl_enet_mac *mac;
+#ifdef CONFIG_PHYLIB
+	int ret;
+#endif
 
 	fm_eth = (struct fm_eth *)dev->priv;
 	mac = fm_eth->mac;
@@ -384,7 +387,11 @@ static int fm_eth_open(struct eth_device *dev, bd_t *bd)
 	fmc_tx_port_graceful_stop_disable(fm_eth);
 
 #ifdef CONFIG_PHYLIB
-	phy_startup(fm_eth->phydev);
+	ret = phy_startup(fm_eth->phydev);
+	if (ret) {
+		printf("%s: Could not initialize\n", fm_eth->phydev->dev->name);
+		return ret;
+	}
 #else
 	fm_eth->phydev->speed = SPEED_1000;
 	fm_eth->phydev->link = 1;
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index e3043dfa207..30f32648974 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -35,6 +35,12 @@ static struct phy_driver KSZ804_driver = {
 	.shutdown = &genphy_shutdown,
 };
 
+#ifndef CONFIG_PHY_MICREL_KSZ9021
+/*
+ * I can't believe Micrel used the exact same part number
+ * for the KSZ9021
+ * Shame Micrel, Shame!!!!!
+ */
 static struct phy_driver KS8721_driver = {
 	.name = "Micrel KS8721BL",
 	.uid = 0x221610,
@@ -44,7 +50,9 @@ static struct phy_driver KS8721_driver = {
 	.startup = &genphy_startup,
 	.shutdown = &genphy_shutdown,
 };
+#endif
 
+#ifdef CONFIG_PHY_MICREL_KSZ9021
 /* ksz9021 PHY Registers */
 #define MII_KSZ9021_EXTENDED_CTRL	0x0b
 #define MII_KSZ9021_EXTENDED_DATAW	0x0c
@@ -127,12 +135,15 @@ static struct phy_driver ksz9021_driver = {
 	.startup = &ksz9021_startup,
 	.shutdown = &genphy_shutdown,
 };
+#endif
 
 int phy_micrel_init(void)
 {
 	phy_register(&KSZ804_driver);
-	phy_register(&KS8721_driver);
+#ifdef CONFIG_PHY_MICREL_KSZ9021
 	phy_register(&ksz9021_driver);
-
+#else
+	phy_register(&KS8721_driver);
+#endif
 	return 0;
 }
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 7d327f766a2..baef60f8274 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -723,10 +723,13 @@ struct phy_device *phy_connect(struct mii_dev *bus, int addr,
 	return phydev;
 }
 
+/*
+ * Start the PHY.  Returns 0 on success, or a negative error code.
+ */
 int phy_startup(struct phy_device *phydev)
 {
 	if (phydev->drv->startup)
-		phydev->drv->startup(phydev);
+		return phydev->drv->startup(phydev);
 
 	return 0;
 }
diff --git a/drivers/net/sh_eth.c b/drivers/net/sh_eth.c
index bb57e4d53a0..268d88428c0 100644
--- a/drivers/net/sh_eth.c
+++ b/drivers/net/sh_eth.c
@@ -415,7 +415,11 @@ static int sh_eth_config(struct sh_eth_dev *eth, bd_t *bd)
 		goto err_phy_cfg;
 	}
 	phy = port_info->phydev;
-	phy_startup(phy);
+	ret = phy_startup(phy);
+	if (ret) {
+		printf(SHETHER_NAME ": phy startup failure\n");
+		return ret;
+	}
 
 	val = 0;
 
diff --git a/drivers/net/tsec.c b/drivers/net/tsec.c
index 3c1c8f0799c..f5e314b9ee0 100644
--- a/drivers/net/tsec.c
+++ b/drivers/net/tsec.c
@@ -480,6 +480,7 @@ static int tsec_init(struct eth_device *dev, bd_t * bd)
 	int i;
 	struct tsec_private *priv = (struct tsec_private *)dev->priv;
 	tsec_t *regs = priv->regs;
+	int ret;
 
 	/* Make sure the controller is stopped */
 	tsec_halt(dev);
@@ -511,7 +512,12 @@ static int tsec_init(struct eth_device *dev, bd_t * bd)
 	startup_tsec(dev);
 
 	/* Start up the PHY */
-	phy_startup(priv->phydev);
+	ret = phy_startup(priv->phydev);
+	if (ret) {
+		printf("Could not initialize PHY %s\n",
+		       priv->phydev->dev->name);
+		return ret;
+	}
 
 	adjust_link(priv, priv->phydev);
 
diff --git a/drivers/net/xilinx_axi_emac.c b/drivers/net/xilinx_axi_emac.c
index 7854a04cae1..d77714440ad 100644
--- a/drivers/net/xilinx_axi_emac.c
+++ b/drivers/net/xilinx_axi_emac.c
@@ -272,7 +272,11 @@ static int setup_phy(struct eth_device *dev)
 	phydev->advertising = phydev->supported;
 	priv->phydev = phydev;
 	phy_config(phydev);
-	phy_startup(phydev);
+	if (phy_startup(phydev)) {
+		printf("axiemac: could not initialize PHY %s\n",
+		       phydev->dev->name);
+		return 0;
+	}
 
 	switch (phydev->speed) {
 	case 1000:
diff --git a/drivers/net/xilinx_ll_temac.c b/drivers/net/xilinx_ll_temac.c
index 27dafc15c00..b67153bec89 100644
--- a/drivers/net/xilinx_ll_temac.c
+++ b/drivers/net/xilinx_ll_temac.c
@@ -232,6 +232,7 @@ static void ll_temac_halt(struct eth_device *dev)
 static int ll_temac_init(struct eth_device *dev, bd_t *bis)
 {
 	struct ll_temac *ll_temac = dev->priv;
+	int ret;
 
 	printf("%s: Xilinx XPS LocalLink Tri-Mode Ether MAC #%d at 0x%08X.\n",
 		dev->name, dev->index, dev->iobase);
@@ -240,7 +241,12 @@ static int ll_temac_init(struct eth_device *dev, bd_t *bis)
 		return -1;
 
 	/* Start up the PHY */
-	phy_startup(ll_temac->phydev);
+	ret = phy_startup(ll_temac->phydev);
+	if (ret) {
+		printf("%s: Could not initialize PHY %s\n",
+		       dev->name, ll_temac->phydev->dev->name);
+		return ret;
+	}
 
 	if (!ll_temac_adjust_link(dev)) {
 		ll_temac_halt(dev);
diff --git a/drivers/usb/eth/asix.c b/drivers/usb/eth/asix.c
index a3bf51a64d7..8fb7fc8c90e 100644
--- a/drivers/usb/eth/asix.c
+++ b/drivers/usb/eth/asix.c
@@ -168,27 +168,28 @@ static inline int asix_set_hw_mii(struct ueth_data *dev)
 
 static int asix_mdio_read(struct ueth_data *dev, int phy_id, int loc)
 {
-	__le16 res;
+	ALLOC_CACHE_ALIGN_BUFFER(__le16, res, 1);
 
 	asix_set_sw_mii(dev);
-	asix_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id, (__u16)loc, 2, &res);
+	asix_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id, (__u16)loc, 2, res);
 	asix_set_hw_mii(dev);
 
 	debug("asix_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n",
-			phy_id, loc, le16_to_cpu(res));
+			phy_id, loc, le16_to_cpu(*res));
 
-	return le16_to_cpu(res);
+	return le16_to_cpu(*res);
 }
 
 static void
 asix_mdio_write(struct ueth_data *dev, int phy_id, int loc, int val)
 {
-	__le16 res = cpu_to_le16(val);
+	ALLOC_CACHE_ALIGN_BUFFER(__le16, res, 1);
+	*res = cpu_to_le16(val);
 
 	debug("asix_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x\n",
 			phy_id, loc, val);
 	asix_set_sw_mii(dev);
-	asix_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, (__u16)loc, 2, &res);
+	asix_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, (__u16)loc, 2, res);
 	asix_set_hw_mii(dev);
 }
 
@@ -210,7 +211,8 @@ static int asix_sw_reset(struct ueth_data *dev, u8 flags)
 
 static inline int asix_get_phy_addr(struct ueth_data *dev)
 {
-	u8 buf[2];
+	ALLOC_CACHE_ALIGN_BUFFER(u8, buf, 2);
+
 	int ret = asix_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf);
 
 	debug("asix_get_phy_addr()\n");
@@ -242,13 +244,14 @@ static int asix_write_medium_mode(struct ueth_data *dev, u16 mode)
 
 static u16 asix_read_rx_ctl(struct ueth_data *dev)
 {
-	__le16 v;
-	int ret = asix_read_cmd(dev, AX_CMD_READ_RX_CTL, 0, 0, 2, &v);
+	ALLOC_CACHE_ALIGN_BUFFER(__le16, v, 1);
+
+	int ret = asix_read_cmd(dev, AX_CMD_READ_RX_CTL, 0, 0, 2, v);
 
 	if (ret < 0)
 		debug("Error reading RX_CTL register: %02x\n", ret);
 	else
-		ret = le16_to_cpu(v);
+		ret = le16_to_cpu(*v);
 	return ret;
 }
 
@@ -313,7 +316,7 @@ static int mii_nway_restart(struct ueth_data *dev)
 static int asix_init(struct eth_device *eth, bd_t *bd)
 {
 	int embd_phy;
-	unsigned char buf[ETH_ALEN];
+	ALLOC_CACHE_ALIGN_BUFFER(unsigned char, buf, ETH_ALEN);
 	u16 rx_ctl;
 	struct ueth_data	*dev = (struct ueth_data *)eth->priv;
 	int timeout = 0;
@@ -425,7 +428,8 @@ static int asix_send(struct eth_device *eth, void *packet, int length)
 	int err;
 	u32 packet_len;
 	int actual_len;
-	unsigned char msg[PKTSIZE + sizeof(packet_len)];
+	ALLOC_CACHE_ALIGN_BUFFER(unsigned char, msg,
+		PKTSIZE + sizeof(packet_len));
 
 	debug("** %s(), len %d\n", __func__, length);
 
@@ -452,7 +456,7 @@ static int asix_send(struct eth_device *eth, void *packet, int length)
 static int asix_recv(struct eth_device *eth)
 {
 	struct ueth_data *dev = (struct ueth_data *)eth->priv;
-	static unsigned char  recv_buf[AX_RX_URB_SIZE];
+	ALLOC_CACHE_ALIGN_BUFFER(unsigned char, recv_buf, AX_RX_URB_SIZE);
 	unsigned char *buf_ptr;
 	int err;
 	int actual_len;
diff --git a/include/configs/mx6qsabrelite.h b/include/configs/mx6qsabrelite.h
index fbd10d670f8..e42fe6b00b4 100644
--- a/include/configs/mx6qsabrelite.h
+++ b/include/configs/mx6qsabrelite.h
@@ -104,6 +104,7 @@
 #define CONFIG_FEC_MXC_PHYADDR		6
 #define CONFIG_PHYLIB
 #define CONFIG_PHY_MICREL
+#define CONFIG_PHY_MICREL_KSZ9021
 
 /* USB Configs */
 #define CONFIG_CMD_USB
diff --git a/net/eth.c b/net/eth.c
index d526264fa65..1a11ce10277 100644
--- a/net/eth.c
+++ b/net/eth.c
@@ -62,6 +62,15 @@ int eth_getenv_enetaddr_by_index(const char *base_name, int index,
 	return eth_getenv_enetaddr(enetvar, enetaddr);
 }
 
+static inline int eth_setenv_enetaddr_by_index(const char *base_name, int index,
+				 uchar *enetaddr)
+{
+	char enetvar[32];
+	sprintf(enetvar, index ? "%s%daddr" : "%saddr", base_name, index);
+	return eth_setenv_enetaddr(enetvar, enetaddr);
+}
+
+
 static int eth_mac_skip(int index)
 {
 	char enetvar[15];
@@ -205,6 +214,11 @@ int eth_write_hwaddr(struct eth_device *dev, const char *base_name,
 		}
 
 		memcpy(dev->enetaddr, env_enetaddr, 6);
+	} else if (is_valid_ether_addr(dev->enetaddr)) {
+		eth_setenv_enetaddr_by_index(base_name, eth_number,
+					     dev->enetaddr);
+		printf("\nWarning: %s using MAC address from net device\n",
+			dev->name);
 	}
 
 	if (dev->write_hwaddr &&
diff --git a/net/tftp.c b/net/tftp.c
index b2e08b4bfb3..59a8ebb3cf3 100644
--- a/net/tftp.c
+++ b/net/tftp.c
@@ -156,7 +156,7 @@ mcast_cleanup(void)
 #endif	/* CONFIG_MCAST_TFTP */
 
 static inline void
-store_block(unsigned block, uchar *src, unsigned len)
+store_block(int block, uchar *src, unsigned len)
 {
 	ulong offset = block * TftpBlkSize + TftpBlockWrapOffset;
 	ulong newsize = offset + len;