Hi Vipin,

On 3/23/2010 1:30 AM, Vipin KUMAR wrote:
> SPEAr SoCs support a synopsys network peripheral. This patch adds the support
> for the same
>
>    
> Signed-off-by: Vipin Kumar<vipin.ku...@st.com>
> ---
>   board/spear/spear300/spear300.c          |    6 +
>   board/spear/spear310/spear310.c          |    6 +
>   board/spear/spear320/spear320.c          |    6 +
>   board/spear/spear600/spear600.c          |    6 +
>   drivers/net/Makefile                     |    1 +
>   drivers/net/spr_eth_syn.c                |  471 
> ++++++++++++++++++++++++++++++
>   include/asm-arm/arch-spear/hardware.h    |    2 +
>   include/asm-arm/arch-spear/spr_eth_syn.h |  262 +++++++++++++++++
>   include/configs/spear-common.h           |   24 ++-
>   include/configs/spear3xx.h               |    3 +
>   include/netdev.h                         |    1 +
>   11 files changed, 785 insertions(+), 3 deletions(-)
>   create mode 100755 drivers/net/spr_eth_syn.c
>   create mode 100644 include/asm-arm/arch-spear/spr_eth_syn.h
>
>    
I'd prefer to see the driver and its associated files submitted as a 
single patch, an board support added later, but it's not a big deal.
> diff --git a/board/spear/spear300/spear300.c b/board/spear/spear300/spear300.c
> index 60ee544..483fe0c 100755
> --- a/board/spear/spear300/spear300.c
> +++ b/board/spear/spear300/spear300.c
> @@ -23,6 +23,7 @@
>
>   #include<common.h>
>   #include<nand.h>
> +#include<netdev.h>
>   #include<asm/io.h>
>   #include<asm/arch/hardware.h>
>   #include<asm/arch/spr_defs.h>
> @@ -56,3 +57,8 @@ int board_nand_init(struct nand_chip *nand)
>
>       return -1;
>   }
> +
> +int board_eth_init(bd_t *bis)
> +{
> +     return spear_mii_initialize(0);
> +}
> diff --git a/board/spear/spear310/spear310.c b/board/spear/spear310/spear310.c
> index 03dfe16..2c35a55 100755
> --- a/board/spear/spear310/spear310.c
> +++ b/board/spear/spear310/spear310.c
> @@ -24,6 +24,7 @@
>
>   #include<common.h>
>   #include<nand.h>
> +#include<netdev.h>
>   #include<asm/io.h>
>   #include<asm/arch/hardware.h>
>   #include<asm/arch/spr_defs.h>
> @@ -57,3 +58,8 @@ int board_nand_init(struct nand_chip *nand)
>
>       return -1;
>   }
> +
> +int board_eth_init(bd_t *bis)
> +{
> +     return spear_mii_initialize(0);
> +}
> diff --git a/board/spear/spear320/spear320.c b/board/spear/spear320/spear320.c
> index 2ba2dbb..a804123 100755
> --- a/board/spear/spear320/spear320.c
> +++ b/board/spear/spear320/spear320.c
> @@ -24,6 +24,7 @@
>
>   #include<common.h>
>   #include<nand.h>
> +#include<netdev.h>
>   #include<asm/io.h>
>   #include<asm/arch/hardware.h>
>   #include<asm/arch/spr_defs.h>
> @@ -57,3 +58,8 @@ int board_nand_init(struct nand_chip *nand)
>
>       return -1;
>   }
> +
> +int board_eth_init(bd_t *bis)
> +{
> +     return spear_mii_initialize(0);
> +}
> diff --git a/board/spear/spear600/spear600.c b/board/spear/spear600/spear600.c
> index eef9a37..f2201a4 100755
> --- a/board/spear/spear600/spear600.c
> +++ b/board/spear/spear600/spear600.c
> @@ -23,6 +23,7 @@
>
>   #include<common.h>
>   #include<nand.h>
> +#include<netdev.h>
>   #include<asm/io.h>
>   #include<asm/arch/hardware.h>
>   #include<asm/arch/spr_defs.h>
> @@ -51,3 +52,8 @@ int board_nand_init(struct nand_chip *nand)
>
>       return -1;
>   }
> +
> +int board_eth_init(bd_t *bis)
> +{
> +     return spear_mii_initialize(0);
> +}
> diff --git a/drivers/net/Makefile b/drivers/net/Makefile
> index 1ec0ba1..b230874 100644
> --- a/drivers/net/Makefile
> +++ b/drivers/net/Makefile
> @@ -68,6 +68,7 @@ COBJS-$(CONFIG_DRIVER_S3C4510_ETH) += s3c4510b_eth.o
>   COBJS-$(CONFIG_SH_ETHER) += sh_eth.o
>   COBJS-$(CONFIG_SMC91111) += smc91111.o
>   COBJS-$(CONFIG_SMC911X) += smc911x.o
> +COBJS-$(CONFIG_SPEAR_ETHERNET) += spr_eth_syn.o
>    
Please ensure that the CONFIG and driver name convey the same 
information (these ones don't)
>   COBJS-$(CONFIG_TIGON3) += tigon3.o bcm570x_autoneg.o 5701rls.o
>   COBJS-$(CONFIG_DRIVER_TI_EMAC) += davinci_emac.o
>   COBJS-$(CONFIG_TSEC_ENET) += tsec.o
> diff --git a/drivers/net/spr_eth_syn.c b/drivers/net/spr_eth_syn.c
> new file mode 100755
> index 0000000..ff90572
> --- /dev/null
> +++ b/drivers/net/spr_eth_syn.c
> @@ -0,0 +1,471 @@
> +/*
> + * (C) Copyright 2009
> + * Vipin Kumar, ST Micoelectronics, vipin.ku...@st.com.
> + *
> + * (C) Copyright 2008
> + * Deepak Sikri, ST Micoelectronics, deepak.si...@st.com.
> + *
> + * See file CREDITS for list of people who contributed to this
> + * project.
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License as
> + * published by the Free Software Foundation; either version 2 of
> + * the License, or (at your option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + * GNU General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> + * along with this program; if not, write to the Free Software
> + * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
> + * MA 02111-1307 USA
> + */
> +
> +#include<common.h>
> +#include<miiphy.h>
> +#include<malloc.h>
> +#include<asm/errno.h>
> +#include<asm/io.h>
> +#include<asm/arch/hardware.h>
> +#include<asm/arch/spr_eth_syn.h>
> +
> +static struct eth_dma_regs *dma_p =
> +     (struct eth_dma_regs *)CONFIG_SPEAR_ETHDMABASE;
> +static struct eth_mac_regs *mac_p =
> +     (struct eth_mac_regs *)CONFIG_SPEAR_ETHMACBASE;
> +
>    
No globals please.  It makes it impossible to have more than one 
instance of the driver.  Put data in dev->priv instead.
> +static struct eth_device *netdev;
> +
> +static struct dmamacdescr
> +     tx_mac_descrtable[CONFIG_TX_DESCR_NUM] __attribute__ ((aligned(256)));
> +static struct dmamacdescr
> +     rx_mac_descrtable[CONFIG_RX_DESCR_NUM] __attribute__ ((aligned(256)));
> +
> +static u32 tx_currdescnum;
> +static u32 rx_currdescnum;
> +
> +static char txbuffs[TX_TOTAL_BUFSIZE] __attribute__ ((aligned(2048)));
> +static char rxbuffs[RX_TOTAL_BUFSIZE] __attribute__ ((aligned(2048)));
> +
> +static void xfer_enable(void)
>    
All functions should take eth_device * as argument so you can access 
private data
> +{
> +     /*
> +      * Start/Enable xfer at dma as well as mac level
> +      */
> +     writel(readl(&dma_p->opmode) | RXSTART,&dma_p->opmode);
> +     writel(readl(&dma_p->opmode) | TXSTART,&dma_p->opmode);
> +
> +     writel(readl(&mac_p->conf) | RXENABLE,&mac_p->conf);
> +     writel(readl(&mac_p->conf) | TXENABLE,&mac_p->conf);
> +}
> +
> +static void tx_descs_init(u32 max_desc_num)
> +{
> +     u32 idx;
> +     struct dmamacdescr *desc_p;
> +
> +     for (idx = 0; idx<  max_desc_num; idx++) {
> +
> +             desc_p =&tx_mac_descrtable[idx];
> +             desc_p->dmamac_addr =&txbuffs[idx * CONFIG_ETH_BUFSIZE];
> +             desc_p->dmamac_next =&tx_mac_descrtable[idx + 1];
> +
> +#if defined(CONFIG_SPEAR_ALTDESC)
> +             desc_p->txrx_status&= ~(DESC_TXSTS_TXINT | DESC_TXSTS_TXLAST |
> +                             DESC_TXSTS_TXFIRST | DESC_TXSTS_TXCRCDIS | \
> +                             DESC_TXSTS_TXCHECKINSCTRL | \
> +                             DESC_TXSTS_TXRINGEND | DESC_TXSTS_TXPADDIS);
> +
> +             desc_p->txrx_status |= DESC_TXSTS_TXCHAIN;
> +             desc_p->dmamac_cntl = 0;
> +             desc_p->txrx_status&= ~(DESC_TXSTS_MSK | DESC_TXSTS_OWNBYDMA);
> +#else
> +             desc_p->dmamac_cntl = DESC_TXCTRL_TXCHAIN;
> +             desc_p->txrx_status = 0;
> +#endif
> +     }
> +
> +     /* Correcting the last pointer of the chain */
> +     desc_p->dmamac_next =&tx_mac_descrtable[0];
> +
> +     writel((ulong)&tx_mac_descrtable[0],&dma_p->txdesclistaddr);
> +}
> +
> +static void rx_descs_init(u32 max_desc_num)
> +{
> +     u32 idx;
> +     struct dmamacdescr *desc_p;
> +
> +     for (idx = 0; idx<  max_desc_num; idx++) {
> +
> +             desc_p =&rx_mac_descrtable[idx];
> +             desc_p->dmamac_addr =&rxbuffs[idx * CONFIG_ETH_BUFSIZE];
> +             desc_p->dmamac_next =&rx_mac_descrtable[idx + 1];
> +
> +             desc_p->dmamac_cntl =
> +                     (MAC_MAX_FRAME_SZ&  DESC_RXCTRL_SIZE1MASK) | \
> +                                   DESC_RXCTRL_RXCHAIN;
> +
> +             desc_p->txrx_status = DESC_RXSTS_OWNBYDMA;
> +     }
> +
> +     /* Correcting the last pointer of the chain */
> +     desc_p->dmamac_next =&rx_mac_descrtable[0];
> +
> +     writel((ulong)&rx_mac_descrtable[0],&dma_p->rxdesclistaddr);
> +}
> +
> +static void descs_init(void)
> +{
> +     tx_descs_init(CONFIG_TX_DESCR_NUM);
> +     rx_descs_init(CONFIG_RX_DESCR_NUM);
> +}
> +
> +static int set_hwaddr(void)
> +{
> +     u8 mac_id[6];
> +     u32 macid_lo, macid_hi;
> +
> +     if (eth_getenv_enetaddr("ethaddr", mac_id)) {
>    
Please read the documentation and look at other drivers to see how they 
handle the environment.  Hint: you get it from the eth_device *.
> +             macid_lo = mac_id[0] + (mac_id[1]<<  8) + \
> +                        (mac_id[2]<<  16) + (mac_id[3]<<  24);
> +             macid_hi = mac_id[4] + (mac_id[5]<<  8);
> +
> +             writel(macid_hi,&mac_p->macaddr0hi);
> +             writel(macid_lo,&mac_p->macaddr0lo);
> +
> +             return 0;
> +     }
> +     return -1;
> +}
> +
> +static void mac_reset(u32 timeout)
> +{
> +     writel(DMAMAC_SRST,&dma_p->busmode);
> +     writel(MII_PORTSELECT,&mac_p->conf);
> +
> +     do {
> +             if (!(readl(&dma_p->busmode)&  DMAMAC_SRST))
> +                     break;
> +             udelay(1000);
> +     } while (timeout--);
> +}
> +
> +static int spear_eth_init(struct eth_device *dev, bd_t *bis)
> +{
> +     struct spear_eth_dev *priv = dev->priv;
> +     u32 conf;
> +
> +     /* Reset ethernet hardware */
> +     mac_reset(CONFIG_MACRESET_TIMEOUT);
> +
> +     if (set_hwaddr()<  0)
> +             return -1;
> +
> +     writel(FIXEDBURST | RXHIGHPRIO | BURST_16,&dma_p->busmode);
> +
> +     writel(FLUSHTXFIFO | readl(&dma_p->opmode),&dma_p->opmode);
> +     writel(STOREFORWARD | TXSECONDFRAME,&dma_p->opmode);
> +
> +     conf = FRAMEBURSTENABLE | DISABLERXOWN;
> +
> +     if (priv->speed != SPEED_1000M)
> +             conf |= MII_PORTSELECT;
> +
> +     if (priv->duplex == FULL_DUPLEX)
> +             conf |= FULLDPLXMODE;
> +
> +     writel(conf,&mac_p->conf);
> +
> +     descs_init();
> +     xfer_enable();
> +
> +     return 0;
> +}
> +
> +static int spear_eth_send(struct eth_device *dev, volatile void *packet,
> +             int length)
> +{
> +     struct dmamacdescr *desc_p =&tx_mac_descrtable[tx_currdescnum];
> +
> +     /* Check if the descriptor is owned by CPU */
> +     if (desc_p->txrx_status&  DESC_TXSTS_OWNBYDMA) {
> +             printf("eth_send : CPU not owner of tx frame\n");
> +             return -1;
> +     }
> +
> +     memcpy((void *)desc_p->dmamac_addr, (void *)packet, length);
> +
> +#if defined(CONFIG_SPEAR_ALTDESC)
> +     desc_p->txrx_status |= DESC_TXSTS_TXFIRST | DESC_TXSTS_TXLAST;
> +     desc_p->dmamac_cntl |= (length<<  DESC_TXCTRL_SIZE1SHFT)&  \
> +                            DESC_TXCTRL_SIZE1MASK;
> +
> +     desc_p->txrx_status&= ~(DESC_TXSTS_MSK);
> +     desc_p->txrx_status |= DESC_TXSTS_OWNBYDMA;
> +#else
> +     desc_p->dmamac_cntl |= ((length<<  DESC_TXCTRL_SIZE1SHFT)&  \
> +                            DESC_TXCTRL_SIZE1MASK) | DESC_TXCTRL_TXLAST | \
> +                            DESC_TXCTRL_TXFIRST;
> +
> +     desc_p->txrx_status = DESC_TXSTS_OWNBYDMA;
> +#endif
> +
> +     /* Test the wrap-around condition. */
> +     if (++tx_currdescnum>= CONFIG_TX_DESCR_NUM)
> +             tx_currdescnum = 0;
> +
> +     /* Start the transmission */
> +     writel(POLL_DATA,&dma_p->txpolldemand);
> +
> +     return 0;
> +}
> +
> +static int spear_eth_recv(struct eth_device *dev)
> +{
> +     struct dmamacdescr *desc_p =&rx_mac_descrtable[rx_currdescnum];
> +     u32 status = desc_p->txrx_status;
> +     int length = 0;
> +
> +     /* Check  if the owner is the CPU */
> +     if (!(status&  DESC_RXSTS_OWNBYDMA)) {
> +
> +             length = (status&  DESC_RXSTS_FRMLENMSK)>>  \
> +                      DESC_RXSTS_FRMLENSHFT;
> +
> +             NetReceive(desc_p->dmamac_addr, length);
> +
> +             /*
> +              * Make the current descriptor valid again and go to
> +              * the next one
> +              */
> +             desc_p->txrx_status |= DESC_RXSTS_OWNBYDMA;
> +
> +             /* Test the wrap-around condition. */
> +             if (++rx_currdescnum>= CONFIG_RX_DESCR_NUM)
> +                     rx_currdescnum = 0;
> +     }
> +
> +     return length;
> +}
> +
> +static void spear_eth_halt(struct eth_device *dev)
> +{
> +     mac_reset(CONFIG_MACRESET_TIMEOUT);
> +     tx_currdescnum = rx_currdescnum = 0;
> +}
> +
> +static int eth_mdio_read(char *devname, u8 addr, u8 reg, u16 *val)
> +{
> +     u32 miiaddr;
> +     u32 timeout = CONFIG_MDIO_TIMEOUT;
> +
> +     miiaddr = ((addr<<  MIIADDRSHIFT)&  MII_ADDRMSK) | \
> +               ((reg<<  MIIREGSHIFT)&  MII_REGMSK);
> +
> +     writel(miiaddr | MII_CLKRANGE_150_250M | MII_BUSY,&mac_p->miiaddr);
> +
> +     do {
> +             if (!(readl(&mac_p->miiaddr)&  MII_BUSY))
> +                     break;
> +             udelay(1000);
> +     } while (timeout--);
> +
> +     *val = readl(&mac_p->miidata);
> +
> +     return 0;
> +}
> +
> +static int eth_mdio_write(char *devname, u8 addr, u8 reg, u16 val)
> +{
> +     u32 miiaddr;
> +     u32 timeout = CONFIG_MDIO_TIMEOUT;
> +     u16 value;
> +
> +     writel(val,&mac_p->miidata);
> +     miiaddr = ((addr<<  MIIADDRSHIFT)&  MII_ADDRMSK) | \
> +               ((reg<<  MIIREGSHIFT)&  MII_REGMSK) | MII_WRITE;
> +
> +     writel(miiaddr | MII_CLKRANGE_150_250M | MII_BUSY,&mac_p->miiaddr);
> +
> +     do {
> +             if (!(readl(&mac_p->miiaddr)&  MII_BUSY))
> +                     break;
> +             udelay(1000);
> +     } while (timeout--);
> +
> +     /* Needed as a fix for ST-Phy */
> +     eth_mdio_read(devname, addr, reg,&value);
> +
> +     return 0;
> +}
> +
> +static u8 find_phy(struct eth_device *dev)
> +{
> +     u8 phy_addr = 0;
> +     u16 ctrl, oldctrl;
> +
> +     do {
> +             eth_mdio_read(dev->name, phy_addr, PHY_BMCR,&ctrl);
> +             oldctrl = ctrl&  PHY_BMCR_AUTON;
> +
> +             ctrl ^= PHY_BMCR_AUTON;
> +             eth_mdio_write(dev->name, phy_addr, PHY_BMCR, ctrl);
> +             eth_mdio_read(dev->name, phy_addr, PHY_BMCR,&ctrl);
> +             ctrl&= PHY_BMCR_AUTON;
> +
> +             if (ctrl == oldctrl) {
> +                     phy_addr++;
> +             } else {
> +                     ctrl ^= PHY_BMCR_AUTON;
> +                     eth_mdio_write(dev->name, phy_addr, PHY_BMCR, ctrl);
> +                     break;
> +             }
> +     } while (phy_addr<  32);
> +
> +     return phy_addr;
> +}
> +
> +static void spear_reset_phy(struct eth_device *dev)
> +{
> +     struct spear_eth_dev *priv = dev->priv;
> +     u16 ctrl;
> +     u32 timeout = CONFIG_PHYRESET_TIMEOUT;
> +     u32 phy_addr = priv->address;
> +
> +     eth_mdio_write(dev->name, phy_addr, PHY_BMCR, PHY_BMCR_RESET);
> +     do {
> +             eth_mdio_read(dev->name, phy_addr, PHY_BMCR,&ctrl);
> +             if (!(ctrl&  PHY_BMCR_RESET))
> +                     break;
> +             udelay(1000);
> +     } while (timeout--);
> +
> +     udelay(CONFIG_PHY_RESET_DELAY);
> +}
> +
> +void reset_phy(void)
>    
Something with such a generic name should not be public
> +{
> +     spear_reset_phy(netdev);
> +}
> +
> +static void configure_phy(struct eth_device *dev)
> +{
> +     struct spear_eth_dev *priv = dev->priv;
> +     char *an, *sp, *du;
> +     u8 phy_addr;
> +     u16 bmcr, bmsr, ctrl;
> +     u32 timeout;
> +     u16 anlpar, btsr;
> +
> +     priv->address = find_phy(dev);
> +     phy_addr = priv->address;
> +
> +     spear_reset_phy(netdev);
> +
> +     an = getenv("ethautoneg");
>    
Is this a new environment variable?  If so, it needs to be interface 
#-specific, which is tricky.  Does this really need to come from the 
environment?  Same goes for all of these...  Since you're using the 
U-boot MII framework, I'd much rather see the common code changed to 
support this than a specific driver.
> +     if ((an != NULL)&&  strcmp(an, "n")) {
> +             bmcr = PHY_BMCR_AUTON | PHY_BMCR_RST_NEG | PHY_BMCR_100MB | \
> +                    PHY_BMCR_DPLX | PHY_BMCR_1000_MBPS;
> +     } else {
> +             bmcr = PHY_BMCR_100MB | PHY_BMCR_DPLX;
> +
> +             sp = getenv("ethspeed");
> +             if ((sp != NULL)&&  (!strcmp(sp, "10M")))
> +                     bmcr&= ~PHY_BMCR_100MB;
> +
> +             du = getenv("ethduplex");
> +             if ((du != NULL)&&  (!strcmp(du, "half")))
> +                     bmcr&= ~PHY_BMCR_DPLX;
> +     }
> +
> +     eth_mdio_write(dev->name, phy_addr, PHY_BMCR, bmcr);
> +
> +     /* Read the phy status register and populate priv structure */
> +     if ((an != NULL)&&  strcmp(an, "n")) {
> +
> +             timeout = CONFIG_AUTONEG_TIMEOUT;
> +             do {
> +                     eth_mdio_read(dev->name, phy_addr, PHY_BMSR,&bmsr);
> +                     if (bmsr&  PHY_BMSR_AUTN_COMP)
> +                             break;
> +                     udelay(1000);
> +             } while (timeout--);
> +
> +             eth_mdio_read(dev->name, phy_addr, PHY_ANLPAR,&anlpar);
> +             eth_mdio_read(dev->name, phy_addr, PHY_1000BTSR,&btsr);
> +
> +             if (btsr&  (PHY_1000BTSR_1000FD | PHY_1000BTSR_1000HD)) {
> +                     priv->speed = SPEED_1000M;
> +                     if (btsr&  PHY_1000BTSR_1000FD)
> +                             priv->duplex = FULL_DUPLEX;
> +                     else
> +                             priv->duplex = HALF_DUPLEX;
> +             } else {
> +                     if (anlpar&  PHY_ANLPAR_100)
> +                             priv->speed = SPEED_100M;
> +                     else
> +                             priv->speed = SPEED_10M;
> +
> +                     if (anlpar&  (PHY_ANLPAR_10FD | PHY_ANLPAR_TXFD))
> +                             priv->duplex = FULL_DUPLEX;
> +                     else
> +                             priv->duplex = HALF_DUPLEX;
> +             }
> +     } else {
> +             eth_mdio_read(dev->name, phy_addr, PHY_BMCR,&ctrl);
> +
> +             if (ctrl&  PHY_BMCR_DPLX)
> +                     priv->duplex = FULL_DUPLEX;
> +             else
> +                     priv->duplex = HALF_DUPLEX;
> +
> +             if (ctrl&  PHY_BMCR_1000_MBPS)
> +                     priv->speed = SPEED_1000M;
> +             else if (ctrl&  PHY_BMCR_100_MBPS)
> +                     priv->speed = SPEED_100M;
> +             else
> +                     priv->speed = SPEED_10M;
> +     }
> +}
> +
> +int spear_mii_initialize(u32 id)
>    
Please pass in the base address rather than hard coding it.  Look how 
other drivers do this (CS8900 is a good example)
> +{
> +     struct spear_eth_dev *priv;
> +
> +     netdev = (struct eth_device *) malloc(sizeof(struct eth_device));
> +     if (!netdev)
> +             return -ENOMEM;
> +
> +     priv = (struct spear_eth_dev *) malloc(sizeof(struct spear_eth_dev));
> +     if (!priv) {
> +             free(netdev);
> +             return -ENOMEM;
> +     }
> +
> +     memset(netdev, 0, sizeof(struct eth_device));
> +     memset(priv, 0, sizeof(struct spear_eth_dev));
> +
> +     sprintf(netdev->name, "mii%d", id);
> +     priv->dev = netdev;
> +     netdev->iobase = 0;
> +     netdev->priv = priv;
> +
> +     mac_reset(CONFIG_MACRESET_TIMEOUT);
> +     configure_phy(netdev);
> +
> +     netdev->init = spear_eth_init;
> +     netdev->send = spear_eth_send;
> +     netdev->recv = spear_eth_recv;
> +     netdev->halt = spear_eth_halt;
> +
> +     eth_register(netdev);
> +
> +#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
> +     miiphy_register(netdev->name, eth_mdio_read, eth_mdio_write);
> +#endif
> +     return 0;
> +}
> diff --git a/include/asm-arm/arch-spear/hardware.h 
> b/include/asm-arm/arch-spear/hardware.h
> index 818f36c..7133b3c 100644
> --- a/include/asm-arm/arch-spear/hardware.h
> +++ b/include/asm-arm/arch-spear/hardware.h
> @@ -31,6 +31,8 @@
>   #define CONFIG_SPEAR_SYSCNTLBASE            (0xFCA00000)
>   #define CONFIG_SPEAR_TIMERBASE                      (0xFC800000)
>   #define CONFIG_SPEAR_MISCBASE                       (0xFCA80000)
> +#define CONFIG_SPEAR_ETHMACBASE                      (0xE0800000)
> +#define CONFIG_SPEAR_ETHDMABASE                      (0xE0801000)
>
>   #define CONFIG_SYS_NAND_CLE                 (1<<  16)
>   #define CONFIG_SYS_NAND_ALE                 (1<<  17)
> diff --git a/include/asm-arm/arch-spear/spr_eth_syn.h 
> b/include/asm-arm/arch-spear/spr_eth_syn.h
>    
Please put this header in with the driver.  You're artificially making 
this ARM-specific.
> new file mode 100644
> index 0000000..3a745ef
> --- /dev/null
> +++ b/include/asm-arm/arch-spear/spr_eth_syn.h
> @@ -0,0 +1,262 @@
> +/*
> + * (C) Copyright 2009
> + * Vipin Kumar, ST Micoelectronics, vipin.ku...@st.com.
> + *
> + * See file CREDITS for list of people who contributed to this
> + * project.
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License as
> + * published by the Free Software Foundation; either version 2 of
> + * the License, or (at your option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + * GNU General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> + * along with this program; if not, write to the Free Software
> + * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
> + * MA 02111-1307 USA
> + */
> +
> +#ifndef _SPR_ETH_SYN_H
> +#define _SPR_ETH_SYN_H
> +
> +#define CONFIG_TX_DESCR_NUM  16
> +#define CONFIG_RX_DESCR_NUM  16
> +#define CONFIG_ETH_BUFSIZE   2048
> +#define TX_TOTAL_BUFSIZE     (CONFIG_ETH_BUFSIZE * CONFIG_TX_DESCR_NUM)
> +#define RX_TOTAL_BUFSIZE     (CONFIG_ETH_BUFSIZE * CONFIG_RX_DESCR_NUM)
> +
> +#define CONFIG_MACRESET_TIMEOUT      (3 * CONFIG_SYS_HZ)
> +#define CONFIG_MDIO_TIMEOUT  (3 * CONFIG_SYS_HZ)
> +#define CONFIG_PHYRESET_TIMEOUT      (3 * CONFIG_SYS_HZ)
> +#define CONFIG_AUTONEG_TIMEOUT       (5 * CONFIG_SYS_HZ)
> +
> +struct eth_mac_regs {
> +     u32 conf;               /* 0x00 */
> +     u32 framefilt;          /* 0x04 */
> +     u32 hashtablehigh;      /* 0x08 */
> +     u32 hashtablelow;       /* 0x0c */
> +     u32 miiaddr;            /* 0x10 */
> +     u32 miidata;            /* 0x14 */
> +     u32 flowcontrol;        /* 0x18 */
> +     u32 vlantag;            /* 0x1c */
> +     u32 version;            /* 0x20 */
> +     u8 reserved_1[4];
> +     u32 intreg;             /* 0x28 */
> +     u32 intmask;            /* 0x2c */
> +     u8 reserved_2[0x40 - 0x30];
> +     u32 macaddr0hi;         /* 0x30 */
> +     u32 macaddr0lo;         /* 0x34 */
> +};
> +
> +/* MAC configuration register definitions */
> +#define FRAMEBURSTENABLE     (1<<  21)
> +#define MII_PORTSELECT               (1<<  15)
> +#define DISABLERXOWN         (1<<  13)
> +#define FULLDPLXMODE         (1<<  11)
> +#define RXENABLE             (1<<  2)
> +#define TXENABLE             (1<<  3)
> +
> +/* MII address register definitions */
> +#define MII_BUSY             (1<<  0)
> +#define MII_WRITE            (1<<  1)
> +#define MII_CLKRANGE_60_100M (0)
> +#define MII_CLKRANGE_100_150M        (0x4)
> +#define MII_CLKRANGE_20_35M  (0x8)
> +#define MII_CLKRANGE_35_60M  (0xC)
> +#define MII_CLKRANGE_150_250M        (0x10)
> +#define MII_CLKRANGE_250_300M        (0x14)
> +
> +#define MIIADDRSHIFT         (11)
> +#define MIIREGSHIFT          (6)
> +#define MII_REGMSK           (0x1F<<  6)
> +#define MII_ADDRMSK          (0x1F<<  11)
> +
> +
> +struct eth_dma_regs {
> +     u32 busmode;            /* 0x00 */
> +     u32 txpolldemand;       /* 0x04 */
> +     u32 rxpolldemand;       /* 0x08 */
> +     u32 rxdesclistaddr;     /* 0x0c */
> +     u32 txdesclistaddr;     /* 0x10 */
> +     u32 status;             /* 0x14 */
> +     u32 opmode;             /* 0x18 */
> +     u32 intenable;          /* 0x1c */
> +     u8 reserved[0x48 - 0x20];
> +     u32 currhosttxdesc;     /* 0x48 */
> +     u32 currhostrxdesc;     /* 0x4c */
> +     u32 currhosttxbuffaddr; /* 0x50 */
> +     u32 currhostrxbuffaddr; /* 0x54 */
> +};
> +
> +/* Bus mode register definitions */
> +#define FIXEDBURST           (1<<  16)
> +#define BURST_1                      (1<<  8)
> +#define BURST_2                      (2<<  8)
> +#define BURST_4                      (4<<  8)
> +#define BURST_8                      (8<<  8)
> +#define BURST_16             (16<<  8)
> +#define BURST_32             (32<<  8)
> +#define RXHIGHPRIO           (1<<  1)
> +#define DMAMAC_SRST          (1<<  0)
> +
> +/* Poll demand definitions */
> +#define POLL_DATA            (0xFFFFFFFF)
> +
> +/* Operation mode definitions */
> +#define STOREFORWARD         (1<<  21)
> +#define FLUSHTXFIFO          (1<<  20)
> +#define TXSTART                      (1<<  13)
> +#define TXSECONDFRAME                (1<<  2)
> +#define RXSTART                      (1<<  1)
> +
> +/* Descriptior related definitions */
> +#define MAC_MAX_FRAME_SZ     (1528)
> +
> +struct dmamacdescr {
> +     u32 txrx_status;
> +     u32 dmamac_cntl;
> +     void *dmamac_addr;
> +     struct dmamacdescr *dmamac_next;
> +};
> +
> +/*
> + * txrx_status definitions
> + */
> +
> +/* tx status bits definitions */
> +#if defined(CONFIG_SPEAR_ALTDESC)
> +
> +#define DESC_TXSTS_OWNBYDMA          (1<<  31)
> +#define DESC_TXSTS_TXINT             (1<<  30)
> +#define DESC_TXSTS_TXLAST            (1<<  29)
> +#define DESC_TXSTS_TXFIRST           (1<<  28)
> +#define DESC_TXSTS_TXCRCDIS          (1<<  27)
> +
> +#define DESC_TXSTS_TXPADDIS          (1<<  26)
> +#define DESC_TXSTS_TXCHECKINSCTRL    (3<<  22)
> +#define DESC_TXSTS_TXRINGEND         (1<<  21)
> +#define DESC_TXSTS_TXCHAIN           (1<<  20)
> +#define DESC_TXSTS_MSK                       (0x1FFFF<<  0)
> +
> +#else
> +
> +#define DESC_TXSTS_OWNBYDMA          (1<<  31)
> +#define DESC_TXSTS_MSK                       (0x1FFFF<<  0)
> +
> +#endif
> +
> +/* rx status bits definitions */
> +#define DESC_RXSTS_OWNBYDMA          (1<<  31)
> +#define DESC_RXSTS_DAFILTERFAIL              (1<<  30)
> +#define DESC_RXSTS_FRMLENMSK         (0x3FFF<<  16)
> +#define DESC_RXSTS_FRMLENSHFT                (16)
> +
> +#define DESC_RXSTS_ERROR             (1<<  15)
> +#define DESC_RXSTS_RXTRUNCATED               (1<<  14)
> +#define DESC_RXSTS_SAFILTERFAIL              (1<<  13)
> +#define DESC_RXSTS_RXIPC_GIANTFRAME  (1<<  12)
> +#define DESC_RXSTS_RXDAMAGED         (1<<  11)
> +#define DESC_RXSTS_RXVLANTAG         (1<<  10)
> +#define DESC_RXSTS_RXFIRST           (1<<  9)
> +#define DESC_RXSTS_RXLAST            (1<<  8)
> +#define DESC_RXSTS_RXIPC_GIANT               (1<<  7)
> +#define DESC_RXSTS_RXCOLLISION               (1<<  6)
> +#define DESC_RXSTS_RXFRAMEETHER              (1<<  5)
> +#define DESC_RXSTS_RXWATCHDOG                (1<<  4)
> +#define DESC_RXSTS_RXMIIERROR                (1<<  3)
> +#define DESC_RXSTS_RXDRIBBLING               (1<<  2)
> +#define DESC_RXSTS_RXCRC             (1<<  1)
> +
> +/*
> + * dmamac_cntl definitions
> + */
> +
> +/* tx control bits definitions */
> +#if defined(CONFIG_SPEAR_ALTDESC)
> +
> +#define DESC_TXCTRL_SIZE1MASK                (0x1FFF<<  0)
> +#define DESC_TXCTRL_SIZE1SHFT                (0)
> +#define DESC_TXCTRL_SIZE2MASK                (0x1FFF<<  16)
> +#define DESC_TXCTRL_SIZE2SHFT                (16)
> +
> +#else
> +
> +#define DESC_TXCTRL_TXINT            (1<<  31)
> +#define DESC_TXCTRL_TXLAST           (1<<  30)
> +#define DESC_TXCTRL_TXFIRST          (1<<  29)
> +#define DESC_TXCTRL_TXCHECKINSCTRL   (3<<  27)
> +#define DESC_TXCTRL_TXCRCDIS         (1<<  26)
> +#define DESC_TXCTRL_TXRINGEND                (1<<  25)
> +#define DESC_TXCTRL_TXCHAIN          (1<<  24)
> +
> +#define DESC_TXCTRL_SIZE1MASK                (0x7FF<<  0)
> +#define DESC_TXCTRL_SIZE1SHFT                (0)
> +#define DESC_TXCTRL_SIZE2MASK                (0x7FF<<  11)
> +#define DESC_TXCTRL_SIZE2SHFT                (11)
> +
> +#endif
> +
> +/* rx control bits definitions */
> +#if defined(CONFIG_SPEAR_ALTDESC)
> +
> +#define DESC_RXCTRL_RXINTDIS         (1<<  31)
> +#define DESC_RXCTRL_RXRINGEND                (1<<  15)
> +#define DESC_RXCTRL_RXCHAIN          (1<<  14)
> +
> +#define DESC_RXCTRL_SIZE1MASK                (0x1FFF<<  0)
> +#define DESC_RXCTRL_SIZE1SHFT                (0)
> +#define DESC_RXCTRL_SIZE2MASK                (0x1FFF<<  16)
> +#define DESC_RXCTRL_SIZE2SHFT                (16)
> +
> +#else
> +
> +#define DESC_RXCTRL_RXINTDIS         (1<<  31)
> +#define DESC_RXCTRL_RXRINGEND                (1<<  25)
> +#define DESC_RXCTRL_RXCHAIN          (1<<  24)
> +
> +#define DESC_RXCTRL_SIZE1MASK                (0x7FF<<  0)
> +#define DESC_RXCTRL_SIZE1SHFT                (0)
> +#define DESC_RXCTRL_SIZE2MASK                (0x7FF<<  11)
> +#define DESC_RXCTRL_SIZE2SHFT                (11)
> +
> +#endif
> +
> +/*
> + * dmamac_addr definitions
> + */
> +
> +/* tx addr register bits definitions */
> +
> +/* rx addr register bits definitions */
> +
> +
> +/*
> + * dmamac_next definitions
> + */
> +
> +/* tx next register bits definitions */
> +
> +/* rx next register bits definitions */
> +
> +struct spear_eth_dev {
> +     u32 address;
> +     u32 speed;
> +     u32 duplex;
> +     struct eth_device *dev;
>    

> +};
> +
> +/* Speed specific definitions */
> +#define SPEED_10M            1
> +#define SPEED_100M           2
> +#define SPEED_1000M          3
> +
> +/* Duplex mode specific definitions */
> +#define HALF_DUPLEX          1
> +#define FULL_DUPLEX          2
> +
> +#endif
> diff --git a/include/configs/spear-common.h b/include/configs/spear-common.h
> index cc52e39..fe97e94 100644
> --- a/include/configs/spear-common.h
> +++ b/include/configs/spear-common.h
> @@ -27,6 +27,19 @@
>    * Common configurations used for both spear3xx as well as spear6xx
>    */
>
> +/* Ethernet configuration */
> +#define CONFIG_SPEAR_ETHERNET
> +#define CONFIG_MII
> +#define CONFIG_NET_MULTI
> +#define CONFIG_PHY_RESET_DELAY                       (10000)         /* in 
> us */
> +#define CONFIG_EXTRA_ENV_AUTONEG             "ethautoneg=n\0"
> +#define CONFIG_EXTRA_ENV_ETHSPEED            "ethspeed=100M\0"
> +#define CONFIG_EXTRA_ENV_ETHDUPLEX           "ethduplex=full\0"
> +#define CONFIG_ETHADDR                               00:80:E1:11:22:33
> +#define CONFIG_NETMASK                               255.255.255.0
> +#define CONFIG_IPADDR                                192.168.1.10
> +#define CONFIG_SERVERIP                              192.168.1.1
>    
Please remove all default addresses/masks
> +
>   /* USBD driver configuration */
>   #define CONFIG_SPEARUDC
>   #define CONFIG_USB_DEVICE
> @@ -99,11 +112,13 @@
>   #define CONFIG_CMD_MEMORY
>   #define CONFIG_CMD_RUN
>   #define CONFIG_CMD_SAVES
> +#define CONFIG_CMD_MII
> +#define CONFIG_CMD_NET
> +#define CONFIG_CMD_PING
> +#define CONFIG_CMD_DHCP
>
>   /* This must be included AFTER the definition of CONFIG_COMMANDS (if any) */
>   #include<config_cmd_default.h>
> -#undef CONFIG_CMD_NET
> -#undef CONFIG_CMD_NFS
>
>   /*
>    * Default Environment Varible definitions
> @@ -195,7 +210,10 @@
>   #define CONFIG_SYS_CONSOLE_INFO_QUIET               1
>   #define CONFIG_SYS_64BIT_VSPRINTF           1
>
> -#define CONFIG_EXTRA_ENV_SETTINGS            CONFIG_EXTRA_ENV_USBTTY
> +#define CONFIG_EXTRA_ENV_SETTINGS            CONFIG_EXTRA_ENV_USBTTY \
> +                                             CONFIG_EXTRA_ENV_AUTONEG \
> +                                             CONFIG_EXTRA_ENV_ETHSPEED \
> +                                             CONFIG_EXTRA_ENV_ETHDUPLEX
>
>   /* Stack sizes */
>   #define CONFIG_STACKSIZE                    (128*1024)
> diff --git a/include/configs/spear3xx.h b/include/configs/spear3xx.h
> index 0248aba..b69e734 100755
> --- a/include/configs/spear3xx.h
> +++ b/include/configs/spear3xx.h
> @@ -41,6 +41,9 @@
>
>   #include<configs/spear-common.h>
>
> +/* Ethernet configuration */
> +#define CONFIG_SPEAR_ALTDESC
> +
>   /* Serial Configuration (PL011) */
>   #define CONFIG_SYS_SERIAL0                  0xD0000000
>
> diff --git a/include/netdev.h b/include/netdev.h
> index 1dd80f0..bd29697 100644
> --- a/include/netdev.h
> +++ b/include/netdev.h
> @@ -79,6 +79,7 @@ int scc_initialize(bd_t *bis);
>   int skge_initialize(bd_t *bis);
>   int smc911x_initialize(u8 dev_num, int base_addr);
>   int smc91111_initialize(u8 dev_num, int base_addr);
> +int spear_mii_initialize(u32);
>    
Please add a variable name
>   int tsi108_eth_initialize(bd_t *bis);
>   int uec_initialize(int index);
>   int uec_standard_init(bd_t *bis);
>    

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