From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:6f8:1178:4:290:27ff:fe1d:cc33]) by canuck.infradead.org with esmtps (Exim 4.72 #1 (Red Hat Linux)) id 1Q6jsw-0002T1-VE for barebox@lists.infradead.org; Mon, 04 Apr 2011 13:32:15 +0000 From: Sascha Hauer Date: Mon, 4 Apr 2011 15:31:53 +0200 Message-Id: <1301923918-28746-2-git-send-email-s.hauer@pengutronix.de> In-Reply-To: <1301923918-28746-1-git-send-email-s.hauer@pengutronix.de> References: <1301923918-28746-1-git-send-email-s.hauer@pengutronix.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: barebox-bounces@lists.infradead.org Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 1/6] usb net: Add SMSC95xx support To: barebox@lists.infradead.org Signed-off-by: Sascha Hauer --- drivers/net/usb/Kconfig | 4 + drivers/net/usb/Makefile | 1 + drivers/net/usb/smsc95xx.c | 938 ++++++++++++++++++++++++++++++++++++++++++++ drivers/net/usb/smsc95xx.h | 256 ++++++++++++ 4 files changed, 1199 insertions(+), 0 deletions(-) create mode 100644 drivers/net/usb/smsc95xx.c create mode 100644 drivers/net/usb/smsc95xx.h diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig index 6482626..b53dcc7 100644 --- a/drivers/net/usb/Kconfig +++ b/drivers/net/usb/Kconfig @@ -8,4 +8,8 @@ config NET_USB_ASIX select MIIDEV bool "Asix compatible" +config NET_USB_SMSC95XX + select MIIDEV + bool "SMSC95xx" + endif diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile index 555f8c2..564e44d 100644 --- a/drivers/net/usb/Makefile +++ b/drivers/net/usb/Makefile @@ -1,2 +1,3 @@ obj-$(CONFIG_NET_USB) += usbnet.o obj-$(CONFIG_NET_USB_ASIX) += asix.o +obj-$(CONFIG_NET_USB_SMSC95XX) += smsc95xx.o diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c new file mode 100644 index 0000000..ae137fb --- /dev/null +++ b/drivers/net/usb/smsc95xx.c @@ -0,0 +1,938 @@ +/*************************************************************************** + * + * Copyright (C) 2007-2008 SMSC + * + * 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "smsc95xx.h" + +#define SMSC_CHIPNAME "smsc95xx" +#define SMSC_DRIVER_VERSION "1.0.4" +#define HS_USB_PKT_SIZE (512) +#define FS_USB_PKT_SIZE (64) +#define DEFAULT_HS_BURST_CAP_SIZE (16 * 1024 + 5 * HS_USB_PKT_SIZE) +#define DEFAULT_FS_BURST_CAP_SIZE (6 * 1024 + 33 * FS_USB_PKT_SIZE) +#define DEFAULT_BULK_IN_DELAY (0x00002000) +#define MAX_SINGLE_PACKET_SIZE (2048) +#define LAN95XX_EEPROM_MAGIC (0x9500) +#define EEPROM_MAC_OFFSET (0x01) +#define DEFAULT_TX_CSUM_ENABLE (1) +#define DEFAULT_RX_CSUM_ENABLE (1) +#define SMSC95XX_INTERNAL_PHY_ID (1) +#define SMSC95XX_TX_OVERHEAD (8) +#define SMSC95XX_TX_OVERHEAD_CSUM (12) + +#define ETH_ALEN 6 +#define NET_IP_ALIGN 2 +#define ETH_FRAME_LEN 1514 /* Max. octets in frame sans FCS */ +#define ETH_P_8021Q 0x8100 /* 802.1Q VLAN Extended Header */ + +#define netdev_warn(x, fmt, arg...) printf(fmt, ##arg) +#ifdef DEBUG +#define netif_dbg(x, y, z, fmt, arg...) printf(fmt, ##arg) +#else +#define netif_dbg(x, y, z, fmt, arg...) do {} while(0) +#endif + +#define FLOW_CTRL_RX 0x02 + +struct smsc95xx_priv { + u32 mac_cr; + int use_tx_csum; + int use_rx_csum; +}; + +static int turbo_mode = 0; + +static int smsc95xx_read_reg(struct usbnet *dev, u32 index, u32 *data) +{ + int ret; + + ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), + USB_VENDOR_REQUEST_READ_REGISTER, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 00, index, data, 4, USB_CTRL_GET_TIMEOUT); + + if (ret < 0) + netdev_warn(dev->net, "Failed to read register index 0x%08x\n", index); + + le32_to_cpus(data); + + debug("%s: 0x%08x 0x%08x\n", __func__, index, *data); + + return ret; +} + +static int smsc95xx_write_reg(struct usbnet *dev, u32 index, u32 data) +{ + int ret; + + cpu_to_le32s(&data); + + ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), + USB_VENDOR_REQUEST_WRITE_REGISTER, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 00, index, &data, 4, USB_CTRL_SET_TIMEOUT); + + if (ret < 0) + netdev_warn(dev->net, "Failed to write register index 0x%08x\n", index); + + debug("%s: 0x%08x 0x%08x\n", __func__, index, data); + + return ret; +} + +/* Loop until the read is completed with timeout + * called with phy_mutex held */ +static int smsc95xx_phy_wait_not_busy(struct usbnet *dev) +{ + u32 val; + int timeout = 1000; + + do { + smsc95xx_read_reg(dev, MII_ADDR, &val); + if (!(val & MII_BUSY_)) + return 0; + udelay(100); + } while (--timeout); + + return -EIO; +} + +static int smsc95xx_mdio_read(struct mii_device *mdev, int phy_id, int idx) +{ + struct eth_device *eth = mdev->edev; + struct usbnet *dev = eth->priv; + u32 val, addr; + + /* confirm MII not busy */ + if (smsc95xx_phy_wait_not_busy(dev)) { + netdev_warn(dev->net, "MII is busy in smsc95xx_mdio_read\n"); + return -EIO; + } + + /* set the address, index & direction (read from PHY) */ + addr = (phy_id << 11) | (idx << 6) | MII_READ_; + smsc95xx_write_reg(dev, MII_ADDR, addr); + + if (smsc95xx_phy_wait_not_busy(dev)) { + netdev_warn(dev->net, "Timed out reading MII reg %02X\n", idx); + return -EIO; + } + + smsc95xx_read_reg(dev, MII_DATA, &val); + + return val & 0xffff; +} + +static int smsc95xx_mdio_write(struct mii_device *mdev, int phy_id, int idx, + int regval) +{ + struct eth_device *eth = mdev->edev; + struct usbnet *dev = eth->priv; + u32 val, addr; + + /* confirm MII not busy */ + if (smsc95xx_phy_wait_not_busy(dev)) { + netdev_warn(dev->net, "MII is busy in smsc95xx_mdio_write\n"); + return -EBUSY; + } + + val = regval; + smsc95xx_write_reg(dev, MII_DATA, val); + + /* set the address, index & direction (write to PHY) */ + addr = (phy_id << 11) | (idx << 6) | MII_WRITE_; + smsc95xx_write_reg(dev, MII_ADDR, addr); + + if (smsc95xx_phy_wait_not_busy(dev)) + netdev_warn(dev->net, "Timed out writing MII reg %02X\n", idx); + + return 0; +} + +static int smsc95xx_wait_eeprom(struct usbnet *dev) +{ + int timeout = 1000; + u32 val; + + do { + smsc95xx_read_reg(dev, E2P_CMD, &val); + if (!(val & E2P_CMD_BUSY_) || (val & E2P_CMD_TIMEOUT_)) + break; + udelay(100); + } while (--timeout); + + if (val & (E2P_CMD_TIMEOUT_ | E2P_CMD_BUSY_)) { + netdev_warn(dev->net, "EEPROM read operation timeout\n"); + return -EIO; + } + + return 0; +} + +static int smsc95xx_eeprom_confirm_not_busy(struct usbnet *dev) +{ + int timeout = 1000; + u32 val; + + do { + smsc95xx_read_reg(dev, E2P_CMD, &val); + + if (!(val & E2P_CMD_BUSY_)) + return 0; + udelay(100); + } while (--timeout); + + netdev_warn(dev->net, "EEPROM is busy\n"); + return -EIO; +} + +static int smsc95xx_read_eeprom(struct usbnet *dev, u32 offset, u32 length, + u8 *data) +{ + u32 val; + int i, ret; + + ret = smsc95xx_eeprom_confirm_not_busy(dev); + if (ret) + return ret; + + for (i = 0; i < length; i++) { + val = E2P_CMD_BUSY_ | E2P_CMD_READ_ | (offset & E2P_CMD_ADDR_); + smsc95xx_write_reg(dev, E2P_CMD, val); + + ret = smsc95xx_wait_eeprom(dev); + if (ret < 0) + return ret; + + smsc95xx_read_reg(dev, E2P_DATA, &val); + + data[i] = val & 0xFF; + offset++; + } + + return 0; +} + +#define GPIO_CFG_GPEN_ (0xff000000) +#define GPIO_CFG_GPO0_EN_ (0x01000000) +#define GPIO_CFG_GPTYPE (0x00ff0000) +#define GPIO_CFG_GPO0_TYPE (0x00010000) +#define GPIO_CFG_GPDIR_ (0x0000ff00) +#define GPIO_CFG_GPO0_DIR_ (0x00000100) +#define GPIO_CFG_GPDATA_ (0x000000ff) +#define GPIO_CFG_GPO0_DATA_ (0x00000001) +#define LED_GPIO_CFG_FDX_LED (0x00010000) +#define LED_GPIO_CFG_GPBUF_08_ (0x00000100) +#define LED_GPIO_CFG_GPDIR_08_ (0x00000010) +#define LED_GPIO_CFG_GPDATA_08_ (0x00000001) +#define LED_GPIO_CFG_GPCTL_LED_ (0x00000001) + +#if 0 +static int smsc95xx_enable_gpio(struct usbnet *dev, int gpio, int type) +{ + int ret = -1; + u32 val, reg; + int dir_shift, enable_shift, type_shift; + + if (gpio < 8) { + reg = GPIO_CFG; + enable_shift = 24 + gpio; + type_shift = 16 + gpio; + dir_shift = 8 + gpio; + } else { + gpio -= 8; + reg = LED_GPIO_CFG; + enable_shift = 16 + gpio * 4; + type_shift = 8 + gpio; + dir_shift = 4 + gpio; + } + + ret = smsc95xx_read_reg(dev, reg, &val); + if (ret < 0) + return ret; + + val &= ~(1 << enable_shift); + + if (type) + val &= ~(1 << type_shift); + else + val |= (1 << type_shift); + + val |= (1 << dir_shift); + + ret = smsc95xx_write_reg(dev, reg, val); + + return ret < 0 ? ret : 0; +} + +static int smsc95xx_gpio_set_value(struct usbnet *dev, int gpio, int value) +{ + int ret = -1; + u32 tmp, reg; + + if (gpio > 10) + return -EINVAL; + + smsc95xx_enable_gpio(dev, gpio, 0); + + if (gpio < 8) { + reg = GPIO_CFG; + } else { + reg = LED_GPIO_CFG; + gpio -= 8; + } + + ret = smsc95xx_read_reg(dev, reg, &tmp); + if (ret < 0) + return ret; + + if (value) + tmp |= 1 << gpio; + else + tmp &= ~(1 << gpio); + + ret = smsc95xx_write_reg(dev, reg, tmp); + + return ret < 0 ? ret : 0; +} +#endif + +static void smsc95xx_set_multicast(struct usbnet *dev) +{ + struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]); + u32 hash_hi = 0; + u32 hash_lo = 0; + + netif_dbg(dev, drv, dev->net, "receive own packets only\n"); + pdata->mac_cr &= ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_ | MAC_CR_HPFILT_); + + /* Initiate async writes, as we can't wait for completion here */ + smsc95xx_write_reg(dev, HASHH, hash_hi); + smsc95xx_write_reg(dev, HASHL, hash_lo); + smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr); +} + +/* Enable or disable Tx & Rx checksum offload engines */ +static int smsc95xx_set_csums(struct usbnet *dev) +{ + struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]); + u32 read_buf; + int ret = smsc95xx_read_reg(dev, COE_CR, &read_buf); + if (ret < 0) { + netdev_warn(dev->net, "Failed to read COE_CR: %d\n", ret); + return ret; + } + + if (pdata->use_tx_csum) + read_buf |= Tx_COE_EN_; + else + read_buf &= ~Tx_COE_EN_; + + if (pdata->use_rx_csum) + read_buf |= Rx_COE_EN_; + else + read_buf &= ~Rx_COE_EN_; + + ret = smsc95xx_write_reg(dev, COE_CR, read_buf); + if (ret < 0) { + netdev_warn(dev->net, "Failed to write COE_CR: %d\n", ret); + return ret; + } + + netif_dbg(dev, hw, dev->net, "COE_CR = 0x%08x\n", read_buf); + return 0; +} + +static int smsc95xx_set_ethaddr(struct eth_device *edev, unsigned char *adr) +{ + struct usbnet *udev = container_of(edev, struct usbnet, edev); + + u32 addr_lo = adr[0] | adr[1] << 8 | + adr[2] << 16 | adr[3] << 24; + u32 addr_hi = adr[4] | adr[5] << 8; + int ret; + + ret = smsc95xx_write_reg(udev, ADDRL, addr_lo); + if (ret < 0) { + netdev_warn(dev->net, "Failed to write ADDRL: %d\n", ret); + return ret; + } + + ret = smsc95xx_write_reg(udev, ADDRH, addr_hi); + if (ret < 0) { + netdev_warn(dev->net, "Failed to write ADDRH: %d\n", ret); + return ret; + } + + return 0; +} + +static int smsc95xx_get_ethaddr(struct eth_device *edev, unsigned char *adr) +{ + struct usbnet *udev = container_of(edev, struct usbnet, edev); + + /* try reading mac address from EEPROM */ + if (smsc95xx_read_eeprom(udev, EEPROM_MAC_OFFSET, ETH_ALEN, + adr) == 0) { + return 0; + } + + return -EINVAL; +} + +/* starts the TX path */ +static void smsc95xx_start_tx_path(struct usbnet *dev) +{ + struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]); + u32 reg_val; + + /* Enable Tx at MAC */ + pdata->mac_cr |= MAC_CR_TXEN_; + + smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr); + + /* Enable Tx at SCSRs */ + reg_val = TX_CFG_ON_; + smsc95xx_write_reg(dev, TX_CFG, reg_val); +} + +/* Starts the Receive path */ +static void smsc95xx_start_rx_path(struct usbnet *dev) +{ + struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]); + + pdata->mac_cr |= MAC_CR_RXEN_; + + smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr); +} + +static int smsc95xx_phy_initialize(struct usbnet *dev) +{ + int timeout = 0; + int phy_id = 1; /* FIXME */ + uint16_t val, bmcr; + + /* Initialize MII structure */ + dev->miidev.read = smsc95xx_mdio_read; + dev->miidev.write = smsc95xx_mdio_write; + dev->miidev.address = 1; /* FIXME: asix_get_phy_addr(dev); */ + dev->miidev.flags = 0; + dev->miidev.edev = &dev->edev; +// dev->miidev.name = dev->edev.name; + + /* reset phy and wait for reset to complete */ + smsc95xx_mdio_write(&dev->miidev, phy_id, MII_BMCR, BMCR_RESET); + + do { + udelay(10 * 1000); + bmcr = smsc95xx_mdio_read(&dev->miidev, phy_id, MII_BMCR); + timeout++; + } while ((bmcr & MII_BMCR) && (timeout < 100)); + + if (timeout >= 100) { + netdev_warn(dev->net, "timeout on PHY Reset"); + return -EIO; + } + + smsc95xx_mdio_write(&dev->miidev, phy_id, MII_ADVERTISE, + ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP | + ADVERTISE_PAUSE_ASYM); + + /* read to clear */ + val = smsc95xx_mdio_read(&dev->miidev, phy_id, PHY_INT_SRC); + + smsc95xx_mdio_write(&dev->miidev, phy_id, PHY_INT_MASK, + PHY_INT_MASK_DEFAULT_); + + netif_dbg(dev, ifup, dev->net, "phy initialised successfully\n"); + return 0; +} + +static int smsc95xx_reset(struct usbnet *dev) +{ + struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]); + u32 read_buf, write_buf, burst_cap = 0; + int ret = 0, timeout; + + netif_dbg(dev, ifup, dev->net, "entering %s\n", __func__); + + write_buf = HW_CFG_LRST_; + ret = smsc95xx_write_reg(dev, HW_CFG, write_buf); + if (ret < 0) { + netdev_warn(dev->net, "Failed to write HW_CFG_LRST_ bit in HW_CFG register, ret = %d\n", + ret); + return ret; + } + + timeout = 0; + do { + ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf); + if (ret < 0) { + netdev_warn(dev->net, "Failed to read HW_CFG: %d\n", ret); + return ret; + } + udelay(1000 * 10); + timeout++; + } while ((read_buf & HW_CFG_LRST_) && (timeout < 100)); + + if (timeout >= 100) { + netdev_warn(dev->net, "timeout waiting for completion of Lite Reset\n"); + return ret; + } + + write_buf = PM_CTL_PHY_RST_; + ret = smsc95xx_write_reg(dev, PM_CTRL, write_buf); + if (ret < 0) { + netdev_warn(dev->net, "Failed to write PM_CTRL: %d\n", ret); + return ret; + } + + timeout = 0; + do { + ret = smsc95xx_read_reg(dev, PM_CTRL, &read_buf); + if (ret < 0) { + netdev_warn(dev->net, "Failed to read PM_CTRL: %d\n", ret); + return ret; + } + udelay(1000 * 10); + timeout++; + } while ((read_buf & PM_CTL_PHY_RST_) && (timeout < 100)); + + if (timeout >= 100) { + netdev_warn(dev->net, "timeout waiting for PHY Reset\n"); + return ret; + } + + ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf); + if (ret < 0) { + netdev_warn(dev->net, "Failed to read HW_CFG: %d\n", ret); + return ret; + } + + netif_dbg(dev, ifup, dev->net, + "Read Value from HW_CFG : 0x%08x\n", read_buf); + + read_buf |= HW_CFG_BIR_; + + ret = smsc95xx_write_reg(dev, HW_CFG, read_buf); + if (ret < 0) { + netdev_warn(dev->net, "Failed to write HW_CFG_BIR_ bit in HW_CFG register, ret = %d\n", + ret); + return ret; + } + + ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf); + if (ret < 0) { + netdev_warn(dev->net, "Failed to read HW_CFG: %d\n", ret); + return ret; + } + netif_dbg(dev, ifup, dev->net, + "Read Value from HW_CFG after writing HW_CFG_BIR_: 0x%08x\n", + read_buf); + + if (!turbo_mode) { + burst_cap = 0; + dev->rx_urb_size = MAX_SINGLE_PACKET_SIZE; + } else if (0) { /* highspeed */ + burst_cap = DEFAULT_HS_BURST_CAP_SIZE / HS_USB_PKT_SIZE; + dev->rx_urb_size = DEFAULT_HS_BURST_CAP_SIZE; + } else { + burst_cap = DEFAULT_FS_BURST_CAP_SIZE / FS_USB_PKT_SIZE; + dev->rx_urb_size = DEFAULT_FS_BURST_CAP_SIZE; + } + + netif_dbg(dev, ifup, dev->net, + "rx_urb_size=%ld\n", (ulong)dev->rx_urb_size); + + ret = smsc95xx_write_reg(dev, BURST_CAP, burst_cap); + if (ret < 0) { + netdev_warn(dev->net, "Failed to write BURST_CAP: %d\n", ret); + return ret; + } + + ret = smsc95xx_read_reg(dev, BURST_CAP, &read_buf); + if (ret < 0) { + netdev_warn(dev->net, "Failed to read BURST_CAP: %d\n", ret); + return ret; + } + netif_dbg(dev, ifup, dev->net, + "Read Value from BURST_CAP after writing: 0x%08x\n", + read_buf); + + read_buf = DEFAULT_BULK_IN_DELAY; + ret = smsc95xx_write_reg(dev, BULK_IN_DLY, read_buf); + if (ret < 0) { + netdev_warn(dev->net, "ret = %d\n", ret); + return ret; + } + + ret = smsc95xx_read_reg(dev, BULK_IN_DLY, &read_buf); + if (ret < 0) { + netdev_warn(dev->net, "Failed to read BULK_IN_DLY: %d\n", ret); + return ret; + } + netif_dbg(dev, ifup, dev->net, + "Read Value from BULK_IN_DLY after writing: 0x%08x\n", + read_buf); + + ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf); + if (ret < 0) { + netdev_warn(dev->net, "Failed to read HW_CFG: %d\n", ret); + return ret; + } + netif_dbg(dev, ifup, dev->net, + "Read Value from HW_CFG: 0x%08x\n", read_buf); + + if (turbo_mode) + read_buf |= (HW_CFG_MEF_ | HW_CFG_BCE_); + + read_buf &= ~HW_CFG_RXDOFF_; + + /* set Rx data offset=2, Make IP header aligns on word boundary. */ + read_buf |= NET_IP_ALIGN << 9; + + ret = smsc95xx_write_reg(dev, HW_CFG, read_buf); + if (ret < 0) { + netdev_warn(dev->net, "Failed to write HW_CFG register, ret=%d\n", + ret); + return ret; + } + + ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf); + if (ret < 0) { + netdev_warn(dev->net, "Failed to read HW_CFG: %d\n", ret); + return ret; + } + netif_dbg(dev, ifup, dev->net, + "Read Value from HW_CFG after writing: 0x%08x\n", read_buf); + + write_buf = 0xFFFFFFFF; + ret = smsc95xx_write_reg(dev, INT_STS, write_buf); + if (ret < 0) { + netdev_warn(dev->net, "Failed to write INT_STS register, ret=%d\n", + ret); + return ret; + } + + ret = smsc95xx_read_reg(dev, ID_REV, &read_buf); + if (ret < 0) { + netdev_warn(dev->net, "Failed to read ID_REV: %d\n", ret); + return ret; + } + netif_dbg(dev, ifup, dev->net, "ID_REV = 0x%08x\n", read_buf); + + /* Configure GPIO pins as LED outputs */ + write_buf = LED_GPIO_CFG_SPD_LED | LED_GPIO_CFG_LNK_LED | + LED_GPIO_CFG_FDX_LED; + ret = smsc95xx_write_reg(dev, LED_GPIO_CFG, write_buf); + if (ret < 0) { + netdev_warn(dev->net, "Failed to write LED_GPIO_CFG register, ret=%d\n", + ret); + return ret; + } + + /* Init Tx */ + write_buf = 0; + ret = smsc95xx_write_reg(dev, FLOW, write_buf); + if (ret < 0) { + netdev_warn(dev->net, "Failed to write FLOW: %d\n", ret); + return ret; + } + + read_buf = AFC_CFG_DEFAULT; + ret = smsc95xx_write_reg(dev, AFC_CFG, read_buf); + if (ret < 0) { + netdev_warn(dev->net, "Failed to write AFC_CFG: %d\n", ret); + return ret; + } + + /* Don't need mac_cr_lock during initialisation */ + ret = smsc95xx_read_reg(dev, MAC_CR, &pdata->mac_cr); + if (ret < 0) { + netdev_warn(dev->net, "Failed to read MAC_CR: %d\n", ret); + return ret; + } + + /* Init Rx */ + /* Set Vlan */ + write_buf = (u32)ETH_P_8021Q; + ret = smsc95xx_write_reg(dev, VLAN1, write_buf); + if (ret < 0) { + netdev_warn(dev->net, "Failed to write VAN1: %d\n", ret); + return ret; + } + + ret = smsc95xx_set_csums(dev); + if (ret < 0) { + netdev_warn(dev->net, "Failed to set csum offload: %d\n", ret); + return ret; + } + + smsc95xx_set_multicast(dev); + + if (smsc95xx_phy_initialize(dev) < 0) + return -EIO; + + ret = smsc95xx_read_reg(dev, INT_EP_CTL, &read_buf); + if (ret < 0) { + netdev_warn(dev->net, "Failed to read INT_EP_CTL: %d\n", ret); + return ret; + } + + /* enable PHY interrupts */ + read_buf |= INT_EP_CTL_PHY_INT_; + + ret = smsc95xx_write_reg(dev, INT_EP_CTL, read_buf); + if (ret < 0) { + netdev_warn(dev->net, "Failed to write INT_EP_CTL: %d\n", ret); + return ret; + } + + smsc95xx_start_tx_path(dev); + smsc95xx_start_rx_path(dev); + + netif_dbg(dev, ifup, dev->net, "%s: return 0\n", __func__); + return 0; +} + +static struct usbnet *usbnet_global; + +static int smsc95xx_bind(struct usbnet *dev) +{ + struct smsc95xx_priv *pdata = NULL; + int ret; + + printf(SMSC_CHIPNAME " v" SMSC_DRIVER_VERSION "\n"); + + ret = usbnet_get_endpoints(dev); + if (ret < 0) { + netdev_warn(dev->net, "usbnet_get_endpoints failed: %d\n", ret); + return ret; + } + + dev->data[0] = (unsigned long)malloc(sizeof(struct smsc95xx_priv)); + + pdata = (struct smsc95xx_priv *)(dev->data[0]); + if (!pdata) { + netdev_warn(dev->net, "Unable to allocate struct smsc95xx_priv\n"); + return -ENOMEM; + } + + pdata->use_tx_csum = DEFAULT_TX_CSUM_ENABLE; + pdata->use_rx_csum = DEFAULT_RX_CSUM_ENABLE; + + /* Init all registers */ + ret = smsc95xx_reset(dev); + + dev->edev.get_ethaddr = smsc95xx_get_ethaddr; + dev->edev.set_ethaddr = smsc95xx_set_ethaddr; + mii_register(&dev->miidev); + + return 0; +} + +static void smsc95xx_unbind(struct usbnet *dev) +{ + struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]); + if (pdata) { + netif_dbg(dev, ifdown, dev->net, "free pdata\n"); + free(pdata); + pdata = NULL; + dev->data[0] = 0; + } + + usbnet_global = NULL; +} + +static int smsc95xx_rx_fixup(struct usbnet *dev, void *buf, int len) +{ + while (len > 0) { + u32 header, align_count; + unsigned char *packet; + u16 size; + + memcpy(&header, buf, sizeof(header)); + le32_to_cpus(&header); + buf += 4 + NET_IP_ALIGN; + len -= 4 + NET_IP_ALIGN; + packet = buf; + + /* get the packet length */ + size = (u16)((header & RX_STS_FL_) >> 16); + align_count = (4 - ((size + NET_IP_ALIGN) % 4)) % 4; + + if (header & RX_STS_ES_) { + netif_dbg(dev, rx_err, dev->net, + "Error header=0x%08x\n", header); + } else { + /* ETH_FRAME_LEN + 4(CRC) + 2(COE) + 4(Vlan) */ + if (size > (ETH_FRAME_LEN + 12)) { + netif_dbg(dev, rx_err, dev->net, + "size err header=0x%08x\n", header); + return 0; + } + + /* last frame in this batch */ + if (len == size) { + net_receive(buf, len - 4); + return 1; + } + + net_receive(packet, len - 4); + } + + len -= size; + + /* padding bytes before the next frame starts */ + if (len) + len -= align_count; + } + + if (len < 0) { + netdev_warn(dev->net, "invalid rx length<0 %d\n", len); + return 0; + } + + return 1; +} +#if 0 +static u32 smsc95xx_calc_csum_preamble(struct sk_buff *skb) +{ + int len = skb->data - skb->head; + u16 high_16 = (u16)(skb->csum_offset + skb->csum_start - len); + u16 low_16 = (u16)(skb->csum_start - len); + return (high_16 << 16) | low_16; +} +#endif +static int smsc95xx_tx_fixup(struct usbnet *dev, + void *buf, int len, + void *nbuf, int *nlen) +{ + u32 tx_cmd_a, tx_cmd_b; + + tx_cmd_a = (u32)(len) | TX_CMD_A_FIRST_SEG_ | TX_CMD_A_LAST_SEG_; + cpu_to_le32s(&tx_cmd_a); + memcpy(nbuf, &tx_cmd_a, 4); + + tx_cmd_b = (u32)(len); + cpu_to_le32s(&tx_cmd_b); + memcpy(nbuf + 4, &tx_cmd_b, 4); + + memcpy(nbuf + 8, buf, len); + + *nlen = len + 8; + + return 0; +} + +static struct driver_info smsc95xx_info = { + .description = "smsc95xx USB 2.0 Ethernet", + .bind = smsc95xx_bind, + .unbind = smsc95xx_unbind, + .rx_fixup = smsc95xx_rx_fixup, + .tx_fixup = smsc95xx_tx_fixup, +}; + +static const struct usb_device_id products[] = { + { + /* SMSC9500 USB Ethernet Device */ + USB_DEVICE(0x0424, 0x9500), + .driver_info = &smsc95xx_info, + }, { + /* SMSC9505 USB Ethernet Device */ + USB_DEVICE(0x0424, 0x9505), + .driver_info = &smsc95xx_info, + }, { + /* SMSC9500A USB Ethernet Device */ + USB_DEVICE(0x0424, 0x9E00), + .driver_info = &smsc95xx_info, + }, { + /* SMSC9505A USB Ethernet Device */ + USB_DEVICE(0x0424, 0x9E01), + .driver_info = &smsc95xx_info, + }, { + /* SMSC9512/9514 USB Hub & Ethernet Device */ + USB_DEVICE(0x0424, 0xec00), + .driver_info = &smsc95xx_info, + }, { + /* SMSC9500 USB Ethernet Device (SAL10) */ + USB_DEVICE(0x0424, 0x9900), + .driver_info = &smsc95xx_info, + }, { + /* SMSC9505 USB Ethernet Device (SAL10) */ + USB_DEVICE(0x0424, 0x9901), + .driver_info = &smsc95xx_info, + }, { + /* SMSC9500A USB Ethernet Device (SAL10) */ + USB_DEVICE(0x0424, 0x9902), + .driver_info = &smsc95xx_info, + }, { + /* SMSC9505A USB Ethernet Device (SAL10) */ + USB_DEVICE(0x0424, 0x9903), + .driver_info = &smsc95xx_info, + }, { + /* SMSC9512/9514 USB Hub & Ethernet Device (SAL10) */ + USB_DEVICE(0x0424, 0x9904), + .driver_info = &smsc95xx_info, + }, { + /* SMSC9500A USB Ethernet Device (HAL) */ + USB_DEVICE(0x0424, 0x9905), + .driver_info = &smsc95xx_info, + }, { + /* SMSC9505A USB Ethernet Device (HAL) */ + USB_DEVICE(0x0424, 0x9906), + .driver_info = &smsc95xx_info, + }, { + /* SMSC9500 USB Ethernet Device (Alternate ID) */ + USB_DEVICE(0x0424, 0x9907), + .driver_info = &smsc95xx_info, + }, { + /* SMSC9500A USB Ethernet Device (Alternate ID) */ + USB_DEVICE(0x0424, 0x9908), + .driver_info = &smsc95xx_info, + }, { + /* SMSC9512/9514 USB Hub & Ethernet Device (Alternate ID) */ + USB_DEVICE(0x0424, 0x9909), + .driver_info = &smsc95xx_info, + }, + { }, /* END */ +}; + +static struct usb_driver smsc95xx_driver = { + .name = "smsc95xx", + .id_table = products, + .probe = usbnet_probe, + .disconnect = usbnet_disconnect, +}; + +static int __init smsc95xx_init(void) +{ + return usb_driver_register(&smsc95xx_driver); +} +device_initcall(smsc95xx_init); diff --git a/drivers/net/usb/smsc95xx.h b/drivers/net/usb/smsc95xx.h new file mode 100644 index 0000000..86bc449 --- /dev/null +++ b/drivers/net/usb/smsc95xx.h @@ -0,0 +1,256 @@ + /*************************************************************************** + * + * Copyright (C) 2007-2008 SMSC + * + * 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 _SMSC95XX_H +#define _SMSC95XX_H + +/* Tx command words */ +#define TX_CMD_A_DATA_OFFSET_ (0x001F0000) +#define TX_CMD_A_FIRST_SEG_ (0x00002000) +#define TX_CMD_A_LAST_SEG_ (0x00001000) +#define TX_CMD_A_BUF_SIZE_ (0x000007FF) + +#define TX_CMD_B_CSUM_ENABLE (0x00004000) +#define TX_CMD_B_ADD_CRC_DISABLE_ (0x00002000) +#define TX_CMD_B_DISABLE_PADDING_ (0x00001000) +#define TX_CMD_B_PKT_BYTE_LENGTH_ (0x000007FF) + +/* Rx status word */ +#define RX_STS_FF_ (0x40000000) /* Filter Fail */ +#define RX_STS_FL_ (0x3FFF0000) /* Frame Length */ +#define RX_STS_ES_ (0x00008000) /* Error Summary */ +#define RX_STS_BF_ (0x00002000) /* Broadcast Frame */ +#define RX_STS_LE_ (0x00001000) /* Length Error */ +#define RX_STS_RF_ (0x00000800) /* Runt Frame */ +#define RX_STS_MF_ (0x00000400) /* Multicast Frame */ +#define RX_STS_TL_ (0x00000080) /* Frame too long */ +#define RX_STS_CS_ (0x00000040) /* Collision Seen */ +#define RX_STS_FT_ (0x00000020) /* Frame Type */ +#define RX_STS_RW_ (0x00000010) /* Receive Watchdog */ +#define RX_STS_ME_ (0x00000008) /* Mii Error */ +#define RX_STS_DB_ (0x00000004) /* Dribbling */ +#define RX_STS_CRC_ (0x00000002) /* CRC Error */ + +/* SCSRs */ +#define ID_REV (0x00) +#define ID_REV_CHIP_ID_MASK_ (0xFFFF0000) +#define ID_REV_CHIP_REV_MASK_ (0x0000FFFF) +#define ID_REV_CHIP_ID_9500_ (0x9500) + +#define INT_STS (0x08) +#define INT_STS_TX_STOP_ (0x00020000) +#define INT_STS_RX_STOP_ (0x00010000) +#define INT_STS_PHY_INT_ (0x00008000) +#define INT_STS_TXE_ (0x00004000) +#define INT_STS_TDFU_ (0x00002000) +#define INT_STS_TDFO_ (0x00001000) +#define INT_STS_RXDF_ (0x00000800) +#define INT_STS_GPIOS_ (0x000007FF) + +#define RX_CFG (0x0C) +#define RX_FIFO_FLUSH_ (0x00000001) + +#define TX_CFG (0x10) +#define TX_CFG_ON_ (0x00000004) +#define TX_CFG_STOP_ (0x00000002) +#define TX_CFG_FIFO_FLUSH_ (0x00000001) + +#define HW_CFG (0x14) +#define HW_CFG_BIR_ (0x00001000) +#define HW_CFG_LEDB_ (0x00000800) +#define HW_CFG_RXDOFF_ (0x00000600) +#define HW_CFG_DRP_ (0x00000040) +#define HW_CFG_MEF_ (0x00000020) +#define HW_CFG_LRST_ (0x00000008) +#define HW_CFG_PSEL_ (0x00000004) +#define HW_CFG_BCE_ (0x00000002) +#define HW_CFG_SRST_ (0x00000001) + +#define PM_CTRL (0x20) +#define PM_CTL_DEV_RDY_ (0x00000080) +#define PM_CTL_SUS_MODE_ (0x00000060) +#define PM_CTL_SUS_MODE_0 (0x00000000) +#define PM_CTL_SUS_MODE_1 (0x00000020) +#define PM_CTL_SUS_MODE_2 (0x00000060) +#define PM_CTL_PHY_RST_ (0x00000010) +#define PM_CTL_WOL_EN_ (0x00000008) +#define PM_CTL_ED_EN_ (0x00000004) +#define PM_CTL_WUPS_ (0x00000003) +#define PM_CTL_WUPS_NO_ (0x00000000) +#define PM_CTL_WUPS_ED_ (0x00000001) +#define PM_CTL_WUPS_WOL_ (0x00000002) +#define PM_CTL_WUPS_MULTI_ (0x00000003) + +#define LED_GPIO_CFG (0x24) +#define LED_GPIO_CFG_SPD_LED (0x01000000) +#define LED_GPIO_CFG_LNK_LED (0x00100000) +#define LED_GPIO_CFG_FDX_LED (0x00010000) + +#define GPIO_CFG (0x28) + +#define AFC_CFG (0x2C) + +/* Hi watermark = 15.5Kb (~10 mtu pkts) */ +/* low watermark = 3k (~2 mtu pkts) */ +/* backpressure duration = ~ 350us */ +/* Apply FC on any frame. */ +#define AFC_CFG_DEFAULT (0x00F830A1) + +#define E2P_CMD (0x30) +#define E2P_CMD_BUSY_ (0x80000000) +#define E2P_CMD_MASK_ (0x70000000) +#define E2P_CMD_READ_ (0x00000000) +#define E2P_CMD_EWDS_ (0x10000000) +#define E2P_CMD_EWEN_ (0x20000000) +#define E2P_CMD_WRITE_ (0x30000000) +#define E2P_CMD_WRAL_ (0x40000000) +#define E2P_CMD_ERASE_ (0x50000000) +#define E2P_CMD_ERAL_ (0x60000000) +#define E2P_CMD_RELOAD_ (0x70000000) +#define E2P_CMD_TIMEOUT_ (0x00000400) +#define E2P_CMD_LOADED_ (0x00000200) +#define E2P_CMD_ADDR_ (0x000001FF) + +#define MAX_EEPROM_SIZE (512) + +#define E2P_DATA (0x34) +#define E2P_DATA_MASK_ (0x000000FF) + +#define BURST_CAP (0x38) + +#define GPIO_WAKE (0x64) + +#define INT_EP_CTL (0x68) +#define INT_EP_CTL_INTEP_ (0x80000000) +#define INT_EP_CTL_MACRTO_ (0x00080000) +#define INT_EP_CTL_TX_STOP_ (0x00020000) +#define INT_EP_CTL_RX_STOP_ (0x00010000) +#define INT_EP_CTL_PHY_INT_ (0x00008000) +#define INT_EP_CTL_TXE_ (0x00004000) +#define INT_EP_CTL_TDFU_ (0x00002000) +#define INT_EP_CTL_TDFO_ (0x00001000) +#define INT_EP_CTL_RXDF_ (0x00000800) +#define INT_EP_CTL_GPIOS_ (0x000007FF) + +#define BULK_IN_DLY (0x6C) + +/* MAC CSRs */ +#define MAC_CR (0x100) +#define MAC_CR_RXALL_ (0x80000000) +#define MAC_CR_RCVOWN_ (0x00800000) +#define MAC_CR_LOOPBK_ (0x00200000) +#define MAC_CR_FDPX_ (0x00100000) +#define MAC_CR_MCPAS_ (0x00080000) +#define MAC_CR_PRMS_ (0x00040000) +#define MAC_CR_INVFILT_ (0x00020000) +#define MAC_CR_PASSBAD_ (0x00010000) +#define MAC_CR_HFILT_ (0x00008000) +#define MAC_CR_HPFILT_ (0x00002000) +#define MAC_CR_LCOLL_ (0x00001000) +#define MAC_CR_BCAST_ (0x00000800) +#define MAC_CR_DISRTY_ (0x00000400) +#define MAC_CR_PADSTR_ (0x00000100) +#define MAC_CR_BOLMT_MASK (0x000000C0) +#define MAC_CR_DFCHK_ (0x00000020) +#define MAC_CR_TXEN_ (0x00000008) +#define MAC_CR_RXEN_ (0x00000004) + +#define ADDRH (0x104) + +#define ADDRL (0x108) + +#define HASHH (0x10C) + +#define HASHL (0x110) + +#define MII_ADDR (0x114) +#define MII_WRITE_ (0x02) +#define MII_BUSY_ (0x01) +#define MII_READ_ (0x00) /* ~of MII Write bit */ + +#define MII_DATA (0x118) + +#define FLOW (0x11C) +#define FLOW_FCPT_ (0xFFFF0000) +#define FLOW_FCPASS_ (0x00000004) +#define FLOW_FCEN_ (0x00000002) +#define FLOW_FCBSY_ (0x00000001) + +#define VLAN1 (0x120) + +#define VLAN2 (0x124) + +#define WUFF (0x128) + +#define WUCSR (0x12C) + +#define COE_CR (0x130) +#define Tx_COE_EN_ (0x00010000) +#define Rx_COE_MODE_ (0x00000002) +#define Rx_COE_EN_ (0x00000001) + +/* Vendor-specific PHY Definitions */ + +/* Mode Control/Status Register */ +#define PHY_MODE_CTRL_STS (17) +#define MODE_CTRL_STS_EDPWRDOWN_ ((u16)0x2000) +#define MODE_CTRL_STS_ENERGYON_ ((u16)0x0002) + +#define SPECIAL_CTRL_STS (27) +#define SPECIAL_CTRL_STS_OVRRD_AMDIX_ ((u16)0x8000) +#define SPECIAL_CTRL_STS_AMDIX_ENABLE_ ((u16)0x4000) +#define SPECIAL_CTRL_STS_AMDIX_STATE_ ((u16)0x2000) + +#define PHY_INT_SRC (29) +#define PHY_INT_SRC_ENERGY_ON_ ((u16)0x0080) +#define PHY_INT_SRC_ANEG_COMP_ ((u16)0x0040) +#define PHY_INT_SRC_REMOTE_FAULT_ ((u16)0x0020) +#define PHY_INT_SRC_LINK_DOWN_ ((u16)0x0010) + +#define PHY_INT_MASK (30) +#define PHY_INT_MASK_ENERGY_ON_ ((u16)0x0080) +#define PHY_INT_MASK_ANEG_COMP_ ((u16)0x0040) +#define PHY_INT_MASK_REMOTE_FAULT_ ((u16)0x0020) +#define PHY_INT_MASK_LINK_DOWN_ ((u16)0x0010) +#define PHY_INT_MASK_DEFAULT_ (PHY_INT_MASK_ANEG_COMP_ | \ + PHY_INT_MASK_LINK_DOWN_) + +#define PHY_SPECIAL (31) +#define PHY_SPECIAL_SPD_ ((u16)0x001C) +#define PHY_SPECIAL_SPD_10HALF_ ((u16)0x0004) +#define PHY_SPECIAL_SPD_10FULL_ ((u16)0x0014) +#define PHY_SPECIAL_SPD_100HALF_ ((u16)0x0008) +#define PHY_SPECIAL_SPD_100FULL_ ((u16)0x0018) + +/* USB Vendor Requests */ +#define USB_VENDOR_REQUEST_WRITE_REGISTER 0xA0 +#define USB_VENDOR_REQUEST_READ_REGISTER 0xA1 +#define USB_VENDOR_REQUEST_GET_STATS 0xA2 + +/* Interrupt Endpoint status word bitfields */ +#define INT_ENP_TX_STOP_ ((u32)BIT(17)) +#define INT_ENP_RX_STOP_ ((u32)BIT(16)) +#define INT_ENP_PHY_INT_ ((u32)BIT(15)) +#define INT_ENP_TXE_ ((u32)BIT(14)) +#define INT_ENP_TDFU_ ((u32)BIT(13)) +#define INT_ENP_TDFO_ ((u32)BIT(12)) +#define INT_ENP_RXDF_ ((u32)BIT(11)) + +#endif /* _SMSC95XX_H */ -- 1.7.2.3 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox