Introduce a private data structure for this driver with embedded struct eth_device and pass it around. This prepares the driver to work with both DM and non-DM systems.
Signed-off-by: Marek Vasut marek.vasut+renesas@gmail.com Cc: Joe Hershberger joe.hershberger@ni.com Cc: Masahiro Yamada yamada.masahiro@socionext.com --- V2: No change --- drivers/net/smc911x.c | 230 ++++++++++++++++++++++-------------------- 1 file changed, 123 insertions(+), 107 deletions(-)
diff --git a/drivers/net/smc911x.c b/drivers/net/smc911x.c index d672f02782..e93011f2db 100644 --- a/drivers/net/smc911x.c +++ b/drivers/net/smc911x.c @@ -20,6 +20,13 @@ struct chip_id { char *name; };
+struct smc911x_priv { + struct eth_device dev; + phys_addr_t iobase; + const struct chip_id *chipid; + unsigned char enetaddr[6]; +}; + static const struct chip_id chip_ids[] = { { CHIP_89218, "LAN89218" }, { CHIP_9115, "LAN9115" }, @@ -45,57 +52,57 @@ static const struct chip_id chip_ids[] = { #endif
#if defined (CONFIG_SMC911X_32_BIT) -static u32 smc911x_reg_read(struct eth_device *dev, u32 offset) +static u32 smc911x_reg_read(struct smc911x_priv *priv, u32 offset) { - return readl(dev->iobase + offset); + return readl(priv->iobase + offset); }
-static void smc911x_reg_write(struct eth_device *dev, u32 offset, u32 val) +static void smc911x_reg_write(struct smc911x_priv *priv, u32 offset, u32 val) { - writel(val, dev->iobase + offset); + writel(val, priv->iobase + offset); } #elif defined (CONFIG_SMC911X_16_BIT) -static u32 smc911x_reg_read(struct eth_device *dev, u32 offset) +static u32 smc911x_reg_read(struct smc911x_priv *priv, u32 offset) { - return (readw(dev->iobase + offset) & 0xffff) | - (readw(dev->iobase + offset + 2) << 16); + return (readw(priv->iobase + offset) & 0xffff) | + (readw(priv->iobase + offset + 2) << 16); } -static void smc911x_reg_write(struct eth_device *dev, u32 offset, u32 val) +static void smc911x_reg_write(struct smc911x_priv *priv, u32 offset, u32 val) { - writew(val & 0xffff, dev->iobase + offset); - writew(val >> 16, dev->iobase + offset + 2); + writew(val & 0xffff, priv->iobase + offset); + writew(val >> 16, priv->iobase + offset + 2); } #else #error "SMC911X: undefined bus width" #endif /* CONFIG_SMC911X_16_BIT */
-static u32 smc911x_get_mac_csr(struct eth_device *dev, u8 reg) +static u32 smc911x_get_mac_csr(struct smc911x_priv *priv, u8 reg) { - while (smc911x_reg_read(dev, MAC_CSR_CMD) & MAC_CSR_CMD_CSR_BUSY) + while (smc911x_reg_read(priv, MAC_CSR_CMD) & MAC_CSR_CMD_CSR_BUSY) ; - smc911x_reg_write(dev, MAC_CSR_CMD, + smc911x_reg_write(priv, MAC_CSR_CMD, MAC_CSR_CMD_CSR_BUSY | MAC_CSR_CMD_R_NOT_W | reg); - while (smc911x_reg_read(dev, MAC_CSR_CMD) & MAC_CSR_CMD_CSR_BUSY) + while (smc911x_reg_read(priv, MAC_CSR_CMD) & MAC_CSR_CMD_CSR_BUSY) ;
- return smc911x_reg_read(dev, MAC_CSR_DATA); + return smc911x_reg_read(priv, MAC_CSR_DATA); }
-static void smc911x_set_mac_csr(struct eth_device *dev, u8 reg, u32 data) +static void smc911x_set_mac_csr(struct smc911x_priv *priv, u8 reg, u32 data) { - while (smc911x_reg_read(dev, MAC_CSR_CMD) & MAC_CSR_CMD_CSR_BUSY) + while (smc911x_reg_read(priv, MAC_CSR_CMD) & MAC_CSR_CMD_CSR_BUSY) ; - smc911x_reg_write(dev, MAC_CSR_DATA, data); - smc911x_reg_write(dev, MAC_CSR_CMD, MAC_CSR_CMD_CSR_BUSY | reg); - while (smc911x_reg_read(dev, MAC_CSR_CMD) & MAC_CSR_CMD_CSR_BUSY) + smc911x_reg_write(priv, MAC_CSR_DATA, data); + smc911x_reg_write(priv, MAC_CSR_CMD, MAC_CSR_CMD_CSR_BUSY | reg); + while (smc911x_reg_read(priv, MAC_CSR_CMD) & MAC_CSR_CMD_CSR_BUSY) ; }
-static int smc911x_detect_chip(struct eth_device *dev) +static int smc911x_detect_chip(struct smc911x_priv *priv) { unsigned long val, i;
- val = smc911x_reg_read(dev, BYTE_TEST); + val = smc911x_reg_read(priv, BYTE_TEST); if (val == 0xffffffff) { /* Special case -- no chip present */ return -1; @@ -104,7 +111,7 @@ static int smc911x_detect_chip(struct eth_device *dev) return -1; }
- val = smc911x_reg_read(dev, ID_REV) >> 16; + val = smc911x_reg_read(priv, ID_REV) >> 16; for (i = 0; chip_ids[i].id != 0; i++) { if (chip_ids[i].id == val) break; } @@ -113,12 +120,12 @@ static int smc911x_detect_chip(struct eth_device *dev) return -1; }
- dev->priv = (void *)&chip_ids[i]; + priv->chipid = &chip_ids[i];
return 0; }
-static void smc911x_reset(struct eth_device *dev) +static void smc911x_reset(struct smc911x_priv *priv) { int timeout;
@@ -126,14 +133,14 @@ static void smc911x_reset(struct eth_device *dev) * Take out of PM setting first * Device is already wake up if PMT_CTRL_READY bit is set */ - if ((smc911x_reg_read(dev, PMT_CTRL) & PMT_CTRL_READY) == 0) { + if ((smc911x_reg_read(priv, PMT_CTRL) & PMT_CTRL_READY) == 0) { /* Write to the bytetest will take out of powerdown */ - smc911x_reg_write(dev, BYTE_TEST, 0x0); + smc911x_reg_write(priv, BYTE_TEST, 0x0);
timeout = 10;
while (timeout-- && - !(smc911x_reg_read(dev, PMT_CTRL) & PMT_CTRL_READY)) + !(smc911x_reg_read(priv, PMT_CTRL) & PMT_CTRL_READY)) udelay(10); if (timeout < 0) { printf(DRIVERNAME @@ -143,12 +150,12 @@ static void smc911x_reset(struct eth_device *dev) }
/* Disable interrupts */ - smc911x_reg_write(dev, INT_EN, 0); + smc911x_reg_write(priv, INT_EN, 0);
- smc911x_reg_write(dev, HW_CFG, HW_CFG_SRST); + smc911x_reg_write(priv, HW_CFG, HW_CFG_SRST);
timeout = 1000; - while (timeout-- && smc911x_reg_read(dev, E2P_CMD) & E2P_CMD_EPC_BUSY) + while (timeout-- && smc911x_reg_read(priv, E2P_CMD) & E2P_CMD_EPC_BUSY) udelay(10);
if (timeout < 0) { @@ -157,83 +164,83 @@ static void smc911x_reset(struct eth_device *dev) }
/* Reset the FIFO level and flow control settings */ - smc911x_set_mac_csr(dev, FLOW, FLOW_FCPT | FLOW_FCEN); - smc911x_reg_write(dev, AFC_CFG, 0x0050287F); + smc911x_set_mac_csr(priv, FLOW, FLOW_FCPT | FLOW_FCEN); + smc911x_reg_write(priv, AFC_CFG, 0x0050287F);
/* Set to LED outputs */ - smc911x_reg_write(dev, GPIO_CFG, 0x70070000); + smc911x_reg_write(priv, GPIO_CFG, 0x70070000); }
-static void smc911x_handle_mac_address(struct eth_device *dev) +static void smc911x_handle_mac_address(struct smc911x_priv *priv) { unsigned long addrh, addrl; - uchar *m = dev->enetaddr; + unsigned char *m = priv->enetaddr;
addrl = m[0] | (m[1] << 8) | (m[2] << 16) | (m[3] << 24); addrh = m[4] | (m[5] << 8); - smc911x_set_mac_csr(dev, ADDRL, addrl); - smc911x_set_mac_csr(dev, ADDRH, addrh); + smc911x_set_mac_csr(priv, ADDRL, addrl); + smc911x_set_mac_csr(priv, ADDRH, addrh);
printf(DRIVERNAME ": MAC %pM\n", m); }
-static int smc911x_eth_phy_read(struct eth_device *dev, +static int smc911x_eth_phy_read(struct smc911x_priv *priv, u8 phy, u8 reg, u16 *val) { - while (smc911x_get_mac_csr(dev, MII_ACC) & MII_ACC_MII_BUSY) + while (smc911x_get_mac_csr(priv, MII_ACC) & MII_ACC_MII_BUSY) ;
- smc911x_set_mac_csr(dev, MII_ACC, phy << 11 | reg << 6 | + smc911x_set_mac_csr(priv, MII_ACC, phy << 11 | reg << 6 | MII_ACC_MII_BUSY);
- while (smc911x_get_mac_csr(dev, MII_ACC) & MII_ACC_MII_BUSY) + while (smc911x_get_mac_csr(priv, MII_ACC) & MII_ACC_MII_BUSY) ;
- *val = smc911x_get_mac_csr(dev, MII_DATA); + *val = smc911x_get_mac_csr(priv, MII_DATA);
return 0; }
-static int smc911x_eth_phy_write(struct eth_device *dev, +static int smc911x_eth_phy_write(struct smc911x_priv *priv, u8 phy, u8 reg, u16 val) { - while (smc911x_get_mac_csr(dev, MII_ACC) & MII_ACC_MII_BUSY) + while (smc911x_get_mac_csr(priv, MII_ACC) & MII_ACC_MII_BUSY) ;
- smc911x_set_mac_csr(dev, MII_DATA, val); - smc911x_set_mac_csr(dev, MII_ACC, + smc911x_set_mac_csr(priv, MII_DATA, val); + smc911x_set_mac_csr(priv, MII_ACC, phy << 11 | reg << 6 | MII_ACC_MII_BUSY | MII_ACC_MII_WRITE);
- while (smc911x_get_mac_csr(dev, MII_ACC) & MII_ACC_MII_BUSY) + while (smc911x_get_mac_csr(priv, MII_ACC) & MII_ACC_MII_BUSY) ; return 0; }
-static int smc911x_phy_reset(struct eth_device *dev) +static int smc911x_phy_reset(struct smc911x_priv *priv) { u32 reg;
- reg = smc911x_reg_read(dev, PMT_CTRL); + reg = smc911x_reg_read(priv, PMT_CTRL); reg &= ~0xfffff030; reg |= PMT_CTRL_PHY_RST; - smc911x_reg_write(dev, PMT_CTRL, reg); + smc911x_reg_write(priv, PMT_CTRL, reg);
mdelay(100);
return 0; }
-static void smc911x_phy_configure(struct eth_device *dev) +static void smc911x_phy_configure(struct smc911x_priv *priv) { int timeout; u16 status;
- smc911x_phy_reset(dev); + smc911x_phy_reset(priv);
- smc911x_eth_phy_write(dev, 1, MII_BMCR, BMCR_RESET); + smc911x_eth_phy_write(priv, 1, MII_BMCR, BMCR_RESET); mdelay(1); - smc911x_eth_phy_write(dev, 1, MII_ADVERTISE, 0x01e1); - smc911x_eth_phy_write(dev, 1, MII_BMCR, BMCR_ANENABLE | + smc911x_eth_phy_write(priv, 1, MII_ADVERTISE, 0x01e1); + smc911x_eth_phy_write(priv, 1, MII_BMCR, BMCR_ANENABLE | BMCR_ANRESTART);
timeout = 5000; @@ -242,7 +249,7 @@ static void smc911x_phy_configure(struct eth_device *dev) if ((timeout--) == 0) goto err_out;
- if (smc911x_eth_phy_read(dev, 1, MII_BMSR, &status) != 0) + if (smc911x_eth_phy_read(priv, 1, MII_BMSR, &status) != 0) goto err_out; } while (!(status & BMSR_LSTATUS));
@@ -254,64 +261,66 @@ err_out: printf(DRIVERNAME ": autonegotiation timed out\n"); }
-static void smc911x_enable(struct eth_device *dev) +static void smc911x_enable(struct smc911x_priv *priv) { /* Enable TX */ - smc911x_reg_write(dev, HW_CFG, 8 << 16 | HW_CFG_SF); + smc911x_reg_write(priv, HW_CFG, 8 << 16 | HW_CFG_SF);
- smc911x_reg_write(dev, GPT_CFG, GPT_CFG_TIMER_EN | 10000); + smc911x_reg_write(priv, GPT_CFG, GPT_CFG_TIMER_EN | 10000);
- smc911x_reg_write(dev, TX_CFG, TX_CFG_TX_ON); + smc911x_reg_write(priv, TX_CFG, TX_CFG_TX_ON);
/* no padding to start of packets */ - smc911x_reg_write(dev, RX_CFG, 0); + smc911x_reg_write(priv, RX_CFG, 0);
- smc911x_set_mac_csr(dev, MAC_CR, MAC_CR_TXEN | MAC_CR_RXEN | + smc911x_set_mac_csr(priv, MAC_CR, MAC_CR_TXEN | MAC_CR_RXEN | MAC_CR_HBDIS); }
static int smc911x_init(struct eth_device *dev, bd_t * bd) { - struct chip_id *id = dev->priv; + struct smc911x_priv *priv = container_of(dev, struct smc911x_priv, dev); + const struct chip_id *id = priv->chipid;
printf(DRIVERNAME ": detected %s controller\n", id->name);
- smc911x_reset(dev); + smc911x_reset(priv);
/* Configure the PHY, initialize the link state */ - smc911x_phy_configure(dev); + smc911x_phy_configure(priv);
- smc911x_handle_mac_address(dev); + smc911x_handle_mac_address(priv);
/* Turn on Tx + Rx */ - smc911x_enable(dev); + smc911x_enable(priv);
return 0; }
static int smc911x_send(struct eth_device *dev, void *packet, int length) { + struct smc911x_priv *priv = container_of(dev, struct smc911x_priv, dev); u32 *data = (u32*)packet; u32 tmplen; u32 status;
- smc911x_reg_write(dev, TX_DATA_FIFO, TX_CMD_A_INT_FIRST_SEG | + smc911x_reg_write(priv, TX_DATA_FIFO, TX_CMD_A_INT_FIRST_SEG | TX_CMD_A_INT_LAST_SEG | length); - smc911x_reg_write(dev, TX_DATA_FIFO, length); + smc911x_reg_write(priv, TX_DATA_FIFO, length);
tmplen = (length + 3) / 4;
while (tmplen--) - smc911x_reg_write(dev, TX_DATA_FIFO, *data++); + smc911x_reg_write(priv, TX_DATA_FIFO, *data++);
/* wait for transmission */ - while (!((smc911x_reg_read(dev, TX_FIFO_INF) & + while (!((smc911x_reg_read(priv, TX_FIFO_INF) & TX_FIFO_INF_TSUSED) >> 16));
/* get status. Ignore 'no carrier' error, it has no meaning for * full duplex operation */ - status = smc911x_reg_read(dev, TX_STATUS_FIFO) & + status = smc911x_reg_read(priv, TX_STATUS_FIFO) & (TX_STS_LOC | TX_STS_LATE_COLL | TX_STS_MANY_COLL | TX_STS_MANY_DEFER | TX_STS_UNDERRUN);
@@ -330,25 +339,28 @@ static int smc911x_send(struct eth_device *dev, void *packet, int length)
static void smc911x_halt(struct eth_device *dev) { - smc911x_reset(dev); - smc911x_handle_mac_address(dev); + struct smc911x_priv *priv = container_of(dev, struct smc911x_priv, dev); + + smc911x_reset(priv); + smc911x_handle_mac_address(priv); }
static int smc911x_recv(struct eth_device *dev) { + struct smc911x_priv *priv = container_of(dev, struct smc911x_priv, dev); u32 *data = (u32 *)net_rx_packets[0]; u32 pktlen, tmplen; u32 status;
- if ((smc911x_reg_read(dev, RX_FIFO_INF) & RX_FIFO_INF_RXSUSED) >> 16) { - status = smc911x_reg_read(dev, RX_STATUS_FIFO); + if ((smc911x_reg_read(priv, RX_FIFO_INF) & RX_FIFO_INF_RXSUSED) >> 16) { + status = smc911x_reg_read(priv, RX_STATUS_FIFO); pktlen = (status & RX_STS_PKT_LEN) >> 16;
- smc911x_reg_write(dev, RX_CFG, 0); + smc911x_reg_write(priv, RX_CFG, 0);
tmplen = (pktlen + 3) / 4; while (tmplen--) - *data++ = smc911x_reg_read(dev, RX_DATA_FIFO); + *data++ = smc911x_reg_read(priv, RX_DATA_FIFO);
if (status & RX_STS_ES) printf(DRIVERNAME @@ -367,31 +379,34 @@ static int smc911x_miiphy_read(struct mii_dev *bus, int phy, int devad, int reg) { struct eth_device *dev = eth_get_dev_by_name(bus->name); + struct smc911x_priv *priv = container_of(dev, struct smc911x_priv, dev); u16 val = 0; int ret;
- if (!dev) + if (!dev || !priv) return -ENODEV;
- ret = smc911x_eth_phy_read(dev, phy, reg, &val); + ret = smc911x_eth_phy_read(priv, phy, reg, &val); if (ret < 0) return ret;
return val; } + /* wrapper for smc911x_eth_phy_write */ static int smc911x_miiphy_write(struct mii_dev *bus, int phy, int devad, int reg, u16 val) { struct eth_device *dev = eth_get_dev_by_name(bus->name); + struct smc911x_priv *priv = container_of(dev, struct smc911x_priv, dev);
- if (!dev) + if (!dev || !priv) return -ENODEV;
- return smc911x_eth_phy_write(dev, phy, reg, val); + return smc911x_eth_phy_write(priv, phy, reg, val); }
-static int smc911x_initialize_mii(struct eth_device *dev) +static int smc911x_initialize_mii(struct smc911x_priv *priv) { struct mii_dev *mdiodev = mdio_alloc(); int ret; @@ -399,7 +414,7 @@ static int smc911x_initialize_mii(struct eth_device *dev) if (!mdiodev) return -ENOMEM;
- strncpy(mdiodev->name, dev->name, MDIO_NAME_LEN); + strncpy(mdiodev->name, priv->dev.name, MDIO_NAME_LEN); mdiodev->read = smc911x_miiphy_read; mdiodev->write = smc911x_miiphy_write;
@@ -412,7 +427,7 @@ static int smc911x_initialize_mii(struct eth_device *dev) return 0; } #else -static int smc911x_initialize_mii(struct eth_device *dev) +static int smc911x_initialize_mii(struct smc911x_priv *priv) { return 0; } @@ -421,51 +436,52 @@ static int smc911x_initialize_mii(struct eth_device *dev) int smc911x_initialize(u8 dev_num, int base_addr) { unsigned long addrl, addrh; - struct eth_device *dev; + struct smc911x_priv *priv; int ret;
- dev = kzalloc(sizeof(*dev), GFP_KERNEL); + dev = kzalloc(sizeof(*priv), GFP_KERNEL); if (!dev) return -ENOMEM;
- dev->iobase = base_addr; + priv->iobase = base_addr; + priv->dev.iobase = base_addr;
/* Try to detect chip. Will fail if not present. */ - ret = smc911x_detect_chip(dev); + ret = smc911x_detect_chip(priv); if (ret) { ret = 0; /* Card not detected is not an error */ goto err_detect; }
- addrh = smc911x_get_mac_csr(dev, ADDRH); - addrl = smc911x_get_mac_csr(dev, ADDRL); + addrh = smc911x_get_mac_csr(priv, ADDRH); + addrl = smc911x_get_mac_csr(priv, ADDRL); if (!(addrl == 0xffffffff && addrh == 0x0000ffff)) { /* address is obtained from optional eeprom */ - dev->enetaddr[0] = addrl; - dev->enetaddr[1] = addrl >> 8; - dev->enetaddr[2] = addrl >> 16; - dev->enetaddr[3] = addrl >> 24; - dev->enetaddr[4] = addrh; - dev->enetaddr[5] = addrh >> 8; + priv->enetaddr[0] = addrl; + priv->enetaddr[1] = addrl >> 8; + priv->enetaddr[2] = addrl >> 16; + priv->enetaddr[3] = addrl >> 24; + priv->enetaddr[4] = addrh; + priv->enetaddr[5] = addrh >> 8; }
- dev->init = smc911x_init; - dev->halt = smc911x_halt; - dev->send = smc911x_send; - dev->recv = smc911x_recv; - sprintf(dev->name, "%s-%hu", DRIVERNAME, dev_num); + priv->dev.init = smc911x_init; + priv->dev.halt = smc911x_halt; + priv->dev.send = smc911x_send; + priv->dev.recv = smc911x_recv; + sprintf(priv->dev.name, "%s-%hu", DRIVERNAME, dev_num);
- eth_register(dev); + eth_register(&priv->dev);
- ret = smc911x_initialize_mii(dev); + ret = smc911x_initialize_mii(priv); if (ret) goto err_mii;
return 1;
err_mii: - eth_unregister(dev); + eth_unregister(&priv->dev); err_detect: - free(dev); + free(priv); return ret; }