diff options
Diffstat (limited to 'drivers/net/smc911x.c')
| -rw-r--r-- | drivers/net/smc911x.c | 177 |
1 files changed, 97 insertions, 80 deletions
diff --git a/drivers/net/smc911x.c b/drivers/net/smc911x.c index 8c9a2a8a05..18a729cfbc 100644 --- a/drivers/net/smc911x.c +++ b/drivers/net/smc911x.c @@ -24,110 +24,90 @@ #include <common.h> #include <command.h> +#include <malloc.h> #include <net.h> #include <miiphy.h> #include "smc911x.h" -u32 pkt_data_pull(u32 addr) \ +u32 pkt_data_pull(struct eth_device *dev, u32 addr) \ __attribute__ ((weak, alias ("smc911x_reg_read"))); -void pkt_data_push(u32 addr, u32 val) \ +void pkt_data_push(struct eth_device *dev, u32 addr, u32 val) \ __attribute__ ((weak, alias ("smc911x_reg_write"))); #define mdelay(n) udelay((n)*1000) -static int smx911x_handle_mac_address(bd_t *bd) +static void smx911x_handle_mac_address(struct eth_device *dev) { unsigned long addrh, addrl; - uchar m[6]; - - if (eth_getenv_enetaddr("ethaddr", m)) { - /* if the environment has a valid mac address then use it */ - addrl = m[0] | (m[1] << 8) | (m[2] << 16) | (m[3] << 24); - addrh = m[4] | (m[5] << 8); - smc911x_set_mac_csr(ADDRL, addrl); - smc911x_set_mac_csr(ADDRH, addrh); - } else { - /* if not, try to get one from the eeprom */ - addrh = smc911x_get_mac_csr(ADDRH); - addrl = smc911x_get_mac_csr(ADDRL); - - m[0] = (addrl ) & 0xff; - m[1] = (addrl >> 8 ) & 0xff; - m[2] = (addrl >> 16 ) & 0xff; - m[3] = (addrl >> 24 ) & 0xff; - m[4] = (addrh ) & 0xff; - m[5] = (addrh >> 8 ) & 0xff; - - /* we get 0xff when there is no eeprom connected */ - if ((m[0] & m[1] & m[2] & m[3] & m[4] & m[5]) == 0xff) { - printf(DRIVERNAME ": no valid mac address in environment " - "and no eeprom found\n"); - return -1; - } - - eth_setenv_enetaddr("ethaddr", m); - } + uchar *m = dev->enetaddr; - printf(DRIVERNAME ": MAC %pM\n", m); + 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); - return 0; + printf(DRIVERNAME ": MAC %pM\n", m); } -static int smc911x_miiphy_read(u8 phy, u8 reg, u16 *val) +static int smc911x_miiphy_read(struct eth_device *dev, + u8 phy, u8 reg, u16 *val) { - while (smc911x_get_mac_csr(MII_ACC) & MII_ACC_MII_BUSY) + while (smc911x_get_mac_csr(dev, MII_ACC) & MII_ACC_MII_BUSY) ; - smc911x_set_mac_csr(MII_ACC, phy << 11 | reg << 6 | MII_ACC_MII_BUSY); + smc911x_set_mac_csr(dev, MII_ACC, phy << 11 | reg << 6 | + MII_ACC_MII_BUSY); - while (smc911x_get_mac_csr(MII_ACC) & MII_ACC_MII_BUSY) + while (smc911x_get_mac_csr(dev, MII_ACC) & MII_ACC_MII_BUSY) ; - *val = smc911x_get_mac_csr(MII_DATA); + *val = smc911x_get_mac_csr(dev, MII_DATA); return 0; } -static int smc911x_miiphy_write(u8 phy, u8 reg, u16 val) +static int smc911x_miiphy_write(struct eth_device *dev, + u8 phy, u8 reg, u16 val) { - while (smc911x_get_mac_csr(MII_ACC) & MII_ACC_MII_BUSY) + while (smc911x_get_mac_csr(dev, MII_ACC) & MII_ACC_MII_BUSY) ; - smc911x_set_mac_csr(MII_DATA, val); - smc911x_set_mac_csr(MII_ACC, + smc911x_set_mac_csr(dev, MII_DATA, val); + smc911x_set_mac_csr(dev, MII_ACC, phy << 11 | reg << 6 | MII_ACC_MII_BUSY | MII_ACC_MII_WRITE); - while (smc911x_get_mac_csr(MII_ACC) & MII_ACC_MII_BUSY) + while (smc911x_get_mac_csr(dev, MII_ACC) & MII_ACC_MII_BUSY) ; return 0; } -static int smc911x_phy_reset(void) +static int smc911x_phy_reset(struct eth_device *dev) { u32 reg; - reg = smc911x_reg_read(PMT_CTRL); + reg = smc911x_reg_read(dev, PMT_CTRL); reg &= ~0xfffff030; reg |= PMT_CTRL_PHY_RST; - smc911x_reg_write(PMT_CTRL, reg); + smc911x_reg_write(dev, PMT_CTRL, reg); mdelay(100); return 0; } -static void smc911x_phy_configure(void) +static void smc911x_phy_configure(struct eth_device *dev) { int timeout; u16 status; - smc911x_phy_reset(); + smc911x_phy_reset(dev); - smc911x_miiphy_write(1, PHY_BMCR, PHY_BMCR_RESET); + smc911x_miiphy_write(dev, 1, PHY_BMCR, PHY_BMCR_RESET); mdelay(1); - smc911x_miiphy_write(1, PHY_ANAR, 0x01e1); - smc911x_miiphy_write(1, PHY_BMCR, PHY_BMCR_AUTON | PHY_BMCR_RST_NEG); + smc911x_miiphy_write(dev, 1, PHY_ANAR, 0x01e1); + smc911x_miiphy_write(dev, 1, PHY_BMCR, PHY_BMCR_AUTON | + PHY_BMCR_RST_NEG); timeout = 5000; do { @@ -135,7 +115,7 @@ static void smc911x_phy_configure(void) if ((timeout--) == 0) goto err_out; - if (smc911x_miiphy_read(1, PHY_BMSR, &status) != 0) + if (smc911x_miiphy_read(dev, 1, PHY_BMSR, &status) != 0) goto err_out; } while (!(status & PHY_BMSR_LS)); @@ -147,39 +127,39 @@ err_out: printf(DRIVERNAME ": autonegotiation timed out\n"); } -static void smc911x_enable(void) +static void smc911x_enable(struct eth_device *dev) { /* Enable TX */ - smc911x_reg_write(HW_CFG, 8 << 16 | HW_CFG_SF); + smc911x_reg_write(dev, HW_CFG, 8 << 16 | HW_CFG_SF); - smc911x_reg_write(GPT_CFG, GPT_CFG_TIMER_EN | 10000); + smc911x_reg_write(dev, GPT_CFG, GPT_CFG_TIMER_EN | 10000); - smc911x_reg_write(TX_CFG, TX_CFG_TX_ON); + smc911x_reg_write(dev, TX_CFG, TX_CFG_TX_ON); /* no padding to start of packets */ - smc911x_reg_write(RX_CFG, 0); + smc911x_reg_write(dev, RX_CFG, 0); - smc911x_set_mac_csr(MAC_CR, MAC_CR_TXEN | MAC_CR_RXEN | MAC_CR_HBDIS); + smc911x_set_mac_csr(dev, MAC_CR, MAC_CR_TXEN | MAC_CR_RXEN | + MAC_CR_HBDIS); } -int eth_init(bd_t *bd) +static int smc911x_init(struct eth_device *dev, bd_t * bd) { printf(DRIVERNAME ": initializing\n"); - if (smc911x_detect_chip()) + if (smc911x_detect_chip(dev)) goto err_out; - smc911x_reset(); + smc911x_reset(dev); /* Configure the PHY, initialize the link state */ - smc911x_phy_configure(); + smc911x_phy_configure(dev); - if (smx911x_handle_mac_address(bd)) - goto err_out; + smx911x_handle_mac_address(dev); /* Turn on Tx + Rx */ - smc911x_enable(); + smc911x_enable(dev); return 0; @@ -187,28 +167,32 @@ err_out: return -1; } -int eth_send(volatile void *packet, int length) +static int smc911x_send(struct eth_device *dev, + volatile void *packet, int length) { u32 *data = (u32*)packet; u32 tmplen; u32 status; - smc911x_reg_write(TX_DATA_FIFO, TX_CMD_A_INT_FIRST_SEG | TX_CMD_A_INT_LAST_SEG | length); - smc911x_reg_write(TX_DATA_FIFO, length); + smc911x_reg_write(dev, TX_DATA_FIFO, TX_CMD_A_INT_FIRST_SEG | + TX_CMD_A_INT_LAST_SEG | length); + smc911x_reg_write(dev, TX_DATA_FIFO, length); tmplen = (length + 3) / 4; while (tmplen--) - pkt_data_push(TX_DATA_FIFO, *data++); + pkt_data_push(dev, TX_DATA_FIFO, *data++); /* wait for transmission */ - while (!((smc911x_reg_read(TX_FIFO_INF) & TX_FIFO_INF_TSUSED) >> 16)); + while (!((smc911x_reg_read(dev, 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(TX_STATUS_FIFO) & (TX_STS_LOC | TX_STS_LATE_COLL | - TX_STS_MANY_COLL | TX_STS_MANY_DEFER | TX_STS_UNDERRUN); + status = smc911x_reg_read(dev, TX_STATUS_FIFO) & + (TX_STS_LOC | TX_STS_LATE_COLL | TX_STS_MANY_COLL | + TX_STS_MANY_DEFER | TX_STS_UNDERRUN); if (!status) return 0; @@ -223,26 +207,26 @@ int eth_send(volatile void *packet, int length) return -1; } -void eth_halt(void) +static void smc911x_halt(struct eth_device *dev) { - smc911x_reset(); + smc911x_reset(dev); } -int eth_rx(void) +static int smc911x_rx(struct eth_device *dev) { u32 *data = (u32 *)NetRxPackets[0]; u32 pktlen, tmplen; u32 status; - if ((smc911x_reg_read(RX_FIFO_INF) & RX_FIFO_INF_RXSUSED) >> 16) { - status = smc911x_reg_read(RX_STATUS_FIFO); + if ((smc911x_reg_read(dev, RX_FIFO_INF) & RX_FIFO_INF_RXSUSED) >> 16) { + status = smc911x_reg_read(dev, RX_STATUS_FIFO); pktlen = (status & RX_STS_PKT_LEN) >> 16; - smc911x_reg_write(RX_CFG, 0); + smc911x_reg_write(dev, RX_CFG, 0); tmplen = (pktlen + 2+ 3) / 4; while (tmplen--) - *data++ = pkt_data_pull(RX_DATA_FIFO); + *data++ = pkt_data_pull(dev, RX_DATA_FIFO); if (status & RX_STS_ES) printf(DRIVERNAME @@ -254,3 +238,36 @@ int eth_rx(void) return 0; } + +int smc911x_initialize(u8 dev_num, int base_addr) +{ + unsigned long addrl, addrh; + struct eth_device *dev; + + dev = malloc(sizeof(*dev)); + if (!dev) { + free(dev); + return 0; + } + memset(dev, 0, sizeof(*dev)); + + dev->iobase = base_addr; + + addrh = smc911x_get_mac_csr(dev, ADDRH); + addrl = smc911x_get_mac_csr(dev, ADDRL); + 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; + + dev->init = smc911x_init; + dev->halt = smc911x_halt; + dev->send = smc911x_send; + dev->recv = smc911x_rx; + sprintf(dev->name, "%s-%hu", DRIVERNAME, dev_num); + + eth_register(dev); + return 0; +} |
