diff options
Diffstat (limited to 'drivers/net/ethernet/renesas/sh_eth.c')
| -rw-r--r-- | drivers/net/ethernet/renesas/sh_eth.c | 128 |
1 files changed, 122 insertions, 6 deletions
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index d63e09b29a96..79bf09b41971 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -386,6 +386,114 @@ static void sh_eth_reset_hw_crc(struct net_device *ndev) sh_eth_write(ndev, 0x0, CSMR); } +#elif defined(CONFIG_ARCH_R8A7740) +#define SH_ETH_HAS_TSU 1 +static void sh_eth_chip_reset(struct net_device *ndev) +{ + struct sh_eth_private *mdp = netdev_priv(ndev); + unsigned long mii; + + /* reset device */ + sh_eth_tsu_write(mdp, ARSTR_ARSTR, ARSTR); + mdelay(1); + + switch (mdp->phy_interface) { + case PHY_INTERFACE_MODE_GMII: + mii = 2; + break; + case PHY_INTERFACE_MODE_MII: + mii = 1; + break; + case PHY_INTERFACE_MODE_RMII: + default: + mii = 0; + break; + } + sh_eth_write(ndev, mii, RMII_MII); +} + +static void sh_eth_reset(struct net_device *ndev) +{ + int cnt = 100; + + sh_eth_write(ndev, EDSR_ENALL, EDSR); + sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_GETHER, EDMR); + while (cnt > 0) { + if (!(sh_eth_read(ndev, EDMR) & 0x3)) + break; + mdelay(1); + cnt--; + } + if (cnt == 0) + printk(KERN_ERR "Device reset fail\n"); + + /* Table Init */ + sh_eth_write(ndev, 0x0, TDLAR); + sh_eth_write(ndev, 0x0, TDFAR); + sh_eth_write(ndev, 0x0, TDFXR); + sh_eth_write(ndev, 0x0, TDFFR); + sh_eth_write(ndev, 0x0, RDLAR); + sh_eth_write(ndev, 0x0, RDFAR); + sh_eth_write(ndev, 0x0, RDFXR); + sh_eth_write(ndev, 0x0, RDFFR); +} + +static void sh_eth_set_duplex(struct net_device *ndev) +{ + struct sh_eth_private *mdp = netdev_priv(ndev); + + if (mdp->duplex) /* Full */ + sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_DM, ECMR); + else /* Half */ + sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_DM, ECMR); +} + +static void sh_eth_set_rate(struct net_device *ndev) +{ + struct sh_eth_private *mdp = netdev_priv(ndev); + + switch (mdp->speed) { + case 10: /* 10BASE */ + sh_eth_write(ndev, GECMR_10, GECMR); + break; + case 100:/* 100BASE */ + sh_eth_write(ndev, GECMR_100, GECMR); + break; + case 1000: /* 1000BASE */ + sh_eth_write(ndev, GECMR_1000, GECMR); + break; + default: + break; + } +} + +/* R8A7740 */ +static struct sh_eth_cpu_data sh_eth_my_cpu_data = { + .chip_reset = sh_eth_chip_reset, + .set_duplex = sh_eth_set_duplex, + .set_rate = sh_eth_set_rate, + + .ecsr_value = ECSR_ICD | ECSR_MPD, + .ecsipr_value = ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP, + .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, + + .tx_check = EESR_TC1 | EESR_FTC, + .eesr_err_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | \ + EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | \ + EESR_ECI, + .tx_error_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_TDE | \ + EESR_TFE, + + .apr = 1, + .mpr = 1, + .tpauser = 1, + .bculr = 1, + .hw_swap = 1, + .no_trimd = 1, + .no_ade = 1, + .tsu = 1, +}; + #elif defined(CONFIG_CPU_SUBTYPE_SH7619) #define SH_ETH_RESET_DEFAULT 1 static struct sh_eth_cpu_data sh_eth_my_cpu_data = { @@ -443,7 +551,7 @@ static void sh_eth_reset(struct net_device *ndev) } #endif -#if defined(CONFIG_CPU_SH4) +#if defined(CONFIG_CPU_SH4) || defined(CONFIG_ARCH_SHMOBILE) static void sh_eth_set_receive_align(struct sk_buff *skb) { int reserve; @@ -903,7 +1011,7 @@ static int sh_eth_txfree(struct net_device *ndev) } /* Packet receive function */ -static int sh_eth_rx(struct net_device *ndev) +static int sh_eth_rx(struct net_device *ndev, u32 intr_status) { struct sh_eth_private *mdp = netdev_priv(ndev); struct sh_eth_rxdesc *rxdesc; @@ -919,6 +1027,10 @@ static int sh_eth_rx(struct net_device *ndev) desc_status = edmac_to_cpu(mdp, rxdesc->status); pkt_len = rxdesc->frame_length; +#if defined(CONFIG_ARCH_R8A7740) + desc_status >>= 16; +#endif + if (--boguscnt < 0) break; @@ -989,8 +1101,14 @@ static int sh_eth_rx(struct net_device *ndev) /* Restart Rx engine if stopped. */ /* If we don't need to check status, don't. -KDU */ - if (!(sh_eth_read(ndev, EDRRR) & EDRRR_R)) + if (!(sh_eth_read(ndev, EDRRR) & EDRRR_R)) { + /* fix the values for the next receiving if RDE is set */ + if (intr_status & EESR_RDE) + mdp->cur_rx = mdp->dirty_rx = + (sh_eth_read(ndev, RDFAR) - + sh_eth_read(ndev, RDLAR)) >> 4; sh_eth_write(ndev, EDRRR_R, EDRRR); + } return 0; } @@ -1087,8 +1205,6 @@ static void sh_eth_error(struct net_device *ndev, int intr_status) /* Receive Descriptor Empty int */ ndev->stats.rx_over_errors++; - if (sh_eth_read(ndev, EDRRR) ^ EDRRR_R) - sh_eth_write(ndev, EDRRR_R, EDRRR); if (netif_msg_rx_err(mdp)) dev_err(&ndev->dev, "Receive Descriptor Empty\n"); } @@ -1159,7 +1275,7 @@ static irqreturn_t sh_eth_interrupt(int irq, void *netdev) EESR_RTSF | /* short frame recv */ EESR_PRE | /* PHY-LSI recv error */ EESR_CERF)){ /* recv frame CRC error */ - sh_eth_rx(ndev); + sh_eth_rx(ndev, intr_status); } /* Tx Check */ |