diff options
| -rw-r--r-- | drivers/net/sh_eth.c | 293 | ||||
| -rw-r--r-- | drivers/net/sh_eth.h | 59 |
2 files changed, 104 insertions, 248 deletions
diff --git a/drivers/net/sh_eth.c b/drivers/net/sh_eth.c index 17dd0d2..27d0401 100644 --- a/drivers/net/sh_eth.c +++ b/drivers/net/sh_eth.c @@ -25,6 +25,7 @@ #include <malloc.h> #include <net.h> #include <netdev.h> +#include <miiphy.h> #include <asm/errno.h> #include <asm/io.h> @@ -45,144 +46,6 @@ #define SH_ETH_PHY_DELAY 50000 -/* - * Bits are written to the PHY serially using the - * PIR register, just like a bit banger. - */ -static void sh_eth_mii_write_phy_bits(int port, u32 val, int len) -{ - int i; - u32 pir; - - /* Bit positions is 1 less than the number of bits */ - for (i = len - 1; i >= 0; i--) { - /* Write direction, bit to write, clock is low */ - pir = 2 | ((val & 1 << i) ? 1 << 2 : 0); - outl(pir, PIR(port)); - udelay(1); - /* Write direction, bit to write, clock is high */ - pir = 3 | ((val & 1 << i) ? 1 << 2 : 0); - outl(pir, PIR(port)); - udelay(1); - /* Write direction, bit to write, clock is low */ - pir = 2 | ((val & 1 << i) ? 1 << 2 : 0); - outl(pir, PIR(port)); - udelay(1); - } -} - -static void sh_eth_mii_bus_release(int port) -{ - /* Read direction, clock is low */ - outl(0, PIR(port)); - udelay(1); - /* Read direction, clock is high */ - outl(1, PIR(port)); - udelay(1); - /* Read direction, clock is low */ - outl(0, PIR(port)); - udelay(1); -} - -static void sh_eth_mii_ind_bus_release(int port) -{ - /* Read direction, clock is low */ - outl(0, PIR(port)); - udelay(1); -} - -static void sh_eth_mii_read_phy_bits(int port, u32 *val, int len) -{ - int i; - u32 pir; - - *val = 0; - for (i = len - 1; i >= 0; i--) { - /* Read direction, clock is high */ - outl(1, PIR(port)); - udelay(1); - /* Read bit */ - pir = inl(PIR(port)); - *val |= (pir & 8) ? 1 << i : 0; - /* Read direction, clock is low */ - outl(0, PIR(port)); - udelay(1); - } -} - -#define PHY_INIT 0xFFFFFFFF -#define PHY_READ 0x02 -#define PHY_WRITE 0x01 -/* - * To read a phy register, mii managements frames are sent to the phy. - * The frames look like this: - * pre (32 bits): 0xffff ffff - * st (2 bits): 01 - * op (2bits): 10: read 01: write - * phyad (5 bits): xxxxx - * regad (5 bits): xxxxx - * ta (Bus release): - * data (16 bits): read data - */ -static u32 sh_eth_mii_read_phy_reg(int port, u8 phy_addr, int reg) -{ - u32 val; - - /* Sent mii management frame */ - /* pre */ - sh_eth_mii_write_phy_bits(port, PHY_INIT, 32); - /* st (start of frame) */ - sh_eth_mii_write_phy_bits(port, 0x1, 2); - /* op (code) */ - sh_eth_mii_write_phy_bits(port, PHY_READ, 2); - /* phy address */ - sh_eth_mii_write_phy_bits(port, phy_addr, 5); - /* Register to read */ - sh_eth_mii_write_phy_bits(port, reg, 5); - - /* Bus release */ - sh_eth_mii_bus_release(port); - - /* Read register */ - sh_eth_mii_read_phy_bits(port, &val, 16); - - return val; -} - -/* - * To write a phy register, mii managements frames are sent to the phy. - * The frames look like this: - * pre (32 bits): 0xffff ffff - * st (2 bits): 01 - * op (2bits): 10: read 01: write - * phyad (5 bits): xxxxx - * regad (5 bits): xxxxx - * ta (2 bits): 10 - * data (16 bits): write data - * idle (Independent bus release) - */ -static void sh_eth_mii_write_phy_reg(int port, u8 phy_addr, int reg, u16 val) -{ - /* Sent mii management frame */ - /* pre */ - sh_eth_mii_write_phy_bits(port, PHY_INIT, 32); - /* st (start of frame) */ - sh_eth_mii_write_phy_bits(port, 0x1, 2); - /* op (code) */ - sh_eth_mii_write_phy_bits(port, PHY_WRITE, 2); - /* phy address */ - sh_eth_mii_write_phy_bits(port, phy_addr, 5); - /* Register to read */ - sh_eth_mii_write_phy_bits(port, reg, 5); - /* ta */ - sh_eth_mii_write_phy_bits(port, PHY_READ, 2); - /* Write register data */ - sh_eth_mii_write_phy_bits(port, val, 16); - - /* Independent bus release */ - sh_eth_mii_ind_bus_release(port); -} - int sh_eth_send(struct eth_device *dev, volatile void *packet, int len) { struct sh_eth_dev *eth = dev->priv; @@ -480,62 +343,26 @@ err_tx_init: static int sh_eth_phy_config(struct sh_eth_dev *eth) { - int port = eth->port, timeout, ret = 0; + int port = eth->port, ret = 0; struct sh_eth_info *port_info = ð->port_info[port]; - u32 val; - - /* Reset phy */ - sh_eth_mii_write_phy_reg - (port, port_info->phy_addr, PHY_CTRL, PHY_C_RESET); - timeout = 10; - while (timeout--) { - val = sh_eth_mii_read_phy_reg(port, - port_info->phy_addr, PHY_CTRL); - if (!(val & PHY_C_RESET)) - break; - udelay(SH_ETH_PHY_DELAY); - } - - if (timeout < 0) { - printf(SHETHER_NAME ": phy reset timeout\n"); - ret = -EIO; - goto err_tout; - } - - /* Advertise 100/10 baseT full/half duplex */ - sh_eth_mii_write_phy_reg(port, port_info->phy_addr, PHY_ANA, - (PHY_A_FDX|PHY_A_HDX|PHY_A_10FDX|PHY_A_10HDX|PHY_A_EXT)); - /* Autonegotiation, normal operation, full duplex, enable tx */ - sh_eth_mii_write_phy_reg(port, port_info->phy_addr, PHY_CTRL, - (PHY_C_ANEGEN|PHY_C_RANEG)); - /* Wait for autonegotiation to complete */ - timeout = 100; - while (timeout--) { - val = sh_eth_mii_read_phy_reg(port, port_info->phy_addr, 1); - if (val & PHY_S_ANEGC) - break; - - udelay(SH_ETH_PHY_DELAY); - } - - if (timeout < 0) { - printf(SHETHER_NAME ": phy auto-negotiation failed\n"); - ret = -ETIMEDOUT; - goto err_tout; - } + struct eth_device *dev = port_info->dev; + struct phy_device *phydev; - return ret; + phydev = phy_connect(miiphy_get_dev_by_name(dev->name), + port_info->phy_addr, dev, PHY_INTERFACE_MODE_MII); + port_info->phydev = phydev; + phy_config(phydev); -err_tout: return ret; } static int sh_eth_config(struct sh_eth_dev *eth, bd_t *bd) { int port = eth->port, ret = 0; - u32 val, phy_status; + u32 val; struct sh_eth_info *port_info = ð->port_info[port]; struct eth_device *dev = port_info->dev; + struct phy_device *phy; /* Configure e-dmac registers */ outl((inl(EDMR(port)) & ~EMDR_DESC_R) | EDMR_EL, EDMR(port)); @@ -582,31 +409,31 @@ static int sh_eth_config(struct sh_eth_dev *eth, bd_t *bd) printf(SHETHER_NAME ": phy config timeout\n"); goto err_phy_cfg; } - /* Read phy status to finish configuring the e-mac */ - phy_status = sh_eth_mii_read_phy_reg(port, port_info->phy_addr, 1); + phy = port_info->phydev; + phy_startup(phy); /* Set the transfer speed */ #ifdef CONFIG_CPU_SH7763 - if (phy_status & (PHY_S_100X_F|PHY_S_100X_H)) { + if (phy->speed == 100) { printf(SHETHER_NAME ": 100Base/"); outl(GECMR_100B, GECMR(port)); - } else { + } else if (phy->speed == 10) { printf(SHETHER_NAME ": 10Base/"); outl(GECMR_10B, GECMR(port)); } #endif #if defined(CONFIG_CPU_SH7757) - if (phy_status & (PHY_S_100X_F|PHY_S_100X_H)) { + if (phy->speed == 100) { printf("100Base/"); outl(1, RTRATE(port)); - } else { + } else if (phy->speed == 10) { printf("10Base/"); outl(0, RTRATE(port)); } #endif /* Check if full duplex mode is supported by the phy */ - if (phy_status & (PHY_S_100X_F|PHY_S_10T_F)) { + if (phy->duplex) { printf("Full\n"); outl((ECMR_CHG_DM|ECMR_RE|ECMR_TE|ECMR_DM), ECMR(port)); } else { @@ -707,6 +534,9 @@ int sh_eth_initialize(bd_t *bd) /* Register Device to EtherNet subsystem */ eth_register(dev); + bb_miiphy_buses[0].priv = eth; + miiphy_register(dev->name, bb_miiphy_read, bb_miiphy_write); + if (!eth_getenv_enetaddr("ethaddr", dev->enetaddr)) puts("Please set MAC address\n"); @@ -722,3 +552,86 @@ err: printf(SHETHER_NAME ": Failed\n"); return ret; } + +/******* for bb_miiphy *******/ +static int sh_eth_bb_init(struct bb_miiphy_bus *bus) +{ + return 0; +} + +static int sh_eth_bb_mdio_active(struct bb_miiphy_bus *bus) +{ + struct sh_eth_dev *eth = bus->priv; + int port = eth->port; + + outl(inl(PIR(port)) | PIR_MMD, PIR(port)); + + return 0; +} + +static int sh_eth_bb_mdio_tristate(struct bb_miiphy_bus *bus) +{ + struct sh_eth_dev *eth = bus->priv; + int port = eth->port; + + outl(inl(PIR(port)) & ~PIR_MMD, PIR(port)); + + return 0; +} + +static int sh_eth_bb_set_mdio(struct bb_miiphy_bus *bus, int v) +{ + struct sh_eth_dev *eth = bus->priv; + int port = eth->port; + + if (v) + outl(inl(PIR(port)) | PIR_MDO, PIR(port)); + else + outl(inl(PIR(port)) & ~PIR_MDO, PIR(port)); + + return 0; +} + +static int sh_eth_bb_get_mdio(struct bb_miiphy_bus *bus, int *v) +{ + struct sh_eth_dev *eth = bus->priv; + int port = eth->port; + + *v = (inl(PIR(port)) & PIR_MDI) >> 3; + + return 0; +} + +static int sh_eth_bb_set_mdc(struct bb_miiphy_bus *bus, int v) +{ + struct sh_eth_dev *eth = bus->priv; + int port = eth->port; + + if (v) + outl(inl(PIR(port)) | PIR_MDC, PIR(port)); + else + outl(inl(PIR(port)) & ~PIR_MDC, PIR(port)); + + return 0; +} + +static int sh_eth_bb_delay(struct bb_miiphy_bus *bus) +{ + udelay(10); + + return 0; +} + +struct bb_miiphy_bus bb_miiphy_buses[] = { + { + .name = "sh_eth", + .init = sh_eth_bb_init, + .mdio_active = sh_eth_bb_mdio_active, + .mdio_tristate = sh_eth_bb_mdio_tristate, + .set_mdio = sh_eth_bb_set_mdio, + .get_mdio = sh_eth_bb_get_mdio, + .set_mdc = sh_eth_bb_set_mdc, + .delay = sh_eth_bb_delay, + } +}; +int bb_miiphy_buses_num = ARRAY_SIZE(bb_miiphy_buses); diff --git a/drivers/net/sh_eth.h b/drivers/net/sh_eth.h index 51e5d5b..dd6a422 100644 --- a/drivers/net/sh_eth.h +++ b/drivers/net/sh_eth.h @@ -89,6 +89,7 @@ struct sh_eth_info { u8 mac_addr[6]; u8 phy_addr; struct eth_device *dev; + struct phy_device *phydev; }; struct sh_eth_dev { @@ -435,61 +436,3 @@ enum FIFO_SIZE_BIT { FIFO_SIZE_T = 0x00000700, FIFO_SIZE_R = 0x00000007, }; -enum PHY_OFFSETS { - PHY_CTRL = 0, PHY_STAT = 1, PHY_IDT1 = 2, PHY_IDT2 = 3, - PHY_ANA = 4, PHY_ANL = 5, PHY_ANE = 6, - PHY_16 = 16, -}; - -/* PHY_CTRL */ -enum PHY_CTRL_BIT { - PHY_C_RESET = 0x8000, PHY_C_LOOPBK = 0x4000, PHY_C_SPEEDSL = 0x2000, - PHY_C_ANEGEN = 0x1000, PHY_C_PWRDN = 0x0800, PHY_C_ISO = 0x0400, - PHY_C_RANEG = 0x0200, PHY_C_DUPLEX = 0x0100, PHY_C_COLT = 0x0080, -}; -#define DM9161_PHY_C_ANEGEN 0 /* auto nego special */ - -/* PHY_STAT */ -enum PHY_STAT_BIT { - PHY_S_100T4 = 0x8000, PHY_S_100X_F = 0x4000, PHY_S_100X_H = 0x2000, - PHY_S_10T_F = 0x1000, PHY_S_10T_H = 0x0800, PHY_S_ANEGC = 0x0020, - PHY_S_RFAULT = 0x0010, PHY_S_ANEGA = 0x0008, PHY_S_LINK = 0x0004, - PHY_S_JAB = 0x0002, PHY_S_EXTD = 0x0001, -}; - -/* PHY_ANA */ -enum PHY_ANA_BIT { - PHY_A_NP = 0x8000, PHY_A_ACK = 0x4000, PHY_A_RF = 0x2000, - PHY_A_FCS = 0x0400, PHY_A_T4 = 0x0200, PHY_A_FDX = 0x0100, - PHY_A_HDX = 0x0080, PHY_A_10FDX = 0x0040, PHY_A_10HDX = 0x0020, - PHY_A_SEL = 0x001e, - PHY_A_EXT = 0x0001, -}; - -/* PHY_ANL */ -enum PHY_ANL_BIT { - PHY_L_NP = 0x8000, PHY_L_ACK = 0x4000, PHY_L_RF = 0x2000, - PHY_L_FCS = 0x0400, PHY_L_T4 = 0x0200, PHY_L_FDX = 0x0100, - PHY_L_HDX = 0x0080, PHY_L_10FDX = 0x0040, PHY_L_10HDX = 0x0020, - PHY_L_SEL = 0x001f, -}; - -/* PHY_ANE */ -enum PHY_ANE_BIT { - PHY_E_PDF = 0x0010, PHY_E_LPNPA = 0x0008, PHY_E_NPA = 0x0004, - PHY_E_PRX = 0x0002, PHY_E_LPANEGA = 0x0001, -}; - -/* DM9161 */ -enum PHY_16_BIT { - PHY_16_BP4B45 = 0x8000, PHY_16_BPSCR = 0x4000, PHY_16_BPALIGN = 0x2000, - PHY_16_BP_ADPOK = 0x1000, PHY_16_Repeatmode = 0x0800, - PHY_16_TXselect = 0x0400, - PHY_16_Rsvd = 0x0200, PHY_16_RMIIEnable = 0x0100, - PHY_16_Force100LNK = 0x0080, - PHY_16_APDLED_CTL = 0x0040, PHY_16_COLLED_CTL = 0x0020, - PHY_16_RPDCTR_EN = 0x0010, - PHY_16_ResetStMch = 0x0008, PHY_16_PreamSupr = 0x0004, - PHY_16_Sleepmode = 0x0002, - PHY_16_RemoteLoopOut = 0x0001, -}; |