]> git.sur5r.net Git - u-boot/commitdiff
net: sh_eth: use miiphybb instead of own mii functions
authorYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Tue, 11 Oct 2011 09:10:14 +0000 (18:10 +0900)
committerNobuhiro Iwamatsu <iwamatsu@nigauri.org>
Fri, 2 Dec 2011 04:46:20 +0000 (13:46 +0900)
The sh_eth driver had an own mii functions. However the function
didn't support the gigabit PHY. The U-Boot has the general phy driver
and miiphybb driver, and they already support it.
So this patch removes the own functions and uses the phy driver.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
drivers/net/sh_eth.c
drivers/net/sh_eth.h

index 17dd0d2816ab1b6773fa9fb94e661d449af02883..27d040125eef311df3d22a03b5024764ca5c65fb 100644 (file)
@@ -25,6 +25,7 @@
 #include <malloc.h>
 #include <net.h>
 #include <netdev.h>
+#include <miiphy.h>
 #include <asm/errno.h>
 #include <asm/io.h>
 
 
 #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 = &eth->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 = &eth->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);
index 51e5d5b6f699b66509622682a056938ef82ff6d3..dd6a4224e11377ae1245fce280c9b1933cc0101d 100644 (file)
@@ -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,
-};