[PATCH] FS_ENET: use PAL for mii management

This patch should update the fs_enet infrastructure to utilize Phy Abstraction
Layer subsystem.  Along with the above, there are apparent bugfixes, overhaul
and improvements.

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 18 insertions, 124 deletions

diff --git a/drivers/net/fs_enet/mac-fec.c b/drivers/net/fs_enet/mac-fec.c
index e09547077529..c2c5fd419bd0 100644
--- a/drivers/net/fs_enet/mac-fec.c
+++ b/drivers/net/fs_enet/mac-fec.c
@@ -46,6 +46,7 @@
 #endif
 
 #include "fs_enet.h"
+#include "fec.h"
 
 /*************************************************/
 
@@ -75,50 +76,8 @@
 /* clear bits */
 #define FC(_fecp, _reg, _v) FW(_fecp, _reg, FR(_fecp, _reg) & ~(_v))
 
-
-/* CRC polynomium used by the FEC for the multicast group filtering */
-#define FEC_CRC_POLY   0x04C11DB7
-
-#define FEC_MAX_MULTICAST_ADDRS 64
-
-/* Interrupt events/masks.
-*/
-#define FEC_ENET_HBERR  0x80000000U     /* Heartbeat error          */
-#define FEC_ENET_BABR   0x40000000U     /* Babbling receiver        */
-#define FEC_ENET_BABT   0x20000000U     /* Babbling transmitter     */
-#define FEC_ENET_GRA    0x10000000U     /* Graceful stop complete   */
-#define FEC_ENET_TXF    0x08000000U     /* Full frame transmitted   */
-#define FEC_ENET_TXB    0x04000000U     /* A buffer was transmitted */
-#define FEC_ENET_RXF    0x02000000U     /* Full frame received      */
-#define FEC_ENET_RXB    0x01000000U     /* A buffer was received    */
-#define FEC_ENET_MII    0x00800000U     /* MII interrupt            */
-#define FEC_ENET_EBERR  0x00400000U     /* SDMA bus error           */
-
-#define FEC_ECNTRL_PINMUX       0x00000004
-#define FEC_ECNTRL_ETHER_EN     0x00000002
-#define FEC_ECNTRL_RESET        0x00000001
-
-#define FEC_RCNTRL_BC_REJ       0x00000010
-#define FEC_RCNTRL_PROM         0x00000008
-#define FEC_RCNTRL_MII_MODE     0x00000004
-#define FEC_RCNTRL_DRT          0x00000002
-#define FEC_RCNTRL_LOOP         0x00000001
-
-#define FEC_TCNTRL_FDEN         0x00000004
-#define FEC_TCNTRL_HBC          0x00000002
-#define FEC_TCNTRL_GTS          0x00000001
-
-
-/* Make MII read/write commands for the FEC.
-*/
-#define mk_mii_read(REG)        (0x60020000 | ((REG & 0x1f) << 18))
-#define mk_mii_write(REG, VAL)  (0x50020000 | ((REG & 0x1f) << 18) | (VAL & 0xffff))
-#define mk_mii_end              0
-
-#define FEC_MII_LOOPS   10000
-
 /*
- * Delay to wait for FEC reset command to complete (in us) 
+ * Delay to wait for FEC reset command to complete (in us)
  */
 #define FEC_RESET_DELAY         50
 
@@ -303,13 +262,15 @@ static void restart(struct net_device *dev)
         int r;
         u32 addrhi, addrlo;
 
+        struct mii_bus* mii = fep->phydev->bus;
+        struct fec_info* fec_inf = mii->priv;
+
         r = whack_reset(fep->fec.fecp);
         if (r != 0)
                 printk(KERN_ERR DRV_MODULE_NAME
                                 ": %s FEC Reset FAILED!\n", dev->name);
-
         /*
-         * Set station address. 
+         * Set station address.
          */
         addrhi = ((u32) dev->dev_addr[0] << 24) |
                  ((u32) dev->dev_addr[1] << 16) |
@@ -350,12 +311,12 @@ static void restart(struct net_device *dev)
         FW(fecp, fun_code, 0x78000000);
 
         /*
-         * Set MII speed. 
+         * Set MII speed.
          */
-        FW(fecp, mii_speed, fep->mii_bus->fec.mii_speed);
+        FW(fecp, mii_speed, fec_inf->mii_speed);
 
         /*
-         * Clear any outstanding interrupt. 
+         * Clear any outstanding interrupt.
          */
         FW(fecp, ievent, 0xffc0);
         FW(fecp, ivec, (fep->interrupt / 2) << 29);
@@ -390,11 +351,12 @@ static void restart(struct net_device *dev)
         }
 #endif
 
+
         FW(fecp, r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */
         /*
-         * adjust to duplex mode 
+         * adjust to duplex mode
          */
-        if (fep->duplex) {
+        if (fep->phydev->duplex) {
                 FC(fecp, r_cntrl, FEC_RCNTRL_DRT);
                 FS(fecp, x_cntrl, FEC_TCNTRL_FDEN);     /* FD enable */
         } else {
@@ -418,9 +380,11 @@ static void restart(struct net_device *dev)
 static void stop(struct net_device *dev)
 {
         struct fs_enet_private *fep = netdev_priv(dev);
+        const struct fs_platform_info *fpi = fep->fpi;
         fec_t *fecp = fep->fec.fecp;
-        struct fs_enet_mii_bus *bus = fep->mii_bus;
-        const struct fs_mii_bus_info *bi = bus->bus_info;
+
+        struct fec_info* feci= fep->phydev->bus->priv;
+
         int i;
 
         if ((FR(fecp, ecntrl) & FEC_ECNTRL_ETHER_EN) == 0)
@@ -444,11 +408,11 @@ static void stop(struct net_device *dev)
         fs_cleanup_bds(dev);
 
         /* shut down FEC1? that's where the mii bus is */
-        if (fep->fec.idx == 0 && bus->refs > 1 && bi->method == fsmii_fec) {
+        if (fpi->has_phy) {
                 FS(fecp, r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */
                 FS(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN);
                 FW(fecp, ievent, FEC_ENET_MII);
-                FW(fecp, mii_speed, bus->fec.mii_speed);
+                FW(fecp, mii_speed, feci->mii_speed);
         }
 }
 
@@ -583,73 +547,3 @@ const struct fs_ops fs_fec_ops = {
         .free_bd                = free_bd,
 };
 
-/***********************************************************************/
-
-static int mii_read(struct fs_enet_mii_bus *bus, int phy_id, int location)
-{
-        fec_t *fecp = bus->fec.fecp;
-        int i, ret = -1;
-
-        if ((FR(fecp, r_cntrl) & FEC_RCNTRL_MII_MODE) == 0)
-                BUG();
-
-        /* Add PHY address to register command.  */
-        FW(fecp, mii_data, (phy_id << 23) | mk_mii_read(location));
-
-        for (i = 0; i < FEC_MII_LOOPS; i++)
-                if ((FR(fecp, ievent) & FEC_ENET_MII) != 0)
-                        break;
-
-        if (i < FEC_MII_LOOPS) {
-                FW(fecp, ievent, FEC_ENET_MII);
-                ret = FR(fecp, mii_data) & 0xffff;
-        }
-
-        return ret;
-}
-
-static void mii_write(struct fs_enet_mii_bus *bus, int phy_id, int location, int value)
-{
-        fec_t *fecp = bus->fec.fecp;
-        int i;
-
-        /* this must never happen */
-        if ((FR(fecp, r_cntrl) & FEC_RCNTRL_MII_MODE) == 0)
-                BUG();
-
-        /* Add PHY address to register command.  */
-        FW(fecp, mii_data, (phy_id << 23) | mk_mii_write(location, value));
-
-        for (i = 0; i < FEC_MII_LOOPS; i++)
-                if ((FR(fecp, ievent) & FEC_ENET_MII) != 0)
-                        break;
-
-        if (i < FEC_MII_LOOPS)
-                FW(fecp, ievent, FEC_ENET_MII);
-}
-
-int fs_mii_fec_init(struct fs_enet_mii_bus *bus)
-{
-        bd_t *bd = (bd_t *)__res;
-        const struct fs_mii_bus_info *bi = bus->bus_info;
-        fec_t *fecp;
-
-        if (bi->id != 0)
-                return -1;
-
-        bus->fec.fecp = &((immap_t *)fs_enet_immap)->im_cpm.cp_fec;
-        bus->fec.mii_speed = ((((bd->bi_intfreq + 4999999) / 2500000) / 2)
-                                & 0x3F) << 1;
-
-        fecp = bus->fec.fecp;
-
-        FS(fecp, r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */
-        FS(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN);
-        FW(fecp, ievent, FEC_ENET_MII);
-        FW(fecp, mii_speed, bus->fec.mii_speed);
-
-        bus->mii_read = mii_read;
-        bus->mii_write = mii_write;
-
-        return 0;
-}