net: sh_eth: remove almost #ifdef of SH7763

The SH7763 has GETHER. So the specification of some registers differs than
other CPUs. This patch removes almost #ifdef of CONFIG_CPU_SUBTYPE_SH7763.
Then we are able to add other CPU's GETHER easily.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 47 insertions, 39 deletions

diff --git a/drivers/net/sh_eth.c b/drivers/net/sh_eth.c
index c7abcc586dbd..6734311e56e4 100644
--- a/drivers/net/sh_eth.c
+++ b/drivers/net/sh_eth.c
@@ -157,7 +157,7 @@ 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, EDMR);
+        sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_GETHER, EDMR);
         while (cnt > 0) {
                 if (!(sh_eth_read(ndev, EDMR) & 0x3))
                         break;
@@ -285,9 +285,9 @@ static void sh_eth_set_default_cpu_data(struct sh_eth_cpu_data *cd)
 /* Chip Reset */
 static void sh_eth_reset(struct net_device *ndev)
 {
-        sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST, EDMR);
+        sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_ETHER, EDMR);
         mdelay(3);
-        sh_eth_write(ndev, sh_eth_read(ndev, EDMR) & ~EDMR_SRST, EDMR);
+        sh_eth_write(ndev, sh_eth_read(ndev, EDMR) & ~EDMR_SRST_ETHER, EDMR);
 }
 #endif
 
@@ -365,6 +365,22 @@ static void read_mac_address(struct net_device *ndev, unsigned char *mac)
         }
 }
 
+static int sh_eth_is_gether(struct sh_eth_private *mdp)
+{
+        if (mdp->reg_offset == sh_eth_offset_gigabit)
+                return 1;
+        else
+                return 0;
+}
+
+static unsigned long sh_eth_get_edtrr_trns(struct sh_eth_private *mdp)
+{
+        if (sh_eth_is_gether(mdp))
+                return EDTRR_TRNS_GETHER;
+        else
+                return EDTRR_TRNS_ETHER;
+}
+
 struct bb_info {
         struct mdiobb_ctrl ctrl;
         u32 addr;
@@ -504,9 +520,8 @@ static void sh_eth_ring_format(struct net_device *ndev)
                 /* Rx descriptor address set */
                 if (i == 0) {
                         sh_eth_write(ndev, mdp->rx_desc_dma, RDLAR);
-#if defined(CONFIG_CPU_SUBTYPE_SH7763)
-                        sh_eth_write(ndev, mdp->rx_desc_dma, RDFAR);
-#endif
+                        if (sh_eth_is_gether(mdp))
+                                sh_eth_write(ndev, mdp->rx_desc_dma, RDFAR);
                 }
         }
 
@@ -526,9 +541,8 @@ static void sh_eth_ring_format(struct net_device *ndev)
                 if (i == 0) {
                         /* Tx descriptor address set */
                         sh_eth_write(ndev, mdp->tx_desc_dma, TDLAR);
-#if defined(CONFIG_CPU_SUBTYPE_SH7763)
-                        sh_eth_write(ndev, mdp->tx_desc_dma, TDFAR);
-#endif
+                        if (sh_eth_is_gether(mdp))
+                                sh_eth_write(ndev, mdp->tx_desc_dma, TDFAR);
                 }
         }
 
@@ -940,9 +954,9 @@ static void sh_eth_error(struct net_device *ndev, int intr_status)
                 sh_eth_txfree(ndev);
 
                 /* SH7712 BUG */
-                if (edtrr ^ EDTRR_TRNS) {
+                if (edtrr ^ sh_eth_get_edtrr_trns(mdp)) {
                         /* tx dma start */
-                        sh_eth_write(ndev, EDTRR_TRNS, EDTRR);
+                        sh_eth_write(ndev, sh_eth_get_edtrr_trns(mdp), EDTRR);
                 }
                 /* wakeup */
                 netif_wake_queue(ndev);
@@ -1347,8 +1361,8 @@ static int sh_eth_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 
         mdp->cur_tx++;
 
-        if (!(sh_eth_read(ndev, EDTRR) & EDTRR_TRNS))
-                sh_eth_write(ndev, EDTRR_TRNS, EDTRR);
+        if (!(sh_eth_read(ndev, EDTRR) & sh_eth_get_edtrr_trns(mdp)))
+                sh_eth_write(ndev, sh_eth_get_edtrr_trns(mdp), EDTRR);
 
         return NETDEV_TX_OK;
 }
@@ -1406,15 +1420,15 @@ static struct net_device_stats *sh_eth_get_stats(struct net_device *ndev)
         sh_eth_write(ndev, 0, CDCR);    /* (write clear) */
         mdp->stats.tx_carrier_errors += sh_eth_read(ndev, LCCR);
         sh_eth_write(ndev, 0, LCCR);    /* (write clear) */
-#if defined(CONFIG_CPU_SUBTYPE_SH7763)
-        mdp->stats.tx_carrier_errors += sh_eth_read(ndev, CERCR);/* CERCR */
-        sh_eth_write(ndev, 0, CERCR);   /* (write clear) */
-        mdp->stats.tx_carrier_errors += sh_eth_read(ndev, CEECR);/* CEECR */
-        sh_eth_write(ndev, 0, CEECR);   /* (write clear) */
-#else
-        mdp->stats.tx_carrier_errors += sh_eth_read(ndev, CNDCR);
-        sh_eth_write(ndev, 0, CNDCR);   /* (write clear) */
-#endif
+        if (sh_eth_is_gether(mdp)) {
+                mdp->stats.tx_carrier_errors += sh_eth_read(ndev, CERCR);
+                sh_eth_write(ndev, 0, CERCR);   /* (write clear) */
+                mdp->stats.tx_carrier_errors += sh_eth_read(ndev, CEECR);
+                sh_eth_write(ndev, 0, CEECR);   /* (write clear) */
+        } else {
+                mdp->stats.tx_carrier_errors += sh_eth_read(ndev, CNDCR);
+                sh_eth_write(ndev, 0, CNDCR);   /* (write clear) */
+        }
         pm_runtime_put_sync(&mdp->pdev->dev);
 
         return &mdp->stats;
@@ -1465,13 +1479,13 @@ static void sh_eth_tsu_init(struct sh_eth_private *mdp)
         sh_eth_tsu_write(mdp, 0, TSU_FWSL0);
         sh_eth_tsu_write(mdp, 0, TSU_FWSL1);
         sh_eth_tsu_write(mdp, TSU_FWSLC_POSTENU | TSU_FWSLC_POSTENL, TSU_FWSLC);
-#if defined(CONFIG_CPU_SUBTYPE_SH7763)
-        sh_eth_tsu_write(mdp, 0, TSU_QTAG0);    /* Disable QTAG(0->1) */
-        sh_eth_tsu_write(mdp, 0, TSU_QTAG1);    /* Disable QTAG(1->0) */
-#else
-        sh_eth_tsu_write(mdp, 0, TSU_QTAGM0);   /* Disable QTAG(0->1) */
-        sh_eth_tsu_write(mdp, 0, TSU_QTAGM1);   /* Disable QTAG(1->0) */
-#endif
+        if (sh_eth_is_gether(mdp)) {
+                sh_eth_tsu_write(mdp, 0, TSU_QTAG0);    /* Disable QTAG(0->1) */
+                sh_eth_tsu_write(mdp, 0, TSU_QTAG1);    /* Disable QTAG(1->0) */
+        } else {
+                sh_eth_tsu_write(mdp, 0, TSU_QTAGM0);   /* Disable QTAG(0->1) */
+                sh_eth_tsu_write(mdp, 0, TSU_QTAGM1);   /* Disable QTAG(1->0) */
+        }
         sh_eth_tsu_write(mdp, 0, TSU_FWSR);     /* all interrupt status clear */
         sh_eth_tsu_write(mdp, 0, TSU_FWINMK);   /* Disable all interrupt */
         sh_eth_tsu_write(mdp, 0, TSU_TEN);      /* Disable all CAM entry */
diff --git a/drivers/net/sh_eth.h b/drivers/net/sh_eth.h
index 35a3adbb2e7a..b349c5e2bcda 100644
--- a/drivers/net/sh_eth.h
+++ b/drivers/net/sh_eth.h
@@ -400,20 +400,14 @@ enum GECMR_BIT {
 enum DMAC_M_BIT {
         EDMR_EL = 0x40, /* Litte endian */
         EDMR_DL1 = 0x20, EDMR_DL0 = 0x10,
-#ifdef CONFIG_CPU_SUBTYPE_SH7763
-        EDMR_SRST = 0x03,
-#else /* CONFIG_CPU_SUBTYPE_SH7763 */
-        EDMR_SRST = 0x01,
-#endif
+        EDMR_SRST_GETHER = 0x03,
+        EDMR_SRST_ETHER = 0x01,
 };
 
 /* EDTRR */
 enum DMAC_T_BIT {
-#ifdef CONFIG_CPU_SUBTYPE_SH7763
-        EDTRR_TRNS = 0x03,
-#else
-        EDTRR_TRNS = 0x01,
-#endif
+        EDTRR_TRNS_GETHER = 0x03,
+        EDTRR_TRNS_ETHER = 0x01,
 };
 
 /* EDRRR*/