[netdrvr] sh_eth: Add SH7619 support

Add support SH7619 Internal ethernet controler.

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

4 files changed, 82 insertions, 25 deletions

diff --git a/arch/sh/include/asm/sh_eth.h b/arch/sh/include/asm/sh_eth.h
new file mode 100644
index 000000000000..bb832584f3c1
--- /dev/null
+++ b/arch/sh/include/asm/sh_eth.h
@@ -0,0 +1,11 @@
+#ifndef __ASM_SH_ETH_H__
+#define __ASM_SH_ETH_H__
+
+enum {EDMAC_LITTLE_ENDIAN, EDMAC_BIG_ENDIAN};
+
+struct sh_eth_plat_data {
+        int phy;
+        int edmac_endian;
+};
+
+#endif
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 8a03875ec877..4b4cb2bf4f11 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -510,14 +510,15 @@ config STNIC
 config SH_ETH
         tristate "Renesas SuperH Ethernet support"
         depends on SUPERH && \
-                (CPU_SUBTYPE_SH7710 || CPU_SUBTYPE_SH7712 || CPU_SUBTYPE_SH7763)
+                (CPU_SUBTYPE_SH7710 || CPU_SUBTYPE_SH7712 || CPU_SUBTYPE_SH7763 || \
+                 CPU_SUBTYPE_SH7619)
         select CRC32
         select MII
         select MDIO_BITBANG
         select PHYLIB
         help
           Renesas SuperH Ethernet device driver.
-          This driver support SH7710, SH7712 and SH7763.
+          This driver support SH7710, SH7712, SH7763 and SH7619.
 
 config SUNLANCE
         tristate "Sun LANCE support"
diff --git a/drivers/net/sh_eth.c b/drivers/net/sh_eth.c
index 6a06b9503e4f..25e62cf58d3a 100644
--- a/drivers/net/sh_eth.c
+++ b/drivers/net/sh_eth.c
@@ -34,6 +34,29 @@
 
 #include "sh_eth.h"
 
+/* CPU <-> EDMAC endian convert */
+static inline __u32 cpu_to_edmac(struct sh_eth_private *mdp, u32 x)
+{
+        switch (mdp->edmac_endian) {
+        case EDMAC_LITTLE_ENDIAN:
+                return cpu_to_le32(x);
+        case EDMAC_BIG_ENDIAN:
+                return cpu_to_be32(x);
+        }
+        return x;
+}
+
+static inline __u32 edmac_to_cpu(struct sh_eth_private *mdp, u32 x)
+{
+        switch (mdp->edmac_endian) {
+        case EDMAC_LITTLE_ENDIAN:
+                return le32_to_cpu(x);
+        case EDMAC_BIG_ENDIAN:
+                return be32_to_cpu(x);
+        }
+        return x;
+}
+
 /*
  * Program the hardware MAC address from dev->dev_addr.
  */
@@ -240,7 +263,7 @@ static void sh_eth_ring_format(struct net_device *ndev)
                 /* RX descriptor */
                 rxdesc = &mdp->rx_ring[i];
                 rxdesc->addr = (u32)skb->data & ~0x3UL;
-                rxdesc->status = cpu_to_le32(RD_RACT | RD_RFP);
+                rxdesc->status = cpu_to_edmac(mdp, RD_RACT | RD_RFP);
 
                 /* The size of the buffer is 16 byte boundary. */
                 rxdesc->buffer_length = (mdp->rx_buf_sz + 16) & ~0x0F;
@@ -262,7 +285,7 @@ static void sh_eth_ring_format(struct net_device *ndev)
         mdp->dirty_rx = (u32) (i - RX_RING_SIZE);
 
         /* Mark the last entry as wrapping the ring. */
-        rxdesc->status |= cpu_to_le32(RD_RDEL);
+        rxdesc->status |= cpu_to_edmac(mdp, RD_RDEL);
 
         memset(mdp->tx_ring, 0, tx_ringsize);
 
@@ -270,10 +293,10 @@ static void sh_eth_ring_format(struct net_device *ndev)
         for (i = 0; i < TX_RING_SIZE; i++) {
                 mdp->tx_skbuff[i] = NULL;
                 txdesc = &mdp->tx_ring[i];
-                txdesc->status = cpu_to_le32(TD_TFP);
+                txdesc->status = cpu_to_edmac(mdp, TD_TFP);
                 txdesc->buffer_length = 0;
                 if (i == 0) {
-                        /* Rx descriptor address set */
+                        /* Tx descriptor address set */
                         ctrl_outl((u32)txdesc, ioaddr + TDLAR);
 #if defined(CONFIG_CPU_SUBTYPE_SH7763)
                         ctrl_outl((u32)txdesc, ioaddr + TDFAR);
@@ -281,13 +304,13 @@ static void sh_eth_ring_format(struct net_device *ndev)
                 }
         }
 
-        /* Rx descriptor address set */
+        /* Tx descriptor address set */
 #if defined(CONFIG_CPU_SUBTYPE_SH7763)
         ctrl_outl((u32)txdesc, ioaddr + TDFXR);
         ctrl_outl(0x1, ioaddr + TDFFR);
 #endif
 
-        txdesc->status |= cpu_to_le32(TD_TDLE);
+        txdesc->status |= cpu_to_edmac(mdp, TD_TDLE);
 }
 
 /* Get skb and descriptor buffer */
@@ -455,7 +478,7 @@ static int sh_eth_txfree(struct net_device *ndev)
         for (; mdp->cur_tx - mdp->dirty_tx > 0; mdp->dirty_tx++) {
                 entry = mdp->dirty_tx % TX_RING_SIZE;
                 txdesc = &mdp->tx_ring[entry];
-                if (txdesc->status & cpu_to_le32(TD_TACT))
+                if (txdesc->status & cpu_to_edmac(mdp, TD_TACT))
                         break;
                 /* Free the original skb. */
                 if (mdp->tx_skbuff[entry]) {
@@ -463,9 +486,9 @@ static int sh_eth_txfree(struct net_device *ndev)
                         mdp->tx_skbuff[entry] = NULL;
                         freeNum++;
                 }
-                txdesc->status = cpu_to_le32(TD_TFP);
+                txdesc->status = cpu_to_edmac(mdp, TD_TFP);
                 if (entry >= TX_RING_SIZE - 1)
-                        txdesc->status |= cpu_to_le32(TD_TDLE);
+                        txdesc->status |= cpu_to_edmac(mdp, TD_TDLE);
 
                 mdp->stats.tx_packets++;
                 mdp->stats.tx_bytes += txdesc->buffer_length;
@@ -486,8 +509,8 @@ static int sh_eth_rx(struct net_device *ndev)
         u32 desc_status, reserve = 0;
 
         rxdesc = &mdp->rx_ring[entry];
-        while (!(rxdesc->status & cpu_to_le32(RD_RACT))) {
-                desc_status = le32_to_cpu(rxdesc->status);
+        while (!(rxdesc->status & cpu_to_edmac(mdp, RD_RACT))) {
+                desc_status = edmac_to_cpu(mdp, rxdesc->status);
                 pkt_len = rxdesc->frame_length;
 
                 if (--boguscnt < 0)
@@ -522,7 +545,7 @@ static int sh_eth_rx(struct net_device *ndev)
                         mdp->stats.rx_packets++;
                         mdp->stats.rx_bytes += pkt_len;
                 }
-                rxdesc->status |= cpu_to_le32(RD_RACT);
+                rxdesc->status |= cpu_to_edmac(mdp, RD_RACT);
                 entry = (++mdp->cur_rx) % RX_RING_SIZE;
         }
 
@@ -552,10 +575,10 @@ static int sh_eth_rx(struct net_device *ndev)
                 }
                 if (entry >= RX_RING_SIZE - 1)
                         rxdesc->status |=
-                                cpu_to_le32(RD_RACT | RD_RFP | RD_RDEL);
+                                cpu_to_edmac(mdp, RD_RACT | RD_RFP | RD_RDEL);
                 else
                         rxdesc->status |=
-                                cpu_to_le32(RD_RACT | RD_RFP);
+                                cpu_to_edmac(mdp, RD_RACT | RD_RFP);
         }
 
         /* Restart Rx engine if stopped. */
@@ -931,9 +954,9 @@ static int sh_eth_start_xmit(struct sk_buff *skb, struct net_device *ndev)
                 txdesc->buffer_length = skb->len;
 
         if (entry >= TX_RING_SIZE - 1)
-                txdesc->status |= cpu_to_le32(TD_TACT | TD_TDLE);
+                txdesc->status |= cpu_to_edmac(mdp, TD_TACT | TD_TDLE);
         else
-                txdesc->status |= cpu_to_le32(TD_TACT);
+                txdesc->status |= cpu_to_edmac(mdp, TD_TACT);
 
         mdp->cur_tx++;
 
@@ -1159,6 +1182,7 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
         struct resource *res;
         struct net_device *ndev = NULL;
         struct sh_eth_private *mdp;
+        struct sh_eth_plat_data *pd;
 
         /* get base addr */
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -1196,8 +1220,11 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
         mdp = netdev_priv(ndev);
         spin_lock_init(&mdp->lock);
 
+        pd = (struct sh_eth_plat_data *)(pdev->dev.platform_data);
         /* get PHY ID */
-        mdp->phy_id = (int)pdev->dev.platform_data;
+        mdp->phy_id = pd->phy;
+        /* EDMAC endian */
+        mdp->edmac_endian = pd->edmac_endian;
 
         /* set function */
         ndev->open = sh_eth_open;
@@ -1217,12 +1244,16 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
 
         /* First device only init */
         if (!devno) {
+#if defined(ARSTR)
                 /* reset device */
                 ctrl_outl(ARSTR_ARSTR, ARSTR);
                 mdelay(1);
+#endif
 
+#if defined(SH_TSU_ADDR)
                 /* TSU init (Init only)*/
                 sh_eth_tsu_init(SH_TSU_ADDR);
+#endif
         }
 
         /* network device register */
@@ -1240,8 +1271,8 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
                ndev->name, CARDNAME, (u32) ndev->base_addr);
 
         for (i = 0; i < 5; i++)
-                printk(KERN_INFO "%02X:", ndev->dev_addr[i]);
-        printk(KERN_INFO "%02X, IRQ %d.\n", ndev->dev_addr[i], ndev->irq);
+                printk("%02X:", ndev->dev_addr[i]);
+        printk("%02X, IRQ %d.\n", ndev->dev_addr[i], ndev->irq);
 
         platform_set_drvdata(pdev, ndev);
 
diff --git a/drivers/net/sh_eth.h b/drivers/net/sh_eth.h
index 45ad1b09ca5a..73bc7181cc18 100644
--- a/drivers/net/sh_eth.h
+++ b/drivers/net/sh_eth.h
@@ -30,6 +30,8 @@
 #include <linux/netdevice.h>
 #include <linux/phy.h>
 
+#include <asm/sh_eth.h>
+
 #define CARDNAME        "sh-eth"
 #define TX_TIMEOUT      (5*HZ)
 #define TX_RING_SIZE    64      /* Tx ring size */
@@ -143,10 +145,11 @@
 
 #else /* CONFIG_CPU_SUBTYPE_SH7763 */
 # define RX_OFFSET 2    /* skb offset */
+#ifndef CONFIG_CPU_SUBTYPE_SH7619
 /* Chip base address */
 # define SH_TSU_ADDR  0xA7000804
 # define ARSTR            0xA7000800
-
+#endif
 /* Chip Registers */
 /* E-DMAC */
 # define EDMR   0x0000
@@ -384,7 +387,11 @@ enum FCFTR_BIT {
         FCFTR_RFD1 = 0x00000002, FCFTR_RFD0 = 0x00000001,
 };
 #define FIFO_F_D_RFF    (FCFTR_RFF2|FCFTR_RFF1|FCFTR_RFF0)
+#ifndef CONFIG_CPU_SUBTYPE_SH7619
 #define FIFO_F_D_RFD    (FCFTR_RFD2|FCFTR_RFD1|FCFTR_RFD0)
+#else
+#define FIFO_F_D_RFD    (FCFTR_RFD0)
+#endif
 
 /* Transfer descriptor bit */
 enum TD_STS_BIT {
@@ -414,8 +421,10 @@ enum FELIC_MODE_BIT {
 #ifdef CONFIG_CPU_SUBTYPE_SH7763
 #define ECMR_CHG_DM     (ECMR_TRCCM | ECMR_RZPF | ECMR_ZPF |\
                         ECMR_PFR | ECMR_RXF | ECMR_TXF | ECMR_MCT)
+#elif CONFIG_CPU_SUBTYPE_SH7619
+#define ECMR_CHG_DM     (ECMR_ZPF | ECMR_PFR | ECMR_RXF | ECMR_TXF)
 #else
-#define ECMR_CHG_DM     (ECMR_ZPF | ECMR_PFR ECMR_RXF | ECMR_TXF | ECMR_MCT)
+#define ECMR_CHG_DM     (ECMR_ZPF | ECMR_PFR | ECMR_RXF | ECMR_TXF | ECMR_MCT)
 #endif
 
 /* ECSR */
@@ -485,7 +494,11 @@ enum RPADIR_BIT {
 
 /* FDR */
 enum FIFO_SIZE_BIT {
+#ifndef CONFIG_CPU_SUBTYPE_SH7619
         FIFO_SIZE_T = 0x00000700, FIFO_SIZE_R = 0x00000007,
+#else
+        FIFO_SIZE_T = 0x00000100, FIFO_SIZE_R = 0x00000001,
+#endif
 };
 enum phy_offsets {
         PHY_CTRL = 0, PHY_STAT = 1, PHY_IDT1 = 2, PHY_IDT2 = 3,
@@ -601,7 +614,7 @@ struct sh_eth_txdesc {
 #endif
         u32 addr;               /* TD2 */
         u32 pad1;               /* padding data */
-};
+} __attribute__((aligned(2), packed));
 
 /*
  * The sh ether Rx buffer descriptors.
@@ -618,7 +631,7 @@ struct sh_eth_rxdesc {
 #endif
         u32 addr;               /* RD2 */
         u32 pad0;               /* padding data */
-};
+} __attribute__((aligned(2), packed));
 
 struct sh_eth_private {
         dma_addr_t rx_desc_dma;
@@ -633,6 +646,7 @@ struct sh_eth_private {
         u32 cur_rx, dirty_rx;   /* Producer/consumer ring indices */
         u32 cur_tx, dirty_tx;
         u32 rx_buf_sz;          /* Based on MTU+slack. */
+        int edmac_endian;
         /* MII transceiver section. */
         u32 phy_id;                                     /* PHY ID */
         struct mii_bus *mii_bus;        /* MDIO bus control */