]> git.ipfire.org Git - people/ms/u-boot.git/blobdiff - drivers/net/designware.c
net: designware: Make driver independent from DM_GPIO again
[people/ms/u-boot.git] / drivers / net / designware.c
index a6c39c39ffaaee82f40f31dbf6c9ada59b3ce745..8ba72e30b1de4305652483193e606680ea432090 100644 (file)
 
 DECLARE_GLOBAL_DATA_PTR;
 
-#if !defined(CONFIG_PHYLIB)
-# error "DesignWare Ether MAC requires PHYLIB - missing CONFIG_PHYLIB"
-#endif
-
 static int dw_mdio_read(struct mii_dev *bus, int addr, int devad, int reg)
 {
+#ifdef CONFIG_DM_ETH
+       struct dw_eth_dev *priv = dev_get_priv((struct udevice *)bus->priv);
+       struct eth_mac_regs *mac_p = priv->mac_regs_p;
+#else
        struct eth_mac_regs *mac_p = bus->priv;
+#endif
        ulong start;
        u16 miiaddr;
        int timeout = CONFIG_MDIO_TIMEOUT;
@@ -51,7 +52,12 @@ static int dw_mdio_read(struct mii_dev *bus, int addr, int devad, int reg)
 static int dw_mdio_write(struct mii_dev *bus, int addr, int devad, int reg,
                        u16 val)
 {
+#ifdef CONFIG_DM_ETH
+       struct dw_eth_dev *priv = dev_get_priv((struct udevice *)bus->priv);
+       struct eth_mac_regs *mac_p = priv->mac_regs_p;
+#else
        struct eth_mac_regs *mac_p = bus->priv;
+#endif
        ulong start;
        u16 miiaddr;
        int ret = -ETIMEDOUT, timeout = CONFIG_MDIO_TIMEOUT;
@@ -74,7 +80,41 @@ static int dw_mdio_write(struct mii_dev *bus, int addr, int devad, int reg,
        return ret;
 }
 
-static int dw_mdio_init(const char *name, struct eth_mac_regs *mac_regs_p)
+#if defined(CONFIG_DM_ETH) && defined(CONFIG_DM_GPIO)
+static int dw_mdio_reset(struct mii_dev *bus)
+{
+       struct udevice *dev = bus->priv;
+       struct dw_eth_dev *priv = dev_get_priv(dev);
+       struct dw_eth_pdata *pdata = dev_get_platdata(dev);
+       int ret;
+
+       if (!dm_gpio_is_valid(&priv->reset_gpio))
+               return 0;
+
+       /* reset the phy */
+       ret = dm_gpio_set_value(&priv->reset_gpio, 0);
+       if (ret)
+               return ret;
+
+       udelay(pdata->reset_delays[0]);
+
+       ret = dm_gpio_set_value(&priv->reset_gpio, 1);
+       if (ret)
+               return ret;
+
+       udelay(pdata->reset_delays[1]);
+
+       ret = dm_gpio_set_value(&priv->reset_gpio, 0);
+       if (ret)
+               return ret;
+
+       udelay(pdata->reset_delays[2]);
+
+       return 0;
+}
+#endif
+
+static int dw_mdio_init(const char *name, void *priv)
 {
        struct mii_dev *bus = mdio_alloc();
 
@@ -85,9 +125,12 @@ static int dw_mdio_init(const char *name, struct eth_mac_regs *mac_regs_p)
 
        bus->read = dw_mdio_read;
        bus->write = dw_mdio_write;
-       snprintf(bus->name, sizeof(bus->name), name);
+       snprintf(bus->name, sizeof(bus->name), "%s", name);
+#if defined(CONFIG_DM_ETH) && defined(CONFIG_DM_GPIO)
+       bus->reset = dw_mdio_reset;
+#endif
 
-       bus->priv = (void *)mac_regs_p;
+       bus->priv = priv;
 
        return mdio_register(bus);
 }
@@ -102,13 +145,13 @@ static void tx_descs_init(struct dw_eth_dev *priv)
 
        for (idx = 0; idx < CONFIG_TX_DESCR_NUM; idx++) {
                desc_p = &desc_table_p[idx];
-               desc_p->dmamac_addr = &txbuffs[idx * CONFIG_ETH_BUFSIZE];
-               desc_p->dmamac_next = &desc_table_p[idx + 1];
+               desc_p->dmamac_addr = (ulong)&txbuffs[idx * CONFIG_ETH_BUFSIZE];
+               desc_p->dmamac_next = (ulong)&desc_table_p[idx + 1];
 
 #if defined(CONFIG_DW_ALTDESCRIPTOR)
                desc_p->txrx_status &= ~(DESC_TXSTS_TXINT | DESC_TXSTS_TXLAST |
-                               DESC_TXSTS_TXFIRST | DESC_TXSTS_TXCRCDIS | \
-                               DESC_TXSTS_TXCHECKINSCTRL | \
+                               DESC_TXSTS_TXFIRST | DESC_TXSTS_TXCRCDIS |
+                               DESC_TXSTS_TXCHECKINSCTRL |
                                DESC_TXSTS_TXRINGEND | DESC_TXSTS_TXPADDIS);
 
                desc_p->txrx_status |= DESC_TXSTS_TXCHAIN;
@@ -121,11 +164,11 @@ static void tx_descs_init(struct dw_eth_dev *priv)
        }
 
        /* Correcting the last pointer of the chain */
-       desc_p->dmamac_next = &desc_table_p[0];
+       desc_p->dmamac_next = (ulong)&desc_table_p[0];
 
        /* Flush all Tx buffer descriptors at once */
-       flush_dcache_range((unsigned int)priv->tx_mac_descrtable,
-                          (unsigned int)priv->tx_mac_descrtable +
+       flush_dcache_range((ulong)priv->tx_mac_descrtable,
+                          (ulong)priv->tx_mac_descrtable +
                           sizeof(priv->tx_mac_descrtable));
 
        writel((ulong)&desc_table_p[0], &dma_p->txdesclistaddr);
@@ -146,27 +189,26 @@ static void rx_descs_init(struct dw_eth_dev *priv)
         * Otherwise there's a chance to get some of them flushed in RAM when
         * GMAC is already pushing data to RAM via DMA. This way incoming from
         * GMAC data will be corrupted. */
-       flush_dcache_range((unsigned int)rxbuffs, (unsigned int)rxbuffs +
-                          RX_TOTAL_BUFSIZE);
+       flush_dcache_range((ulong)rxbuffs, (ulong)rxbuffs + RX_TOTAL_BUFSIZE);
 
        for (idx = 0; idx < CONFIG_RX_DESCR_NUM; idx++) {
                desc_p = &desc_table_p[idx];
-               desc_p->dmamac_addr = &rxbuffs[idx * CONFIG_ETH_BUFSIZE];
-               desc_p->dmamac_next = &desc_table_p[idx + 1];
+               desc_p->dmamac_addr = (ulong)&rxbuffs[idx * CONFIG_ETH_BUFSIZE];
+               desc_p->dmamac_next = (ulong)&desc_table_p[idx + 1];
 
                desc_p->dmamac_cntl =
-                       (MAC_MAX_FRAME_SZ & DESC_RXCTRL_SIZE1MASK) | \
+                       (MAC_MAX_FRAME_SZ & DESC_RXCTRL_SIZE1MASK) |
                                      DESC_RXCTRL_RXCHAIN;
 
                desc_p->txrx_status = DESC_RXSTS_OWNBYDMA;
        }
 
        /* Correcting the last pointer of the chain */
-       desc_p->dmamac_next = &desc_table_p[0];
+       desc_p->dmamac_next = (ulong)&desc_table_p[0];
 
        /* Flush all Rx buffer descriptors at once */
-       flush_dcache_range((unsigned int)priv->rx_mac_descrtable,
-                          (unsigned int)priv->rx_mac_descrtable +
+       flush_dcache_range((ulong)priv->rx_mac_descrtable,
+                          (ulong)priv->rx_mac_descrtable +
                           sizeof(priv->rx_mac_descrtable));
 
        writel((ulong)&desc_table_p[0], &dma_p->rxdesclistaddr);
@@ -200,6 +242,8 @@ static void dw_adjust_link(struct eth_mac_regs *mac_p,
 
        if (phydev->speed != 1000)
                conf |= MII_PORTSELECT;
+       else
+               conf &= ~MII_PORTSELECT;
 
        if (phydev->speed == 100)
                conf |= FES_100;
@@ -292,12 +336,11 @@ static int _dw_eth_send(struct dw_eth_dev *priv, void *packet, int length)
        struct eth_dma_regs *dma_p = priv->dma_regs_p;
        u32 desc_num = priv->tx_currdescnum;
        struct dmamacdescr *desc_p = &priv->tx_mac_descrtable[desc_num];
-       uint32_t desc_start = (uint32_t)desc_p;
-       uint32_t desc_end = desc_start +
+       ulong desc_start = (ulong)desc_p;
+       ulong desc_end = desc_start +
                roundup(sizeof(*desc_p), ARCH_DMA_MINALIGN);
-       uint32_t data_start = (uint32_t)desc_p->dmamac_addr;
-       uint32_t data_end = data_start +
-               roundup(length, ARCH_DMA_MINALIGN);
+       ulong data_start = desc_p->dmamac_addr;
+       ulong data_end = data_start + roundup(length, ARCH_DMA_MINALIGN);
        /*
         * Strictly we only need to invalidate the "txrx_status" field
         * for the following check, but on some platforms we cannot
@@ -314,21 +357,21 @@ static int _dw_eth_send(struct dw_eth_dev *priv, void *packet, int length)
                return -EPERM;
        }
 
-       memcpy(desc_p->dmamac_addr, packet, length);
+       memcpy((void *)data_start, packet, length);
 
        /* Flush data to be sent */
        flush_dcache_range(data_start, data_end);
 
 #if defined(CONFIG_DW_ALTDESCRIPTOR)
        desc_p->txrx_status |= DESC_TXSTS_TXFIRST | DESC_TXSTS_TXLAST;
-       desc_p->dmamac_cntl |= (length << DESC_TXCTRL_SIZE1SHFT) & \
+       desc_p->dmamac_cntl |= (length << DESC_TXCTRL_SIZE1SHFT) &
                               DESC_TXCTRL_SIZE1MASK;
 
        desc_p->txrx_status &= ~(DESC_TXSTS_MSK);
        desc_p->txrx_status |= DESC_TXSTS_OWNBYDMA;
 #else
-       desc_p->dmamac_cntl |= ((length << DESC_TXCTRL_SIZE1SHFT) & \
-                              DESC_TXCTRL_SIZE1MASK) | DESC_TXCTRL_TXLAST | \
+       desc_p->dmamac_cntl |= ((length << DESC_TXCTRL_SIZE1SHFT) &
+                              DESC_TXCTRL_SIZE1MASK) | DESC_TXCTRL_TXLAST |
                               DESC_TXCTRL_TXFIRST;
 
        desc_p->txrx_status = DESC_TXSTS_OWNBYDMA;
@@ -354,11 +397,11 @@ static int _dw_eth_recv(struct dw_eth_dev *priv, uchar **packetp)
        u32 status, desc_num = priv->rx_currdescnum;
        struct dmamacdescr *desc_p = &priv->rx_mac_descrtable[desc_num];
        int length = -EAGAIN;
-       uint32_t desc_start = (uint32_t)desc_p;
-       uint32_t desc_end = desc_start +
+       ulong desc_start = (ulong)desc_p;
+       ulong desc_end = desc_start +
                roundup(sizeof(*desc_p), ARCH_DMA_MINALIGN);
-       uint32_t data_start = (uint32_t)desc_p->dmamac_addr;
-       uint32_t data_end;
+       ulong data_start = desc_p->dmamac_addr;
+       ulong data_end;
 
        /* Invalidate entire buffer descriptor */
        invalidate_dcache_range(desc_start, desc_end);
@@ -368,13 +411,13 @@ static int _dw_eth_recv(struct dw_eth_dev *priv, uchar **packetp)
        /* Check  if the owner is the CPU */
        if (!(status & DESC_RXSTS_OWNBYDMA)) {
 
-               length = (status & DESC_RXSTS_FRMLENMSK) >> \
+               length = (status & DESC_RXSTS_FRMLENMSK) >>
                         DESC_RXSTS_FRMLENSHFT;
 
                /* Invalidate received data */
                data_end = data_start + roundup(length, ARCH_DMA_MINALIGN);
                invalidate_dcache_range(data_start, data_end);
-               *packetp = desc_p->dmamac_addr;
+               *packetp = (uchar *)(ulong)desc_p->dmamac_addr;
        }
 
        return length;
@@ -384,8 +427,8 @@ static int _dw_free_pkt(struct dw_eth_dev *priv)
 {
        u32 desc_num = priv->rx_currdescnum;
        struct dmamacdescr *desc_p = &priv->rx_mac_descrtable[desc_num];
-       uint32_t desc_start = (uint32_t)desc_p;
-       uint32_t desc_end = desc_start +
+       ulong desc_start = (ulong)desc_p;
+       ulong desc_end = desc_start +
                roundup(sizeof(*desc_p), ARCH_DMA_MINALIGN);
 
        /*
@@ -408,7 +451,7 @@ static int _dw_free_pkt(struct dw_eth_dev *priv)
 static int dw_phy_init(struct dw_eth_dev *priv, void *dev)
 {
        struct phy_device *phydev;
-       int mask = 0xffffffff;
+       int mask = 0xffffffff, ret;
 
 #ifdef CONFIG_PHY_ADDR
        mask = 1 << CONFIG_PHY_ADDR;
@@ -421,6 +464,11 @@ static int dw_phy_init(struct dw_eth_dev *priv, void *dev)
        phy_connect_dev(phydev, dev);
 
        phydev->supported &= PHY_GBIT_FEATURES;
+       if (priv->max_speed) {
+               ret = phy_set_supported(phydev, priv->max_speed);
+               if (ret)
+                       return ret;
+       }
        phydev->advertising = phydev->supported;
 
        priv->phydev = phydev;
@@ -485,6 +533,11 @@ int designware_initialize(ulong base_addr, u32 interface)
                return -ENOMEM;
        }
 
+       if ((phys_addr_t)priv + sizeof(*priv) > (1ULL << 32)) {
+               printf("designware: buffers are outside DMA memory\n");
+               return -EINVAL;
+       }
+
        memset(dev, 0, sizeof(struct eth_device));
        memset(priv, 0, sizeof(struct dw_eth_dev));
 
@@ -580,6 +633,7 @@ static int designware_eth_probe(struct udevice *dev)
        struct eth_pdata *pdata = dev_get_platdata(dev);
        struct dw_eth_dev *priv = dev_get_priv(dev);
        u32 iobase = pdata->iobase;
+       ulong ioaddr;
        int ret;
 
 #ifdef CONFIG_DM_PCI
@@ -588,11 +642,9 @@ static int designware_eth_probe(struct udevice *dev)
         * or via a PCI bridge, fill in platdata before we probe the hardware.
         */
        if (device_is_on_pci_bus(dev)) {
-               pci_dev_t bdf = pci_get_bdf(dev);
-
                dm_pci_read_config32(dev, PCI_BASE_ADDRESS_0, &iobase);
                iobase &= PCI_BASE_ADDRESS_MEM_MASK;
-               iobase = pci_mem_to_phys(bdf, iobase);
+               iobase = dm_pci_mem_to_phys(dev, iobase);
 
                pdata->iobase = iobase;
                pdata->phy_interface = PHY_INTERFACE_MODE_RMII;
@@ -600,11 +652,13 @@ static int designware_eth_probe(struct udevice *dev)
 #endif
 
        debug("%s, iobase=%x, priv=%p\n", __func__, iobase, priv);
-       priv->mac_regs_p = (struct eth_mac_regs *)iobase;
-       priv->dma_regs_p = (struct eth_dma_regs *)(iobase + DW_DMA_BASE_OFFSET);
+       ioaddr = iobase;
+       priv->mac_regs_p = (struct eth_mac_regs *)ioaddr;
+       priv->dma_regs_p = (struct eth_dma_regs *)(ioaddr + DW_DMA_BASE_OFFSET);
        priv->interface = pdata->phy_interface;
+       priv->max_speed = pdata->max_speed;
 
-       dw_mdio_init(dev->name, priv->mac_regs_p);
+       dw_mdio_init(dev->name, dev);
        priv->bus = miiphy_get_dev_by_name(dev->name);
 
        ret = dw_phy_init(priv, dev);
@@ -635,8 +689,17 @@ static const struct eth_ops designware_eth_ops = {
 
 static int designware_eth_ofdata_to_platdata(struct udevice *dev)
 {
-       struct eth_pdata *pdata = dev_get_platdata(dev);
+       struct dw_eth_pdata *dw_pdata = dev_get_platdata(dev);
+#ifdef CONFIG_DM_GPIO
+       struct dw_eth_dev *priv = dev_get_priv(dev);
+#endif
+       struct eth_pdata *pdata = &dw_pdata->eth_pdata;
        const char *phy_mode;
+       const fdt32_t *cell;
+#ifdef CONFIG_DM_GPIO
+       int reset_flags = GPIOD_IS_OUT;
+#endif
+       int ret = 0;
 
        pdata->iobase = dev_get_addr(dev);
        pdata->phy_interface = -1;
@@ -648,7 +711,27 @@ static int designware_eth_ofdata_to_platdata(struct udevice *dev)
                return -EINVAL;
        }
 
-       return 0;
+       pdata->max_speed = 0;
+       cell = fdt_getprop(gd->fdt_blob, dev->of_offset, "max-speed", NULL);
+       if (cell)
+               pdata->max_speed = fdt32_to_cpu(*cell);
+
+#ifdef CONFIG_DM_GPIO
+       if (fdtdec_get_bool(gd->fdt_blob, dev->of_offset,
+                           "snps,reset-active-low"))
+               reset_flags |= GPIOD_ACTIVE_LOW;
+
+       ret = gpio_request_by_name(dev, "snps,reset-gpio", 0,
+               &priv->reset_gpio, reset_flags);
+       if (ret == 0) {
+               ret = fdtdec_get_int_array(gd->fdt_blob, dev->of_offset,
+                       "snps,reset-delays-us", dw_pdata->reset_delays, 3);
+       } else if (ret == -ENOENT) {
+               ret = 0;
+       }
+#endif
+
+       return ret;
 }
 
 static const struct udevice_id designware_eth_ids[] = {
@@ -667,7 +750,7 @@ U_BOOT_DRIVER(eth_designware) = {
        .remove = designware_eth_remove,
        .ops    = &designware_eth_ops,
        .priv_auto_alloc_size = sizeof(struct dw_eth_dev),
-       .platdata_auto_alloc_size = sizeof(struct eth_pdata),
+       .platdata_auto_alloc_size = sizeof(struct dw_eth_pdata),
        .flags = DM_FLAG_ALLOC_PRIV_DMA,
 };