net: pcnet: Add DM support

With all the changes in place, add support for DM into the
pcnet driver.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>

diff --git a/drivers/net/pcnet.c b/drivers/net/pcnet.c
index 0a4cab820870166e09fa45ccd62c56ee44b1f0e8..8e3e3dbbceea027e6f14a352fd413937200d9bad 100644 (file)
--- a/drivers/net/pcnet.c
+++ b/drivers/net/pcnet.c
@@ -8,6 +8,7 @@
 
 #include <common.h>
 #include <cpu_func.h>
+#include <dm.h>
 #include <log.h>
 #include <malloc.h>
 #include <memalign.h>
@@ -82,9 +83,14 @@ struct pcnet_priv {
        /* Receive Buffer space */
        unsigned char rx_buf[RX_RING_SIZE][PKT_BUF_SZ + 4];
        struct pcnet_uncached_priv *uc;
+#ifdef CONFIG_DM_ETH
+       struct udevice *dev;
+       const char *name;
+#else
        pci_dev_t dev;
-       void __iomem *iobase;
        char *name;
+#endif
+       void __iomem *iobase;
        u8 *enetaddr;
        u16 status;
        int cur_rx;
@@ -136,7 +142,11 @@ static inline pci_addr_t pcnet_virt_to_mem(struct pcnet_priv *lp, void *addr)
 {
        void *virt_addr = addr;
 
+#ifdef CONFIG_DM_ETH
+       return dm_pci_virt_to_mem(lp->dev, virt_addr);
+#else
        return pci_virt_to_mem(lp->dev, virt_addr);
+#endif
 }
 
 static struct pci_device_id supported[] = {
@@ -447,6 +457,7 @@ static void pcnet_halt_common(struct pcnet_priv *lp)
                printf("%s: TIMEOUT: controller reset failed\n", lp->name);
 }
 
+#ifndef CONFIG_DM_ETH
 static int pcnet_init(struct eth_device *dev, bd_t *bis)
 {
        struct pcnet_priv *lp = dev->priv;
@@ -571,3 +582,117 @@ int pcnet_initialize(bd_t *bis)
 
        return dev_nr;
 }
+#else /* DM_ETH */
+static int pcnet_start(struct udevice *dev)
+{
+       struct eth_pdata *plat = dev_get_platdata(dev);
+       struct pcnet_priv *priv = dev_get_priv(dev);
+
+       memcpy(priv->enetaddr, plat->enetaddr, sizeof(plat->enetaddr));
+
+       return pcnet_init_common(priv);
+}
+
+static void pcnet_stop(struct udevice *dev)
+{
+       struct pcnet_priv *priv = dev_get_priv(dev);
+
+       pcnet_halt_common(priv);
+}
+
+static int pcnet_send(struct udevice *dev, void *packet, int length)
+{
+       struct pcnet_priv *priv = dev_get_priv(dev);
+       int ret;
+
+       ret = pcnet_send_common(priv, packet, length);
+
+       return ret ? 0 : -ETIMEDOUT;
+}
+
+static int pcnet_recv(struct udevice *dev, int flags, uchar **packetp)
+{
+       struct pcnet_priv *priv = dev_get_priv(dev);
+
+       return pcnet_recv_common(priv, packetp);
+}
+
+static int pcnet_free_pkt(struct udevice *dev, uchar *packet, int length)
+{
+       struct pcnet_priv *priv = dev_get_priv(dev);
+
+       pcnet_free_pkt_common(priv, length);
+
+       return 0;
+}
+
+static int pcnet_bind(struct udevice *dev)
+{
+       static int card_number;
+       char name[16];
+
+       sprintf(name, "pcnet#%u", card_number++);
+
+       return device_set_name(dev, name);
+}
+
+static int pcnet_probe(struct udevice *dev)
+{
+       struct eth_pdata *plat = dev_get_platdata(dev);
+       struct pcnet_priv *lp = dev_get_priv(dev);
+       u16 command, status;
+       u32 iobase;
+       int ret;
+
+       dm_pci_read_config32(dev, PCI_BASE_ADDRESS_1, &iobase);
+       iobase &= ~0xf;
+
+       lp->uc = map_physmem((phys_addr_t)&lp->ucp,
+                            sizeof(lp->ucp), MAP_NOCACHE);
+       lp->dev = dev;
+       lp->name = dev->name;
+       lp->enetaddr = plat->enetaddr;
+       lp->iobase = (void *)dm_pci_mem_to_phys(dev, iobase);
+
+       flush_dcache_range((unsigned long)lp,
+                          (unsigned long)lp + sizeof(*lp));
+
+       command = PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER;
+       dm_pci_write_config16(dev, PCI_COMMAND, command);
+       dm_pci_read_config16(dev, PCI_COMMAND, &status);
+       if ((status & command) != command) {
+               printf("%s: Couldn't enable IO access or Bus Mastering\n",
+                      lp->name);
+               return -EINVAL;
+       }
+
+       dm_pci_write_config8(dev, PCI_LATENCY_TIMER, 0x20);
+
+       ret = pcnet_probe_common(lp);
+       if (ret)
+               return ret;
+
+       return 0;
+}
+
+static const struct eth_ops pcnet_ops = {
+       .start          = pcnet_start,
+       .send           = pcnet_send,
+       .recv           = pcnet_recv,
+       .stop           = pcnet_stop,
+       .free_pkt       = pcnet_free_pkt,
+};
+
+U_BOOT_DRIVER(eth_pcnet) = {
+       .name   = "eth_pcnet",
+       .id     = UCLASS_ETH,
+       .bind   = pcnet_bind,
+       .probe  = pcnet_probe,
+       .ops    = &pcnet_ops,
+       .priv_auto_alloc_size = sizeof(struct pcnet_priv),
+       .platdata_auto_alloc_size = sizeof(struct eth_pdata),
+       .flags  = DM_UC_FLAG_ALLOC_PRIV_DMA,
+};
+
+U_BOOT_PCI_DEVICE(eth_pcnet, supported);
+#endif