net: ks8851: Add DM support

Add support for U-Boot DM and DT probing.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Eugen Hristev <eugen.hristev@microchip.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>

diff --git a/drivers/net/ks8851_mll.c b/drivers/net/ks8851_mll.c
index 2424e42..3ff173a 100644 (file)
--- a/drivers/net/ks8851_mll.c
+++ b/drivers/net/ks8851_mll.c
@@ -28,7 +28,9 @@
  * @extra_byte : number of extra byte prepended rx pkt.
  */
 struct ks_net {
+#ifndef CONFIG_DM_ETH
        struct eth_device       dev;
+#endif
        phys_addr_t             iobase;
        int                     bus_width;
        u16                     sharedbus;
@@ -502,6 +504,7 @@ static void ks8851_mll_write_hwaddr_common(struct ks_net *ks, u8 enetaddr[6])
        ks_wrreg16(ks, KS_MARL, addrl);
 }
 
+#ifndef CONFIG_DM_ETH
 static int ks8851_mll_init(struct eth_device *dev, bd_t *bd)
 {
        struct ks_net *ks = container_of(dev, struct ks_net, dev);
@@ -571,3 +574,103 @@ int ks8851_mll_initialize(u8 dev_num, int base_addr)
 
        return 0;
 }
+#else  /* ifdef CONFIG_DM_ETH */
+static int ks8851_start(struct udevice *dev)
+{
+       struct ks_net *ks = dev_get_priv(dev);
+
+       return ks8851_mll_init_common(ks);
+}
+
+static void ks8851_stop(struct udevice *dev)
+{
+       struct ks_net *ks = dev_get_priv(dev);
+
+       ks8851_mll_halt_common(ks);
+}
+
+static int ks8851_send(struct udevice *dev, void *packet, int length)
+{
+       struct ks_net *ks = dev_get_priv(dev);
+       int ret;
+
+       ret = ks8851_mll_send_common(ks, packet, length);
+
+       return ret ? 0 : -ETIMEDOUT;
+}
+
+static int ks8851_recv(struct udevice *dev, int flags, uchar **packetp)
+{
+       struct ks_net *ks = dev_get_priv(dev);
+       uchar *data = net_rx_packets[0];
+       int ret;
+
+       ret = ks8851_mll_recv_common(ks, data);
+       if (ret)
+               *packetp = (void *)data;
+
+       return ret ? ret : -EAGAIN;
+}
+
+static int ks8851_write_hwaddr(struct udevice *dev)
+{
+       struct ks_net *ks = dev_get_priv(dev);
+       struct eth_pdata *pdata = dev_get_platdata(dev);
+
+       ks8851_mll_write_hwaddr_common(ks, pdata->enetaddr);
+
+       return 0;
+}
+
+static int ks8851_bind(struct udevice *dev)
+{
+       return device_set_name(dev, dev->name);
+}
+
+static int ks8851_probe(struct udevice *dev)
+{
+       struct ks_net *ks = dev_get_priv(dev);
+
+       /* Try to detect chip. Will fail if not present. */
+       ks8851_mll_detect_chip(ks);
+
+       return 0;
+}
+
+static int ks8851_ofdata_to_platdata(struct udevice *dev)
+{
+       struct ks_net *ks = dev_get_priv(dev);
+       struct eth_pdata *pdata = dev_get_platdata(dev);
+
+       pdata->iobase = devfdt_get_addr(dev);
+       ks->iobase = pdata->iobase;
+
+       return 0;
+}
+
+static const struct eth_ops ks8851_ops = {
+       .start          = ks8851_start,
+       .stop           = ks8851_stop,
+       .send           = ks8851_send,
+       .recv           = ks8851_recv,
+       .write_hwaddr   = ks8851_write_hwaddr,
+};
+
+static const struct udevice_id ks8851_ids[] = {
+       { .compatible = "micrel,ks8851-mll" },
+       { }
+};
+
+U_BOOT_DRIVER(ks8851) = {
+       .name           = "eth_ks8851",
+       .id             = UCLASS_ETH,
+       .of_match       = ks8851_ids,
+       .bind           = ks8851_bind,
+       .ofdata_to_platdata = ks8851_ofdata_to_platdata,
+       .probe          = ks8851_probe,
+       .ops            = &ks8851_ops,
+       .priv_auto_alloc_size = sizeof(struct ks_net),
+       .platdata_auto_alloc_size = sizeof(struct eth_pdata),
+       .flags          = DM_FLAG_ALLOC_PRIV_DMA,
+};
+#endif