[PATCH 11/12] net: ks8851: Add DM support

Marek Vasut
2020-03-25T18:45:00Z

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>
---
drivers/net/ks8851_mll.c | 103 +++++++++++++++++++++++++++++++++++++++
1 file changed, 103 insertions(+)

diff --git a/drivers/net/ks8851_mll.c b/drivers/net/ks8851_mll.c
index 5a566d1c66..279cf71332 100644
--- a/drivers/net/ks8851_mll.c
+++ b/drivers/net/ks8851_mll.c
@@ -26,7 +26,9 @@
* @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;
@@ -500,6 +502,7 @@ 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);
@@ -569,3 +572,103 @@ 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
--
2.25.1