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net: ks8851: Add DM support

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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>
This commit is contained in:
Marek Vasut 2020-03-25 18:00:35 +01:00
parent 9c9f3fc162
commit 1d476de7c8
1 changed files with 103 additions and 0 deletions
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103
drivers/net/ks8851_mll.c
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@ -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