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net: xilinx: axi_emaclite: Use shared MDIO bus support for axi emaclite driver

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CONFIG_DM_ETH_PHY enables support to utilize generic ethernet phy
framework. Though if ethernet PHY node is in other ethernet node, it
will use shared MDIO to access the PHY of other ethernet. Move ethernet
print info statement from plat function to probe function, as phyaddr is
not enumerated when CONFIG_DM_ETH_PHY is enabled.

Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Acked-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Link: https://lore.kernel.org/r/93e11ccca56b6e52b2dcc283d08d5042537f828f.1652181968.git.michal.simek@amd.com
This commit is contained in:
T Karthik Reddy 2022-05-10 13:26:10 +02:00 committed by Michal Simek
parent 935e3625ce
commit 8faeb023e9
1 changed files with 28 additions and 15 deletions
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43
drivers/net/xilinx_emaclite.c
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@ -22,6 +22,7 @@
#include <linux/errno.h>
#include <linux/kernel.h>
#include <asm/io.h>
#include <eth_phy.h>
DECLARE_GLOBAL_DATA_PTR;
@ -564,14 +565,27 @@ static int emaclite_probe(struct udevice *dev)
struct xemaclite *emaclite = dev_get_priv(dev);
int ret;
emaclite->bus = mdio_alloc();
emaclite->bus->read = emaclite_miiphy_read;
emaclite->bus->write = emaclite_miiphy_write;
emaclite->bus->priv = emaclite;
if (IS_ENABLED(CONFIG_DM_ETH_PHY))
emaclite->bus = eth_phy_get_mdio_bus(dev);
ret = mdio_register_seq(emaclite->bus, dev_seq(dev));
if (ret)
return ret;
if (!emaclite->bus) {
emaclite->bus = mdio_alloc();
emaclite->bus->read = emaclite_miiphy_read;
emaclite->bus->write = emaclite_miiphy_write;
emaclite->bus->priv = emaclite;
ret = mdio_register_seq(emaclite->bus, dev_seq(dev));
if (ret)
return ret;
}
if (IS_ENABLED(CONFIG_DM_ETH_PHY)) {
eth_phy_set_mdio_bus(dev, emaclite->bus);
emaclite->phyaddr = eth_phy_get_addr(dev);
}
printf("EMACLITE: %lx, phyaddr %d, %d/%d\n", (ulong)emaclite->regs,
emaclite->phyaddr, emaclite->txpp, emaclite->rxpp);
return 0;
}
@ -606,20 +620,19 @@ static int emaclite_of_to_plat(struct udevice *dev)
emaclite->phyaddr = -1;
offset = fdtdec_lookup_phandle(gd->fdt_blob, dev_of_offset(dev),
"phy-handle");
if (offset > 0)
emaclite->phyaddr = fdtdec_get_int(gd->fdt_blob, offset,
"reg", -1);
if (!(IS_ENABLED(CONFIG_DM_ETH_PHY))) {
offset = fdtdec_lookup_phandle(gd->fdt_blob, dev_of_offset(dev),
"phy-handle");
if (offset > 0)
emaclite->phyaddr = fdtdec_get_int(gd->fdt_blob,
offset, "reg", -1);
}
emaclite->txpp = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
"xlnx,tx-ping-pong", 0);
emaclite->rxpp = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
"xlnx,rx-ping-pong", 0);
printf("EMACLITE: %lx, phyaddr %d, %d/%d\n", (ulong)emaclite->regs,
emaclite->phyaddr, emaclite->txpp, emaclite->rxpp);
return 0;
}