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bgmac: register fixed PHY for ARM BCM470X / BCM5301X chipsets

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On ARM SoCs with bgmac Ethernet hardware we don't have any normal PHY.
There is always a switch attached but it's not even controlled over MDIO
like in case of MIPS devices.
We need a fixed PHY to be able to send/receive packets from the switch.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Rafał Miłecki 2015-03-20 23:14:31 +01:00 committed by David S. Miller
parent df814d96ed
commit c25b23b8a3
1 changed files with 34 additions and 0 deletions
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34
drivers/net/ethernet/broadcom/bgmac.c
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@ -14,6 +14,7 @@
#include <linux/etherdevice.h>
#include <linux/mii.h>
#include <linux/phy.h>
#include <linux/phy_fixed.h>
#include <linux/interrupt.h>
#include <linux/dma-mapping.h>
#include <bcm47xx_nvram.h>
@ -1330,13 +1331,46 @@ static void bgmac_adjust_link(struct net_device *net_dev)
}
}
static int bgmac_fixed_phy_register(struct bgmac *bgmac)
{
struct fixed_phy_status fphy_status = {
.link = 1,
.speed = SPEED_1000,
.duplex = DUPLEX_FULL,
};
struct phy_device *phy_dev;
int err;
phy_dev = fixed_phy_register(PHY_POLL, &fphy_status, NULL);
if (!phy_dev || IS_ERR(phy_dev)) {
bgmac_err(bgmac, "Failed to register fixed PHY device\n");
return -ENODEV;
}
err = phy_connect_direct(bgmac->net_dev, phy_dev, bgmac_adjust_link,
PHY_INTERFACE_MODE_MII);
if (err) {
bgmac_err(bgmac, "Connecting PHY failed\n");
return err;
}
bgmac->phy_dev = phy_dev;
return err;
}
static int bgmac_mii_register(struct bgmac *bgmac)
{
struct bcma_chipinfo *ci = &bgmac->core->bus->chipinfo;
struct mii_bus *mii_bus;
struct phy_device *phy_dev;
char bus_id[MII_BUS_ID_SIZE + 3];
int i, err = 0;
if (ci->id == BCMA_CHIP_ID_BCM4707 ||
ci->id == BCMA_CHIP_ID_BCM53018)
return bgmac_fixed_phy_register(bgmac);
mii_bus = mdiobus_alloc();
if (!mii_bus)
return -ENOMEM;