mirror of
https://github.com/adulau/aha.git
synced 2024-12-27 19:26:25 +00:00
net: Rework gianfar driver to use of_mdio infrastructure.
This patch simplifies the driver by making use of more common code. Tested on Freescale MPC8349emitxgp eval board Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Andy Fleming <afleming@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
324931ba21
commit
fe192a4911
2 changed files with 39 additions and 74 deletions
|
@ -75,6 +75,7 @@
|
|||
#include <linux/if_vlan.h>
|
||||
#include <linux/spinlock.h>
|
||||
#include <linux/mm.h>
|
||||
#include <linux/of_mdio.h>
|
||||
#include <linux/of_platform.h>
|
||||
#include <linux/ip.h>
|
||||
#include <linux/tcp.h>
|
||||
|
@ -168,17 +169,13 @@ static inline int gfar_uses_fcb(struct gfar_private *priv)
|
|||
|
||||
static int gfar_of_init(struct net_device *dev)
|
||||
{
|
||||
struct device_node *phy, *mdio;
|
||||
const unsigned int *id;
|
||||
const char *model;
|
||||
const char *ctype;
|
||||
const void *mac_addr;
|
||||
const phandle *ph;
|
||||
u64 addr, size;
|
||||
int err = 0;
|
||||
struct gfar_private *priv = netdev_priv(dev);
|
||||
struct device_node *np = priv->node;
|
||||
char bus_name[MII_BUS_ID_SIZE];
|
||||
const u32 *stash;
|
||||
const u32 *stash_len;
|
||||
const u32 *stash_idx;
|
||||
|
@ -264,8 +261,8 @@ static int gfar_of_init(struct net_device *dev)
|
|||
if (of_get_property(np, "fsl,magic-packet", NULL))
|
||||
priv->device_flags |= FSL_GIANFAR_DEV_HAS_MAGIC_PACKET;
|
||||
|
||||
ph = of_get_property(np, "phy-handle", NULL);
|
||||
if (ph == NULL) {
|
||||
priv->phy_node = of_parse_phandle(np, "phy-handle", 0);
|
||||
if (!priv->phy_node) {
|
||||
u32 *fixed_link;
|
||||
|
||||
fixed_link = (u32 *)of_get_property(np, "fixed-link", NULL);
|
||||
|
@ -273,57 +270,10 @@ static int gfar_of_init(struct net_device *dev)
|
|||
err = -ENODEV;
|
||||
goto err_out;
|
||||
}
|
||||
|
||||
snprintf(priv->phy_bus_id, sizeof(priv->phy_bus_id),
|
||||
PHY_ID_FMT, "0", fixed_link[0]);
|
||||
} else {
|
||||
phy = of_find_node_by_phandle(*ph);
|
||||
|
||||
if (phy == NULL) {
|
||||
err = -ENODEV;
|
||||
goto err_out;
|
||||
}
|
||||
|
||||
mdio = of_get_parent(phy);
|
||||
|
||||
id = of_get_property(phy, "reg", NULL);
|
||||
|
||||
of_node_put(phy);
|
||||
|
||||
fsl_pq_mdio_bus_name(bus_name, mdio);
|
||||
of_node_put(mdio);
|
||||
snprintf(priv->phy_bus_id, sizeof(priv->phy_bus_id), "%s:%02x",
|
||||
bus_name, *id);
|
||||
}
|
||||
|
||||
/* Find the TBI PHY. If it's not there, we don't support SGMII */
|
||||
ph = of_get_property(np, "tbi-handle", NULL);
|
||||
if (ph) {
|
||||
struct device_node *tbi = of_find_node_by_phandle(*ph);
|
||||
struct of_device *ofdev;
|
||||
struct mii_bus *bus;
|
||||
|
||||
if (!tbi)
|
||||
return 0;
|
||||
|
||||
mdio = of_get_parent(tbi);
|
||||
if (!mdio)
|
||||
return 0;
|
||||
|
||||
ofdev = of_find_device_by_node(mdio);
|
||||
|
||||
of_node_put(mdio);
|
||||
|
||||
id = of_get_property(tbi, "reg", NULL);
|
||||
if (!id)
|
||||
return 0;
|
||||
|
||||
of_node_put(tbi);
|
||||
|
||||
bus = dev_get_drvdata(&ofdev->dev);
|
||||
|
||||
priv->tbiphy = bus->phy_map[*id];
|
||||
}
|
||||
priv->tbi_node = of_parse_phandle(np, "tbi-handle", 0);
|
||||
|
||||
return 0;
|
||||
|
||||
|
@ -529,6 +479,10 @@ static int gfar_probe(struct of_device *ofdev,
|
|||
register_fail:
|
||||
iounmap(priv->regs);
|
||||
regs_fail:
|
||||
if (priv->phy_node)
|
||||
of_node_put(priv->phy_node);
|
||||
if (priv->tbi_node)
|
||||
of_node_put(priv->tbi_node);
|
||||
free_netdev(dev);
|
||||
return err;
|
||||
}
|
||||
|
@ -537,6 +491,11 @@ static int gfar_remove(struct of_device *ofdev)
|
|||
{
|
||||
struct gfar_private *priv = dev_get_drvdata(&ofdev->dev);
|
||||
|
||||
if (priv->phy_node)
|
||||
of_node_put(priv->phy_node);
|
||||
if (priv->tbi_node)
|
||||
of_node_put(priv->tbi_node);
|
||||
|
||||
dev_set_drvdata(&ofdev->dev, NULL);
|
||||
|
||||
iounmap(priv->regs);
|
||||
|
@ -690,7 +649,6 @@ static int init_phy(struct net_device *dev)
|
|||
uint gigabit_support =
|
||||
priv->device_flags & FSL_GIANFAR_DEV_HAS_GIGABIT ?
|
||||
SUPPORTED_1000baseT_Full : 0;
|
||||
struct phy_device *phydev;
|
||||
phy_interface_t interface;
|
||||
|
||||
priv->oldlink = 0;
|
||||
|
@ -699,21 +657,21 @@ static int init_phy(struct net_device *dev)
|
|||
|
||||
interface = gfar_get_interface(dev);
|
||||
|
||||
phydev = phy_connect(dev, priv->phy_bus_id, &adjust_link, 0, interface);
|
||||
if (priv->phy_node) {
|
||||
priv->phydev = of_phy_connect(dev, priv->phy_node, &adjust_link,
|
||||
0, interface);
|
||||
if (!priv->phydev) {
|
||||
dev_err(&dev->dev, "error: Could not attach to PHY\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
}
|
||||
|
||||
if (interface == PHY_INTERFACE_MODE_SGMII)
|
||||
gfar_configure_serdes(dev);
|
||||
|
||||
if (IS_ERR(phydev)) {
|
||||
printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name);
|
||||
return PTR_ERR(phydev);
|
||||
}
|
||||
|
||||
/* Remove any features not supported by the controller */
|
||||
phydev->supported &= (GFAR_SUPPORTED | gigabit_support);
|
||||
phydev->advertising = phydev->supported;
|
||||
|
||||
priv->phydev = phydev;
|
||||
priv->phydev->supported &= (GFAR_SUPPORTED | gigabit_support);
|
||||
priv->phydev->advertising = priv->phydev->supported;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
@ -730,10 +688,17 @@ static int init_phy(struct net_device *dev)
|
|||
static void gfar_configure_serdes(struct net_device *dev)
|
||||
{
|
||||
struct gfar_private *priv = netdev_priv(dev);
|
||||
struct phy_device *tbiphy;
|
||||
|
||||
if (!priv->tbiphy) {
|
||||
printk(KERN_WARNING "SGMII mode requires that the device "
|
||||
"tree specify a tbi-handle\n");
|
||||
if (!priv->tbi_node) {
|
||||
dev_warn(&dev->dev, "error: SGMII mode requires that the "
|
||||
"device tree specify a tbi-handle\n");
|
||||
return;
|
||||
}
|
||||
|
||||
tbiphy = of_phy_find_device(priv->tbi_node);
|
||||
if (!tbiphy) {
|
||||
dev_err(&dev->dev, "error: Could not get TBI device\n");
|
||||
return;
|
||||
}
|
||||
|
||||
|
@ -743,17 +708,17 @@ static void gfar_configure_serdes(struct net_device *dev)
|
|||
* everything for us? Resetting it takes the link down and requires
|
||||
* several seconds for it to come back.
|
||||
*/
|
||||
if (phy_read(priv->tbiphy, MII_BMSR) & BMSR_LSTATUS)
|
||||
if (phy_read(tbiphy, MII_BMSR) & BMSR_LSTATUS)
|
||||
return;
|
||||
|
||||
/* Single clk mode, mii mode off(for serdes communication) */
|
||||
phy_write(priv->tbiphy, MII_TBICON, TBICON_CLK_SELECT);
|
||||
phy_write(tbiphy, MII_TBICON, TBICON_CLK_SELECT);
|
||||
|
||||
phy_write(priv->tbiphy, MII_ADVERTISE,
|
||||
phy_write(tbiphy, MII_ADVERTISE,
|
||||
ADVERTISE_1000XFULL | ADVERTISE_1000XPAUSE |
|
||||
ADVERTISE_1000XPSE_ASYM);
|
||||
|
||||
phy_write(priv->tbiphy, MII_BMCR, BMCR_ANENABLE |
|
||||
phy_write(tbiphy, MII_BMCR, BMCR_ANENABLE |
|
||||
BMCR_ANRESTART | BMCR_FULLDPLX | BMCR_SPEED1000);
|
||||
}
|
||||
|
||||
|
|
|
@ -779,7 +779,8 @@ struct gfar_private {
|
|||
spinlock_t bflock;
|
||||
|
||||
phy_interface_t interface;
|
||||
char phy_bus_id[BUS_ID_SIZE];
|
||||
struct device_node *phy_node;
|
||||
struct device_node *tbi_node;
|
||||
u32 device_flags;
|
||||
unsigned char rx_csum_enable:1,
|
||||
extended_hash:1,
|
||||
|
@ -793,7 +794,6 @@ struct gfar_private {
|
|||
|
||||
/* PHY stuff */
|
||||
struct phy_device *phydev;
|
||||
struct phy_device *tbiphy;
|
||||
struct mii_bus *mii_bus;
|
||||
int oldspeed;
|
||||
int oldduplex;
|
||||
|
|
Loading…
Reference in a new issue