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net: thunder: Factor out DT specific code in BGX 

Separate DT code in preparation for follow-on ACPI integration.

Based on code from: Tomasz Nowicki <tomasz.nowicki@linaro.org>

Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Robert Richter 2015-08-10 17:58:36 -07:00 committed by David S. Miller
parent 07a51cd379
commit de387e1156
1 changed files with 35 additions and 13 deletions
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48
drivers/net/ethernet/cavium/thunder/thunder_bgx.c
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@ -835,18 +835,28 @@ static void bgx_get_qlm_mode(struct bgx *bgx)
}
}
static void bgx_init_of(struct bgx *bgx, struct device_node *np)
#if IS_ENABLED(CONFIG_OF_MDIO)
static int bgx_init_of_phy(struct bgx *bgx)
{
struct device_node *np;
struct device_node *np_child;
u8 lmac = 0;
char bgx_sel[5];
const char *mac;
/* Get BGX node from DT */
snprintf(bgx_sel, 5, "bgx%d", bgx->bgx_id);
np = of_find_node_by_name(NULL, bgx_sel);
if (!np)
return -ENODEV;
for_each_child_of_node(np, np_child) {
struct device_node *phy_np;
const char *mac;
phy_np = of_parse_phandle(np_child, "phy-handle", 0);
if (phy_np)
bgx->lmac[lmac].phydev = of_phy_find_device(phy_np);
struct device_node *phy_np = of_parse_phandle(np_child,
"phy-handle", 0);
if (!phy_np)
continue;
bgx->lmac[lmac].phydev = of_phy_find_device(phy_np);
mac = of_get_mac_address(np_child);
if (mac)
@ -858,6 +868,21 @@ static void bgx_init_of(struct bgx *bgx, struct device_node *np)
if (lmac == MAX_LMAC_PER_BGX)
break;
}
return 0;
}
#else
static int bgx_init_of_phy(struct bgx *bgx)
{
return -ENODEV;
}
#endif /* CONFIG_OF_MDIO */
static int bgx_init_phy(struct bgx *bgx)
{
return bgx_init_of_phy(bgx);
}
static int bgx_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
@ -865,8 +890,6 @@ static int bgx_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
int err;
struct device *dev = &pdev->dev;
struct bgx *bgx = NULL;
struct device_node *np;
char bgx_sel[5];
u8 lmac;
bgx = devm_kzalloc(dev, sizeof(*bgx), GFP_KERNEL);
@ -902,10 +925,9 @@ static int bgx_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
bgx_vnic[bgx->bgx_id] = bgx;
bgx_get_qlm_mode(bgx);
snprintf(bgx_sel, 5, "bgx%d", bgx->bgx_id);
np = of_find_node_by_name(NULL, bgx_sel);
if (np)
bgx_init_of(bgx, np);
err = bgx_init_phy(bgx);
if (err)
goto err_enable;
bgx_init_hw(bgx);