UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

drivers: net: xgene: Fix the ACPI support for RGMII/SGMII0/XFI interface of APM X-Gene SoC ethernet controller. 

This patch implements couple of fixes to support ACPI for RGMII/SGMII0/XFI
interface of APM X-Gene SoC ethernet controller driver. This patch uses
the _SUN acpi object to fetch the port-id information whereas the FDT uses
port-id binding for port-id information.

Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Suman Tripathi 2015-06-23 14:47:14 +05:30 committed by David S. Miller
parent 0dd0770936
commit 0738c54d63
2 changed files with 43 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
View File

@ -751,7 +751,7 @@ static int xgene_mdiobus_register(struct xgene_enet_pdata *pdata,
if (ret)
return -EINVAL;
phy = get_phy_device(mdio, phy_id, true);
phy = get_phy_device(mdio, phy_id, false);
if (!phy || IS_ERR(phy))
return -EIO;

64
drivers/net/ethernet/apm/xgene/xgene_enet_main.c
View File

@ -29,6 +29,7 @@
#define RES_RING_CMD 2
static const struct of_device_id xgene_enet_of_match[];
static const struct acpi_device_id xgene_enet_acpi_match[];
static void xgene_enet_init_bufpool(struct xgene_enet_desc_ring *buf_pool)
{
@ -870,24 +871,33 @@ static const struct net_device_ops xgene_ndev_ops = {
.ndo_set_mac_address = xgene_enet_set_mac_address,
};
static int xgene_get_port_id(struct device *dev, struct xgene_enet_pdata *pdata)
static int xgene_get_port_id_acpi(struct device *dev,
struct xgene_enet_pdata *pdata)
{
acpi_status status;
u64 temp;
status = acpi_evaluate_integer(ACPI_HANDLE(dev), "_SUN", NULL, &temp);
if (ACPI_FAILURE(status)) {
pdata->port_id = 0;
} else {
pdata->port_id = temp;
}
return 0;
}
static int xgene_get_port_id_dt(struct device *dev, struct xgene_enet_pdata *pdata)
{
u32 id = 0;
int ret;
ret = device_property_read_u32(dev, "port-id", &id);
switch (ret) {
case -EINVAL:
ret = of_property_read_u32(dev->of_node, "port-id", &id);
if (ret) {
pdata->port_id = 0;
ret = 0;
break;
case 0:
} else {
pdata->port_id = id & BIT(0);
break;
default:
dev_err(dev, "Incorrect port-id specified: errno: %d\n", ret);
break;
}
return ret;
@ -977,7 +987,12 @@ static int xgene_enet_get_resources(struct xgene_enet_pdata *pdata)
return -ENOMEM;
}
ret = xgene_get_port_id(dev, pdata);
if (dev->of_node)
ret = xgene_get_port_id_dt(dev, pdata);
#ifdef CONFIG_ACPI
else
ret = xgene_get_port_id_acpi(dev, pdata);
#endif
if (ret)
return ret;
@ -1173,9 +1188,7 @@ static int xgene_enet_probe(struct platform_device *pdev)
struct xgene_enet_pdata *pdata;
struct device *dev = &pdev->dev;
struct xgene_mac_ops *mac_ops;
#ifdef CONFIG_OF
const struct of_device_id *of_id;
#endif
int ret;
ndev = alloc_etherdev(sizeof(struct xgene_enet_pdata));
@ -1194,16 +1207,23 @@ static int xgene_enet_probe(struct platform_device *pdev)
NETIF_F_GSO |
NETIF_F_GRO;
#ifdef CONFIG_OF
of_id = of_match_device(xgene_enet_of_match, &pdev->dev);
if (of_id) {
pdata->enet_id = (enum xgene_enet_id)of_id->data;
if (!pdata->enet_id) {
free_netdev(ndev);
return -ENODEV;
}
}
#ifdef CONFIG_ACPI
else {
const struct acpi_device_id *acpi_id;
acpi_id = acpi_match_device(xgene_enet_acpi_match, &pdev->dev);
if (acpi_id)
pdata->enet_id = (enum xgene_enet_id) acpi_id->driver_data;
}
#endif
if (!pdata->enet_id) {
free_netdev(ndev);
return -ENODEV;
}
ret = xgene_enet_get_resources(pdata);
if (ret)
@ -1266,9 +1286,9 @@ static int xgene_enet_remove(struct platform_device *pdev)
#ifdef CONFIG_ACPI
static const struct acpi_device_id xgene_enet_acpi_match[] = {
{ "APMC0D05", },
{ "APMC0D30", },
{ "APMC0D31", },
{ "APMC0D05", XGENE_ENET1},
{ "APMC0D30", XGENE_ENET1},
{ "APMC0D31", XGENE_ENET1},
{ }
};
MODULE_DEVICE_TABLE(acpi, xgene_enet_acpi_match);