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Merge branch 'xgene-next'

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Suman Tripathi says:

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

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:
David S. Miller 2015-06-23 07:19:27 -07:00
commit 0a51f76e3c
4 changed files with 69 additions and 40 deletions
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7
drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
View File

@ -610,7 +610,7 @@ static int xgene_enet_reset(struct xgene_enet_pdata *pdata)
if (!xgene_ring_mgr_init(pdata))
return -ENODEV;
if (pdata->clk) {
if (!IS_ERR(pdata->clk)) {
clk_prepare_enable(pdata->clk);
clk_disable_unprepare(pdata->clk);
clk_prepare_enable(pdata->clk);
@ -629,7 +629,8 @@ static int xgene_enet_reset(struct xgene_enet_pdata *pdata)
static void xgene_gport_shutdown(struct xgene_enet_pdata *pdata)
{
clk_disable_unprepare(pdata->clk);
if (!IS_ERR(pdata->clk))
clk_disable_unprepare(pdata->clk);
}
static int xgene_enet_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
@ -751,7 +752,7 @@ 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;

80
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;
@ -1009,17 +1024,19 @@ static int xgene_enet_get_resources(struct xgene_enet_pdata *pdata)
if (pdata->phy_mode != PHY_INTERFACE_MODE_RGMII) {
ret = platform_get_irq(pdev, 1);
if (ret <= 0) {
dev_err(dev, "Unable to get ENET Tx completion IRQ\n");
ret = ret ? : -ENXIO;
return ret;
pdata->cq_cnt = 0;
dev_info(dev, "Unable to get Tx completion IRQ,"
"using Rx IRQ instead\n");
} else {
pdata->cq_cnt = XGENE_MAX_TXC_RINGS;
pdata->txc_irq = ret;
}
pdata->txc_irq = ret;
}
pdata->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(pdata->clk)) {
/* Firmware may have set up the clock already. */
pdata->clk = NULL;
dev_info(dev, "clocks have been setup already\n");
}
if (pdata->phy_mode != PHY_INTERFACE_MODE_XGMII)
@ -1090,13 +1107,11 @@ static void xgene_enet_setup_ops(struct xgene_enet_pdata *pdata)
pdata->mac_ops = &xgene_sgmac_ops;
pdata->port_ops = &xgene_sgport_ops;
pdata->rm = RM1;
pdata->cq_cnt = XGENE_MAX_TXC_RINGS;
break;
default:
pdata->mac_ops = &xgene_xgmac_ops;
pdata->port_ops = &xgene_xgport_ops;
pdata->rm = RM0;
pdata->cq_cnt = XGENE_MAX_TXC_RINGS;
break;
}
@ -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 +1286,11 @@ 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},
{ "APMC0D26", XGENE_ENET2},
{ "APMC0D25", XGENE_ENET2},
{ }
};
MODULE_DEVICE_TABLE(acpi, xgene_enet_acpi_match);

11
drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c
View File

@ -334,9 +334,11 @@ static int xgene_enet_reset(struct xgene_enet_pdata *p)
if (!xgene_ring_mgr_init(p))
return -ENODEV;
clk_prepare_enable(p->clk);
clk_disable_unprepare(p->clk);
clk_prepare_enable(p->clk);
if (!IS_ERR(p->clk)) {
clk_prepare_enable(p->clk);
clk_disable_unprepare(p->clk);
clk_prepare_enable(p->clk);
}
xgene_enet_ecc_init(p);
xgene_enet_config_ring_if_assoc(p);
@ -369,7 +371,8 @@ static void xgene_enet_cle_bypass(struct xgene_enet_pdata *p,
static void xgene_enet_shutdown(struct xgene_enet_pdata *p)
{
clk_disable_unprepare(p->clk);
if (!IS_ERR(p->clk))
clk_disable_unprepare(p->clk);
}
static void xgene_enet_link_state(struct work_struct *work)

11
drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c
View File

@ -256,9 +256,11 @@ static int xgene_enet_reset(struct xgene_enet_pdata *pdata)
if (!xgene_ring_mgr_init(pdata))
return -ENODEV;
clk_prepare_enable(pdata->clk);
clk_disable_unprepare(pdata->clk);
clk_prepare_enable(pdata->clk);
if (!IS_ERR(pdata->clk)) {
clk_prepare_enable(pdata->clk);
clk_disable_unprepare(pdata->clk);
clk_prepare_enable(pdata->clk);
}
xgene_enet_ecc_init(pdata);
xgene_enet_config_ring_if_assoc(pdata);
@ -285,7 +287,8 @@ static void xgene_enet_xgcle_bypass(struct xgene_enet_pdata *pdata,
static void xgene_enet_shutdown(struct xgene_enet_pdata *pdata)
{
clk_disable_unprepare(pdata->clk);
if (!IS_ERR(pdata->clk))
clk_disable_unprepare(pdata->clk);
}
static void xgene_enet_link_state(struct work_struct *work)