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ibm_newemac: Add support for GPCS, SGMII and M88E1112 PHY

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Add support for the phy types found on the Arches and other
PowerPC 460 based boards.

Signed-off-by: Victor Gallardo <vgallardo@amcc.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
This commit is contained in:
Victor Gallardo
2008-10-01 23:37:57 -07:00
committed by Josh Boyer
parent 5a013fc7bb
commit 9e3cb29497
5 changed files with 147 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

58
drivers/net/ibm_newemac/core.c
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@@ -130,6 +130,7 @@ static inline void emac_report_timeout_error(struct emac_instance *dev,
const char *error)
{
if (emac_has_feature(dev, EMAC_FTR_440GX_PHY_CLK_FIX |
EMAC_FTR_460EX_PHY_CLK_FIX |
EMAC_FTR_440EP_PHY_CLK_FIX))
DBG(dev, "%s" NL, error);
else if (net_ratelimit())
@@ -201,13 +202,15 @@ static inline int emac_phy_supports_gige(int phy_mode)
{
return phy_mode == PHY_MODE_GMII ||
phy_mode == PHY_MODE_RGMII ||
phy_mode == PHY_MODE_SGMII ||
phy_mode == PHY_MODE_TBI ||
phy_mode == PHY_MODE_RTBI;
}
static inline int emac_phy_gpcs(int phy_mode)
{
return phy_mode == PHY_MODE_TBI ||
return phy_mode == PHY_MODE_SGMII ||
phy_mode == PHY_MODE_TBI ||
phy_mode == PHY_MODE_RTBI;
}
@@ -351,10 +354,24 @@ static int emac_reset(struct emac_instance *dev)
emac_tx_disable(dev);
}
#ifdef CONFIG_PPC_DCR_NATIVE
/* Enable internal clock source */
if (emac_has_feature(dev, EMAC_FTR_460EX_PHY_CLK_FIX))
dcri_clrset(SDR0, SDR0_ETH_CFG,
0, SDR0_ETH_CFG_ECS << dev->cell_index);
#endif
out_be32(&p->mr0, EMAC_MR0_SRST);
while ((in_be32(&p->mr0) & EMAC_MR0_SRST) && n)
--n;
#ifdef CONFIG_PPC_DCR_NATIVE
/* Enable external clock source */
if (emac_has_feature(dev, EMAC_FTR_460EX_PHY_CLK_FIX))
dcri_clrset(SDR0, SDR0_ETH_CFG,
SDR0_ETH_CFG_ECS << dev->cell_index, 0);
#endif
if (n) {
dev->reset_failed = 0;
return 0;
@@ -547,8 +564,9 @@ static int emac_configure(struct emac_instance *dev)
switch (dev->phy.speed) {
case SPEED_1000:
if (emac_phy_gpcs(dev->phy.mode)) {
mr1 |= EMAC_MR1_MF_1000GPCS |
EMAC_MR1_MF_IPPA(dev->phy.address);
mr1 |= EMAC_MR1_MF_1000GPCS | EMAC_MR1_MF_IPPA(
(dev->phy.gpcs_address != 0xffffffff) ?
dev->phy.gpcs_address : dev->phy.address);
/* Put some arbitrary OUI, Manuf & Rev IDs so we can
* identify this GPCS PHY later.
@@ -660,8 +678,12 @@ static int emac_configure(struct emac_instance *dev)
out_be32(&p->iser, r);
/* We need to take GPCS PHY out of isolate mode after EMAC reset */
if (emac_phy_gpcs(dev->phy.mode))
emac_mii_reset_phy(&dev->phy);
if (emac_phy_gpcs(dev->phy.mode)) {
if (dev->phy.gpcs_address != 0xffffffff)
emac_mii_reset_gpcs(&dev->phy);
else
emac_mii_reset_phy(&dev->phy);
}
return 0;
}
@@ -866,7 +888,9 @@ static int emac_mdio_read(struct net_device *ndev, int id, int reg)
struct emac_instance *dev = netdev_priv(ndev);
int res;
res = __emac_mdio_read(dev->mdio_instance ? dev->mdio_instance : dev,
res = __emac_mdio_read((dev->mdio_instance &&
dev->phy.gpcs_address != id) ?
dev->mdio_instance : dev,
(u8) id, (u8) reg);
return res;
}
@@ -875,7 +899,9 @@ static void emac_mdio_write(struct net_device *ndev, int id, int reg, int val)
{
struct emac_instance *dev = netdev_priv(ndev);
__emac_mdio_write(dev->mdio_instance ? dev->mdio_instance : dev,
__emac_mdio_write((dev->mdio_instance &&
dev->phy.gpcs_address != id) ?
dev->mdio_instance : dev,
(u8) id, (u8) reg, (u16) val);
}
@@ -2367,7 +2393,11 @@ static int __devinit emac_init_phy(struct emac_instance *dev)
* XXX I probably should move these settings to the dev tree
*/
dev->phy.address = -1;
dev->phy.features = SUPPORTED_100baseT_Full | SUPPORTED_MII;
dev->phy.features = SUPPORTED_MII;
if (emac_phy_supports_gige(dev->phy_mode))
dev->phy.features |= SUPPORTED_1000baseT_Full;
else
dev->phy.features |= SUPPORTED_100baseT_Full;
dev->phy.pause = 1;
return 0;
@@ -2406,7 +2436,9 @@ static int __devinit emac_init_phy(struct emac_instance *dev)
* Note that the busy_phy_map is currently global
* while it should probably be per-ASIC...
*/
dev->phy.address = dev->cell_index;
dev->phy.gpcs_address = dev->gpcs_address;
if (dev->phy.gpcs_address == 0xffffffff)
dev->phy.address = dev->cell_index;
}
emac_configure(dev);
@@ -2516,6 +2548,8 @@ static int __devinit emac_init_config(struct emac_instance *dev)
dev->phy_address = 0xffffffff;
if (emac_read_uint_prop(np, "phy-map", &dev->phy_map, 0))
dev->phy_map = 0xffffffff;
if (emac_read_uint_prop(np, "gpcs-address", &dev->gpcs_address, 0))
dev->gpcs_address = 0xffffffff;
if (emac_read_uint_prop(np->parent, "clock-frequency", &dev->opb_bus_freq, 1))
return -ENXIO;
if (emac_read_uint_prop(np, "tah-device", &dev->tah_ph, 0))
@@ -2559,6 +2593,9 @@ static int __devinit emac_init_config(struct emac_instance *dev)
/* Check EMAC version */
if (of_device_is_compatible(np, "ibm,emac4sync")) {
dev->features |= (EMAC_FTR_EMAC4 | EMAC_FTR_EMAC4SYNC);
if (of_device_is_compatible(np, "ibm,emac-460ex") ||
of_device_is_compatible(np, "ibm,emac-460gt"))
dev->features |= EMAC_FTR_460EX_PHY_CLK_FIX;
} else if (of_device_is_compatible(np, "ibm,emac4")) {
dev->features |= EMAC_FTR_EMAC4;
if (of_device_is_compatible(np, "ibm,emac-440gx"))
@@ -2826,6 +2863,9 @@ static int __devinit emac_probe(struct of_device *ofdev,
ndev->dev_addr[0], ndev->dev_addr[1], ndev->dev_addr[2],
ndev->dev_addr[3], ndev->dev_addr[4], ndev->dev_addr[5]);
if (dev->phy_mode == PHY_MODE_SGMII)
printk(KERN_NOTICE "%s: in SGMII mode\n", ndev->name);
if (dev->phy.address >= 0)
printk("%s: found %s PHY (0x%02x)\n", ndev->name,
dev->phy.def->name, dev->phy.address);