Commit 9c9b1f24 authored by Giuseppe CAVALLARO's avatar Giuseppe CAVALLARO Committed by David S. Miller

net/phy: add IC+ IP101A and support APS.

This patch adds the IC+ IP101A Single port 10/100 PHY
and supports the APS (i.e. power saving mode while link is down)
for both IP1001 and IP101A (where this mode is supported).
Signed-off-by: default avatarGiuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e3feb266
...@@ -30,10 +30,17 @@ ...@@ -30,10 +30,17 @@
#include <asm/irq.h> #include <asm/irq.h>
#include <asm/uaccess.h> #include <asm/uaccess.h>
MODULE_DESCRIPTION("ICPlus IP175C/IC1001 PHY drivers"); MODULE_DESCRIPTION("ICPlus IP175C/IP101A/IC1001 PHY drivers");
MODULE_AUTHOR("Michael Barkowski"); MODULE_AUTHOR("Michael Barkowski");
MODULE_LICENSE("GPL"); MODULE_LICENSE("GPL");
/* IP101A/IP1001 */
#define IP10XX_SPEC_CTRL_STATUS 16 /* Spec. Control Register */
#define IP1001_SPEC_CTRL_STATUS_2 20 /* IP1001 Spec. Control Reg 2 */
#define IP1001_PHASE_SEL_MASK 3 /* IP1001 RX/TXPHASE_SEL */
#define IP1001_APS_ON 11 /* IP1001 APS Mode bit */
#define IP101A_APS_ON 2 /* IP101A APS Mode bit */
static int ip175c_config_init(struct phy_device *phydev) static int ip175c_config_init(struct phy_device *phydev)
{ {
int err, i; int err, i;
...@@ -89,27 +96,58 @@ static int ip175c_config_init(struct phy_device *phydev) ...@@ -89,27 +96,58 @@ static int ip175c_config_init(struct phy_device *phydev)
return 0; return 0;
} }
static int ip1001_config_init(struct phy_device *phydev) static int ip1xx_reset(struct phy_device *phydev)
{ {
int err, value; int err, bmcr;
/* Software Reset PHY */ /* Software Reset PHY */
value = phy_read(phydev, MII_BMCR); bmcr = phy_read(phydev, MII_BMCR);
value |= BMCR_RESET; bmcr |= BMCR_RESET;
err = phy_write(phydev, MII_BMCR, value); err = phy_write(phydev, MII_BMCR, bmcr);
if (err < 0) if (err < 0)
return err; return err;
do { do {
value = phy_read(phydev, MII_BMCR); bmcr = phy_read(phydev, MII_BMCR);
} while (value & BMCR_RESET); } while (bmcr & BMCR_RESET);
return err;
}
static int ip1001_config_init(struct phy_device *phydev)
{
int c;
c = ip1xx_reset(phydev);
if (c < 0)
return c;
/* Enable Auto Power Saving mode */
c = phy_read(phydev, IP1001_SPEC_CTRL_STATUS_2);
c |= IP1001_APS_ON;
if (c < 0)
return c;
/* Additional delay (2ns) used to adjust RX clock phase /* Additional delay (2ns) used to adjust RX clock phase
* at GMII/ RGMII interface */ * at GMII/ RGMII interface */
value = phy_read(phydev, 16); c = phy_read(phydev, IP10XX_SPEC_CTRL_STATUS);
value |= 0x3; c |= IP1001_PHASE_SEL_MASK;
return phy_write(phydev, IP10XX_SPEC_CTRL_STATUS, c);
}
static int ip101a_config_init(struct phy_device *phydev)
{
int c;
return phy_write(phydev, 16, value); c = ip1xx_reset(phydev);
if (c < 0)
return c;
/* Enable Auto Power Saving mode */
c = phy_read(phydev, IP10XX_SPEC_CTRL_STATUS);
c |= IP101A_APS_ON;
return c;
} }
static int ip175c_read_status(struct phy_device *phydev) static int ip175c_read_status(struct phy_device *phydev)
...@@ -158,6 +196,20 @@ static struct phy_driver ip1001_driver = { ...@@ -158,6 +196,20 @@ static struct phy_driver ip1001_driver = {
.driver = { .owner = THIS_MODULE,}, .driver = { .owner = THIS_MODULE,},
}; };
static struct phy_driver ip101a_driver = {
.phy_id = 0x02430c54,
.name = "ICPlus IP101A",
.phy_id_mask = 0x0ffffff0,
.features = PHY_BASIC_FEATURES | SUPPORTED_Pause |
SUPPORTED_Asym_Pause,
.config_init = &ip101a_config_init,
.config_aneg = &genphy_config_aneg,
.read_status = &genphy_read_status,
.suspend = genphy_suspend,
.resume = genphy_resume,
.driver = { .owner = THIS_MODULE,},
};
static int __init icplus_init(void) static int __init icplus_init(void)
{ {
int ret = 0; int ret = 0;
...@@ -166,12 +218,17 @@ static int __init icplus_init(void) ...@@ -166,12 +218,17 @@ static int __init icplus_init(void)
if (ret < 0) if (ret < 0)
return -ENODEV; return -ENODEV;
ret = phy_driver_register(&ip101a_driver);
if (ret < 0)
return -ENODEV;
return phy_driver_register(&ip175c_driver); return phy_driver_register(&ip175c_driver);
} }
static void __exit icplus_exit(void) static void __exit icplus_exit(void)
{ {
phy_driver_unregister(&ip1001_driver); phy_driver_unregister(&ip1001_driver);
phy_driver_unregister(&ip101a_driver);
phy_driver_unregister(&ip175c_driver); phy_driver_unregister(&ip175c_driver);
} }
......
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