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net/phy/cortina: Add support for CS4223 PHY

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Add support for Cortina CS4223 10G PHY
  - As per the CS4223 specs, an EEPROM module is
    connected to the PHY. At startup the PHY reads
    the firmware line and tries to load the firmware
    into the internal memory.
  - This driver reads the EEPROM status
    and checks if firmware has been loaded

Signed-off-by: Vicentiu Galanopulo <vicentiu.galanopulo@nxp.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Vicentiu Galanopulo 2018-05-02 06:23:38 -05:00 committed by Joe Hershberger
parent 6e35686d89
commit 552e7c57d0
3 changed files with 52 additions and 1 deletions
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48
drivers/net/phy/cortina.c
View file

@ -284,6 +284,38 @@ int cs4340_startup(struct phy_device *phydev)
return 0;
}
int cs4223_phy_init(struct phy_device *phydev)
{
int reg_value;
reg_value = phy_read(phydev, 0x00, CS4223_EEPROM_STATUS);
if (!(reg_value & CS4223_EEPROM_FIRMWARE_LOADDONE)) {
printf("%s CS4223 Firmware not present in EERPOM\n", __func__);
return -ENOSYS;
}
return 0;
}
int cs4223_config(struct phy_device *phydev)
{
return cs4223_phy_init(phydev);
}
int cs4223_probe(struct phy_device *phydev)
{
phydev->flags = PHY_FLAG_BROKEN_RESET;
return 0;
}
int cs4223_startup(struct phy_device *phydev)
{
phydev->link = 1;
phydev->speed = SPEED_10000;
phydev->duplex = DUPLEX_FULL;
return 0;
}
struct phy_driver cs4340_driver = {
.name = "Cortina CS4315/CS4340",
.uid = PHY_UID_CS4340,
@ -298,9 +330,23 @@ struct phy_driver cs4340_driver = {
.shutdown = &gen10g_shutdown,
};
struct phy_driver cs4223_driver = {
.name = "Cortina CS4223",
.uid = PHY_UID_CS4223,
.mask = 0x0ffff00f,
.features = PHY_10G_FEATURES,
.mmds = (MDIO_DEVS_PMAPMD | MDIO_DEVS_PCS |
MDIO_DEVS_AN),
.config = &cs4223_config,
.probe = &cs4223_probe,
.startup = &cs4223_startup,
.shutdown = &gen10g_shutdown,
};
int phy_cortina_init(void)
{
phy_register(&cs4340_driver);
phy_register(&cs4223_driver);
return 0;
}
@ -319,7 +365,7 @@ int get_phy_id(struct mii_dev *bus, int addr, int devad, u32 *phy_id)
return -EIO;
*phy_id |= (phy_reg & 0xffff);
if (*phy_id == PHY_UID_CS4340)
if ((*phy_id == PHY_UID_CS4340) || (*phy_id == PHY_UID_CS4223))
return 0;
/*

4
include/cortina.h
View file

@ -64,6 +64,10 @@
#define VILLA_LINE_SDS_COMMON_STX0_TX_OUTPUT_CTRLA 0x427
#define VILLA_LINE_SDS_COMMON_STX0_TX_OUTPUT_CTRLB 0x428
/* Cortina CS4223 */
#define CS4223_EEPROM_STATUS 0x5001
#define CS4223_EEPROM_FIRMWARE_LOADDONE 0x1
#define mseq_edc_bist_done (0x1<<0)
#define mseq_edc_bist_fail (0x1<<8)

1
include/phy.h
View file

@ -314,6 +314,7 @@ static inline bool phy_interface_is_sgmii(struct phy_device *phydev)
/* PHY UIDs for various PHYs that are referenced in external code */
#define PHY_UID_CS4340 0x13e51002
#define PHY_UID_CS4223 0x03e57003
#define PHY_UID_TN2020 0x00a19410
#endif