[U-Boot] [PATCH v2 2/4] phy: Include NC-SI in phy setup
Samuel Mendoza-Jonas
sam at mendozajonas.com
Tue Jun 18 01:37:18 UTC 2019
Add NC-SI to the usual phy handling. This makes two notable changes:
- Somewhat similar to a fixed phy, phy_connect() will create an NC-SI
phy if CONFIG_PHY_NCSI is defined.
- An early return is added to phy_read() and phy_write() to handle a
case like the NC-SI phy which does not define a bus.
Signed-off-by: Samuel Mendoza-Jonas <sam at mendozajonas.com>
---
drivers/net/phy/phy.c | 7 +++++++
include/phy.h | 11 +++++++++++
include/phy_interface.h | 2 ++
3 files changed, 20 insertions(+)
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index c1c1af9abd..dc68f25ebf 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -539,6 +539,9 @@ int phy_init(void)
#endif
#ifdef CONFIG_PHY_FIXED
phy_fixed_init();
+#endif
+#ifdef CONFIG_PHY_NCSI
+ phy_ncsi_init();
#endif
return 0;
}
@@ -947,6 +950,10 @@ struct phy_device *phy_connect(struct mii_dev *bus, int addr,
phydev = phy_connect_fixed(bus, dev, interface);
#endif
+#ifdef CONFIG_PHY_NCSI
+ phydev = phy_device_create(bus, 0, PHY_NCSI_ID, false, interface);
+#endif
+
if (!phydev)
phydev = phy_find_by_mask(bus, mask, interface);
diff --git a/include/phy.h b/include/phy.h
index 297fc7a78e..56bd146e2c 100644
--- a/include/phy.h
+++ b/include/phy.h
@@ -163,6 +163,11 @@ static inline int phy_read(struct phy_device *phydev, int devad, int regnum)
{
struct mii_dev *bus = phydev->bus;
+ if (!bus || !bus->read) {
+ debug("%s: No bus configured\n", __func__);
+ return -1;
+ }
+
return bus->read(bus, phydev->addr, devad, regnum);
}
@@ -171,6 +176,11 @@ static inline int phy_write(struct phy_device *phydev, int devad, int regnum,
{
struct mii_dev *bus = phydev->bus;
+ if (!bus || !bus->read) {
+ debug("%s: No bus configured\n", __func__);
+ return -1;
+ }
+
return bus->write(bus, phydev->addr, devad, regnum, val);
}
@@ -312,6 +322,7 @@ int phy_vitesse_init(void);
int phy_xilinx_init(void);
int phy_mscc_init(void);
int phy_fixed_init(void);
+int phy_ncsi_init(void);
int board_phy_config(struct phy_device *phydev);
int get_phy_id(struct mii_dev *bus, int addr, int devad, u32 *phy_id);
diff --git a/include/phy_interface.h b/include/phy_interface.h
index c6823189f8..9e334bb47d 100644
--- a/include/phy_interface.h
+++ b/include/phy_interface.h
@@ -31,6 +31,7 @@ typedef enum {
PHY_INTERFACE_MODE_XLAUI,
PHY_INTERFACE_MODE_CAUI2,
PHY_INTERFACE_MODE_CAUI4,
+ PHY_INTERFACE_MODE_NCSI,
PHY_INTERFACE_MODE_NONE, /* Must be last */
PHY_INTERFACE_MODE_COUNT,
@@ -58,6 +59,7 @@ static const char * const phy_interface_strings[] = {
[PHY_INTERFACE_MODE_XLAUI] = "xlaui4",
[PHY_INTERFACE_MODE_CAUI2] = "caui2",
[PHY_INTERFACE_MODE_CAUI4] = "caui4",
+ [PHY_INTERFACE_MODE_NCSI] = "NC-SI",
[PHY_INTERFACE_MODE_NONE] = "",
};
--
2.21.0
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