From: Chris Packham <chris.packham@alliedtelesis.co.nz>
To: andrew@lunn.ch, vivien.didelot@gmail.com, f.fainelli@gmail.com,
olteanv@gmail.com, davem@davemloft.net, kuba@kernel.org,
linux@armlinux.org.uk
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
Chris Packham <chris.packham@alliedtelesis.co.nz>
Subject: [PATCH v3 3/3] net: dsa: mv88e6xxx: Support serdes ports on MV88E6123/6131
Date: Tue, 20 Oct 2020 16:45:58 +1300 [thread overview]
Message-ID: <20201020034558.19438-4-chris.packham@alliedtelesis.co.nz> (raw)
In-Reply-To: <20201020034558.19438-1-chris.packham@alliedtelesis.co.nz>
Implement serdes_power, serdes_get_lane and serdes_pcs_get_state ops for
the MV88E6123 so that the ports without a built-in PHY supported as
serdes ports and directly connected to other network interfaces or to
SFPs. Also implement serdes_get_regs_len and serdes_get_regs to aid
future debugging.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
---
This is untested (apart from compilation) it assumes the SERDES "phy"
address corresponds to the port number but I'm not confident that is a
valid assumption.
Changes in v3:
- None
Changes in v2:
- new
drivers/net/dsa/mv88e6xxx/chip.c | 10 +++++++
drivers/net/dsa/mv88e6xxx/serdes.c | 44 ++++++++++++++++++++++++++++++
drivers/net/dsa/mv88e6xxx/serdes.h | 4 +++
3 files changed, 58 insertions(+)
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 62d4d7b5d9ac..5344fc84b03e 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -3574,6 +3574,11 @@ static const struct mv88e6xxx_ops mv88e6123_ops = {
.set_egress_port = mv88e6095_g1_set_egress_port,
.watchdog_ops = &mv88e6097_watchdog_ops,
.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
+ .serdes_power = mv88e6123_serdes_power,
+ .serdes_get_lane = mv88e6185_serdes_get_lane,
+ .serdes_pcs_get_state = mv88e6185_serdes_pcs_get_state,
+ .serdes_get_regs_len = mv88e6123_serdes_get_regs_len,
+ .serdes_get_regs = mv88e6123_serdes_get_regs,
.pot_clear = mv88e6xxx_g2_pot_clear,
.reset = mv88e6352_g1_reset,
.atu_get_hash = mv88e6165_g1_atu_get_hash,
@@ -3613,6 +3618,11 @@ static const struct mv88e6xxx_ops mv88e6131_ops = {
.set_egress_port = mv88e6095_g1_set_egress_port,
.watchdog_ops = &mv88e6097_watchdog_ops,
.mgmt_rsvd2cpu = mv88e6185_g2_mgmt_rsvd2cpu,
+ .serdes_power = mv88e6123_serdes_power,
+ .serdes_get_lane = mv88e6185_serdes_get_lane,
+ .serdes_pcs_get_state = mv88e6185_serdes_pcs_get_state,
+ .serdes_get_regs_len = mv88e6123_serdes_get_regs_len,
+ .serdes_get_regs = mv88e6123_serdes_get_regs,
.ppu_enable = mv88e6185_g1_ppu_enable,
.set_cascade_port = mv88e6185_g1_set_cascade_port,
.ppu_disable = mv88e6185_g1_ppu_disable,
diff --git a/drivers/net/dsa/mv88e6xxx/serdes.c b/drivers/net/dsa/mv88e6xxx/serdes.c
index d4f40a739b17..eb89debbf576 100644
--- a/drivers/net/dsa/mv88e6xxx/serdes.c
+++ b/drivers/net/dsa/mv88e6xxx/serdes.c
@@ -428,6 +428,50 @@ u8 mv88e6341_serdes_get_lane(struct mv88e6xxx_chip *chip, int port)
return lane;
}
+int mv88e6123_serdes_power(struct mv88e6xxx_chip *chip, int port, u8 lane,
+ bool up)
+{
+ u16 val, new_val;
+ int err;
+
+ err = mv88e6xxx_phy_read(chip, port, MII_BMCR, &val);
+ if (err)
+ return err;
+
+ if (up)
+ new_val = val & ~BMCR_PDOWN;
+ else
+ new_val = val | BMCR_PDOWN;
+
+ if (val != new_val)
+ err = mv88e6xxx_phy_write(chip, port, MII_BMCR, val);
+
+ return err;
+}
+
+int mv88e6123_serdes_get_regs_len(struct mv88e6xxx_chip *chip, int port)
+{
+ if (mv88e6xxx_serdes_get_lane(chip, port) == 0)
+ return 0;
+
+ return 26 * sizeof(u16);
+}
+
+void mv88e6123_serdes_get_regs(struct mv88e6xxx_chip *chip, int port, void *_p)
+{
+ u16 *p = _p;
+ u16 reg;
+ int i;
+
+ if (mv88e6xxx_serdes_get_lane(chip, port) == 0)
+ return;
+
+ for (i = 0; i < 26; i++) {
+ mv88e6xxx_phy_read(chip, port, i, ®);
+ p[i] = reg;
+ }
+}
+
int mv88e6185_serdes_power(struct mv88e6xxx_chip *chip, int port, u8 lane,
bool up)
{
diff --git a/drivers/net/dsa/mv88e6xxx/serdes.h b/drivers/net/dsa/mv88e6xxx/serdes.h
index c24ec4122c9e..b573139928c4 100644
--- a/drivers/net/dsa/mv88e6xxx/serdes.h
+++ b/drivers/net/dsa/mv88e6xxx/serdes.h
@@ -104,6 +104,8 @@ unsigned int mv88e6352_serdes_irq_mapping(struct mv88e6xxx_chip *chip,
int port);
unsigned int mv88e6390_serdes_irq_mapping(struct mv88e6xxx_chip *chip,
int port);
+int mv88e6123_serdes_power(struct mv88e6xxx_chip *chip, int port, u8 lane,
+ bool up);
int mv88e6185_serdes_power(struct mv88e6xxx_chip *chip, int port, u8 lane,
bool up);
int mv88e6352_serdes_power(struct mv88e6xxx_chip *chip, int port, u8 lane,
@@ -129,6 +131,8 @@ int mv88e6390_serdes_get_strings(struct mv88e6xxx_chip *chip,
int mv88e6390_serdes_get_stats(struct mv88e6xxx_chip *chip, int port,
uint64_t *data);
+int mv88e6123_serdes_get_regs_len(struct mv88e6xxx_chip *chip, int port);
+void mv88e6123_serdes_get_regs(struct mv88e6xxx_chip *chip, int port, void *_p);
int mv88e6352_serdes_get_regs_len(struct mv88e6xxx_chip *chip, int port);
void mv88e6352_serdes_get_regs(struct mv88e6xxx_chip *chip, int port, void *_p);
int mv88e6390_serdes_get_regs_len(struct mv88e6xxx_chip *chip, int port);
--
2.28.0
next prev parent reply other threads:[~2020-10-20 3:46 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-20 3:45 [PATCH v3 0/3] net: dsa: mv88e6xxx: serdes link without phy Chris Packham
2020-10-20 3:45 ` [PATCH v3 1/3] net: dsa: mv88e6xxx: Don't force link when using in-band-status Chris Packham
2020-10-20 10:15 ` Russell King - ARM Linux admin
2020-10-20 13:49 ` Marek Behun
2020-10-20 14:05 ` Andrew Lunn
2020-10-20 14:15 ` Russell King - ARM Linux admin
2020-10-20 14:51 ` Marek Behun
2020-10-20 14:58 ` Andrew Lunn
2020-10-20 21:04 ` Chris Packham
2020-10-20 21:15 ` Andrew Lunn
2020-10-20 21:06 ` Chris Packham
2020-10-20 21:18 ` Russell King - ARM Linux admin
2020-10-21 2:20 ` Chris Packham
2020-10-20 3:45 ` [PATCH v3 2/3] net: dsa: mv88e6xxx: Support serdes ports on MV88E6097/6095/6185 Chris Packham
2020-10-20 3:45 ` Chris Packham [this message]
2020-10-20 10:18 ` [PATCH v3 3/3] net: dsa: mv88e6xxx: Support serdes ports on MV88E6123/6131 Russell King - ARM Linux admin
2020-10-20 21:24 ` Chris Packham
2020-10-20 21:34 ` Russell King - ARM Linux admin
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