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Message-Id: <20180427015646.24946-3-vivien.didelot@savoirfairelinux.com>
Date: Thu, 26 Apr 2018 21:56:45 -0400
From: Vivien Didelot <vivien.didelot@...oirfairelinux.com>
To: netdev@...r.kernel.org
Cc: Andrew Lunn <andrew@...n.ch>,
Vivien Didelot <vivien.didelot@...oirfairelinux.com>,
Florian Fainelli <f.fainelli@...il.com>,
"David S. Miller" <davem@...emloft.net>,
linux-kernel@...r.kernel.org, kernel@...oirfairelinux.com
Subject: [PATCH net-next 2/3] net: dsa: mv88e6xxx: move device mapping setup
Move the Device Mapping setup out of the specific Global 2 code,
into the top level device setup function.
Signed-off-by: Vivien Didelot <vivien.didelot@...oirfairelinux.com>
---
drivers/net/dsa/mv88e6xxx/chip.c | 27 +++++++++++++++++++++
drivers/net/dsa/mv88e6xxx/global2.c | 37 +++++------------------------
drivers/net/dsa/mv88e6xxx/global2.h | 12 +++++++++-
3 files changed, 44 insertions(+), 32 deletions(-)
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 379edaf79aca..0b7530452643 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -1020,6 +1020,29 @@ static void mv88e6xxx_port_stp_state_set(struct dsa_switch *ds, int port,
dev_err(ds->dev, "p%d: failed to update state\n", port);
}
+static int mv88e6xxx_devmap_setup(struct mv88e6xxx_chip *chip)
+{
+ int target, port;
+ int err;
+
+ if (!chip->info->global2_addr)
+ return 0;
+
+ /* Initialize the routing port to the 32 possible target devices */
+ for (target = 0; target < 32; target++) {
+ port = 0x1f;
+ if (target < DSA_MAX_SWITCHES)
+ if (chip->ds->rtable[target] != DSA_RTABLE_NONE)
+ port = chip->ds->rtable[target];
+
+ err = mv88e6xxx_g2_device_mapping_write(chip, target, port);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+
static int mv88e6xxx_trunk_setup(struct mv88e6xxx_chip *chip)
{
/* Clear all trunk masks and mapping */
@@ -2246,6 +2269,10 @@ static int mv88e6xxx_setup(struct dsa_switch *ds)
if (err)
goto unlock;
+ err = mv88e6xxx_devmap_setup(chip);
+ if (err)
+ goto unlock;
+
/* Setup PTP Hardware Clock and timestamping */
if (chip->info->ptp_support) {
err = mv88e6xxx_ptp_setup(chip);
diff --git a/drivers/net/dsa/mv88e6xxx/global2.c b/drivers/net/dsa/mv88e6xxx/global2.c
index 3f24763aedc5..96e74d8d500d 100644
--- a/drivers/net/dsa/mv88e6xxx/global2.c
+++ b/drivers/net/dsa/mv88e6xxx/global2.c
@@ -119,37 +119,17 @@ int mv88e6352_g2_mgmt_rsvd2cpu(struct mv88e6xxx_chip *chip)
/* Offset 0x06: Device Mapping Table register */
-static int mv88e6xxx_g2_device_mapping_write(struct mv88e6xxx_chip *chip,
- int target, int port)
+int mv88e6xxx_g2_device_mapping_write(struct mv88e6xxx_chip *chip, int target,
+ int port)
{
- u16 val = (target << 8) | (port & 0xf);
+ u16 val = (target << 8) | (port & 0x1f);
+ /* Modern chips use 5 bits to define a device mapping port,
+ * but bit 4 is reserved on older chips, so it is safe to use.
+ */
return mv88e6xxx_g2_update(chip, MV88E6XXX_G2_DEVICE_MAPPING, val);
}
-static int mv88e6xxx_g2_set_device_mapping(struct mv88e6xxx_chip *chip)
-{
- int target, port;
- int err;
-
- /* Initialize the routing port to the 32 possible target devices */
- for (target = 0; target < 32; ++target) {
- port = 0xf;
-
- if (target < DSA_MAX_SWITCHES) {
- port = chip->ds->rtable[target];
- if (port == DSA_RTABLE_NONE)
- port = 0xf;
- }
-
- err = mv88e6xxx_g2_device_mapping_write(chip, target, port);
- if (err)
- break;
- }
-
- return err;
-}
-
/* Offset 0x07: Trunk Mask Table register */
static int mv88e6xxx_g2_trunk_mask_write(struct mv88e6xxx_chip *chip, int num,
@@ -1154,10 +1134,5 @@ int mv88e6xxx_g2_setup(struct mv88e6xxx_chip *chip)
if (err)
return err;
- /* Program the DSA routing table. */
- err = mv88e6xxx_g2_set_device_mapping(chip);
- if (err)
- return err;
-
return 0;
}
diff --git a/drivers/net/dsa/mv88e6xxx/global2.h b/drivers/net/dsa/mv88e6xxx/global2.h
index 7bd4ab31a93e..46913a289255 100644
--- a/drivers/net/dsa/mv88e6xxx/global2.h
+++ b/drivers/net/dsa/mv88e6xxx/global2.h
@@ -60,7 +60,8 @@
#define MV88E6XXX_G2_DEVICE_MAPPING 0x06
#define MV88E6XXX_G2_DEVICE_MAPPING_UPDATE 0x8000
#define MV88E6XXX_G2_DEVICE_MAPPING_DEV_MASK 0x1f00
-#define MV88E6XXX_G2_DEVICE_MAPPING_PORT_MASK 0x000f
+#define MV88E6352_G2_DEVICE_MAPPING_PORT_MASK 0x000f
+#define MV88E6390_G2_DEVICE_MAPPING_PORT_MASK 0x001f
/* Offset 0x07: Trunk Mask Table Register */
#define MV88E6XXX_G2_TRUNK_MASK 0x07
@@ -329,6 +330,9 @@ int mv88e6xxx_g2_pot_clear(struct mv88e6xxx_chip *chip);
int mv88e6xxx_g2_trunk_clear(struct mv88e6xxx_chip *chip);
+int mv88e6xxx_g2_device_mapping_write(struct mv88e6xxx_chip *chip, int target,
+ int port);
+
extern const struct mv88e6xxx_irq_ops mv88e6097_watchdog_ops;
extern const struct mv88e6xxx_irq_ops mv88e6390_watchdog_ops;
@@ -502,6 +506,12 @@ static inline int mv88e6xxx_g2_trunk_clear(struct mv88e6xxx_chip *chip)
return -EOPNOTSUPP;
}
+static inline int mv88e6xxx_g2_device_mapping_write(struct mv88e6xxx_chip *chip,
+ int target, int port)
+{
+ return -EOPNOTSUPP;
+}
+
#endif /* CONFIG_NET_DSA_MV88E6XXX_GLOBAL2 */
#endif /* _MV88E6XXX_GLOBAL2_H */
--
2.17.0
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