changes v2:
- add regmap_ranges for KSZ9477
- drop output clock devicetree in driver validation patches. DTs need
some more refactoring and can be done in a separate patch set.
- remove some unused variables.
This patch series adds error handling for the PHY read/write path and optional
register access validation.
After adding regmap_ranges for KSZ8563 some bugs was detected, so
critical bug fixes are sorted before ragmap_range patch.
Potentially this bug fixes can be ported to stable kernels, but need to be
reworked.
Oleksij Rempel (17):
net: dsa: microchip: add separate struct ksz_chip_data for KSZ8563
chip
net: dsa: microchip: do per-port Gbit detection instead of per-chip
net: dsa: microchip: don't announce extended register support on non
Gbit chips
net: dsa: microchip: allow to pass return values for PHY read/write
accesses
net: dsa: microchip: forward error value on all ksz_pread/ksz_pwrite
functions
net: dsa: microchip: ksz9477: add error handling to ksz9477_r/w_phy
net: dsa: microchip: ksz8795: add error handling to ksz8_r/w_phy
net: dsa: microchip: KSZ9893: do not write to not supported Output
Clock Control Register
net: dsa: microchip: add support for regmap_access_tables
net: dsa: microchip: add regmap_range for KSZ8563 chip
net: dsa: microchip: ksz9477: remove MII_CTRL1000 check from
ksz9477_w_phy()
net: dsa: microchip: add regmap_range for KSZ9477 chip
net: dsa: microchip: ksz9477: use internal_phy instead of phy_port_cnt
net: dsa: microchip: remove unused port phy variable
net: dsa: microchip: ksz9477: remove unused "on" variable
net: dsa: microchip: remove unused sgmii variable
net: dsa: microchip: remove IS_9893 flag
drivers/net/dsa/microchip/ksz8.h | 4 +-
drivers/net/dsa/microchip/ksz8795.c | 111 ++++--
drivers/net/dsa/microchip/ksz9477.c | 86 ++---
drivers/net/dsa/microchip/ksz9477.h | 4 +-
drivers/net/dsa/microchip/ksz_common.c | 450 ++++++++++++++++++++++-
drivers/net/dsa/microchip/ksz_common.h | 90 +++--
drivers/net/dsa/microchip/ksz_spi.c | 5 +-
drivers/net/dsa/microchip/lan937x.h | 4 +-
drivers/net/dsa/microchip/lan937x_main.c | 8 +-
9 files changed, 646 insertions(+), 116 deletions(-)
--
2.30.2
Now ksz_pread/ksz_pwrite can return error value. So, make use of it.
Signed-off-by: Oleksij Rempel <[email protected]>
Reviewed-by: Vladimir Oltean <[email protected]>
---
drivers/net/dsa/microchip/ksz8795.c | 102 ++++++++++++++++++++++------
1 file changed, 81 insertions(+), 21 deletions(-)
diff --git a/drivers/net/dsa/microchip/ksz8795.c b/drivers/net/dsa/microchip/ksz8795.c
index f2dd75ee0e075..f020d9f402845 100644
--- a/drivers/net/dsa/microchip/ksz8795.c
+++ b/drivers/net/dsa/microchip/ksz8795.c
@@ -560,14 +560,24 @@ int ksz8_r_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 *val)
u8 val1, val2;
u16 data = 0;
u8 p = phy;
+ int ret;
regs = dev->info->regs;
switch (reg) {
case MII_BMCR:
- ksz_pread8(dev, p, regs[P_NEG_RESTART_CTRL], &restart);
- ksz_pread8(dev, p, regs[P_SPEED_STATUS], &speed);
- ksz_pread8(dev, p, regs[P_FORCE_CTRL], &ctrl);
+ ret = ksz_pread8(dev, p, regs[P_NEG_RESTART_CTRL], &restart);
+ if (ret)
+ return ret;
+
+ ret = ksz_pread8(dev, p, regs[P_SPEED_STATUS], &speed);
+ if (ret)
+ return ret;
+
+ ret = ksz_pread8(dev, p, regs[P_FORCE_CTRL], &ctrl);
+ if (ret)
+ return ret;
+
if (restart & PORT_PHY_LOOPBACK)
data |= BMCR_LOOPBACK;
if (ctrl & PORT_FORCE_100_MBIT)
@@ -597,7 +607,10 @@ int ksz8_r_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 *val)
data |= KSZ886X_BMCR_DISABLE_LED;
break;
case MII_BMSR:
- ksz_pread8(dev, p, regs[P_LINK_STATUS], &link);
+ ret = ksz_pread8(dev, p, regs[P_LINK_STATUS], &link);
+ if (ret)
+ return ret;
+
data = BMSR_100FULL |
BMSR_100HALF |
BMSR_10FULL |
@@ -618,7 +631,10 @@ int ksz8_r_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 *val)
data = KSZ8795_ID_LO;
break;
case MII_ADVERTISE:
- ksz_pread8(dev, p, regs[P_LOCAL_CTRL], &ctrl);
+ ret = ksz_pread8(dev, p, regs[P_LOCAL_CTRL], &ctrl);
+ if (ret)
+ return ret;
+
data = ADVERTISE_CSMA;
if (ctrl & PORT_AUTO_NEG_SYM_PAUSE)
data |= ADVERTISE_PAUSE_CAP;
@@ -632,7 +648,10 @@ int ksz8_r_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 *val)
data |= ADVERTISE_10HALF;
break;
case MII_LPA:
- ksz_pread8(dev, p, regs[P_REMOTE_STATUS], &link);
+ ret = ksz_pread8(dev, p, regs[P_REMOTE_STATUS], &link);
+ if (ret)
+ return ret;
+
data = LPA_SLCT;
if (link & PORT_REMOTE_SYM_PAUSE)
data |= LPA_PAUSE_CAP;
@@ -648,8 +667,14 @@ int ksz8_r_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 *val)
data |= LPA_LPACK;
break;
case PHY_REG_LINK_MD:
- ksz_pread8(dev, p, REG_PORT_LINK_MD_CTRL, &val1);
- ksz_pread8(dev, p, REG_PORT_LINK_MD_RESULT, &val2);
+ ret = ksz_pread8(dev, p, REG_PORT_LINK_MD_CTRL, &val1);
+ if (ret)
+ return ret;
+
+ ret = ksz_pread8(dev, p, REG_PORT_LINK_MD_RESULT, &val2);
+ if (ret)
+ return ret;
+
if (val1 & PORT_START_CABLE_DIAG)
data |= PHY_START_CABLE_DIAG;
@@ -664,7 +689,10 @@ int ksz8_r_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 *val)
FIELD_GET(PORT_CABLE_FAULT_COUNTER_L, val2));
break;
case PHY_REG_PHY_CTRL:
- ksz_pread8(dev, p, regs[P_LINK_STATUS], &link);
+ ret = ksz_pread8(dev, p, regs[P_LINK_STATUS], &link);
+ if (ret)
+ return ret;
+
if (link & PORT_MDIX_STATUS)
data |= KSZ886X_CTRL_MDIX_STAT;
break;
@@ -683,6 +711,7 @@ int ksz8_w_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 val)
u8 restart, speed, ctrl, data;
const u16 *regs;
u8 p = phy;
+ int ret;
regs = dev->info->regs;
@@ -692,15 +721,26 @@ int ksz8_w_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 val)
/* Do not support PHY reset function. */
if (val & BMCR_RESET)
break;
- ksz_pread8(dev, p, regs[P_SPEED_STATUS], &speed);
+ ret = ksz_pread8(dev, p, regs[P_SPEED_STATUS], &speed);
+ if (ret)
+ return ret;
+
data = speed;
if (val & KSZ886X_BMCR_HP_MDIX)
data |= PORT_HP_MDIX;
else
data &= ~PORT_HP_MDIX;
- if (data != speed)
- ksz_pwrite8(dev, p, regs[P_SPEED_STATUS], data);
- ksz_pread8(dev, p, regs[P_FORCE_CTRL], &ctrl);
+
+ if (data != speed) {
+ ret = ksz_pwrite8(dev, p, regs[P_SPEED_STATUS], data);
+ if (ret)
+ return ret;
+ }
+
+ ret = ksz_pread8(dev, p, regs[P_FORCE_CTRL], &ctrl);
+ if (ret)
+ return ret;
+
data = ctrl;
if (ksz_is_ksz88x3(dev)) {
if ((val & BMCR_ANENABLE))
@@ -726,9 +766,17 @@ int ksz8_w_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 val)
data |= PORT_FORCE_FULL_DUPLEX;
else
data &= ~PORT_FORCE_FULL_DUPLEX;
- if (data != ctrl)
- ksz_pwrite8(dev, p, regs[P_FORCE_CTRL], data);
- ksz_pread8(dev, p, regs[P_NEG_RESTART_CTRL], &restart);
+
+ if (data != ctrl) {
+ ret = ksz_pwrite8(dev, p, regs[P_FORCE_CTRL], data);
+ if (ret)
+ return ret;
+ }
+
+ ret = ksz_pread8(dev, p, regs[P_NEG_RESTART_CTRL], &restart);
+ if (ret)
+ return ret;
+
data = restart;
if (val & KSZ886X_BMCR_DISABLE_LED)
data |= PORT_LED_OFF;
@@ -758,11 +806,19 @@ int ksz8_w_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 val)
data |= PORT_PHY_LOOPBACK;
else
data &= ~PORT_PHY_LOOPBACK;
- if (data != restart)
- ksz_pwrite8(dev, p, regs[P_NEG_RESTART_CTRL], data);
+
+ if (data != restart) {
+ ret = ksz_pwrite8(dev, p, regs[P_NEG_RESTART_CTRL],
+ data);
+ if (ret)
+ return ret;
+ }
break;
case MII_ADVERTISE:
- ksz_pread8(dev, p, regs[P_LOCAL_CTRL], &ctrl);
+ ret = ksz_pread8(dev, p, regs[P_LOCAL_CTRL], &ctrl);
+ if (ret)
+ return ret;
+
data = ctrl;
data &= ~(PORT_AUTO_NEG_SYM_PAUSE |
PORT_AUTO_NEG_100BTX_FD |
@@ -779,8 +835,12 @@ int ksz8_w_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 val)
data |= PORT_AUTO_NEG_10BT_FD;
if (val & ADVERTISE_10HALF)
data |= PORT_AUTO_NEG_10BT;
- if (data != ctrl)
- ksz_pwrite8(dev, p, regs[P_LOCAL_CTRL], data);
+
+ if (data != ctrl) {
+ ret = ksz_pwrite8(dev, p, regs[P_LOCAL_CTRL], data);
+ if (ret)
+ return ret;
+ }
break;
case PHY_REG_LINK_MD:
if (val & PHY_START_CABLE_DIAG)
--
2.30.2
This variable is unused. So, drop it.
Signed-off-by: Oleksij Rempel <[email protected]>
---
drivers/net/dsa/microchip/ksz8795.c | 1 -
drivers/net/dsa/microchip/ksz9477.c | 5 -----
drivers/net/dsa/microchip/ksz_common.h | 1 -
3 files changed, 7 deletions(-)
diff --git a/drivers/net/dsa/microchip/ksz8795.c b/drivers/net/dsa/microchip/ksz8795.c
index f020d9f402845..bd3b133e7085b 100644
--- a/drivers/net/dsa/microchip/ksz8795.c
+++ b/drivers/net/dsa/microchip/ksz8795.c
@@ -1251,7 +1251,6 @@ void ksz8_config_cpu_port(struct dsa_switch *ds)
if (i == dev->phy_port_cnt)
break;
p->on = 1;
- p->phy = 1;
}
for (i = 0; i < dev->phy_port_cnt; i++) {
p = &dev->ports[i];
diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index 2982c8cb0983c..bfefb60ec91bf 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -1081,13 +1081,8 @@ void ksz9477_config_cpu_port(struct dsa_switch *ds)
ksz_port_stp_state_set(ds, i, BR_STATE_DISABLED);
p->on = 1;
- if (dev->info->internal_phy[i])
- p->phy = 1;
if (dev->chip_id == 0x00947700 && i == 6) {
p->sgmii = 1;
-
- /* SGMII PHY detection code is not implemented yet. */
- p->phy = 0;
}
}
}
diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h
index 769b3ec45a3b5..5b4970072c380 100644
--- a/drivers/net/dsa/microchip/ksz_common.h
+++ b/drivers/net/dsa/microchip/ksz_common.h
@@ -72,7 +72,6 @@ struct ksz_port {
struct phy_device phydev;
u32 on:1; /* port is not disabled by hardware */
- u32 phy:1; /* port has a PHY */
u32 fiber:1; /* port is fiber */
u32 sgmii:1; /* port is SGMII */
u32 force:1;
--
2.30.2
Add register validation for KSZ8563.
Signed-off-by: Oleksij Rempel <[email protected]>
---
drivers/net/dsa/microchip/ksz_common.c | 121 +++++++++++++++++++++++++
1 file changed, 121 insertions(+)
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index 089570e18fb7c..e2a698e16e023 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -412,6 +412,125 @@ static const u8 lan937x_shifts[] = {
[ALU_STAT_INDEX] = 8,
};
+static const struct regmap_range ksz8563_valid_regs[] = {
+ regmap_reg_range(0x0000, 0x0003),
+ regmap_reg_range(0x0006, 0x0006),
+ regmap_reg_range(0x000f, 0x001f),
+ regmap_reg_range(0x0100, 0x0100),
+ regmap_reg_range(0x0104, 0x0107),
+ regmap_reg_range(0x010d, 0x010d),
+ regmap_reg_range(0x0110, 0x0113),
+ regmap_reg_range(0x0120, 0x012b),
+ regmap_reg_range(0x0201, 0x0201),
+ regmap_reg_range(0x0210, 0x0213),
+ regmap_reg_range(0x0300, 0x0300),
+ regmap_reg_range(0x0302, 0x031b),
+ regmap_reg_range(0x0320, 0x032b),
+ regmap_reg_range(0x0330, 0x0336),
+ regmap_reg_range(0x0338, 0x033e),
+ regmap_reg_range(0x0340, 0x035f),
+ regmap_reg_range(0x0370, 0x0370),
+ regmap_reg_range(0x0378, 0x0378),
+ regmap_reg_range(0x037c, 0x037d),
+ regmap_reg_range(0x0390, 0x0393),
+ regmap_reg_range(0x0400, 0x040e),
+ regmap_reg_range(0x0410, 0x042f),
+ regmap_reg_range(0x0500, 0x0519),
+ regmap_reg_range(0x0520, 0x054b),
+ regmap_reg_range(0x0550, 0x05b3),
+
+ /* port 1 */
+ regmap_reg_range(0x1000, 0x1001),
+ regmap_reg_range(0x1004, 0x100b),
+ regmap_reg_range(0x1013, 0x1013),
+ regmap_reg_range(0x1017, 0x1017),
+ regmap_reg_range(0x101b, 0x101b),
+ regmap_reg_range(0x101f, 0x1021),
+ regmap_reg_range(0x1030, 0x1030),
+ regmap_reg_range(0x1100, 0x1111),
+ regmap_reg_range(0x111a, 0x111d),
+ regmap_reg_range(0x1122, 0x1127),
+ regmap_reg_range(0x112a, 0x112b),
+ regmap_reg_range(0x1136, 0x1139),
+ regmap_reg_range(0x113e, 0x113f),
+ regmap_reg_range(0x1400, 0x1401),
+ regmap_reg_range(0x1403, 0x1403),
+ regmap_reg_range(0x1410, 0x1417),
+ regmap_reg_range(0x1420, 0x1423),
+ regmap_reg_range(0x1500, 0x1507),
+ regmap_reg_range(0x1600, 0x1612),
+ regmap_reg_range(0x1800, 0x180f),
+ regmap_reg_range(0x1900, 0x1907),
+ regmap_reg_range(0x1914, 0x191b),
+ regmap_reg_range(0x1a00, 0x1a03),
+ regmap_reg_range(0x1a04, 0x1a08),
+ regmap_reg_range(0x1b00, 0x1b01),
+ regmap_reg_range(0x1b04, 0x1b04),
+ regmap_reg_range(0x1c00, 0x1c05),
+ regmap_reg_range(0x1c08, 0x1c1b),
+
+ /* port 2 */
+ regmap_reg_range(0x2000, 0x2001),
+ regmap_reg_range(0x2004, 0x200b),
+ regmap_reg_range(0x2013, 0x2013),
+ regmap_reg_range(0x2017, 0x2017),
+ regmap_reg_range(0x201b, 0x201b),
+ regmap_reg_range(0x201f, 0x2021),
+ regmap_reg_range(0x2030, 0x2030),
+ regmap_reg_range(0x2100, 0x2111),
+ regmap_reg_range(0x211a, 0x211d),
+ regmap_reg_range(0x2122, 0x2127),
+ regmap_reg_range(0x212a, 0x212b),
+ regmap_reg_range(0x2136, 0x2139),
+ regmap_reg_range(0x213e, 0x213f),
+ regmap_reg_range(0x2400, 0x2401),
+ regmap_reg_range(0x2403, 0x2403),
+ regmap_reg_range(0x2410, 0x2417),
+ regmap_reg_range(0x2420, 0x2423),
+ regmap_reg_range(0x2500, 0x2507),
+ regmap_reg_range(0x2600, 0x2612),
+ regmap_reg_range(0x2800, 0x280f),
+ regmap_reg_range(0x2900, 0x2907),
+ regmap_reg_range(0x2914, 0x291b),
+ regmap_reg_range(0x2a00, 0x2a03),
+ regmap_reg_range(0x2a04, 0x2a08),
+ regmap_reg_range(0x2b00, 0x2b01),
+ regmap_reg_range(0x2b04, 0x2b04),
+ regmap_reg_range(0x2c00, 0x2c05),
+ regmap_reg_range(0x2c08, 0x2c1b),
+
+ /* port 3 */
+ regmap_reg_range(0x3000, 0x3001),
+ regmap_reg_range(0x3004, 0x300b),
+ regmap_reg_range(0x3013, 0x3013),
+ regmap_reg_range(0x3017, 0x3017),
+ regmap_reg_range(0x301b, 0x301b),
+ regmap_reg_range(0x301f, 0x3021),
+ regmap_reg_range(0x3030, 0x3030),
+ regmap_reg_range(0x3300, 0x3301),
+ regmap_reg_range(0x3303, 0x3303),
+ regmap_reg_range(0x3400, 0x3401),
+ regmap_reg_range(0x3403, 0x3403),
+ regmap_reg_range(0x3410, 0x3417),
+ regmap_reg_range(0x3420, 0x3423),
+ regmap_reg_range(0x3500, 0x3507),
+ regmap_reg_range(0x3600, 0x3612),
+ regmap_reg_range(0x3800, 0x380f),
+ regmap_reg_range(0x3900, 0x3907),
+ regmap_reg_range(0x3914, 0x391b),
+ regmap_reg_range(0x3a00, 0x3a03),
+ regmap_reg_range(0x3a04, 0x3a08),
+ regmap_reg_range(0x3b00, 0x3b01),
+ regmap_reg_range(0x3b04, 0x3b04),
+ regmap_reg_range(0x3c00, 0x3c05),
+ regmap_reg_range(0x3c08, 0x3c1b),
+};
+
+static const struct regmap_access_table ksz8563_register_set = {
+ .yes_ranges = ksz8563_valid_regs,
+ .n_yes_ranges = ARRAY_SIZE(ksz8563_valid_regs),
+};
+
const struct ksz_chip_data ksz_switch_chips[] = {
[KSZ8563] = {
.chip_id = KSZ8563_CHIP_ID,
@@ -435,6 +554,8 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.supports_rgmii = {false, false, true},
.internal_phy = {true, true, false},
.gbit_capable = {false, false, true},
+ .wr_table = &ksz8563_register_set,
+ .rd_table = &ksz8563_register_set,
},
[KSZ8795] = {
--
2.30.2
The reason why PHYlib may access MII_CTRL1000 on the chip without GBit
support is only if chip provides wrong information about extended caps
register. This issue is now handled by ksz9477_r_phy_quirks()
With proper regmap_ranges provided for all chips we will be able to catch this
kind of bugs any way. So, remove this sanity check.
Signed-off-by: Oleksij Rempel <[email protected]>
---
drivers/net/dsa/microchip/ksz9477.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index 62a03b3b918df..cb5bd0ceb8df4 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -342,10 +342,6 @@ int ksz9477_w_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 val)
if (addr >= dev->phy_port_cnt)
return 0;
- /* No gigabit support. Do not write to this register. */
- if (!(dev->features & GBIT_SUPPORT) && reg == MII_CTRL1000)
- return -ENXIO;
-
return ksz_pwrite16(dev, addr, 0x100 + (reg << 1), val);
}
--
2.30.2
Add register validation for KSZ9477
Signed-off-by: Oleksij Rempel <[email protected]>
---
drivers/net/dsa/microchip/ksz_common.c | 272 +++++++++++++++++++++++++
1 file changed, 272 insertions(+)
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index e2a698e16e023..a863d4feb4135 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -531,6 +531,276 @@ static const struct regmap_access_table ksz8563_register_set = {
.n_yes_ranges = ARRAY_SIZE(ksz8563_valid_regs),
};
+static const struct regmap_range ksz9477_valid_regs[] = {
+ regmap_reg_range(0x0000, 0x0003),
+ regmap_reg_range(0x0006, 0x0006),
+ regmap_reg_range(0x0010, 0x001f),
+ regmap_reg_range(0x0100, 0x0100),
+ regmap_reg_range(0x0103, 0x0107),
+ regmap_reg_range(0x010d, 0x010d),
+ regmap_reg_range(0x0110, 0x0113),
+ regmap_reg_range(0x0120, 0x012b),
+ regmap_reg_range(0x0201, 0x0201),
+ regmap_reg_range(0x0210, 0x0213),
+ regmap_reg_range(0x0300, 0x0300),
+ regmap_reg_range(0x0302, 0x031b),
+ regmap_reg_range(0x0320, 0x032b),
+ regmap_reg_range(0x0330, 0x0336),
+ regmap_reg_range(0x0338, 0x033e),
+ regmap_reg_range(0x0340, 0x035f),
+ regmap_reg_range(0x0370, 0x0370),
+ regmap_reg_range(0x0378, 0x0378),
+ regmap_reg_range(0x037c, 0x037d),
+ regmap_reg_range(0x0390, 0x0393),
+ regmap_reg_range(0x0400, 0x040e),
+ regmap_reg_range(0x0410, 0x042f),
+ regmap_reg_range(0x0444, 0x044b),
+ regmap_reg_range(0x0450, 0x046f),
+ regmap_reg_range(0x0500, 0x0519),
+ regmap_reg_range(0x0520, 0x054b),
+ regmap_reg_range(0x0550, 0x05b3),
+ regmap_reg_range(0x0604, 0x060b),
+ regmap_reg_range(0x0610, 0x0612),
+ regmap_reg_range(0x0614, 0x062c),
+ regmap_reg_range(0x0640, 0x0645),
+ regmap_reg_range(0x0648, 0x064d),
+
+ /* port 1 */
+ regmap_reg_range(0x1000, 0x1001),
+ regmap_reg_range(0x1013, 0x1013),
+ regmap_reg_range(0x1017, 0x1017),
+ regmap_reg_range(0x101b, 0x101b),
+ regmap_reg_range(0x101f, 0x1020),
+ regmap_reg_range(0x1030, 0x1030),
+ regmap_reg_range(0x1100, 0x1115),
+ regmap_reg_range(0x111a, 0x111f),
+ regmap_reg_range(0x1122, 0x1127),
+ regmap_reg_range(0x112a, 0x112b),
+ regmap_reg_range(0x1136, 0x1139),
+ regmap_reg_range(0x113e, 0x113f),
+ regmap_reg_range(0x1400, 0x1401),
+ regmap_reg_range(0x1403, 0x1403),
+ regmap_reg_range(0x1410, 0x1417),
+ regmap_reg_range(0x1420, 0x1423),
+ regmap_reg_range(0x1500, 0x1507),
+ regmap_reg_range(0x1600, 0x1613),
+ regmap_reg_range(0x1800, 0x180f),
+ regmap_reg_range(0x1820, 0x1827),
+ regmap_reg_range(0x1830, 0x1837),
+ regmap_reg_range(0x1840, 0x184b),
+ regmap_reg_range(0x1900, 0x1907),
+ regmap_reg_range(0x1914, 0x191b),
+ regmap_reg_range(0x1920, 0x1920),
+ regmap_reg_range(0x1923, 0x1927),
+ regmap_reg_range(0x1a00, 0x1a03),
+ regmap_reg_range(0x1a04, 0x1a07),
+ regmap_reg_range(0x1b00, 0x1b01),
+ regmap_reg_range(0x1b04, 0x1b04),
+ regmap_reg_range(0x1c00, 0x1c05),
+ regmap_reg_range(0x1c08, 0x1c1b),
+
+ /* port 2 */
+ regmap_reg_range(0x2000, 0x2001),
+ regmap_reg_range(0x2013, 0x2013),
+ regmap_reg_range(0x2017, 0x2017),
+ regmap_reg_range(0x201b, 0x201b),
+ regmap_reg_range(0x201f, 0x2020),
+ regmap_reg_range(0x2030, 0x2030),
+ regmap_reg_range(0x2100, 0x2115),
+ regmap_reg_range(0x211a, 0x211f),
+ regmap_reg_range(0x2122, 0x2127),
+ regmap_reg_range(0x212a, 0x212b),
+ regmap_reg_range(0x2136, 0x2139),
+ regmap_reg_range(0x213e, 0x213f),
+ regmap_reg_range(0x2400, 0x2401),
+ regmap_reg_range(0x2403, 0x2403),
+ regmap_reg_range(0x2410, 0x2417),
+ regmap_reg_range(0x2420, 0x2423),
+ regmap_reg_range(0x2500, 0x2507),
+ regmap_reg_range(0x2600, 0x2613),
+ regmap_reg_range(0x2800, 0x280f),
+ regmap_reg_range(0x2820, 0x2827),
+ regmap_reg_range(0x2830, 0x2837),
+ regmap_reg_range(0x2840, 0x284b),
+ regmap_reg_range(0x2900, 0x2907),
+ regmap_reg_range(0x2914, 0x291b),
+ regmap_reg_range(0x2920, 0x2920),
+ regmap_reg_range(0x2923, 0x2927),
+ regmap_reg_range(0x2a00, 0x2a03),
+ regmap_reg_range(0x2a04, 0x2a07),
+ regmap_reg_range(0x2b00, 0x2b01),
+ regmap_reg_range(0x2b04, 0x2b04),
+ regmap_reg_range(0x2c00, 0x2c05),
+ regmap_reg_range(0x2c08, 0x2c1b),
+
+ /* port 3 */
+ regmap_reg_range(0x3000, 0x3001),
+ regmap_reg_range(0x3013, 0x3013),
+ regmap_reg_range(0x3017, 0x3017),
+ regmap_reg_range(0x301b, 0x301b),
+ regmap_reg_range(0x301f, 0x3020),
+ regmap_reg_range(0x3030, 0x3030),
+ regmap_reg_range(0x3100, 0x3115),
+ regmap_reg_range(0x311a, 0x311f),
+ regmap_reg_range(0x3122, 0x3127),
+ regmap_reg_range(0x312a, 0x312b),
+ regmap_reg_range(0x3136, 0x3139),
+ regmap_reg_range(0x313e, 0x313f),
+ regmap_reg_range(0x3400, 0x3401),
+ regmap_reg_range(0x3403, 0x3403),
+ regmap_reg_range(0x3410, 0x3417),
+ regmap_reg_range(0x3420, 0x3423),
+ regmap_reg_range(0x3500, 0x3507),
+ regmap_reg_range(0x3600, 0x3613),
+ regmap_reg_range(0x3800, 0x380f),
+ regmap_reg_range(0x3820, 0x3827),
+ regmap_reg_range(0x3830, 0x3837),
+ regmap_reg_range(0x3840, 0x384b),
+ regmap_reg_range(0x3900, 0x3907),
+ regmap_reg_range(0x3914, 0x391b),
+ regmap_reg_range(0x3920, 0x3920),
+ regmap_reg_range(0x3923, 0x3927),
+ regmap_reg_range(0x3a00, 0x3a03),
+ regmap_reg_range(0x3a04, 0x3a07),
+ regmap_reg_range(0x3b00, 0x3b01),
+ regmap_reg_range(0x3b04, 0x3b04),
+ regmap_reg_range(0x3c00, 0x3c05),
+ regmap_reg_range(0x3c08, 0x3c1b),
+
+ /* port 4 */
+ regmap_reg_range(0x4000, 0x4001),
+ regmap_reg_range(0x4013, 0x4013),
+ regmap_reg_range(0x4017, 0x4017),
+ regmap_reg_range(0x401b, 0x401b),
+ regmap_reg_range(0x401f, 0x4020),
+ regmap_reg_range(0x4030, 0x4030),
+ regmap_reg_range(0x4100, 0x4115),
+ regmap_reg_range(0x411a, 0x411f),
+ regmap_reg_range(0x4122, 0x4127),
+ regmap_reg_range(0x412a, 0x412b),
+ regmap_reg_range(0x4136, 0x4139),
+ regmap_reg_range(0x413e, 0x413f),
+ regmap_reg_range(0x4400, 0x4401),
+ regmap_reg_range(0x4403, 0x4403),
+ regmap_reg_range(0x4410, 0x4417),
+ regmap_reg_range(0x4420, 0x4423),
+ regmap_reg_range(0x4500, 0x4507),
+ regmap_reg_range(0x4600, 0x4613),
+ regmap_reg_range(0x4800, 0x480f),
+ regmap_reg_range(0x4820, 0x4827),
+ regmap_reg_range(0x4830, 0x4837),
+ regmap_reg_range(0x4840, 0x484b),
+ regmap_reg_range(0x4900, 0x4907),
+ regmap_reg_range(0x4914, 0x491b),
+ regmap_reg_range(0x4920, 0x4920),
+ regmap_reg_range(0x4923, 0x4927),
+ regmap_reg_range(0x4a00, 0x4a03),
+ regmap_reg_range(0x4a04, 0x4a07),
+ regmap_reg_range(0x4b00, 0x4b01),
+ regmap_reg_range(0x4b04, 0x4b04),
+ regmap_reg_range(0x4c00, 0x4c05),
+ regmap_reg_range(0x4c08, 0x4c1b),
+
+ /* port 5 */
+ regmap_reg_range(0x5000, 0x5001),
+ regmap_reg_range(0x5013, 0x5013),
+ regmap_reg_range(0x5017, 0x5017),
+ regmap_reg_range(0x501b, 0x501b),
+ regmap_reg_range(0x501f, 0x5020),
+ regmap_reg_range(0x5030, 0x5030),
+ regmap_reg_range(0x5100, 0x5115),
+ regmap_reg_range(0x511a, 0x511f),
+ regmap_reg_range(0x5122, 0x5127),
+ regmap_reg_range(0x512a, 0x512b),
+ regmap_reg_range(0x5136, 0x5139),
+ regmap_reg_range(0x513e, 0x513f),
+ regmap_reg_range(0x5400, 0x5401),
+ regmap_reg_range(0x5403, 0x5403),
+ regmap_reg_range(0x5410, 0x5417),
+ regmap_reg_range(0x5420, 0x5423),
+ regmap_reg_range(0x5500, 0x5507),
+ regmap_reg_range(0x5600, 0x5613),
+ regmap_reg_range(0x5800, 0x580f),
+ regmap_reg_range(0x5820, 0x5827),
+ regmap_reg_range(0x5830, 0x5837),
+ regmap_reg_range(0x5840, 0x584b),
+ regmap_reg_range(0x5900, 0x5907),
+ regmap_reg_range(0x5914, 0x591b),
+ regmap_reg_range(0x5920, 0x5920),
+ regmap_reg_range(0x5923, 0x5927),
+ regmap_reg_range(0x5a00, 0x5a03),
+ regmap_reg_range(0x5a04, 0x5a07),
+ regmap_reg_range(0x5b00, 0x5b01),
+ regmap_reg_range(0x5b04, 0x5b04),
+ regmap_reg_range(0x5c00, 0x5c05),
+ regmap_reg_range(0x5c08, 0x5c1b),
+
+ /* port 6 */
+ regmap_reg_range(0x6000, 0x6001),
+ regmap_reg_range(0x6013, 0x6013),
+ regmap_reg_range(0x6017, 0x6017),
+ regmap_reg_range(0x601b, 0x601b),
+ regmap_reg_range(0x601f, 0x6020),
+ regmap_reg_range(0x6030, 0x6030),
+ regmap_reg_range(0x6300, 0x6301),
+ regmap_reg_range(0x6400, 0x6401),
+ regmap_reg_range(0x6403, 0x6403),
+ regmap_reg_range(0x6410, 0x6417),
+ regmap_reg_range(0x6420, 0x6423),
+ regmap_reg_range(0x6500, 0x6507),
+ regmap_reg_range(0x6600, 0x6613),
+ regmap_reg_range(0x6800, 0x680f),
+ regmap_reg_range(0x6820, 0x6827),
+ regmap_reg_range(0x6830, 0x6837),
+ regmap_reg_range(0x6840, 0x684b),
+ regmap_reg_range(0x6900, 0x6907),
+ regmap_reg_range(0x6914, 0x691b),
+ regmap_reg_range(0x6920, 0x6920),
+ regmap_reg_range(0x6923, 0x6927),
+ regmap_reg_range(0x6a00, 0x6a03),
+ regmap_reg_range(0x6a04, 0x6a07),
+ regmap_reg_range(0x6b00, 0x6b01),
+ regmap_reg_range(0x6b04, 0x6b04),
+ regmap_reg_range(0x6c00, 0x6c05),
+ regmap_reg_range(0x6c08, 0x6c1b),
+
+ /* port 7 */
+ regmap_reg_range(0x7000, 0x7001),
+ regmap_reg_range(0x7013, 0x7013),
+ regmap_reg_range(0x7017, 0x7017),
+ regmap_reg_range(0x701b, 0x701b),
+ regmap_reg_range(0x701f, 0x7020),
+ regmap_reg_range(0x7030, 0x7030),
+ regmap_reg_range(0x7200, 0x7203),
+ regmap_reg_range(0x7206, 0x7207),
+ regmap_reg_range(0x7300, 0x7301),
+ regmap_reg_range(0x7400, 0x7401),
+ regmap_reg_range(0x7403, 0x7403),
+ regmap_reg_range(0x7410, 0x7417),
+ regmap_reg_range(0x7420, 0x7423),
+ regmap_reg_range(0x7500, 0x7507),
+ regmap_reg_range(0x7600, 0x7613),
+ regmap_reg_range(0x7800, 0x780f),
+ regmap_reg_range(0x7820, 0x7827),
+ regmap_reg_range(0x7830, 0x7837),
+ regmap_reg_range(0x7840, 0x784b),
+ regmap_reg_range(0x7900, 0x7907),
+ regmap_reg_range(0x7914, 0x791b),
+ regmap_reg_range(0x7920, 0x7920),
+ regmap_reg_range(0x7923, 0x7927),
+ regmap_reg_range(0x7a00, 0x7a03),
+ regmap_reg_range(0x7a04, 0x7a07),
+ regmap_reg_range(0x7b00, 0x7b01),
+ regmap_reg_range(0x7b04, 0x7b04),
+ regmap_reg_range(0x7c00, 0x7c05),
+ regmap_reg_range(0x7c08, 0x7c1b),
+};
+
+static const struct regmap_access_table ksz9477_register_set = {
+ .yes_ranges = ksz9477_valid_regs,
+ .n_yes_ranges = ARRAY_SIZE(ksz9477_valid_regs),
+};
+
const struct ksz_chip_data ksz_switch_chips[] = {
[KSZ8563] = {
.chip_id = KSZ8563_CHIP_ID,
@@ -691,6 +961,8 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.internal_phy = {true, true, true, true,
true, false, false},
.gbit_capable = {true, true, true, true, true, true, true},
+ .wr_table = &ksz9477_register_set,
+ .rd_table = &ksz9477_register_set,
},
[KSZ9897] = {
--
2.30.2
Now ksz_pread/ksz_pwrite can return error value. So, make use of it.
Signed-off-by: Oleksij Rempel <[email protected]>
---
drivers/net/dsa/microchip/ksz9477.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index d986be78183c4..13c4ded84b1db 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -278,6 +278,7 @@ static void ksz9477_r_phy_quirks(struct ksz_device *dev, u16 addr, u16 reg,
int ksz9477_r_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 *data)
{
u16 val = 0xffff;
+ int ret;
/* No real PHY after this. Simulate the PHY.
* A fixed PHY can be setup in the device tree, but this function is
@@ -318,7 +319,10 @@ int ksz9477_r_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 *data)
break;
}
} else {
- ksz_pread16(dev, addr, 0x100 + (reg << 1), &val);
+ ret = ksz_pread16(dev, addr, 0x100 + (reg << 1), &val);
+ if (ret)
+ return ret;
+
ksz9477_r_phy_quirks(dev, addr, reg, &val);
}
@@ -335,11 +339,9 @@ int ksz9477_w_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 val)
/* No gigabit support. Do not write to this register. */
if (!(dev->features & GBIT_SUPPORT) && reg == MII_CTRL1000)
- return 0;
+ return -ENXIO;
- ksz_pwrite16(dev, addr, 0x100 + (reg << 1), val);
-
- return 0;
+ return ksz_pwrite16(dev, addr, 0x100 + (reg << 1), val);
}
void ksz9477_cfg_port_member(struct ksz_device *dev, int port, u8 member)
--
2.30.2
Add separate entry for the KSZ8563 chip. According to the documentation
it can support Gbit only on RGMII port. So, we will need to be able to
describe in the followup patch.
Signed-off-by: Oleksij Rempel <[email protected]>
---
drivers/net/dsa/microchip/ksz_common.c | 39 ++++++++++++++++++++++++--
drivers/net/dsa/microchip/ksz_common.h | 6 ++++
drivers/net/dsa/microchip/ksz_spi.c | 2 +-
3 files changed, 44 insertions(+), 3 deletions(-)
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index ed7d137cba994..170c05cc0687a 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -413,6 +413,29 @@ static const u8 lan937x_shifts[] = {
};
const struct ksz_chip_data ksz_switch_chips[] = {
+ [KSZ8563] = {
+ .chip_id = KSZ8563_CHIP_ID,
+ .dev_name = "KSZ8563",
+ .num_vlans = 4096,
+ .num_alus = 4096,
+ .num_statics = 16,
+ .cpu_ports = 0x07, /* can be configured as cpu port */
+ .port_cnt = 3, /* total port count */
+ .ops = &ksz9477_dev_ops,
+ .mib_names = ksz9477_mib_names,
+ .mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
+ .reg_mib_cnt = MIB_COUNTER_NUM,
+ .regs = ksz9477_regs,
+ .masks = ksz9477_masks,
+ .shifts = ksz9477_shifts,
+ .xmii_ctrl0 = ksz9477_xmii_ctrl0,
+ .xmii_ctrl1 = ksz8795_xmii_ctrl1, /* Same as ksz8795 */
+ .supports_mii = {false, false, true},
+ .supports_rmii = {false, false, true},
+ .supports_rgmii = {false, false, true},
+ .internal_phy = {true, true, false},
+ },
+
[KSZ8795] = {
.chip_id = KSZ8795_CHIP_ID,
.dev_name = "KSZ8795",
@@ -1319,6 +1342,7 @@ static enum dsa_tag_protocol ksz_get_tag_protocol(struct dsa_switch *ds,
proto = DSA_TAG_PROTO_KSZ8795;
if (dev->chip_id == KSZ8830_CHIP_ID ||
+ dev->chip_id == KSZ8563_CHIP_ID ||
dev->chip_id == KSZ9893_CHIP_ID)
proto = DSA_TAG_PROTO_KSZ9893;
@@ -1638,7 +1662,7 @@ static void ksz_phylink_mac_link_up(struct dsa_switch *ds, int port,
static int ksz_switch_detect(struct ksz_device *dev)
{
- u8 id1, id2;
+ u8 id1, id2, id4;
u16 id16;
u32 id32;
int ret;
@@ -1684,7 +1708,6 @@ static int ksz_switch_detect(struct ksz_device *dev)
switch (id32) {
case KSZ9477_CHIP_ID:
case KSZ9897_CHIP_ID:
- case KSZ9893_CHIP_ID:
case KSZ9567_CHIP_ID:
case LAN9370_CHIP_ID:
case LAN9371_CHIP_ID:
@@ -1692,6 +1715,18 @@ static int ksz_switch_detect(struct ksz_device *dev)
case LAN9373_CHIP_ID:
case LAN9374_CHIP_ID:
dev->chip_id = id32;
+ break;
+ case KSZ9893_CHIP_ID:
+ ret = ksz_read8(dev, REG_CHIP_ID4,
+ &id4);
+ if (ret)
+ return ret;
+
+ if (id4 == SKU_ID_KSZ8563)
+ dev->chip_id = KSZ8563_CHIP_ID;
+ else
+ dev->chip_id = KSZ9893_CHIP_ID;
+
break;
default:
dev_err(dev->dev,
diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h
index 764ada3a0f42a..2b3877d4ef46f 100644
--- a/drivers/net/dsa/microchip/ksz_common.h
+++ b/drivers/net/dsa/microchip/ksz_common.h
@@ -123,6 +123,7 @@ struct ksz_device {
/* List of supported models */
enum ksz_model {
+ KSZ8563,
KSZ8795,
KSZ8794,
KSZ8765,
@@ -139,6 +140,7 @@ enum ksz_model {
};
enum ksz_chip_id {
+ KSZ8563_CHIP_ID = 0x8563,
KSZ8795_CHIP_ID = 0x8795,
KSZ8794_CHIP_ID = 0x8794,
KSZ8765_CHIP_ID = 0x8765,
@@ -482,6 +484,10 @@ static inline int is_lan937x(struct ksz_device *dev)
#define SW_REV_ID_M GENMASK(7, 4)
+/* KSZ9893, KSZ9563, KSZ8563 specific register */
+#define REG_CHIP_ID4 0x0f
+#define SKU_ID_KSZ8563 0x3c
+
/* Driver set switch broadcast storm protection at 10% rate. */
#define BROADCAST_STORM_PROT_RATE 10
diff --git a/drivers/net/dsa/microchip/ksz_spi.c b/drivers/net/dsa/microchip/ksz_spi.c
index 05bd089795f83..746b725b09ec4 100644
--- a/drivers/net/dsa/microchip/ksz_spi.c
+++ b/drivers/net/dsa/microchip/ksz_spi.c
@@ -160,7 +160,7 @@ static const struct of_device_id ksz_dt_ids[] = {
},
{
.compatible = "microchip,ksz8563",
- .data = &ksz_switch_chips[KSZ9893]
+ .data = &ksz_switch_chips[KSZ8563]
},
{
.compatible = "microchip,ksz9567",
--
2.30.2
PHY access may end with errors on different levels. So, allow to forward
return values where possible.
Signed-off-by: Oleksij Rempel <[email protected]>
---
drivers/net/dsa/microchip/ksz8.h | 4 ++--
drivers/net/dsa/microchip/ksz8795.c | 8 ++++++--
drivers/net/dsa/microchip/ksz9477.c | 12 ++++++++----
drivers/net/dsa/microchip/ksz9477.h | 4 ++--
drivers/net/dsa/microchip/ksz_common.c | 10 ++++++++--
drivers/net/dsa/microchip/ksz_common.h | 4 ++--
drivers/net/dsa/microchip/lan937x.h | 4 ++--
drivers/net/dsa/microchip/lan937x_main.c | 8 ++++----
8 files changed, 34 insertions(+), 20 deletions(-)
diff --git a/drivers/net/dsa/microchip/ksz8.h b/drivers/net/dsa/microchip/ksz8.h
index 42c50cc4d8536..8582b4b67d989 100644
--- a/drivers/net/dsa/microchip/ksz8.h
+++ b/drivers/net/dsa/microchip/ksz8.h
@@ -17,8 +17,8 @@ u32 ksz8_get_port_addr(int port, int offset);
void ksz8_cfg_port_member(struct ksz_device *dev, int port, u8 member);
void ksz8_flush_dyn_mac_table(struct ksz_device *dev, int port);
void ksz8_port_setup(struct ksz_device *dev, int port, bool cpu_port);
-void ksz8_r_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 *val);
-void ksz8_w_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 val);
+int ksz8_r_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 *val);
+int ksz8_w_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 val);
int ksz8_r_dyn_mac_table(struct ksz_device *dev, u16 addr, u8 *mac_addr,
u8 *fid, u8 *src_port, u8 *timestamp, u16 *entries);
int ksz8_r_sta_mac_table(struct ksz_device *dev, u16 addr,
diff --git a/drivers/net/dsa/microchip/ksz8795.c b/drivers/net/dsa/microchip/ksz8795.c
index c79a5128235f9..f2dd75ee0e075 100644
--- a/drivers/net/dsa/microchip/ksz8795.c
+++ b/drivers/net/dsa/microchip/ksz8795.c
@@ -552,7 +552,7 @@ static void ksz8_w_vlan_table(struct ksz_device *dev, u16 vid, u16 vlan)
ksz8_w_table(dev, TABLE_VLAN, addr, buf);
}
-void ksz8_r_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 *val)
+int ksz8_r_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 *val)
{
u8 restart, speed, ctrl, link;
int processed = true;
@@ -674,9 +674,11 @@ void ksz8_r_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 *val)
}
if (processed)
*val = data;
+
+ return 0;
}
-void ksz8_w_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 val)
+int ksz8_w_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 val)
{
u8 restart, speed, ctrl, data;
const u16 *regs;
@@ -787,6 +789,8 @@ void ksz8_w_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 val)
default:
break;
}
+
+ return 0;
}
void ksz8_cfg_port_member(struct ksz_device *dev, int port, u8 member)
diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index e1702ff04b858..d986be78183c4 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -275,7 +275,7 @@ static void ksz9477_r_phy_quirks(struct ksz_device *dev, u16 addr, u16 reg,
*data &= ~(BMSR_ESTATEN | BMSR_ERCAP);
}
-void ksz9477_r_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 *data)
+int ksz9477_r_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 *data)
{
u16 val = 0xffff;
@@ -323,19 +323,23 @@ void ksz9477_r_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 *data)
}
*data = val;
+
+ return 0;
}
-void ksz9477_w_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 val)
+int ksz9477_w_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 val)
{
/* No real PHY after this. */
if (addr >= dev->phy_port_cnt)
- return;
+ return 0;
/* No gigabit support. Do not write to this register. */
if (!(dev->features & GBIT_SUPPORT) && reg == MII_CTRL1000)
- return;
+ return 0;
ksz_pwrite16(dev, addr, 0x100 + (reg << 1), val);
+
+ return 0;
}
void ksz9477_cfg_port_member(struct ksz_device *dev, int port, u8 member)
diff --git a/drivers/net/dsa/microchip/ksz9477.h b/drivers/net/dsa/microchip/ksz9477.h
index cd278b307b3c7..ce87e4e09ada8 100644
--- a/drivers/net/dsa/microchip/ksz9477.h
+++ b/drivers/net/dsa/microchip/ksz9477.h
@@ -16,8 +16,8 @@ u32 ksz9477_get_port_addr(int port, int offset);
void ksz9477_cfg_port_member(struct ksz_device *dev, int port, u8 member);
void ksz9477_flush_dyn_mac_table(struct ksz_device *dev, int port);
void ksz9477_port_setup(struct ksz_device *dev, int port, bool cpu_port);
-void ksz9477_r_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 *data);
-void ksz9477_w_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 val);
+int ksz9477_r_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 *data);
+int ksz9477_w_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 val);
void ksz9477_r_mib_cnt(struct ksz_device *dev, int port, u16 addr, u64 *cnt);
void ksz9477_r_mib_pkt(struct ksz_device *dev, int port, u16 addr,
u64 *dropped, u64 *cnt);
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index 816438d2ed640..089570e18fb7c 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -1117,8 +1117,11 @@ static int ksz_phy_read16(struct dsa_switch *ds, int addr, int reg)
{
struct ksz_device *dev = ds->priv;
u16 val = 0xffff;
+ int ret;
- dev->dev_ops->r_phy(dev, addr, reg, &val);
+ ret = dev->dev_ops->r_phy(dev, addr, reg, &val);
+ if (ret)
+ return ret;
return val;
}
@@ -1126,8 +1129,11 @@ static int ksz_phy_read16(struct dsa_switch *ds, int addr, int reg)
static int ksz_phy_write16(struct dsa_switch *ds, int addr, int reg, u16 val)
{
struct ksz_device *dev = ds->priv;
+ int ret;
- dev->dev_ops->w_phy(dev, addr, reg, val);
+ ret = dev->dev_ops->w_phy(dev, addr, reg, val);
+ if (ret)
+ return ret;
return 0;
}
diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h
index aaa6a910d0819..baaeb60533faf 100644
--- a/drivers/net/dsa/microchip/ksz_common.h
+++ b/drivers/net/dsa/microchip/ksz_common.h
@@ -261,8 +261,8 @@ struct ksz_dev_ops {
void (*flush_dyn_mac_table)(struct ksz_device *dev, int port);
void (*port_cleanup)(struct ksz_device *dev, int port);
void (*port_setup)(struct ksz_device *dev, int port, bool cpu_port);
- void (*r_phy)(struct ksz_device *dev, u16 phy, u16 reg, u16 *val);
- void (*w_phy)(struct ksz_device *dev, u16 phy, u16 reg, u16 val);
+ int (*r_phy)(struct ksz_device *dev, u16 phy, u16 reg, u16 *val);
+ int (*w_phy)(struct ksz_device *dev, u16 phy, u16 reg, u16 val);
void (*r_mib_cnt)(struct ksz_device *dev, int port, u16 addr,
u64 *cnt);
void (*r_mib_pkt)(struct ksz_device *dev, int port, u16 addr,
diff --git a/drivers/net/dsa/microchip/lan937x.h b/drivers/net/dsa/microchip/lan937x.h
index 4e0b1dccec270..5d78d034a62f1 100644
--- a/drivers/net/dsa/microchip/lan937x.h
+++ b/drivers/net/dsa/microchip/lan937x.h
@@ -12,8 +12,8 @@ void lan937x_port_setup(struct ksz_device *dev, int port, bool cpu_port);
void lan937x_config_cpu_port(struct dsa_switch *ds);
int lan937x_switch_init(struct ksz_device *dev);
void lan937x_switch_exit(struct ksz_device *dev);
-void lan937x_r_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 *data);
-void lan937x_w_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 val);
+int lan937x_r_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 *data);
+int lan937x_w_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 val);
int lan937x_change_mtu(struct ksz_device *dev, int port, int new_mtu);
void lan937x_phylink_get_caps(struct ksz_device *dev, int port,
struct phylink_config *config);
diff --git a/drivers/net/dsa/microchip/lan937x_main.c b/drivers/net/dsa/microchip/lan937x_main.c
index daedd2bf20c1b..7b464f1fb5d88 100644
--- a/drivers/net/dsa/microchip/lan937x_main.c
+++ b/drivers/net/dsa/microchip/lan937x_main.c
@@ -128,14 +128,14 @@ static int lan937x_internal_phy_read(struct ksz_device *dev, int addr, int reg,
return ksz_read16(dev, REG_VPHY_IND_DATA__2, val);
}
-void lan937x_r_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 *data)
+int lan937x_r_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 *data)
{
- lan937x_internal_phy_read(dev, addr, reg, data);
+ return lan937x_internal_phy_read(dev, addr, reg, data);
}
-void lan937x_w_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 val)
+int lan937x_w_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 val)
{
- lan937x_internal_phy_write(dev, addr, reg, val);
+ return lan937x_internal_phy_write(dev, addr, reg, val);
}
static int lan937x_sw_mdio_read(struct mii_bus *bus, int addr, int regnum)
--
2.30.2
KSZ8563 has two 100Mbit PHYs and CPU port with RGMII support. Since
1000Mbit configuration for the RGMII capable MAC is present, we should
use per port validation.
As main part of migration to per-port validation we need to rework
ksz9477_switch_init() function. Which is using undocumented REG_GLOBAL_OPTIONS
register to detect per-chip Gbit support. So, it is related to some sort
of risk for regressions.
To reduce this risk I compared the code with publicly available
documentations. This function will executed on following currently supported
chips:
struct ksz_chip_data OF compatible
KSZ9477 KSZ9477
KSZ9897 KSZ9897
KSZ9893 KSZ9893, KSZ9563
KSZ8563 KSZ8563
KSZ9567 KSZ9567
Only KSZ9893, KSZ9563, KSZ8563 document existence of 0xf == REG_GLOBAL_OPTIONS
register with bit field description "SKU ID":
KSZ9893 0x0C
KSZ9563 0x1C
KSZ8563 0x3C
The existence of hidden flags is not documented.
KSZ9477, KSZ9897, KSZ9567 do not document this register at all.
Only KSZ8563 is documented as non Gbit chip: 100Mbit PHYs and RGMII CPU
port. So, this change should not introduce a regression for
configurations with properly used OF compatibles.
Signed-off-by: Oleksij Rempel <[email protected]>
---
drivers/net/dsa/microchip/ksz9477.c | 18 ++----------------
drivers/net/dsa/microchip/ksz_common.c | 5 +++++
drivers/net/dsa/microchip/ksz_common.h | 2 +-
3 files changed, 8 insertions(+), 17 deletions(-)
diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index e4f446db0ca18..17c39d27c6d3b 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -914,7 +914,7 @@ static void ksz9477_phy_errata_setup(struct ksz_device *dev, int port)
/* Energy Efficient Ethernet (EEE) feature select must
* be manually disabled (except on KSZ8565 which is 100Mbit)
*/
- if (dev->features & GBIT_SUPPORT)
+ if (dev->info->gbit_capable[port])
ksz9477_port_mmd_write(dev, port, 0x07, 0x3c, 0x0000);
/* Register settings are required to meet data sheet
@@ -941,7 +941,7 @@ void ksz9477_get_caps(struct ksz_device *dev, int port,
config->mac_capabilities = MAC_10 | MAC_100 | MAC_ASYM_PAUSE |
MAC_SYM_PAUSE;
- if (dev->features & GBIT_SUPPORT)
+ if (dev->info->gbit_capable[port])
config->mac_capabilities |= MAC_1000FD;
}
@@ -1158,27 +1158,13 @@ int ksz9477_switch_init(struct ksz_device *dev)
if (ret)
return ret;
- ret = ksz_read8(dev, REG_GLOBAL_OPTIONS, &data8);
- if (ret)
- return ret;
-
/* Number of ports can be reduced depending on chip. */
dev->phy_port_cnt = 5;
- /* Default capability is gigabit capable. */
- dev->features = GBIT_SUPPORT;
-
if (dev->chip_id == KSZ9893_CHIP_ID) {
dev->features |= IS_9893;
- /* Chip does not support gigabit. */
- if (data8 & SW_QW_ABLE)
- dev->features &= ~GBIT_SUPPORT;
dev->phy_port_cnt = 2;
- } else {
- /* Chip does not support gigabit. */
- if (!(data8 & SW_GIGABIT_ABLE))
- dev->features &= ~GBIT_SUPPORT;
}
return 0;
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index 170c05cc0687a..816438d2ed640 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -434,6 +434,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.supports_rmii = {false, false, true},
.supports_rgmii = {false, false, true},
.internal_phy = {true, true, false},
+ .gbit_capable = {false, false, true},
},
[KSZ8795] = {
@@ -568,6 +569,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
false, true, false},
.internal_phy = {true, true, true, true,
true, false, false},
+ .gbit_capable = {true, true, true, true, true, true, true},
},
[KSZ9897] = {
@@ -596,6 +598,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
false, true, true},
.internal_phy = {true, true, true, true,
true, false, false},
+ .gbit_capable = {true, true, true, true, true, true, true},
},
[KSZ9893] = {
@@ -619,6 +622,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.supports_rmii = {false, false, true},
.supports_rgmii = {false, false, true},
.internal_phy = {true, true, false},
+ .gbit_capable = {true, true, true},
},
[KSZ9567] = {
@@ -647,6 +651,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
false, true, true},
.internal_phy = {true, true, true, true,
true, false, false},
+ .gbit_capable = {true, true, true, true, true, true, true},
},
[LAN9370] = {
diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h
index 2b3877d4ef46f..aaa6a910d0819 100644
--- a/drivers/net/dsa/microchip/ksz_common.h
+++ b/drivers/net/dsa/microchip/ksz_common.h
@@ -61,6 +61,7 @@ struct ksz_chip_data {
bool supports_rmii[KSZ_MAX_NUM_PORTS];
bool supports_rgmii[KSZ_MAX_NUM_PORTS];
bool internal_phy[KSZ_MAX_NUM_PORTS];
+ bool gbit_capable[KSZ_MAX_NUM_PORTS];
};
struct ksz_port {
@@ -503,7 +504,6 @@ static inline int is_lan937x(struct ksz_device *dev)
#define SW_START 0x01
/* Used with variable features to indicate capabilities. */
-#define GBIT_SUPPORT BIT(0)
#define IS_9893 BIT(2)
/* xMII configuration */
--
2.30.2
ksz_read*/ksz_write* are able to return errors, so forward it.
Signed-off-by: Oleksij Rempel <[email protected]>
Reviewed-by: Vladimir Oltean <[email protected]>
---
drivers/net/dsa/microchip/ksz_common.h | 26 ++++++++++++++------------
1 file changed, 14 insertions(+), 12 deletions(-)
diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h
index baaeb60533faf..be0e5d6ef2bf0 100644
--- a/drivers/net/dsa/microchip/ksz_common.h
+++ b/drivers/net/dsa/microchip/ksz_common.h
@@ -393,40 +393,42 @@ static inline int ksz_write64(struct ksz_device *dev, u32 reg, u64 value)
return regmap_bulk_write(dev->regmap[2], reg, val, 2);
}
-static inline void ksz_pread8(struct ksz_device *dev, int port, int offset,
+static inline int ksz_pread8(struct ksz_device *dev, int port, int offset,
u8 *data)
{
- ksz_read8(dev, dev->dev_ops->get_port_addr(port, offset), data);
+ return ksz_read8(dev, dev->dev_ops->get_port_addr(port, offset), data);
}
-static inline void ksz_pread16(struct ksz_device *dev, int port, int offset,
+static inline int ksz_pread16(struct ksz_device *dev, int port, int offset,
u16 *data)
{
- ksz_read16(dev, dev->dev_ops->get_port_addr(port, offset), data);
+ return ksz_read16(dev, dev->dev_ops->get_port_addr(port, offset), data);
}
-static inline void ksz_pread32(struct ksz_device *dev, int port, int offset,
+static inline int ksz_pread32(struct ksz_device *dev, int port, int offset,
u32 *data)
{
- ksz_read32(dev, dev->dev_ops->get_port_addr(port, offset), data);
+ return ksz_read32(dev, dev->dev_ops->get_port_addr(port, offset), data);
}
-static inline void ksz_pwrite8(struct ksz_device *dev, int port, int offset,
+static inline int ksz_pwrite8(struct ksz_device *dev, int port, int offset,
u8 data)
{
- ksz_write8(dev, dev->dev_ops->get_port_addr(port, offset), data);
+ return ksz_write8(dev, dev->dev_ops->get_port_addr(port, offset), data);
}
-static inline void ksz_pwrite16(struct ksz_device *dev, int port, int offset,
+static inline int ksz_pwrite16(struct ksz_device *dev, int port, int offset,
u16 data)
{
- ksz_write16(dev, dev->dev_ops->get_port_addr(port, offset), data);
+ return ksz_write16(dev, dev->dev_ops->get_port_addr(port, offset),
+ data);
}
-static inline void ksz_pwrite32(struct ksz_device *dev, int port, int offset,
+static inline int ksz_pwrite32(struct ksz_device *dev, int port, int offset,
u32 data)
{
- ksz_write32(dev, dev->dev_ops->get_port_addr(port, offset), data);
+ return ksz_write32(dev, dev->dev_ops->get_port_addr(port, offset),
+ data);
}
static inline void ksz_prmw8(struct ksz_device *dev, int port, int offset,
--
2.30.2
Use chip_id as other places of this code do it
Signed-off-by: Oleksij Rempel <[email protected]>
---
drivers/net/dsa/microchip/ksz9477.c | 3 ---
drivers/net/dsa/microchip/ksz_common.c | 3 ++-
drivers/net/dsa/microchip/ksz_common.h | 4 ----
3 files changed, 2 insertions(+), 8 deletions(-)
diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index 1dae75af8e1b9..6f857922eb3e2 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -1165,9 +1165,6 @@ int ksz9477_switch_init(struct ksz_device *dev)
if (ret)
return ret;
- if (dev->chip_id == KSZ9893_CHIP_ID)
- dev->features |= IS_9893;
-
return 0;
}
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index a863d4feb4135..08491a67dc359 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -1865,7 +1865,8 @@ static void ksz_set_xmii(struct ksz_device *dev, int port,
case PHY_INTERFACE_MODE_RGMII_RXID:
data8 |= bitval[P_RGMII_SEL];
/* On KSZ9893, disable RGMII in-band status support */
- if (dev->features & IS_9893)
+ if (dev->chip_id == KSZ9893_CHIP_ID ||
+ dev->chip_id == KSZ8563_CHIP_ID)
data8 &= ~P_MII_MAC_MODE;
break;
default:
diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h
index 1b327bca1fb88..54c1cba35a9d8 100644
--- a/drivers/net/dsa/microchip/ksz_common.h
+++ b/drivers/net/dsa/microchip/ksz_common.h
@@ -118,7 +118,6 @@ struct ksz_device {
unsigned long mib_read_interval;
u16 mirror_rx;
u16 mirror_tx;
- u32 features; /* chip specific features */
u16 port_mask;
};
@@ -541,9 +540,6 @@ static inline int is_lan937x(struct ksz_device *dev)
#define SW_START 0x01
-/* Used with variable features to indicate capabilities. */
-#define IS_9893 BIT(2)
-
/* xMII configuration */
#define P_MII_DUPLEX_M BIT(6)
#define P_MII_100MBIT_M BIT(4)
--
2.30.2
This variable is not used on ksz9477 side. Remove it.
Signed-off-by: Oleksij Rempel <[email protected]>
---
drivers/net/dsa/microchip/ksz9477.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index bfefb60ec91bf..609bd63f4cdb1 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -1070,7 +1070,6 @@ void ksz9477_config_cpu_port(struct dsa_switch *ds)
/* enable cpu port */
ksz9477_port_setup(dev, i, true);
- p->on = 1;
}
}
@@ -1080,7 +1079,6 @@ void ksz9477_config_cpu_port(struct dsa_switch *ds)
p = &dev->ports[i];
ksz_port_stp_state_set(ds, i, BR_STATE_DISABLED);
- p->on = 1;
if (dev->chip_id == 0x00947700 && i == 6) {
p->sgmii = 1;
}
--
2.30.2
This is complex driver with support for different chips with different
layouts. To detect at least some bugs earlier, we should validate register
accesses by using regmap_access_table support.
Signed-off-by: Oleksij Rempel <[email protected]>
---
drivers/net/dsa/microchip/ksz_common.h | 46 +++++++++++++++++++++++---
drivers/net/dsa/microchip/ksz_spi.c | 3 ++
2 files changed, 45 insertions(+), 4 deletions(-)
diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h
index be0e5d6ef2bf0..769b3ec45a3b5 100644
--- a/drivers/net/dsa/microchip/ksz_common.h
+++ b/drivers/net/dsa/microchip/ksz_common.h
@@ -62,6 +62,8 @@ struct ksz_chip_data {
bool supports_rgmii[KSZ_MAX_NUM_PORTS];
bool internal_phy[KSZ_MAX_NUM_PORTS];
bool gbit_capable[KSZ_MAX_NUM_PORTS];
+ const struct regmap_access_table *wr_table;
+ const struct regmap_access_table *rd_table;
};
struct ksz_port {
@@ -332,6 +334,10 @@ static inline int ksz_read8(struct ksz_device *dev, u32 reg, u8 *val)
unsigned int value;
int ret = regmap_read(dev->regmap[0], reg, &value);
+ if (ret)
+ dev_err(dev->dev, "can't read 8bit reg: 0x%x %pe \n", reg,
+ ERR_PTR(ret));
+
*val = value;
return ret;
}
@@ -341,6 +347,10 @@ static inline int ksz_read16(struct ksz_device *dev, u32 reg, u16 *val)
unsigned int value;
int ret = regmap_read(dev->regmap[1], reg, &value);
+ if (ret)
+ dev_err(dev->dev, "can't read 16bit reg: 0x%x %pe \n", reg,
+ ERR_PTR(ret));
+
*val = value;
return ret;
}
@@ -350,6 +360,10 @@ static inline int ksz_read32(struct ksz_device *dev, u32 reg, u32 *val)
unsigned int value;
int ret = regmap_read(dev->regmap[2], reg, &value);
+ if (ret)
+ dev_err(dev->dev, "can't read 32bit reg: 0x%x %pe \n", reg,
+ ERR_PTR(ret));
+
*val = value;
return ret;
}
@@ -360,7 +374,10 @@ static inline int ksz_read64(struct ksz_device *dev, u32 reg, u64 *val)
int ret;
ret = regmap_bulk_read(dev->regmap[2], reg, value, 2);
- if (!ret)
+ if (ret)
+ dev_err(dev->dev, "can't read 64bit reg: 0x%x %pe \n", reg,
+ ERR_PTR(ret));
+ else
*val = (u64)value[0] << 32 | value[1];
return ret;
@@ -368,17 +385,38 @@ static inline int ksz_read64(struct ksz_device *dev, u32 reg, u64 *val)
static inline int ksz_write8(struct ksz_device *dev, u32 reg, u8 value)
{
- return regmap_write(dev->regmap[0], reg, value);
+ int ret;
+
+ ret = regmap_write(dev->regmap[0], reg, value);
+ if (ret)
+ dev_err(dev->dev, "can't write 8bit reg: 0x%x %pe \n", reg,
+ ERR_PTR(ret));
+
+ return ret;
}
static inline int ksz_write16(struct ksz_device *dev, u32 reg, u16 value)
{
- return regmap_write(dev->regmap[1], reg, value);
+ int ret;
+
+ ret = regmap_write(dev->regmap[1], reg, value);
+ if (ret)
+ dev_err(dev->dev, "can't write 16bit reg: 0x%x %pe \n", reg,
+ ERR_PTR(ret));
+
+ return ret;
}
static inline int ksz_write32(struct ksz_device *dev, u32 reg, u32 value)
{
- return regmap_write(dev->regmap[2], reg, value);
+ int ret;
+
+ ret = regmap_write(dev->regmap[2], reg, value);
+ if (ret)
+ dev_err(dev->dev, "can't write 32bit reg: 0x%x %pe \n", reg,
+ ERR_PTR(ret));
+
+ return ret;
}
static inline int ksz_write64(struct ksz_device *dev, u32 reg, u64 value)
diff --git a/drivers/net/dsa/microchip/ksz_spi.c b/drivers/net/dsa/microchip/ksz_spi.c
index 746b725b09ec4..44c2d99124066 100644
--- a/drivers/net/dsa/microchip/ksz_spi.c
+++ b/drivers/net/dsa/microchip/ksz_spi.c
@@ -66,7 +66,10 @@ static int ksz_spi_probe(struct spi_device *spi)
for (i = 0; i < ARRAY_SIZE(ksz8795_regmap_config); i++) {
rc = regmap_config[i];
rc.lock_arg = &dev->regmap_mutex;
+ rc.wr_table = chip->wr_table;
+ rc.rd_table = chip->rd_table;
dev->regmap[i] = devm_regmap_init_spi(spi, &rc);
+
if (IS_ERR(dev->regmap[i])) {
ret = PTR_ERR(dev->regmap[i]);
dev_err(&spi->dev,
--
2.30.2
This issue was detected after adding support of regmap_ranges for KSZ8563R
chip. This chip is reporting extended registers support without having
actual extended registers. This made PHYlib request not existing
registers.
Signed-off-by: Oleksij Rempel <[email protected]>
---
drivers/net/dsa/microchip/ksz9477.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index 17c39d27c6d3b..e1702ff04b858 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -264,6 +264,17 @@ void ksz9477_port_init_cnt(struct ksz_device *dev, int port)
mutex_unlock(&mib->cnt_mutex);
}
+
+static void ksz9477_r_phy_quirks(struct ksz_device *dev, u16 addr, u16 reg,
+ u16 *data)
+{
+ /* KSZ8563R do not have extended registers but BMSR_ESTATEN and
+ * BMSR_ERCAP bits are set.
+ */
+ if (dev->chip_id == KSZ8563_CHIP_ID && reg == MII_BMSR)
+ *data &= ~(BMSR_ESTATEN | BMSR_ERCAP);
+}
+
void ksz9477_r_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 *data)
{
u16 val = 0xffff;
@@ -308,6 +319,7 @@ void ksz9477_r_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 *data)
}
} else {
ksz_pread16(dev, addr, 0x100 + (reg << 1), &val);
+ ksz9477_r_phy_quirks(dev, addr, reg, &val);
}
*data = val;
--
2.30.2
This variable is not used. So, remove it.
Signed-off-by: Oleksij Rempel <[email protected]>
---
drivers/net/dsa/microchip/ksz9477.c | 5 -----
drivers/net/dsa/microchip/ksz_common.h | 1 -
2 files changed, 6 deletions(-)
diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index 609bd63f4cdb1..1dae75af8e1b9 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -1076,12 +1076,7 @@ void ksz9477_config_cpu_port(struct dsa_switch *ds)
for (i = 0; i < dev->info->port_cnt; i++) {
if (i == dev->cpu_port)
continue;
- p = &dev->ports[i];
-
ksz_port_stp_state_set(ds, i, BR_STATE_DISABLED);
- if (dev->chip_id == 0x00947700 && i == 6) {
- p->sgmii = 1;
- }
}
}
diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h
index 5b4970072c380..1b327bca1fb88 100644
--- a/drivers/net/dsa/microchip/ksz_common.h
+++ b/drivers/net/dsa/microchip/ksz_common.h
@@ -73,7 +73,6 @@ struct ksz_port {
u32 on:1; /* port is not disabled by hardware */
u32 fiber:1; /* port is fiber */
- u32 sgmii:1; /* port is SGMII */
u32 force:1;
u32 read:1; /* read MIB counters in background */
u32 freeze:1; /* MIB counter freeze is enabled */
--
2.30.2
On Mon, 22 Aug 2022 13:03:41 +0200 Oleksij Rempel wrote:
> changes v2:
> - add regmap_ranges for KSZ9477
> - drop output clock devicetree in driver validation patches. DTs need
> some more refactoring and can be done in a separate patch set.
> - remove some unused variables.
>
> This patch series adds error handling for the PHY read/write path and optional
> register access validation.
> After adding regmap_ranges for KSZ8563 some bugs was detected, so
> critical bug fixes are sorted before ragmap_range patch.
>
> Potentially this bug fixes can be ported to stable kernels, but need to be
> reworked.
This does not build in a fairly obvious way between patches 2 and 11 :(
Please make sure you do some form of a
git rebase --exec='make W=1 O=build_allmodconfig/'
where build_allmodconfig is a dir configured with make allmodconfig.
*Especially* when posting a large series.