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path: root/drivers/net/dsa/microchip/ksz_common.c
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Diffstat (limited to 'drivers/net/dsa/microchip/ksz_common.c')
-rw-r--r--drivers/net/dsa/microchip/ksz_common.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index 343381102cbf..85392d3b1c2b 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -257,6 +257,7 @@ static const u16 ksz8795_regs[] = {
[S_START_CTRL] = 0x01,
[S_BROADCAST_CTRL] = 0x06,
[S_MULTICAST_CTRL] = 0x04,
+ [P_XMII_CTRL_0] = 0x06,
[P_XMII_CTRL_1] = 0x56,
};
@@ -282,6 +283,11 @@ static const u32 ksz8795_masks[] = {
[DYNAMIC_MAC_TABLE_TIMESTAMP] = GENMASK(28, 27),
};
+static const u8 ksz8795_xmii_ctrl0[] = {
+ [P_MII_100MBIT] = 0,
+ [P_MII_10MBIT] = 1,
+};
+
static const u8 ksz8795_xmii_ctrl1[] = {
[P_GMII_1GBIT] = 1,
[P_GMII_NOT_1GBIT] = 0,
@@ -357,6 +363,7 @@ static const u16 ksz9477_regs[] = {
[S_START_CTRL] = 0x0300,
[S_BROADCAST_CTRL] = 0x0332,
[S_MULTICAST_CTRL] = 0x0331,
+ [P_XMII_CTRL_0] = 0x0300,
[P_XMII_CTRL_1] = 0x0301,
};
@@ -369,6 +376,11 @@ static const u8 ksz9477_shifts[] = {
[ALU_STAT_INDEX] = 16,
};
+static const u8 ksz9477_xmii_ctrl0[] = {
+ [P_MII_100MBIT] = 1,
+ [P_MII_10MBIT] = 0,
+};
+
static const u8 ksz9477_xmii_ctrl1[] = {
[P_GMII_1GBIT] = 0,
[P_GMII_NOT_1GBIT] = 1,
@@ -400,6 +412,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.regs = ksz8795_regs,
.masks = ksz8795_masks,
.shifts = ksz8795_shifts,
+ .xmii_ctrl0 = ksz8795_xmii_ctrl0,
.xmii_ctrl1 = ksz8795_xmii_ctrl1,
.supports_mii = {false, false, false, false, true},
.supports_rmii = {false, false, false, false, true},
@@ -437,6 +450,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.regs = ksz8795_regs,
.masks = ksz8795_masks,
.shifts = ksz8795_shifts,
+ .xmii_ctrl0 = ksz8795_xmii_ctrl0,
.xmii_ctrl1 = ksz8795_xmii_ctrl1,
.supports_mii = {false, false, false, false, true},
.supports_rmii = {false, false, false, false, true},
@@ -460,6 +474,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.regs = ksz8795_regs,
.masks = ksz8795_masks,
.shifts = ksz8795_shifts,
+ .xmii_ctrl0 = ksz8795_xmii_ctrl0,
.xmii_ctrl1 = ksz8795_xmii_ctrl1,
.supports_mii = {false, false, false, false, true},
.supports_rmii = {false, false, false, false, true},
@@ -503,6 +518,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.regs = ksz9477_regs,
.masks = ksz9477_masks,
.shifts = ksz9477_shifts,
+ .xmii_ctrl0 = ksz9477_xmii_ctrl0,
.xmii_ctrl1 = ksz9477_xmii_ctrl1,
.supports_mii = {false, false, false, false,
false, true, false},
@@ -530,6 +546,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.regs = ksz9477_regs,
.masks = ksz9477_masks,
.shifts = ksz9477_shifts,
+ .xmii_ctrl0 = ksz9477_xmii_ctrl0,
.xmii_ctrl1 = ksz9477_xmii_ctrl1,
.supports_mii = {false, false, false, false,
false, true, true},
@@ -556,6 +573,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.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},
@@ -579,6 +597,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.regs = ksz9477_regs,
.masks = ksz9477_masks,
.shifts = ksz9477_shifts,
+ .xmii_ctrl0 = ksz9477_xmii_ctrl0,
.xmii_ctrl1 = ksz9477_xmii_ctrl1,
.supports_mii = {false, false, false, false,
false, true, true},
@@ -605,6 +624,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.regs = ksz9477_regs,
.masks = lan937x_masks,
.shifts = lan937x_shifts,
+ .xmii_ctrl0 = ksz9477_xmii_ctrl0,
.xmii_ctrl1 = ksz9477_xmii_ctrl1,
.supports_mii = {false, false, false, false, true},
.supports_rmii = {false, false, false, false, true},
@@ -627,6 +647,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.regs = ksz9477_regs,
.masks = lan937x_masks,
.shifts = lan937x_shifts,
+ .xmii_ctrl0 = ksz9477_xmii_ctrl0,
.xmii_ctrl1 = ksz9477_xmii_ctrl1,
.supports_mii = {false, false, false, false, true, true},
.supports_rmii = {false, false, false, false, true, true},
@@ -649,6 +670,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.regs = ksz9477_regs,
.masks = lan937x_masks,
.shifts = lan937x_shifts,
+ .xmii_ctrl0 = ksz9477_xmii_ctrl0,
.xmii_ctrl1 = ksz9477_xmii_ctrl1,
.supports_mii = {false, false, false, false,
true, true, false, false},
@@ -675,6 +697,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.regs = ksz9477_regs,
.masks = lan937x_masks,
.shifts = lan937x_shifts,
+ .xmii_ctrl0 = ksz9477_xmii_ctrl0,
.xmii_ctrl1 = ksz9477_xmii_ctrl1,
.supports_mii = {false, false, false, false,
true, true, false, false},
@@ -701,6 +724,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.regs = ksz9477_regs,
.masks = lan937x_masks,
.shifts = lan937x_shifts,
+ .xmii_ctrl0 = ksz9477_xmii_ctrl0,
.xmii_ctrl1 = ksz9477_xmii_ctrl1,
.supports_mii = {false, false, false, false,
true, true, false, false},
@@ -1414,6 +1438,36 @@ void ksz_set_gbit(struct ksz_device *dev, int port, bool gbit)
ksz_pwrite8(dev, port, regs[P_XMII_CTRL_1], data8);
}
+static void ksz_set_100_10mbit(struct ksz_device *dev, int port, int speed)
+{
+ const u8 *bitval = dev->info->xmii_ctrl0;
+ const u16 *regs = dev->info->regs;
+ u8 data8;
+
+ ksz_pread8(dev, port, regs[P_XMII_CTRL_0], &data8);
+
+ data8 &= ~P_MII_100MBIT_M;
+
+ if (speed == SPEED_100)
+ data8 |= FIELD_PREP(P_MII_100MBIT_M, bitval[P_MII_100MBIT]);
+ else
+ data8 |= FIELD_PREP(P_MII_100MBIT_M, bitval[P_MII_10MBIT]);
+
+ /* Write the updated value */
+ ksz_pwrite8(dev, port, regs[P_XMII_CTRL_0], data8);
+}
+
+void ksz_port_set_xmii_speed(struct ksz_device *dev, int port, int speed)
+{
+ if (speed == SPEED_1000)
+ ksz_set_gbit(dev, port, true);
+ else
+ ksz_set_gbit(dev, port, false);
+
+ if (speed == SPEED_100 || speed == SPEED_10)
+ ksz_set_100_10mbit(dev, port, speed);
+}
+
static void ksz_phylink_mac_link_up(struct dsa_switch *ds, int port,
unsigned int mode,
phy_interface_t interface,
generated by cgit (git 2.34.1) at 2024-06-10 19:08:38 +0000