Add Airoha AN8855 5-Port Gigabit DSA switch.
The switch is also a nvmem-provider as it does have EFUSE to calibrate
the internal PHYs.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
---
MAINTAINERS | 10 +
drivers/net/dsa/Kconfig | 9 +
drivers/net/dsa/Makefile | 1 +
drivers/net/dsa/an8855.c | 2054 ++++++++++++++++++++++++++++++++++++++
drivers/net/dsa/an8855.h | 628 ++++++++++++
5 files changed, 2702 insertions(+)
create mode 100644 drivers/net/dsa/an8855.c
create mode 100644 drivers/net/dsa/an8855.h
diff --git a/MAINTAINERS b/MAINTAINERS
index 16933f9faa0f..e3077d9feee2 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -717,6 +717,16 @@ S: Supported
F: fs/aio.c
F: include/linux/*aio*.h
+AIROHA DSA DRIVER
+M: Christian Marangi <ansuelsmth@gmail.com>
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+L: linux-mediatek@lists.infradead.org (moderated for non-subscribers)
+L: netdev@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/net/dsa/airoha,an8855.yaml
+F: drivers/net/dsa/an8855.c
+F: drivers/net/dsa/an8855.h
+
AIROHA ETHERNET DRIVER
M: Lorenzo Bianconi <lorenzo@kernel.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
diff --git a/drivers/net/dsa/Kconfig b/drivers/net/dsa/Kconfig
index 2d10b4d6cfbb..6b6d0b7bae72 100644
--- a/drivers/net/dsa/Kconfig
+++ b/drivers/net/dsa/Kconfig
@@ -24,6 +24,15 @@ config NET_DSA_LOOP
This enables support for a fake mock-up switch chip which
exercises the DSA APIs.
+
+config NET_DSA_AN8855
+ tristate "Airoha AN8855 Ethernet switch support"
+ depends on NET_DSA
+ select NET_DSA_TAG_MTK
+ help
+ This enables support for the Airoha AN8855 Ethernet switch
+ chip.
+
source "drivers/net/dsa/hirschmann/Kconfig"
config NET_DSA_LANTIQ_GSWIP
diff --git a/drivers/net/dsa/Makefile b/drivers/net/dsa/Makefile
index cb9a97340e58..a74afb41a491 100644
--- a/drivers/net/dsa/Makefile
+++ b/drivers/net/dsa/Makefile
@@ -5,6 +5,7 @@ obj-$(CONFIG_NET_DSA_LOOP) += dsa_loop.o
ifdef CONFIG_NET_DSA_LOOP
obj-$(CONFIG_FIXED_PHY) += dsa_loop_bdinfo.o
endif
+obj-$(CONFIG_NET_DSA_AN8855) += an8855.o
obj-$(CONFIG_NET_DSA_LANTIQ_GSWIP) += lantiq_gswip.o
obj-$(CONFIG_NET_DSA_MT7530) += mt7530.o
obj-$(CONFIG_NET_DSA_MT7530_MDIO) += mt7530-mdio.o
diff --git a/drivers/net/dsa/an8855.c b/drivers/net/dsa/an8855.c
new file mode 100644
index 000000000000..4d2d3477eef4
--- /dev/null
+++ b/drivers/net/dsa/an8855.c
@@ -0,0 +1,2054 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Airoha AN8855 DSA Switch driver
+ * Copyright (C) 2023 Min Yao <min.yao@airoha.com>
+ * Copyright (C) 2024 Christian Marangi <ansuelsmth@gmail.com>
+ */
+#include <linux/bitfield.h>
+#include <linux/ethtool.h>
+#include <linux/etherdevice.h>
+#include <linux/gpio/consumer.h>
+#include <linux/if_bridge.h>
+#include <linux/iopoll.h>
+#include <linux/mdio.h>
+#include <linux/netdevice.h>
+#include <linux/of_mdio.h>
+#include <linux/of_net.h>
+#include <linux/of_platform.h>
+#include <linux/nvmem-provider.h>
+#include <linux/phylink.h>
+#include <linux/regmap.h>
+#include <net/dsa.h>
+
+#include "an8855.h"
+
+static const struct an8855_mib_desc an8855_mib[] = {
+ MIB_DESC(1, 0x00, "TxDrop"),
+ MIB_DESC(1, 0x04, "TxCrcErr"),
+ MIB_DESC(1, 0x08, "TxUnicast"),
+ MIB_DESC(1, 0x0c, "TxMulticast"),
+ MIB_DESC(1, 0x10, "TxBroadcast"),
+ MIB_DESC(1, 0x14, "TxCollision"),
+ MIB_DESC(1, 0x18, "TxSingleCollision"),
+ MIB_DESC(1, 0x1c, "TxMultipleCollision"),
+ MIB_DESC(1, 0x20, "TxDeferred"),
+ MIB_DESC(1, 0x24, "TxLateCollision"),
+ MIB_DESC(1, 0x28, "TxExcessiveCollistion"),
+ MIB_DESC(1, 0x2c, "TxPause"),
+ MIB_DESC(1, 0x30, "TxPktSz64"),
+ MIB_DESC(1, 0x34, "TxPktSz65To127"),
+ MIB_DESC(1, 0x38, "TxPktSz128To255"),
+ MIB_DESC(1, 0x3c, "TxPktSz256To511"),
+ MIB_DESC(1, 0x40, "TxPktSz512To1023"),
+ MIB_DESC(1, 0x44, "TxPktSz1024To1518"),
+ MIB_DESC(1, 0x48, "TxPktSz1519ToMax"),
+ MIB_DESC(2, 0x4c, "TxBytes"),
+ MIB_DESC(1, 0x54, "TxOversizeDrop"),
+ MIB_DESC(2, 0x58, "TxBadPktBytes"),
+ MIB_DESC(1, 0x80, "RxDrop"),
+ MIB_DESC(1, 0x84, "RxFiltering"),
+ MIB_DESC(1, 0x88, "RxUnicast"),
+ MIB_DESC(1, 0x8c, "RxMulticast"),
+ MIB_DESC(1, 0x90, "RxBroadcast"),
+ MIB_DESC(1, 0x94, "RxAlignErr"),
+ MIB_DESC(1, 0x98, "RxCrcErr"),
+ MIB_DESC(1, 0x9c, "RxUnderSizeErr"),
+ MIB_DESC(1, 0xa0, "RxFragErr"),
+ MIB_DESC(1, 0xa4, "RxOverSzErr"),
+ MIB_DESC(1, 0xa8, "RxJabberErr"),
+ MIB_DESC(1, 0xac, "RxPause"),
+ MIB_DESC(1, 0xb0, "RxPktSz64"),
+ MIB_DESC(1, 0xb4, "RxPktSz65To127"),
+ MIB_DESC(1, 0xb8, "RxPktSz128To255"),
+ MIB_DESC(1, 0xbc, "RxPktSz256To511"),
+ MIB_DESC(1, 0xc0, "RxPktSz512To1023"),
+ MIB_DESC(1, 0xc4, "RxPktSz1024To1518"),
+ MIB_DESC(1, 0xc8, "RxPktSz1519ToMax"),
+ MIB_DESC(2, 0xcc, "RxBytes"),
+ MIB_DESC(1, 0xd4, "RxCtrlDrop"),
+ MIB_DESC(1, 0xd8, "RxIngressDrop"),
+ MIB_DESC(1, 0xdc, "RxArlDrop"),
+ MIB_DESC(1, 0xe0, "FlowControlDrop"),
+ MIB_DESC(1, 0xe4, "WredDrop"),
+ MIB_DESC(1, 0xe8, "MirrorDrop"),
+ MIB_DESC(2, 0xec, "RxBadPktBytes"),
+ MIB_DESC(1, 0xf4, "RxsFlowSamplingPktDrop"),
+ MIB_DESC(1, 0xf8, "RxsFlowTotalPktDrop"),
+ MIB_DESC(1, 0xfc, "PortControlDrop"),
+};
+
+static int an8855_mii_set_page(struct mii_bus *bus, u8 phy_id, u8 page)
+{
+ int ret;
+
+ ret = __mdiobus_write(bus, phy_id, AN8855_PHY_SELECT_PAGE, page);
+ if (ret < 0)
+ dev_err_ratelimited(&bus->dev,
+ "failed to set an8855 mii page\n");
+
+ return ret;
+}
+
+static int an8855_mii_read32(struct mii_bus *bus, u8 phy_id, u32 reg, u32 *val)
+{
+ int lo, hi, ret;
+
+ ret = __mdiobus_write(bus, phy_id, AN8855_PBUS_MODE,
+ AN8855_PBUS_MODE_ADDR_FIXED);
+ if (ret < 0)
+ goto err;
+
+ ret = __mdiobus_write(bus, phy_id, AN8855_PBUS_RD_ADDR_HIGH,
+ upper_16_bits(reg));
+ if (ret < 0)
+ goto err;
+ ret = __mdiobus_write(bus, phy_id, AN8855_PBUS_RD_ADDR_LOW,
+ lower_16_bits(reg));
+ if (ret < 0)
+ goto err;
+
+ hi = __mdiobus_read(bus, phy_id, AN8855_PBUS_RD_DATA_HIGH);
+ if (hi < 0) {
+ ret = hi;
+ goto err;
+ }
+ lo = __mdiobus_read(bus, phy_id, AN8855_PBUS_RD_DATA_LOW);
+ if (lo < 0) {
+ ret = lo;
+ goto err;
+ }
+
+ *val = ((u16)hi << 16) | ((u16)lo & 0xffff);
+
+ return 0;
+err:
+ dev_err_ratelimited(&bus->dev,
+ "failed to read an8855 register\n");
+ return ret;
+}
+
+static int an8855_regmap_read(void *ctx, uint32_t reg, uint32_t *val)
+{
+ struct an8855_priv *priv = ctx;
+ struct mii_bus *bus = priv->bus;
+ int ret;
+
+ mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
+ ret = an8855_mii_set_page(bus, priv->phy_base, AN8855_PHY_PAGE_EXTENDED_4);
+ if (ret < 0)
+ goto exit;
+
+ ret = an8855_mii_read32(bus, priv->phy_base,
+ reg, val);
+
+exit:
+ an8855_mii_set_page(bus, priv->phy_base, AN8855_PHY_PAGE_STANDARD);
+ mutex_unlock(&bus->mdio_lock);
+
+ return ret < 0 ? ret : 0;
+}
+
+static int an8855_mii_write32(struct mii_bus *bus, u8 phy_id, u32 reg, u32 val)
+{
+ int ret;
+
+ ret = __mdiobus_write(bus, phy_id, AN8855_PBUS_MODE,
+ AN8855_PBUS_MODE_ADDR_FIXED);
+ if (ret < 0)
+ goto err;
+
+ ret = __mdiobus_write(bus, phy_id, AN8855_PBUS_WR_ADDR_HIGH,
+ upper_16_bits(reg));
+ if (ret < 0)
+ goto err;
+ ret = __mdiobus_write(bus, phy_id, AN8855_PBUS_WR_ADDR_LOW,
+ lower_16_bits(reg));
+ if (ret < 0)
+ goto err;
+
+ ret = __mdiobus_write(bus, phy_id, AN8855_PBUS_WR_DATA_HIGH,
+ upper_16_bits(val));
+ if (ret < 0)
+ goto err;
+ ret = __mdiobus_write(bus, phy_id, AN8855_PBUS_WR_DATA_LOW,
+ lower_16_bits(val));
+ if (ret < 0)
+ goto err;
+
+ return 0;
+err:
+ dev_err_ratelimited(&bus->dev,
+ "failed to write an8855 register\n");
+ return ret;
+}
+
+static int
+an8855_regmap_write(void *ctx, uint32_t reg, uint32_t val)
+{
+ struct an8855_priv *priv = ctx;
+ struct mii_bus *bus = priv->bus;
+ int ret;
+
+ mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
+ ret = an8855_mii_set_page(bus, priv->phy_base, AN8855_PHY_PAGE_EXTENDED_4);
+ if (ret < 0)
+ goto exit;
+
+ ret = an8855_mii_write32(priv->bus, priv->phy_base,
+ reg, val);
+
+exit:
+ an8855_mii_set_page(bus, priv->phy_base, AN8855_PHY_PAGE_STANDARD);
+ mutex_unlock(&bus->mdio_lock);
+
+ return ret < 0 ? ret : 0;
+}
+
+static int
+an8855_regmap_update_bits(void *ctx, uint32_t reg, uint32_t mask, uint32_t write_val)
+{
+ struct an8855_priv *priv = ctx;
+ struct mii_bus *bus = priv->bus;
+ u32 val;
+ int ret;
+
+ mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
+ ret = an8855_mii_set_page(bus, priv->phy_base, AN8855_PHY_PAGE_EXTENDED_4);
+ if (ret < 0)
+ goto exit;
+
+ ret = an8855_mii_read32(bus, priv->phy_base, reg, &val);
+ if (ret < 0)
+ goto exit;
+
+ val &= ~mask;
+ val |= write_val;
+ ret = an8855_mii_write32(bus, priv->phy_base, reg, val);
+
+exit:
+ an8855_mii_set_page(bus, priv->phy_base, AN8855_PHY_PAGE_STANDARD);
+ mutex_unlock(&bus->mdio_lock);
+
+ return ret < 0 ? ret : 0;
+}
+
+static const struct regmap_range an8855_readable_ranges[] = {
+ regmap_reg_range(0x10000000, 0x10000fff), /* SCU */
+ regmap_reg_range(0x10001000, 0x10001fff), /* RBUS */
+ regmap_reg_range(0x10002000, 0x10002fff), /* MCU */
+ regmap_reg_range(0x10005000, 0x10005fff), /* SYS SCU */
+ regmap_reg_range(0x10007000, 0x10007fff), /* I2C Slave */
+ regmap_reg_range(0x10008000, 0x10008fff), /* I2C Master */
+ regmap_reg_range(0x10009000, 0x10009fff), /* PDMA */
+ regmap_reg_range(0x1000a100, 0x1000a2ff), /* General Purpose Timer */
+ regmap_reg_range(0x1000a200, 0x1000a2ff), /* GPU timer */
+ regmap_reg_range(0x1000a300, 0x1000a3ff), /* GPIO */
+ regmap_reg_range(0x1000a400, 0x1000a5ff), /* EFUSE */
+ regmap_reg_range(0x1000c000, 0x1000cfff), /* GDMP CSR */
+ regmap_reg_range(0x10010000, 0x1001ffff), /* GDMP SRAM */
+ regmap_reg_range(0x10200000, 0x10203fff), /* Switch - ARL Global */
+ regmap_reg_range(0x10204000, 0x10207fff), /* Switch - BMU */
+ regmap_reg_range(0x10208000, 0x1020bfff), /* Switch - ARL Port */
+ regmap_reg_range(0x1020c000, 0x1020cfff), /* Switch - SCH */
+ regmap_reg_range(0x10210000, 0x10213fff), /* Switch - MAC */
+ regmap_reg_range(0x10214000, 0x10217fff), /* Switch - MIB */
+ regmap_reg_range(0x10218000, 0x1021bfff), /* Switch - Port Control */
+ regmap_reg_range(0x1021c000, 0x1021ffff), /* Switch - TOP */
+ regmap_reg_range(0x10220000, 0x1022ffff), /* SerDes */
+ regmap_reg_range(0x10286000, 0x10286fff), /* RG Batcher */
+ regmap_reg_range(0x1028c000, 0x1028ffff), /* ETHER_SYS */
+ regmap_reg_range(0x30000000, 0x37ffffff), /* I2C EEPROM */
+ regmap_reg_range(0x38000000, 0x3fffffff), /* BOOT_ROM */
+ regmap_reg_range(0xa0000000, 0xbfffffff), /* GPHY */
+};
+
+const struct regmap_access_table an8855_readable_table = {
+ .yes_ranges = an8855_readable_ranges,
+ .n_yes_ranges = ARRAY_SIZE(an8855_readable_ranges),
+};
+
+static const struct regmap_config an8855_regmap_config = {
+ .reg_bits = 32,
+ .val_bits = 32,
+ .reg_stride = 4,
+ .max_register = 0xbfffffff,
+ .reg_read = an8855_regmap_read,
+ .reg_write = an8855_regmap_write,
+ .reg_update_bits = an8855_regmap_update_bits,
+ .disable_locking = true,
+ .rd_table = &an8855_readable_table,
+};
+
+static int
+an8855_mib_init(struct an8855_priv *priv)
+{
+ int ret;
+
+ ret = regmap_write(priv->regmap, AN8855_MIB_CCR, AN8855_CCR_MIB_ENABLE);
+ if (ret)
+ return ret;
+
+ return regmap_write(priv->regmap, AN8855_MIB_CCR, AN8855_CCR_MIB_ACTIVATE);
+}
+
+static void an8855_fdb_write(struct an8855_priv *priv, u16 vid,
+ u8 port_mask, const u8 *mac, bool add)
+{
+ u32 mac_reg[2] = { };
+ u32 reg;
+
+ mac_reg[0] |= FIELD_PREP(AN8855_ATA1_MAC0, mac[0]);
+ mac_reg[0] |= FIELD_PREP(AN8855_ATA1_MAC1, mac[1]);
+ mac_reg[0] |= FIELD_PREP(AN8855_ATA1_MAC2, mac[2]);
+ mac_reg[0] |= FIELD_PREP(AN8855_ATA1_MAC3, mac[3]);
+ mac_reg[1] |= FIELD_PREP(AN8855_ATA2_MAC4, mac[4]);
+ mac_reg[1] |= FIELD_PREP(AN8855_ATA2_MAC5, mac[5]);
+
+ regmap_bulk_write(priv->regmap, AN8855_ATA1, mac_reg,
+ ARRAY_SIZE(mac_reg));
+
+ reg = AN8855_ATWD_IVL;
+ if (add)
+ reg |= AN8855_ATWD_VLD;
+ reg |= FIELD_PREP(AN8855_ATWD_VID, vid);
+ regmap_write(priv->regmap, AN8855_ATWD, reg);
+ regmap_write(priv->regmap, AN8855_ATWD2,
+ FIELD_PREP(AN8855_ATWD2_PORT, port_mask));
+}
+
+static void an8855_fdb_read(struct an8855_priv *priv, struct an8855_fdb *fdb)
+{
+ u32 reg[4];
+
+ regmap_bulk_read(priv->regmap, AN8855_ATRD0, reg,
+ ARRAY_SIZE(reg));
+
+ fdb->live = FIELD_GET(AN8855_ATRD0_LIVE, reg[0]);
+ fdb->type = FIELD_GET(AN8855_ATRD0_TYPE, reg[0]);
+ fdb->ivl = FIELD_GET(AN8855_ATRD0_IVL, reg[0]);
+ fdb->vid = FIELD_GET(AN8855_ATRD0_VID, reg[0]);
+ fdb->fid = FIELD_GET(AN8855_ATRD0_FID, reg[0]);
+ fdb->aging = FIELD_GET(AN8855_ATRD1_AGING, reg[1]);
+ fdb->port_mask = FIELD_GET(AN8855_ATRD3_PORTMASK, reg[3]);
+ fdb->mac[0] = FIELD_GET(AN8855_ATRD2_MAC0, reg[2]);
+ fdb->mac[1] = FIELD_GET(AN8855_ATRD2_MAC1, reg[2]);
+ fdb->mac[2] = FIELD_GET(AN8855_ATRD2_MAC2, reg[2]);
+ fdb->mac[3] = FIELD_GET(AN8855_ATRD2_MAC3, reg[2]);
+ fdb->mac[4] = FIELD_GET(AN8855_ATRD1_MAC4, reg[1]);
+ fdb->mac[5] = FIELD_GET(AN8855_ATRD1_MAC5, reg[1]);
+ fdb->noarp = !!FIELD_GET(AN8855_ATRD0_ARP, reg[0]);
+}
+
+static int an8855_fdb_cmd(struct an8855_priv *priv, u32 cmd, u32 *rsp)
+{
+ u32 val;
+ int ret;
+
+ /* Set the command operating upon the MAC address entries */
+ val = AN8855_ATC_BUSY | cmd;
+ ret = regmap_write(priv->regmap, AN8855_ATC, val);
+ if (ret)
+ return ret;
+
+ ret = regmap_read_poll_timeout(priv->regmap, AN8855_ATC, val,
+ !(val & AN8855_ATC_BUSY), 20, 200000);
+ if (ret)
+ return ret;
+
+ if (rsp)
+ *rsp = val;
+
+ return 0;
+}
+
+static void
+an8855_stp_state_set(struct dsa_switch *ds, int port, u8 state)
+{
+ struct an8855_priv *priv = ds->priv;
+ u32 stp_state;
+
+ switch (state) {
+ case BR_STATE_DISABLED:
+ stp_state = AN8855_STP_DISABLED;
+ break;
+ case BR_STATE_BLOCKING:
+ stp_state = AN8855_STP_BLOCKING;
+ break;
+ case BR_STATE_LISTENING:
+ stp_state = AN8855_STP_LISTENING;
+ break;
+ case BR_STATE_LEARNING:
+ stp_state = AN8855_STP_LEARNING;
+ break;
+ case BR_STATE_FORWARDING:
+ default:
+ stp_state = AN8855_STP_FORWARDING;
+ break;
+ }
+
+ regmap_update_bits(priv->regmap, AN8855_SSP_P(port), AN8855_FID_PST,
+ stp_state);
+}
+
+static int an8855_port_bridge_join(struct dsa_switch *ds, int port,
+ struct dsa_bridge bridge,
+ bool *tx_fwd_offload,
+ struct netlink_ext_ack *extack)
+{
+ struct an8855_priv *priv = ds->priv;
+ u32 port_mask = BIT(AN8855_CPU_PORT);
+ struct dsa_port *dp;
+ int ret;
+
+ dsa_switch_for_each_port(dp, ds) {
+ if (dp->index == port)
+ continue;
+
+ if (dsa_port_is_cpu(dp))
+ continue;
+
+ if (!dsa_port_offloads_bridge_dev(dp, bridge.dev))
+ continue;
+
+ /* Add this port to the portvlan mask of the other
+ * ports in the bridge
+ */
+ port_mask |= BIT(dp->index);
+ ret = regmap_set_bits(priv->regmap, AN8855_PORTMATRIX_P(dp->index),
+ FIELD_PREP(AN8855_PORTMATRIX, port));
+ if (ret)
+ return ret;
+ }
+
+ /* Add all other ports to this port's portvlan mask */
+ return regmap_update_bits(priv->regmap, AN8855_PORTMATRIX_P(port),
+ AN8855_PORTMATRIX, port_mask);
+}
+
+static void an8855_port_bridge_leave(struct dsa_switch *ds, int port,
+ struct dsa_bridge bridge)
+{
+ struct an8855_priv *priv = ds->priv;
+ struct dsa_port *dp;
+ u32 port_mask = 0;
+
+ dsa_switch_for_each_port(dp, ds) {
+ if (dp->index == port)
+ continue;
+
+ if (dsa_port_is_cpu(dp))
+ continue;
+
+ if (!dsa_port_offloads_bridge_dev(dp, bridge.dev))
+ continue;
+
+ /* Remove this port from the portvlan mask of the other
+ * ports in the bridge
+ */
+ port_mask |= BIT(dp->index);
+ regmap_clear_bits(priv->regmap, AN8855_PORTMATRIX_P(dp->index),
+ FIELD_PREP(AN8855_PORTMATRIX, port));
+ }
+
+ /* Remove all other ports from this port's portvlan mask */
+ regmap_update_bits(priv->regmap, AN8855_PORTMATRIX_P(port),
+ AN8855_PORTMATRIX,
+ FIELD_PREP(AN8855_PORTMATRIX, ~port_mask));
+}
+
+static int an8855_port_fdb_add(struct dsa_switch *ds, int port,
+ const unsigned char *addr, u16 vid,
+ struct dsa_db db)
+{
+ struct an8855_priv *priv = ds->priv;
+ u8 port_mask = BIT(port);
+ int ret;
+
+ mutex_lock(&priv->reg_mutex);
+ an8855_fdb_write(priv, vid, port_mask, addr, 1);
+ ret = an8855_fdb_cmd(priv, AN8855_FDB_WRITE, NULL);
+ mutex_unlock(&priv->reg_mutex);
+
+ return ret;
+}
+
+static int an8855_port_fdb_del(struct dsa_switch *ds, int port,
+ const unsigned char *addr, u16 vid,
+ struct dsa_db db)
+{
+ struct an8855_priv *priv = ds->priv;
+ u8 port_mask = BIT(port);
+ int ret;
+
+ mutex_lock(&priv->reg_mutex);
+ an8855_fdb_write(priv, vid, port_mask, addr, 0);
+ ret = an8855_fdb_cmd(priv, AN8855_FDB_WRITE, NULL);
+ mutex_unlock(&priv->reg_mutex);
+
+ return ret;
+}
+
+static int an8855_port_fdb_dump(struct dsa_switch *ds, int port,
+ dsa_fdb_dump_cb_t *cb, void *data)
+{
+ struct an8855_priv *priv = ds->priv;
+ struct an8855_fdb _fdb = { };
+ int banks, count = 0;
+ u32 rsp;
+ int ret;
+ int i;
+
+ mutex_lock(&priv->reg_mutex);
+
+ /* Load search port */
+ ret = regmap_write(priv->regmap, AN8855_ATWD2,
+ FIELD_PREP(AN8855_ATWD2_PORT, port));
+ if (ret)
+ goto exit;
+ ret = an8855_fdb_cmd(priv, AN8855_ATC_MAT(AND8855_FDB_MAT_MAC_PORT) |
+ AN8855_FDB_START, &rsp);
+ if (ret < 0)
+ goto exit;
+
+ do {
+ /* From response get the number of banks to read, exit if 0 */
+ banks = FIELD_GET(AN8855_ATC_HIT, rsp);
+ if (!banks)
+ break;
+
+ /* Each banks have 4 entry */
+ for (i = 0; i < 4; i++) {
+ count++;
+
+ /* Check if bank is present */
+ if (!(banks & BIT(i)))
+ continue;
+
+ /* Select bank entry index */
+ ret = regmap_write(priv->regmap, AN8855_ATRDS,
+ FIELD_PREP(AN8855_ATRD_SEL, i));
+ if (ret)
+ break;
+ /* wait 1ms for the bank entry to be filled */
+ usleep_range(1000, 1500);
+ an8855_fdb_read(priv, &_fdb);
+
+ if (!_fdb.live)
+ continue;
+ ret = cb(_fdb.mac, _fdb.vid, _fdb.noarp, data);
+ if (ret < 0)
+ break;
+ }
+
+ /* Stop if reached max FDB number */
+ if (count >= AN8855_NUM_FDB_RECORDS)
+ break;
+
+ /* Read next bank */
+ ret = an8855_fdb_cmd(priv, AN8855_ATC_MAT(AND8855_FDB_MAT_MAC_PORT) |
+ AN8855_FDB_NEXT, &rsp);
+ if (ret < 0)
+ break;
+ } while (true);
+
+exit:
+ mutex_unlock(&priv->reg_mutex);
+ return ret;
+}
+
+static int an8855_vlan_cmd(struct an8855_priv *priv, enum an8855_vlan_cmd cmd,
+ u16 vid)
+{
+ u32 val;
+ int ret;
+
+ val = AN8855_VTCR_BUSY | FIELD_PREP(AN8855_VTCR_FUNC, cmd) |
+ FIELD_PREP(AN8855_VTCR_VID, vid);
+ ret = regmap_write(priv->regmap, AN8855_VTCR, val);
+ if (ret)
+ return ret;
+
+ return regmap_read_poll_timeout(priv->regmap, AN8855_VTCR, val,
+ !(val & AN8855_VTCR_BUSY), 20, 200000);
+}
+
+static int an8855_vlan_add(struct an8855_priv *priv, u8 port, u16 vid,
+ bool untagged)
+{
+ u32 port_mask;
+ u32 val;
+ int ret;
+
+ /* Fetch entry */
+ ret = an8855_vlan_cmd(priv, AN8855_VTCR_RD_VID, vid);
+ if (ret)
+ return ret;
+
+ ret = regmap_read(priv->regmap, AN8855_VARD0, &val);
+ if (ret)
+ return ret;
+ port_mask = FIELD_GET(AN8855_VA0_PORT, val) | BIT(port);
+
+ /* Validate the entry with independent learning, create egress tag per
+ * VLAN and joining the port as one of the port members.
+ */
+ val = (val & AN8855_VA0_ETAG) | AN8855_VA0_IVL_MAC |
+ AN8855_VA0_VTAG_EN | AN8855_VA0_VLAN_VALID |
+ FIELD_PREP(AN8855_VA0_PORT, port_mask);
+ ret = regmap_write(priv->regmap, AN8855_VAWD0, val);
+ if (ret)
+ return ret;
+ ret = regmap_write(priv->regmap, AN8855_VAWD1, 0);
+ if (ret)
+ return ret;
+
+ /* CPU port is always taken as a tagged port for serving more than one
+ * VLANs across and also being applied with egress type stack mode for
+ * that VLAN tags would be appended after hardware special tag used as
+ * DSA tag.
+ */
+ if (port == AN8855_CPU_PORT)
+ val = AN8855_VLAN_EGRESS_STACK;
+ /* Decide whether adding tag or not for those outgoing packets from the
+ * port inside the VLAN.
+ */
+ else
+ val = untagged ? AN8855_VLAN_EGRESS_UNTAG : AN8855_VLAN_EGRESS_TAG;
+ ret = regmap_update_bits(priv->regmap, AN8855_VAWD0,
+ AN8855_VA0_ETAG_PORT_MASK(port),
+ AN8855_VA0_ETAG_PORT_VAL(port, val));
+ if (ret)
+ return ret;
+
+ /* Flush result to hardware */
+ return an8855_vlan_cmd(priv, AN8855_VTCR_WR_VID, vid);
+}
+
+static int an8855_vlan_del(struct an8855_priv *priv, u8 port, u16 vid)
+{
+ u32 port_mask;
+ u32 val;
+ int ret;
+
+ /* Fetch entry */
+ ret = an8855_vlan_cmd(priv, AN8855_VTCR_RD_VID, vid);
+ if (ret)
+ return ret;
+
+ ret = regmap_read(priv->regmap, AN8855_VARD0, &val);
+ if (ret)
+ return ret;
+ port_mask = FIELD_GET(AN8855_VA0_PORT, val) & ~BIT(port);
+
+ if (!(val & AN8855_VA0_VLAN_VALID)) {
+ dev_err(priv->dev, "Cannot be deleted due to invalid entry\n");
+ return -EINVAL;
+ }
+
+ if (port_mask) {
+ val = (val & AN8855_VA0_ETAG) | AN8855_VA0_IVL_MAC |
+ AN8855_VA0_VTAG_EN | AN8855_VA0_VLAN_VALID |
+ FIELD_PREP(AN8855_VA0_PORT, port_mask);
+ ret = regmap_write(priv->regmap, AN8855_VAWD0, val);
+ if (ret)
+ return ret;
+ } else {
+ ret = regmap_write(priv->regmap, AN8855_VAWD0, 0);
+ if (ret)
+ return ret;
+ }
+ ret = regmap_write(priv->regmap, AN8855_VAWD1, 0);
+ if (ret)
+ return ret;
+
+ /* Flush result to hardware */
+ return an8855_vlan_cmd(priv, AN8855_VTCR_WR_VID, vid);
+}
+
+static int an8855_port_set_vlan_mode(struct an8855_priv *priv, int port,
+ enum an8855_port_mode port_mode,
+ enum an8855_vlan_port_eg_tag eg_tag,
+ enum an8855_vlan_port_attr vlan_attr)
+{
+ int ret;
+
+ ret = regmap_update_bits(priv->regmap, AN8855_PCR_P(port),
+ AN8855_PORT_VLAN,
+ FIELD_PREP(AN8855_PORT_VLAN, port_mode));
+ if (ret)
+ return ret;
+
+ return regmap_update_bits(priv->regmap, AN8855_PVC_P(port),
+ AN8855_PVC_EG_TAG | AN8855_VLAN_ATTR,
+ FIELD_PREP(AN8855_PVC_EG_TAG, eg_tag) |
+ FIELD_PREP(AN8855_VLAN_ATTR, vlan_attr));
+}
+
+static int an8855_port_vlan_filtering(struct dsa_switch *ds, int port,
+ bool vlan_filtering,
+ struct netlink_ext_ack *extack)
+{
+ struct an8855_priv *priv = ds->priv;
+ int ret;
+
+ /* The port is being kept as VLAN-unaware port when bridge is
+ * set up with vlan_filtering not being set, Otherwise, the
+ * port and the corresponding CPU port is required the setup
+ * for becoming a VLAN-aware port.
+ */
+ if (vlan_filtering) {
+ /* CPU port is set to fallback mode to let untagged
+ * frames pass through.
+ */
+ ret = an8855_port_set_vlan_mode(priv, AN8855_CPU_PORT,
+ AN8855_PORT_FALLBACK_MODE,
+ AN8855_VLAN_EG_DISABLED,
+ AN8855_VLAN_USER);
+ if (ret)
+ return ret;
+
+ /* Trapped into security mode allows packet forwarding through VLAN
+ * table lookup.
+ * Set the port as a user port which is to be able to recognize VID
+ * from incoming packets before fetching entry within the VLAN table.
+ */
+ ret = an8855_port_set_vlan_mode(priv, port,
+ AN8855_PORT_SECURITY_MODE,
+ AN8855_VLAN_EG_DISABLED,
+ AN8855_VLAN_USER);
+ if (ret)
+ return ret;
+ } else {
+ bool disable_cpu_vlan = true;
+ struct dsa_port *dp;
+
+ /* When a port is removed from the bridge, the port would be set up
+ * back to the default as is at initial boot which is a VLAN-unaware
+ * port.
+ */
+ ret = an8855_port_set_vlan_mode(priv, port, AN8855_PORT_MATRIX_MODE,
+ AN8855_VLAN_EG_CONSISTENT,
+ AN8855_VLAN_TRANSPARENT);
+ if (ret)
+ return ret;
+
+ dsa_switch_for_each_user_port(dp, ds) {
+ if (dsa_port_is_vlan_filtering(dp)) {
+ disable_cpu_vlan = false;
+ break;
+ }
+ }
+
+ if (disable_cpu_vlan) {
+ ret = an8855_port_set_vlan_mode(priv, AN8855_CPU_PORT,
+ AN8855_PORT_MATRIX_MODE,
+ AN8855_VLAN_EG_CONSISTENT,
+ AN8855_VLAN_TRANSPARENT);
+ if (ret)
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int an8855_port_vlan_add(struct dsa_switch *ds, int port,
+ const struct switchdev_obj_port_vlan *vlan,
+ struct netlink_ext_ack *extack)
+{
+ bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
+ bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
+ struct an8855_priv *priv = ds->priv;
+ int ret;
+
+ mutex_lock(&priv->reg_mutex);
+ ret = an8855_vlan_add(priv, port, vlan->vid, untagged);
+ mutex_unlock(&priv->reg_mutex);
+ if (ret)
+ return ret;
+
+ if (pvid) {
+ ret = regmap_update_bits(priv->regmap, AN8855_PVID_P(port),
+ AN8855_G0_PORT_VID,
+ FIELD_PREP(AN8855_G0_PORT_VID, vlan->vid));
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int an8855_port_vlan_del(struct dsa_switch *ds, int port,
+ const struct switchdev_obj_port_vlan *vlan)
+{
+ struct an8855_priv *priv = ds->priv;
+ u32 val;
+ int ret;
+
+ mutex_lock(&priv->reg_mutex);
+ ret = an8855_vlan_del(priv, port, vlan->vid);
+ mutex_unlock(&priv->reg_mutex);
+ if (ret)
+ return ret;
+
+ ret = regmap_read(priv->regmap, AN8855_PVID_P(port), &val);
+ if (ret)
+ return ret;
+ if (FIELD_GET(AN8855_G0_PORT_VID, val) == vlan->vid) {
+ ret = regmap_update_bits(priv->regmap, AN8855_PVID_P(port),
+ AN8855_G0_PORT_VID,
+ FIELD_PREP(AN8855_G0_PORT_VID,
+ AN8855_PORT_VID_DEFAULT));
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static void
+an8855_get_strings(struct dsa_switch *ds, int port, u32 stringset,
+ uint8_t *data)
+{
+ int i;
+
+ if (stringset != ETH_SS_STATS)
+ return;
+
+ for (i = 0; i < ARRAY_SIZE(an8855_mib); i++)
+ ethtool_puts(&data, an8855_mib[i].name);
+}
+
+static void
+an8855_get_ethtool_stats(struct dsa_switch *ds, int port, uint64_t *data)
+{
+ struct an8855_priv *priv = ds->priv;
+ const struct an8855_mib_desc *mib;
+ u32 reg, i, val;
+ u32 hi;
+
+ for (i = 0; i < ARRAY_SIZE(an8855_mib); i++) {
+ mib = &an8855_mib[i];
+ reg = AN8855_PORT_MIB_COUNTER(port) + mib->offset;
+
+ regmap_read(priv->regmap, reg, &val);
+ if (mib->size == 2)
+ regmap_read(priv->regmap, reg + 4, &hi);
+
+ data[i] = val;
+ if (mib->size == 2)
+ data[i] |= (u64)hi << 32;
+ }
+}
+
+static int
+an8855_get_sset_count(struct dsa_switch *ds, int port, int sset)
+{
+ if (sset != ETH_SS_STATS)
+ return 0;
+
+ return ARRAY_SIZE(an8855_mib);
+}
+
+static int an8855_port_mirror_add(struct dsa_switch *ds, int port,
+ struct dsa_mall_mirror_tc_entry *mirror,
+ bool ingress,
+ struct netlink_ext_ack *extack)
+{
+ struct an8855_priv *priv = ds->priv;
+ int monitor_port;
+ u32 val;
+ int ret;
+
+ /* Check for existent entry */
+ if ((ingress ? priv->mirror_rx : priv->mirror_tx) & BIT(port))
+ return -EEXIST;
+
+ ret = regmap_read(priv->regmap, AN8855_MIR, &val);
+ if (ret)
+ return ret;
+
+ /* AN8855 supports 4 monitor port, but only use first group */
+ monitor_port = FIELD_GET(AN8855_MIRROR_PORT, val);
+ if (val & AN8855_MIRROR_EN && monitor_port != mirror->to_local_port)
+ return -EEXIST;
+
+ val = AN8855_MIRROR_EN;
+ val |= FIELD_PREP(AN8855_MIRROR_PORT, mirror->to_local_port);
+ ret = regmap_update_bits(priv->regmap, AN8855_MIR,
+ AN8855_MIRROR_EN | AN8855_MIRROR_PORT,
+ val);
+ if (ret)
+ return ret;
+
+ ret = regmap_set_bits(priv->regmap, AN8855_PCR_P(port),
+ ingress ? AN8855_PORT_RX_MIR : AN8855_PORT_TX_MIR);
+ if (ret)
+ return ret;
+
+ if (ingress)
+ priv->mirror_rx |= BIT(port);
+ else
+ priv->mirror_tx |= BIT(port);
+
+ return 0;
+}
+
+static void an8855_port_mirror_del(struct dsa_switch *ds, int port,
+ struct dsa_mall_mirror_tc_entry *mirror)
+{
+ struct an8855_priv *priv = ds->priv;
+
+ if (mirror->ingress)
+ priv->mirror_rx &= ~BIT(port);
+ else
+ priv->mirror_tx &= ~BIT(port);
+
+ regmap_clear_bits(priv->regmap, AN8855_PCR_P(port),
+ mirror->ingress ? AN8855_PORT_RX_MIR :
+ AN8855_PORT_TX_MIR);
+
+ if (!priv->mirror_rx && !priv->mirror_tx)
+ regmap_clear_bits(priv->regmap, AN8855_MIR, AN8855_MIRROR_EN);
+}
+
+static int an8855_port_set_status(struct an8855_priv *priv, int port,
+ bool enable)
+{
+ if (enable)
+ return regmap_set_bits(priv->regmap, AN8855_PMCR_P(port),
+ AN8855_PMCR_TX_EN | AN8855_PMCR_RX_EN);
+ else
+ return regmap_clear_bits(priv->regmap, AN8855_PMCR_P(port),
+ AN8855_PMCR_TX_EN | AN8855_PMCR_RX_EN);
+}
+
+static int an8855_port_enable(struct dsa_switch *ds, int port,
+ struct phy_device *phy)
+{
+ int ret;
+
+ ret = an8855_port_set_status(ds->priv, port, true);
+ if (ret)
+ return ret;
+
+ if (dsa_is_user_port(ds, port))
+ phy_support_asym_pause(phy);
+
+ return 0;
+}
+
+static void an8855_port_disable(struct dsa_switch *ds, int port)
+{
+ an8855_port_set_status(ds->priv, port, false);
+}
+
+static int an8855_set_mac_eee(struct dsa_switch *ds, int port,
+ struct ethtool_keee *eee)
+{
+ struct an8855_priv *priv = ds->priv;
+ u32 reg;
+ int ret;
+
+ if (eee->eee_enabled) {
+ ret = regmap_read(priv->regmap, AN8855_PMCR_P(port), ®);
+ if (ret)
+ return ret;
+ /* Force enable EEE if force mode and LINK */
+ if (reg & AN8855_PMCR_FORCE_MODE &&
+ reg & AN8855_PMCR_FORCE_LNK) {
+ switch (reg & AN8855_PMCR_FORCE_SPEED) {
+ case AN8855_PMCR_FORCE_SPEED_1000:
+ reg |= AN8855_PMCR_FORCE_EEE1G;
+ break;
+ case AN8855_PMCR_FORCE_SPEED_100:
+ reg |= AN8855_PMCR_FORCE_EEE100;
+ break;
+ default:
+ break;
+ }
+ ret = regmap_write(priv->regmap, AN8855_PMCR_P(port), reg);
+ if (ret)
+ return ret;
+ }
+ ret = regmap_update_bits(priv->regmap, AN8855_PMEEECR_P(port),
+ AN8855_LPI_MODE_EN,
+ eee->tx_lpi_enabled ? AN8855_LPI_MODE_EN : 0);
+ if (ret)
+ return ret;
+ } else {
+ ret = regmap_clear_bits(priv->regmap, AN8855_PMCR_P(port),
+ AN8855_PMCR_FORCE_EEE1G |
+ AN8855_PMCR_FORCE_EEE100);
+ if (ret)
+ return ret;
+
+ ret = regmap_clear_bits(priv->regmap, AN8855_PMEEECR_P(port),
+ AN8855_LPI_MODE_EN);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int an8855_get_mac_eee(struct dsa_switch *ds, int port,
+ struct ethtool_keee *eee)
+{
+ struct an8855_priv *priv = ds->priv;
+ u32 reg;
+ int ret;
+
+ ret = regmap_read(priv->regmap, AN8855_PMEEECR_P(port), ®);
+ if (ret)
+ return ret;
+ eee->tx_lpi_enabled = reg & AN8855_LPI_MODE_EN;
+
+ ret = regmap_read(priv->regmap, AN8855_CKGCR, ®);
+ if (ret)
+ return ret;
+ /* Global LPI TXIDLE Threshold, default 60ms (unit 2us) */
+ eee->tx_lpi_timer = FIELD_GET(AN8855_LPI_TXIDLE_THD_MASK, reg) / 500;
+
+ ret = regmap_read(priv->regmap, AN8855_PMSR_P(port), ®);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static u32 en8855_get_phy_flags(struct dsa_switch *ds, int port)
+{
+ struct an8855_priv *priv = ds->priv;
+
+ /* PHY doesn't need calibration */
+ if (!priv->phy_require_calib)
+ return 0;
+
+ /* Use BIT(0) to signal calibration needed */
+ return BIT(0);
+}
+
+static enum dsa_tag_protocol
+an8855_get_tag_protocol(struct dsa_switch *ds, int port,
+ enum dsa_tag_protocol mp)
+{
+ return DSA_TAG_PROTO_MTK;
+}
+
+static int an8855_phy_read(struct mii_bus *bus, int phy, int regnum)
+{
+ struct an8855_priv *priv = bus->priv;
+
+ return mdiobus_read_nested(priv->bus, phy, regnum);
+}
+
+static int an8855_phy_write(struct mii_bus *bus, int phy, int regnum, u16 val)
+{
+ struct an8855_priv *priv = bus->priv;
+
+ return mdiobus_write_nested(priv->bus, phy, regnum, val);
+}
+
+static int an8855_mdio_setup(struct an8855_priv *priv)
+{
+ struct dsa_switch *ds = priv->ds;
+ struct device *dev = priv->dev;
+ struct device_node *np;
+ struct mii_bus *bus;
+ int ret = 0;
+
+ np = of_get_child_by_name(priv->dev->of_node, "mdio");
+ if (!np || !of_device_is_available(np))
+ goto exit;
+
+ bus = devm_mdiobus_alloc(priv->dev);
+ if (!bus) {
+ ret = -ENOMEM;
+ goto exit;
+ }
+
+ bus->priv = priv;
+ bus->name = KBUILD_MODNAME "-mii";
+ snprintf(bus->id, MII_BUS_ID_SIZE, KBUILD_MODNAME "-%d.%d",
+ ds->dst->index, ds->index);
+ bus->parent = dev;
+ bus->read = an8855_phy_read;
+ bus->write = an8855_phy_write;
+
+ ret = devm_of_mdiobus_register(dev, bus, np);
+ if (ret)
+ dev_err(dev, "failed to register MDIO bus: %d", ret);
+
+exit:
+ of_node_put(np);
+ return ret;
+}
+
+static int an8855_setup(struct dsa_switch *ds)
+{
+ struct an8855_priv *priv = ds->priv;
+ struct dsa_port *dp;
+ int ret;
+
+ /* Setup mdio BUS for internal PHY */
+ ret = an8855_mdio_setup(priv);
+ if (ret)
+ return ret;
+
+ /* Enable and reset MIB counters */
+ ret = an8855_mib_init(priv);
+ if (ret)
+ return ret;
+
+ dsa_switch_for_each_port(dp, ds) {
+ /* Disable forwarding by default on all ports */
+ ret = regmap_clear_bits(priv->regmap, AN8855_PORTMATRIX_P(dp->index),
+ AN8855_PORTMATRIX);
+ if (ret)
+ return ret;
+
+ /* Enable consistent egress tag */
+ ret = regmap_update_bits(priv->regmap, AN8855_PVC_P(dp->index),
+ AN8855_PVC_EG_TAG,
+ FIELD_PREP(AN8855_PVC_EG_TAG,
+ AN8855_VLAN_EG_CONSISTENT));
+ if (ret)
+ return ret;
+ }
+
+ /* Disable MAC by default on all user ports */
+ dsa_switch_for_each_user_port(dp, ds) {
+ ret = an8855_port_set_status(priv, dp->index, false);
+ if (ret)
+ return ret;
+ }
+
+ /* Enable Airoha header mode on the cpu port */
+ ret = regmap_write(priv->regmap, AN8855_PVC_P(AN8855_CPU_PORT),
+ AN8855_PORT_SPEC_REPLACE_MODE | AN8855_PORT_SPEC_TAG);
+ if (ret)
+ return ret;
+
+ /* Unknown multicast frame forwarding to the cpu port */
+ ret = regmap_write(priv->regmap, AN8855_UNMF, BIT(AN8855_CPU_PORT));
+ if (ret)
+ return ret;
+
+ /* Set CPU port number */
+ ret = regmap_update_bits(priv->regmap, AN8855_MFC,
+ AN8855_CPU_EN | AN8855_CPU_PORT_IDX,
+ AN8855_CPU_EN |
+ FIELD_PREP(AN8855_CPU_PORT_IDX, AN8855_CPU_PORT));
+ if (ret)
+ return ret;
+
+ /* CPU port gets connected to all user ports of
+ * the switch.
+ */
+ ret = regmap_write(priv->regmap, AN8855_PORTMATRIX_P(AN8855_CPU_PORT),
+ FIELD_PREP(AN8855_PORTMATRIX, dsa_user_ports(ds)));
+ if (ret)
+ return ret;
+
+ /* BPDU to CPU port */
+ ret = regmap_update_bits(priv->regmap, AN8855_BPC, AN8855_BPDU_PORT_FW,
+ FIELD_PREP(AN8855_BPDU_PORT_FW, AN8855_BPDU_CPU_ONLY));
+ if (ret)
+ return ret;
+
+ ret = regmap_clear_bits(priv->regmap, AN8855_CKGCR,
+ AN8855_CKG_LNKDN_GLB_STOP | AN8855_CKG_LNKDN_PORT_STOP);
+ if (ret)
+ return ret;
+
+ /* Release global PHY power down */
+ ret = regmap_write(priv->regmap, AN8855_RG_GPHY_AFE_PWD, 0x0);
+ if (ret)
+ return ret;
+
+ ds->configure_vlan_while_not_filtering = true;
+
+ /* Flush the FDB table */
+ ret = an8855_fdb_cmd(priv, AN8855_FDB_FLUSH, NULL);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static struct phylink_pcs *
+an8855_phylink_mac_select_pcs(struct phylink_config *config,
+ phy_interface_t interface)
+{
+ struct dsa_port *dp = dsa_phylink_to_port(config);
+ struct an8855_priv *priv = dp->ds->priv;
+
+ switch (interface) {
+ case PHY_INTERFACE_MODE_SGMII:
+ case PHY_INTERFACE_MODE_2500BASEX:
+ return &priv->pcs;
+ default:
+ return NULL;
+ }
+}
+
+static void
+an8855_phylink_mac_config(struct phylink_config *config, unsigned int mode,
+ const struct phylink_link_state *state)
+{
+ struct dsa_port *dp = dsa_phylink_to_port(config);
+ struct dsa_switch *ds = dp->ds;
+ struct an8855_priv *priv;
+ int port = dp->index;
+
+ priv = ds->priv;
+
+ switch (port) {
+ case 0:
+ case 1:
+ case 2:
+ case 3:
+ case 4:
+ return;
+ case 5:
+ break;
+ default:
+ dev_err(ds->dev, "unsupported port: %d", port);
+ return;
+ }
+
+ regmap_update_bits(priv->regmap, AN8855_PMCR_P(port),
+ AN8855_PMCR_IFG_XMIT | AN8855_PMCR_MAC_MODE |
+ AN8855_PMCR_BACKOFF_EN | AN8855_PMCR_BACKPR_EN,
+ FIELD_PREP(AN8855_PMCR_IFG_XMIT, 0x1) |
+ AN8855_PMCR_MAC_MODE | AN8855_PMCR_BACKOFF_EN |
+ AN8855_PMCR_BACKPR_EN);
+}
+
+static void an8855_phylink_get_caps(struct dsa_switch *ds, int port,
+ struct phylink_config *config)
+{
+ switch (port) {
+ case 0:
+ case 1:
+ case 2:
+ case 3:
+ case 4:
+ __set_bit(PHY_INTERFACE_MODE_GMII,
+ config->supported_interfaces);
+ __set_bit(PHY_INTERFACE_MODE_INTERNAL,
+ config->supported_interfaces);
+ break;
+ case 5:
+ phy_interface_set_rgmii(config->supported_interfaces);
+ __set_bit(PHY_INTERFACE_MODE_SGMII,
+ config->supported_interfaces);
+ __set_bit(PHY_INTERFACE_MODE_2500BASEX,
+ config->supported_interfaces);
+ break;
+ }
+
+ config->mac_capabilities = MAC_ASYM_PAUSE | MAC_SYM_PAUSE |
+ MAC_10 | MAC_100 | MAC_1000FD;
+}
+
+static void
+an8855_phylink_mac_link_down(struct phylink_config *config, unsigned int mode,
+ phy_interface_t interface)
+{
+ struct dsa_port *dp = dsa_phylink_to_port(config);
+ struct an8855_priv *priv = dp->ds->priv;
+
+ /* With autoneg just disable TX/RX else also force link down */
+ if (phylink_autoneg_inband(mode)) {
+ regmap_clear_bits(priv->regmap, AN8855_PMCR_P(dp->index),
+ AN8855_PMCR_TX_EN | AN8855_PMCR_RX_EN);
+ } else {
+ regmap_update_bits(priv->regmap, AN8855_PMCR_P(dp->index),
+ AN8855_PMCR_TX_EN | AN8855_PMCR_RX_EN |
+ AN8855_PMCR_FORCE_MODE | AN8855_PMCR_FORCE_LNK,
+ AN8855_PMCR_FORCE_MODE);
+ }
+}
+
+static void
+an8855_phylink_mac_link_up(struct phylink_config *config,
+ struct phy_device *phydev, unsigned int mode,
+ phy_interface_t interface, int speed, int duplex,
+ bool tx_pause, bool rx_pause)
+{
+ struct dsa_port *dp = dsa_phylink_to_port(config);
+ struct an8855_priv *priv = dp->ds->priv;
+ int port = dp->index;
+ u32 reg;
+
+ reg = regmap_read(priv->regmap, AN8855_PMCR_P(port), ®);
+ if (phylink_autoneg_inband(mode)) {
+ reg &= ~AN8855_PMCR_FORCE_MODE;
+ } else {
+ reg |= AN8855_PMCR_FORCE_MODE | AN8855_PMCR_FORCE_LNK;
+
+ reg &= ~AN8855_PMCR_FORCE_SPEED;
+ switch (speed) {
+ case SPEED_10:
+ reg |= AN8855_PMCR_FORCE_SPEED_10;
+ break;
+ case SPEED_100:
+ reg |= AN8855_PMCR_FORCE_SPEED_100;
+ break;
+ case SPEED_1000:
+ reg |= AN8855_PMCR_FORCE_SPEED_1000;
+ break;
+ case SPEED_2500:
+ reg |= AN8855_PMCR_FORCE_SPEED_2500;
+ break;
+ case SPEED_5000:
+ reg |= AN8855_PMCR_FORCE_SPEED_5000;
+ break;
+ }
+
+ reg &= AN8855_PMCR_FORCE_FDX;
+ if (duplex == DUPLEX_FULL)
+ reg |= AN8855_PMCR_FORCE_FDX;
+
+ reg &= AN8855_PMCR_RX_FC_EN;
+ if (rx_pause || dsa_port_is_cpu(dp))
+ reg |= AN8855_PMCR_RX_FC_EN;
+
+ reg &= AN8855_PMCR_TX_FC_EN;
+ if (rx_pause || dsa_port_is_cpu(dp))
+ reg |= AN8855_PMCR_TX_FC_EN;
+
+ /* Disable any EEE options */
+ reg &= ~(AN8855_PMCR_FORCE_EEE5G | AN8855_PMCR_FORCE_EEE2P5G |
+ AN8855_PMCR_FORCE_EEE1G | AN8855_PMCR_FORCE_EEE100);
+ }
+
+ reg |= AN8855_PMCR_TX_EN | AN8855_PMCR_RX_EN;
+
+ regmap_write(priv->regmap, AN8855_PMCR_P(port), reg);
+}
+
+static void an8855_pcs_get_state(struct phylink_pcs *pcs,
+ struct phylink_link_state *state)
+{
+ struct an8855_priv *priv = container_of(pcs, struct an8855_priv, pcs);
+ u32 val;
+ int ret;
+
+ ret = regmap_read(priv->regmap, AN8855_PMSR_P(AN8855_CPU_PORT), &val);
+ if (ret < 0) {
+ state->link = false;
+ return;
+ }
+
+ state->link = !!(val & AN8855_PMSR_LNK);
+ state->an_complete = state->link;
+ state->duplex = (val & AN8855_PMSR_DPX) ? DUPLEX_FULL :
+ DUPLEX_HALF;
+
+ switch (val & AN8855_PMSR_SPEED) {
+ case AN8855_PMSR_SPEED_10:
+ state->speed = SPEED_10;
+ break;
+ case AN8855_PMSR_SPEED_100:
+ state->speed = SPEED_100;
+ break;
+ case AN8855_PMSR_SPEED_1000:
+ state->speed = SPEED_1000;
+ break;
+ case AN8855_PMSR_SPEED_2500:
+ state->speed = SPEED_2500;
+ break;
+ case AN8855_PMSR_SPEED_5000:
+ state->speed = SPEED_5000;
+ break;
+ default:
+ state->speed = SPEED_UNKNOWN;
+ break;
+ }
+
+ if (val & AN8855_PMSR_RX_FC)
+ state->pause |= MLO_PAUSE_RX;
+ if (val & AN8855_PMSR_TX_FC)
+ state->pause |= MLO_PAUSE_TX;
+}
+
+static int an8855_pcs_config(struct phylink_pcs *pcs, unsigned int neg_mode,
+ phy_interface_t interface,
+ const unsigned long *advertising,
+ bool permit_pause_to_mac)
+{
+ struct an8855_priv *priv = container_of(pcs, struct an8855_priv, pcs);
+ u32 val;
+ int ret;
+
+ switch (interface) {
+ case PHY_INTERFACE_MODE_RGMII:
+ return 0;
+ case PHY_INTERFACE_MODE_SGMII:
+ break;
+ case PHY_INTERFACE_MODE_2500BASEX:
+ if (neg_mode == PHYLINK_PCS_NEG_INBAND_ENABLED) {
+ dev_err(priv->dev, "in-band negotiation unsupported");
+ return -EINVAL;
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* !!! WELCOME TO HELL !!! */
+
+ /* TX FIR - improve TX EYE */
+ ret = regmap_update_bits(priv->regmap, AN8855_INTF_CTRL_10,
+ AN8855_RG_DA_QP_TX_FIR_C2_SEL |
+ AN8855_RG_DA_QP_TX_FIR_C2_FORCE |
+ AN8855_RG_DA_QP_TX_FIR_C1_SEL |
+ AN8855_RG_DA_QP_TX_FIR_C1_FORCE,
+ AN8855_RG_DA_QP_TX_FIR_C2_SEL |
+ FIELD_PREP(AN8855_RG_DA_QP_TX_FIR_C2_FORCE, 0x4) |
+ AN8855_RG_DA_QP_TX_FIR_C1_SEL |
+ FIELD_PREP(AN8855_RG_DA_QP_TX_FIR_C1_FORCE, 0x0));
+ if (ret)
+ return ret;
+
+ if (interface == PHY_INTERFACE_MODE_2500BASEX)
+ val = 0x0;
+ else
+ val = 0xd;
+ ret = regmap_update_bits(priv->regmap, AN8855_INTF_CTRL_11,
+ AN8855_RG_DA_QP_TX_FIR_C0B_SEL |
+ AN8855_RG_DA_QP_TX_FIR_C0B_FORCE,
+ AN8855_RG_DA_QP_TX_FIR_C0B_SEL |
+ FIELD_PREP(AN8855_RG_DA_QP_TX_FIR_C0B_FORCE, val));
+ if (ret)
+ return ret;
+
+ /* RX CDR - improve RX Jitter Tolerance */
+ if (interface == PHY_INTERFACE_MODE_2500BASEX)
+ val = 0x5;
+ else
+ val = 0x6;
+ ret = regmap_update_bits(priv->regmap, AN8855_RG_QP_CDR_LPF_BOT_LIM,
+ AN8855_RG_QP_CDR_LPF_KP_GAIN |
+ AN8855_RG_QP_CDR_LPF_KI_GAIN,
+ FIELD_PREP(AN8855_RG_QP_CDR_LPF_KP_GAIN, val) |
+ FIELD_PREP(AN8855_RG_QP_CDR_LPF_KI_GAIN, val));
+ if (ret)
+ return ret;
+
+ /* PLL */
+ if (interface == PHY_INTERFACE_MODE_2500BASEX)
+ val = 0x1;
+ else
+ val = 0x0;
+ ret = regmap_update_bits(priv->regmap, AN8855_QP_DIG_MODE_CTRL_1,
+ AN8855_RG_TPHY_SPEED,
+ FIELD_PREP(AN8855_RG_TPHY_SPEED, val));
+ if (ret)
+ return ret;
+
+ /* PLL - LPF */
+ ret = regmap_update_bits(priv->regmap, AN8855_PLL_CTRL_2,
+ AN8855_RG_DA_QP_PLL_RICO_SEL_INTF |
+ AN8855_RG_DA_QP_PLL_FBKSEL_INTF |
+ AN8855_RG_DA_QP_PLL_BR_INTF |
+ AN8855_RG_DA_QP_PLL_BPD_INTF |
+ AN8855_RG_DA_QP_PLL_BPA_INTF |
+ AN8855_RG_DA_QP_PLL_BC_INTF,
+ AN8855_RG_DA_QP_PLL_RICO_SEL_INTF |
+ FIELD_PREP(AN8855_RG_DA_QP_PLL_FBKSEL_INTF, 0x0) |
+ FIELD_PREP(AN8855_RG_DA_QP_PLL_BR_INTF, 0x3) |
+ FIELD_PREP(AN8855_RG_DA_QP_PLL_BPD_INTF, 0x0) |
+ FIELD_PREP(AN8855_RG_DA_QP_PLL_BPA_INTF, 0x5) |
+ FIELD_PREP(AN8855_RG_DA_QP_PLL_BC_INTF, 0x1));
+ if (ret)
+ return ret;
+
+ /* PLL - ICO */
+ ret = regmap_set_bits(priv->regmap, AN8855_PLL_CTRL_4,
+ AN8855_RG_DA_QP_PLL_ICOLP_EN_INTF);
+ if (ret)
+ return ret;
+ ret = regmap_clear_bits(priv->regmap, AN8855_PLL_CTRL_2,
+ AN8855_RG_DA_QP_PLL_ICOIQ_EN_INTF);
+ if (ret)
+ return ret;
+
+ /* PLL - CHP */
+ if (interface == PHY_INTERFACE_MODE_2500BASEX)
+ val = 0x6;
+ else
+ val = 0x4;
+ ret = regmap_update_bits(priv->regmap, AN8855_PLL_CTRL_2,
+ AN8855_RG_DA_QP_PLL_IR_INTF,
+ FIELD_PREP(AN8855_RG_DA_QP_PLL_IR_INTF, val));
+ if (ret)
+ return ret;
+
+ /* PLL - PFD */
+ ret = regmap_update_bits(priv->regmap, AN8855_PLL_CTRL_2,
+ AN8855_RG_DA_QP_PLL_PFD_OFFSET_EN_INTRF |
+ AN8855_RG_DA_QP_PLL_PFD_OFFSET_INTF |
+ AN8855_RG_DA_QP_PLL_KBAND_PREDIV_INTF,
+ FIELD_PREP(AN8855_RG_DA_QP_PLL_PFD_OFFSET_INTF, 0x1) |
+ FIELD_PREP(AN8855_RG_DA_QP_PLL_KBAND_PREDIV_INTF, 0x1));
+ if (ret)
+ return ret;
+
+ /* PLL - POSTDIV */
+ ret = regmap_update_bits(priv->regmap, AN8855_PLL_CTRL_2,
+ AN8855_RG_DA_QP_PLL_POSTDIV_EN_INTF |
+ AN8855_RG_DA_QP_PLL_PHY_CK_EN_INTF |
+ AN8855_RG_DA_QP_PLL_PCK_SEL_INTF,
+ AN8855_RG_DA_QP_PLL_PCK_SEL_INTF);
+ if (ret)
+ return ret;
+
+ /* PLL - SDM */
+ ret = regmap_update_bits(priv->regmap, AN8855_PLL_CTRL_2,
+ AN8855_RG_DA_QP_PLL_SDM_HREN_INTF,
+ FIELD_PREP(AN8855_RG_DA_QP_PLL_SDM_HREN_INTF, 0x0));
+ if (ret)
+ return ret;
+ ret = regmap_clear_bits(priv->regmap, AN8855_PLL_CTRL_2,
+ AN8855_RG_DA_QP_PLL_SDM_IFM_INTF);
+ if (ret)
+ return ret;
+
+ ret = regmap_update_bits(priv->regmap, AN8855_SS_LCPLL_PWCTL_SETTING_2,
+ AN8855_RG_NCPO_ANA_MSB,
+ FIELD_PREP(AN8855_RG_NCPO_ANA_MSB, 0x1));
+ if (ret)
+ return ret;
+
+ if (interface == PHY_INTERFACE_MODE_2500BASEX)
+ val = 0x7a000000;
+ else
+ val = 0x48000000;
+ ret = regmap_write(priv->regmap, AN8855_SS_LCPLL_TDC_FLT_2,
+ FIELD_PREP(AN8855_RG_LCPLL_NCPO_VALUE, val));
+ if (ret)
+ return ret;
+ ret = regmap_write(priv->regmap, AN8855_SS_LCPLL_TDC_PCW_1,
+ FIELD_PREP(AN8855_RG_LCPLL_PON_HRDDS_PCW_NCPO_GPON, val));
+ if (ret)
+ return ret;
+
+ ret = regmap_clear_bits(priv->regmap, AN8855_SS_LCPLL_TDC_FLT_5,
+ AN8855_RG_LCPLL_NCPO_CHG);
+ if (ret)
+ return ret;
+ ret = regmap_clear_bits(priv->regmap, AN8855_PLL_CK_CTRL_0,
+ AN8855_RG_DA_QP_PLL_SDM_DI_EN_INTF);
+ if (ret)
+ return ret;
+
+ /* PLL - SS */
+ ret = regmap_update_bits(priv->regmap, AN8855_PLL_CTRL_3,
+ AN8855_RG_DA_QP_PLL_SSC_DELTA_INTF,
+ FIELD_PREP(AN8855_RG_DA_QP_PLL_SSC_DELTA_INTF, 0x0));
+ if (ret)
+ return ret;
+ ret = regmap_update_bits(priv->regmap, AN8855_PLL_CTRL_4,
+ AN8855_RG_DA_QP_PLL_SSC_DIR_DLY_INTF,
+ FIELD_PREP(AN8855_RG_DA_QP_PLL_SSC_DIR_DLY_INTF, 0x0));
+ if (ret)
+ return ret;
+ ret = regmap_update_bits(priv->regmap, AN8855_PLL_CTRL_3,
+ AN8855_RG_DA_QP_PLL_SSC_PERIOD_INTF,
+ FIELD_PREP(AN8855_RG_DA_QP_PLL_SSC_PERIOD_INTF, 0x0));
+ if (ret)
+ return ret;
+
+ /* PLL - TDC */
+ ret = regmap_clear_bits(priv->regmap, AN8855_PLL_CK_CTRL_0,
+ AN8855_RG_DA_QP_PLL_TDC_TXCK_SEL_INTF);
+ if (ret)
+ return ret;
+
+ ret = regmap_set_bits(priv->regmap, AN8855_RG_QP_PLL_SDM_ORD,
+ AN8855_RG_QP_PLL_SSC_TRI_EN);
+ if (ret)
+ return ret;
+ ret = regmap_set_bits(priv->regmap, AN8855_RG_QP_PLL_SDM_ORD,
+ AN8855_RG_QP_PLL_SSC_PHASE_INI);
+ if (ret)
+ return ret;
+
+ ret = regmap_update_bits(priv->regmap, AN8855_RG_QP_RX_DAC_EN,
+ AN8855_RG_QP_SIGDET_HF,
+ FIELD_PREP(AN8855_RG_QP_SIGDET_HF, 0x2));
+ if (ret)
+ return ret;
+
+ /* TCL Disable (only for Co-SIM) */
+ ret = regmap_clear_bits(priv->regmap, AN8855_PON_RXFEDIG_CTRL_0,
+ AN8855_RG_QP_EQ_RX500M_CK_SEL);
+ if (ret)
+ return ret;
+
+ /* TX Init */
+ if (interface == PHY_INTERFACE_MODE_2500BASEX)
+ val = 0x4;
+ else
+ val = 0x0;
+ ret = regmap_update_bits(priv->regmap, AN8855_RG_QP_TX_MODE,
+ AN8855_RG_QP_TX_RESERVE |
+ AN8855_RG_QP_TX_MODE_16B_EN,
+ FIELD_PREP(AN8855_RG_QP_TX_RESERVE, val));
+ if (ret)
+ return ret;
+
+ /* RX Control/Init */
+ ret = regmap_set_bits(priv->regmap, AN8855_RG_QP_RXAFE_RESERVE,
+ AN8855_RG_QP_CDR_PD_10B_EN);
+ if (ret)
+ return ret;
+
+ if (interface == PHY_INTERFACE_MODE_2500BASEX)
+ val = 0x1;
+ else
+ val = 0x2;
+ ret = regmap_update_bits(priv->regmap, AN8855_RG_QP_CDR_LPF_MJV_LIM,
+ AN8855_RG_QP_CDR_LPF_RATIO,
+ FIELD_PREP(AN8855_RG_QP_CDR_LPF_RATIO, val));
+ if (ret)
+ return ret;
+
+ ret = regmap_update_bits(priv->regmap, AN8855_RG_QP_CDR_LPF_SETVALUE,
+ AN8855_RG_QP_CDR_PR_BUF_IN_SR |
+ AN8855_RG_QP_CDR_PR_BETA_SEL,
+ FIELD_PREP(AN8855_RG_QP_CDR_PR_BUF_IN_SR, 0x6) |
+ FIELD_PREP(AN8855_RG_QP_CDR_PR_BETA_SEL, 0x1));
+ if (ret)
+ return ret;
+
+ if (interface == PHY_INTERFACE_MODE_2500BASEX)
+ val = 0xf;
+ else
+ val = 0xc;
+ ret = regmap_update_bits(priv->regmap, AN8855_RG_QP_CDR_PR_CKREF_DIV1,
+ AN8855_RG_QP_CDR_PR_DAC_BAND,
+ FIELD_PREP(AN8855_RG_QP_CDR_PR_DAC_BAND, val));
+ if (ret)
+ return ret;
+
+ ret = regmap_update_bits(priv->regmap, AN8855_RG_QP_CDR_PR_KBAND_DIV_PCIE,
+ AN8855_RG_QP_CDR_PR_KBAND_PCIE_MODE |
+ AN8855_RG_QP_CDR_PR_KBAND_DIV_PCIE_MASK,
+ FIELD_PREP(AN8855_RG_QP_CDR_PR_KBAND_DIV_PCIE_MASK, 0x19));
+ if (ret)
+ return ret;
+
+ ret = regmap_update_bits(priv->regmap, AN8855_RG_QP_CDR_FORCE_IBANDLPF_R_OFF,
+ AN8855_RG_QP_CDR_PHYCK_SEL |
+ AN8855_RG_QP_CDR_PHYCK_RSTB |
+ AN8855_RG_QP_CDR_PHYCK_DIV,
+ FIELD_PREP(AN8855_RG_QP_CDR_PHYCK_SEL, 0x2) |
+ FIELD_PREP(AN8855_RG_QP_CDR_PHYCK_DIV, 0x21));
+ if (ret)
+ return ret;
+
+ ret = regmap_clear_bits(priv->regmap, AN8855_RG_QP_CDR_PR_KBAND_DIV_PCIE,
+ AN8855_RG_QP_CDR_PR_XFICK_EN);
+ if (ret)
+ return ret;
+
+ ret = regmap_update_bits(priv->regmap, AN8855_RG_QP_CDR_PR_CKREF_DIV1,
+ AN8855_RG_QP_CDR_PR_KBAND_DIV,
+ FIELD_PREP(AN8855_RG_QP_CDR_PR_KBAND_DIV, 0x4));
+ if (ret)
+ return ret;
+
+ ret = regmap_update_bits(priv->regmap, AN8855_RX_CTRL_26,
+ AN8855_RG_QP_EQ_RETRAIN_ONLY_EN |
+ AN8855_RG_LINK_NE_EN |
+ AN8855_RG_LINK_ERRO_EN,
+ AN8855_RG_QP_EQ_RETRAIN_ONLY_EN |
+ AN8855_RG_LINK_ERRO_EN);
+ if (ret)
+ return ret;
+
+ ret = regmap_update_bits(priv->regmap, AN8855_RX_DLY_0,
+ AN8855_RG_QP_RX_SAOSC_EN_H_DLY |
+ AN8855_RG_QP_RX_PI_CAL_EN_H_DLY,
+ FIELD_PREP(AN8855_RG_QP_RX_SAOSC_EN_H_DLY, 0x3f) |
+ FIELD_PREP(AN8855_RG_QP_RX_PI_CAL_EN_H_DLY, 0x6f));
+ if (ret)
+ return ret;
+
+ ret = regmap_update_bits(priv->regmap, AN8855_RX_CTRL_42,
+ AN8855_RG_QP_EQ_EN_DLY,
+ FIELD_PREP(AN8855_RG_QP_EQ_EN_DLY, 0x150));
+ if (ret)
+ return ret;
+
+ ret = regmap_update_bits(priv->regmap, AN8855_RX_CTRL_2,
+ AN8855_RG_QP_RX_EQ_EN_H_DLY,
+ FIELD_PREP(AN8855_RG_QP_RX_EQ_EN_H_DLY, 0x150));
+ if (ret)
+ return ret;
+
+ ret = regmap_update_bits(priv->regmap, AN8855_PON_RXFEDIG_CTRL_9,
+ AN8855_RG_QP_EQ_LEQOSC_DLYCNT,
+ FIELD_PREP(AN8855_RG_QP_EQ_LEQOSC_DLYCNT, 0x1));
+ if (ret)
+ return ret;
+
+ ret = regmap_update_bits(priv->regmap, AN8855_RX_CTRL_8,
+ AN8855_RG_DA_QP_SAOSC_DONE_TIME |
+ AN8855_RG_DA_QP_LEQOS_EN_TIME,
+ FIELD_PREP(AN8855_RG_DA_QP_SAOSC_DONE_TIME, 0x200) |
+ FIELD_PREP(AN8855_RG_DA_QP_LEQOS_EN_TIME, 0xfff));
+ if (ret)
+ return ret;
+
+ /* Frequency meter */
+ if (interface == PHY_INTERFACE_MODE_2500BASEX)
+ val = 0x10;
+ else
+ val = 0x28;
+ ret = regmap_update_bits(priv->regmap, AN8855_RX_CTRL_5,
+ AN8855_RG_FREDET_CHK_CYCLE,
+ FIELD_PREP(AN8855_RG_FREDET_CHK_CYCLE, val));
+ if (ret)
+ return ret;
+
+ ret = regmap_update_bits(priv->regmap, AN8855_RX_CTRL_6,
+ AN8855_RG_FREDET_GOLDEN_CYCLE,
+ FIELD_PREP(AN8855_RG_FREDET_GOLDEN_CYCLE, 0x64));
+ if (ret)
+ return ret;
+
+ ret = regmap_update_bits(priv->regmap, AN8855_RX_CTRL_7,
+ AN8855_RG_FREDET_TOLERATE_CYCLE,
+ FIELD_PREP(AN8855_RG_FREDET_TOLERATE_CYCLE, 0x2710));
+ if (ret)
+ return ret;
+
+ ret = regmap_set_bits(priv->regmap, AN8855_PLL_CTRL_0,
+ AN8855_RG_PHYA_AUTO_INIT);
+ if (ret)
+ return ret;
+
+ /* PCS Init */
+ if (interface == PHY_INTERFACE_MODE_SGMII &&
+ neg_mode == PHYLINK_PCS_NEG_INBAND_DISABLED) {
+ ret = regmap_clear_bits(priv->regmap, AN8855_QP_DIG_MODE_CTRL_0,
+ AN8855_RG_SGMII_MODE | AN8855_RG_SGMII_AN_EN);
+ if (ret)
+ return ret;
+ }
+
+ ret = regmap_clear_bits(priv->regmap, AN8855_RG_HSGMII_PCS_CTROL_1,
+ AN8855_RG_TBI_10B_MODE);
+ if (ret)
+ return ret;
+
+ if (neg_mode == PHYLINK_PCS_NEG_INBAND_ENABLED) {
+ /* Set AN Ability - Interrupt */
+ ret = regmap_set_bits(priv->regmap, AN8855_SGMII_REG_AN_FORCE_CL37,
+ AN8855_RG_FORCE_AN_DONE);
+ if (ret)
+ return ret;
+
+ ret = regmap_update_bits(priv->regmap, AN8855_SGMII_REG_AN_13,
+ AN8855_SGMII_REMOTE_FAULT_DIS |
+ AN8855_SGMII_IF_MODE,
+ AN8855_SGMII_REMOTE_FAULT_DIS |
+ FIELD_PREP(AN8855_SGMII_IF_MODE, 0xb));
+ if (ret)
+ return ret;
+ }
+
+ /* Rate Adaption - GMII path config. */
+ if (interface == PHY_INTERFACE_MODE_2500BASEX) {
+ ret = regmap_clear_bits(priv->regmap, AN8855_RATE_ADP_P0_CTRL_0,
+ AN8855_RG_P0_DIS_MII_MODE);
+ if (ret)
+ return ret;
+ } else {
+ if (neg_mode == PHYLINK_PCS_NEG_INBAND_ENABLED) {
+ ret = regmap_set_bits(priv->regmap, AN8855_MII_RA_AN_ENABLE,
+ AN8855_RG_P0_RA_AN_EN);
+ if (ret)
+ return ret;
+ } else {
+ ret = regmap_update_bits(priv->regmap, AN8855_RG_AN_SGMII_MODE_FORCE,
+ AN8855_RG_FORCE_CUR_SGMII_MODE |
+ AN8855_RG_FORCE_CUR_SGMII_SEL,
+ AN8855_RG_FORCE_CUR_SGMII_SEL);
+ if (ret)
+ return ret;
+
+ ret = regmap_clear_bits(priv->regmap, AN8855_RATE_ADP_P0_CTRL_0,
+ AN8855_RG_P0_MII_RA_RX_EN |
+ AN8855_RG_P0_MII_RA_TX_EN |
+ AN8855_RG_P0_MII_RA_RX_MODE |
+ AN8855_RG_P0_MII_RA_TX_MODE);
+ if (ret)
+ return ret;
+ }
+
+ ret = regmap_set_bits(priv->regmap, AN8855_RATE_ADP_P0_CTRL_0,
+ AN8855_RG_P0_MII_MODE);
+ if (ret)
+ return ret;
+ }
+
+ ret = regmap_set_bits(priv->regmap, AN8855_RG_RATE_ADAPT_CTRL_0,
+ AN8855_RG_RATE_ADAPT_RX_BYPASS |
+ AN8855_RG_RATE_ADAPT_TX_BYPASS |
+ AN8855_RG_RATE_ADAPT_RX_EN |
+ AN8855_RG_RATE_ADAPT_TX_EN);
+ if (ret)
+ return ret;
+
+ /* Disable AN if not in autoneg */
+ ret = regmap_update_bits(priv->regmap, AN8855_SGMII_REG_AN0, BMCR_ANENABLE,
+ neg_mode == PHYLINK_PCS_NEG_INBAND_ENABLED ? BMCR_ANENABLE :
+ 0);
+
+ if (interface == PHY_INTERFACE_MODE_SGMII &&
+ neg_mode == PHYLINK_PCS_NEG_INBAND_DISABLED) {
+ ret = regmap_set_bits(priv->regmap, AN8855_PHY_RX_FORCE_CTRL_0,
+ AN8855_RG_FORCE_TXC_SEL);
+ if (ret)
+ return ret;
+ }
+
+ /* Force Speed with fixed-link or 2500base-x as doesn't support aneg */
+ if (interface == PHY_INTERFACE_MODE_2500BASEX ||
+ neg_mode != PHYLINK_PCS_NEG_INBAND_ENABLED) {
+ if (interface == PHY_INTERFACE_MODE_2500BASEX)
+ val = AN8855_RG_LINK_MODE_P0_SPEED_2500;
+ else
+ val = AN8855_RG_LINK_MODE_P0_SPEED_1000;
+ ret = regmap_update_bits(priv->regmap, AN8855_SGMII_STS_CTRL_0,
+ AN8855_RG_LINK_MODE_P0 |
+ AN8855_RG_FORCE_SPD_MODE_P0,
+ val | AN8855_RG_FORCE_SPD_MODE_P0);
+ if (ret)
+ return ret;
+ }
+
+ /* bypass flow control to MAC */
+ ret = regmap_write(priv->regmap, AN8855_MSG_RX_LIK_STS_0,
+ AN8855_RG_DPX_STS_P3 | AN8855_RG_DPX_STS_P2 |
+ AN8855_RG_DPX_STS_P1 | AN8855_RG_TXFC_STS_P0 |
+ AN8855_RG_RXFC_STS_P0 | AN8855_RG_DPX_STS_P0);
+ if (ret)
+ return ret;
+ ret = regmap_write(priv->regmap, AN8855_MSG_RX_LIK_STS_2,
+ AN8855_RG_RXFC_AN_BYPASS_P3 |
+ AN8855_RG_RXFC_AN_BYPASS_P2 |
+ AN8855_RG_RXFC_AN_BYPASS_P1 |
+ AN8855_RG_TXFC_AN_BYPASS_P3 |
+ AN8855_RG_TXFC_AN_BYPASS_P2 |
+ AN8855_RG_TXFC_AN_BYPASS_P1 |
+ AN8855_RG_DPX_AN_BYPASS_P3 |
+ AN8855_RG_DPX_AN_BYPASS_P2 |
+ AN8855_RG_DPX_AN_BYPASS_P1 |
+ AN8855_RG_DPX_AN_BYPASS_P0);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static void an8855_pcs_an_restart(struct phylink_pcs *pcs)
+{
+ struct an8855_priv *priv = container_of(pcs, struct an8855_priv, pcs);
+
+ regmap_set_bits(priv->regmap, AN8855_SGMII_REG_AN0, BMCR_ANRESTART);
+}
+
+static const struct phylink_pcs_ops an8855_pcs_ops = {
+ .pcs_get_state = an8855_pcs_get_state,
+ .pcs_config = an8855_pcs_config,
+ .pcs_an_restart = an8855_pcs_an_restart,
+};
+
+static const struct phylink_mac_ops an8855_phylink_mac_ops = {
+ .mac_select_pcs = an8855_phylink_mac_select_pcs,
+ .mac_config = an8855_phylink_mac_config,
+ .mac_link_down = an8855_phylink_mac_link_down,
+ .mac_link_up = an8855_phylink_mac_link_up,
+};
+
+static const struct dsa_switch_ops an8855_switch_ops = {
+ .get_tag_protocol = an8855_get_tag_protocol,
+ .setup = an8855_setup,
+ .get_strings = an8855_get_strings,
+ .get_ethtool_stats = an8855_get_ethtool_stats,
+ .get_sset_count = an8855_get_sset_count,
+ .port_enable = an8855_port_enable,
+ .port_disable = an8855_port_disable,
+ .port_stp_state_set = an8855_stp_state_set,
+ .port_bridge_join = an8855_port_bridge_join,
+ .port_bridge_leave = an8855_port_bridge_leave,
+ .port_fdb_add = an8855_port_fdb_add,
+ .port_fdb_del = an8855_port_fdb_del,
+ .port_fdb_dump = an8855_port_fdb_dump,
+ .port_vlan_filtering = an8855_port_vlan_filtering,
+ .port_vlan_add = an8855_port_vlan_add,
+ .port_vlan_del = an8855_port_vlan_del,
+ .port_mirror_add = an8855_port_mirror_add,
+ .port_mirror_del = an8855_port_mirror_del,
+ .phylink_get_caps = an8855_phylink_get_caps,
+ .get_phy_flags = en8855_get_phy_flags,
+ .get_mac_eee = an8855_get_mac_eee,
+ .set_mac_eee = an8855_set_mac_eee,
+};
+
+static int an8855_read_switch_id(struct an8855_priv *priv)
+{
+ u32 id;
+ int ret;
+
+ ret = regmap_read(priv->regmap, AN8855_CREV, &id);
+ if (ret)
+ return ret;
+
+ if (id != AN8855_ID) {
+ dev_err(priv->dev,
+ "Switch id detected %x but expected %x",
+ id, AN8855_ID);
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static int an8855_efuse_read(void *context, unsigned int offset,
+ void *val, size_t bytes)
+{
+ struct an8855_priv *priv = context;
+
+ return regmap_bulk_read(priv->regmap, AN8855_EFUSE_DATA0 + offset,
+ val, bytes / sizeof(u32));
+}
+
+static struct nvmem_config an8855_nvmem_config = {
+ .name = "an8855-efuse",
+ .size = AN8855_EFUSE_CELL * sizeof(u32),
+ .stride = sizeof(u32),
+ .word_size = sizeof(u32),
+ .reg_read = an8855_efuse_read,
+};
+
+static int an8855_sw_register_nvmem(struct an8855_priv *priv)
+{
+ struct nvmem_device *nvmem;
+
+ an8855_nvmem_config.priv = priv;
+ an8855_nvmem_config.dev = priv->dev;
+ nvmem = devm_nvmem_register(priv->dev, &an8855_nvmem_config);
+ if (IS_ERR(nvmem))
+ return PTR_ERR(nvmem);
+
+ return 0;
+}
+
+static int
+an8855_sw_probe(struct mdio_device *mdiodev)
+{
+ struct an8855_priv *priv;
+ u32 val;
+ int ret;
+
+ priv = devm_kzalloc(&mdiodev->dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->bus = mdiodev->bus;
+ priv->dev = &mdiodev->dev;
+ priv->phy_base = mdiodev->addr;
+ priv->phy_require_calib = of_property_read_bool(priv->dev->of_node,
+ "airoha,ext-surge");
+
+ priv->reset_gpio = devm_gpiod_get_optional(priv->dev, "reset",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(priv->reset_gpio))
+ return PTR_ERR(priv->reset_gpio);
+
+ priv->regmap = devm_regmap_init(&mdiodev->dev, NULL, priv,
+ &an8855_regmap_config);
+ if (IS_ERR(priv->regmap)) {
+ dev_err(priv->dev, "regmap initialization failed");
+ return PTR_ERR(priv->regmap);
+ }
+
+ if (priv->reset_gpio) {
+ usleep_range(100000, 150000);
+ gpiod_set_value_cansleep(priv->reset_gpio, 0);
+ usleep_range(100000, 150000);
+ gpiod_set_value_cansleep(priv->reset_gpio, 1);
+
+ /* Poll HWTRAP reg to wait for Switch to fully Init */
+ ret = regmap_read_poll_timeout(priv->regmap, AN8855_HWTRAP, val,
+ val, 20, 200000);
+ if (ret)
+ return ret;
+ }
+
+ ret = an8855_read_switch_id(priv);
+ if (ret)
+ return ret;
+
+ priv->ds = devm_kzalloc(&mdiodev->dev, sizeof(*priv->ds), GFP_KERNEL);
+ if (!priv->ds)
+ return -ENOMEM;
+
+ priv->ds->dev = &mdiodev->dev;
+ priv->ds->num_ports = AN8855_NUM_PORTS;
+ priv->ds->priv = priv;
+ priv->ds->ops = &an8855_switch_ops;
+ mutex_init(&priv->reg_mutex);
+ priv->ds->phylink_mac_ops = &an8855_phylink_mac_ops;
+
+ priv->pcs.ops = &an8855_pcs_ops;
+ priv->pcs.neg_mode = true;
+ priv->pcs.poll = true;
+
+ ret = an8855_sw_register_nvmem(priv);
+ if (ret)
+ return ret;
+
+ dev_set_drvdata(&mdiodev->dev, priv);
+
+ return dsa_register_switch(priv->ds);
+}
+
+static void
+an8855_sw_remove(struct mdio_device *mdiodev)
+{
+ struct an8855_priv *priv = dev_get_drvdata(&mdiodev->dev);
+
+ dsa_unregister_switch(priv->ds);
+ mutex_destroy(&priv->reg_mutex);
+}
+
+static const struct of_device_id an8855_of_match[] = {
+ { .compatible = "airoha,an8855" },
+ { /* sentinel */ },
+};
+
+static struct mdio_driver an8855_mdio_driver = {
+ .probe = an8855_sw_probe,
+ .remove = an8855_sw_remove,
+ .mdiodrv.driver = {
+ .name = "an8855",
+ .of_match_table = an8855_of_match,
+ },
+};
+
+mdio_module_driver(an8855_mdio_driver);
+
+MODULE_AUTHOR("Min Yao <min.yao@airoha.com>");
+MODULE_AUTHOR("Christian Marangi <ansuelsmth@gmail.com>");
+MODULE_DESCRIPTION("Driver for Airoha AN8855 Switch");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/dsa/an8855.h b/drivers/net/dsa/an8855.h
new file mode 100644
index 000000000000..dc1822147669
--- /dev/null
+++ b/drivers/net/dsa/an8855.h
@@ -0,0 +1,628 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2023 Min Yao <min.yao@airoha.com>
+ * Copyright (C) 2024 Christian Marangi <ansuelsmth@gmail.com>
+ */
+
+#ifndef __AN8855_H
+#define __AN8855_H
+
+#include <linux/bitfield.h>
+
+#define AN8855_NUM_PORTS 6
+#define AN8855_CPU_PORT 5
+#define AN8855_NUM_FDB_RECORDS 2048
+#define AN8855_GPHY_SMI_ADDR_DEFAULT 1
+#define AN8855_PORT_VID_DEFAULT 1
+#define AN8855_EFUSE_CELL 50
+
+/* MII Registers */
+#define AN8855_PHY_SELECT_PAGE 0x1f
+/* Mask speculation based on page up to 0x4 */
+#define AN8855_PHY_PAGE GENMASK(2, 0)
+#define AN8855_PHY_PAGE_STANDARD FIELD_PREP_CONST(AN8855_PHY_PAGE, 0x0)
+#define AN8855_PHY_PAGE_EXTENDED_1 FIELD_PREP_CONST(AN8855_PHY_PAGE, 0x1)
+#define AN8855_PHY_PAGE_EXTENDED_4 FIELD_PREP_CONST(AN8855_PHY_PAGE, 0x4)
+
+/* MII Registers Page 4 */
+#define AN8855_PBUS_MODE 0x10
+#define AN8855_PBUS_MODE_ADDR_FIXED 0x0
+#define AN8855_PBUS_MODE_ADDR_INCR BIT(15)
+#define AN8855_PBUS_WR_ADDR_HIGH 0x11
+#define AN8855_PBUS_WR_ADDR_LOW 0x12
+#define AN8855_PBUS_WR_DATA_HIGH 0x13
+#define AN8855_PBUS_WR_DATA_LOW 0x14
+#define AN8855_PBUS_RD_ADDR_HIGH 0x15
+#define AN8855_PBUS_RD_ADDR_LOW 0x16
+#define AN8855_PBUS_RD_DATA_HIGH 0x17
+#define AN8855_PBUS_RD_DATA_LOW 0x18
+
+/* AN8855_SCU 0x10000000 */
+#define AN8855_RG_GPIO_LED_MODE 0x10000054
+#define AN8855_RG_GPIO_LED_SEL(i) (0x10000000 + (0x0058 + ((i) * 4)))
+#define AN8855_RG_INTB_MODE 0x10000080
+#define AN8855_RG_RGMII_TXCK_C 0x100001d0
+
+#define AN8855_PKG_SEL 0x10000094
+#define AN8855_PAG_SEL_AN8855H 0x2
+
+/* Register for hw trap status */
+#define AN8855_HWTRAP 0x1000009c
+
+#define AN8855_RG_GPIO_L_INV 0x10000010
+#define AN8855_RG_GPIO_CTRL 0x1000a300
+#define AN8855_RG_GPIO_DATA 0x1000a304
+#define AN8855_RG_GPIO_OE 0x1000a314
+
+#define AN8855_EFUSE_DATA0 0x1000a500
+#define AN8855_EFUSE_R50O GENMASK(30, 24)
+
+#define AN8855_CREV 0x10005000
+#define AN8855_ID 0x8855
+
+/* Register for system reset */
+#define AN8855_RST_CTRL 0x100050c0
+#define AN8855_SYS_CTRL_SYS_RST BIT(31)
+
+#define AN8855_INT_MASK 0x100050f0
+#define AN8855_INT_SYS BIT(15)
+
+#define AN8855_RG_CLK_CPU_ICG 0x10005034
+#define AN8855_MCU_ENABLE BIT(3)
+
+#define AN8855_RG_TIMER_CTL 0x1000a100
+#define AN8855_WDOG_ENABLE BIT(25)
+
+#define AN8855_RG_GDMP_RAM 0x10010000
+
+/* Registers to mac forward control for unknown frames */
+#define AN8855_MFC 0x10200010
+#define AN8855_CPU_EN BIT(15)
+#define AN8855_CPU_PORT_IDX GENMASK(12, 8)
+
+#define AN8855_UNUF 0x102000b4
+#define AN8855_UNMF 0x102000b8
+#define AN8855_BCF 0x102000bc
+
+/* Registers for mirror port control */
+#define AN8855_MIR 0x102000cc
+#define AN8855_MIRROR_EN BIT(7)
+#define AN8855_MIRROR_PORT GENMASK(4, 0)
+
+/* Registers for BPDU and PAE frame control*/
+#define AN8855_BPC 0x102000D0
+#define AN8855_BPDU_PORT_FW GENMASK(2, 0)
+
+enum an8855_bpdu_port_fw {
+ AN8855_BPDU_FOLLOW_MFC = 0,
+ AN8855_BPDU_CPU_EXCLUDE = 4,
+ AN8855_BPDU_CPU_INCLUDE = 5,
+ AN8855_BPDU_CPU_ONLY = 6,
+ AN8855_BPDU_DROP = 7,
+};
+
+/* Register for address table control */
+#define AN8855_ATC 0x10200300
+#define AN8855_ATC_BUSY BIT(31)
+#define AN8855_ATC_HASH GENMASK(24, 16)
+#define AN8855_ATC_HIT GENMASK(15, 12)
+#define AN8855_ATC_MAT_MASK GENMASK(11, 7)
+#define AN8855_ATC_MAT(x) FIELD_PREP(AN8855_ATC_MAT_MASK, x)
+#define AN8855_ATC_SAT GENMASK(5, 4)
+#define AN8855_ATC_CMD GENMASK(2, 0)
+
+enum an8855_fdb_mat_cmds {
+ AND8855_FDB_MAT_ALL = 0,
+ AND8855_FDB_MAT_MAC, /* All MAC address */
+ AND8855_FDB_MAT_DYNAMIC_MAC, /* All Dynamic MAC address */
+ AND8855_FDB_MAT_STATIC_MAC, /* All Static Mac Address */
+ AND8855_FDB_MAT_DIP, /* All DIP/GA address */
+ AND8855_FDB_MAT_DIP_IPV4, /* All DIP/GA IPv4 address */
+ AND8855_FDB_MAT_DIP_IPV6, /* All DIP/GA IPv6 address */
+ AND8855_FDB_MAT_DIP_SIP, /* All DIP_SIP address */
+ AND8855_FDB_MAT_DIP_SIP_IPV4, /* All DIP_SIP IPv4 address */
+ AND8855_FDB_MAT_DIP_SIP_IPV6, /* All DIP_SIP IPv6 address */
+ AND8855_FDB_MAT_MAC_CVID, /* All MAC address with CVID */
+ AND8855_FDB_MAT_MAC_FID, /* All MAC address with Filter ID */
+ AND8855_FDB_MAT_MAC_PORT, /* All MAC address with port */
+ AND8855_FDB_MAT_DIP_SIP_DIP_IPV4, /* All DIP_SIP address with DIP_IPV4 */
+ AND8855_FDB_MAT_DIP_SIP_SIP_IPV4, /* All DIP_SIP address with SIP_IPV4 */
+ AND8855_FDB_MAT_DIP_SIP_DIP_IPV6, /* All DIP_SIP address with DIP_IPV6 */
+ AND8855_FDB_MAT_DIP_SIP_SIP_IPV6, /* All DIP_SIP address with SIP_IPV6 */
+ /* All MAC address with MAC type (dynamic or static) with CVID */
+ AND8855_FDB_MAT_MAC_TYPE_CVID,
+ /* All MAC address with MAC type (dynamic or static) with Filter ID */
+ AND8855_FDB_MAT_MAC_TYPE_FID,
+ /* All MAC address with MAC type (dynamic or static) with port */
+ AND8855_FDB_MAT_MAC_TYPE_PORT,
+};
+
+enum an8855_fdb_cmds {
+ AN8855_FDB_READ = 0,
+ AN8855_FDB_WRITE = 1,
+ AN8855_FDB_FLUSH = 2,
+ AN8855_FDB_START = 4,
+ AN8855_FDB_NEXT = 5,
+};
+
+/* Registers for address table access */
+#define AN8855_ATA1 0x10200304
+#define AN8855_ATA1_MAC0 GENMASK(31, 24)
+#define AN8855_ATA1_MAC1 GENMASK(23, 16)
+#define AN8855_ATA1_MAC2 GENMASK(15, 8)
+#define AN8855_ATA1_MAC3 GENMASK(7, 0)
+#define AN8855_ATA2 0x10200308
+#define AN8855_ATA2_MAC4 GENMASK(31, 24)
+#define AN8855_ATA2_MAC5 GENMASK(23, 16)
+
+/* Register for address table write data */
+#define AN8855_ATWD 0x10200324
+#define AN8855_ATWD_VLD BIT(0) /* vid LOAD */
+#define AN8855_ATWD_LEAKY BIT(1)
+#define AN8855_ATWD_UPRI GENMASK(4, 2)
+#define AN8855_ATWD_SA_FWD GENMASK(7, 5)
+#define AN8855_ATWD_SA_MIR GENMASK(9, 8)
+#define AN8855_ATWD_EG_TAG GENMASK(14, 12)
+#define AN8855_ATWD_IVL BIT(15)
+#define AN8855_ATWD_VID GENMASK(27, 16)
+#define AN8855_ATWD_FID GENMASK(31, 28)
+#define AN8855_ATWD2 0x10200328
+#define AN8855_ATWD2_PORT GENMASK(7, 0)
+
+/* Registers for table search read address */
+#define AN8855_ATRDS 0x10200330
+#define AN8855_ATRD_SEL GENMASK(1, 0)
+#define AN8855_ATRD0 0x10200334
+#define AN8855_ATRD0_LIVE BIT(0)
+#define AN8855_ATRD0_ARP GENMASK(2, 1)
+#define AN8855_ATRD0_TYPE GENMASK(4, 3)
+#define AN8855_ATRD0_IVL BIT(9)
+#define AN8855_ATRD0_VID GENMASK(21, 16)
+#define AN8855_ATRD0_FID GENMASK(28, 25)
+#define AN8855_ATRD1 0x10200338
+#define AN8855_ATRD1_MAC4 GENMASK(31, 24)
+#define AN8855_ATRD1_MAC5 GENMASK(23, 16)
+#define AN8855_ATRD1_AGING GENMASK(11, 3)
+#define AN8855_ATRD2 0x1020033c
+#define AN8855_ATRD2_MAC0 GENMASK(31, 24)
+#define AN8855_ATRD2_MAC1 GENMASK(23, 16)
+#define AN8855_ATRD2_MAC2 GENMASK(15, 8)
+#define AN8855_ATRD2_MAC3 GENMASK(7, 0)
+#define AN8855_ATRD3 0x10200340
+#define AN8855_ATRD3_PORTMASK GENMASK(7, 0)
+
+enum an8855_fdb_type {
+ AN8855_MAC_TB_TY_MAC = 0,
+ AN8855_MAC_TB_TY_DIP = 1,
+ AN8855_MAC_TB_TY_DIP_SIP = 2,
+};
+
+/* Register for vlan table control */
+#define AN8855_VTCR 0x10200600
+#define AN8855_VTCR_BUSY BIT(31)
+#define AN8855_VTCR_FUNC GENMASK(15, 12)
+#define AN8855_VTCR_VID GENMASK(11, 0)
+
+enum an8855_vlan_cmd {
+ /* Read/Write the specified VID entry from VAWD register based
+ * on VID.
+ */
+ AN8855_VTCR_RD_VID = 0,
+ AN8855_VTCR_WR_VID = 1,
+};
+
+/* Register for setup vlan write data */
+#define AN8855_VAWD0 0x10200604
+/* VLAN Member Control */
+#define AN8855_VA0_PORT GENMASK(31, 26)
+/* Egress Tag Control */
+#define AN8855_VA0_ETAG GENMASK(23, 12)
+#define AN8855_VA0_ETAG_PORT GENMASK(13, 12)
+#define AN8855_VA0_ETAG_PORT_SHIFT(port) ((port) * 2)
+#define AN8855_VA0_ETAG_PORT_MASK(port) (AN8855_VA0_ETAG_PORT << \
+ AN8855_VA0_ETAG_PORT_SHIFT(port))
+#define AN8855_VA0_ETAG_PORT_VAL(port, val) (FIELD_PREP(AN8855_VA0_ETAG_PORT, (val)) << \
+ AN8855_VA0_ETAG_PORT_SHIFT(port))
+#define AN8855_VA0_VTAG_EN BIT(10) /* Per VLAN Egress Tag Control */
+#define AN8855_VA0_IVL_MAC BIT(5) /* Independent VLAN Learning */
+#define AN8855_VA0_VLAN_VALID BIT(0) /* VLAN Entry Valid */
+#define AN8855_VAWD1 0x10200608
+#define AN8855_VA1_PORT_STAG BIT(1)
+
+/* Same register map of VAWD0 */
+#define AN8855_VARD0 0x10200618
+
+enum an8855_vlan_egress_attr {
+ AN8855_VLAN_EGRESS_UNTAG = 0,
+ AN8855_VLAN_EGRESS_TAG = 2,
+ AN8855_VLAN_EGRESS_STACK = 3,
+};
+
+/* Register for port STP state control */
+#define AN8855_SSP_P(x) (0x10208000 + ((x) * 0x200))
+#define AN8855_FID_PST GENMASK(1, 0)
+
+enum an8855_stp_state {
+ AN8855_STP_DISABLED = 0,
+ AN8855_STP_BLOCKING = 1,
+ AN8855_STP_LISTENING = 1,
+ AN8855_STP_LEARNING = 2,
+ AN8855_STP_FORWARDING = 3
+};
+
+/* Register for port control */
+#define AN8855_PCR_P(x) (0x10208004 + ((x) * 0x200))
+#define AN8855_EG_TAG GENMASK(29, 28)
+#define AN8855_PORT_PRI GENMASK(26, 24)
+#define AN8855_PORT_TX_MIR BIT(20)
+#define AN8855_PORT_RX_MIR BIT(16)
+#define AN8855_PORT_VLAN GENMASK(1, 0)
+
+enum an8855_port_mode {
+ /* Port Matrix Mode: Frames are forwarded by the PCR_MATRIX members. */
+ AN8855_PORT_MATRIX_MODE = 0,
+
+ /* Fallback Mode: Forward received frames with ingress ports that do
+ * not belong to the VLAN member. Frames whose VID is not listed on
+ * the VLAN table are forwarded by the PCR_MATRIX members.
+ */
+ AN8855_PORT_FALLBACK_MODE = 1,
+
+ /* Check Mode: Forward received frames whose ingress do not
+ * belong to the VLAN member. Discard frames if VID ismiddes on the
+ * VLAN table.
+ */
+ AN8855_PORT_CHECK_MODE = 1,
+
+ /* Security Mode: Discard any frame due to ingress membership
+ * violation or VID missed on the VLAN table.
+ */
+ AN8855_PORT_SECURITY_MODE = 3,
+};
+
+/* Register for port security control */
+#define AN8855_PSC_P(x) (0x1020800c + ((x) * 0x200))
+#define AN8855_SA_DIS BIT(4)
+
+/* Register for port vlan control */
+#define AN8855_PVC_P(x) (0x10208010 + ((x) * 0x200))
+#define AN8855_PVC_EG_TAG GENMASK(10, 8)
+#define AN8855_PORT_SPEC_REPLACE_MODE BIT(11)
+#define AN8855_VLAN_ATTR GENMASK(7, 6)
+#define AN8855_PORT_SPEC_TAG BIT(5)
+
+enum an8855_vlan_port_eg_tag {
+ AN8855_VLAN_EG_DISABLED = 0,
+ AN8855_VLAN_EG_CONSISTENT = 1,
+ AN8855_VLAN_EG_UNTAGGED = 4,
+ AN8855_VLAN_EG_SWAP = 5,
+ AN8855_VLAN_EG_TAGGED = 6,
+ AN8855_VLAN_EG_STACK = 7,
+};
+
+enum an8855_vlan_port_attr {
+ AN8855_VLAN_USER = 0,
+ AN8855_VLAN_STACK = 1,
+ AN8855_VLAN_TRANSPARENT = 3,
+};
+
+#define AN8855_PORTMATRIX_P(x) (0x10208044 + ((x) * 0x200))
+#define AN8855_PORTMATRIX GENMASK(6, 0)
+
+/* Register for port PVID */
+#define AN8855_PVID_P(x) (0x10208048 + ((x) * 0x200))
+#define AN8855_G0_PORT_VID GENMASK(11, 0)
+
+/* Register for port MAC control register */
+#define AN8855_PMCR_P(x) (0x10210000 + ((x) * 0x200))
+#define AN8855_PMCR_FORCE_MODE BIT(31)
+#define AN8855_PMCR_FORCE_SPEED GENMASK(30, 28)
+#define AN8855_PMCR_FORCE_SPEED_5000 FIELD_PREP_CONST(AN8855_PMCR_FORCE_SPEED, 0x4)
+#define AN8855_PMCR_FORCE_SPEED_2500 FIELD_PREP_CONST(AN8855_PMCR_FORCE_SPEED, 0x3)
+#define AN8855_PMCR_FORCE_SPEED_1000 FIELD_PREP_CONST(AN8855_PMCR_FORCE_SPEED, 0x2)
+#define AN8855_PMCR_FORCE_SPEED_100 FIELD_PREP_CONST(AN8855_PMCR_FORCE_SPEED, 0x1)
+#define AN8855_PMCR_FORCE_SPEED_10 FIELD_PREP_CONST(AN8855_PMCR_FORCE_SPEED, 0x1)
+#define AN8855_PMCR_FORCE_FDX BIT(25)
+#define AN8855_PMCR_FORCE_LNK BIT(24)
+#define AN8855_PMCR_IFG_XMIT GENMASK(21, 20)
+#define AN8855_PMCR_EXT_PHY BIT(19)
+#define AN8855_PMCR_MAC_MODE BIT(18)
+#define AN8855_PMCR_TX_EN BIT(16)
+#define AN8855_PMCR_RX_EN BIT(15)
+#define AN8855_PMCR_BACKOFF_EN BIT(12)
+#define AN8855_PMCR_BACKPR_EN BIT(11)
+#define AN8855_PMCR_FORCE_EEE5G BIT(9)
+#define AN8855_PMCR_FORCE_EEE2P5G BIT(8)
+#define AN8855_PMCR_FORCE_EEE1G BIT(7)
+#define AN8855_PMCR_FORCE_EEE100 BIT(6)
+#define AN8855_PMCR_TX_FC_EN BIT(5)
+#define AN8855_PMCR_RX_FC_EN BIT(4)
+
+#define AN8855_PMSR_P(x) (0x10210010 + (x) * 0x200)
+#define AN8855_PMSR_SPEED GENMASK(30, 28)
+#define AN8855_PMSR_SPEED_5000 FIELD_PREP_CONST(AN8855_PMSR_SPEED, 0x4)
+#define AN8855_PMSR_SPEED_2500 FIELD_PREP_CONST(AN8855_PMSR_SPEED, 0x3)
+#define AN8855_PMSR_SPEED_1000 FIELD_PREP_CONST(AN8855_PMSR_SPEED, 0x2)
+#define AN8855_PMSR_SPEED_100 FIELD_PREP_CONST(AN8855_PMSR_SPEED, 0x1)
+#define AN8855_PMSR_SPEED_10 FIELD_PREP_CONST(AN8855_PMSR_SPEED, 0x0)
+#define AN8855_PMSR_DPX BIT(25)
+#define AN8855_PMSR_LNK BIT(24)
+#define AN8855_PMSR_EEE1G BIT(7)
+#define AN8855_PMSR_EEE100M BIT(6)
+#define AN8855_PMSR_RX_FC BIT(5)
+#define AN8855_PMSR_TX_FC BIT(4)
+
+#define AN8855_PMEEECR_P(x) (0x10210004 + (x) * 0x200)
+#define AN8855_LPI_MODE_EN BIT(31)
+#define AN8855_WAKEUP_TIME_2500 GENMASK(23, 16)
+#define AN8855_WAKEUP_TIME_1000 GENMASK(15, 8)
+#define AN8855_WAKEUP_TIME_100 GENMASK(7, 0)
+#define AN8855_PMEEECR2_P(x) (0x10210008 + (x) * 0x200)
+#define AN8855_WAKEUP_TIME_5000 GENMASK(7, 0)
+
+#define AN8855_CKGCR (0x10213e1c)
+#define AN8855_LPI_TXIDLE_THD_MASK GENMASK(31, 14)
+#define AN8855_CKG_LNKDN_PORT_STOP BIT(1)
+#define AN8855_CKG_LNKDN_GLB_STOP BIT(0)
+
+/* Register for MIB */
+#define AN8855_PORT_MIB_COUNTER(x) (0x10214000 + (x) * 0x200)
+#define AN8855_MIB_CCR 0x10213e30
+#define AN8855_CCR_MIB_ENABLE BIT(31)
+#define AN8855_CCR_RX_OCT_CNT_GOOD BIT(7)
+#define AN8855_CCR_RX_OCT_CNT_BAD BIT(6)
+#define AN8855_CCR_TX_OCT_CNT_GOOD BIT(5)
+#define AN8855_CCR_TX_OCT_CNT_BAD BIT(4)
+#define AN8855_CCR_RX_OCT_CNT_GOOD_2 BIT(3)
+#define AN8855_CCR_RX_OCT_CNT_BAD_2 BIT(2)
+#define AN8855_CCR_TX_OCT_CNT_GOOD_2 BIT(1)
+#define AN8855_CCR_TX_OCT_CNT_BAD_2 BIT(0)
+#define AN8855_CCR_MIB_ACTIVATE (AN8855_CCR_MIB_ENABLE | \
+ AN8855_CCR_RX_OCT_CNT_GOOD | \
+ AN8855_CCR_RX_OCT_CNT_BAD | \
+ AN8855_CCR_TX_OCT_CNT_GOOD | \
+ AN8855_CCR_TX_OCT_CNT_BAD | \
+ AN8855_CCR_RX_OCT_CNT_BAD_2 | \
+ AN8855_CCR_TX_OCT_CNT_BAD_2)
+#define AN8855_MIB_CLR 0x10213e34
+#define AN8855_MIB_PORT6_CLR BIT(6)
+#define AN8855_MIB_PORT5_CLR BIT(5)
+#define AN8855_MIB_PORT4_CLR BIT(4)
+#define AN8855_MIB_PORT3_CLR BIT(3)
+#define AN8855_MIB_PORT2_CLR BIT(2)
+#define AN8855_MIB_PORT1_CLR BIT(1)
+#define AN8855_MIB_PORT0_CLR BIT(0)
+
+/* HSGMII/SGMII Configuration register */
+/* AN8855_HSGMII_AN_CSR_BASE 0x10220000 */
+#define AN8855_SGMII_REG_AN0 0x10220000
+/* AN8855_SGMII_AN_ENABLE BMCR_ANENABLE */
+/* AN8855_SGMII_AN_RESTART BMCR_ANRESTART */
+#define AN8855_SGMII_REG_AN_13 0x10220034
+#define AN8855_SGMII_REMOTE_FAULT_DIS BIT(8)
+#define AN8855_SGMII_IF_MODE GENMASK(5, 0)
+#define AN8855_SGMII_REG_AN_FORCE_CL37 0x10220060
+#define AN8855_RG_FORCE_AN_DONE BIT(0)
+
+/* AN8855_HSGMII_CSR_PCS_BASE 0x10220000 */
+#define AN8855_RG_HSGMII_PCS_CTROL_1 0x10220a00
+#define AN8855_RG_TBI_10B_MODE BIT(30)
+#define AN8855_RG_AN_SGMII_MODE_FORCE 0x10220a24
+#define AN8855_RG_FORCE_CUR_SGMII_MODE GENMASK(5, 4)
+#define AN8855_RG_FORCE_CUR_SGMII_SEL BIT(0)
+
+/* AN8855_MULTI_SGMII_CSR_BASE 0x10224000 */
+#define AN8855_SGMII_STS_CTRL_0 0x10224018
+#define AN8855_RG_LINK_MODE_P0 GENMASK(5, 4)
+#define AN8855_RG_LINK_MODE_P0_SPEED_2500 FIELD_PREP_CONST(AN8855_RG_LINK_MODE_P0, 0x3)
+#define AN8855_RG_LINK_MODE_P0_SPEED_1000 FIELD_PREP_CONST(AN8855_RG_LINK_MODE_P0, 0x2)
+#define AN8855_RG_LINK_MODE_P0_SPEED_100 FIELD_PREP_CONST(AN8855_RG_LINK_MODE_P0, 0x1)
+#define AN8855_RG_LINK_MODE_P0_SPEED_10 FIELD_PREP_CONST(AN8855_RG_LINK_MODE_P0, 0x0)
+#define AN8855_RG_FORCE_SPD_MODE_P0 BIT(2)
+#define AN8855_MSG_RX_CTRL_0 0x10224100
+#define AN8855_MSG_RX_LIK_STS_0 0x10224514
+#define AN8855_RG_DPX_STS_P3 BIT(24)
+#define AN8855_RG_DPX_STS_P2 BIT(16)
+#define AN8855_RG_EEE1G_STS_P1 BIT(12)
+#define AN8855_RG_DPX_STS_P1 BIT(8)
+#define AN8855_RG_TXFC_STS_P0 BIT(2)
+#define AN8855_RG_RXFC_STS_P0 BIT(1)
+#define AN8855_RG_DPX_STS_P0 BIT(0)
+#define AN8855_MSG_RX_LIK_STS_2 0x1022451c
+#define AN8855_RG_RXFC_AN_BYPASS_P3 BIT(11)
+#define AN8855_RG_RXFC_AN_BYPASS_P2 BIT(10)
+#define AN8855_RG_RXFC_AN_BYPASS_P1 BIT(9)
+#define AN8855_RG_TXFC_AN_BYPASS_P3 BIT(7)
+#define AN8855_RG_TXFC_AN_BYPASS_P2 BIT(6)
+#define AN8855_RG_TXFC_AN_BYPASS_P1 BIT(5)
+#define AN8855_RG_DPX_AN_BYPASS_P3 BIT(3)
+#define AN8855_RG_DPX_AN_BYPASS_P2 BIT(2)
+#define AN8855_RG_DPX_AN_BYPASS_P1 BIT(1)
+#define AN8855_RG_DPX_AN_BYPASS_P0 BIT(0)
+#define AN8855_PHY_RX_FORCE_CTRL_0 0x10224520
+#define AN8855_RG_FORCE_TXC_SEL BIT(4)
+
+/* AN8855_XFI_CSR_PCS_BASE 0x10225000 */
+#define AN8855_RG_USXGMII_AN_CONTROL_0 0x10225bf8
+
+/* AN8855_MULTI_PHY_RA_CSR_BASE 0x10226000 */
+#define AN8855_RG_RATE_ADAPT_CTRL_0 0x10226000
+#define AN8855_RG_RATE_ADAPT_RX_BYPASS BIT(27)
+#define AN8855_RG_RATE_ADAPT_TX_BYPASS BIT(26)
+#define AN8855_RG_RATE_ADAPT_RX_EN BIT(4)
+#define AN8855_RG_RATE_ADAPT_TX_EN BIT(0)
+#define AN8855_RATE_ADP_P0_CTRL_0 0x10226100
+#define AN8855_RG_P0_DIS_MII_MODE BIT(31)
+#define AN8855_RG_P0_MII_MODE BIT(28)
+#define AN8855_RG_P0_MII_RA_RX_EN BIT(3)
+#define AN8855_RG_P0_MII_RA_TX_EN BIT(2)
+#define AN8855_RG_P0_MII_RA_RX_MODE BIT(1)
+#define AN8855_RG_P0_MII_RA_TX_MODE BIT(0)
+#define AN8855_MII_RA_AN_ENABLE 0x10226300
+#define AN8855_RG_P0_RA_AN_EN BIT(0)
+
+/* AN8855_QP_DIG_CSR_BASE 0x1022a000 */
+#define AN8855_QP_CK_RST_CTRL_4 0x1022a310
+#define AN8855_QP_DIG_MODE_CTRL_0 0x1022a324
+#define AN8855_RG_SGMII_MODE GENMASK(5, 4)
+#define AN8855_RG_SGMII_AN_EN BIT(0)
+#define AN8855_QP_DIG_MODE_CTRL_1 0x1022a330
+#define AN8855_RG_TPHY_SPEED GENMASK(3, 2)
+
+/* AN8855_SERDES_WRAPPER_BASE 0x1022c000 */
+#define AN8855_USGMII_CTRL_0 0x1022c000
+
+/* AN8855_QP_PMA_TOP_BASE 0x1022e000 */
+#define AN8855_PON_RXFEDIG_CTRL_0 0x1022e100
+#define AN8855_RG_QP_EQ_RX500M_CK_SEL BIT(12)
+#define AN8855_PON_RXFEDIG_CTRL_9 0x1022e124
+#define AN8855_RG_QP_EQ_LEQOSC_DLYCNT GENMASK(2, 0)
+
+#define AN8855_SS_LCPLL_PWCTL_SETTING_2 0x1022e208
+#define AN8855_RG_NCPO_ANA_MSB GENMASK(17, 16)
+#define AN8855_SS_LCPLL_TDC_FLT_2 0x1022e230
+#define AN8855_RG_LCPLL_NCPO_VALUE GENMASK(30, 0)
+#define AN8855_SS_LCPLL_TDC_FLT_5 0x1022e23c
+#define AN8855_RG_LCPLL_NCPO_CHG BIT(24)
+#define AN8855_SS_LCPLL_TDC_PCW_1 0x1022e248
+#define AN8855_RG_LCPLL_PON_HRDDS_PCW_NCPO_GPON GENMASK(30, 0)
+#define AN8855_INTF_CTRL_8 0x1022e320
+#define AN8855_INTF_CTRL_9 0x1022e324
+#define AN8855_INTF_CTRL_10 0x1022e328
+#define AN8855_RG_DA_QP_TX_FIR_C2_SEL BIT(29)
+#define AN8855_RG_DA_QP_TX_FIR_C2_FORCE GENMASK(28, 24)
+#define AN8855_RG_DA_QP_TX_FIR_C1_SEL BIT(21)
+#define AN8855_RG_DA_QP_TX_FIR_C1_FORCE GENMASK(20, 16)
+#define AN8855_INTF_CTRL_11 0x1022e32c
+#define AN8855_RG_DA_QP_TX_FIR_C0B_SEL BIT(6)
+#define AN8855_RG_DA_QP_TX_FIR_C0B_FORCE GENMASK(5, 0)
+#define AN8855_PLL_CTRL_0 0x1022e400
+#define AN8855_RG_PHYA_AUTO_INIT BIT(0)
+#define AN8855_PLL_CTRL_2 0x1022e408
+#define AN8855_RG_DA_QP_PLL_SDM_IFM_INTF BIT(30)
+#define AN8855_RG_DA_QP_PLL_RICO_SEL_INTF BIT(29)
+#define AN8855_RG_DA_QP_PLL_POSTDIV_EN_INTF BIT(28)
+#define AN8855_RG_DA_QP_PLL_PHY_CK_EN_INTF BIT(27)
+#define AN8855_RG_DA_QP_PLL_PFD_OFFSET_EN_INTRF BIT(26)
+#define AN8855_RG_DA_QP_PLL_PFD_OFFSET_INTF GENMASK(25, 24)
+#define AN8855_RG_DA_QP_PLL_PCK_SEL_INTF BIT(22)
+#define AN8855_RG_DA_QP_PLL_KBAND_PREDIV_INTF GENMASK(21, 20)
+#define AN8855_RG_DA_QP_PLL_IR_INTF GENMASK(19, 16)
+#define AN8855_RG_DA_QP_PLL_ICOIQ_EN_INTF BIT(14)
+#define AN8855_RG_DA_QP_PLL_FBKSEL_INTF GENMASK(13, 12)
+#define AN8855_RG_DA_QP_PLL_BR_INTF GENMASK(10, 8)
+#define AN8855_RG_DA_QP_PLL_BPD_INTF GENMASK(7, 6)
+#define AN8855_RG_DA_QP_PLL_BPA_INTF GENMASK(4, 2)
+#define AN8855_RG_DA_QP_PLL_BC_INTF GENMASK(1, 0)
+#define AN8855_PLL_CTRL_3 0x1022e40c
+#define AN8855_RG_DA_QP_PLL_SSC_PERIOD_INTF GENMASK(31, 16)
+#define AN8855_RG_DA_QP_PLL_SSC_DELTA_INTF GENMASK(15, 0)
+#define AN8855_PLL_CTRL_4 0x1022e410
+#define AN8855_RG_DA_QP_PLL_SDM_HREN_INTF GENMASK(4, 3)
+#define AN8855_RG_DA_QP_PLL_ICOLP_EN_INTF BIT(2)
+#define AN8855_RG_DA_QP_PLL_SSC_DIR_DLY_INTF GENMASK(1, 0)
+#define AN8855_PLL_CK_CTRL_0 0x1022e414
+#define AN8855_RG_DA_QP_PLL_TDC_TXCK_SEL_INTF BIT(9)
+#define AN8855_RG_DA_QP_PLL_SDM_DI_EN_INTF BIT(8)
+#define AN8855_RX_DLY_0 0x1022e614
+#define AN8855_RG_QP_RX_SAOSC_EN_H_DLY GENMASK(13, 8)
+#define AN8855_RG_QP_RX_PI_CAL_EN_H_DLY GENMASK(7, 0)
+#define AN8855_RX_CTRL_2 0x1022e630
+#define AN8855_RG_QP_RX_EQ_EN_H_DLY GENMASK(28, 16)
+#define AN8855_RX_CTRL_5 0x1022e63c
+#define AN8855_RG_FREDET_CHK_CYCLE GENMASK(29, 10)
+#define AN8855_RX_CTRL_6 0x1022e640
+#define AN8855_RG_FREDET_GOLDEN_CYCLE GENMASK(19, 0)
+#define AN8855_RX_CTRL_7 0x1022e644
+#define AN8855_RG_FREDET_TOLERATE_CYCLE GENMASK(19, 0)
+#define AN8855_RX_CTRL_8 0x1022e648
+#define AN8855_RG_DA_QP_SAOSC_DONE_TIME GENMASK(27, 16)
+#define AN8855_RG_DA_QP_LEQOS_EN_TIME GENMASK(14, 0)
+#define AN8855_RX_CTRL_26 0x1022e690
+#define AN8855_RG_QP_EQ_RETRAIN_ONLY_EN BIT(26)
+#define AN8855_RG_LINK_NE_EN BIT(24)
+#define AN8855_RG_LINK_ERRO_EN BIT(23)
+#define AN8855_RX_CTRL_42 0x1022e6d0
+#define AN8855_RG_QP_EQ_EN_DLY GENMASK(12, 0)
+
+/* AN8855_QP_ANA_CSR_BASE 0x1022f000 */
+#define AN8855_RG_QP_RX_DAC_EN 0x1022f000
+#define AN8855_RG_QP_SIGDET_HF GENMASK(17, 16)
+#define AN8855_RG_QP_RXAFE_RESERVE 0x1022f004
+#define AN8855_RG_QP_CDR_PD_10B_EN BIT(11)
+#define AN8855_RG_QP_CDR_LPF_BOT_LIM 0x1022f008
+#define AN8855_RG_QP_CDR_LPF_KP_GAIN GENMASK(26, 24)
+#define AN8855_RG_QP_CDR_LPF_KI_GAIN GENMASK(22, 20)
+#define AN8855_RG_QP_CDR_LPF_MJV_LIM 0x1022f00c
+#define AN8855_RG_QP_CDR_LPF_RATIO GENMASK(5, 4)
+#define AN8855_RG_QP_CDR_LPF_SETVALUE 0x1022f014
+#define AN8855_RG_QP_CDR_PR_BUF_IN_SR GENMASK(31, 29)
+#define AN8855_RG_QP_CDR_PR_BETA_SEL GENMASK(28, 25)
+#define AN8855_RG_QP_CDR_PR_CKREF_DIV1 0x1022f018
+#define AN8855_RG_QP_CDR_PR_KBAND_DIV GENMASK(26, 24)
+#define AN8855_RG_QP_CDR_PR_DAC_BAND GENMASK(12, 8)
+#define AN8855_RG_QP_CDR_PR_KBAND_DIV_PCIE 0x1022f01c
+#define AN8855_RG_QP_CDR_PR_XFICK_EN BIT(30)
+#define AN8855_RG_QP_CDR_PR_KBAND_PCIE_MODE BIT(6)
+#define AN8855_RG_QP_CDR_PR_KBAND_DIV_PCIE_MASK GENMASK(5, 0)
+#define AN8855_RG_QP_CDR_FORCE_IBANDLPF_R_OFF 0x1022f020
+#define AN8855_RG_QP_CDR_PHYCK_SEL GENMASK(17, 16)
+#define AN8855_RG_QP_CDR_PHYCK_RSTB BIT(13)
+#define AN8855_RG_QP_CDR_PHYCK_DIV GENMASK(12, 6)
+#define AN8855_RG_QP_TX_MODE 0x1022f028
+#define AN8855_RG_QP_TX_RESERVE GENMASK(31, 16)
+#define AN8855_RG_QP_TX_MODE_16B_EN BIT(0)
+#define AN8855_RG_QP_PLL_IPLL_DIG_PWR_SEL 0x1022f03c
+#define AN8855_RG_QP_PLL_SDM_ORD 0x1022f040
+#define AN8855_RG_QP_PLL_SSC_PHASE_INI BIT(4)
+#define AN8855_RG_QP_PLL_SSC_TRI_EN BIT(3)
+
+/* AN8855_ETHER_SYS_BASE 0x1028c800 */
+#define AN8855_RG_GPHY_AFE_PWD 0x1028c840
+#define AN8855_RG_GPHY_SMI_ADDR 0x1028c848
+
+#define MIB_DESC(_s, _o, _n) \
+ { \
+ .size = (_s), \
+ .offset = (_o), \
+ .name = (_n), \
+ }
+
+struct an8855_mib_desc {
+ unsigned int size;
+ unsigned int offset;
+ const char *name;
+};
+
+struct an8855_fdb {
+ u16 vid;
+ u8 port_mask;
+ u8 aging;
+ u8 mac[6];
+ bool noarp;
+ u8 live;
+ u8 type;
+ u8 fid;
+ u8 ivl;
+};
+
+struct an8855_priv {
+ struct device *dev;
+ struct dsa_switch *ds;
+ struct mii_bus *bus;
+ struct regmap *regmap;
+ struct gpio_desc *reset_gpio;
+ /* Protect ATU or VLAN table access */
+ struct mutex reg_mutex;
+
+ struct phylink_pcs pcs;
+
+ unsigned int phy_base;
+
+ u8 mirror_rx;
+ u8 mirror_tx;
+
+ bool phy_require_calib;
+};
+
+#endif /* __AN8855_H */
--
2.45.2On Wed, Nov 06, 2024 at 01:22:37PM +0100, Christian Marangi wrote:
> +static int an8855_port_enable(struct dsa_switch *ds, int port,
> + struct phy_device *phy)
> +{
> + int ret;
> +
> + ret = an8855_port_set_status(ds->priv, port, true);
> + if (ret)
> + return ret;
> +
> + if (dsa_is_user_port(ds, port))
> + phy_support_asym_pause(phy);
This is unnecessary if you've set the phylink capabilities correctly
because phylink_bringup_phy() will setup the PHY accordingly.
> +static u32 en8855_get_phy_flags(struct dsa_switch *ds, int port)
> +{
> + struct an8855_priv *priv = ds->priv;
> +
> + /* PHY doesn't need calibration */
> + if (!priv->phy_require_calib)
> + return 0;
> +
> + /* Use BIT(0) to signal calibration needed */
> + return BIT(0);
This should be a #define somewhere that preferably includes the PHY
name so we have an idea in future which PHY driver is going to be
making use of this random bit.
> +static struct phylink_pcs *
> +an8855_phylink_mac_select_pcs(struct phylink_config *config,
> + phy_interface_t interface)
> +{
> + struct dsa_port *dp = dsa_phylink_to_port(config);
> + struct an8855_priv *priv = dp->ds->priv;
> +
> + switch (interface) {
> + case PHY_INTERFACE_MODE_SGMII:
> + case PHY_INTERFACE_MODE_2500BASEX:
> + return &priv->pcs;
> + default:
> + return NULL;
> + }
> +}
> +
> +static void
> +an8855_phylink_mac_config(struct phylink_config *config, unsigned int mode,
> + const struct phylink_link_state *state)
> +{
> + struct dsa_port *dp = dsa_phylink_to_port(config);
> + struct dsa_switch *ds = dp->ds;
> + struct an8855_priv *priv;
> + int port = dp->index;
> +
> + priv = ds->priv;
> +
> + switch (port) {
> + case 0:
> + case 1:
> + case 2:
> + case 3:
> + case 4:
> + return;
> + case 5:
> + break;
> + default:
> + dev_err(ds->dev, "unsupported port: %d", port);
> + return;
> + }
if (port != 5) {
if (port > 5)
dev_err(ds->dev, "unsupported port: %d", port);
return;
}
is simpler, no?
> +static int an8855_pcs_config(struct phylink_pcs *pcs, unsigned int neg_mode,
> + phy_interface_t interface,
> + const unsigned long *advertising,
> + bool permit_pause_to_mac)
> +{
> + struct an8855_priv *priv = container_of(pcs, struct an8855_priv, pcs);
> + u32 val;
> + int ret;
> +
> + switch (interface) {
> + case PHY_INTERFACE_MODE_RGMII:
> + return 0;
This shouldn't happen. First, in an8855_phylink_mac_select_pcs(), you
don't return a PCS in this mode. Second, phylink is highly unlikely to
switch from SGMII/2500baseX to RGMII mode. Third, in commit
486dc391ef43 ("net: phylink: allow mac_select_pcs() to remove a PCS")
will ensure that if phylink does do such a switch, because
an8855_phylink_mac_select_pcs() returns NULL for RGMII, these PCS
functions will never be called for RGMII modes.
Thanks.
--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!
Le 06/11/2024 à 13:22, Christian Marangi a écrit :
> Add Airoha AN8855 5-Port Gigabit DSA switch.
>
> The switch is also a nvmem-provider as it does have EFUSE to calibrate
> the internal PHYs.
>
> Signed-off-by: Christian Marangi <ansuelsmth-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> ---
Hi,
...
> +#include <linux/bitfield.h>
> +#include <linux/ethtool.h>
> +#include <linux/etherdevice.h>
> +#include <linux/gpio/consumer.h>
> +#include <linux/if_bridge.h>
> +#include <linux/iopoll.h>
> +#include <linux/mdio.h>
> +#include <linux/netdevice.h>
> +#include <linux/of_mdio.h>
> +#include <linux/of_net.h>
> +#include <linux/of_platform.h>
> +#include <linux/nvmem-provider.h>
Could be moved a few lines above to keep order.
> +#include <linux/phylink.h>
> +#include <linux/regmap.h>
> +#include <net/dsa.h>
...
> +static int an8855_port_fdb_dump(struct dsa_switch *ds, int port,
> + dsa_fdb_dump_cb_t *cb, void *data)
> +{
> + struct an8855_priv *priv = ds->priv;
> + struct an8855_fdb _fdb = { };
Should it but reseted in the do loop below, instead of only once here?
> + int banks, count = 0;
> + u32 rsp;
> + int ret;
> + int i;
> +
> + mutex_lock(&priv->reg_mutex);
> +
> + /* Load search port */
> + ret = regmap_write(priv->regmap, AN8855_ATWD2,
> + FIELD_PREP(AN8855_ATWD2_PORT, port));
> + if (ret)
> + goto exit;
> + ret = an8855_fdb_cmd(priv, AN8855_ATC_MAT(AND8855_FDB_MAT_MAC_PORT) |
> + AN8855_FDB_START, &rsp);
> + if (ret < 0)
> + goto exit;
> +
> + do {
> + /* From response get the number of banks to read, exit if 0 */
> + banks = FIELD_GET(AN8855_ATC_HIT, rsp);
> + if (!banks)
> + break;
> +
> + /* Each banks have 4 entry */
> + for (i = 0; i < 4; i++) {
> + count++;
> +
> + /* Check if bank is present */
> + if (!(banks & BIT(i)))
> + continue;
> +
> + /* Select bank entry index */
> + ret = regmap_write(priv->regmap, AN8855_ATRDS,
> + FIELD_PREP(AN8855_ATRD_SEL, i));
> + if (ret)
> + break;
> + /* wait 1ms for the bank entry to be filled */
> + usleep_range(1000, 1500);
> + an8855_fdb_read(priv, &_fdb);
> +
> + if (!_fdb.live)
> + continue;
> + ret = cb(_fdb.mac, _fdb.vid, _fdb.noarp, data);
> + if (ret < 0)
> + break;
> + }
> +
> + /* Stop if reached max FDB number */
> + if (count >= AN8855_NUM_FDB_RECORDS)
> + break;
> +
> + /* Read next bank */
> + ret = an8855_fdb_cmd(priv, AN8855_ATC_MAT(AND8855_FDB_MAT_MAC_PORT) |
> + AN8855_FDB_NEXT, &rsp);
> + if (ret < 0)
> + break;
> + } while (true);
> +
> +exit:
> + mutex_unlock(&priv->reg_mutex);
> + return ret;
> +}
...
> + ret = regmap_set_bits(priv->regmap, AN8855_RG_RATE_ADAPT_CTRL_0,
> + AN8855_RG_RATE_ADAPT_RX_BYPASS |
> + AN8855_RG_RATE_ADAPT_TX_BYPASS |
> + AN8855_RG_RATE_ADAPT_RX_EN |
> + AN8855_RG_RATE_ADAPT_TX_EN);
> + if (ret)
> + return ret;
> +
> + /* Disable AN if not in autoneg */
> + ret = regmap_update_bits(priv->regmap, AN8855_SGMII_REG_AN0, BMCR_ANENABLE,
> + neg_mode == PHYLINK_PCS_NEG_INBAND_ENABLED ? BMCR_ANENABLE :
> + 0);
Should 'ret' be tested here?
> +
> + if (interface == PHY_INTERFACE_MODE_SGMII &&
> + neg_mode == PHYLINK_PCS_NEG_INBAND_DISABLED) {
> + ret = regmap_set_bits(priv->regmap, AN8855_PHY_RX_FORCE_CTRL_0,
> + AN8855_RG_FORCE_TXC_SEL);
> + if (ret)
> + return ret;
> + }
...
> + priv->ds = devm_kzalloc(&mdiodev->dev, sizeof(*priv->ds), GFP_KERNEL);
> + if (!priv->ds)
> + return -ENOMEM;
> +
> + priv->ds->dev = &mdiodev->dev;
> + priv->ds->num_ports = AN8855_NUM_PORTS;
> + priv->ds->priv = priv;
> + priv->ds->ops = &an8855_switch_ops;
> + mutex_init(&priv->reg_mutex);
devm_mutex_init() to slightly simplify the remove function?
> + priv->ds->phylink_mac_ops = &an8855_phylink_mac_ops;
> +
> + priv->pcs.ops = &an8855_pcs_ops;
> + priv->pcs.neg_mode = true;
> + priv->pcs.poll = true;
> +
> + ret = an8855_sw_register_nvmem(priv);
> + if (ret)
> + return ret;
> +
> + dev_set_drvdata(&mdiodev->dev, priv);
> +
> + return dsa_register_switch(priv->ds);
> +}
> +
> +static void
> +an8855_sw_remove(struct mdio_device *mdiodev)
> +{
> + struct an8855_priv *priv = dev_get_drvdata(&mdiodev->dev);
> +
> + dsa_unregister_switch(priv->ds);
> + mutex_destroy(&priv->reg_mutex);
> +}
> +
> +static const struct of_device_id an8855_of_match[] = {
> + { .compatible = "airoha,an8855" },
> + { /* sentinel */ },
Ending comma is usually not needed after a terminator.
> +};
> +
> +static struct mdio_driver an8855_mdio_driver = {
> + .probe = an8855_sw_probe,
> + .remove = an8855_sw_remove,
> + .mdiodrv.driver = {
> + .name = "an8855",
> + .of_match_table = an8855_of_match,
> + },
> +};
...
> +#define AN8855_VA0_VTAG_EN BIT(10) /* Per VLAN Egress Tag Control */
> +#define AN8855_VA0_IVL_MAC BIT(5) /* Independent VLAN Learning */
> +#define AN8855_VA0_VLAN_VALID BIT(0) /* VLAN Entry Valid */
> +#define AN8855_VAWD1 0x10200608
> +#define AN8855_VA1_PORT_STAG BIT(1)
> +
> +/* Same register map of VAWD0 */
Not sure to follow. AN8855_VAWD0 above is 0x10200604, not 0x10200618
> +#define AN8855_VARD0 0x10200618
> +
> +enum an8855_vlan_egress_attr {
> + AN8855_VLAN_EGRESS_UNTAG = 0,
> + AN8855_VLAN_EGRESS_TAG = 2,
> + AN8855_VLAN_EGRESS_STACK = 3,
> +};
> +
> +/* Register for port STP state control */
> +#define AN8855_SSP_P(x) (0x10208000 + ((x) * 0x200))
> +#define AN8855_FID_PST GENMASK(1, 0)
> +
> +enum an8855_stp_state {
> + AN8855_STP_DISABLED = 0,
> + AN8855_STP_BLOCKING = 1,
> + AN8855_STP_LISTENING = 1,
Just wondering if this 0, 1, *1*, 2, 3 was intentional?
> + AN8855_STP_LEARNING = 2,
> + AN8855_STP_FORWARDING = 3
> +};
> +
> +/* Register for port control */
> +#define AN8855_PCR_P(x) (0x10208004 + ((x) * 0x200))
> +#define AN8855_EG_TAG GENMASK(29, 28)
> +#define AN8855_PORT_PRI GENMASK(26, 24)
> +#define AN8855_PORT_TX_MIR BIT(20)
> +#define AN8855_PORT_RX_MIR BIT(16)
> +#define AN8855_PORT_VLAN GENMASK(1, 0)
> +
> +enum an8855_port_mode {
> + /* Port Matrix Mode: Frames are forwarded by the PCR_MATRIX members. */
> + AN8855_PORT_MATRIX_MODE = 0,
> +
> + /* Fallback Mode: Forward received frames with ingress ports that do
> + * not belong to the VLAN member. Frames whose VID is not listed on
> + * the VLAN table are forwarded by the PCR_MATRIX members.
> + */
> + AN8855_PORT_FALLBACK_MODE = 1,
> +
> + /* Check Mode: Forward received frames whose ingress do not
> + * belong to the VLAN member. Discard frames if VID ismiddes on the
> + * VLAN table.
> + */
> + AN8855_PORT_CHECK_MODE = 1,
Just wondering if this 0, 1, *1*, 3 was intentional?
> +
> + /* Security Mode: Discard any frame due to ingress membership
> + * violation or VID missed on the VLAN table.
> + */
> + AN8855_PORT_SECURITY_MODE = 3,
> +};
...
CJ
On Thu, Nov 07, 2024 at 06:53:53PM +0100, Christophe JAILLET wrote:
> Le 06/11/2024 à 13:22, Christian Marangi a écrit :
> > Add Airoha AN8855 5-Port Gigabit DSA switch.
> >
> > The switch is also a nvmem-provider as it does have EFUSE to calibrate
> > the internal PHYs.
> >
> > Signed-off-by: Christian Marangi <ansuelsmth-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> > ---
>
> Hi,
>
> ...
>
> > +#include <linux/bitfield.h>
> > +#include <linux/ethtool.h>
> > +#include <linux/etherdevice.h>
> > +#include <linux/gpio/consumer.h>
> > +#include <linux/if_bridge.h>
> > +#include <linux/iopoll.h>
> > +#include <linux/mdio.h>
> > +#include <linux/netdevice.h>
> > +#include <linux/of_mdio.h>
> > +#include <linux/of_net.h>
> > +#include <linux/of_platform.h>
> > +#include <linux/nvmem-provider.h>
>
> Could be moved a few lines above to keep order.
>
> > +#include <linux/phylink.h>
> > +#include <linux/regmap.h>
> > +#include <net/dsa.h>
> ...
>
> > +static int an8855_port_fdb_dump(struct dsa_switch *ds, int port,
> > + dsa_fdb_dump_cb_t *cb, void *data)
> > +{
> > + struct an8855_priv *priv = ds->priv;
> > + struct an8855_fdb _fdb = { };
>
> Should it but reseted in the do loop below, instead of only once here?
>
Common practice is to fill EVERY value in _fdb to not have to reset, but
yes just as extra caution, I will move the define in the for loop.
> > + int banks, count = 0;
> > + u32 rsp;
> > + int ret;
> > + int i;
> > +
> > + mutex_lock(&priv->reg_mutex);
> > +
> > + /* Load search port */
> > + ret = regmap_write(priv->regmap, AN8855_ATWD2,
> > + FIELD_PREP(AN8855_ATWD2_PORT, port));
> > + if (ret)
> > + goto exit;
> > + ret = an8855_fdb_cmd(priv, AN8855_ATC_MAT(AND8855_FDB_MAT_MAC_PORT) |
> > + AN8855_FDB_START, &rsp);
> > + if (ret < 0)
> > + goto exit;
> > +
> > + do {
> > + /* From response get the number of banks to read, exit if 0 */
> > + banks = FIELD_GET(AN8855_ATC_HIT, rsp);
> > + if (!banks)
> > + break;
> > +
> > + /* Each banks have 4 entry */
> > + for (i = 0; i < 4; i++) {
> > + count++;
> > +
> > + /* Check if bank is present */
> > + if (!(banks & BIT(i)))
> > + continue;
> > +
> > + /* Select bank entry index */
> > + ret = regmap_write(priv->regmap, AN8855_ATRDS,
> > + FIELD_PREP(AN8855_ATRD_SEL, i));
> > + if (ret)
> > + break;
> > + /* wait 1ms for the bank entry to be filled */
> > + usleep_range(1000, 1500);
> > + an8855_fdb_read(priv, &_fdb);
> > +
> > + if (!_fdb.live)
> > + continue;
> > + ret = cb(_fdb.mac, _fdb.vid, _fdb.noarp, data);
> > + if (ret < 0)
> > + break;
> > + }
> > +
> > + /* Stop if reached max FDB number */
> > + if (count >= AN8855_NUM_FDB_RECORDS)
> > + break;
> > +
> > + /* Read next bank */
> > + ret = an8855_fdb_cmd(priv, AN8855_ATC_MAT(AND8855_FDB_MAT_MAC_PORT) |
> > + AN8855_FDB_NEXT, &rsp);
> > + if (ret < 0)
> > + break;
> > + } while (true);
> > +
> > +exit:
> > + mutex_unlock(&priv->reg_mutex);
> > + return ret;
> > +}
>
> ...
>
> > + ret = regmap_set_bits(priv->regmap, AN8855_RG_RATE_ADAPT_CTRL_0,
> > + AN8855_RG_RATE_ADAPT_RX_BYPASS |
> > + AN8855_RG_RATE_ADAPT_TX_BYPASS |
> > + AN8855_RG_RATE_ADAPT_RX_EN |
> > + AN8855_RG_RATE_ADAPT_TX_EN);
> > + if (ret)
> > + return ret;
> > +
> > + /* Disable AN if not in autoneg */
> > + ret = regmap_update_bits(priv->regmap, AN8855_SGMII_REG_AN0, BMCR_ANENABLE,
> > + neg_mode == PHYLINK_PCS_NEG_INBAND_ENABLED ? BMCR_ANENABLE :
> > + 0);
>
> Should 'ret' be tested here?
>
Sorry forgot to add.
> > +
> > + if (interface == PHY_INTERFACE_MODE_SGMII &&
> > + neg_mode == PHYLINK_PCS_NEG_INBAND_DISABLED) {
> > + ret = regmap_set_bits(priv->regmap, AN8855_PHY_RX_FORCE_CTRL_0,
> > + AN8855_RG_FORCE_TXC_SEL);
> > + if (ret)
> > + return ret;
> > + }
>
> ...
>
> > + priv->ds = devm_kzalloc(&mdiodev->dev, sizeof(*priv->ds), GFP_KERNEL);
> > + if (!priv->ds)
> > + return -ENOMEM;
> > +
> > + priv->ds->dev = &mdiodev->dev;
> > + priv->ds->num_ports = AN8855_NUM_PORTS;
> > + priv->ds->priv = priv;
> > + priv->ds->ops = &an8855_switch_ops;
> > + mutex_init(&priv->reg_mutex);
>
> devm_mutex_init() to slightly simplify the remove function?
>
Wonder if there is a variant also for dsa_unregister_switch. That
would effectively remove the need for a remove function.
> > + priv->ds->phylink_mac_ops = &an8855_phylink_mac_ops;
> > +
> > + priv->pcs.ops = &an8855_pcs_ops;
> > + priv->pcs.neg_mode = true;
> > + priv->pcs.poll = true;
> > +
> > + ret = an8855_sw_register_nvmem(priv);
> > + if (ret)
> > + return ret;
> > +
> > + dev_set_drvdata(&mdiodev->dev, priv);
> > +
> > + return dsa_register_switch(priv->ds);
> > +}
> > +
> > +static void
> > +an8855_sw_remove(struct mdio_device *mdiodev)
> > +{
> > + struct an8855_priv *priv = dev_get_drvdata(&mdiodev->dev);
> > +
> > + dsa_unregister_switch(priv->ds);
> > + mutex_destroy(&priv->reg_mutex);
> > +}
> > +
> > +static const struct of_device_id an8855_of_match[] = {
> > + { .compatible = "airoha,an8855" },
> > + { /* sentinel */ },
>
> Ending comma is usually not needed after a terminator.
>
> > +};
> > +
> > +static struct mdio_driver an8855_mdio_driver = {
> > + .probe = an8855_sw_probe,
> > + .remove = an8855_sw_remove,
> > + .mdiodrv.driver = {
> > + .name = "an8855",
> > + .of_match_table = an8855_of_match,
> > + },
> > +};
>
> ...
>
> > +#define AN8855_VA0_VTAG_EN BIT(10) /* Per VLAN Egress Tag Control */
> > +#define AN8855_VA0_IVL_MAC BIT(5) /* Independent VLAN Learning */
> > +#define AN8855_VA0_VLAN_VALID BIT(0) /* VLAN Entry Valid */
> > +#define AN8855_VAWD1 0x10200608
> > +#define AN8855_VA1_PORT_STAG BIT(1)
> > +
> > +/* Same register map of VAWD0 */
>
> Not sure to follow. AN8855_VAWD0 above is 0x10200604, not 0x10200618
>
Confusing comment. The meaning here is not "same register" but same
register fields aka bits and mask for the register are the same of
..604.
> > +#define AN8855_VARD0 0x10200618
> > +
> > +enum an8855_vlan_egress_attr {
> > + AN8855_VLAN_EGRESS_UNTAG = 0,
> > + AN8855_VLAN_EGRESS_TAG = 2,
> > + AN8855_VLAN_EGRESS_STACK = 3,
> > +};
> > +
> > +/* Register for port STP state control */
> > +#define AN8855_SSP_P(x) (0x10208000 + ((x) * 0x200))
> > +#define AN8855_FID_PST GENMASK(1, 0)
> > +
> > +enum an8855_stp_state {
> > + AN8855_STP_DISABLED = 0,
> > + AN8855_STP_BLOCKING = 1,
> > + AN8855_STP_LISTENING = 1,
>
> Just wondering if this 0, 1, *1*, 2, 3 was intentional?
>
Yes blocking and listening is the same, I will follow suggestion by
Andrew and make blocking = listening.
> > + AN8855_STP_LEARNING = 2,
> > + AN8855_STP_FORWARDING = 3
> > +};
> > +
> > +/* Register for port control */
> > +#define AN8855_PCR_P(x) (0x10208004 + ((x) * 0x200))
> > +#define AN8855_EG_TAG GENMASK(29, 28)
> > +#define AN8855_PORT_PRI GENMASK(26, 24)
> > +#define AN8855_PORT_TX_MIR BIT(20)
> > +#define AN8855_PORT_RX_MIR BIT(16)
> > +#define AN8855_PORT_VLAN GENMASK(1, 0)
> > +
> > +enum an8855_port_mode {
> > + /* Port Matrix Mode: Frames are forwarded by the PCR_MATRIX members. */
> > + AN8855_PORT_MATRIX_MODE = 0,
> > +
> > + /* Fallback Mode: Forward received frames with ingress ports that do
> > + * not belong to the VLAN member. Frames whose VID is not listed on
> > + * the VLAN table are forwarded by the PCR_MATRIX members.
> > + */
> > + AN8855_PORT_FALLBACK_MODE = 1,
> > +
> > + /* Check Mode: Forward received frames whose ingress do not
> > + * belong to the VLAN member. Discard frames if VID ismiddes on the
> > + * VLAN table.
> > + */
> > + AN8855_PORT_CHECK_MODE = 1,
>
> Just wondering if this 0, 1, *1*, 3 was intentional?
>
Nope a typo. Thanks for noticing this.
> > +
> > + /* Security Mode: Discard any frame due to ingress membership
> > + * violation or VID missed on the VLAN table.
> > + */
> > + AN8855_PORT_SECURITY_MODE = 3,
> > +};
> ...
>
> CJ
--
Ansuel
> > +enum an8855_stp_state {
> > + AN8855_STP_DISABLED = 0,
> > + AN8855_STP_BLOCKING = 1,
> > + AN8855_STP_LISTENING = 1,
>
> Just wondering if this 0, 1, *1*, 2, 3 was intentional?
There are some devices which don't differentiate between blocking and
listening. If this is true, then maybe:
+enum an8855_stp_state {
+ AN8855_STP_DISABLED = 0,
+ AN8855_STP_BLOCKING = 1,
+ AN8855_STP_LISTENING = AN8855_STP_BLOCKING,
Which saves a comment.
Andrew
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