1 /* SPDX-License-Identifier: GPL-2.0
2 * Microchip switch driver common header
4 * Copyright (C) 2017-2019 Microchip Technology Inc.
10 #include <linux/regmap.h>
12 void ksz_port_cleanup(struct ksz_device *dev, int port);
13 void ksz_update_port_member(struct ksz_device *dev, int port);
14 void ksz_init_mib_timer(struct ksz_device *dev);
16 /* Common DSA access functions */
18 int ksz_phy_read16(struct dsa_switch *ds, int addr, int reg);
19 int ksz_phy_write16(struct dsa_switch *ds, int addr, int reg, u16 val);
20 void ksz_adjust_link(struct dsa_switch *ds, int port,
21 struct phy_device *phydev);
22 int ksz_sset_count(struct dsa_switch *ds, int port, int sset);
23 void ksz_get_ethtool_stats(struct dsa_switch *ds, int port, uint64_t *buf);
24 int ksz_port_bridge_join(struct dsa_switch *ds, int port,
25 struct net_device *br);
26 void ksz_port_bridge_leave(struct dsa_switch *ds, int port,
27 struct net_device *br);
28 void ksz_port_fast_age(struct dsa_switch *ds, int port);
29 int ksz_port_vlan_prepare(struct dsa_switch *ds, int port,
30 const struct switchdev_obj_port_vlan *vlan);
31 int ksz_port_fdb_dump(struct dsa_switch *ds, int port, dsa_fdb_dump_cb_t *cb,
33 int ksz_port_mdb_prepare(struct dsa_switch *ds, int port,
34 const struct switchdev_obj_port_mdb *mdb);
35 void ksz_port_mdb_add(struct dsa_switch *ds, int port,
36 const struct switchdev_obj_port_mdb *mdb);
37 int ksz_port_mdb_del(struct dsa_switch *ds, int port,
38 const struct switchdev_obj_port_mdb *mdb);
39 int ksz_enable_port(struct dsa_switch *ds, int port, struct phy_device *phy);
40 void ksz_disable_port(struct dsa_switch *ds, int port);
42 /* Common register access functions */
44 static inline int ksz_read8(struct ksz_device *dev, u32 reg, u8 *val)
47 int ret = regmap_read(dev->regmap[0], reg, &value);
53 static inline int ksz_read16(struct ksz_device *dev, u32 reg, u16 *val)
56 int ret = regmap_read(dev->regmap[1], reg, &value);
62 static inline int ksz_read32(struct ksz_device *dev, u32 reg, u32 *val)
65 int ret = regmap_read(dev->regmap[2], reg, &value);
71 static inline int ksz_write8(struct ksz_device *dev, u32 reg, u8 value)
73 return regmap_write(dev->regmap[0], reg, value);
76 static inline int ksz_write16(struct ksz_device *dev, u32 reg, u16 value)
78 return regmap_write(dev->regmap[1], reg, value);
81 static inline int ksz_write32(struct ksz_device *dev, u32 reg, u32 value)
83 return regmap_write(dev->regmap[2], reg, value);
86 static inline void ksz_pread8(struct ksz_device *dev, int port, int offset,
89 ksz_read8(dev, dev->dev_ops->get_port_addr(port, offset), data);
92 static inline void ksz_pread16(struct ksz_device *dev, int port, int offset,
95 ksz_read16(dev, dev->dev_ops->get_port_addr(port, offset), data);
98 static inline void ksz_pread32(struct ksz_device *dev, int port, int offset,
101 ksz_read32(dev, dev->dev_ops->get_port_addr(port, offset), data);
104 static inline void ksz_pwrite8(struct ksz_device *dev, int port, int offset,
107 ksz_write8(dev, dev->dev_ops->get_port_addr(port, offset), data);
110 static inline void ksz_pwrite16(struct ksz_device *dev, int port, int offset,
113 ksz_write16(dev, dev->dev_ops->get_port_addr(port, offset), data);
116 static inline void ksz_pwrite32(struct ksz_device *dev, int port, int offset,
119 ksz_write32(dev, dev->dev_ops->get_port_addr(port, offset), data);
122 /* Regmap tables generation */
123 #define KSZ_SPI_OP_RD 3
124 #define KSZ_SPI_OP_WR 2
126 #define KSZ_SPI_OP_FLAG_MASK(opcode, swp, regbits, regpad) \
127 swab##swp((opcode) << ((regbits) + (regpad)))
129 #define KSZ_REGMAP_ENTRY(width, swp, regbits, regpad, regalign) \
131 .val_bits = (width), \
132 .reg_stride = (width) / 8, \
133 .reg_bits = (regbits) + (regalign), \
134 .pad_bits = (regpad), \
135 .max_register = BIT(regbits) - 1, \
136 .cache_type = REGCACHE_NONE, \
138 KSZ_SPI_OP_FLAG_MASK(KSZ_SPI_OP_RD, swp, \
141 KSZ_SPI_OP_FLAG_MASK(KSZ_SPI_OP_WR, swp, \
143 .reg_format_endian = REGMAP_ENDIAN_BIG, \
144 .val_format_endian = REGMAP_ENDIAN_BIG \
147 #define KSZ_REGMAP_TABLE(ksz, swp, regbits, regpad, regalign) \
148 static const struct regmap_config ksz##_regmap_config[] = { \
149 KSZ_REGMAP_ENTRY(8, swp, (regbits), (regpad), (regalign)), \
150 KSZ_REGMAP_ENTRY(16, swp, (regbits), (regpad), (regalign)), \
151 KSZ_REGMAP_ENTRY(32, swp, (regbits), (regpad), (regalign)), \