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329 lines
8.9 KiB
329 lines
8.9 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* Microchip switch driver common header |
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* |
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* Copyright (C) 2017-2019 Microchip Technology Inc. |
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*/ |
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#ifndef __KSZ_COMMON_H |
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#define __KSZ_COMMON_H |
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#include <linux/etherdevice.h> |
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#include <linux/kernel.h> |
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#include <linux/mutex.h> |
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#include <linux/phy.h> |
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#include <linux/regmap.h> |
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#include <net/dsa.h> |
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struct vlan_table { |
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u32 table[3]; |
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}; |
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struct ksz_port_mib { |
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struct mutex cnt_mutex; /* structure access */ |
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u8 cnt_ptr; |
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u64 *counters; |
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}; |
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struct ksz_port { |
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u16 member; |
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u16 vid_member; |
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int stp_state; |
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struct phy_device phydev; |
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u32 on:1; /* port is not disabled by hardware */ |
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u32 phy:1; /* port has a PHY */ |
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u32 fiber:1; /* port is fiber */ |
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u32 sgmii:1; /* port is SGMII */ |
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u32 force:1; |
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u32 read:1; /* read MIB counters in background */ |
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u32 freeze:1; /* MIB counter freeze is enabled */ |
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struct ksz_port_mib mib; |
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phy_interface_t interface; |
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}; |
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struct ksz_device { |
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struct dsa_switch *ds; |
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struct ksz_platform_data *pdata; |
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const char *name; |
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struct mutex dev_mutex; /* device access */ |
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struct mutex regmap_mutex; /* regmap access */ |
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struct mutex alu_mutex; /* ALU access */ |
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struct mutex vlan_mutex; /* vlan access */ |
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const struct ksz_dev_ops *dev_ops; |
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struct device *dev; |
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struct regmap *regmap[3]; |
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void *priv; |
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struct gpio_desc *reset_gpio; /* Optional reset GPIO */ |
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/* chip specific data */ |
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u32 chip_id; |
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int num_vlans; |
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int num_alus; |
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int num_statics; |
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int cpu_port; /* port connected to CPU */ |
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int cpu_ports; /* port bitmap can be cpu port */ |
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int phy_port_cnt; |
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int port_cnt; |
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int reg_mib_cnt; |
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int mib_cnt; |
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phy_interface_t compat_interface; |
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u32 regs_size; |
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bool phy_errata_9477; |
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bool synclko_125; |
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struct vlan_table *vlan_cache; |
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struct ksz_port *ports; |
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struct delayed_work mib_read; |
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unsigned long mib_read_interval; |
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u16 br_member; |
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u16 member; |
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u16 mirror_rx; |
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u16 mirror_tx; |
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u32 features; /* chip specific features */ |
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u32 overrides; /* chip functions set by user */ |
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u16 host_mask; |
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u16 port_mask; |
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}; |
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struct alu_struct { |
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/* entry 1 */ |
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u8 is_static:1; |
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u8 is_src_filter:1; |
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u8 is_dst_filter:1; |
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u8 prio_age:3; |
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u32 _reserv_0_1:23; |
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u8 mstp:3; |
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/* entry 2 */ |
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u8 is_override:1; |
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u8 is_use_fid:1; |
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u32 _reserv_1_1:23; |
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u8 port_forward:7; |
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/* entry 3 & 4*/ |
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u32 _reserv_2_1:9; |
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u8 fid:7; |
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u8 mac[ETH_ALEN]; |
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}; |
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struct ksz_dev_ops { |
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u32 (*get_port_addr)(int port, int offset); |
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void (*cfg_port_member)(struct ksz_device *dev, int port, u8 member); |
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void (*flush_dyn_mac_table)(struct ksz_device *dev, int port); |
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void (*port_cleanup)(struct ksz_device *dev, int port); |
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void (*port_setup)(struct ksz_device *dev, int port, bool cpu_port); |
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void (*r_phy)(struct ksz_device *dev, u16 phy, u16 reg, u16 *val); |
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void (*w_phy)(struct ksz_device *dev, u16 phy, u16 reg, u16 val); |
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int (*r_dyn_mac_table)(struct ksz_device *dev, u16 addr, u8 *mac_addr, |
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u8 *fid, u8 *src_port, u8 *timestamp, |
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u16 *entries); |
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int (*r_sta_mac_table)(struct ksz_device *dev, u16 addr, |
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struct alu_struct *alu); |
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void (*w_sta_mac_table)(struct ksz_device *dev, u16 addr, |
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struct alu_struct *alu); |
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void (*r_mib_cnt)(struct ksz_device *dev, int port, u16 addr, |
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u64 *cnt); |
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void (*r_mib_pkt)(struct ksz_device *dev, int port, u16 addr, |
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u64 *dropped, u64 *cnt); |
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void (*freeze_mib)(struct ksz_device *dev, int port, bool freeze); |
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void (*port_init_cnt)(struct ksz_device *dev, int port); |
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int (*shutdown)(struct ksz_device *dev); |
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int (*detect)(struct ksz_device *dev); |
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int (*init)(struct ksz_device *dev); |
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void (*exit)(struct ksz_device *dev); |
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}; |
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struct ksz_device *ksz_switch_alloc(struct device *base, void *priv); |
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int ksz_switch_register(struct ksz_device *dev, |
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const struct ksz_dev_ops *ops); |
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void ksz_switch_remove(struct ksz_device *dev); |
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int ksz8795_switch_register(struct ksz_device *dev); |
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int ksz9477_switch_register(struct ksz_device *dev); |
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void ksz_update_port_member(struct ksz_device *dev, int port); |
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void ksz_init_mib_timer(struct ksz_device *dev); |
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/* Common DSA access functions */ |
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int ksz_phy_read16(struct dsa_switch *ds, int addr, int reg); |
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int ksz_phy_write16(struct dsa_switch *ds, int addr, int reg, u16 val); |
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void ksz_mac_link_down(struct dsa_switch *ds, int port, unsigned int mode, |
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phy_interface_t interface); |
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int ksz_sset_count(struct dsa_switch *ds, int port, int sset); |
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void ksz_get_ethtool_stats(struct dsa_switch *ds, int port, uint64_t *buf); |
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int ksz_port_bridge_join(struct dsa_switch *ds, int port, |
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struct net_device *br); |
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void ksz_port_bridge_leave(struct dsa_switch *ds, int port, |
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struct net_device *br); |
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void ksz_port_fast_age(struct dsa_switch *ds, int port); |
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int ksz_port_fdb_dump(struct dsa_switch *ds, int port, dsa_fdb_dump_cb_t *cb, |
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void *data); |
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int ksz_port_mdb_add(struct dsa_switch *ds, int port, |
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const struct switchdev_obj_port_mdb *mdb); |
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int ksz_port_mdb_del(struct dsa_switch *ds, int port, |
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const struct switchdev_obj_port_mdb *mdb); |
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int ksz_enable_port(struct dsa_switch *ds, int port, struct phy_device *phy); |
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/* Common register access functions */ |
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static inline int ksz_read8(struct ksz_device *dev, u32 reg, u8 *val) |
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{ |
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unsigned int value; |
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int ret = regmap_read(dev->regmap[0], reg, &value); |
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*val = value; |
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return ret; |
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} |
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static inline int ksz_read16(struct ksz_device *dev, u32 reg, u16 *val) |
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{ |
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unsigned int value; |
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int ret = regmap_read(dev->regmap[1], reg, &value); |
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*val = value; |
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return ret; |
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} |
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static inline int ksz_read32(struct ksz_device *dev, u32 reg, u32 *val) |
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{ |
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unsigned int value; |
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int ret = regmap_read(dev->regmap[2], reg, &value); |
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*val = value; |
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return ret; |
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} |
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static inline int ksz_read64(struct ksz_device *dev, u32 reg, u64 *val) |
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{ |
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u32 value[2]; |
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int ret; |
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ret = regmap_bulk_read(dev->regmap[2], reg, value, 2); |
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if (!ret) { |
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/* Ick! ToDo: Add 64bit R/W to regmap on 32bit systems */ |
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value[0] = swab32(value[0]); |
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value[1] = swab32(value[1]); |
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*val = swab64((u64)*value); |
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} |
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return ret; |
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} |
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static inline int ksz_write8(struct ksz_device *dev, u32 reg, u8 value) |
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{ |
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return regmap_write(dev->regmap[0], reg, value); |
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} |
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static inline int ksz_write16(struct ksz_device *dev, u32 reg, u16 value) |
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{ |
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return regmap_write(dev->regmap[1], reg, value); |
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} |
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static inline int ksz_write32(struct ksz_device *dev, u32 reg, u32 value) |
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{ |
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return regmap_write(dev->regmap[2], reg, value); |
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} |
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static inline int ksz_write64(struct ksz_device *dev, u32 reg, u64 value) |
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{ |
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u32 val[2]; |
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/* Ick! ToDo: Add 64bit R/W to regmap on 32bit systems */ |
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value = swab64(value); |
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val[0] = swab32(value & 0xffffffffULL); |
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val[1] = swab32(value >> 32ULL); |
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return regmap_bulk_write(dev->regmap[2], reg, val, 2); |
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} |
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static inline void ksz_pread8(struct ksz_device *dev, int port, int offset, |
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u8 *data) |
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{ |
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ksz_read8(dev, dev->dev_ops->get_port_addr(port, offset), data); |
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} |
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static inline void ksz_pread16(struct ksz_device *dev, int port, int offset, |
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u16 *data) |
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{ |
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ksz_read16(dev, dev->dev_ops->get_port_addr(port, offset), data); |
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} |
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static inline void ksz_pread32(struct ksz_device *dev, int port, int offset, |
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u32 *data) |
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{ |
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ksz_read32(dev, dev->dev_ops->get_port_addr(port, offset), data); |
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} |
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static inline void ksz_pwrite8(struct ksz_device *dev, int port, int offset, |
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u8 data) |
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{ |
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ksz_write8(dev, dev->dev_ops->get_port_addr(port, offset), data); |
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} |
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static inline void ksz_pwrite16(struct ksz_device *dev, int port, int offset, |
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u16 data) |
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{ |
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ksz_write16(dev, dev->dev_ops->get_port_addr(port, offset), data); |
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} |
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static inline void ksz_pwrite32(struct ksz_device *dev, int port, int offset, |
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u32 data) |
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{ |
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ksz_write32(dev, dev->dev_ops->get_port_addr(port, offset), data); |
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} |
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static inline void ksz_regmap_lock(void *__mtx) |
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{ |
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struct mutex *mtx = __mtx; |
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mutex_lock(mtx); |
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} |
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static inline void ksz_regmap_unlock(void *__mtx) |
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{ |
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struct mutex *mtx = __mtx; |
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mutex_unlock(mtx); |
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} |
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/* Regmap tables generation */ |
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#define KSZ_SPI_OP_RD 3 |
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#define KSZ_SPI_OP_WR 2 |
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#define swabnot_used(x) 0 |
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#define KSZ_SPI_OP_FLAG_MASK(opcode, swp, regbits, regpad) \ |
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swab##swp((opcode) << ((regbits) + (regpad))) |
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#define KSZ_REGMAP_ENTRY(width, swp, regbits, regpad, regalign) \ |
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{ \ |
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.name = #width, \ |
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.val_bits = (width), \ |
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.reg_stride = 1, \ |
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.reg_bits = (regbits) + (regalign), \ |
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.pad_bits = (regpad), \ |
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.max_register = BIT(regbits) - 1, \ |
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.cache_type = REGCACHE_NONE, \ |
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.read_flag_mask = \ |
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KSZ_SPI_OP_FLAG_MASK(KSZ_SPI_OP_RD, swp, \ |
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regbits, regpad), \ |
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.write_flag_mask = \ |
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KSZ_SPI_OP_FLAG_MASK(KSZ_SPI_OP_WR, swp, \ |
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regbits, regpad), \ |
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.lock = ksz_regmap_lock, \ |
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.unlock = ksz_regmap_unlock, \ |
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.reg_format_endian = REGMAP_ENDIAN_BIG, \ |
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.val_format_endian = REGMAP_ENDIAN_BIG \ |
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} |
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#define KSZ_REGMAP_TABLE(ksz, swp, regbits, regpad, regalign) \ |
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static const struct regmap_config ksz##_regmap_config[] = { \ |
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KSZ_REGMAP_ENTRY(8, swp, (regbits), (regpad), (regalign)), \ |
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KSZ_REGMAP_ENTRY(16, swp, (regbits), (regpad), (regalign)), \ |
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KSZ_REGMAP_ENTRY(32, swp, (regbits), (regpad), (regalign)), \ |
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} |
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#endif
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