1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | * Broadcom Starfighter2 private context |
4 | * |
5 | * Copyright (C) 2014, Broadcom Corporation |
6 | */ |
7 | |
8 | #ifndef __BCM_SF2_H |
9 | #define __BCM_SF2_H |
10 | |
11 | #include <linux/platform_device.h> |
12 | #include <linux/kernel.h> |
13 | #include <linux/io.h> |
14 | #include <linux/spinlock.h> |
15 | #include <linux/mutex.h> |
16 | #include <linux/mii.h> |
17 | #include <linux/ethtool.h> |
18 | #include <linux/types.h> |
19 | #include <linux/bitops.h> |
20 | #include <linux/if_vlan.h> |
21 | #include <linux/reset.h> |
22 | |
23 | #include <net/dsa.h> |
24 | |
25 | #include "bcm_sf2_regs.h" |
26 | #include "b53/b53_priv.h" |
27 | |
28 | struct bcm_sf2_hw_params { |
29 | u16 top_rev; |
30 | u16 core_rev; |
31 | u16 gphy_rev; |
32 | u32 num_gphy; |
33 | u8 num_acb_queue; |
34 | u8 num_rgmii; |
35 | u8 num_ports; |
36 | u8 fcb_pause_override:1; |
37 | u8 acb_packets_inflight:1; |
38 | }; |
39 | |
40 | #define BCM_SF2_REGS_NAME {\ |
41 | "core", "reg", "intrl2_0", "intrl2_1", "fcb", "acb" \ |
42 | } |
43 | |
44 | #define BCM_SF2_REGS_NUM 6 |
45 | |
46 | struct bcm_sf2_port_status { |
47 | phy_interface_t mode; |
48 | unsigned int link; |
49 | bool enabled; |
50 | }; |
51 | |
52 | struct bcm_sf2_cfp_priv { |
53 | /* Mutex protecting concurrent accesses to the CFP registers */ |
54 | struct mutex lock; |
55 | DECLARE_BITMAP(used, CFP_NUM_RULES); |
56 | DECLARE_BITMAP(unique, CFP_NUM_RULES); |
57 | unsigned int rules_cnt; |
58 | struct list_head rules_list; |
59 | }; |
60 | |
61 | struct bcm_sf2_priv { |
62 | /* Base registers, keep those in order with BCM_SF2_REGS_NAME */ |
63 | void __iomem *core; |
64 | void __iomem *reg; |
65 | void __iomem *intrl2_0; |
66 | void __iomem *intrl2_1; |
67 | void __iomem *fcb; |
68 | void __iomem *acb; |
69 | |
70 | struct reset_control *rcdev; |
71 | |
72 | /* Register offsets indirection tables */ |
73 | u32 type; |
74 | const u16 *reg_offsets; |
75 | unsigned int core_reg_align; |
76 | unsigned int num_cfp_rules; |
77 | unsigned int num_crossbar_int_ports; |
78 | |
79 | /* spinlock protecting access to the indirect registers */ |
80 | spinlock_t indir_lock; |
81 | |
82 | int irq0; |
83 | int irq1; |
84 | u32 irq0_stat; |
85 | u32 irq0_mask; |
86 | u32 irq1_stat; |
87 | u32 irq1_mask; |
88 | |
89 | /* Backing b53_device */ |
90 | struct b53_device *dev; |
91 | |
92 | struct bcm_sf2_hw_params hw_params; |
93 | |
94 | struct bcm_sf2_port_status port_sts[DSA_MAX_PORTS]; |
95 | |
96 | /* Mask of ports enabled for Wake-on-LAN */ |
97 | u32 wol_ports_mask; |
98 | |
99 | struct clk *clk; |
100 | struct clk *clk_mdiv; |
101 | |
102 | /* MoCA port location */ |
103 | int moca_port; |
104 | |
105 | /* Bitmask of ports having an integrated PHY */ |
106 | unsigned int int_phy_mask; |
107 | |
108 | /* Master and slave MDIO bus controller */ |
109 | unsigned int indir_phy_mask; |
110 | struct mii_bus *user_mii_bus; |
111 | struct mii_bus *master_mii_bus; |
112 | |
113 | /* Bitmask of ports needing BRCM tags */ |
114 | unsigned int brcm_tag_mask; |
115 | |
116 | /* CFP rules context */ |
117 | struct bcm_sf2_cfp_priv cfp; |
118 | }; |
119 | |
120 | static inline struct bcm_sf2_priv *bcm_sf2_to_priv(struct dsa_switch *ds) |
121 | { |
122 | struct b53_device *dev = ds->priv; |
123 | |
124 | return dev->priv; |
125 | } |
126 | |
127 | static inline u32 bcm_sf2_mangle_addr(struct bcm_sf2_priv *priv, u32 off) |
128 | { |
129 | return off << priv->core_reg_align; |
130 | } |
131 | |
132 | #define SF2_IO_MACRO(name) \ |
133 | static inline u32 name##_readl(struct bcm_sf2_priv *priv, u32 off) \ |
134 | { \ |
135 | return readl_relaxed(priv->name + off); \ |
136 | } \ |
137 | static inline void name##_writel(struct bcm_sf2_priv *priv, \ |
138 | u32 val, u32 off) \ |
139 | { \ |
140 | writel_relaxed(val, priv->name + off); \ |
141 | } \ |
142 | |
143 | /* Accesses to 64-bits register requires us to latch the hi/lo pairs |
144 | * using the REG_DIR_DATA_{READ,WRITE} ancillary registers. The 'indir_lock' |
145 | * spinlock is automatically grabbed and released to provide relative |
146 | * atomiticy with latched reads/writes. |
147 | */ |
148 | #define SF2_IO64_MACRO(name) \ |
149 | static inline u64 name##_readq(struct bcm_sf2_priv *priv, u32 off) \ |
150 | { \ |
151 | u32 indir, dir; \ |
152 | spin_lock(&priv->indir_lock); \ |
153 | dir = name##_readl(priv, off); \ |
154 | indir = reg_readl(priv, REG_DIR_DATA_READ); \ |
155 | spin_unlock(&priv->indir_lock); \ |
156 | return (u64)indir << 32 | dir; \ |
157 | } \ |
158 | static inline void name##_writeq(struct bcm_sf2_priv *priv, u64 val, \ |
159 | u32 off) \ |
160 | { \ |
161 | spin_lock(&priv->indir_lock); \ |
162 | reg_writel(priv, upper_32_bits(val), REG_DIR_DATA_WRITE); \ |
163 | name##_writel(priv, lower_32_bits(val), off); \ |
164 | spin_unlock(&priv->indir_lock); \ |
165 | } |
166 | |
167 | #define SWITCH_INTR_L2(which) \ |
168 | static inline void intrl2_##which##_mask_clear(struct bcm_sf2_priv *priv, \ |
169 | u32 mask) \ |
170 | { \ |
171 | priv->irq##which##_mask &= ~(mask); \ |
172 | intrl2_##which##_writel(priv, mask, INTRL2_CPU_MASK_CLEAR); \ |
173 | } \ |
174 | static inline void intrl2_##which##_mask_set(struct bcm_sf2_priv *priv, \ |
175 | u32 mask) \ |
176 | { \ |
177 | intrl2_## which##_writel(priv, mask, INTRL2_CPU_MASK_SET); \ |
178 | priv->irq##which##_mask |= (mask); \ |
179 | } \ |
180 | |
181 | static inline u32 core_readl(struct bcm_sf2_priv *priv, u32 off) |
182 | { |
183 | u32 tmp = bcm_sf2_mangle_addr(priv, off); |
184 | return readl_relaxed(priv->core + tmp); |
185 | } |
186 | |
187 | static inline void core_writel(struct bcm_sf2_priv *priv, u32 val, u32 off) |
188 | { |
189 | u32 tmp = bcm_sf2_mangle_addr(priv, off); |
190 | writel_relaxed(val, priv->core + tmp); |
191 | } |
192 | |
193 | static inline u32 reg_readl(struct bcm_sf2_priv *priv, u16 off) |
194 | { |
195 | return readl_relaxed(priv->reg + priv->reg_offsets[off]); |
196 | } |
197 | |
198 | static inline void reg_writel(struct bcm_sf2_priv *priv, u32 val, u16 off) |
199 | { |
200 | writel_relaxed(val, priv->reg + priv->reg_offsets[off]); |
201 | } |
202 | |
203 | SF2_IO64_MACRO(core); |
204 | SF2_IO_MACRO(intrl2_0); |
205 | SF2_IO_MACRO(intrl2_1); |
206 | SF2_IO_MACRO(fcb); |
207 | SF2_IO_MACRO(acb); |
208 | |
209 | SWITCH_INTR_L2(0); |
210 | SWITCH_INTR_L2(1); |
211 | |
212 | static inline u32 reg_led_readl(struct bcm_sf2_priv *priv, u16 off, u16 reg) |
213 | { |
214 | return readl_relaxed(priv->reg + priv->reg_offsets[off] + reg); |
215 | } |
216 | |
217 | static inline void reg_led_writel(struct bcm_sf2_priv *priv, u32 val, u16 off, u16 reg) |
218 | { |
219 | writel_relaxed(val, priv->reg + priv->reg_offsets[off] + reg); |
220 | } |
221 | |
222 | /* RXNFC */ |
223 | int bcm_sf2_get_rxnfc(struct dsa_switch *ds, int port, |
224 | struct ethtool_rxnfc *nfc, u32 *rule_locs); |
225 | int bcm_sf2_set_rxnfc(struct dsa_switch *ds, int port, |
226 | struct ethtool_rxnfc *nfc); |
227 | int bcm_sf2_cfp_rst(struct bcm_sf2_priv *priv); |
228 | void bcm_sf2_cfp_exit(struct dsa_switch *ds); |
229 | int bcm_sf2_cfp_resume(struct dsa_switch *ds); |
230 | void bcm_sf2_cfp_get_strings(struct dsa_switch *ds, int port, |
231 | u32 stringset, uint8_t *data); |
232 | void bcm_sf2_cfp_get_ethtool_stats(struct dsa_switch *ds, int port, |
233 | uint64_t *data); |
234 | int bcm_sf2_cfp_get_sset_count(struct dsa_switch *ds, int port, int sset); |
235 | |
236 | #endif /* __BCM_SF2_H */ |
237 | |