2 * Broadcom Starfighter2 private context
4 * Copyright (C) 2014, Broadcom Corporation
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
15 #include <linux/platform_device.h>
16 #include <linux/kernel.h>
18 #include <linux/spinlock.h>
19 #include <linux/mutex.h>
20 #include <linux/mii.h>
21 #include <linux/ethtool.h>
25 #include "bcm_sf2_regs.h"
27 struct bcm_sf2_hw_params {
35 u8 fcb_pause_override:1;
36 u8 acb_packets_inflight:1;
39 #define BCM_SF2_REGS_NAME {\
40 "core", "reg", "intrl2_0", "intrl2_1", "fcb", "acb" \
43 #define BCM_SF2_REGS_NUM 6
45 struct bcm_sf2_port_status {
48 struct ethtool_eee eee;
52 /* Base registers, keep those in order with BCM_SF2_REGS_NAME */
55 void __iomem *intrl2_0;
56 void __iomem *intrl2_1;
60 /* spinlock protecting access to the indirect registers */
61 spinlock_t indir_lock;
70 /* Mutex protecting access to the MIB counters */
71 struct mutex stats_mutex;
73 struct bcm_sf2_hw_params hw_params;
75 struct bcm_sf2_port_status port_sts[DSA_MAX_PORTS];
77 /* Mask of ports enabled for Wake-on-LAN */
81 struct bcm_sf2_hw_stats {
87 #define SF2_IO_MACRO(name) \
88 static inline u32 name##_readl(struct bcm_sf2_priv *priv, u32 off) \
90 return __raw_readl(priv->name + off); \
92 static inline void name##_writel(struct bcm_sf2_priv *priv, \
95 __raw_writel(val, priv->name + off); \
98 /* Accesses to 64-bits register requires us to latch the hi/lo pairs
99 * using the REG_DIR_DATA_{READ,WRITE} ancillary registers. The 'indir_lock'
100 * spinlock is automatically grabbed and released to provide relative
101 * atomiticy with latched reads/writes.
103 #define SF2_IO64_MACRO(name) \
104 static inline u64 name##_readq(struct bcm_sf2_priv *priv, u32 off) \
107 spin_lock(&priv->indir_lock); \
108 indir = reg_readl(priv, REG_DIR_DATA_READ); \
109 dir = __raw_readl(priv->name + off); \
110 spin_unlock(&priv->indir_lock); \
111 return (u64)indir << 32 | dir; \
113 static inline void name##_writeq(struct bcm_sf2_priv *priv, u32 off, \
116 spin_lock(&priv->indir_lock); \
117 reg_writel(priv, upper_32_bits(val), REG_DIR_DATA_WRITE); \
118 __raw_writel(lower_32_bits(val), priv->name + off); \
119 spin_unlock(&priv->indir_lock); \
122 #define SWITCH_INTR_L2(which) \
123 static inline void intrl2_##which##_mask_clear(struct bcm_sf2_priv *priv, \
126 intrl2_##which##_writel(priv, mask, INTRL2_CPU_MASK_CLEAR); \
127 priv->irq##which##_mask &= ~(mask); \
129 static inline void intrl2_##which##_mask_set(struct bcm_sf2_priv *priv, \
132 intrl2_## which##_writel(priv, mask, INTRL2_CPU_MASK_SET); \
133 priv->irq##which##_mask |= (mask); \
138 SF2_IO64_MACRO(core);
139 SF2_IO_MACRO(intrl2_0);
140 SF2_IO_MACRO(intrl2_1);
147 #endif /* __BCM_SF2_H */