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1 /*
2  * Copyright (C) 2009 Felix Fietkau <nbd@nbd.name>
3  * Copyright (C) 2011-2012 Gabor Juhos <juhosg@openwrt.org>
4  * Copyright (c) 2015, The Linux Foundation. All rights reserved.
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License version 2 and
8  * only version 2 as published by the Free Software Foundation.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  */
15 
16 #ifndef __QCA8K_H
17 #define __QCA8K_H
18 
19 #include <linux/delay.h>
20 #include <linux/regmap.h>
21 
22 #define QCA8K_NUM_PORTS					7
23 
24 #define PHY_ID_QCA8337					0x004dd036
25 #define QCA8K_ID_QCA8337				0x13
26 
27 #define QCA8K_NUM_FDB_RECORDS				2048
28 
29 #define QCA8K_CPU_PORT					0
30 
31 /* Global control registers */
32 #define QCA8K_REG_MASK_CTRL				0x000
33 #define   QCA8K_MASK_CTRL_ID_M				0xff
34 #define   QCA8K_MASK_CTRL_ID_S				8
35 #define QCA8K_REG_PORT0_PAD_CTRL			0x004
36 #define QCA8K_REG_PORT5_PAD_CTRL			0x008
37 #define QCA8K_REG_PORT6_PAD_CTRL			0x00c
38 #define   QCA8K_PORT_PAD_RGMII_EN			BIT(26)
39 #define   QCA8K_PORT_PAD_RGMII_TX_DELAY(x)		\
40 						((0x8 + (x & 0x3)) << 22)
41 #define   QCA8K_PORT_PAD_RGMII_RX_DELAY(x)		\
42 						((0x10 + (x & 0x3)) << 20)
43 #define   QCA8K_MAX_DELAY				3
44 #define   QCA8K_PORT_PAD_RGMII_RX_DELAY_EN		BIT(24)
45 #define   QCA8K_PORT_PAD_SGMII_EN			BIT(7)
46 #define QCA8K_REG_MODULE_EN				0x030
47 #define   QCA8K_MODULE_EN_MIB				BIT(0)
48 #define QCA8K_REG_MIB					0x034
49 #define   QCA8K_MIB_FLUSH				BIT(24)
50 #define   QCA8K_MIB_CPU_KEEP				BIT(20)
51 #define   QCA8K_MIB_BUSY				BIT(17)
52 #define QCA8K_GOL_MAC_ADDR0				0x60
53 #define QCA8K_GOL_MAC_ADDR1				0x64
54 #define QCA8K_REG_PORT_STATUS(_i)			(0x07c + (_i) * 4)
55 #define   QCA8K_PORT_STATUS_SPEED			GENMASK(1, 0)
56 #define   QCA8K_PORT_STATUS_SPEED_10			0
57 #define   QCA8K_PORT_STATUS_SPEED_100			0x1
58 #define   QCA8K_PORT_STATUS_SPEED_1000			0x2
59 #define   QCA8K_PORT_STATUS_TXMAC			BIT(2)
60 #define   QCA8K_PORT_STATUS_RXMAC			BIT(3)
61 #define   QCA8K_PORT_STATUS_TXFLOW			BIT(4)
62 #define   QCA8K_PORT_STATUS_RXFLOW			BIT(5)
63 #define   QCA8K_PORT_STATUS_DUPLEX			BIT(6)
64 #define   QCA8K_PORT_STATUS_LINK_UP			BIT(8)
65 #define   QCA8K_PORT_STATUS_LINK_AUTO			BIT(9)
66 #define   QCA8K_PORT_STATUS_LINK_PAUSE			BIT(10)
67 #define QCA8K_REG_PORT_HDR_CTRL(_i)			(0x9c + (_i * 4))
68 #define   QCA8K_PORT_HDR_CTRL_RX_MASK			GENMASK(3, 2)
69 #define   QCA8K_PORT_HDR_CTRL_RX_S			2
70 #define   QCA8K_PORT_HDR_CTRL_TX_MASK			GENMASK(1, 0)
71 #define   QCA8K_PORT_HDR_CTRL_TX_S			0
72 #define   QCA8K_PORT_HDR_CTRL_ALL			2
73 #define   QCA8K_PORT_HDR_CTRL_MGMT			1
74 #define   QCA8K_PORT_HDR_CTRL_NONE			0
75 
76 /* EEE control registers */
77 #define QCA8K_REG_EEE_CTRL				0x100
78 #define  QCA8K_REG_EEE_CTRL_LPI_EN(_i)			((_i + 1) * 2)
79 
80 /* ACL registers */
81 #define QCA8K_REG_PORT_VLAN_CTRL0(_i)			(0x420 + (_i * 8))
82 #define   QCA8K_PORT_VLAN_CVID(x)			(x << 16)
83 #define   QCA8K_PORT_VLAN_SVID(x)			x
84 #define QCA8K_REG_PORT_VLAN_CTRL1(_i)			(0x424 + (_i * 8))
85 #define QCA8K_REG_IPV4_PRI_BASE_ADDR			0x470
86 #define QCA8K_REG_IPV4_PRI_ADDR_MASK			0x474
87 
88 /* Lookup registers */
89 #define QCA8K_REG_ATU_DATA0				0x600
90 #define   QCA8K_ATU_ADDR2_S				24
91 #define   QCA8K_ATU_ADDR3_S				16
92 #define   QCA8K_ATU_ADDR4_S				8
93 #define QCA8K_REG_ATU_DATA1				0x604
94 #define   QCA8K_ATU_PORT_M				0x7f
95 #define   QCA8K_ATU_PORT_S				16
96 #define   QCA8K_ATU_ADDR0_S				8
97 #define QCA8K_REG_ATU_DATA2				0x608
98 #define   QCA8K_ATU_VID_M				0xfff
99 #define   QCA8K_ATU_VID_S				8
100 #define   QCA8K_ATU_STATUS_M				0xf
101 #define   QCA8K_ATU_STATUS_STATIC			0xf
102 #define QCA8K_REG_ATU_FUNC				0x60c
103 #define   QCA8K_ATU_FUNC_BUSY				BIT(31)
104 #define   QCA8K_ATU_FUNC_PORT_EN			BIT(14)
105 #define   QCA8K_ATU_FUNC_MULTI_EN			BIT(13)
106 #define   QCA8K_ATU_FUNC_FULL				BIT(12)
107 #define   QCA8K_ATU_FUNC_PORT_M				0xf
108 #define   QCA8K_ATU_FUNC_PORT_S				8
109 #define QCA8K_REG_GLOBAL_FW_CTRL0			0x620
110 #define   QCA8K_GLOBAL_FW_CTRL0_CPU_PORT_EN		BIT(10)
111 #define QCA8K_REG_GLOBAL_FW_CTRL1			0x624
112 #define   QCA8K_GLOBAL_FW_CTRL1_IGMP_DP_S		24
113 #define   QCA8K_GLOBAL_FW_CTRL1_BC_DP_S			16
114 #define   QCA8K_GLOBAL_FW_CTRL1_MC_DP_S			8
115 #define   QCA8K_GLOBAL_FW_CTRL1_UC_DP_S			0
116 #define QCA8K_PORT_LOOKUP_CTRL(_i)			(0x660 + (_i) * 0xc)
117 #define   QCA8K_PORT_LOOKUP_MEMBER			GENMASK(6, 0)
118 #define   QCA8K_PORT_LOOKUP_STATE_MASK			GENMASK(18, 16)
119 #define   QCA8K_PORT_LOOKUP_STATE_DISABLED		(0 << 16)
120 #define   QCA8K_PORT_LOOKUP_STATE_BLOCKING		(1 << 16)
121 #define   QCA8K_PORT_LOOKUP_STATE_LISTENING		(2 << 16)
122 #define   QCA8K_PORT_LOOKUP_STATE_LEARNING		(3 << 16)
123 #define   QCA8K_PORT_LOOKUP_STATE_FORWARD		(4 << 16)
124 #define   QCA8K_PORT_LOOKUP_STATE			GENMASK(18, 16)
125 #define   QCA8K_PORT_LOOKUP_LEARN			BIT(20)
126 
127 /* Pkt edit registers */
128 #define QCA8K_EGRESS_VLAN(x)				(0x0c70 + (4 * (x / 2)))
129 
130 /* L3 registers */
131 #define QCA8K_HROUTER_CONTROL				0xe00
132 #define   QCA8K_HROUTER_CONTROL_GLB_LOCKTIME_M		GENMASK(17, 16)
133 #define   QCA8K_HROUTER_CONTROL_GLB_LOCKTIME_S		16
134 #define   QCA8K_HROUTER_CONTROL_ARP_AGE_MODE		1
135 #define QCA8K_HROUTER_PBASED_CONTROL1			0xe08
136 #define QCA8K_HROUTER_PBASED_CONTROL2			0xe0c
137 #define QCA8K_HNAT_CONTROL				0xe38
138 
139 /* MIB registers */
140 #define QCA8K_PORT_MIB_COUNTER(_i)			(0x1000 + (_i) * 0x100)
141 
142 /* QCA specific MII registers */
143 #define MII_ATH_MMD_ADDR				0x0d
144 #define MII_ATH_MMD_DATA				0x0e
145 
146 enum {
147 	QCA8K_PORT_SPEED_10M = 0,
148 	QCA8K_PORT_SPEED_100M = 1,
149 	QCA8K_PORT_SPEED_1000M = 2,
150 	QCA8K_PORT_SPEED_ERR = 3,
151 };
152 
153 enum qca8k_fdb_cmd {
154 	QCA8K_FDB_FLUSH	= 1,
155 	QCA8K_FDB_LOAD = 2,
156 	QCA8K_FDB_PURGE = 3,
157 	QCA8K_FDB_NEXT = 6,
158 	QCA8K_FDB_SEARCH = 7,
159 };
160 
161 struct ar8xxx_port_status {
162 	int enabled;
163 };
164 
165 struct qca8k_priv {
166 	struct regmap *regmap;
167 	struct mii_bus *bus;
168 	struct ar8xxx_port_status port_sts[QCA8K_NUM_PORTS];
169 	struct dsa_switch *ds;
170 	struct mutex reg_mutex;
171 	struct device *dev;
172 };
173 
174 struct qca8k_mib_desc {
175 	unsigned int size;
176 	unsigned int offset;
177 	const char *name;
178 };
179 
180 struct qca8k_fdb {
181 	u16 vid;
182 	u8 port_mask;
183 	u8 aging;
184 	u8 mac[6];
185 };
186 
187 #endif /* __QCA8K_H */
188