1 /*******************************************************************************
2   Copyright (C) 2007-2009  STMicroelectronics Ltd
3 
4   This program is free software; you can redistribute it and/or modify it
5   under the terms and conditions of the GNU General Public License,
6   version 2, as published by the Free Software Foundation.
7 
8   This program is distributed in the hope it will be useful, but WITHOUT
9   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
11   more details.
12 
13   You should have received a copy of the GNU General Public License along with
14   this program; if not, write to the Free Software Foundation, Inc.,
15   51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
16 
17   The full GNU General Public License is included in this distribution in
18   the file called "COPYING".
19 
20   Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
21 *******************************************************************************/
22 #ifndef __DWMAC1000_H__
23 #define __DWMAC1000_H__
24 
25 #include <linux/phy.h>
26 #include "common.h"
27 
28 #define GMAC_CONTROL		0x00000000	/* Configuration */
29 #define GMAC_FRAME_FILTER	0x00000004	/* Frame Filter */
30 #define GMAC_HASH_HIGH		0x00000008	/* Multicast Hash Table High */
31 #define GMAC_HASH_LOW		0x0000000c	/* Multicast Hash Table Low */
32 #define GMAC_MII_ADDR		0x00000010	/* MII Address */
33 #define GMAC_MII_DATA		0x00000014	/* MII Data */
34 #define GMAC_FLOW_CTRL		0x00000018	/* Flow Control */
35 #define GMAC_VLAN_TAG		0x0000001c	/* VLAN Tag */
36 #define GMAC_VERSION		0x00000020	/* GMAC CORE Version */
37 #define GMAC_WAKEUP_FILTER	0x00000028	/* Wake-up Frame Filter */
38 
39 #define GMAC_INT_STATUS		0x00000038	/* interrupt status register */
40 enum dwmac1000_irq_status {
41 	lpiis_irq = 0x400,
42 	time_stamp_irq = 0x0200,
43 	mmc_rx_csum_offload_irq = 0x0080,
44 	mmc_tx_irq = 0x0040,
45 	mmc_rx_irq = 0x0020,
46 	mmc_irq = 0x0010,
47 	pmt_irq = 0x0008,
48 	pcs_ane_irq = 0x0004,
49 	pcs_link_irq = 0x0002,
50 	rgmii_irq = 0x0001,
51 };
52 #define GMAC_INT_MASK		0x0000003c	/* interrupt mask register */
53 
54 /* PMT Control and Status */
55 #define GMAC_PMT		0x0000002c
56 enum power_event {
57 	pointer_reset = 0x80000000,
58 	global_unicast = 0x00000200,
59 	wake_up_rx_frame = 0x00000040,
60 	magic_frame = 0x00000020,
61 	wake_up_frame_en = 0x00000004,
62 	magic_pkt_en = 0x00000002,
63 	power_down = 0x00000001,
64 };
65 
66 /* Energy Efficient Ethernet (EEE)
67  *
68  * LPI status, timer and control register offset
69  */
70 #define LPI_CTRL_STATUS	0x0030
71 #define LPI_TIMER_CTRL	0x0034
72 
73 /* LPI control and status defines */
74 #define LPI_CTRL_STATUS_LPITXA	0x00080000	/* Enable LPI TX Automate */
75 #define LPI_CTRL_STATUS_PLSEN	0x00040000	/* Enable PHY Link Status */
76 #define LPI_CTRL_STATUS_PLS	0x00020000	/* PHY Link Status */
77 #define LPI_CTRL_STATUS_LPIEN	0x00010000	/* LPI Enable */
78 #define LPI_CTRL_STATUS_RLPIST	0x00000200	/* Receive LPI state */
79 #define LPI_CTRL_STATUS_TLPIST	0x00000100	/* Transmit LPI state */
80 #define LPI_CTRL_STATUS_RLPIEX	0x00000008	/* Receive LPI Exit */
81 #define LPI_CTRL_STATUS_RLPIEN	0x00000004	/* Receive LPI Entry */
82 #define LPI_CTRL_STATUS_TLPIEX	0x00000002	/* Transmit LPI Exit */
83 #define LPI_CTRL_STATUS_TLPIEN	0x00000001	/* Transmit LPI Entry */
84 
85 /* GMAC HW ADDR regs */
86 #define GMAC_ADDR_HIGH(reg)	(((reg > 15) ? 0x00000800 : 0x00000040) + \
87 				(reg * 8))
88 #define GMAC_ADDR_LOW(reg)	(((reg > 15) ? 0x00000804 : 0x00000044) + \
89 				(reg * 8))
90 #define GMAC_MAX_PERFECT_ADDRESSES	1
91 
92 /* PCS registers (AN/TBI/SGMII/RGMII) offset */
93 #define GMAC_AN_CTRL	0x000000c0	/* AN control */
94 #define GMAC_AN_STATUS	0x000000c4	/* AN status */
95 #define GMAC_ANE_ADV	0x000000c8	/* Auto-Neg. Advertisement */
96 #define GMAC_ANE_LPA	0x000000cc	/* Auto-Neg. link partener ability */
97 #define GMAC_ANE_EXP	0x000000d0	/* ANE expansion */
98 #define GMAC_TBI	0x000000d4	/* TBI extend status */
99 #define GMAC_S_R_GMII	0x000000d8	/* SGMII RGMII status */
100 
101 /* AN Configuration defines */
102 #define GMAC_AN_CTRL_RAN	0x00000200	/* Restart Auto-Negotiation */
103 #define GMAC_AN_CTRL_ANE	0x00001000	/* Auto-Negotiation Enable */
104 #define GMAC_AN_CTRL_ELE	0x00004000	/* External Loopback Enable */
105 #define GMAC_AN_CTRL_ECD	0x00010000	/* Enable Comma Detect */
106 #define GMAC_AN_CTRL_LR		0x00020000	/* Lock to Reference */
107 #define GMAC_AN_CTRL_SGMRAL	0x00040000	/* SGMII RAL Control */
108 
109 /* AN Status defines */
110 #define GMAC_AN_STATUS_LS	0x00000004	/* Link Status 0:down 1:up */
111 #define GMAC_AN_STATUS_ANA	0x00000008	/* Auto-Negotiation Ability */
112 #define GMAC_AN_STATUS_ANC	0x00000020	/* Auto-Negotiation Complete */
113 #define GMAC_AN_STATUS_ES	0x00000100	/* Extended Status */
114 
115 /* Register 54 (SGMII/RGMII status register) */
116 #define GMAC_S_R_GMII_LINK		0x8
117 #define GMAC_S_R_GMII_SPEED		0x5
118 #define GMAC_S_R_GMII_SPEED_SHIFT	0x1
119 #define GMAC_S_R_GMII_MODE		0x1
120 #define GMAC_S_R_GMII_SPEED_125		2
121 #define GMAC_S_R_GMII_SPEED_25		1
122 
123 /* Common ADV and LPA defines */
124 #define GMAC_ANE_FD		(1 << 5)
125 #define GMAC_ANE_HD		(1 << 6)
126 #define GMAC_ANE_PSE		(3 << 7)
127 #define GMAC_ANE_PSE_SHIFT	7
128 
129 /* GMAC Configuration defines */
130 #define GMAC_CONTROL_2K 0x08000000	/* IEEE 802.3as 2K packets */
131 #define GMAC_CONTROL_TC	0x01000000	/* Transmit Conf. in RGMII/SGMII */
132 #define GMAC_CONTROL_WD	0x00800000	/* Disable Watchdog on receive */
133 #define GMAC_CONTROL_JD	0x00400000	/* Jabber disable */
134 #define GMAC_CONTROL_BE	0x00200000	/* Frame Burst Enable */
135 #define GMAC_CONTROL_JE	0x00100000	/* Jumbo frame */
136 enum inter_frame_gap {
137 	GMAC_CONTROL_IFG_88 = 0x00040000,
138 	GMAC_CONTROL_IFG_80 = 0x00020000,
139 	GMAC_CONTROL_IFG_40 = 0x000e0000,
140 };
141 #define GMAC_CONTROL_DCRS	0x00010000	/* Disable carrier sense */
142 #define GMAC_CONTROL_PS		0x00008000	/* Port Select 0:GMI 1:MII */
143 #define GMAC_CONTROL_FES	0x00004000	/* Speed 0:10 1:100 */
144 #define GMAC_CONTROL_DO		0x00002000	/* Disable Rx Own */
145 #define GMAC_CONTROL_LM		0x00001000	/* Loop-back mode */
146 #define GMAC_CONTROL_DM		0x00000800	/* Duplex Mode */
147 #define GMAC_CONTROL_IPC	0x00000400	/* Checksum Offload */
148 #define GMAC_CONTROL_DR		0x00000200	/* Disable Retry */
149 #define GMAC_CONTROL_LUD	0x00000100	/* Link up/down */
150 #define GMAC_CONTROL_ACS	0x00000080	/* Auto Pad/FCS Stripping */
151 #define GMAC_CONTROL_DC		0x00000010	/* Deferral Check */
152 #define GMAC_CONTROL_TE		0x00000008	/* Transmitter Enable */
153 #define GMAC_CONTROL_RE		0x00000004	/* Receiver Enable */
154 
155 #define GMAC_CORE_INIT (GMAC_CONTROL_JD | GMAC_CONTROL_PS | GMAC_CONTROL_ACS | \
156 			GMAC_CONTROL_BE)
157 
158 /* GMAC Frame Filter defines */
159 #define GMAC_FRAME_FILTER_PR	0x00000001	/* Promiscuous Mode */
160 #define GMAC_FRAME_FILTER_HUC	0x00000002	/* Hash Unicast */
161 #define GMAC_FRAME_FILTER_HMC	0x00000004	/* Hash Multicast */
162 #define GMAC_FRAME_FILTER_DAIF	0x00000008	/* DA Inverse Filtering */
163 #define GMAC_FRAME_FILTER_PM	0x00000010	/* Pass all multicast */
164 #define GMAC_FRAME_FILTER_DBF	0x00000020	/* Disable Broadcast frames */
165 #define GMAC_FRAME_FILTER_SAIF	0x00000100	/* Inverse Filtering */
166 #define GMAC_FRAME_FILTER_SAF	0x00000200	/* Source Address Filter */
167 #define GMAC_FRAME_FILTER_HPF	0x00000400	/* Hash or perfect Filter */
168 #define GMAC_FRAME_FILTER_RA	0x80000000	/* Receive all mode */
169 /* GMII ADDR  defines */
170 #define GMAC_MII_ADDR_WRITE	0x00000002	/* MII Write */
171 #define GMAC_MII_ADDR_BUSY	0x00000001	/* MII Busy */
172 /* GMAC FLOW CTRL defines */
173 #define GMAC_FLOW_CTRL_PT_MASK	0xffff0000	/* Pause Time Mask */
174 #define GMAC_FLOW_CTRL_PT_SHIFT	16
175 #define GMAC_FLOW_CTRL_RFE	0x00000004	/* Rx Flow Control Enable */
176 #define GMAC_FLOW_CTRL_TFE	0x00000002	/* Tx Flow Control Enable */
177 #define GMAC_FLOW_CTRL_FCB_BPA	0x00000001	/* Flow Control Busy ... */
178 
179 /*--- DMA BLOCK defines ---*/
180 /* DMA Bus Mode register defines */
181 #define DMA_BUS_MODE_SFT_RESET	0x00000001	/* Software Reset */
182 #define DMA_BUS_MODE_DA		0x00000002	/* Arbitration scheme */
183 #define DMA_BUS_MODE_DSL_MASK	0x0000007c	/* Descriptor Skip Length */
184 #define DMA_BUS_MODE_DSL_SHIFT	2		/*   (in DWORDS)      */
185 /* Programmable burst length (passed thorugh platform)*/
186 #define DMA_BUS_MODE_PBL_MASK	0x00003f00	/* Programmable Burst Len */
187 #define DMA_BUS_MODE_PBL_SHIFT	8
188 #define DMA_BUS_MODE_ATDS	0x00000080	/* Alternate Descriptor Size */
189 
190 enum rx_tx_priority_ratio {
191 	double_ratio = 0x00004000,	/* 2:1 */
192 	triple_ratio = 0x00008000,	/* 3:1 */
193 	quadruple_ratio = 0x0000c000,	/* 4:1 */
194 };
195 
196 #define DMA_BUS_MODE_FB		0x00010000	/* Fixed burst */
197 #define DMA_BUS_MODE_MB		0x04000000	/* Mixed burst */
198 #define DMA_BUS_MODE_RPBL_MASK	0x003e0000	/* Rx-Programmable Burst Len */
199 #define DMA_BUS_MODE_RPBL_SHIFT	17
200 #define DMA_BUS_MODE_USP	0x00800000
201 #define DMA_BUS_MODE_PBL	0x01000000
202 #define DMA_BUS_MODE_AAL	0x02000000
203 
204 /* DMA CRS Control and Status Register Mapping */
205 #define DMA_HOST_TX_DESC	  0x00001048	/* Current Host Tx descriptor */
206 #define DMA_HOST_RX_DESC	  0x0000104c	/* Current Host Rx descriptor */
207 /*  DMA Bus Mode register defines */
208 #define DMA_BUS_PR_RATIO_MASK	  0x0000c000	/* Rx/Tx priority ratio */
209 #define DMA_BUS_PR_RATIO_SHIFT	  14
210 #define DMA_BUS_FB	  	  0x00010000	/* Fixed Burst */
211 
212 /* DMA operation mode defines (start/stop tx/rx are placed in common header)*/
213 /* Disable Drop TCP/IP csum error */
214 #define DMA_CONTROL_DT		0x04000000
215 #define DMA_CONTROL_RSF		0x02000000	/* Receive Store and Forward */
216 #define DMA_CONTROL_DFF		0x01000000	/* Disaable flushing */
217 /* Threshold for Activating the FC */
218 enum rfa {
219 	act_full_minus_1 = 0x00800000,
220 	act_full_minus_2 = 0x00800200,
221 	act_full_minus_3 = 0x00800400,
222 	act_full_minus_4 = 0x00800600,
223 };
224 /* Threshold for Deactivating the FC */
225 enum rfd {
226 	deac_full_minus_1 = 0x00400000,
227 	deac_full_minus_2 = 0x00400800,
228 	deac_full_minus_3 = 0x00401000,
229 	deac_full_minus_4 = 0x00401800,
230 };
231 #define DMA_CONTROL_TSF	0x00200000	/* Transmit  Store and Forward */
232 
233 enum ttc_control {
234 	DMA_CONTROL_TTC_64 = 0x00000000,
235 	DMA_CONTROL_TTC_128 = 0x00004000,
236 	DMA_CONTROL_TTC_192 = 0x00008000,
237 	DMA_CONTROL_TTC_256 = 0x0000c000,
238 	DMA_CONTROL_TTC_40 = 0x00010000,
239 	DMA_CONTROL_TTC_32 = 0x00014000,
240 	DMA_CONTROL_TTC_24 = 0x00018000,
241 	DMA_CONTROL_TTC_16 = 0x0001c000,
242 };
243 #define DMA_CONTROL_TC_TX_MASK	0xfffe3fff
244 
245 #define DMA_CONTROL_EFC		0x00000100
246 #define DMA_CONTROL_FEF		0x00000080
247 #define DMA_CONTROL_FUF		0x00000040
248 
249 enum rtc_control {
250 	DMA_CONTROL_RTC_64 = 0x00000000,
251 	DMA_CONTROL_RTC_32 = 0x00000008,
252 	DMA_CONTROL_RTC_96 = 0x00000010,
253 	DMA_CONTROL_RTC_128 = 0x00000018,
254 };
255 #define DMA_CONTROL_TC_RX_MASK	0xffffffe7
256 
257 #define DMA_CONTROL_OSF	0x00000004	/* Operate on second frame */
258 
259 /* MMC registers offset */
260 #define GMAC_MMC_CTRL      0x100
261 #define GMAC_MMC_RX_INTR   0x104
262 #define GMAC_MMC_TX_INTR   0x108
263 #define GMAC_MMC_RX_CSUM_OFFLOAD   0x208
264 #define GMAC_EXTHASH_BASE  0x500
265 
266 extern const struct stmmac_dma_ops dwmac1000_dma_ops;
267 #endif /* __DWMAC1000_H__ */
268