1 /*******************************************************************************
2 Copyright (C) 2007-2009 STMicroelectronics Ltd
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.
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
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.
17 The full GNU General Public License is included in this distribution in
18 the file called "COPYING".
20 Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
21 *******************************************************************************/
22 #ifndef __DWMAC1000_H__
23 #define __DWMAC1000_H__
25 #include <linux/phy.h>
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_DEBUG 0x00000024 /* GMAC debug register */
38 #define GMAC_WAKEUP_FILTER 0x00000028 /* Wake-up Frame Filter */
40 #define GMAC_INT_STATUS 0x00000038 /* interrupt status register */
41 enum dwmac1000_irq_status {
43 time_stamp_irq = 0x0200,
44 mmc_rx_csum_offload_irq = 0x0080,
50 pcs_link_irq = 0x0002,
53 #define GMAC_INT_MASK 0x0000003c /* interrupt mask register */
55 /* PMT Control and Status */
56 #define GMAC_PMT 0x0000002c
58 pointer_reset = 0x80000000,
59 global_unicast = 0x00000200,
60 wake_up_rx_frame = 0x00000040,
61 magic_frame = 0x00000020,
62 wake_up_frame_en = 0x00000004,
63 magic_pkt_en = 0x00000002,
64 power_down = 0x00000001,
67 /* Energy Efficient Ethernet (EEE)
69 * LPI status, timer and control register offset
71 #define LPI_CTRL_STATUS 0x0030
72 #define LPI_TIMER_CTRL 0x0034
74 /* LPI control and status defines */
75 #define LPI_CTRL_STATUS_LPITXA 0x00080000 /* Enable LPI TX Automate */
76 #define LPI_CTRL_STATUS_PLSEN 0x00040000 /* Enable PHY Link Status */
77 #define LPI_CTRL_STATUS_PLS 0x00020000 /* PHY Link Status */
78 #define LPI_CTRL_STATUS_LPIEN 0x00010000 /* LPI Enable */
79 #define LPI_CTRL_STATUS_RLPIST 0x00000200 /* Receive LPI state */
80 #define LPI_CTRL_STATUS_TLPIST 0x00000100 /* Transmit LPI state */
81 #define LPI_CTRL_STATUS_RLPIEX 0x00000008 /* Receive LPI Exit */
82 #define LPI_CTRL_STATUS_RLPIEN 0x00000004 /* Receive LPI Entry */
83 #define LPI_CTRL_STATUS_TLPIEX 0x00000002 /* Transmit LPI Exit */
84 #define LPI_CTRL_STATUS_TLPIEN 0x00000001 /* Transmit LPI Entry */
86 /* GMAC HW ADDR regs */
87 #define GMAC_ADDR_HIGH(reg) (((reg > 15) ? 0x00000800 : 0x00000040) + \
89 #define GMAC_ADDR_LOW(reg) (((reg > 15) ? 0x00000804 : 0x00000044) + \
91 #define GMAC_MAX_PERFECT_ADDRESSES 1
93 /* PCS registers (AN/TBI/SGMII/RGMII) offset */
94 #define GMAC_AN_CTRL 0x000000c0 /* AN control */
95 #define GMAC_AN_STATUS 0x000000c4 /* AN status */
96 #define GMAC_ANE_ADV 0x000000c8 /* Auto-Neg. Advertisement */
97 #define GMAC_ANE_LPA 0x000000cc /* Auto-Neg. link partener ability */
98 #define GMAC_ANE_EXP 0x000000d0 /* ANE expansion */
99 #define GMAC_TBI 0x000000d4 /* TBI extend status */
100 #define GMAC_S_R_GMII 0x000000d8 /* SGMII RGMII status */
102 /* AN Configuration defines */
103 #define GMAC_AN_CTRL_RAN 0x00000200 /* Restart Auto-Negotiation */
104 #define GMAC_AN_CTRL_ANE 0x00001000 /* Auto-Negotiation Enable */
105 #define GMAC_AN_CTRL_ELE 0x00004000 /* External Loopback Enable */
106 #define GMAC_AN_CTRL_ECD 0x00010000 /* Enable Comma Detect */
107 #define GMAC_AN_CTRL_LR 0x00020000 /* Lock to Reference */
108 #define GMAC_AN_CTRL_SGMRAL 0x00040000 /* SGMII RAL Control */
110 /* AN Status defines */
111 #define GMAC_AN_STATUS_LS 0x00000004 /* Link Status 0:down 1:up */
112 #define GMAC_AN_STATUS_ANA 0x00000008 /* Auto-Negotiation Ability */
113 #define GMAC_AN_STATUS_ANC 0x00000020 /* Auto-Negotiation Complete */
114 #define GMAC_AN_STATUS_ES 0x00000100 /* Extended Status */
116 /* Register 54 (SGMII/RGMII status register) */
117 #define GMAC_S_R_GMII_LINK 0x8
118 #define GMAC_S_R_GMII_SPEED 0x5
119 #define GMAC_S_R_GMII_SPEED_SHIFT 0x1
120 #define GMAC_S_R_GMII_MODE 0x1
121 #define GMAC_S_R_GMII_SPEED_125 2
122 #define GMAC_S_R_GMII_SPEED_25 1
124 /* Common ADV and LPA defines */
125 #define GMAC_ANE_FD (1 << 5)
126 #define GMAC_ANE_HD (1 << 6)
127 #define GMAC_ANE_PSE (3 << 7)
128 #define GMAC_ANE_PSE_SHIFT 7
130 /* GMAC Configuration defines */
131 #define GMAC_CONTROL_2K 0x08000000 /* IEEE 802.3as 2K packets */
132 #define GMAC_CONTROL_TC 0x01000000 /* Transmit Conf. in RGMII/SGMII */
133 #define GMAC_CONTROL_WD 0x00800000 /* Disable Watchdog on receive */
134 #define GMAC_CONTROL_JD 0x00400000 /* Jabber disable */
135 #define GMAC_CONTROL_BE 0x00200000 /* Frame Burst Enable */
136 #define GMAC_CONTROL_JE 0x00100000 /* Jumbo frame */
137 enum inter_frame_gap {
138 GMAC_CONTROL_IFG_88 = 0x00040000,
139 GMAC_CONTROL_IFG_80 = 0x00020000,
140 GMAC_CONTROL_IFG_40 = 0x000e0000,
142 #define GMAC_CONTROL_DCRS 0x00010000 /* Disable carrier sense */
143 #define GMAC_CONTROL_PS 0x00008000 /* Port Select 0:GMI 1:MII */
144 #define GMAC_CONTROL_FES 0x00004000 /* Speed 0:10 1:100 */
145 #define GMAC_CONTROL_DO 0x00002000 /* Disable Rx Own */
146 #define GMAC_CONTROL_LM 0x00001000 /* Loop-back mode */
147 #define GMAC_CONTROL_DM 0x00000800 /* Duplex Mode */
148 #define GMAC_CONTROL_IPC 0x00000400 /* Checksum Offload */
149 #define GMAC_CONTROL_DR 0x00000200 /* Disable Retry */
150 #define GMAC_CONTROL_LUD 0x00000100 /* Link up/down */
151 #define GMAC_CONTROL_ACS 0x00000080 /* Auto Pad/FCS Stripping */
152 #define GMAC_CONTROL_DC 0x00000010 /* Deferral Check */
153 #define GMAC_CONTROL_TE 0x00000008 /* Transmitter Enable */
154 #define GMAC_CONTROL_RE 0x00000004 /* Receiver Enable */
156 #define GMAC_CORE_INIT (GMAC_CONTROL_JD | GMAC_CONTROL_PS | GMAC_CONTROL_ACS | \
157 GMAC_CONTROL_BE | GMAC_CONTROL_DCRS)
159 /* GMAC Frame Filter defines */
160 #define GMAC_FRAME_FILTER_PR 0x00000001 /* Promiscuous Mode */
161 #define GMAC_FRAME_FILTER_HUC 0x00000002 /* Hash Unicast */
162 #define GMAC_FRAME_FILTER_HMC 0x00000004 /* Hash Multicast */
163 #define GMAC_FRAME_FILTER_DAIF 0x00000008 /* DA Inverse Filtering */
164 #define GMAC_FRAME_FILTER_PM 0x00000010 /* Pass all multicast */
165 #define GMAC_FRAME_FILTER_DBF 0x00000020 /* Disable Broadcast frames */
166 #define GMAC_FRAME_FILTER_SAIF 0x00000100 /* Inverse Filtering */
167 #define GMAC_FRAME_FILTER_SAF 0x00000200 /* Source Address Filter */
168 #define GMAC_FRAME_FILTER_HPF 0x00000400 /* Hash or perfect Filter */
169 #define GMAC_FRAME_FILTER_RA 0x80000000 /* Receive all mode */
170 /* GMII ADDR defines */
171 #define GMAC_MII_ADDR_WRITE 0x00000002 /* MII Write */
172 #define GMAC_MII_ADDR_BUSY 0x00000001 /* MII Busy */
173 /* GMAC FLOW CTRL defines */
174 #define GMAC_FLOW_CTRL_PT_MASK 0xffff0000 /* Pause Time Mask */
175 #define GMAC_FLOW_CTRL_PT_SHIFT 16
176 #define GMAC_FLOW_CTRL_UP 0x00000008 /* Unicast pause frame enable */
177 #define GMAC_FLOW_CTRL_RFE 0x00000004 /* Rx Flow Control Enable */
178 #define GMAC_FLOW_CTRL_TFE 0x00000002 /* Tx Flow Control Enable */
179 #define GMAC_FLOW_CTRL_FCB_BPA 0x00000001 /* Flow Control Busy ... */
181 /* DEBUG Register defines */
182 /* MTL TxStatus FIFO */
183 #define GMAC_DEBUG_TXSTSFSTS BIT(25) /* MTL TxStatus FIFO Full Status */
184 #define GMAC_DEBUG_TXFSTS BIT(24) /* MTL Tx FIFO Not Empty Status */
185 #define GMAC_DEBUG_TWCSTS BIT(22) /* MTL Tx FIFO Write Controller */
186 /* MTL Tx FIFO Read Controller Status */
187 #define GMAC_DEBUG_TRCSTS_MASK GENMASK(21, 20)
188 #define GMAC_DEBUG_TRCSTS_SHIFT 20
189 #define GMAC_DEBUG_TRCSTS_IDLE 0
190 #define GMAC_DEBUG_TRCSTS_READ 1
191 #define GMAC_DEBUG_TRCSTS_TXW 2
192 #define GMAC_DEBUG_TRCSTS_WRITE 3
193 #define GMAC_DEBUG_TXPAUSED BIT(19) /* MAC Transmitter in PAUSE */
194 /* MAC Transmit Frame Controller Status */
195 #define GMAC_DEBUG_TFCSTS_MASK GENMASK(18, 17)
196 #define GMAC_DEBUG_TFCSTS_SHIFT 17
197 #define GMAC_DEBUG_TFCSTS_IDLE 0
198 #define GMAC_DEBUG_TFCSTS_WAIT 1
199 #define GMAC_DEBUG_TFCSTS_GEN_PAUSE 2
200 #define GMAC_DEBUG_TFCSTS_XFER 3
201 /* MAC GMII or MII Transmit Protocol Engine Status */
202 #define GMAC_DEBUG_TPESTS BIT(16)
203 #define GMAC_DEBUG_RXFSTS_MASK GENMASK(9, 8) /* MTL Rx FIFO Fill-level */
204 #define GMAC_DEBUG_RXFSTS_SHIFT 8
205 #define GMAC_DEBUG_RXFSTS_EMPTY 0
206 #define GMAC_DEBUG_RXFSTS_BT 1
207 #define GMAC_DEBUG_RXFSTS_AT 2
208 #define GMAC_DEBUG_RXFSTS_FULL 3
209 #define GMAC_DEBUG_RRCSTS_MASK GENMASK(6, 5) /* MTL Rx FIFO Read Controller */
210 #define GMAC_DEBUG_RRCSTS_SHIFT 5
211 #define GMAC_DEBUG_RRCSTS_IDLE 0
212 #define GMAC_DEBUG_RRCSTS_RDATA 1
213 #define GMAC_DEBUG_RRCSTS_RSTAT 2
214 #define GMAC_DEBUG_RRCSTS_FLUSH 3
215 #define GMAC_DEBUG_RWCSTS BIT(4) /* MTL Rx FIFO Write Controller Active */
216 /* MAC Receive Frame Controller FIFO Status */
217 #define GMAC_DEBUG_RFCFCSTS_MASK GENMASK(2, 1)
218 #define GMAC_DEBUG_RFCFCSTS_SHIFT 1
219 /* MAC GMII or MII Receive Protocol Engine Status */
220 #define GMAC_DEBUG_RPESTS BIT(0)
222 /*--- DMA BLOCK defines ---*/
223 /* DMA Bus Mode register defines */
224 #define DMA_BUS_MODE_DA 0x00000002 /* Arbitration scheme */
225 #define DMA_BUS_MODE_DSL_MASK 0x0000007c /* Descriptor Skip Length */
226 #define DMA_BUS_MODE_DSL_SHIFT 2 /* (in DWORDS) */
227 /* Programmable burst length (passed thorugh platform)*/
228 #define DMA_BUS_MODE_PBL_MASK 0x00003f00 /* Programmable Burst Len */
229 #define DMA_BUS_MODE_PBL_SHIFT 8
230 #define DMA_BUS_MODE_ATDS 0x00000080 /* Alternate Descriptor Size */
232 enum rx_tx_priority_ratio {
233 double_ratio = 0x00004000, /* 2:1 */
234 triple_ratio = 0x00008000, /* 3:1 */
235 quadruple_ratio = 0x0000c000, /* 4:1 */
238 #define DMA_BUS_MODE_FB 0x00010000 /* Fixed burst */
239 #define DMA_BUS_MODE_MB 0x04000000 /* Mixed burst */
240 #define DMA_BUS_MODE_RPBL_MASK 0x003e0000 /* Rx-Programmable Burst Len */
241 #define DMA_BUS_MODE_RPBL_SHIFT 17
242 #define DMA_BUS_MODE_USP 0x00800000
243 #define DMA_BUS_MODE_MAXPBL 0x01000000
244 #define DMA_BUS_MODE_AAL 0x02000000
246 /* DMA CRS Control and Status Register Mapping */
247 #define DMA_HOST_TX_DESC 0x00001048 /* Current Host Tx descriptor */
248 #define DMA_HOST_RX_DESC 0x0000104c /* Current Host Rx descriptor */
249 /* DMA Bus Mode register defines */
250 #define DMA_BUS_PR_RATIO_MASK 0x0000c000 /* Rx/Tx priority ratio */
251 #define DMA_BUS_PR_RATIO_SHIFT 14
252 #define DMA_BUS_FB 0x00010000 /* Fixed Burst */
254 /* DMA operation mode defines (start/stop tx/rx are placed in common header)*/
255 /* Disable Drop TCP/IP csum error */
256 #define DMA_CONTROL_DT 0x04000000
257 #define DMA_CONTROL_RSF 0x02000000 /* Receive Store and Forward */
258 #define DMA_CONTROL_DFF 0x01000000 /* Disaable flushing */
259 /* Threshold for Activating the FC */
261 act_full_minus_1 = 0x00800000,
262 act_full_minus_2 = 0x00800200,
263 act_full_minus_3 = 0x00800400,
264 act_full_minus_4 = 0x00800600,
266 /* Threshold for Deactivating the FC */
268 deac_full_minus_1 = 0x00400000,
269 deac_full_minus_2 = 0x00400800,
270 deac_full_minus_3 = 0x00401000,
271 deac_full_minus_4 = 0x00401800,
273 #define DMA_CONTROL_TSF 0x00200000 /* Transmit Store and Forward */
276 DMA_CONTROL_TTC_64 = 0x00000000,
277 DMA_CONTROL_TTC_128 = 0x00004000,
278 DMA_CONTROL_TTC_192 = 0x00008000,
279 DMA_CONTROL_TTC_256 = 0x0000c000,
280 DMA_CONTROL_TTC_40 = 0x00010000,
281 DMA_CONTROL_TTC_32 = 0x00014000,
282 DMA_CONTROL_TTC_24 = 0x00018000,
283 DMA_CONTROL_TTC_16 = 0x0001c000,
285 #define DMA_CONTROL_TC_TX_MASK 0xfffe3fff
287 #define DMA_CONTROL_EFC 0x00000100
288 #define DMA_CONTROL_FEF 0x00000080
289 #define DMA_CONTROL_FUF 0x00000040
291 /* Receive flow control activation field
292 * RFA field in DMA control register, bits 23,10:9
294 #define DMA_CONTROL_RFA_MASK 0x00800600
296 /* Receive flow control deactivation field
297 * RFD field in DMA control register, bits 22,12:11
299 #define DMA_CONTROL_RFD_MASK 0x00401800
301 /* RFD and RFA fields are encoded as follows
304 * 0,00 - Full minus 1KB (only valid when rxfifo >= 4KB and EFC enabled)
305 * 0,01 - Full minus 2KB (only valid when rxfifo >= 4KB and EFC enabled)
306 * 0,10 - Full minus 3KB (only valid when rxfifo >= 4KB and EFC enabled)
307 * 0,11 - Full minus 4KB (only valid when rxfifo > 4KB and EFC enabled)
308 * 1,00 - Full minus 5KB (only valid when rxfifo > 8KB and EFC enabled)
309 * 1,01 - Full minus 6KB (only valid when rxfifo > 8KB and EFC enabled)
310 * 1,10 - Full minus 7KB (only valid when rxfifo > 8KB and EFC enabled)
313 * RFD should always be > RFA for a given FIFO size. RFD == RFA may work,
314 * but packet throughput performance may not be as expected.
316 * Be sure that bit 3 in GMAC Register 6 is set for Unicast Pause frame
317 * detection (IEEE Specification Requirement, Annex 31B, 31B.1, Pause
320 * Be sure that DZPA (bit 7 in Flow Control Register, GMAC Register 6),
321 * is set to 0. This allows pause frames with a quanta of 0 to be sent
322 * as an XOFF message to the link peer.
325 #define RFA_FULL_MINUS_1K 0x00000000
326 #define RFA_FULL_MINUS_2K 0x00000200
327 #define RFA_FULL_MINUS_3K 0x00000400
328 #define RFA_FULL_MINUS_4K 0x00000600
329 #define RFA_FULL_MINUS_5K 0x00800000
330 #define RFA_FULL_MINUS_6K 0x00800200
331 #define RFA_FULL_MINUS_7K 0x00800400
333 #define RFD_FULL_MINUS_1K 0x00000000
334 #define RFD_FULL_MINUS_2K 0x00000800
335 #define RFD_FULL_MINUS_3K 0x00001000
336 #define RFD_FULL_MINUS_4K 0x00001800
337 #define RFD_FULL_MINUS_5K 0x00400000
338 #define RFD_FULL_MINUS_6K 0x00400800
339 #define RFD_FULL_MINUS_7K 0x00401000
342 DMA_CONTROL_RTC_64 = 0x00000000,
343 DMA_CONTROL_RTC_32 = 0x00000008,
344 DMA_CONTROL_RTC_96 = 0x00000010,
345 DMA_CONTROL_RTC_128 = 0x00000018,
347 #define DMA_CONTROL_TC_RX_MASK 0xffffffe7
349 #define DMA_CONTROL_OSF 0x00000004 /* Operate on second frame */
351 /* MMC registers offset */
352 #define GMAC_MMC_CTRL 0x100
353 #define GMAC_MMC_RX_INTR 0x104
354 #define GMAC_MMC_TX_INTR 0x108
355 #define GMAC_MMC_RX_CSUM_OFFLOAD 0x208
356 #define GMAC_EXTHASH_BASE 0x500
358 extern const struct stmmac_dma_ops dwmac1000_dma_ops;
359 #endif /* __DWMAC1000_H__ */