tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * drivers/drivers/net/fec_mpc52xx/fec.h
3 *
4 * Driver for the MPC5200 Fast Ethernet Controller
5 *
6 * Author: Dale Farnsworth <dfarnsworth@mvista.com>
7 *
8 * 2003-2004 (c) MontaVista, Software, Inc. This file is licensed under
9 * the terms of the GNU General Public License version 2. This program
10 * is licensed "as is" without any warranty of any kind, whether express
11 * or implied.
12 */
13
14#ifndef __DRIVERS_NET_MPC52XX_FEC_H__
15#define __DRIVERS_NET_MPC52XX_FEC_H__
16
17#include <linux/phy.h>
18
19/* Tunable constant */
20/* FEC_RX_BUFFER_SIZE includes 4 bytes for CRC32 */
21#define FEC_RX_BUFFER_SIZE 1522 /* max receive packet size */
22#define FEC_RX_NUM_BD 256
23#define FEC_TX_NUM_BD 64
24
25#define FEC_RESET_DELAY 50 /* uS */
26
27#define FEC_WATCHDOG_TIMEOUT ((400*HZ)/1000)
28
29struct mpc52xx_fec_priv {
30 int duplex;
31 int r_irq;
32 int t_irq;
33 struct mpc52xx_fec __iomem *fec;
34 struct bcom_task *rx_dmatsk;
35 struct bcom_task *tx_dmatsk;
36 spinlock_t lock;
37 int msg_enable;
38
39 int has_phy;
40 unsigned int phy_speed;
41 unsigned int phy_addr;
42 struct phy_device *phydev;
43 enum phy_state link;
44 int speed;
45};
46
47
48/* ======================================================================== */
49/* Hardware register sets & bits */
50/* ======================================================================== */
51
52struct mpc52xx_fec {
53 u32 fec_id; /* FEC + 0x000 */
54 u32 ievent; /* FEC + 0x004 */
55 u32 imask; /* FEC + 0x008 */
56
57 u32 reserved0[1]; /* FEC + 0x00C */
58 u32 r_des_active; /* FEC + 0x010 */
59 u32 x_des_active; /* FEC + 0x014 */
60 u32 r_des_active_cl; /* FEC + 0x018 */
61 u32 x_des_active_cl; /* FEC + 0x01C */
62 u32 ivent_set; /* FEC + 0x020 */
63 u32 ecntrl; /* FEC + 0x024 */
64
65 u32 reserved1[6]; /* FEC + 0x028-03C */
66 u32 mii_data; /* FEC + 0x040 */
67 u32 mii_speed; /* FEC + 0x044 */
68 u32 mii_status; /* FEC + 0x048 */
69
70 u32 reserved2[5]; /* FEC + 0x04C-05C */
71 u32 mib_data; /* FEC + 0x060 */
72 u32 mib_control; /* FEC + 0x064 */
73
74 u32 reserved3[6]; /* FEC + 0x068-7C */
75 u32 r_activate; /* FEC + 0x080 */
76 u32 r_cntrl; /* FEC + 0x084 */
77 u32 r_hash; /* FEC + 0x088 */
78 u32 r_data; /* FEC + 0x08C */
79 u32 ar_done; /* FEC + 0x090 */
80 u32 r_test; /* FEC + 0x094 */
81 u32 r_mib; /* FEC + 0x098 */
82 u32 r_da_low; /* FEC + 0x09C */
83 u32 r_da_high; /* FEC + 0x0A0 */
84
85 u32 reserved4[7]; /* FEC + 0x0A4-0BC */
86 u32 x_activate; /* FEC + 0x0C0 */
87 u32 x_cntrl; /* FEC + 0x0C4 */
88 u32 backoff; /* FEC + 0x0C8 */
89 u32 x_data; /* FEC + 0x0CC */
90 u32 x_status; /* FEC + 0x0D0 */
91 u32 x_mib; /* FEC + 0x0D4 */
92 u32 x_test; /* FEC + 0x0D8 */
93 u32 fdxfc_da1; /* FEC + 0x0DC */
94 u32 fdxfc_da2; /* FEC + 0x0E0 */
95 u32 paddr1; /* FEC + 0x0E4 */
96 u32 paddr2; /* FEC + 0x0E8 */
97 u32 op_pause; /* FEC + 0x0EC */
98
99 u32 reserved5[4]; /* FEC + 0x0F0-0FC */
100 u32 instr_reg; /* FEC + 0x100 */
101 u32 context_reg; /* FEC + 0x104 */
102 u32 test_cntrl; /* FEC + 0x108 */
103 u32 acc_reg; /* FEC + 0x10C */
104 u32 ones; /* FEC + 0x110 */
105 u32 zeros; /* FEC + 0x114 */
106 u32 iaddr1; /* FEC + 0x118 */
107 u32 iaddr2; /* FEC + 0x11C */
108 u32 gaddr1; /* FEC + 0x120 */
109 u32 gaddr2; /* FEC + 0x124 */
110 u32 random; /* FEC + 0x128 */
111 u32 rand1; /* FEC + 0x12C */
112 u32 tmp; /* FEC + 0x130 */
113
114 u32 reserved6[3]; /* FEC + 0x134-13C */
115 u32 fifo_id; /* FEC + 0x140 */
116 u32 x_wmrk; /* FEC + 0x144 */
117 u32 fcntrl; /* FEC + 0x148 */
118 u32 r_bound; /* FEC + 0x14C */
119 u32 r_fstart; /* FEC + 0x150 */
120 u32 r_count; /* FEC + 0x154 */
121 u32 r_lag; /* FEC + 0x158 */
122 u32 r_read; /* FEC + 0x15C */
123 u32 r_write; /* FEC + 0x160 */
124 u32 x_count; /* FEC + 0x164 */
125 u32 x_lag; /* FEC + 0x168 */
126 u32 x_retry; /* FEC + 0x16C */
127 u32 x_write; /* FEC + 0x170 */
128 u32 x_read; /* FEC + 0x174 */
129
130 u32 reserved7[2]; /* FEC + 0x178-17C */
131 u32 fm_cntrl; /* FEC + 0x180 */
132 u32 rfifo_data; /* FEC + 0x184 */
133 u32 rfifo_status; /* FEC + 0x188 */
134 u32 rfifo_cntrl; /* FEC + 0x18C */
135 u32 rfifo_lrf_ptr; /* FEC + 0x190 */
136 u32 rfifo_lwf_ptr; /* FEC + 0x194 */
137 u32 rfifo_alarm; /* FEC + 0x198 */
138 u32 rfifo_rdptr; /* FEC + 0x19C */
139 u32 rfifo_wrptr; /* FEC + 0x1A0 */
140 u32 tfifo_data; /* FEC + 0x1A4 */
141 u32 tfifo_status; /* FEC + 0x1A8 */
142 u32 tfifo_cntrl; /* FEC + 0x1AC */
143 u32 tfifo_lrf_ptr; /* FEC + 0x1B0 */
144 u32 tfifo_lwf_ptr; /* FEC + 0x1B4 */
145 u32 tfifo_alarm; /* FEC + 0x1B8 */
146 u32 tfifo_rdptr; /* FEC + 0x1BC */
147 u32 tfifo_wrptr; /* FEC + 0x1C0 */
148
149 u32 reset_cntrl; /* FEC + 0x1C4 */
150 u32 xmit_fsm; /* FEC + 0x1C8 */
151
152 u32 reserved8[3]; /* FEC + 0x1CC-1D4 */
153 u32 rdes_data0; /* FEC + 0x1D8 */
154 u32 rdes_data1; /* FEC + 0x1DC */
155 u32 r_length; /* FEC + 0x1E0 */
156 u32 x_length; /* FEC + 0x1E4 */
157 u32 x_addr; /* FEC + 0x1E8 */
158 u32 cdes_data; /* FEC + 0x1EC */
159 u32 status; /* FEC + 0x1F0 */
160 u32 dma_control; /* FEC + 0x1F4 */
161 u32 des_cmnd; /* FEC + 0x1F8 */
162 u32 data; /* FEC + 0x1FC */
163
164 u32 rmon_t_drop; /* FEC + 0x200 */
165 u32 rmon_t_packets; /* FEC + 0x204 */
166 u32 rmon_t_bc_pkt; /* FEC + 0x208 */
167 u32 rmon_t_mc_pkt; /* FEC + 0x20C */
168 u32 rmon_t_crc_align; /* FEC + 0x210 */
169 u32 rmon_t_undersize; /* FEC + 0x214 */
170 u32 rmon_t_oversize; /* FEC + 0x218 */
171 u32 rmon_t_frag; /* FEC + 0x21C */
172 u32 rmon_t_jab; /* FEC + 0x220 */
173 u32 rmon_t_col; /* FEC + 0x224 */
174 u32 rmon_t_p64; /* FEC + 0x228 */
175 u32 rmon_t_p65to127; /* FEC + 0x22C */
176 u32 rmon_t_p128to255; /* FEC + 0x230 */
177 u32 rmon_t_p256to511; /* FEC + 0x234 */
178 u32 rmon_t_p512to1023; /* FEC + 0x238 */
179 u32 rmon_t_p1024to2047; /* FEC + 0x23C */
180 u32 rmon_t_p_gte2048; /* FEC + 0x240 */
181 u32 rmon_t_octets; /* FEC + 0x244 */
182 u32 ieee_t_drop; /* FEC + 0x248 */
183 u32 ieee_t_frame_ok; /* FEC + 0x24C */
184 u32 ieee_t_1col; /* FEC + 0x250 */
185 u32 ieee_t_mcol; /* FEC + 0x254 */
186 u32 ieee_t_def; /* FEC + 0x258 */
187 u32 ieee_t_lcol; /* FEC + 0x25C */
188 u32 ieee_t_excol; /* FEC + 0x260 */
189 u32 ieee_t_macerr; /* FEC + 0x264 */
190 u32 ieee_t_cserr; /* FEC + 0x268 */
191 u32 ieee_t_sqe; /* FEC + 0x26C */
192 u32 t_fdxfc; /* FEC + 0x270 */
193 u32 ieee_t_octets_ok; /* FEC + 0x274 */
194
195 u32 reserved9[2]; /* FEC + 0x278-27C */
196 u32 rmon_r_drop; /* FEC + 0x280 */
197 u32 rmon_r_packets; /* FEC + 0x284 */
198 u32 rmon_r_bc_pkt; /* FEC + 0x288 */
199 u32 rmon_r_mc_pkt; /* FEC + 0x28C */
200 u32 rmon_r_crc_align; /* FEC + 0x290 */
201 u32 rmon_r_undersize; /* FEC + 0x294 */
202 u32 rmon_r_oversize; /* FEC + 0x298 */
203 u32 rmon_r_frag; /* FEC + 0x29C */
204 u32 rmon_r_jab; /* FEC + 0x2A0 */
205
206 u32 rmon_r_resvd_0; /* FEC + 0x2A4 */
207
208 u32 rmon_r_p64; /* FEC + 0x2A8 */
209 u32 rmon_r_p65to127; /* FEC + 0x2AC */
210 u32 rmon_r_p128to255; /* FEC + 0x2B0 */
211 u32 rmon_r_p256to511; /* FEC + 0x2B4 */
212 u32 rmon_r_p512to1023; /* FEC + 0x2B8 */
213 u32 rmon_r_p1024to2047; /* FEC + 0x2BC */
214 u32 rmon_r_p_gte2048; /* FEC + 0x2C0 */
215 u32 rmon_r_octets; /* FEC + 0x2C4 */
216 u32 ieee_r_drop; /* FEC + 0x2C8 */
217 u32 ieee_r_frame_ok; /* FEC + 0x2CC */
218 u32 ieee_r_crc; /* FEC + 0x2D0 */
219 u32 ieee_r_align; /* FEC + 0x2D4 */
220 u32 r_macerr; /* FEC + 0x2D8 */
221 u32 r_fdxfc; /* FEC + 0x2DC */
222 u32 ieee_r_octets_ok; /* FEC + 0x2E0 */
223
224 u32 reserved10[7]; /* FEC + 0x2E4-2FC */
225
226 u32 reserved11[64]; /* FEC + 0x300-3FF */
227};
228
229#define FEC_MIB_DISABLE 0x80000000
230
231#define FEC_IEVENT_HBERR 0x80000000
232#define FEC_IEVENT_BABR 0x40000000
233#define FEC_IEVENT_BABT 0x20000000
234#define FEC_IEVENT_GRA 0x10000000
235#define FEC_IEVENT_TFINT 0x08000000
236#define FEC_IEVENT_MII 0x00800000
237#define FEC_IEVENT_LATE_COL 0x00200000
238#define FEC_IEVENT_COL_RETRY_LIM 0x00100000
239#define FEC_IEVENT_XFIFO_UN 0x00080000
240#define FEC_IEVENT_XFIFO_ERROR 0x00040000
241#define FEC_IEVENT_RFIFO_ERROR 0x00020000
242
243#define FEC_IMASK_HBERR 0x80000000
244#define FEC_IMASK_BABR 0x40000000
245#define FEC_IMASK_BABT 0x20000000
246#define FEC_IMASK_GRA 0x10000000
247#define FEC_IMASK_MII 0x00800000
248#define FEC_IMASK_LATE_COL 0x00200000
249#define FEC_IMASK_COL_RETRY_LIM 0x00100000
250#define FEC_IMASK_XFIFO_UN 0x00080000
251#define FEC_IMASK_XFIFO_ERROR 0x00040000
252#define FEC_IMASK_RFIFO_ERROR 0x00020000
253
254/* all but MII, which is enabled separately */
255#define FEC_IMASK_ENABLE (FEC_IMASK_HBERR | FEC_IMASK_BABR | \
256 FEC_IMASK_BABT | FEC_IMASK_GRA | FEC_IMASK_LATE_COL | \
257 FEC_IMASK_COL_RETRY_LIM | FEC_IMASK_XFIFO_UN | \
258 FEC_IMASK_XFIFO_ERROR | FEC_IMASK_RFIFO_ERROR)
259
260#define FEC_RCNTRL_MAX_FL_SHIFT 16
261#define FEC_RCNTRL_LOOP 0x01
262#define FEC_RCNTRL_DRT 0x02
263#define FEC_RCNTRL_MII_MODE 0x04
264#define FEC_RCNTRL_PROM 0x08
265#define FEC_RCNTRL_BC_REJ 0x10
266#define FEC_RCNTRL_FCE 0x20
267
268#define FEC_TCNTRL_GTS 0x00000001
269#define FEC_TCNTRL_HBC 0x00000002
270#define FEC_TCNTRL_FDEN 0x00000004
271#define FEC_TCNTRL_TFC_PAUSE 0x00000008
272#define FEC_TCNTRL_RFC_PAUSE 0x00000010
273
274#define FEC_ECNTRL_RESET 0x00000001
275#define FEC_ECNTRL_ETHER_EN 0x00000002
276
277#define FEC_MII_DATA_ST 0x40000000 /* Start frame */
278#define FEC_MII_DATA_OP_RD 0x20000000 /* Perform read */
279#define FEC_MII_DATA_OP_WR 0x10000000 /* Perform write */
280#define FEC_MII_DATA_PA_MSK 0x0f800000 /* PHY Address mask */
281#define FEC_MII_DATA_RA_MSK 0x007c0000 /* PHY Register mask */
282#define FEC_MII_DATA_TA 0x00020000 /* Turnaround */
283#define FEC_MII_DATA_DATAMSK 0x0000ffff /* PHY data mask */
284
285#define FEC_MII_READ_FRAME (FEC_MII_DATA_ST | FEC_MII_DATA_OP_RD | FEC_MII_DATA_TA)
286#define FEC_MII_WRITE_FRAME (FEC_MII_DATA_ST | FEC_MII_DATA_OP_WR | FEC_MII_DATA_TA)
287
288#define FEC_MII_DATA_RA_SHIFT 0x12 /* MII reg addr bits */
289#define FEC_MII_DATA_PA_SHIFT 0x17 /* MII PHY addr bits */
290
291#define FEC_PADDR2_TYPE 0x8808
292
293#define FEC_OP_PAUSE_OPCODE 0x00010000
294
295#define FEC_FIFO_WMRK_256B 0x3
296
297#define FEC_FIFO_STATUS_ERR 0x00400000
298#define FEC_FIFO_STATUS_UF 0x00200000
299#define FEC_FIFO_STATUS_OF 0x00100000
300
301#define FEC_FIFO_CNTRL_FRAME 0x08000000
302#define FEC_FIFO_CNTRL_LTG_7 0x07000000
303
304#define FEC_RESET_CNTRL_RESET_FIFO 0x02000000
305#define FEC_RESET_CNTRL_ENABLE_IS_RESET 0x01000000
306
307#define FEC_XMIT_FSM_APPEND_CRC 0x02000000
308#define FEC_XMIT_FSM_ENABLE_CRC 0x01000000
309
310
311extern struct of_platform_driver mpc52xx_fec_mdio_driver;
312
313#endif /* __DRIVERS_NET_MPC52XX_FEC_H__ */