1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright 2012 Freescale Semiconductor, Inc.
4 * Author: Sandeep Kumar Singh <sandeep@freescale.com>
5 */
6
7 /* This file is based on board/freescale/corenet_ds/eth_superhydra.c */
8
9 /*
10 * This file handles the board muxing between the Fman Ethernet MACs and
11 * the RGMII/SGMII/XGMII PHYs on a Freescale B4860 "Centaur". The SGMII
12 * PHYs are the two on-board 1Gb ports. There are no RGMII PHY on board.
13 * The 10Gb XGMII PHY is provided via the XAUI riser card. There is only
14 * one Fman device on B4860. The SERDES configuration is used to determine
15 * where the SGMII and XAUI cards exist, and also which Fman MACs are routed
16 * to which PHYs. So for a given Fman MAC, there is one and only PHY it
17 * connects to. MACs cannot be routed to PHYs dynamically. This configuration
18 * is done at boot time by reading SERDES protocol from RCW.
19 */
20
21 #include <common.h>
22 #include <netdev.h>
23 #include <asm/fsl_serdes.h>
24 #include <fm_eth.h>
25 #include <fsl_mdio.h>
26 #include <malloc.h>
27 #include <fdt_support.h>
28 #include <fsl_dtsec.h>
29
30 #include "../common/ngpixis.h"
31 #include "../common/fman.h"
32 #include "../common/qixis.h"
33 #include "b4860qds_qixis.h"
34
35 #define EMI_NONE 0xFFFFFFFF
36
37 #ifdef CONFIG_FMAN_ENET
38
39 /*
40 * Mapping of all 16 SERDES lanes to board slots. A value n(>0) will mean that
41 * lane at index is mapped to slot number n. A value of '0' will mean
42 * that the mapping must be determined dynamically, or that the lane maps to
43 * something other than a board slot
44 */
45 static u8 lane_to_slot[] = {
46 0, 0, 0, 0,
47 0, 0, 0, 0,
48 1, 1, 1, 1,
49 0, 0, 0, 0
50 };
51
52 /*
53 * This function initializes the lane_to_slot[] array. It reads RCW to check
54 * if Serdes2{E,F,G,H} is configured as slot 2 or as SFP and initializes
55 * lane_to_slot[] accordingly
56 */
initialize_lane_to_slot(void)57 static void initialize_lane_to_slot(void)
58 {
59 unsigned int serdes2_prtcl;
60 ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
61 serdes2_prtcl = in_be32(&gur->rcwsr[4]) &
62 FSL_CORENET2_RCWSR4_SRDS2_PRTCL;
63 serdes2_prtcl >>= FSL_CORENET2_RCWSR4_SRDS2_PRTCL_SHIFT;
64 debug("Initializing lane to slot: Serdes2 protocol: %x\n",
65 serdes2_prtcl);
66
67 switch (serdes2_prtcl) {
68 case 0x17:
69 case 0x18:
70 /*
71 * Configuration:
72 * SERDES: 2
73 * Lanes: A,B,C,D: SGMII
74 * Lanes: E,F: Aur
75 * Lanes: G,H: SRIO
76 */
77 case 0x91:
78 /*
79 * Configuration:
80 * SERDES: 2
81 * Lanes: A,B: SGMII
82 * Lanes: C,D: SRIO2
83 * Lanes: E,F,G,H: XAUI2
84 */
85 case 0x93:
86 /*
87 * Configuration:
88 * SERDES: 2
89 * Lanes: A,B,C,D: SGMII
90 * Lanes: E,F,G,H: XAUI2
91 */
92 case 0x98:
93 /*
94 * Configuration:
95 * SERDES: 2
96 * Lanes: A,B,C,D: XAUI2
97 * Lanes: E,F,G,H: XAUI2
98 */
99 case 0x9a:
100 /*
101 * Configuration:
102 * SERDES: 2
103 * Lanes: A,B: PCI
104 * Lanes: C,D: SGMII
105 * Lanes: E,F,G,H: XAUI2
106 */
107 case 0x9e:
108 /*
109 * Configuration:
110 * SERDES: 2
111 * Lanes: A,B,C,D: PCI
112 * Lanes: E,F,G,H: XAUI2
113 */
114 case 0xb1:
115 case 0xb2:
116 case 0x8c:
117 case 0x8d:
118 /*
119 * Configuration:
120 * SERDES: 2
121 * Lanes: A,B,C,D: PCI
122 * Lanes: E,F: SGMII 3&4
123 * Lanes: G,H: XFI
124 */
125 case 0xc2:
126 /*
127 * Configuration:
128 * SERDES: 2
129 * Lanes: A,B: SGMII
130 * Lanes: C,D: SRIO2
131 * Lanes: E,F,G,H: XAUI2
132 */
133 lane_to_slot[12] = 2;
134 lane_to_slot[13] = lane_to_slot[12];
135 lane_to_slot[14] = lane_to_slot[12];
136 lane_to_slot[15] = lane_to_slot[12];
137 break;
138
139 default:
140 printf("Fman: Unsupported SerDes2 Protocol 0x%02x\n",
141 serdes2_prtcl);
142 break;
143 }
144 return;
145 }
146
147 #endif /* #ifdef CONFIG_FMAN_ENET */
148
board_eth_init(bd_t * bis)149 int board_eth_init(bd_t *bis)
150 {
151 #ifdef CONFIG_FMAN_ENET
152 struct memac_mdio_info memac_mdio_info;
153 struct memac_mdio_info tg_memac_mdio_info;
154 unsigned int i;
155 unsigned int serdes1_prtcl, serdes2_prtcl;
156 int qsgmii;
157 struct mii_dev *bus;
158 ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
159 serdes1_prtcl = in_be32(&gur->rcwsr[4]) &
160 FSL_CORENET2_RCWSR4_SRDS1_PRTCL;
161 if (!serdes1_prtcl) {
162 printf("SERDES1 is not enabled\n");
163 return 0;
164 }
165 serdes1_prtcl >>= FSL_CORENET2_RCWSR4_SRDS1_PRTCL_SHIFT;
166 debug("Using SERDES1 Protocol: 0x%x:\n", serdes1_prtcl);
167
168 serdes2_prtcl = in_be32(&gur->rcwsr[4]) &
169 FSL_CORENET2_RCWSR4_SRDS2_PRTCL;
170 if (!serdes2_prtcl) {
171 printf("SERDES2 is not enabled\n");
172 return 0;
173 }
174 serdes2_prtcl >>= FSL_CORENET2_RCWSR4_SRDS2_PRTCL_SHIFT;
175 debug("Using SERDES2 Protocol: 0x%x:\n", serdes2_prtcl);
176
177 printf("Initializing Fman\n");
178
179 initialize_lane_to_slot();
180
181 memac_mdio_info.regs =
182 (struct memac_mdio_controller *)CONFIG_SYS_FM1_DTSEC_MDIO_ADDR;
183 memac_mdio_info.name = DEFAULT_FM_MDIO_NAME;
184
185 /* Register the real 1G MDIO bus */
186 fm_memac_mdio_init(bis, &memac_mdio_info);
187
188 tg_memac_mdio_info.regs =
189 (struct memac_mdio_controller *)CONFIG_SYS_FM1_TGEC_MDIO_ADDR;
190 tg_memac_mdio_info.name = DEFAULT_FM_TGEC_MDIO_NAME;
191
192 /* Register the real 10G MDIO bus */
193 fm_memac_mdio_init(bis, &tg_memac_mdio_info);
194
195 /*
196 * Program the two on board DTSEC PHY addresses assuming that they are
197 * all SGMII. RGMII is not supported on this board. Setting SGMII 5 and
198 * 6 to on board SGMII phys
199 */
200 fm_info_set_phy_address(FM1_DTSEC5, CONFIG_SYS_FM1_ONBOARD_PHY1_ADDR);
201 fm_info_set_phy_address(FM1_DTSEC6, CONFIG_SYS_FM1_ONBOARD_PHY2_ADDR);
202
203 switch (serdes1_prtcl) {
204 case 0x29:
205 case 0x2a:
206 /* Serdes 1: A-B SGMII, Configuring DTSEC 5 and 6 */
207 debug("Set phy addresses for FM1_DTSEC5:%x, FM1_DTSEC6:%x\n",
208 CONFIG_SYS_FM1_ONBOARD_PHY1_ADDR,
209 CONFIG_SYS_FM1_ONBOARD_PHY2_ADDR);
210 fm_info_set_phy_address(FM1_DTSEC5,
211 CONFIG_SYS_FM1_ONBOARD_PHY1_ADDR);
212 fm_info_set_phy_address(FM1_DTSEC6,
213 CONFIG_SYS_FM1_ONBOARD_PHY2_ADDR);
214 break;
215 #ifdef CONFIG_ARCH_B4420
216 case 0x17:
217 case 0x18:
218 /* Serdes 1: A-D SGMII, Configuring on board dual SGMII Phy */
219 debug("Set phy addresses for FM1_DTSEC3:%x, FM1_DTSEC4:%x\n",
220 CONFIG_SYS_FM1_ONBOARD_PHY1_ADDR,
221 CONFIG_SYS_FM1_ONBOARD_PHY2_ADDR);
222 /* Fixing Serdes clock by programming FPGA register */
223 QIXIS_WRITE(brdcfg[4], QIXIS_SRDS1CLK_125);
224 fm_info_set_phy_address(FM1_DTSEC3,
225 CONFIG_SYS_FM1_ONBOARD_PHY1_ADDR);
226 fm_info_set_phy_address(FM1_DTSEC4,
227 CONFIG_SYS_FM1_ONBOARD_PHY2_ADDR);
228 break;
229 #endif
230 default:
231 printf("Fman: Unsupported SerDes1 Protocol 0x%02x\n",
232 serdes1_prtcl);
233 break;
234 }
235 switch (serdes2_prtcl) {
236 case 0x17:
237 case 0x18:
238 debug("Set phy address on SGMII Riser for FM1_DTSEC1:%x\n",
239 CONFIG_SYS_FM1_DTSEC1_RISER_PHY_ADDR);
240 fm_info_set_phy_address(FM1_DTSEC1,
241 CONFIG_SYS_FM1_DTSEC1_RISER_PHY_ADDR);
242 fm_info_set_phy_address(FM1_DTSEC2,
243 CONFIG_SYS_FM1_DTSEC2_RISER_PHY_ADDR);
244 fm_info_set_phy_address(FM1_DTSEC3,
245 CONFIG_SYS_FM1_DTSEC3_RISER_PHY_ADDR);
246 fm_info_set_phy_address(FM1_DTSEC4,
247 CONFIG_SYS_FM1_DTSEC4_RISER_PHY_ADDR);
248 break;
249 case 0x48:
250 case 0x49:
251 debug("Set phy address on SGMII Riser for FM1_DTSEC1:%x\n",
252 CONFIG_SYS_FM1_DTSEC1_RISER_PHY_ADDR);
253 fm_info_set_phy_address(FM1_DTSEC1,
254 CONFIG_SYS_FM1_DTSEC1_RISER_PHY_ADDR);
255 fm_info_set_phy_address(FM1_DTSEC2,
256 CONFIG_SYS_FM1_DTSEC2_RISER_PHY_ADDR);
257 fm_info_set_phy_address(FM1_DTSEC3,
258 CONFIG_SYS_FM1_DTSEC3_RISER_PHY_ADDR);
259 break;
260 case 0xb1:
261 case 0xb2:
262 case 0x8c:
263 case 0x8d:
264 debug("Set phy addresses on SGMII Riser for FM1_DTSEC1:%x\n",
265 CONFIG_SYS_FM1_DTSEC1_RISER_PHY_ADDR);
266 fm_info_set_phy_address(FM1_DTSEC3,
267 CONFIG_SYS_FM1_DTSEC1_RISER_PHY_ADDR);
268 fm_info_set_phy_address(FM1_DTSEC4,
269 CONFIG_SYS_FM1_DTSEC2_RISER_PHY_ADDR);
270 /*
271 * XFI does not need a PHY to work, but to make U-Boot
272 * happy, assign a fake PHY address for a XFI port.
273 */
274 fm_info_set_phy_address(FM1_10GEC1, 0);
275 fm_info_set_phy_address(FM1_10GEC2, 1);
276 break;
277 case 0x98:
278 /* XAUI in Slot1 and Slot2 */
279 debug("Set phy address of AMC2PEX-2S for FM1_10GEC1:%x\n",
280 CONFIG_SYS_FM1_10GEC1_PHY_ADDR);
281 fm_info_set_phy_address(FM1_10GEC1,
282 CONFIG_SYS_FM1_10GEC1_PHY_ADDR);
283 debug("Set phy address of AMC2PEX-2S for FM1_10GEC2:%x\n",
284 CONFIG_SYS_FM1_10GEC2_PHY_ADDR);
285 fm_info_set_phy_address(FM1_10GEC2,
286 CONFIG_SYS_FM1_10GEC2_PHY_ADDR);
287 break;
288 case 0x9E:
289 /* XAUI in Slot2 */
290 debug("Sett phy address of AMC2PEX-2S for FM1_10GEC2:%x\n",
291 CONFIG_SYS_FM1_10GEC2_PHY_ADDR);
292 fm_info_set_phy_address(FM1_10GEC2,
293 CONFIG_SYS_FM1_10GEC2_PHY_ADDR);
294 break;
295 default:
296 printf("Fman: Unsupported SerDes2 Protocol 0x%02x\n",
297 serdes2_prtcl);
298 break;
299 }
300
301 /*set PHY address for QSGMII Riser Card on slot2*/
302 bus = miiphy_get_dev_by_name(DEFAULT_FM_MDIO_NAME);
303 qsgmii = is_qsgmii_riser_card(bus, PHY_BASE_ADDR, PORT_NUM, REGNUM);
304
305 if (qsgmii) {
306 switch (serdes2_prtcl) {
307 case 0xb2:
308 case 0x8d:
309 fm_info_set_phy_address(FM1_DTSEC3, PHY_BASE_ADDR);
310 fm_info_set_phy_address(FM1_DTSEC4, PHY_BASE_ADDR + 1);
311 break;
312 default:
313 break;
314 }
315 }
316
317 for (i = FM1_DTSEC1; i < FM1_DTSEC1 + CONFIG_SYS_NUM_FM1_DTSEC; i++) {
318 int idx = i - FM1_DTSEC1;
319
320 switch (fm_info_get_enet_if(i)) {
321 case PHY_INTERFACE_MODE_SGMII:
322 fm_info_set_mdio(i,
323 miiphy_get_dev_by_name(DEFAULT_FM_MDIO_NAME));
324 break;
325 case PHY_INTERFACE_MODE_NONE:
326 fm_info_set_phy_address(i, 0);
327 break;
328 default:
329 printf("Fman1: DTSEC%u set to unknown interface %i\n",
330 idx + 1, fm_info_get_enet_if(i));
331 fm_info_set_phy_address(i, 0);
332 break;
333 }
334 }
335
336 for (i = FM1_10GEC1; i < FM1_10GEC1 + CONFIG_SYS_NUM_FM1_10GEC; i++) {
337 int idx = i - FM1_10GEC1;
338
339 switch (fm_info_get_enet_if(i)) {
340 case PHY_INTERFACE_MODE_XGMII:
341 fm_info_set_mdio(i,
342 miiphy_get_dev_by_name
343 (DEFAULT_FM_TGEC_MDIO_NAME));
344 break;
345 case PHY_INTERFACE_MODE_NONE:
346 fm_info_set_phy_address(i, 0);
347 break;
348 default:
349 printf("Fman1: TGEC%u set to unknown interface %i\n",
350 idx + 1, fm_info_get_enet_if(i));
351 fm_info_set_phy_address(i, 0);
352 break;
353 }
354 }
355
356 cpu_eth_init(bis);
357 #endif
358
359 return pci_eth_init(bis);
360 }
361
board_ft_fman_fixup_port(void * fdt,char * compat,phys_addr_t addr,enum fm_port port,int offset)362 void board_ft_fman_fixup_port(void *fdt, char *compat, phys_addr_t addr,
363 enum fm_port port, int offset)
364 {
365 int phy;
366 char alias[32];
367 struct fixed_link f_link;
368 ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
369 u32 prtcl2 = in_be32(&gur->rcwsr[4]) & FSL_CORENET2_RCWSR4_SRDS2_PRTCL;
370
371 prtcl2 >>= FSL_CORENET2_RCWSR4_SRDS2_PRTCL_SHIFT;
372
373 if (fm_info_get_enet_if(port) == PHY_INTERFACE_MODE_SGMII) {
374 phy = fm_info_get_phy_address(port);
375
376 sprintf(alias, "phy_sgmii_%x", phy);
377 fdt_set_phy_handle(fdt, compat, addr, alias);
378 fdt_status_okay_by_alias(fdt, alias);
379 } else if (fm_info_get_enet_if(port) == PHY_INTERFACE_MODE_XGMII) {
380 /* check if it's XFI interface for 10g */
381 switch (prtcl2) {
382 case 0x80:
383 case 0x81:
384 case 0x82:
385 case 0x83:
386 case 0x84:
387 case 0x85:
388 case 0x86:
389 case 0x87:
390 case 0x88:
391 case 0x89:
392 case 0x8a:
393 case 0x8b:
394 case 0x8c:
395 case 0x8d:
396 case 0x8e:
397 case 0xb1:
398 case 0xb2:
399 f_link.phy_id = port;
400 f_link.duplex = 1;
401 f_link.link_speed = 10000;
402 f_link.pause = 0;
403 f_link.asym_pause = 0;
404
405 fdt_delprop(fdt, offset, "phy-handle");
406 fdt_setprop(fdt, offset, "fixed-link", &f_link,
407 sizeof(f_link));
408 break;
409 case 0x98: /* XAUI interface */
410 strcpy(alias, "phy_xaui_slot1");
411 fdt_status_okay_by_alias(fdt, alias);
412
413 strcpy(alias, "phy_xaui_slot2");
414 fdt_status_okay_by_alias(fdt, alias);
415 break;
416 case 0x9e: /* XAUI interface */
417 case 0x9a:
418 case 0x93:
419 case 0x91:
420 strcpy(alias, "phy_xaui_slot1");
421 fdt_status_okay_by_alias(fdt, alias);
422 break;
423 case 0x97: /* XAUI interface */
424 case 0xc3:
425 strcpy(alias, "phy_xaui_slot2");
426 fdt_status_okay_by_alias(fdt, alias);
427 break;
428 default:
429 break;
430 }
431 }
432 }
433
434 /*
435 * Set status to disabled for unused ethernet node
436 */
fdt_fixup_board_enet(void * fdt)437 void fdt_fixup_board_enet(void *fdt)
438 {
439 int i;
440 char alias[32];
441
442 for (i = FM1_DTSEC1; i <= FM1_10GEC2; i++) {
443 switch (fm_info_get_enet_if(i)) {
444 case PHY_INTERFACE_MODE_NONE:
445 sprintf(alias, "ethernet%u", i);
446 fdt_status_disabled_by_alias(fdt, alias);
447 break;
448 default:
449 break;
450 }
451 }
452 }
453