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2915609a
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1/*
2 * Copyright 2009-2011 Freescale Semiconductor, Inc.
3 *
1a459660 4 * SPDX-License-Identifier: GPL-2.0+
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5 */
6
7#include <common.h>
8#include <command.h>
9#include <netdev.h>
10#include <asm/mmu.h>
11#include <asm/processor.h>
12#include <asm/cache.h>
13#include <asm/immap_85xx.h>
14#include <asm/fsl_law.h>
15#include <asm/fsl_ddr_sdram.h>
16#include <asm/fsl_serdes.h>
17#include <asm/fsl_portals.h>
18#include <asm/fsl_liodn.h>
19#include <malloc.h>
20#include <fm_eth.h>
21#include <fsl_mdio.h>
22#include <miiphy.h>
23#include <phy.h>
24
25#include "../common/ngpixis.h"
26#include "../common/fman.h"
27#include <asm/fsl_dtsec.h>
28
29#define EMI_NONE 0xffffffff
30#define EMI_MASK 0xf0000000
31#define EMI1_RGMII 0x0
32#define EMI1_SLOT3 0x80000000 /* bank1 EFGH */
33#define EMI1_SLOT4 0x40000000 /* bank2 ABCD */
34#define EMI1_SLOT5 0xc0000000 /* bank3 ABCD */
35#define EMI2_SLOT4 0x10000000 /* bank2 ABCD */
36#define EMI2_SLOT5 0x30000000 /* bank3 ABCD */
37#define EMI1_MASK 0xc0000000
38#define EMI2_MASK 0x30000000
39
40static int mdio_mux[NUM_FM_PORTS];
41
42static char *mdio_names[16] = {
43 "P4080DS_MDIO0",
44 "P4080DS_MDIO1",
45 NULL,
46 "P4080DS_MDIO3",
47 "P4080DS_MDIO4",
48 NULL, NULL, NULL,
49 "P4080DS_MDIO8",
50 NULL, NULL, NULL,
51 "P4080DS_MDIO12",
52 NULL, NULL, NULL,
53};
54
61fc52b6
TT
55/*
56 * Mapping of all 18 SERDES lanes to board slots. A value of '0' here means
57 * that the mapping must be determined dynamically, or that the lane maps to
58 * something other than a board slot.
59 */
60static u8 lane_to_slot[] = {
61 1, 1, 2, 2, 3, 3, 3, 3, 6, 6, 4, 4, 4, 4, 5, 5, 5, 5
62};
63
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64static char *p4080ds_mdio_name_for_muxval(u32 muxval)
65{
66 return mdio_names[(muxval & EMI_MASK) >> 28];
67}
68
69struct mii_dev *mii_dev_for_muxval(u32 muxval)
70{
71 struct mii_dev *bus;
72 char *name = p4080ds_mdio_name_for_muxval(muxval);
73
74 if (!name) {
75 printf("No bus for muxval %x\n", muxval);
76 return NULL;
77 }
78
79 bus = miiphy_get_dev_by_name(name);
80
81 if (!bus) {
82 printf("No bus by name %s\n", name);
83 return NULL;
84 }
85
86 return bus;
87}
88
a836626c 89#if defined(CONFIG_SYS_P4080_ERRATUM_SERDES9) && defined(CONFIG_PHY_TERANETICS)
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90int board_phy_config(struct phy_device *phydev)
91{
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92 if (phydev->drv->config)
93 phydev->drv->config(phydev);
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94 if (phydev->drv->uid == PHY_UID_TN2020) {
95 unsigned long timeout = 1 * 1000; /* 1 seconds */
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96 enum srds_prtcl device;
97
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98 /*
99 * Wait for the XAUI to come out of reset. This is when it
100 * starts transmitting alignment signals.
101 */
102 while (--timeout) {
103 int reg = phy_read(phydev, MDIO_MMD_PHYXS, MDIO_CTRL1);
104 if (reg < 0) {
105 printf("TN2020: Error reading from PHY at "
106 "address %u\n", phydev->addr);
107 break;
108 }
109 /*
110 * Note that we've never actually seen
111 * MDIO_CTRL1_RESET set to 1.
112 */
113 if ((reg & MDIO_CTRL1_RESET) == 0)
114 break;
115 udelay(1000);
116 }
117
118 if (!timeout) {
119 printf("TN2020: Timeout waiting for PHY at address %u "
120 " to reset.\n", phydev->addr);
121 }
122
2915609a 123 switch (phydev->addr) {
a836626c 124 case CONFIG_SYS_FM1_10GEC1_PHY_ADDR:
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125 device = XAUI_FM1;
126 break;
a836626c 127 case CONFIG_SYS_FM2_10GEC1_PHY_ADDR:
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128 device = XAUI_FM2;
129 break;
130 default:
131 device = NONE;
132 }
133
134 serdes_reset_rx(device);
135 }
136
137 return 0;
138}
139#endif
140
141struct p4080ds_mdio {
142 u32 muxval;
143 struct mii_dev *realbus;
144};
145
146static void p4080ds_mux_mdio(u32 muxval)
147{
148 ccsr_gpio_t *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR);
149 uint gpioval = in_be32(&pgpio->gpdat) & ~(EMI_MASK);
150 gpioval |= muxval;
151
152 out_be32(&pgpio->gpdat, gpioval);
153}
154
155static int p4080ds_mdio_read(struct mii_dev *bus, int addr, int devad,
156 int regnum)
157{
158 struct p4080ds_mdio *priv = bus->priv;
159
160 p4080ds_mux_mdio(priv->muxval);
161
162 return priv->realbus->read(priv->realbus, addr, devad, regnum);
163}
164
165static int p4080ds_mdio_write(struct mii_dev *bus, int addr, int devad,
166 int regnum, u16 value)
167{
168 struct p4080ds_mdio *priv = bus->priv;
169
170 p4080ds_mux_mdio(priv->muxval);
171
172 return priv->realbus->write(priv->realbus, addr, devad, regnum, value);
173}
174
175static int p4080ds_mdio_reset(struct mii_dev *bus)
176{
177 struct p4080ds_mdio *priv = bus->priv;
178
179 return priv->realbus->reset(priv->realbus);
180}
181
182static int p4080ds_mdio_init(char *realbusname, u32 muxval)
183{
184 struct p4080ds_mdio *pmdio;
185 struct mii_dev *bus = mdio_alloc();
186
187 if (!bus) {
188 printf("Failed to allocate P4080DS MDIO bus\n");
189 return -1;
190 }
191
192 pmdio = malloc(sizeof(*pmdio));
193 if (!pmdio) {
194 printf("Failed to allocate P4080DS private data\n");
195 free(bus);
196 return -1;
197 }
198
199 bus->read = p4080ds_mdio_read;
200 bus->write = p4080ds_mdio_write;
201 bus->reset = p4080ds_mdio_reset;
202 sprintf(bus->name, p4080ds_mdio_name_for_muxval(muxval));
203
204 pmdio->realbus = miiphy_get_dev_by_name(realbusname);
205
206 if (!pmdio->realbus) {
207 printf("No bus with name %s\n", realbusname);
208 free(bus);
209 free(pmdio);
210 return -1;
211 }
212
213 pmdio->muxval = muxval;
214 bus->priv = pmdio;
215
216 return mdio_register(bus);
217}
218
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219void board_ft_fman_fixup_port(void *blob, char * prop, phys_addr_t pa,
220 enum fm_port port, int offset)
221{
222 if (mdio_mux[port] == EMI1_RGMII)
223 fdt_set_phy_handle(blob, prop, pa, "phy_rgmii");
224
225 if (mdio_mux[port] == EMI1_SLOT3) {
226 int idx = port - FM2_DTSEC1 + 5;
227 char phy[16];
228
229 sprintf(phy, "phy%d_slot3", idx);
230
231 fdt_set_phy_handle(blob, prop, pa, phy);
232 }
233}
234
235void fdt_fixup_board_enet(void *fdt)
236{
237 int i;
238
239 /*
240 * P4080DS can be configured in many different ways, supporting a number
241 * of combinations of ethernet devices and phy types. In order to
242 * have just one device tree for all of those configurations, we fix up
243 * the tree here. By default, the device tree configures FM1 and FM2
244 * for SGMII, and configures XAUI on both 10G interfaces. So we have
245 * a number of different variables to track:
246 *
247 * 1) Whether the device is configured at all. Whichever devices are
248 * not enabled should be disabled by setting the "status" property
249 * to "disabled".
250 * 2) What the PHY interface is. If this is an RGMII connection,
251 * we should change the "phy-connection-type" property to
252 * "rgmii"
253 * 3) Which PHY is being used. Because the MDIO buses are muxed,
254 * we need to redirect the "phy-handle" property to point at the
255 * PHY on the right slot/bus.
256 */
257
258 /* We've got six MDIO nodes that may or may not need to exist */
2a523f52
SL
259 fdt_status_disabled_by_alias(fdt, "emi1_slot3");
260 fdt_status_disabled_by_alias(fdt, "emi1_slot4");
261 fdt_status_disabled_by_alias(fdt, "emi1_slot5");
262 fdt_status_disabled_by_alias(fdt, "emi2_slot4");
263 fdt_status_disabled_by_alias(fdt, "emi2_slot5");
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264
265 for (i = 0; i < NUM_FM_PORTS; i++) {
266 switch (mdio_mux[i]) {
267 case EMI1_SLOT3:
2a523f52 268 fdt_status_okay_by_alias(fdt, "emi1_slot3");
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269 break;
270 case EMI1_SLOT4:
2a523f52 271 fdt_status_okay_by_alias(fdt, "emi1_slot4");
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272 break;
273 case EMI1_SLOT5:
2a523f52 274 fdt_status_okay_by_alias(fdt, "emi1_slot5");
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275 break;
276 case EMI2_SLOT4:
2a523f52 277 fdt_status_okay_by_alias(fdt, "emi2_slot4");
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278 break;
279 case EMI2_SLOT5:
2a523f52 280 fdt_status_okay_by_alias(fdt, "emi2_slot5");
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281 break;
282 }
283 }
284}
285
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286int board_eth_init(bd_t *bis)
287{
288#ifdef CONFIG_FMAN_ENET
289 ccsr_gpio_t *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR);
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290 int i;
291 struct fsl_pq_mdio_info dtsec_mdio_info;
292 struct tgec_mdio_info tgec_mdio_info;
293
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294 /* Initialize the mdio_mux array so we can recognize empty elements */
295 for (i = 0; i < NUM_FM_PORTS; i++)
296 mdio_mux[i] = EMI_NONE;
297
298 /* The first 4 GPIOs are outputs to control MDIO bus muxing */
299 out_be32(&pgpio->gpdir, EMI_MASK);
300
301 dtsec_mdio_info.regs =
302 (struct tsec_mii_mng *)CONFIG_SYS_FM1_DTSEC1_MDIO_ADDR;
303 dtsec_mdio_info.name = DEFAULT_FM_MDIO_NAME;
304
305 /* Register the 1G MDIO bus */
306 fsl_pq_mdio_init(bis, &dtsec_mdio_info);
307
308 tgec_mdio_info.regs =
309 (struct tgec_mdio_controller *)CONFIG_SYS_FM1_TGEC_MDIO_ADDR;
310 tgec_mdio_info.name = DEFAULT_FM_TGEC_MDIO_NAME;
311
312 /* Register the 10G MDIO bus */
313 fm_tgec_mdio_init(bis, &tgec_mdio_info);
314
315 /* Register the 6 muxing front-ends to the MDIO buses */
316 p4080ds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_RGMII);
317 p4080ds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_SLOT3);
318 p4080ds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_SLOT4);
319 p4080ds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_SLOT5);
320 p4080ds_mdio_init(DEFAULT_FM_TGEC_MDIO_NAME, EMI2_SLOT4);
321 p4080ds_mdio_init(DEFAULT_FM_TGEC_MDIO_NAME, EMI2_SLOT5);
322
323 fm_info_set_phy_address(FM1_DTSEC1, CONFIG_SYS_FM1_DTSEC1_PHY_ADDR);
324 fm_info_set_phy_address(FM1_DTSEC2, CONFIG_SYS_FM1_DTSEC2_PHY_ADDR);
325 fm_info_set_phy_address(FM1_DTSEC3, CONFIG_SYS_FM1_DTSEC3_PHY_ADDR);
326 fm_info_set_phy_address(FM1_DTSEC4, CONFIG_SYS_FM1_DTSEC4_PHY_ADDR);
327 fm_info_set_phy_address(FM1_10GEC1, CONFIG_SYS_FM1_10GEC1_PHY_ADDR);
328
329#if (CONFIG_SYS_NUM_FMAN == 2)
330 fm_info_set_phy_address(FM2_DTSEC1, CONFIG_SYS_FM2_DTSEC1_PHY_ADDR);
331 fm_info_set_phy_address(FM2_DTSEC2, CONFIG_SYS_FM2_DTSEC2_PHY_ADDR);
332 fm_info_set_phy_address(FM2_DTSEC3, CONFIG_SYS_FM2_DTSEC3_PHY_ADDR);
333 fm_info_set_phy_address(FM2_DTSEC4, CONFIG_SYS_FM2_DTSEC4_PHY_ADDR);
334 fm_info_set_phy_address(FM2_10GEC1, CONFIG_SYS_FM2_10GEC1_PHY_ADDR);
335#endif
336
337 for (i = FM1_DTSEC1; i < FM1_DTSEC1 + CONFIG_SYS_NUM_FM1_DTSEC; i++) {
338 int idx = i - FM1_DTSEC1, lane, slot;
339 switch (fm_info_get_enet_if(i)) {
340 case PHY_INTERFACE_MODE_SGMII:
341 lane = serdes_get_first_lane(SGMII_FM1_DTSEC1 + idx);
342 if (lane < 0)
343 break;
344 slot = lane_to_slot[lane];
345 switch (slot) {
61fc52b6 346 case 3:
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347 mdio_mux[i] = EMI1_SLOT3;
348 fm_info_set_mdio(i,
349 mii_dev_for_muxval(mdio_mux[i]));
350 break;
61fc52b6 351 case 4:
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352 mdio_mux[i] = EMI1_SLOT4;
353 fm_info_set_mdio(i,
354 mii_dev_for_muxval(mdio_mux[i]));
355 break;
61fc52b6 356 case 5:
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357 mdio_mux[i] = EMI1_SLOT5;
358 fm_info_set_mdio(i,
359 mii_dev_for_muxval(mdio_mux[i]));
360 break;
361 };
362 break;
363 case PHY_INTERFACE_MODE_RGMII:
364 fm_info_set_phy_address(i, 0);
365 mdio_mux[i] = EMI1_RGMII;
366 fm_info_set_mdio(i,
367 mii_dev_for_muxval(mdio_mux[i]));
368 break;
369 default:
370 break;
371 }
372 }
373
374 for (i = FM1_10GEC1; i < FM1_10GEC1 + CONFIG_SYS_NUM_FM1_10GEC; i++) {
375 int idx = i - FM1_10GEC1, lane, slot;
376 switch (fm_info_get_enet_if(i)) {
377 case PHY_INTERFACE_MODE_XGMII:
378 lane = serdes_get_first_lane(XAUI_FM1 + idx);
379 if (lane < 0)
380 break;
381 slot = lane_to_slot[lane];
382 switch (slot) {
61fc52b6 383 case 4:
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384 mdio_mux[i] = EMI2_SLOT4;
385 fm_info_set_mdio(i,
386 mii_dev_for_muxval(mdio_mux[i]));
387 break;
61fc52b6 388 case 5:
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389 mdio_mux[i] = EMI2_SLOT5;
390 fm_info_set_mdio(i,
391 mii_dev_for_muxval(mdio_mux[i]));
392 break;
393 };
394 break;
395 default:
396 break;
397 }
398 }
399
400#if (CONFIG_SYS_NUM_FMAN == 2)
401 for (i = FM2_DTSEC1; i < FM2_DTSEC1 + CONFIG_SYS_NUM_FM2_DTSEC; i++) {
402 int idx = i - FM2_DTSEC1, lane, slot;
403 switch (fm_info_get_enet_if(i)) {
404 case PHY_INTERFACE_MODE_SGMII:
405 lane = serdes_get_first_lane(SGMII_FM2_DTSEC1 + idx);
406 if (lane < 0)
407 break;
408 slot = lane_to_slot[lane];
409 switch (slot) {
61fc52b6 410 case 3:
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411 mdio_mux[i] = EMI1_SLOT3;
412 fm_info_set_mdio(i,
413 mii_dev_for_muxval(mdio_mux[i]));
414 break;
61fc52b6 415 case 4:
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416 mdio_mux[i] = EMI1_SLOT4;
417 fm_info_set_mdio(i,
418 mii_dev_for_muxval(mdio_mux[i]));
419 break;
61fc52b6 420 case 5:
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421 mdio_mux[i] = EMI1_SLOT5;
422 fm_info_set_mdio(i,
423 mii_dev_for_muxval(mdio_mux[i]));
424 break;
425 };
426 break;
427 case PHY_INTERFACE_MODE_RGMII:
428 fm_info_set_phy_address(i, 0);
429 mdio_mux[i] = EMI1_RGMII;
430 fm_info_set_mdio(i,
431 mii_dev_for_muxval(mdio_mux[i]));
432 break;
433 default:
434 break;
435 }
436 }
437
438 for (i = FM2_10GEC1; i < FM2_10GEC1 + CONFIG_SYS_NUM_FM2_10GEC; i++) {
439 int idx = i - FM2_10GEC1, lane, slot;
440 switch (fm_info_get_enet_if(i)) {
441 case PHY_INTERFACE_MODE_XGMII:
442 lane = serdes_get_first_lane(XAUI_FM2 + idx);
443 if (lane < 0)
444 break;
445 slot = lane_to_slot[lane];
446 switch (slot) {
61fc52b6 447 case 4:
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448 mdio_mux[i] = EMI2_SLOT4;
449 fm_info_set_mdio(i,
450 mii_dev_for_muxval(mdio_mux[i]));
451 break;
61fc52b6 452 case 5:
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453 mdio_mux[i] = EMI2_SLOT5;
454 fm_info_set_mdio(i,
455 mii_dev_for_muxval(mdio_mux[i]));
456 break;
457 };
458 break;
459 default:
460 break;
461 }
462 }
463#endif
464
465 cpu_eth_init(bis);
466#endif /* CONFIG_FMAN_ENET */
467
468 return pci_eth_init(bis);
469}