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1/*
2 * (C) Copyright 2014
3 * Dirk Eibach, Guntermann & Drunck GmbH, eibach@gdsys.de
4 *
5 * SPDX-License-Identifier: GPL-2.0+
6 */
7
8#include <common.h>
9#include <hwconfig.h>
10#include <i2c.h>
11#include <spi.h>
12#include <libfdt.h>
13#include <fdt_support.h>
14#include <pci.h>
15#include <mpc83xx.h>
16#include <fsl_esdhc.h>
17#include <asm/io.h>
18#include <asm/fsl_serdes.h>
19#include <asm/fsl_mpc83xx_serdes.h>
20
21#include "mpc8308.h"
22
23#include <gdsys_fpga.h>
24
d4e58888 25#include "../common/ioep-fpga.h"
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26#include "../common/osd.h"
27#include "../common/mclink.h"
28#include "../common/phy.h"
5c3b6dc1 29#include "../common/fanctrl.h"
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30
31#include <pca953x.h>
32#include <pca9698.h>
33
34#include <miiphy.h>
35
36DECLARE_GLOBAL_DATA_PTR;
37
38#define MAX_MUX_CHANNELS 2
39
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40enum {
41 MCFPGA_DONE = 1 << 0,
42 MCFPGA_INIT_N = 1 << 1,
43 MCFPGA_PROGRAM_N = 1 << 2,
44 MCFPGA_UPDATE_ENABLE_N = 1 << 3,
45 MCFPGA_RESET_N = 1 << 4,
46};
47
48enum {
49 GPIO_MDC = 1 << 14,
50 GPIO_MDIO = 1 << 15,
51};
52
53unsigned int mclink_fpgacount;
54struct ihs_fpga *fpga_ptr[] = CONFIG_SYS_FPGA_PTR;
55
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56struct {
57 u8 bus;
58 u8 addr;
59} hrcon_fans[] = CONFIG_HRCON_FANS;
60
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61int fpga_set_reg(u32 fpga, u16 *reg, off_t regoff, u16 data)
62{
63 int res;
64
65 switch (fpga) {
66 case 0:
67 out_le16(reg, data);
68 break;
69 default:
70 res = mclink_send(fpga - 1, regoff, data);
71 if (res < 0) {
72 printf("mclink_send reg %02lx data %04x returned %d\n",
73 regoff, data, res);
74 return res;
75 }
76 break;
77 }
78
79 return 0;
80}
81
82int fpga_get_reg(u32 fpga, u16 *reg, off_t regoff, u16 *data)
83{
84 int res;
85
86 switch (fpga) {
87 case 0:
88 *data = in_le16(reg);
89 break;
90 default:
91 if (fpga > mclink_fpgacount)
92 return -EINVAL;
93 res = mclink_receive(fpga - 1, regoff, data);
94 if (res < 0) {
95 printf("mclink_receive reg %02lx returned %d\n",
96 regoff, res);
97 return res;
98 }
99 }
100
101 return 0;
102}
103
104int checkboard(void)
105{
00caae6d 106 char *s = env_get("serial#");
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107 bool hw_type_cat = pca9698_get_value(0x20, 20);
108
109 puts("Board: ");
110
111 printf("HRCon %s", hw_type_cat ? "CAT" : "Fiber");
112
113 if (s != NULL) {
114 puts(", serial# ");
115 puts(s);
116 }
117
118 puts("\n");
119
120 return 0;
121}
122
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123int last_stage_init(void)
124{
125 int slaves;
126 unsigned int k;
127 unsigned int mux_ch;
b847f5b6 128 unsigned char mclink_controllers[] = { 0x3c, 0x3d, 0x3e };
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129 u16 fpga_features;
130 bool hw_type_cat = pca9698_get_value(0x20, 20);
131 bool ch0_rgmii2_present = false;
132
133 FPGA_GET_REG(0, fpga_features, &fpga_features);
134
135 /* Turn on Parade DP501 */
136 pca9698_direction_output(0x20, 10, 1);
7ed45d3d 137 pca9698_direction_output(0x20, 11, 1);
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138
139 ch0_rgmii2_present = !pca9698_get_value(0x20, 30);
140
b847f5b6 141 /* wait for FPGA done, then reset FPGA */
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142 for (k = 0; k < ARRAY_SIZE(mclink_controllers); ++k) {
143 unsigned int ctr = 0;
144
145 if (i2c_probe(mclink_controllers[k]))
146 continue;
147
148 while (!(pca953x_get_val(mclink_controllers[k])
149 & MCFPGA_DONE)) {
150 udelay(100000);
151 if (ctr++ > 5) {
152 printf("no done for mclink_controller %d\n", k);
153 break;
154 }
155 }
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156
157 pca953x_set_dir(mclink_controllers[k], MCFPGA_RESET_N, 0);
158 pca953x_set_val(mclink_controllers[k], MCFPGA_RESET_N, 0);
159 udelay(10);
160 pca953x_set_val(mclink_controllers[k], MCFPGA_RESET_N,
161 MCFPGA_RESET_N);
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162 }
163
164 if (hw_type_cat) {
5a49f174
JH
165 int retval;
166 struct mii_dev *mdiodev = mdio_alloc();
167 if (!mdiodev)
168 return -ENOMEM;
169 strncpy(mdiodev->name, bb_miiphy_buses[0].name, MDIO_NAME_LEN);
170 mdiodev->read = bb_miiphy_read;
171 mdiodev->write = bb_miiphy_write;
172
173 retval = mdio_register(mdiodev);
174 if (retval < 0)
175 return retval;
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176 for (mux_ch = 0; mux_ch < MAX_MUX_CHANNELS; ++mux_ch) {
177 if ((mux_ch == 1) && !ch0_rgmii2_present)
178 continue;
179
180 setup_88e1514(bb_miiphy_buses[0].name, mux_ch);
181 }
182 }
183
184 /* give slave-PLLs and Parade DP501 some time to be up and running */
185 udelay(500000);
186
187 mclink_fpgacount = CONFIG_SYS_MCLINK_MAX;
188 slaves = mclink_probe();
189 mclink_fpgacount = 0;
190
d4e58888 191 ioep_fpga_print_info(0);
50dcf89d 192 osd_probe(0);
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193#ifdef CONFIG_SYS_OSD_DH
194 osd_probe(4);
195#endif
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196
197 if (slaves <= 0)
198 return 0;
199
200 mclink_fpgacount = slaves;
201
202 for (k = 1; k <= slaves; ++k) {
203 FPGA_GET_REG(k, fpga_features, &fpga_features);
204
d4e58888 205 ioep_fpga_print_info(k);
50dcf89d 206 osd_probe(k);
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207#ifdef CONFIG_SYS_OSD_DH
208 osd_probe(k + 4);
209#endif
50dcf89d 210 if (hw_type_cat) {
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211 int retval;
212 struct mii_dev *mdiodev = mdio_alloc();
213 if (!mdiodev)
214 return -ENOMEM;
215 strncpy(mdiodev->name, bb_miiphy_buses[k].name,
216 MDIO_NAME_LEN);
217 mdiodev->read = bb_miiphy_read;
218 mdiodev->write = bb_miiphy_write;
219
220 retval = mdio_register(mdiodev);
221 if (retval < 0)
222 return retval;
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223 setup_88e1514(bb_miiphy_buses[k].name, 0);
224 }
225 }
226
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227 for (k = 0; k < ARRAY_SIZE(hrcon_fans); ++k) {
228 i2c_set_bus_num(hrcon_fans[k].bus);
229 init_fan_controller(hrcon_fans[k].addr);
230 }
231
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232 return 0;
233}
234
235/*
7ed45d3d 236 * provide access to fpga gpios and controls (for I2C bitbang)
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237 * (these may look all too simple but make iocon.h much more readable)
238 */
239void fpga_gpio_set(unsigned int bus, int pin)
240{
7ed45d3d 241 FPGA_SET_REG(bus >= 4 ? (bus - 4) : bus, gpio.set, pin);
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242}
243
244void fpga_gpio_clear(unsigned int bus, int pin)
245{
7ed45d3d 246 FPGA_SET_REG(bus >= 4 ? (bus - 4) : bus, gpio.clear, pin);
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247}
248
249int fpga_gpio_get(unsigned int bus, int pin)
250{
251 u16 val;
252
7ed45d3d 253 FPGA_GET_REG(bus >= 4 ? (bus - 4) : bus, gpio.read, &val);
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254
255 return val & pin;
256}
257
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258void fpga_control_set(unsigned int bus, int pin)
259{
260 u16 val;
261
262 FPGA_GET_REG(bus >= 4 ? (bus - 4) : bus, control, &val);
263 FPGA_SET_REG(bus >= 4 ? (bus - 4) : bus, control, val | pin);
264}
265
266void fpga_control_clear(unsigned int bus, int pin)
267{
268 u16 val;
269
270 FPGA_GET_REG(bus >= 4 ? (bus - 4) : bus, control, &val);
271 FPGA_SET_REG(bus >= 4 ? (bus - 4) : bus, control, val & ~pin);
272}
273
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274void mpc8308_init(void)
275{
276 pca9698_direction_output(0x20, 4, 1);
277}
278
279void mpc8308_set_fpga_reset(unsigned state)
280{
281 pca9698_set_value(0x20, 4, state ? 0 : 1);
282}
283
284void mpc8308_setup_hw(void)
285{
286 immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
287
288 /*
289 * set "startup-finished"-gpios
290 */
291 setbits_be32(&immr->gpio[0].dir, (1 << (31-11)) | (1 << (31-12)));
292 setbits_be32(&immr->gpio[0].dat, 1 << (31-12));
293}
294
295int mpc8308_get_fpga_done(unsigned fpga)
296{
297 return pca9698_get_value(0x20, 19);
298}
299
300#ifdef CONFIG_FSL_ESDHC
301int board_mmc_init(bd_t *bd)
302{
303 immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
304 sysconf83xx_t *sysconf = &immr->sysconf;
305
306 /* Enable cache snooping in eSDHC system configuration register */
307 out_be32(&sysconf->sdhccr, 0x02000000);
308
309 return fsl_esdhc_mmc_init(bd);
310}
311#endif
312
313static struct pci_region pcie_regions_0[] = {
314 {
315 .bus_start = CONFIG_SYS_PCIE1_MEM_BASE,
316 .phys_start = CONFIG_SYS_PCIE1_MEM_PHYS,
317 .size = CONFIG_SYS_PCIE1_MEM_SIZE,
318 .flags = PCI_REGION_MEM,
319 },
320 {
321 .bus_start = CONFIG_SYS_PCIE1_IO_BASE,
322 .phys_start = CONFIG_SYS_PCIE1_IO_PHYS,
323 .size = CONFIG_SYS_PCIE1_IO_SIZE,
324 .flags = PCI_REGION_IO,
325 },
326};
327
328void pci_init_board(void)
329{
330 immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
331 sysconf83xx_t *sysconf = &immr->sysconf;
332 law83xx_t *pcie_law = sysconf->pcielaw;
333 struct pci_region *pcie_reg[] = { pcie_regions_0 };
334
335 fsl_setup_serdes(CONFIG_FSL_SERDES1, FSL_SERDES_PROTO_PEX,
336 FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
337
338 /* Deassert the resets in the control register */
339 out_be32(&sysconf->pecr1, 0xE0008000);
340 udelay(2000);
341
342 /* Configure PCI Express Local Access Windows */
343 out_be32(&pcie_law[0].bar, CONFIG_SYS_PCIE1_BASE & LAWBAR_BAR);
344 out_be32(&pcie_law[0].ar, LBLAWAR_EN | LBLAWAR_512MB);
345
346 mpc83xx_pcie_init(1, pcie_reg);
347}
348
349ulong board_flash_get_legacy(ulong base, int banknum, flash_info_t *info)
350{
351 info->portwidth = FLASH_CFI_16BIT;
352 info->chipwidth = FLASH_CFI_BY16;
353 info->interface = FLASH_CFI_X16;
354 return 1;
355}
356
357#if defined(CONFIG_OF_BOARD_SETUP)
e895a4b0 358int ft_board_setup(void *blob, bd_t *bd)
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359{
360 ft_cpu_setup(blob, bd);
a5c289b9 361 fsl_fdt_fixup_dr_usb(blob, bd);
50dcf89d 362 fdt_fixup_esdhc(blob, bd);
e895a4b0
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363
364 return 0;
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365}
366#endif
367
368/*
369 * FPGA MII bitbang implementation
370 */
371
372struct fpga_mii {
373 unsigned fpga;
374 int mdio;
375} fpga_mii[] = {
376 { 0, 1},
377 { 1, 1},
378 { 2, 1},
379 { 3, 1},
380};
381
382static int mii_dummy_init(struct bb_miiphy_bus *bus)
383{
384 return 0;
385}
386
387static int mii_mdio_active(struct bb_miiphy_bus *bus)
388{
389 struct fpga_mii *fpga_mii = bus->priv;
390
391 if (fpga_mii->mdio)
392 FPGA_SET_REG(fpga_mii->fpga, gpio.set, GPIO_MDIO);
393 else
394 FPGA_SET_REG(fpga_mii->fpga, gpio.clear, GPIO_MDIO);
395
396 return 0;
397}
398
399static int mii_mdio_tristate(struct bb_miiphy_bus *bus)
400{
401 struct fpga_mii *fpga_mii = bus->priv;
402
403 FPGA_SET_REG(fpga_mii->fpga, gpio.set, GPIO_MDIO);
404
405 return 0;
406}
407
408static int mii_set_mdio(struct bb_miiphy_bus *bus, int v)
409{
410 struct fpga_mii *fpga_mii = bus->priv;
411
412 if (v)
413 FPGA_SET_REG(fpga_mii->fpga, gpio.set, GPIO_MDIO);
414 else
415 FPGA_SET_REG(fpga_mii->fpga, gpio.clear, GPIO_MDIO);
416
417 fpga_mii->mdio = v;
418
419 return 0;
420}
421
422static int mii_get_mdio(struct bb_miiphy_bus *bus, int *v)
423{
424 u16 gpio;
425 struct fpga_mii *fpga_mii = bus->priv;
426
427 FPGA_GET_REG(fpga_mii->fpga, gpio.read, &gpio);
428
429 *v = ((gpio & GPIO_MDIO) != 0);
430
431 return 0;
432}
433
434static int mii_set_mdc(struct bb_miiphy_bus *bus, int v)
435{
436 struct fpga_mii *fpga_mii = bus->priv;
437
438 if (v)
439 FPGA_SET_REG(fpga_mii->fpga, gpio.set, GPIO_MDC);
440 else
441 FPGA_SET_REG(fpga_mii->fpga, gpio.clear, GPIO_MDC);
442
443 return 0;
444}
445
446static int mii_delay(struct bb_miiphy_bus *bus)
447{
448 udelay(1);
449
450 return 0;
451}
452
453struct bb_miiphy_bus bb_miiphy_buses[] = {
454 {
455 .name = "board0",
456 .init = mii_dummy_init,
457 .mdio_active = mii_mdio_active,
458 .mdio_tristate = mii_mdio_tristate,
459 .set_mdio = mii_set_mdio,
460 .get_mdio = mii_get_mdio,
461 .set_mdc = mii_set_mdc,
462 .delay = mii_delay,
463 .priv = &fpga_mii[0],
464 },
465 {
466 .name = "board1",
467 .init = mii_dummy_init,
468 .mdio_active = mii_mdio_active,
469 .mdio_tristate = mii_mdio_tristate,
470 .set_mdio = mii_set_mdio,
471 .get_mdio = mii_get_mdio,
472 .set_mdc = mii_set_mdc,
473 .delay = mii_delay,
474 .priv = &fpga_mii[1],
475 },
476 {
477 .name = "board2",
478 .init = mii_dummy_init,
479 .mdio_active = mii_mdio_active,
480 .mdio_tristate = mii_mdio_tristate,
481 .set_mdio = mii_set_mdio,
482 .get_mdio = mii_get_mdio,
483 .set_mdc = mii_set_mdc,
484 .delay = mii_delay,
485 .priv = &fpga_mii[2],
486 },
487 {
488 .name = "board3",
489 .init = mii_dummy_init,
490 .mdio_active = mii_mdio_active,
491 .mdio_tristate = mii_mdio_tristate,
492 .set_mdio = mii_set_mdio,
493 .get_mdio = mii_get_mdio,
494 .set_mdc = mii_set_mdc,
495 .delay = mii_delay,
496 .priv = &fpga_mii[3],
497 },
498};
499
500int bb_miiphy_buses_num = sizeof(bb_miiphy_buses) /
501 sizeof(bb_miiphy_buses[0]);