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