Merge branch 'async-scsi-resume' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux.git] / arch / arm / mach-shmobile / board-koelsch.c
1 /*
2  * Koelsch board support
3  *
4  * Copyright (C) 2013  Renesas Electronics Corporation
5  * Copyright (C) 2013-2014  Renesas Solutions Corp.
6  * Copyright (C) 2013  Magnus Damm
7  * Copyright (C) 2014  Cogent Embedded, Inc.
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; version 2 of the License.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
21  */
22
23 #include <linux/dma-mapping.h>
24 #include <linux/gpio.h>
25 #include <linux/gpio_keys.h>
26 #include <linux/input.h>
27 #include <linux/irq.h>
28 #include <linux/kernel.h>
29 #include <linux/leds.h>
30 #include <linux/mfd/tmio.h>
31 #include <linux/mmc/host.h>
32 #include <linux/mmc/sh_mobile_sdhi.h>
33 #include <linux/mtd/mtd.h>
34 #include <linux/mtd/partitions.h>
35 #include <linux/phy.h>
36 #include <linux/pinctrl/machine.h>
37 #include <linux/platform_data/gpio-rcar.h>
38 #include <linux/platform_data/rcar-du.h>
39 #include <linux/platform_device.h>
40 #include <linux/regulator/driver.h>
41 #include <linux/regulator/fixed.h>
42 #include <linux/regulator/gpio-regulator.h>
43 #include <linux/regulator/machine.h>
44 #include <linux/sh_eth.h>
45 #include <linux/spi/flash.h>
46 #include <linux/spi/rspi.h>
47 #include <linux/spi/spi.h>
48 #include <mach/common.h>
49 #include <mach/irqs.h>
50 #include <mach/r8a7791.h>
51 #include <mach/rcar-gen2.h>
52 #include <asm/mach-types.h>
53 #include <asm/mach/arch.h>
54
55 /* DU */
56 static struct rcar_du_encoder_data koelsch_du_encoders[] = {
57         {
58                 .type = RCAR_DU_ENCODER_NONE,
59                 .output = RCAR_DU_OUTPUT_LVDS0,
60                 .connector.lvds.panel = {
61                         .width_mm = 210,
62                         .height_mm = 158,
63                         .mode = {
64                                 .clock = 65000,
65                                 .hdisplay = 1024,
66                                 .hsync_start = 1048,
67                                 .hsync_end = 1184,
68                                 .htotal = 1344,
69                                 .vdisplay = 768,
70                                 .vsync_start = 771,
71                                 .vsync_end = 777,
72                                 .vtotal = 806,
73                                 .flags = 0,
74                         },
75                 },
76         },
77 };
78
79 static const struct rcar_du_platform_data koelsch_du_pdata __initconst = {
80         .encoders = koelsch_du_encoders,
81         .num_encoders = ARRAY_SIZE(koelsch_du_encoders),
82 };
83
84 static const struct resource du_resources[] __initconst = {
85         DEFINE_RES_MEM(0xfeb00000, 0x40000),
86         DEFINE_RES_MEM_NAMED(0xfeb90000, 0x1c, "lvds.0"),
87         DEFINE_RES_IRQ(gic_spi(256)),
88         DEFINE_RES_IRQ(gic_spi(268)),
89 };
90
91 static void __init koelsch_add_du_device(void)
92 {
93         struct platform_device_info info = {
94                 .name = "rcar-du-r8a7791",
95                 .id = -1,
96                 .res = du_resources,
97                 .num_res = ARRAY_SIZE(du_resources),
98                 .data = &koelsch_du_pdata,
99                 .size_data = sizeof(koelsch_du_pdata),
100                 .dma_mask = DMA_BIT_MASK(32),
101         };
102
103         platform_device_register_full(&info);
104 }
105
106 /* Ether */
107 static const struct sh_eth_plat_data ether_pdata __initconst = {
108         .phy                    = 0x1,
109         .phy_irq                = irq_pin(0),
110         .edmac_endian           = EDMAC_LITTLE_ENDIAN,
111         .phy_interface          = PHY_INTERFACE_MODE_RMII,
112         .ether_link_active_low  = 1,
113 };
114
115 static const struct resource ether_resources[] __initconst = {
116         DEFINE_RES_MEM(0xee700000, 0x400),
117         DEFINE_RES_IRQ(gic_spi(162)),
118 };
119
120 static const struct platform_device_info ether_info __initconst = {
121         .parent         = &platform_bus,
122         .name           = "r8a7791-ether",
123         .id             = -1,
124         .res            = ether_resources,
125         .num_res        = ARRAY_SIZE(ether_resources),
126         .data           = &ether_pdata,
127         .size_data      = sizeof(ether_pdata),
128         .dma_mask       = DMA_BIT_MASK(32),
129 };
130
131 /* LEDS */
132 static struct gpio_led koelsch_leds[] = {
133         {
134                 .name           = "led8",
135                 .gpio           = RCAR_GP_PIN(2, 21),
136                 .default_state  = LEDS_GPIO_DEFSTATE_ON,
137         }, {
138                 .name           = "led7",
139                 .gpio           = RCAR_GP_PIN(2, 20),
140                 .default_state  = LEDS_GPIO_DEFSTATE_ON,
141         }, {
142                 .name           = "led6",
143                 .gpio           = RCAR_GP_PIN(2, 19),
144                 .default_state  = LEDS_GPIO_DEFSTATE_ON,
145         },
146 };
147
148 static const struct gpio_led_platform_data koelsch_leds_pdata __initconst = {
149         .leds           = koelsch_leds,
150         .num_leds       = ARRAY_SIZE(koelsch_leds),
151 };
152
153 /* GPIO KEY */
154 #define GPIO_KEY(c, g, d, ...) \
155         { .code = c, .gpio = g, .desc = d, .active_low = 1, \
156           .wakeup = 1, .debounce_interval = 20 }
157
158 static struct gpio_keys_button gpio_buttons[] = {
159         GPIO_KEY(KEY_4,         RCAR_GP_PIN(5, 3),      "SW2-pin4"),
160         GPIO_KEY(KEY_3,         RCAR_GP_PIN(5, 2),      "SW2-pin3"),
161         GPIO_KEY(KEY_2,         RCAR_GP_PIN(5, 1),      "SW2-pin2"),
162         GPIO_KEY(KEY_1,         RCAR_GP_PIN(5, 0),      "SW2-pin1"),
163         GPIO_KEY(KEY_G,         RCAR_GP_PIN(7, 6),      "SW36"),
164         GPIO_KEY(KEY_F,         RCAR_GP_PIN(7, 5),      "SW35"),
165         GPIO_KEY(KEY_E,         RCAR_GP_PIN(7, 4),      "SW34"),
166         GPIO_KEY(KEY_D,         RCAR_GP_PIN(7, 3),      "SW33"),
167         GPIO_KEY(KEY_C,         RCAR_GP_PIN(7, 2),      "SW32"),
168         GPIO_KEY(KEY_B,         RCAR_GP_PIN(7, 1),      "SW31"),
169         GPIO_KEY(KEY_A,         RCAR_GP_PIN(7, 0),      "SW30"),
170 };
171
172 static const struct gpio_keys_platform_data koelsch_keys_pdata __initconst = {
173         .buttons        = gpio_buttons,
174         .nbuttons       = ARRAY_SIZE(gpio_buttons),
175 };
176
177 /* QSPI */
178 static const struct resource qspi_resources[] __initconst = {
179         DEFINE_RES_MEM(0xe6b10000, 0x1000),
180         DEFINE_RES_IRQ_NAMED(gic_spi(184), "mux"),
181 };
182
183 static const struct rspi_plat_data qspi_pdata __initconst = {
184         .num_chipselect = 1,
185 };
186
187 /* SPI Flash memory (Spansion S25FL512SAGMFIG11 64 MiB) */
188 static struct mtd_partition spi_flash_part[] = {
189         {
190                 .name           = "loader",
191                 .offset         = 0x00000000,
192                 .size           = 512 * 1024,
193                 .mask_flags     = MTD_WRITEABLE,
194         },
195         {
196                 .name           = "bootenv",
197                 .offset         = MTDPART_OFS_APPEND,
198                 .size           = 512 * 1024,
199                 .mask_flags     = MTD_WRITEABLE,
200         },
201         {
202                 .name           = "data",
203                 .offset         = MTDPART_OFS_APPEND,
204                 .size           = MTDPART_SIZ_FULL,
205         },
206 };
207
208 static const struct flash_platform_data spi_flash_data = {
209         .name           = "m25p80",
210         .parts          = spi_flash_part,
211         .nr_parts       = ARRAY_SIZE(spi_flash_part),
212         .type           = "s25fl512s",
213 };
214
215 static const struct spi_board_info spi_info[] __initconst = {
216         {
217                 .modalias       = "m25p80",
218                 .platform_data  = &spi_flash_data,
219                 .mode           = SPI_MODE_0,
220                 .max_speed_hz   = 30000000,
221                 .bus_num        = 0,
222                 .chip_select    = 0,
223         },
224 };
225
226 /* SATA0 */
227 static const struct resource sata0_resources[] __initconst = {
228         DEFINE_RES_MEM(0xee300000, 0x2000),
229         DEFINE_RES_IRQ(gic_spi(105)),
230 };
231
232 static const struct platform_device_info sata0_info __initconst = {
233         .parent         = &platform_bus,
234         .name           = "sata-r8a7791",
235         .id             = 0,
236         .res            = sata0_resources,
237         .num_res        = ARRAY_SIZE(sata0_resources),
238         .dma_mask       = DMA_BIT_MASK(32),
239 };
240
241 /* I2C */
242 static const struct resource i2c_resources[] __initconst = {
243         /* I2C0 */
244         DEFINE_RES_MEM(0xE6508000, 0x40),
245         DEFINE_RES_IRQ(gic_spi(287)),
246         /* I2C1 */
247         DEFINE_RES_MEM(0xE6518000, 0x40),
248         DEFINE_RES_IRQ(gic_spi(288)),
249         /* I2C2 */
250         DEFINE_RES_MEM(0xE6530000, 0x40),
251         DEFINE_RES_IRQ(gic_spi(286)),
252         /* I2C3 */
253         DEFINE_RES_MEM(0xE6540000, 0x40),
254         DEFINE_RES_IRQ(gic_spi(290)),
255         /* I2C4 */
256         DEFINE_RES_MEM(0xE6520000, 0x40),
257         DEFINE_RES_IRQ(gic_spi(19)),
258         /* I2C5 */
259         DEFINE_RES_MEM(0xE6528000, 0x40),
260         DEFINE_RES_IRQ(gic_spi(20)),
261 };
262
263 static void __init koelsch_add_i2c(unsigned idx)
264 {
265         unsigned res_idx = idx * 2;
266
267         BUG_ON(res_idx >= ARRAY_SIZE(i2c_resources));
268
269         platform_device_register_simple("i2c-rcar_gen2", idx,
270                                         i2c_resources + res_idx, 2);
271 }
272
273 #define SDHI_REGULATOR(idx, vdd_pin, vccq_pin)                          \
274 static struct regulator_consumer_supply vcc_sdhi##idx##_consumer =      \
275         REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi." #idx);               \
276                                                                         \
277 static struct regulator_init_data vcc_sdhi##idx##_init_data = {         \
278         .constraints = {                                                \
279                 .valid_ops_mask = REGULATOR_CHANGE_STATUS,              \
280         },                                                              \
281         .consumer_supplies      = &vcc_sdhi##idx##_consumer,            \
282         .num_consumer_supplies  = 1,                                    \
283 };                                                                      \
284                                                                         \
285 static const struct fixed_voltage_config vcc_sdhi##idx##_info __initconst = {\
286         .supply_name    = "SDHI" #idx "Vcc",                            \
287         .microvolts     = 3300000,                                      \
288         .gpio           = vdd_pin,                                      \
289         .enable_high    = 1,                                            \
290         .init_data      = &vcc_sdhi##idx##_init_data,                   \
291 };                                                                      \
292                                                                         \
293 static struct regulator_consumer_supply vccq_sdhi##idx##_consumer =     \
294         REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi." #idx);              \
295                                                                         \
296 static struct regulator_init_data vccq_sdhi##idx##_init_data = {        \
297         .constraints = {                                                \
298                 .input_uV       = 3300000,                              \
299                 .min_uV         = 1800000,                              \
300                 .max_uV         = 3300000,                              \
301                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |            \
302                                   REGULATOR_CHANGE_STATUS,              \
303         },                                                              \
304         .consumer_supplies      = &vccq_sdhi##idx##_consumer,           \
305         .num_consumer_supplies  = 1,                                    \
306 };                                                                      \
307                                                                         \
308 static struct gpio vccq_sdhi##idx##_gpio =                              \
309         { vccq_pin, GPIOF_OUT_INIT_HIGH, "vccq-sdhi" #idx };            \
310                                                                         \
311 static struct gpio_regulator_state vccq_sdhi##idx##_states[] = {        \
312         { .value = 1800000, .gpios = 0 },                               \
313         { .value = 3300000, .gpios = 1 },                               \
314 };                                                                      \
315                                                                         \
316 static const struct gpio_regulator_config vccq_sdhi##idx##_info __initconst = {\
317         .supply_name    = "vqmmc",                                      \
318         .gpios          = &vccq_sdhi##idx##_gpio,                       \
319         .nr_gpios       = 1,                                            \
320         .states         = vccq_sdhi##idx##_states,                      \
321         .nr_states      = ARRAY_SIZE(vccq_sdhi##idx##_states),          \
322         .type           = REGULATOR_VOLTAGE,                            \
323         .init_data      = &vccq_sdhi##idx##_init_data,                  \
324 };
325
326 SDHI_REGULATOR(0, RCAR_GP_PIN(7, 17), RCAR_GP_PIN(2, 12));
327 SDHI_REGULATOR(1, RCAR_GP_PIN(7, 18), RCAR_GP_PIN(2, 13));
328 SDHI_REGULATOR(2, RCAR_GP_PIN(7, 19), RCAR_GP_PIN(2, 26));
329
330 /* SDHI0 */
331 static struct sh_mobile_sdhi_info sdhi0_info __initdata = {
332         .tmio_caps      = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ |
333                           MMC_CAP_POWER_OFF_CARD,
334         .tmio_caps2     = MMC_CAP2_NO_MULTI_READ,
335         .tmio_flags     = TMIO_MMC_HAS_IDLE_WAIT,
336 };
337
338 static struct resource sdhi0_resources[] __initdata = {
339         DEFINE_RES_MEM(0xee100000, 0x200),
340         DEFINE_RES_IRQ(gic_spi(165)),
341 };
342
343 /* SDHI1 */
344 static struct sh_mobile_sdhi_info sdhi1_info __initdata = {
345         .tmio_caps      = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ |
346                           MMC_CAP_POWER_OFF_CARD,
347         .tmio_caps2     = MMC_CAP2_NO_MULTI_READ,
348         .tmio_flags     = TMIO_MMC_HAS_IDLE_WAIT,
349 };
350
351 static struct resource sdhi1_resources[] __initdata = {
352         DEFINE_RES_MEM(0xee140000, 0x100),
353         DEFINE_RES_IRQ(gic_spi(167)),
354 };
355
356 /* SDHI2 */
357 static struct sh_mobile_sdhi_info sdhi2_info __initdata = {
358         .tmio_caps      = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ |
359                           MMC_CAP_POWER_OFF_CARD,
360         .tmio_caps2     = MMC_CAP2_NO_MULTI_READ,
361         .tmio_flags     = TMIO_MMC_HAS_IDLE_WAIT |
362                           TMIO_MMC_WRPROTECT_DISABLE,
363 };
364
365 static struct resource sdhi2_resources[] __initdata = {
366         DEFINE_RES_MEM(0xee160000, 0x100),
367         DEFINE_RES_IRQ(gic_spi(168)),
368 };
369
370 static const struct pinctrl_map koelsch_pinctrl_map[] = {
371         /* DU */
372         PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7791", "pfc-r8a7791",
373                                   "du_rgb666", "du"),
374         PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7791", "pfc-r8a7791",
375                                   "du_sync", "du"),
376         PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7791", "pfc-r8a7791",
377                                   "du_clk_out_0", "du"),
378         /* Ether */
379         PIN_MAP_MUX_GROUP_DEFAULT("r8a7791-ether", "pfc-r8a7791",
380                                   "eth_link", "eth"),
381         PIN_MAP_MUX_GROUP_DEFAULT("r8a7791-ether", "pfc-r8a7791",
382                                   "eth_mdio", "eth"),
383         PIN_MAP_MUX_GROUP_DEFAULT("r8a7791-ether", "pfc-r8a7791",
384                                   "eth_rmii", "eth"),
385         PIN_MAP_MUX_GROUP_DEFAULT("r8a7791-ether", "pfc-r8a7791",
386                                   "intc_irq0", "intc"),
387         /* QSPI */
388         PIN_MAP_MUX_GROUP_DEFAULT("qspi.0", "pfc-r8a7791",
389                                   "qspi_ctrl", "qspi"),
390         PIN_MAP_MUX_GROUP_DEFAULT("qspi.0", "pfc-r8a7791",
391                                   "qspi_data4", "qspi"),
392         /* SCIF0 (CN19: DEBUG SERIAL0) */
393         PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.6", "pfc-r8a7791",
394                                   "scif0_data_d", "scif0"),
395         /* SCIF1 (CN20: DEBUG SERIAL1) */
396         PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.7", "pfc-r8a7791",
397                                   "scif1_data_d", "scif1"),
398         /* I2C1 */
399         PIN_MAP_MUX_GROUP_DEFAULT("i2c-rcar_gen2.1", "pfc-r8a7791",
400                                   "i2c1_e", "i2c1"),
401         /* I2C2 */
402         PIN_MAP_MUX_GROUP_DEFAULT("i2c-rcar_gen2.2", "pfc-r8a7791",
403                                   "i2c2", "i2c2"),
404         /* I2C4 */
405         PIN_MAP_MUX_GROUP_DEFAULT("i2c-rcar_gen2.4", "pfc-r8a7791",
406                                   "i2c4_c", "i2c4"),
407         /* SDHI0 */
408         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a7791",
409                                   "sdhi0_data4", "sdhi0"),
410         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a7791",
411                                   "sdhi0_ctrl", "sdhi0"),
412         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a7791",
413                                   "sdhi0_cd", "sdhi0"),
414         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a7791",
415                                   "sdhi0_wp", "sdhi0"),
416         /* SDHI2 */
417         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.1", "pfc-r8a7791",
418                                   "sdhi1_data4", "sdhi1"),
419         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.1", "pfc-r8a7791",
420                                   "sdhi1_ctrl", "sdhi1"),
421         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.1", "pfc-r8a7791",
422                                   "sdhi1_cd", "sdhi1"),
423         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.1", "pfc-r8a7791",
424                                   "sdhi1_wp", "sdhi1"),
425         /* SDHI2 */
426         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.2", "pfc-r8a7791",
427                                   "sdhi2_data4", "sdhi2"),
428         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.2", "pfc-r8a7791",
429                                   "sdhi2_ctrl", "sdhi2"),
430         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.2", "pfc-r8a7791",
431                                   "sdhi2_cd", "sdhi2"),
432 };
433
434 static void __init koelsch_add_standard_devices(void)
435 {
436         r8a7791_clock_init();
437         pinctrl_register_mappings(koelsch_pinctrl_map,
438                                   ARRAY_SIZE(koelsch_pinctrl_map));
439         r8a7791_pinmux_init();
440         r8a7791_add_standard_devices();
441         platform_device_register_full(&ether_info);
442         platform_device_register_data(&platform_bus, "leds-gpio", -1,
443                                       &koelsch_leds_pdata,
444                                       sizeof(koelsch_leds_pdata));
445         platform_device_register_data(&platform_bus, "gpio-keys", -1,
446                                       &koelsch_keys_pdata,
447                                       sizeof(koelsch_keys_pdata));
448         platform_device_register_resndata(&platform_bus, "qspi", 0,
449                                           qspi_resources,
450                                           ARRAY_SIZE(qspi_resources),
451                                           &qspi_pdata, sizeof(qspi_pdata));
452         spi_register_board_info(spi_info, ARRAY_SIZE(spi_info));
453
454         koelsch_add_du_device();
455
456         platform_device_register_full(&sata0_info);
457
458         koelsch_add_i2c(1);
459         koelsch_add_i2c(2);
460         koelsch_add_i2c(4);
461         koelsch_add_i2c(5);
462
463         platform_device_register_data(&platform_bus, "reg-fixed-voltage", 0,
464                                       &vcc_sdhi0_info, sizeof(struct fixed_voltage_config));
465         platform_device_register_data(&platform_bus, "reg-fixed-voltage", 1,
466                                       &vcc_sdhi1_info, sizeof(struct fixed_voltage_config));
467         platform_device_register_data(&platform_bus, "reg-fixed-voltage", 2,
468                                       &vcc_sdhi2_info, sizeof(struct fixed_voltage_config));
469         platform_device_register_data(&platform_bus, "gpio-regulator", 0,
470                                       &vccq_sdhi0_info, sizeof(struct gpio_regulator_config));
471         platform_device_register_data(&platform_bus, "gpio-regulator", 1,
472                                       &vccq_sdhi1_info, sizeof(struct gpio_regulator_config));
473         platform_device_register_data(&platform_bus, "gpio-regulator", 2,
474                                       &vccq_sdhi2_info, sizeof(struct gpio_regulator_config));
475
476         platform_device_register_resndata(&platform_bus, "sh_mobile_sdhi", 0,
477                                           sdhi0_resources, ARRAY_SIZE(sdhi0_resources),
478                                           &sdhi0_info, sizeof(struct sh_mobile_sdhi_info));
479
480         platform_device_register_resndata(&platform_bus, "sh_mobile_sdhi", 1,
481                                           sdhi1_resources, ARRAY_SIZE(sdhi1_resources),
482                                           &sdhi1_info, sizeof(struct sh_mobile_sdhi_info));
483
484         platform_device_register_resndata(&platform_bus, "sh_mobile_sdhi", 2,
485                                           sdhi2_resources, ARRAY_SIZE(sdhi2_resources),
486                                           &sdhi2_info, sizeof(struct sh_mobile_sdhi_info));
487
488 }
489
490 /*
491  * Ether LEDs on the Koelsch board are named LINK and ACTIVE which corresponds
492  * to non-default 01 setting of the Micrel KSZ8041 PHY control register 1 bits
493  * 14-15. We have to set them back to 01 from the default 00 value each time
494  * the PHY is reset. It's also important because the PHY's LED0 signal is
495  * connected to SoC's ETH_LINK signal and in the PHY's default mode it will
496  * bounce on and off after each packet, which we apparently want to avoid.
497  */
498 static int koelsch_ksz8041_fixup(struct phy_device *phydev)
499 {
500         u16 phyctrl1 = phy_read(phydev, 0x1e);
501
502         phyctrl1 &= ~0xc000;
503         phyctrl1 |= 0x4000;
504         return phy_write(phydev, 0x1e, phyctrl1);
505 }
506
507 static void __init koelsch_init(void)
508 {
509         koelsch_add_standard_devices();
510
511         irq_set_irq_type(irq_pin(0), IRQ_TYPE_LEVEL_LOW);
512
513         if (IS_ENABLED(CONFIG_PHYLIB))
514                 phy_register_fixup_for_id("r8a7791-ether-ff:01",
515                                           koelsch_ksz8041_fixup);
516 }
517
518 static const char * const koelsch_boards_compat_dt[] __initconst = {
519         "renesas,koelsch",
520         NULL,
521 };
522
523 DT_MACHINE_START(KOELSCH_DT, "koelsch")
524         .smp            = smp_ops(r8a7791_smp_ops),
525         .init_early     = r8a7791_init_early,
526         .init_time      = rcar_gen2_timer_init,
527         .init_machine   = koelsch_init,
528         .init_late      = shmobile_init_late,
529         .dt_compat      = koelsch_boards_compat_dt,
530 MACHINE_END