summaryrefslogtreecommitdiff
path: root/board/fizz/board.c
blob: 940caeae37771d69f5cd2907047e88f47deab7a2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
/* Copyright 2017 The Chromium OS Authors. All rights reserved.
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

/* Fizz board-specific configuration */

#include "adc.h"
#include "adc_chip.h"
#include "als.h"
#include "battery.h"
#include "bd99992gw.h"
#include "board_config.h"
#include "button.h"
#include "charge_manager.h"
#include "charge_state.h"
#include "charger.h"
#include "chipset.h"
#include "console.h"
#include "driver/pmic_tps650x30.h"
#include "driver/temp_sensor/tmp432.h"
#include "driver/tcpm/ps8xxx.h"
#include "driver/tcpm/tcpci.h"
#include "driver/tcpm/tcpm.h"
#include "espi.h"
#include "extpower.h"
#include "espi.h"
#include "fan.h"
#include "fan_chip.h"
#include "gpio.h"
#include "hooks.h"
#include "host_command.h"
#include "i2c.h"
#include "math_util.h"
#include "pi3usb9281.h"
#include "power.h"
#include "power_button.h"
#include "pwm.h"
#include "pwm_chip.h"
#include "spi.h"
#include "switch.h"
#include "system.h"
#include "task.h"
#include "temp_sensor.h"
#include "timer.h"
#include "uart.h"
#include "usb_charge.h"
#include "usb_mux.h"
#include "usb_pd.h"
#include "usb_pd_tcpm.h"
#include "util.h"

#define CPRINTS(format, args...) cprints(CC_USBCHARGE, format, ## args)
#define CPRINTF(format, args...) cprintf(CC_USBCHARGE, format, ## args)

static void tcpc_alert_event(enum gpio_signal signal)
{
	if (!gpio_get_level(GPIO_USB_C0_PD_RST_ODL))
		return;

#ifdef HAS_TASK_PDCMD
	/* Exchange status with TCPCs */
	host_command_pd_send_status(PD_CHARGE_NO_CHANGE);
#endif
}

#define ADP_DEBOUNCE_MS		1000  /* Debounce time for BJ plug/unplug */
/*
 * ADP_IN pin state. It's initialized to 1 (=unplugged) because the IRQ won't
 * be triggered if BJ is the power source.
 */
static int adp_in_state = 1;

static void adp_in_deferred(void)
{
	/* TODO: Switch power source from USB-C to BJ only if we're in S5. */
	struct charge_port_info cpi;
	int level = gpio_get_level(GPIO_ADP_IN_L);

	/* Debounce */
	if (level == adp_in_state)
		return;
	/* High = unplugged. Low = plugged. TODO: Set appropriate voltage. */
	cpi.voltage = level ? 0 : 19000;
	/* Set to 0 to ensure charge manager will ignore it. */
	cpi.current = 0;
	charge_manager_update_charge(CHARGE_SUPPLIER_DEDICATED, 1, &cpi);
	/*
	 * Explicitly notifies the host that BJ is plugged or unplugged
	 * (when running on a type-c adapter).
	 */
	pd_send_host_event(PD_EVENT_POWER_CHANGE);
	adp_in_state = level;
}
DECLARE_DEFERRED(adp_in_deferred);

/* IRQ for BJ plug/unplug. It shouldn't be called if BJ is the power source. */
void adp_in(enum gpio_signal signal)
{
	if (adp_in_state == gpio_get_level(GPIO_ADP_IN_L))
		return;
	hook_call_deferred(&adp_in_deferred_data, ADP_DEBOUNCE_MS * MSEC);
}

void vbus0_evt(enum gpio_signal signal)
{
	task_wake(TASK_ID_PD_C0);
}

#include "gpio_list.h"

/* power signal list.  Must match order of enum power_signal. */
const struct power_signal_info power_signal_list[] = {
	{GPIO_PCH_SLP_S0_L,	POWER_SIGNAL_ACTIVE_HIGH, "SLP_S0_DEASSERTED"},
#ifdef CONFIG_ESPI_VW_SIGNALS
	{VW_SLP_S3_L,		POWER_SIGNAL_ACTIVE_HIGH, "SLP_S3_DEASSERTED"},
	{VW_SLP_S4_L,		POWER_SIGNAL_ACTIVE_HIGH, "SLP_S4_DEASSERTED"},
#else
	{GPIO_PCH_SLP_S3_L,	POWER_SIGNAL_ACTIVE_HIGH, "SLP_S3_DEASSERTED"},
	{GPIO_PCH_SLP_S4_L,	POWER_SIGNAL_ACTIVE_HIGH, "SLP_S4_DEASSERTED"},
#endif
	{GPIO_PCH_SLP_SUS_L,	POWER_SIGNAL_ACTIVE_HIGH, "SLP_SUS_DEASSERTED"},
	{GPIO_RSMRST_L_PGOOD,	POWER_SIGNAL_ACTIVE_HIGH, "RSMRST_L_PGOOD"},
	{GPIO_PMIC_DPWROK,	POWER_SIGNAL_ACTIVE_HIGH, "PMIC_DPWROK"},
};
BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT);

/* Hibernate wake configuration */
const enum gpio_signal hibernate_wake_pins[] = {
	GPIO_POWER_BUTTON_L,
};
const int hibernate_wake_pins_used = ARRAY_SIZE(hibernate_wake_pins);

/* ADC channels */
const struct adc_t adc_channels[] = {
	/* Vbus sensing (1/10 voltage divider). */
	[ADC_VBUS] = {"VBUS", NPCX_ADC_CH2, ADC_MAX_VOLT*10, ADC_READ_MAX+1, 0},
	/*
	 * Adapter current output or battery charging/discharging current (uV)
	 * 18x amplification on charger side.
	 */
	[ADC_AMON_BMON] = {"AMON_BMON", NPCX_ADC_CH1, ADC_MAX_VOLT*1000/18,
			   ADC_READ_MAX+1, 0},
};
BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);

/******************************************************************************/
/* Physical fans. These are logically separate from pwm_channels. */
const struct fan_t fans[] = {
	[FAN_CH_0] = {
		.flags = FAN_USE_RPM_MODE,
		.rpm_min = 1000,
		.rpm_start = 1000,
		.rpm_max = 5500,
		.ch = MFT_CH_0,	/* Use MFT id to control fan */
		.pgood_gpio = -1,
		.enable_gpio = GPIO_FAN_PWR_EN,
	},
};
BUILD_ASSERT(ARRAY_SIZE(fans) == FAN_CH_COUNT);

/******************************************************************************/
/* MFT channels. These are logically separate from pwm_channels. */
const struct mft_t mft_channels[] = {
	[MFT_CH_0] = {NPCX_MFT_MODULE_2, TCKC_LFCLK, PWM_CH_FAN},
};
BUILD_ASSERT(ARRAY_SIZE(mft_channels) == MFT_CH_COUNT);

/* I2C port map */
const struct i2c_port_t i2c_ports[]  = {
	{"tcpc", NPCX_I2C_PORT0_0, 400, GPIO_I2C0_0_SCL, GPIO_I2C0_0_SDA},
	{"eeprom", NPCX_I2C_PORT0_1, 400, GPIO_I2C0_1_SCL, GPIO_I2C0_1_SDA},
	{"charger", NPCX_I2C_PORT1, 100, GPIO_I2C1_SCL, GPIO_I2C1_SDA},
	{"pmic", NPCX_I2C_PORT2, 400, GPIO_I2C2_SCL, GPIO_I2C2_SDA},
	{"thermal", NPCX_I2C_PORT3, 400, GPIO_I2C3_SCL, GPIO_I2C3_SDA},
};
const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);

/* TCPC mux configuration */
const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_COUNT] = {
	{NPCX_I2C_PORT0_0, I2C_ADDR_TCPC0, &ps8xxx_tcpm_drv,
			TCPC_ALERT_ACTIVE_LOW},
};

struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_COUNT] = {
	{
		.port_addr = 0,
		.driver = &tcpci_tcpm_usb_mux_driver,
		.hpd_update = &ps8xxx_tcpc_update_hpd_status,
	}
};

const int usb_port_enable[USB_PORT_COUNT] = {
	GPIO_USB1_ENABLE,
	GPIO_USB2_ENABLE,
	GPIO_USB3_ENABLE,
	GPIO_USB4_ENABLE,
	GPIO_USB5_ENABLE,
};

void board_reset_pd_mcu(void)
{
	gpio_set_level(GPIO_USB_C0_PD_RST_ODL, 0);
	msleep(1);
	gpio_set_level(GPIO_USB_C0_PD_RST_ODL, 1);
}

void board_tcpc_init(void)
{
	int port, reg;

	/* Only reset TCPC if not sysjump */
	if (!system_jumped_to_this_image()) {
		/* Power on PS8751 */
		gpio_set_level(GPIO_PP3300_USB_PD, 1);
		/* TODO(crosbug.com/p/61098): How long do we need to wait? */
		msleep(10);
		board_reset_pd_mcu();
	}

	/*
	 * Wake up PS8751. If PS8751 remains in low power mode after sysjump,
	 * TCPM_INIT will fail due to not able to access PS8751.
	 * Note PS8751 A3 will wake on any I2C access.
	 */
	i2c_read8(I2C_PORT_TCPC0, I2C_ADDR_TCPC0, 0xA0, &reg);

	/* Enable TCPC interrupts */
	gpio_enable_interrupt(GPIO_USB_C0_PD_INT_ODL);

	/*
	 * Initialize HPD to low; after sysjump SOC needs to see
	 * HPD pulse to enable video path
	 */
	for (port = 0; port < CONFIG_USB_PD_PORT_COUNT; port++) {
		const struct usb_mux *mux = &usb_muxes[port];
		mux->hpd_update(port, 0, 0);
	}
}
DECLARE_HOOK(HOOK_INIT, board_tcpc_init, HOOK_PRIO_INIT_I2C+1);

uint16_t tcpc_get_alert_status(void)
{
	uint16_t status = 0;

	if (!gpio_get_level(GPIO_USB_C0_PD_INT_ODL)) {
		if (gpio_get_level(GPIO_USB_C0_PD_RST_ODL))
			status |= PD_STATUS_TCPC_ALERT_0;
	}

	return status;
}

/*
 * Temperature sensors data; must be in same order as enum temp_sensor_id.
 * Sensor index and name must match those present in coreboot:
 *     src/mainboard/google/${board}/acpi/dptf.asl
 */
const struct temp_sensor_t temp_sensors[] = {
	{"TMP432_Internal", TEMP_SENSOR_TYPE_BOARD, tmp432_get_val,
			TMP432_IDX_LOCAL, 4},
	{"TMP432_Sensor_1", TEMP_SENSOR_TYPE_BOARD, tmp432_get_val,
			TMP432_IDX_REMOTE1, 4},
	{"TMP432_Sensor_2", TEMP_SENSOR_TYPE_BOARD, tmp432_get_val,
			TMP432_IDX_REMOTE2, 4},
};
BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT);

/*
 * Thermal limits for each temp sensor.  All temps are in degrees K.  Must be in
 * same order as enum temp_sensor_id.  To always ignore any temp, use 0.
 */
struct ec_thermal_config thermal_params[] = {
	/* {Twarn, Thigh, Thalt}, fan_off, fan_max */
	{{0, 0, 0}, C_TO_K(35), C_TO_K(68)},	/* TMP432_Internal */
	{{0, 0, 0}, 0, 0},	/* TMP432_Sensor_1 */
	{{0, 0, 0}, 0, 0},	/* TMP432_Sensor_2 */
};
BUILD_ASSERT(ARRAY_SIZE(thermal_params) == TEMP_SENSOR_COUNT);

/* Initialize PMIC */
#define I2C_PMIC_READ(reg, data) \
		i2c_read8(I2C_PORT_PMIC, TPS650X30_I2C_ADDR1, (reg), (data))

#define I2C_PMIC_WRITE(reg, data) \
		i2c_write8(I2C_PORT_PMIC, TPS650X30_I2C_ADDR1, (reg), (data))

static void board_pmic_init(void)
{
	int err;
	int error_count = 0;
	static uint8_t pmic_initialized = 0;

	if (pmic_initialized)
		return;

	/* Read vendor ID */
	while (1) {
		int data;
		err = I2C_PMIC_READ(TPS650X30_REG_VENDORID, &data);
		if (!err && data == TPS650X30_VENDOR_ID)
			break;
		else if (error_count > 5)
			goto pmic_error;
		error_count++;
	}

	/*
	 * VCCIOCNT register setting
	 * [6] : CSDECAYEN
	 * otherbits: default
	 */
	err = I2C_PMIC_WRITE(TPS650X30_REG_VCCIOCNT, 0x4A);
	if (err)
		goto pmic_error;

	/*
	 * VRMODECTRL:
	 * [4] : VCCIOLPM clear
	 * otherbits: default
	 */
	err = I2C_PMIC_WRITE(TPS650X30_REG_VRMODECTRL, 0x2F);
	if (err)
		goto pmic_error;

	/*
	 * PGMASK1 : Exclude VCCIO from Power Good Tree
	 * [7] : MVCCIOPG clear
	 * otherbits: default
	 */
	err = I2C_PMIC_WRITE(TPS650X30_REG_PGMASK1, 0x80);
	if (err)
		goto pmic_error;

	/*
	 * PWFAULT_MASK1 Register settings
	 * [7] : 1b V4 Power Fault Masked
	 * [4] : 1b V7 Power Fault Masked
	 * [2] : 1b V9 Power Fault Masked
	 * [0] : 1b V13 Power Fault Masked
	 */
	err = I2C_PMIC_WRITE(TPS650X30_REG_PWFAULT_MASK1, 0x95);
	if (err)
		goto pmic_error;

	/*
	 * Discharge control 4 register configuration
	 * [7:6] : 00b Reserved
	 * [5:4] : 01b V3.3S discharge resistance (V6S), 100 Ohm
	 * [3:2] : 01b V18S discharge resistance (V8S), 100 Ohm
	 * [1:0] : 01b V100S discharge resistance (V11S), 100 Ohm
	 */
	err = I2C_PMIC_WRITE(TPS650X30_REG_DISCHCNT4, 0x15);
	if (err)
		goto pmic_error;

	/*
	 * Discharge control 3 register configuration
	 * [7:6] : 01b V1.8U_2.5U discharge resistance (V9), 100 Ohm
	 * [5:4] : 01b V1.2U discharge resistance (V10), 100 Ohm
	 * [3:2] : 01b V100A discharge resistance (V11), 100 Ohm
	 * [1:0] : 01b V085A discharge resistance (V12), 100 Ohm
	 */
	err = I2C_PMIC_WRITE(TPS650X30_REG_DISCHCNT3, 0x55);
	if (err)
		goto pmic_error;

	/*
	 * Discharge control 2 register configuration
	 * [7:6] : 01b V5ADS3 discharge resistance (V5), 100 Ohm
	 * [5:4] : 01b V33A_DSW discharge resistance (V6), 100 Ohm
	 * [3:2] : 01b V33PCH discharge resistance (V7), 100 Ohm
	 * [1:0] : 01b V18A discharge resistance (V8), 100 Ohm
	 */
	err = I2C_PMIC_WRITE(TPS650X30_REG_DISCHCNT2, 0x55);
	if (err)
		goto pmic_error;

	/*
	 * Discharge control 1 register configuration
	 * [7:2] : 00b Reserved
	 * [1:0] : 01b VCCIO discharge resistance (V4), 100 Ohm
	 */
	err = I2C_PMIC_WRITE(TPS650X30_REG_DISCHCNT1, 0x01);
	if (err)
		goto pmic_error;

	/*
	 * Increase Voltage
	 *  [7:0] : 0x2a default
	 *  [5:4] : 10b default
	 *  [5:4] : 01b 5.1V (0x1a)
	 */
	err = I2C_PMIC_WRITE(TPS650X30_REG_V5ADS3CNT, 0x1a);
	if (err)
		goto pmic_error;

	/*
	 * PBCONFIG Register configuration
	 *   [7] :      1b Power button debounce, 0ms (no debounce)
	 *   [6] :      0b Power button reset timer logic, no action (default)
	 * [5:0] : 011111b Force an Emergency reset time, 31s (default)
	 */
	err = I2C_PMIC_WRITE(TPS650X30_REG_PBCONFIG, 0x9F);
	if (err)
		goto pmic_error;

	CPRINTS("PMIC init done");
	pmic_initialized = 1;
	return;

pmic_error:
	CPRINTS("PMIC init failed");
}

static void chipset_pre_init(void)
{
	board_pmic_init();
}
DECLARE_HOOK(HOOK_CHIPSET_PRE_INIT, chipset_pre_init, HOOK_PRIO_DEFAULT);

/**
 * Notify the AC presence GPIO to the PCH.
 */
static void board_extpower(void)
{
	gpio_set_level(GPIO_PCH_ACPRESENT, extpower_is_present());
}
DECLARE_HOOK(HOOK_AC_CHANGE, board_extpower, HOOK_PRIO_DEFAULT);

/* Initialize board. */
static void board_init(void)
{
	/* Provide AC status to the PCH */
	board_extpower();

	gpio_enable_interrupt(GPIO_USB_C0_VBUS_WAKE_L);
}
DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);

void board_set_charge_limit(int port, int supplier, int charge_ma,
			    int max_ma, int charge_mv)
{
	/* Turn on/off power shortage alert. Performs the same check as
	 * system_can_boot_ap(). It's repeated here because charge_manager
	 * hasn't updated charge_current/voltage when board_set_charge_limit
	 * is called. */
	led_alert(charge_ma * charge_mv <
			CONFIG_CHARGER_LIMIT_POWER_THRESH_CHG_MW * 1000);

	/*
	 * We have two FETs connected to two registers: PR257 & PR258.
	 * These control thresholds of the over current monitoring system.
	 *
	 *                              PR257, PR258
	 * For 4.62A (90W BJ adapter),     on,   off
	 * For 3.33A (65W BJ adapter),    off,    on
	 * For 3.00A (Type-C adapter),    off,   off
	 *
	 * The over current monitoring system doesn't support less than 3A
	 * (e.g. 2.25A, 2.00A). These current most likely won't be enough to
	 * power the system. However, if they're needed, EC can monitor
	 * PMON_PSYS and trigger H_PROCHOT by itself.
	 */
	if (charge_ma >= 4620) {
		gpio_set_level(GPIO_U42_P, 1);
		gpio_set_level(GPIO_U22_C, 0);
	} else if (charge_ma >= 3330) {
		gpio_set_level(GPIO_U42_P, 0);
		gpio_set_level(GPIO_U22_C, 1);
	} else if (charge_ma >= 3000) {
		gpio_set_level(GPIO_U42_P, 0);
		gpio_set_level(GPIO_U22_C, 0);
	} else {
		/* TODO(http://crosbug.com/p/65013352) */
		CPRINTS("Current %dmA not supported", charge_ma);
	}
}

const struct button_config buttons[CONFIG_BUTTON_COUNT] = {
	[BUTTON_RECOVERY] = {
		.name = "Recovery",
		.type = KEYBOARD_BUTTON_RECOVERY,
		.gpio = GPIO_RECOVERY_L,
		.debounce_us = 30 * MSEC,
		.flags = 0,
	},
};

const struct button_config *recovery_buttons[] = {
	&buttons[BUTTON_RECOVERY],
};
const int recovery_buttons_count = ARRAY_SIZE(recovery_buttons);

enum battery_present battery_is_present(void)
{
	/* The GPIO is low when the battery is present */
	return BP_NO;
}

int64_t get_time_dsw_pwrok(void)
{
	/* DSW_PWROK is turned on before EC was powered. */
	return -20 * MSEC;
}

int board_has_working_reset_flags(void)
{
	int version = system_get_board_version();

	/* Board Rev0 will lose reset flags on power cycle. */
	if (version == 0)
		return 0;

	/* All other board versions should have working reset flags */
	return 1;
}

const struct pwm_t pwm_channels[] = {
	[PWM_CH_LED_RED]   = { 3, PWM_CONFIG_DSLEEP, 100 },
	[PWM_CH_LED_GREEN] = { 5, PWM_CONFIG_DSLEEP, 100 },
	[PWM_CH_FAN] = {4, PWM_CONFIG_OPEN_DRAIN, 25000},
};
BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT);