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
|
/* Copyright 2020 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.
*/
/* Volteer board-specific configuration */
#include "button.h"
#include "common.h"
#include "accelgyro.h"
#include "cbi_ec_fw_config.h"
#include "driver/accel_bma2x2.h"
#include "driver/accelgyro_bmi260.h"
#include "driver/ppc/syv682x.h"
#include "driver/retimer/bb_retimer.h"
#include "driver/tcpm/ps8xxx.h"
#include "driver/tcpm/tcpci.h"
#include "extpower.h"
#include "fan.h"
#include "fan_chip.h"
#include "gpio.h"
#include "hooks.h"
#include "lid_switch.h"
#include "power.h"
#include "power_button.h"
#include "pwm.h"
#include "pwm_chip.h"
#include "switch.h"
#include "system.h"
#include "task.h"
#include "tablet_mode.h"
#include "throttle_ap.h"
#include "uart.h"
#include "usb_pd_tbt.h"
#include "usbc_ppc.h"
#include "util.h"
#include "gpio_list.h" /* Must come after other header files. */
#define CPRINTS(format, args...) cprints(CC_CHIPSET, format, ## args)
/*
* FW_CONFIG defaults for Delbin if the CBI data is not initialized.
*/
union volteer_cbi_fw_config fw_config_defaults = {
.usb_db = DB_USB3_ACTIVE,
};
static void board_init(void)
{
}
DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
__override enum tbt_compat_cable_speed board_get_max_tbt_speed(int port)
{
enum ec_cfg_usb_db_type usb_db = ec_cfg_usb_db_type();
if (port == USBC_PORT_C1) {
if (usb_db == DB_USB4_GEN2) {
/*
* Older boards violate 205mm trace length prior
* to connection to the re-timer and only support up
* to GEN2 speeds.
*/
return TBT_SS_U32_GEN1_GEN2;
} else if (usb_db == DB_USB4_GEN3) {
return TBT_SS_TBT_GEN3;
}
}
/*
* Thunderbolt-compatible mode not supported
*
* TODO (b/147726366): All the USB-C ports need to support same speed.
* Need to fix once USB-C feature set is known for Volteer.
*/
return TBT_SS_RES_0;
}
__override bool board_is_tbt_usb4_port(int port)
{
enum ec_cfg_usb_db_type usb_db = ec_cfg_usb_db_type();
/*
* Volteer reference design only supports TBT & USB4 on port 1
* if the USB4 DB is present.
*
* TODO (b/147732807): All the USB-C ports need to support same
* features. Need to fix once USB-C feature set is known for Volteer.
*/
return ((port == USBC_PORT_C1)
&& ((usb_db == DB_USB4_GEN2) || (usb_db == DB_USB4_GEN3)));
}
/******************************************************************************/
/* Physical fans. These are logically separate from pwm_channels. */
const struct fan_conf fan_conf_0 = {
.flags = FAN_USE_RPM_MODE,
.ch = MFT_CH_0, /* Use MFT id to control fan */
.pgood_gpio = -1,
.enable_gpio = GPIO_EN_PP5000_FAN,
};
/*
* Fan specs from datasheet:
* Max speed 5900 rpm (+/- 7%), minimum duty cycle 30%.
* Minimum speed not specified by RPM. Set minimum RPM to max speed (with
* margin) x 30%.
* 5900 x 1.07 x 0.30 = 1894, round up to 1900
*/
const struct fan_rpm fan_rpm_0 = {
.rpm_min = 1900,
.rpm_start = 1900,
.rpm_max = 5900,
};
const struct fan_t fans[FAN_CH_COUNT] = {
[FAN_CH_0] = {
.conf = &fan_conf_0,
.rpm = &fan_rpm_0,
},
};
/******************************************************************************/
/* MFT channels. These are logically separate from pwm_channels. */
const struct mft_t mft_channels[] = {
[MFT_CH_0] = {
.module = NPCX_MFT_MODULE_1,
.clk_src = TCKC_LFCLK,
.pwm_id = PWM_CH_FAN,
},
};
BUILD_ASSERT(ARRAY_SIZE(mft_channels) == MFT_CH_COUNT);
/******************************************************************************/
/* I2C port map configuration */
const struct i2c_port_t i2c_ports[] = {
{
.name = "sensor",
.port = I2C_PORT_SENSOR,
.kbps = 400,
.scl = GPIO_EC_I2C0_SENSOR_SCL,
.sda = GPIO_EC_I2C0_SENSOR_SDA,
},
{
.name = "usb_c0",
.port = I2C_PORT_USB_C0,
.kbps = 1000,
.scl = GPIO_EC_I2C1_USB_C0_SCL,
.sda = GPIO_EC_I2C1_USB_C0_SDA,
},
{
.name = "usb_c1",
.port = I2C_PORT_USB_C1,
.kbps = 1000,
.scl = GPIO_EC_I2C2_USB_C1_SCL,
.sda = GPIO_EC_I2C2_USB_C1_SDA,
},
{
.name = "usb_1_mix",
.port = I2C_PORT_USB_1_MIX,
.kbps = 100,
.scl = GPIO_EC_I2C3_USB_1_MIX_SCL,
.sda = GPIO_EC_I2C3_USB_1_MIX_SDA,
},
{
.name = "power",
.port = I2C_PORT_POWER,
.kbps = 100,
.scl = GPIO_EC_I2C5_POWER_SCL,
.sda = GPIO_EC_I2C5_POWER_SDA,
},
{
.name = "eeprom",
.port = I2C_PORT_EEPROM,
.kbps = 400,
.scl = GPIO_EC_I2C7_EEPROM_SCL,
.sda = GPIO_EC_I2C7_EEPROM_SDA,
},
};
const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
/******************************************************************************/
/* PWM configuration */
const struct pwm_t pwm_channels[] = {
[PWM_CH_FAN] = {
.channel = 5,
.flags = PWM_CONFIG_OPEN_DRAIN,
.freq = 25000
},
[PWM_CH_KBLIGHT] = {
.channel = 3,
.flags = 0,
/*
* Set PWM frequency to multiple of 50 Hz and 60 Hz to prevent
* flicker. Higher frequencies consume similar average power to
* lower PWM frequencies, but higher frequencies record a much
* lower maximum power.
*/
.freq = 2400,
},
};
BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT);
static const struct tcpc_config_t tcpc_config_p0_usb3 = {
.bus_type = EC_BUS_TYPE_I2C,
.i2c_info = {
.port = I2C_PORT_USB_C0,
.addr_flags = PS8751_I2C_ADDR1_FLAGS,
},
.flags = TCPC_FLAGS_TCPCI_REV2_0 | TCPC_FLAGS_TCPCI_REV2_0_NO_VSAFE0V,
.drv = &ps8xxx_tcpm_drv,
.usb23 = USBC_PORT_0_USB2_NUM | (USBC_PORT_0_USB3_NUM << 4),
};
static const struct tcpc_config_t tcpc_config_p1_usb3 = {
.bus_type = EC_BUS_TYPE_I2C,
.i2c_info = {
.port = I2C_PORT_USB_C1,
.addr_flags = PS8751_I2C_ADDR1_FLAGS,
},
.flags = TCPC_FLAGS_TCPCI_REV2_0 | TCPC_FLAGS_TCPCI_REV2_0_NO_VSAFE0V,
.drv = &ps8xxx_tcpm_drv,
.usb23 = USBC_PORT_1_USB2_NUM | (USBC_PORT_1_USB3_NUM << 4),
};
static const struct usb_mux usbc0_usb3_mb_retimer = {
.usb_port = USBC_PORT_C0,
.driver = &tcpci_tcpm_usb_mux_driver,
.hpd_update = &ps8xxx_tcpc_update_hpd_status,
.next_mux = NULL,
};
static const struct usb_mux mux_config_p0_usb3 = {
.usb_port = USBC_PORT_C0,
.driver = &virtual_usb_mux_driver,
.hpd_update = &virtual_hpd_update,
.next_mux = &usbc0_usb3_mb_retimer,
};
static const struct usb_mux usbc1_usb3_db_retimer = {
.usb_port = USBC_PORT_C1,
.driver = &tcpci_tcpm_usb_mux_driver,
.hpd_update = &ps8xxx_tcpc_update_hpd_status,
.next_mux = NULL,
};
static const struct usb_mux mux_config_p1_usb3 = {
.usb_port = USBC_PORT_C1,
.driver = &virtual_usb_mux_driver,
.hpd_update = &virtual_hpd_update,
.next_mux = &usbc1_usb3_db_retimer,
};
static const struct bb_usb_control bb_p0_control = {
.shared_nvm = false,
.usb_ls_en_gpio = GPIO_USB_C0_LS_EN,
.retimer_rst_gpio = GPIO_USB_C0_RT_RST_ODL,
.force_power_gpio = GPIO_USB_C0_RT_FORCE_PWR,
};
/******************************************************************************/
/* USB-A charging control */
const int usb_port_enable[USB_PORT_COUNT] = {
GPIO_EN_PP5000_USBA,
};
static void ps8815_reset(int port)
{
int val;
int i2c_port;
enum gpio_signal ps8xxx_rst_odl;
if (port == USBC_PORT_C0) {
ps8xxx_rst_odl = GPIO_USB_C0_RT_RST_ODL;
i2c_port = I2C_PORT_USB_C0;
} else if (port == USBC_PORT_C1) {
ps8xxx_rst_odl = GPIO_USB_C1_RT_RST_ODL;
i2c_port = I2C_PORT_USB_C1;
} else {
return;
}
gpio_set_level(ps8xxx_rst_odl, 0);
msleep(GENERIC_MAX(PS8XXX_RESET_DELAY_MS,
PS8815_PWR_H_RST_H_DELAY_MS));
gpio_set_level(ps8xxx_rst_odl, 1);
msleep(PS8815_FW_INIT_DELAY_MS);
CPRINTS("[C%d] %s: patching ps8815 registers", port, __func__);
if (i2c_read8(i2c_port,
PS8751_I2C_ADDR1_P2_FLAGS, 0x0f, &val) == EC_SUCCESS)
CPRINTS("ps8815: reg 0x0f was %02x", val);
if (i2c_write8(i2c_port,
PS8751_I2C_ADDR1_P2_FLAGS, 0x0f, 0x31) == EC_SUCCESS)
CPRINTS("ps8815: reg 0x0f set to 0x31");
if (i2c_read8(i2c_port,
PS8751_I2C_ADDR1_P2_FLAGS, 0x0f, &val) == EC_SUCCESS)
CPRINTS("ps8815: reg 0x0f now %02x", val);
}
void board_reset_pd_mcu(void)
{
ps8815_reset(USBC_PORT_C0);
usb_mux_hpd_update(USBC_PORT_C0, 0, 0);
ps8815_reset(USBC_PORT_C1);
usb_mux_hpd_update(USBC_PORT_C1, 0, 0);
}
__override void board_cbi_init(void)
{
/* Config MB USB3 */
tcpc_config[USBC_PORT_C0] = tcpc_config_p0_usb3;
usb_muxes[USBC_PORT_C0] = mux_config_p0_usb3;
bb_controls[USBC_PORT_C0] = bb_p0_control;
/* Config DB USB3 */
tcpc_config[USBC_PORT_C1] = tcpc_config_p1_usb3;
usb_muxes[USBC_PORT_C1] = mux_config_p1_usb3;
}
/******************************************************************************/
/* USBC PPC configuration */
struct ppc_config_t ppc_chips[] = {
[USBC_PORT_C0] = {
.i2c_port = I2C_PORT_USB_C0,
.i2c_addr_flags = SYV682X_ADDR0_FLAGS,
.drv = &syv682x_drv,
},
[USBC_PORT_C1] = {
.i2c_port = I2C_PORT_USB_C1,
.i2c_addr_flags = SYV682X_ADDR0_FLAGS,
.drv = &syv682x_drv,
},
};
BUILD_ASSERT(ARRAY_SIZE(ppc_chips) == USBC_PORT_COUNT);
unsigned int ppc_cnt = ARRAY_SIZE(ppc_chips);
/******************************************************************************/
/* PPC support routines */
void ppc_interrupt(enum gpio_signal signal)
{
switch (signal) {
case GPIO_USB_C0_PPC_INT_ODL:
syv682x_interrupt(USBC_PORT_C0);
break;
case GPIO_USB_C1_PPC_INT_ODL:
syv682x_interrupt(USBC_PORT_C1);
default:
break;
}
}
|