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
|
/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef __CHROMEOS_H__
#define __CHROMEOS_H__
#include <stddef.h>
#include <stdint.h>
#include <types.h>
#if CONFIG(CHROMEOS)
/* functions implemented in watchdog.c */
void mark_watchdog_tombstone(void);
void reboot_from_watchdog(void);
bool reset_watchdog_tombstone(void);
#else
static inline void mark_watchdog_tombstone(void) { return; }
static inline void reboot_from_watchdog(void) { return; }
#endif /* CONFIG_CHROMEOS */
#define UNDEFINED_FACTORY_CONFIG ~((uint64_t)0)
/**
* Perform any platform specific actions required prior to resetting the Cr50.
* Defined as weak function in cr50_enable_update.c
*/
void mainboard_prepare_cr50_reset(void);
void cbmem_add_vpd_calibration_data(void);
void chromeos_set_me_hash(u32*, int);
void chromeos_set_ramoops(void *ram_oops, size_t size);
/*
* The factory config space is a one-time programmable info page.
* For the unprovisioned one, the read will be 0x0.
* Return "UNDEFINED_FACTORY_CONFIG" in case of error.
*/
uint64_t chromeos_get_factory_config(void);
/*
* Determines whether a ChromeOS device is branded as a Chromebook-Plus
* based on specific bit flags:
*
* - Bit 4 (0x10): Indicates whether the device chassis has the
* "chromebook-plus" branding.
* - Bits 3-0 (0x1): Must be 0x1 to signify compliance with Chromebook-Plus
* hardware specifications.
*
* To be considered a Chromebook-Plus, both of these conditions need to be met.
*/
bool chromeos_device_branded_plus_hard(void);
/*
* Determines whether a ChromeOS device is soft-branded as a Chromebook-Plus
* after meeting below conditions:
*
* - Device is compliant to the Chromebook-Plus Hardware Specification.
* - Business decision makes this device qualified as Chromebook-Plus.
*
* To be considered a soft-branded Chromebook-Plus, both of these conditions need to be met.
*/
bool chromeos_device_branded_plus_soft(void);
/*
* Declaration for mainboards to use to generate ACPI-specific ChromeOS needs.
*/
void chromeos_acpi_gpio_generate(void);
enum {
CROS_GPIO_REC = 1, /* Recovery */
CROS_GPIO_DEPRECATED_DEV = 2, /* Developer;
* deprecated (chromium:942901) */
CROS_GPIO_WP = 3, /* Write Protect */
CROS_GPIO_PE = 4, /* Phase enforcement for final product */
CROS_GPIO_ACTIVE_LOW = 0,
CROS_GPIO_ACTIVE_HIGH = 1,
CROS_GPIO_VIRTUAL = -1,
};
struct cros_gpio {
int type;
int polarity;
int gpio_num;
const char *device;
};
#define CROS_GPIO_INITIALIZER(typ, pol, num, dev) \
{ \
.type = (typ), \
.polarity = (pol), \
.gpio_num = (num), \
.device = (dev), \
}
#define CROS_GPIO_REC_INITIALIZER(pol, num, dev) \
CROS_GPIO_INITIALIZER(CROS_GPIO_REC, pol, num, dev)
#define CROS_GPIO_REC_AL(num, dev) \
CROS_GPIO_REC_INITIALIZER(CROS_GPIO_ACTIVE_LOW, num, dev)
#define CROS_GPIO_REC_AH(num, dev) \
CROS_GPIO_REC_INITIALIZER(CROS_GPIO_ACTIVE_HIGH, num, dev)
#define CROS_GPIO_WP_INITIALIZER(pol, num, dev) \
CROS_GPIO_INITIALIZER(CROS_GPIO_WP, pol, num, dev)
#define CROS_GPIO_WP_AL(num, dev) \
CROS_GPIO_WP_INITIALIZER(CROS_GPIO_ACTIVE_LOW, num, dev)
#define CROS_GPIO_WP_AH(num, dev) \
CROS_GPIO_WP_INITIALIZER(CROS_GPIO_ACTIVE_HIGH, num, dev)
#define CROS_GPIO_PE_INITIALIZER(pol, num, dev) \
CROS_GPIO_INITIALIZER(CROS_GPIO_PE, pol, num, dev)
#define CROS_GPIO_PE_AL(num, dev) \
CROS_GPIO_PE_INITIALIZER(CROS_GPIO_ACTIVE_LOW, num, dev)
#define CROS_GPIO_PE_AH(num, dev) \
CROS_GPIO_PE_INITIALIZER(CROS_GPIO_ACTIVE_HIGH, num, dev)
struct cros_gpio_pack {
int count;
const struct cros_gpio *gpios;
};
extern const struct cros_gpio_pack variant_cros_gpio;
#define DECLARE_NO_CROS_GPIOS() \
const struct cros_gpio_pack variant_cros_gpio = \
{ .count = 0, .gpios = NULL }
#define DECLARE_CROS_GPIOS(x) \
const struct cros_gpio_pack variant_cros_gpio = \
{ .count = ARRAY_SIZE(x), .gpios = x }
#define DECLARE_WEAK_CROS_GPIOS(x) \
const struct cros_gpio_pack __weak variant_cros_gpio = \
{ .count = ARRAY_SIZE(x), .gpios = x }
#endif /* __CHROMEOS_H__ */
|
