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
|
/*
* This file is part of the coreboot project.
*
* Copyright 2016 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <arch/acpi.h>
#include <baseboard/variants.h>
#include <boardid.h>
#include <console/console.h>
#include <device/device.h>
#include <ec/ec.h>
#include <gpio.h>
#include <nhlt.h>
#include <smbios.h>
#include <soc/gpio.h>
#include <soc/nhlt.h>
#include <string.h>
#include <vendorcode/google/chromeos/chromeos.h>
#include <variant/ec.h>
#include <variant/gpio.h>
static void mainboard_init(void *chip_info)
{
int boardid;
const struct pad_config *pads;
size_t num;
boardid = board_id();
printk(BIOS_INFO, "Board ID: %d\n", boardid);
pads = variant_gpio_table(&num);
gpio_configure_pads(pads, num);
mainboard_ec_init();
variant_board_ec_set_skuid();
}
/*
* There are 2 pins on reef-like boards that can be used for SKU'ing
* board differences. They each have optional stuffing for a pullup and
* a pulldown. This way we can generate 9 different values with the
* 2 pins.
*/
uint8_t sku_strapping_value(void)
{
gpio_t board_sku_gpios[] = {
[1] = GPIO_17, [0] = GPIO_16,
};
const size_t num = ARRAY_SIZE(board_sku_gpios);
return gpio_base3_value(board_sku_gpios, num);
}
uint8_t __attribute__((weak)) variant_board_sku(void)
{
static int board_sku_num = -1;
if (board_sku_num < 0)
board_sku_num = sku_strapping_value();
return board_sku_num;
}
/* Set variant board sku to ec by sku id */
void __attribute__((weak)) variant_board_ec_set_skuid(void)
{
}
const char *smbios_mainboard_sku(void)
{
static char sku_str[7]; /* sku{0..255} */
snprintf(sku_str, sizeof(sku_str), "sku%d", variant_board_sku());
return sku_str;
}
void __attribute__((weak)) variant_nhlt_oem_overrides(const char **oem_id,
const char **oem_table_id,
uint32_t *oem_revision)
{
*oem_id = "reef";
*oem_table_id = CONFIG_VARIANT_DIR;
*oem_revision = variant_board_sku();
}
static unsigned long mainboard_write_acpi_tables(
device_t device, unsigned long current, acpi_rsdp_t *rsdp)
{
uintptr_t start_addr;
uintptr_t end_addr;
struct nhlt *nhlt;
const char *oem_id = NULL;
const char *oem_table_id = NULL;
uint32_t oem_revision = 0;
start_addr = current;
nhlt = nhlt_init();
if (nhlt == NULL)
return start_addr;
variant_nhlt_init(nhlt);
variant_nhlt_oem_overrides(&oem_id, &oem_table_id, &oem_revision);
end_addr = nhlt_soc_serialize_oem_overrides(nhlt, start_addr,
oem_id, oem_table_id, oem_revision);
if (end_addr != start_addr)
acpi_add_table(rsdp, (void *)start_addr);
return end_addr;
}
static void mainboard_enable(device_t dev)
{
dev->ops->write_acpi_tables = mainboard_write_acpi_tables;
dev->ops->acpi_inject_dsdt_generator = chromeos_dsdt_generator;
}
struct chip_operations mainboard_ops = {
.init = mainboard_init,
.enable_dev = mainboard_enable,
};
|
