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
|
/* SPDX-License-Identifier: GPL-2.0-only */
#include <boardid.h>
#include <bootmode.h>
#include <console/console.h>
#include <device/device.h>
#include <device/mmio.h>
#include <ec/google/chromeec/ec.h>
#include <gpio.h>
#include <soc/bl31.h>
#include <soc/display.h>
#include <soc/dpm.h>
#include <soc/i2c.h>
#include <soc/msdc.h>
#include <soc/mtcmos.h>
#include <soc/pcie.h>
#include <soc/spm.h>
#include <soc/usb.h>
#include <types.h>
#include "gpio.h"
/* GPIO to schematics names */
#define GPIO_AP_EDP_BKLTEN GPIO(DGI_D5)
#define GPIO_BL_PWM_1V8 GPIO(DISP_PWM0)
#define GPIO_EDP_HPD_1V8 GPIO(GPIO_07)
#define GPIO_EN_PP3300_DISP_X GPIO(I2SO1_D2)
bool mainboard_needs_pcie_init(void)
{
uint32_t sku = sku_id();
if (sku == CROS_SKU_UNKNOWN) {
printk(BIOS_WARNING, "Unknown SKU (%#x); assuming PCIe", sku);
return true;
} else if (sku == CROS_SKU_UNPROVISIONED) {
printk(BIOS_WARNING, "Unprovisioned SKU (%#x); assuming PCIe", sku);
return true;
}
/*
* All cherry boards share the same SKU encoding. Therefore there is no need to check
* the board here.
* - BIT(1): NVMe (PCIe)
* - BIT(3): UFS (which takes precedence over BIT(1))
*/
if (sku & BIT(3))
return false;
if (sku & BIT(1))
return true;
/* Otherwise, eMMC */
return false;
}
/* Set up backlight control pins as output pin and power-off by default */
static void configure_backlight(void)
{
gpio_output(GPIO_AP_EDP_BKLTEN, 0);
gpio_output(GPIO_BL_PWM_1V8, 0);
}
static void power_on_panel(void)
{
/* Default power sequence for most panels. */
gpio_set_pull(GPIO_EDP_HPD_1V8, GPIO_PULL_ENABLE, GPIO_PULL_UP);
gpio_set_mode(GPIO_EDP_HPD_1V8, 2);
gpio_output(GPIO_EN_PP3300_DISP_X, 1);
}
static struct panel_description panel = {
.configure_backlight = configure_backlight,
.power_on = power_on_panel,
.disp_path = DISP_PATH_EDP,
.orientation = LB_FB_ORIENTATION_NORMAL,
};
struct panel_description *get_active_panel(void)
{
return &panel;
}
static void configure_i2s(void)
{
/* Audio PWR */
mtcmos_audio_power_on();
mtcmos_protect_audio_bus();
/* SoC I2S */
gpio_set_mode(GPIO(GPIO_02), PAD_GPIO_02_FUNC_TDMIN_LRCK);
gpio_set_mode(GPIO(GPIO_03), PAD_GPIO_03_FUNC_TDMIN_BCK);
gpio_set_mode(GPIO(I2SO2_D0), PAD_I2SO2_D0_FUNC_I2SO2_D0);
}
static void configure_audio(void)
{
if (CONFIG(CHERRY_USE_RT1011) || CONFIG(CHERRY_USE_MAX98390))
mtk_i2c_bus_init(I2C2, I2C_SPEED_FAST);
if (CONFIG(CHERRY_USE_MAX98390))
configure_i2s();
}
static void mainboard_init(struct device *dev)
{
if (display_init_required())
mtk_display_init();
else
printk(BIOS_INFO, "%s: Skipped display initialization\n", __func__);
mtk_msdc_configure_emmc(true);
mtk_msdc_configure_sdcard();
setup_usb_host();
configure_audio();
if (dpm_init())
printk(BIOS_ERR, "dpm init failed, DVFS may not work\n");
if (spm_init())
printk(BIOS_ERR, "spm init failed, system suspend may not work\n");
if (CONFIG(ARM64_USE_ARM_TRUSTED_FIRMWARE))
register_reset_to_bl31(GPIO_RESET.id, true);
}
static void mainboard_enable(struct device *dev)
{
dev->ops->init = &mainboard_init;
}
struct chip_operations mainboard_ops = {
.enable_dev = mainboard_enable,
};
|
