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
|
/*
* Amazon Kindle Fire (first generation) codename kc1 config
*
* Copyright (C) 2016 Paul Kocialkowski <contact@paulk.fr>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <config.h>
#include <common.h>
#include <linux/ctype.h>
#include <linux/usb/musb.h>
#include <asm/omap_musb.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/mmc_host_def.h>
#include <asm/gpio.h>
#include <asm/emif.h>
#include <twl6030.h>
#include "kc1.h"
DECLARE_GLOBAL_DATA_PTR;
const struct omap_sysinfo sysinfo = {
.board_string = "kc1"
};
static struct musb_hdrc_config musb_config = {
.multipoint = 1,
.dyn_fifo = 1,
.num_eps = 16,
.ram_bits = 12
};
static struct omap_musb_board_data musb_board_data = {
.interface_type = MUSB_INTERFACE_UTMI,
};
static struct musb_hdrc_platform_data musb_platform_data = {
.mode = MUSB_PERIPHERAL,
.config = &musb_config,
.power = 100,
.platform_ops = &omap2430_ops,
.board_data = &musb_board_data,
};
void set_muxconf_regs(void)
{
do_set_mux((*ctrl)->control_padconf_core_base, core_padconf_array,
sizeof(core_padconf_array) / sizeof(struct pad_conf_entry));
}
struct lpddr2_device_details *emif_get_device_details(u32 emif_nr, u8 cs,
struct lpddr2_device_details *lpddr2_dev_details)
{
if (cs == CS1)
return NULL;
*lpddr2_dev_details = elpida_2G_S4_details;
return lpddr2_dev_details;
}
void emif_get_device_timings(u32 emif_nr,
const struct lpddr2_device_timings **cs0_device_timings,
const struct lpddr2_device_timings **cs1_device_timings)
{
*cs0_device_timings = &elpida_2G_S4_timings;
*cs1_device_timings = NULL;
}
int board_init(void)
{
/* GPMC init */
gpmc_init();
/* MACH number */
gd->bd->bi_arch_number = MACH_TYPE_OMAP_4430SDP;
/* ATAGs location */
gd->bd->bi_boot_params = OMAP44XX_DRAM_ADDR_SPACE_START + 0x100;
return 0;
}
int misc_init_r(void)
{
char reboot_mode[2] = { 0 };
u32 data = 0;
u32 value;
int rc;
/* Reboot mode */
rc = omap_reboot_mode(reboot_mode, sizeof(reboot_mode));
/* USB ID pin pull-up indicates factory (fastboot) cable detection. */
gpio_request(KC1_GPIO_USB_ID, "USB_ID");
gpio_direction_input(KC1_GPIO_USB_ID);
value = gpio_get_value(KC1_GPIO_USB_ID);
if (value)
reboot_mode[0] = 'b';
if (rc < 0 || reboot_mode[0] == 'o') {
/*
* When not rebooting, valid power on reasons are either the
* power button, charger plug or USB plug.
*/
data |= twl6030_input_power_button();
data |= twl6030_input_charger();
data |= twl6030_input_usb();
if (!data)
twl6030_power_off();
}
if (reboot_mode[0] > 0 && isascii(reboot_mode[0])) {
if (!getenv("reboot-mode"))
setenv("reboot-mode", (char *)reboot_mode);
}
omap_reboot_mode_clear();
/* Serial number */
omap_die_id_serial();
/* MUSB */
musb_register(&musb_platform_data, &musb_board_data, (void *)MUSB_BASE);
return 0;
}
u32 get_board_rev(void)
{
u32 value = 0;
gpio_request(KC1_GPIO_MBID0, "MBID0");
gpio_request(KC1_GPIO_MBID1, "MBID1");
gpio_request(KC1_GPIO_MBID2, "MBID2");
gpio_request(KC1_GPIO_MBID3, "MBID3");
gpio_direction_input(KC1_GPIO_MBID0);
gpio_direction_input(KC1_GPIO_MBID1);
gpio_direction_input(KC1_GPIO_MBID2);
gpio_direction_input(KC1_GPIO_MBID3);
value |= (gpio_get_value(KC1_GPIO_MBID0) << 0);
value |= (gpio_get_value(KC1_GPIO_MBID1) << 1);
value |= (gpio_get_value(KC1_GPIO_MBID2) << 2);
value |= (gpio_get_value(KC1_GPIO_MBID3) << 3);
return value;
}
void get_board_serial(struct tag_serialnr *serialnr)
{
omap_die_id_get_board_serial(serialnr);
}
int fb_set_reboot_flag(void)
{
return omap_reboot_mode_store("b");
}
#ifndef CONFIG_SPL_BUILD
int board_mmc_init(bd_t *bis)
{
return omap_mmc_init(1, 0, 0, -1, -1);
}
#endif
void board_mmc_power_init(void)
{
twl6030_power_mmc_init(1);
}
|
