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
|
/*
* NVIDIA Tegra SoC device tree board support
*
* Copyright (C) 2011, 2013, NVIDIA Corporation
* Copyright (C) 2010 Secret Lab Technologies, Ltd.
* Copyright (C) 2010 Google, Inc.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* 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 <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/serial_8250.h>
#include <linux/clk.h>
#include <linux/dma-mapping.h>
#include <linux/irqdomain.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_fdt.h>
#include <linux/of_platform.h>
#include <linux/pda_power.h>
#include <linux/io.h>
#include <linux/slab.h>
#include <linux/sys_soc.h>
#include <linux/usb/tegra_usb_phy.h>
#include <linux/clk/tegra.h>
#include <linux/irqchip.h>
#include <asm/hardware/cache-l2x0.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/setup.h>
#include <asm/trusted_foundations.h>
#include "apbio.h"
#include "board.h"
#include "common.h"
#include "cpuidle.h"
#include "fuse.h"
#include "iomap.h"
#include "irq.h"
#include "pmc.h"
#include "pm.h"
#include "reset.h"
#include "sleep.h"
/*
* Storage for debug-macro.S's state.
*
* This must be in .data not .bss so that it gets initialized each time the
* kernel is loaded. The data is declared here rather than debug-macro.S so
* that multiple inclusions of debug-macro.S point at the same data.
*/
u32 tegra_uart_config[3] = {
/* Debug UART initialization required */
1,
/* Debug UART physical address */
0,
/* Debug UART virtual address */
0,
};
static void __init tegra_init_early(void)
{
of_register_trusted_foundations();
tegra_apb_io_init();
tegra_init_fuse();
tegra_cpu_reset_handler_init();
tegra_powergate_init();
tegra_hotplug_init();
}
static void __init tegra_dt_init_irq(void)
{
tegra_pmc_init_irq();
tegra_init_irq();
irqchip_init();
tegra_legacy_irq_syscore_init();
}
static void __init tegra_dt_init(void)
{
struct soc_device_attribute *soc_dev_attr;
struct soc_device *soc_dev;
struct device *parent = NULL;
tegra_pmc_init();
tegra_clocks_apply_init_table();
soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
if (!soc_dev_attr)
goto out;
soc_dev_attr->family = kasprintf(GFP_KERNEL, "Tegra");
soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%d", tegra_revision);
soc_dev_attr->soc_id = kasprintf(GFP_KERNEL, "%d", tegra_chip_id);
soc_dev = soc_device_register(soc_dev_attr);
if (IS_ERR(soc_dev)) {
kfree(soc_dev_attr->family);
kfree(soc_dev_attr->revision);
kfree(soc_dev_attr->soc_id);
kfree(soc_dev_attr);
goto out;
}
parent = soc_device_to_device(soc_dev);
/*
* Finished with the static registrations now; fill in the missing
* devices
*/
out:
of_platform_populate(NULL, of_default_bus_match_table, NULL, parent);
}
static void __init paz00_init(void)
{
if (IS_ENABLED(CONFIG_ARCH_TEGRA_2x_SOC))
tegra_paz00_wifikill_init();
}
static struct {
char *machine;
void (*init)(void);
} board_init_funcs[] = {
{ "compal,paz00", paz00_init },
};
static void __init tegra_dt_init_late(void)
{
int i;
tegra_init_suspend();
tegra_cpuidle_init();
tegra_powergate_debugfs_init();
for (i = 0; i < ARRAY_SIZE(board_init_funcs); i++) {
if (of_machine_is_compatible(board_init_funcs[i].machine)) {
board_init_funcs[i].init();
break;
}
}
}
static const char * const tegra_dt_board_compat[] = {
"nvidia,tegra124",
"nvidia,tegra114",
"nvidia,tegra30",
"nvidia,tegra20",
NULL
};
DT_MACHINE_START(TEGRA_DT, "NVIDIA Tegra SoC (Flattened Device Tree)")
.l2c_aux_val = 0x3c400001,
.l2c_aux_mask = 0xc20fc3fe,
.smp = smp_ops(tegra_smp_ops),
.map_io = tegra_map_common_io,
.init_early = tegra_init_early,
.init_irq = tegra_dt_init_irq,
.init_machine = tegra_dt_init,
.init_late = tegra_dt_init_late,
.restart = tegra_pmc_restart,
.dt_compat = tegra_dt_board_compat,
MACHINE_END
|
