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
|
/*
* (C) Copyright 2010,2011
* NVIDIA Corporation <www.nvidia.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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; either version 2 of
* the License, or (at your option) any later version.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <ns16550.h>
#include <linux/compiler.h>
#include <asm/io.h>
#include <asm/arch/tegra2.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/board.h>
#include <asm/arch/clk_rst.h>
#include <asm/arch/clock.h>
#include <asm/arch/emc.h>
#include <asm/arch/pinmux.h>
#include <asm/arch/pmc.h>
#include <asm/arch/pmu.h>
#include <asm/arch/uart.h>
#include <asm/arch/warmboot.h>
#include <spi.h>
#include <asm/arch/usb.h>
#include <i2c.h>
#include "board.h"
#include "emc.h"
DECLARE_GLOBAL_DATA_PTR;
const struct tegra2_sysinfo sysinfo = {
CONFIG_TEGRA2_BOARD_STRING
};
/*
* Routine: timer_init
* Description: init the timestamp and lastinc value
*/
int timer_init(void)
{
return 0;
}
void __pin_mux_usb(void)
{
}
void pin_mux_usb(void) __attribute__((weak, alias("__pin_mux_usb")));
/*
* Routine: power_det_init
* Description: turn off power detects
*/
static void power_det_init(void)
{
#if defined(CONFIG_TEGRA2)
struct pmc_ctlr *const pmc = (struct pmc_ctlr *)TEGRA2_PMC_BASE;
/* turn off power detects */
writel(0, &pmc->pmc_pwr_det_latch);
writel(0, &pmc->pmc_pwr_det);
#endif
}
/*
* Routine: board_init
* Description: Early hardware init.
*/
int board_init(void)
{
__maybe_unused int err;
/* Do clocks and UART first so that printf() works */
clock_init();
clock_verify();
#ifdef CONFIG_SPI_UART_SWITCH
gpio_config_uart();
#endif
#ifdef CONFIG_TEGRA2_SPI
spi_init();
#endif
/* boot param addr */
gd->bd->bi_boot_params = (NV_PA_SDRAM_BASE + 0x100);
power_det_init();
#ifdef CONFIG_TEGRA_I2C
#ifndef CONFIG_SYS_I2C_INIT_BOARD
#error "You must define CONFIG_SYS_I2C_INIT_BOARD to use i2c on Nvidia boards"
#endif
i2c_init_board();
# ifdef CONFIG_TEGRA_PMU
if (pmu_set_nominal())
debug("Failed to select nominal voltages\n");
# ifdef CONFIG_TEGRA_CLOCK_SCALING
err = board_emc_init();
if (err)
debug("Memory controller init failed: %d\n", err);
# endif
# endif /* CONFIG_TEGRA_PMU */
#endif /* CONFIG_TEGRA_I2C */
#ifdef CONFIG_USB_EHCI_TEGRA
pin_mux_usb();
board_usb_init(gd->fdt_blob);
#endif
#ifdef CONFIG_TEGRA2_LP0
/* prepare the WB code to LP0 location */
warmboot_prepare_code(TEGRA_LP0_ADDR, TEGRA_LP0_SIZE);
#endif
return 0;
}
#ifdef CONFIG_BOARD_EARLY_INIT_F
static void __gpio_early_init(void)
{
}
void gpio_early_init(void) __attribute__((weak, alias("__gpio_early_init")));
int board_early_init_f(void)
{
board_init_uart_f();
/* Initialize periph GPIOs */
gpio_early_init();
#ifdef CONFIG_SPI_UART_SWITCH
gpio_early_init_uart();
#else
gpio_config_uart();
#endif
return 0;
}
#endif /* EARLY_INIT */
|
