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
|
/*
* Copyright (c) 2012 The Chromium OS Authors.
*
* 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.
*
* 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 <arch/gpio.h>
#include <cpu/samsung/exynos5-common/spl.h>
#include <cpu/samsung/exynos5250/gpio.h>
#define SIGNATURE 0xdeadbeef
/* Parameters of early board initialization in SPL */
static struct spl_machine_param machine_param = {
.signature = SIGNATURE,
.version = 1,
.params = "vmubfasirMw",
.size = sizeof(machine_param),
.mem_iv_size = 0x1f,
.mem_type = DDR_MODE_DDR3,
/*
* Set uboot_size to 0x100000 bytes.
*
* This is an overly conservative value chosen to accommodate all
* possible U-Boot image. You are advised to set this value to a
* smaller realistic size via scripts that modifies the .machine_param
* section of output U-Boot image.
*/
.uboot_size = 0x100000,
.boot_source = BOOT_MODE_OM,
.frequency_mhz = 800,
.arm_freq_mhz = 1700,
.serial_base = 0x12c30000,
.i2c_base = 0x12c60000,
.board_rev_gpios = GPIO_D00 | (GPIO_D01 << 16),
.mem_manuf = MEM_MANUF_SAMSUNG,
.bad_wake_gpio = GPIO_Y10,
};
struct spl_machine_param *spl_get_machine_params(void)
{
if (machine_param.signature != SIGNATURE) {
/* TODO: Call panic() here */
while (1)
;
}
return &machine_param;
}
#if 0
int board_get_revision(void)
{
struct spl_machine_param *params = spl_get_machine_params();
unsigned gpio[CONFIG_BOARD_REV_GPIO_COUNT];
gpio[0] = params->board_rev_gpios & 0xffff;
gpio[1] = params->board_rev_gpios >> 16;
return gpio_decode_number(gpio, CONFIG_BOARD_REV_GPIO_COUNT);
}
#endif
int board_wakeup_permitted(void)
{
struct spl_machine_param *param = spl_get_machine_params();
const int gpio = param->bad_wake_gpio;
int is_bad_wake;
/* We're a bad wakeup if the gpio was defined and was high */
is_bad_wake = ((gpio != -1) && gpio_get_value(gpio));
return !is_bad_wake;
}
/*
* TODO(sjg@chromium.org):
* Declared there here for SPL, since there is no core i2c subsystem and
* cmd_i2c.c is not included.
*/
void board_i2c_release_bus(int node)
{
}
int board_i2c_claim_bus(int node)
{
/* EC is not allowed to touch the bus until we enter U-Boot */
return 0;
}
|
