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
|
/*
* Copyright (C) 2012 Steffen Trumtrar, Pengutronix
*
* 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.
*
*/
#include <generated/mach-types.h>
#include <environment.h>
#include <bootsource.h>
#include <partition.h>
#include <common.h>
#include <envfs.h>
#include <sizes.h>
#include <init.h>
#include <gpio.h>
#include <fec.h>
#include <of.h>
#include <linux/micrel_phy.h>
#include <mfd/stmpe-i2c.h>
#include <asm/armlinux.h>
#include <asm/io.h>
#include <mach/devices-imx6.h>
#include <mach/imx6-regs.h>
#include <mach/iomux-mx6.h>
#include <mach/imx6-mmdc.h>
#include <mach/generic.h>
#include <mach/imx6.h>
#include <mach/bbu.h>
#define RQ7_GPIO_ENET_PHYADD2 IMX_GPIO_NR(6, 30)
#define RQ7_GPIO_ENET_MODE0 IMX_GPIO_NR(6, 25)
#define RQ7_GPIO_ENET_MODE1 IMX_GPIO_NR(6, 27)
#define RQ7_GPIO_ENET_MODE2 IMX_GPIO_NR(6, 28)
#define RQ7_GPIO_ENET_MODE3 IMX_GPIO_NR(6, 29)
#define RQ7_GPIO_ENET_EN_CLK125 IMX_GPIO_NR(6, 24)
#define RQ7_GPIO_ENET_RESET IMX_GPIO_NR(1, 25)
static iomux_v3_cfg_t realq7_pads_gpio[] = {
MX6Q_PAD_RGMII_RXC__GPIO_6_30,
MX6Q_PAD_RGMII_RD0__GPIO_6_25,
MX6Q_PAD_RGMII_RD1__GPIO_6_27,
MX6Q_PAD_RGMII_RD2__GPIO_6_28,
MX6Q_PAD_RGMII_RD3__GPIO_6_29,
MX6Q_PAD_RGMII_RX_CTL__GPIO_6_24,
MX6Q_PAD_ENET_CRS_DV__GPIO_1_25,
};
static int ksz9031rn_phy_fixup(struct phy_device *dev)
{
/*
* min rx data delay, max rx/tx clock delay,
* min rx/tx control delay
*/
phy_write_mmd_indirect(dev, 4, 2, 0);
phy_write_mmd_indirect(dev, 5, 2, 0);
phy_write_mmd_indirect(dev, 8, 2, 0x03ff);
return 0;
}
static int realq7_enet_init(void)
{
if (!of_machine_is_compatible("dmo,imx6q-edmqmx6"))
return 0;
mxc_iomux_v3_setup_multiple_pads(realq7_pads_gpio, ARRAY_SIZE(realq7_pads_gpio));
gpio_direction_output(RQ7_GPIO_ENET_PHYADD2, 0);
gpio_direction_output(RQ7_GPIO_ENET_MODE0, 1);
gpio_direction_output(RQ7_GPIO_ENET_MODE1, 1);
gpio_direction_output(RQ7_GPIO_ENET_MODE2, 1);
gpio_direction_output(RQ7_GPIO_ENET_MODE3, 1);
gpio_direction_output(RQ7_GPIO_ENET_EN_CLK125, 1);
gpio_direction_output(RQ7_GPIO_ENET_RESET, 0);
mdelay(50);
gpio_direction_output(RQ7_GPIO_ENET_RESET, 1);
mdelay(50);
gpio_free(RQ7_GPIO_ENET_RESET);
phy_register_fixup_for_uid(PHY_ID_KSZ9031, MICREL_PHY_ID_MASK,
ksz9031rn_phy_fixup);
return 0;
}
fs_initcall(realq7_enet_init);
static int realq7_env_init(void)
{
if (!of_machine_is_compatible("dmo,imx6q-edmqmx6"))
return 0;
imx6_bbu_internal_spi_i2c_register_handler("spiflash", "/dev/m25p0.barebox",
BBU_HANDLER_FLAG_DEFAULT);
imx6_bbu_internal_mmc_register_handler("mmc", "/dev/mmc3.barebox", 0);
return 0;
}
late_initcall(realq7_env_init);
static int realq7_device_init(void)
{
if (!of_machine_is_compatible("dmo,imx6q-edmqmx6"))
return 0;
gpio_direction_output(IMX_GPIO_NR(2, 22), 1);
gpio_direction_output(IMX_GPIO_NR(2, 21), 1);
switch (bootsource_get()) {
case BOOTSOURCE_MMC:
switch (bootsource_get_instance()) {
case 2:
of_device_enable_path("/chosen/environment-sd");
break;
case 3:
of_device_enable_path("/chosen/environment-emmc");
break;
}
break;
default:
case BOOTSOURCE_SPI:
of_device_enable_path("/chosen/environment-spi");
break;
}
barebox_set_hostname("eDM-QMX6");
return 0;
}
device_initcall(realq7_device_init);
|
