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
180
181
182
|
/*
* Copyright (C) 2014 Raphaël Poggi
* Copyright (C) 2012 Steffen Trumtrar, Pengutronix
*
* based on arch/arm/boards/freescale-mx6-arm2/board.c
*
* 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.
*/
#include <common.h>
#include <init.h>
#include <environment.h>
#include <mach/imx6-regs.h>
#include <fec.h>
#include <gpio.h>
#include <mach/bbu.h>
#include <asm/armlinux.h>
#include <generated/mach-types.h>
#include <partition.h>
#include <linux/phy.h>
#include <asm/io.h>
#include <asm/mmu.h>
#include <mach/generic.h>
#include <linux/sizes.h>
#include <net.h>
#include <linux/micrel_phy.h>
#include <mach/imx6.h>
#include <mach/devices-imx6.h>
#include <mach/iomux-mx6.h>
#include <spi/spi.h>
#include <mach/spi.h>
#include <mach/usb.h>
static iomux_v3_cfg_t udoo_enet_gpio_pads_1[] = {
/* RGMII reset */
MX6Q_PAD_EIM_D23__GPIO_3_23 | MUX_PAD_CTRL(NO_PAD_CTRL),
/* alimentazione ethernet*/
MX6Q_PAD_EIM_EB3__GPIO_2_31 | MUX_PAD_CTRL(NO_PAD_CTRL),
/* pin 32 - 1 - (MODE0) all */
MX6Q_PAD_RGMII_RD0__GPIO_6_25 | MUX_PAD_CTRL(NO_PAD_CTRL),
/* pin 31 - 1 - (MODE1) all */
MX6Q_PAD_RGMII_RD1__GPIO_6_27 | MUX_PAD_CTRL(NO_PAD_CTRL),
/* pin 28 - 1 - (MODE2) all */
MX6Q_PAD_RGMII_RD2__GPIO_6_28 | MUX_PAD_CTRL(NO_PAD_CTRL),
/* pin 27 - 1 - (MODE3) all */
MX6Q_PAD_RGMII_RD3__GPIO_6_29 | MUX_PAD_CTRL(NO_PAD_CTRL),
/* pin 33 - 1 - (CLK125_EN) 125Mhz clockout enabled */
MX6Q_PAD_RGMII_RX_CTL__GPIO_6_24 | MUX_PAD_CTRL(NO_PAD_CTRL),
};
static iomux_v3_cfg_t udoo_enet_gpio_pads_2[] = {
/* Ethernet */
MX6Q_PAD_RGMII_RXC__GPIO_6_30, /* PHYAD */
MX6Q_PAD_RGMII_RD0__GPIO_6_25, /* MODE0 */
MX6Q_PAD_RGMII_RD1__GPIO_6_27, /* MODE1 */
MX6Q_PAD_RGMII_RD2__GPIO_6_28, /* MODE2 */
MX6Q_PAD_RGMII_RD3__GPIO_6_29, /* MODE3 */
MX6Q_PAD_RGMII_RX_CTL__ENET_RGMII_RX_CTL,
};
static int ksz9021rn_phy_fixup(struct phy_device *dev)
{
phy_write(dev, 0x09, 0x1c00);
phy_write(dev, 0x4, 0x0000);
phy_write(dev, 0x5, 0x0000);
phy_write(dev, 0x6, 0x0000);
phy_write(dev, 0x8, 0x03ff);
/* do same as linux kernel */
/* min rx data delay */
phy_write(dev, 0x0b, 0x8105);
phy_write(dev, 0x0c, 0x0000);
/* max rx/tx clock delay, min rx/tx control delay */
phy_write(dev, 0x0b, 0x8104);
phy_write(dev, 0x0c, 0xf0f0);
phy_write(dev, 0x0b, 0x104);
return 0;
}
static int udoo_ksz9021rn_setup(void)
{
if (!of_machine_is_compatible("udoo,imx6qdl-udoo"))
return 0;
mxc_iomux_v3_setup_multiple_pads(udoo_enet_gpio_pads_1,
ARRAY_SIZE(udoo_enet_gpio_pads_1));
gpio_direction_output(IMX_GPIO_NR(2, 31) , 1); /* Power on enet */
/* MODE strap-in pins: advertise all capabilities */
gpio_direction_output(IMX_GPIO_NR(6, 24), 1);
gpio_direction_output(IMX_GPIO_NR(6, 25), 1);
gpio_direction_output(IMX_GPIO_NR(6, 27), 1);
gpio_direction_output(IMX_GPIO_NR(6, 28), 1);
gpio_direction_output(IMX_GPIO_NR(6, 29), 1);
mdelay(100);
gpio_free(IMX_GPIO_NR(6, 24));
gpio_free(IMX_GPIO_NR(6, 25));
gpio_free(IMX_GPIO_NR(6, 27));
gpio_free(IMX_GPIO_NR(6, 28));
gpio_free(IMX_GPIO_NR(6, 29));
mxc_iomux_v3_setup_multiple_pads(udoo_enet_gpio_pads_2, ARRAY_SIZE(udoo_enet_gpio_pads_2));
return 0;
}
/*
* Do this before the fec initializes but after our
* gpios are available.
*/
fs_initcall(udoo_ksz9021rn_setup);
static void udoo_ehci_init(void)
{
/* hub reset */
gpio_direction_output(204, 0);
udelay(2000);
gpio_set_value(204, 1);
}
static iomux_v3_cfg_t const wdog_pads[] = {
MX6Q_PAD_EIM_A24__GPIO_5_4 | MUX_PAD_CTRL(NO_PAD_CTRL),
MX6Q_PAD_EIM_D19__EPIT1_EPITO,
};
#define WDT_EN IMX_GPIO_NR(5, 4)
#define WDT_TRG IMX_GPIO_NR(3, 19)
static void udoo_wdog_init(void)
{
mxc_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads));
gpio_direction_output(WDT_TRG, 0);
gpio_direction_output(WDT_EN, 1);
gpio_direction_input(WDT_TRG);
}
static void udoo_epit_init(void)
{
writel(0x0000000, MX6_EPIT1_BASE_ADDR);
writel(0x142000F, MX6_EPIT1_BASE_ADDR);
writel(0x30000, MX6_EPIT1_BASE_ADDR + 0x8);
writel(0x0, MX6_EPIT1_BASE_ADDR + 0xC);
}
static int udoo_devices_init(void)
{
if (!of_machine_is_compatible("udoo,imx6qdl-udoo"))
return 0;
udoo_wdog_init();
udoo_ehci_init();
udoo_epit_init();
armlinux_set_bootparams((void *)0x10000100);
barebox_set_hostname("udoo");
return 0;
}
device_initcall(udoo_devices_init);
static int udoo_coredevices_init(void)
{
if (!of_machine_is_compatible("udoo,imx6qdl-udoo"))
return 0;
phy_register_fixup_for_uid(PHY_ID_KSZ9021, MICREL_PHY_ID_MASK,
ksz9021rn_phy_fixup);
return 0;
}
coredevice_initcall(udoo_coredevices_init);
|
