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
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
|
/*
* Copyright (C) 2014, Barco (www.barco.com)
* Copyright (C) 2014 Stefan Roese <sr@denx.de>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/arch/iomux.h>
#include <asm/arch/mx6-pins.h>
#include <asm/gpio.h>
#include <asm/imx-common/iomux-v3.h>
#include <asm/imx-common/mxc_i2c.h>
#include <miiphy.h>
#include <micrel.h>
#include "platinum.h"
iomux_v3_cfg_t const ecspi1_pads[] = {
MX6_PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(ECSPI1_PAD_CLK),
MX6_PAD_EIM_D17__ECSPI1_MISO | MUX_PAD_CTRL(ECSPI_PAD_MISO),
MX6_PAD_EIM_D18__ECSPI1_MOSI | MUX_PAD_CTRL(ECSPI_PAD_MOSI),
MX6_PAD_CSI0_DAT7__ECSPI1_SS0 | MUX_PAD_CTRL(ECSPI_PAD_SS),
/* non mounted spi nor flash for booting */
MX6_PAD_EIM_D19__ECSPI1_SS1 | MUX_PAD_CTRL(NO_PAD_CTRL),
MX6_PAD_EIM_D24__ECSPI1_SS2 | MUX_PAD_CTRL(ECSPI_PAD_SS),
MX6_PAD_EIM_D25__ECSPI1_SS3 | MUX_PAD_CTRL(ECSPI_PAD_SS),
};
iomux_v3_cfg_t const ecspi2_pads[] = {
MX6_PAD_EIM_CS0__ECSPI2_SCLK | MUX_PAD_CTRL(ECSPI2_PAD_CLK),
MX6_PAD_EIM_OE__ECSPI2_MISO | MUX_PAD_CTRL(ECSPI_PAD_MISO),
MX6_PAD_EIM_CS1__ECSPI2_MOSI | MUX_PAD_CTRL(ECSPI_PAD_MOSI),
MX6_PAD_EIM_RW__ECSPI2_SS0 | MUX_PAD_CTRL(ECSPI_PAD_SS),
};
iomux_v3_cfg_t const enet_pads1[] = {
MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL),
/* pin 35 - 1 (PHY_AD2) on reset */
MX6_PAD_RGMII_RXC__GPIO6_IO30 | MUX_PAD_CTRL(NO_PAD_CTRL),
/* pin 32 - 1 - (MODE0) all */
MX6_PAD_RGMII_RD0__GPIO6_IO25 | MUX_PAD_CTRL(NO_PAD_CTRL),
/* pin 31 - 1 - (MODE1) all */
MX6_PAD_RGMII_RD1__GPIO6_IO27 | MUX_PAD_CTRL(NO_PAD_CTRL),
/* pin 28 - 1 - (MODE2) all */
MX6_PAD_RGMII_RD2__GPIO6_IO28 | MUX_PAD_CTRL(NO_PAD_CTRL),
/* pin 27 - 1 - (MODE3) all */
MX6_PAD_RGMII_RD3__GPIO6_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL),
/* pin 33 - 1 - (CLK125_EN) 125Mhz clockout enabled */
MX6_PAD_RGMII_RX_CTL__GPIO6_IO24 | MUX_PAD_CTRL(NO_PAD_CTRL),
/* pin 42 PHY nRST */
MX6_PAD_EIM_D23__GPIO3_IO23 | MUX_PAD_CTRL(NO_PAD_CTRL),
};
iomux_v3_cfg_t const enet_pads2[] = {
MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
};
iomux_v3_cfg_t const uart1_pads[] = {
MX6_PAD_SD3_DAT6__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
MX6_PAD_SD3_DAT7__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
};
iomux_v3_cfg_t const uart2_pads[] = {
MX6_PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
MX6_PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
MX6_PAD_EIM_D28__UART2_DTE_CTS_B | MUX_PAD_CTRL(UART_PAD_CTRL),
MX6_PAD_EIM_D29__UART2_RTS_B | MUX_PAD_CTRL(UART_PAD_CTRL),
};
iomux_v3_cfg_t const uart4_pads[] = {
MX6_PAD_CSI0_DAT12__UART4_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
MX6_PAD_CSI0_DAT13__UART4_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
MX6_PAD_CSI0_DAT16__UART4_RTS_B | MUX_PAD_CTRL(UART_PAD_CTRL),
MX6_PAD_CSI0_DAT17__UART4_CTS_B | MUX_PAD_CTRL(UART_PAD_CTRL),
};
struct i2c_pads_info i2c_pad_info0 = {
.scl = {
.i2c_mode = MX6_PAD_CSI0_DAT9__I2C1_SCL | PC_SCL,
.gpio_mode = MX6_PAD_CSI0_DAT9__GPIO5_IO27 | PC_SCL,
.gp = IMX_GPIO_NR(5, 27)
},
.sda = {
.i2c_mode = MX6_PAD_CSI0_DAT8__I2C1_SDA | PC,
.gpio_mode = MX6_PAD_CSI0_DAT8__GPIO5_IO26 | PC,
.gp = IMX_GPIO_NR(5, 26)
}
};
struct i2c_pads_info i2c_pad_info2 = {
.scl = {
.i2c_mode = MX6_PAD_GPIO_3__I2C3_SCL | PC_SCL,
.gpio_mode = MX6_PAD_GPIO_3__GPIO1_IO03 | PC_SCL,
.gp = IMX_GPIO_NR(1, 3)
},
.sda = {
.i2c_mode = MX6_PAD_GPIO_6__I2C3_SDA | PC,
.gpio_mode = MX6_PAD_GPIO_16__GPIO7_IO11 | PC,
.gp = IMX_GPIO_NR(7, 11)
}
};
/*
* This enet related pin-muxing and GPIO handling is done
* in SPL U-Boot. For early initialization. And to give the
* PHY some time to come out of reset before the U-Boot
* ethernet driver tries to access its registers via MDIO.
*/
int platinum_setup_enet(void)
{
gpio_direction_output(IMX_GPIO_NR(3, 23), 0);
gpio_direction_output(IMX_GPIO_NR(6, 30), 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);
imx_iomux_v3_setup_multiple_pads(enet_pads1, ARRAY_SIZE(enet_pads1));
gpio_direction_output(IMX_GPIO_NR(6, 24), 1);
/* Need delay 10ms according to KSZ9021 spec */
mdelay(10);
gpio_set_value(IMX_GPIO_NR(3, 23), 1);
udelay(100);
imx_iomux_v3_setup_multiple_pads(enet_pads2, ARRAY_SIZE(enet_pads2));
return 0;
}
int platinum_setup_i2c(void)
{
setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info0);
setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
return 0;
}
int platinum_setup_spi(void)
{
imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads));
imx_iomux_v3_setup_multiple_pads(ecspi2_pads, ARRAY_SIZE(ecspi2_pads));
return 0;
}
int platinum_setup_uart(void)
{
imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
imx_iomux_v3_setup_multiple_pads(uart4_pads, ARRAY_SIZE(uart4_pads));
return 0;
}
int platinum_phy_config(struct phy_device *phydev)
{
/* min rx data delay */
ksz9021_phy_extended_write(phydev, MII_KSZ9021_EXT_RGMII_RX_DATA_SKEW,
0x0);
/* min tx data delay */
ksz9021_phy_extended_write(phydev, MII_KSZ9021_EXT_RGMII_TX_DATA_SKEW,
0x0);
/* max rx/tx clock delay, min rx/tx control */
ksz9021_phy_extended_write(phydev, MII_KSZ9021_EXT_RGMII_CLOCK_SKEW,
0xf0f0);
if (phydev->drv->config)
phydev->drv->config(phydev);
return 0;
}
int platinum_init_gpio(void)
{
/* Default GPIO's */
/* Toggle CONFIG_n to reset fpga on every boot */
gpio_direction_output(IMX_GPIO_NR(5, 18), 0);
/* Need delay >=2uS */
udelay(3);
gpio_set_value(IMX_GPIO_NR(5, 18), 1);
/* Default pin 1,15 high - DLP_FLASH_WPZ */
gpio_direction_output(IMX_GPIO_NR(1, 15), 1);
return 0;
}
int platinum_init_usb(void)
{
return 0;
}
int platinum_init_finished(void)
{
return 0;
}
|
