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
|
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2014, 2015 O.S. Systems Software LTDA.
* Copyright (C) 2014 Kynetics LLC.
* Copyright (C) 2014 Revolution Robotics, Inc.
*
* Author: Otavio Salvador <otavio@ossystems.com.br>
*/
#include <init.h>
#include <asm/arch/clock.h>
#include <asm/arch/iomux.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/mx6-pins.h>
#include <asm/arch/sys_proto.h>
#include <asm/gpio.h>
#include <asm/mach-imx/iomux-v3.h>
#include <asm/mach-imx/mxc_i2c.h>
#include <asm/io.h>
#include <linux/sizes.h>
#include <common.h>
#include <watchdog.h>
#include <fsl_esdhc_imx.h>
#include <i2c.h>
#include <mmc.h>
#include <usb.h>
#include <power/pmic.h>
#include <power/max77696_pmic.h>
DECLARE_GLOBAL_DATA_PTR;
#define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
PAD_CTL_SRE_FAST | PAD_CTL_HYS | \
PAD_CTL_LVE)
#define USDHC_PAD_CTRL (PAD_CTL_PUS_22K_UP | \
PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \
PAD_CTL_SRE_FAST | PAD_CTL_HYS | \
PAD_CTL_LVE)
#define I2C_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
PAD_CTL_ODE | PAD_CTL_SRE_FAST)
int dram_init(void)
{
gd->ram_size = imx_ddr_size();
return 0;
}
static void setup_iomux_uart(void)
{
static iomux_v3_cfg_t const uart1_pads[] = {
MX6_PAD_UART1_TXD__UART1_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
MX6_PAD_UART1_RXD__UART1_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
};
imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
}
static struct fsl_esdhc_cfg usdhc_cfg[1] = {
{USDHC2_BASE_ADDR, 0, 0, 0, 1},
};
int board_mmc_getcd(struct mmc *mmc)
{
return 1; /* Assume boot SD always present */
}
int board_mmc_init(bd_t *bis)
{
static iomux_v3_cfg_t const usdhc2_pads[] = {
MX6_PAD_SD2_CLK__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD2_CMD__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD2_RST__USDHC2_RST | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD2_DAT0__USDHC2_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD2_DAT1__USDHC2_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD2_DAT2__USDHC2_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD2_DAT3__USDHC2_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD2_DAT4__USDHC2_DAT4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD2_DAT5__USDHC2_DAT5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD2_DAT6__USDHC2_DAT6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD2_DAT7__USDHC2_DAT7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
};
imx_iomux_v3_setup_multiple_pads(usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
}
int board_usb_phy_mode(int port)
{
return USB_INIT_DEVICE;
}
/* I2C1 for PMIC */
#define I2C_PMIC 0
#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
struct i2c_pads_info i2c_pad_info1 = {
.sda = {
.i2c_mode = MX6_PAD_I2C1_SDA__I2C1_SDA | PC,
.gpio_mode = MX6_PAD_I2C1_SDA__GPIO_3_13 | PC,
.gp = IMX_GPIO_NR(3, 13),
},
.scl = {
.i2c_mode = MX6_PAD_I2C1_SCL__I2C1_SCL | PC,
.gpio_mode = MX6_PAD_I2C1_SCL__GPIO_3_12 | PC,
.gp = IMX_GPIO_NR(3, 12),
},
};
int power_init_board(void)
{
struct pmic *p;
int ret;
unsigned int reg;
ret = power_max77696_init(I2C_PMIC);
if (ret)
return ret;
p = pmic_get("MAX77696");
if (!p)
return -EINVAL;
ret = pmic_reg_read(p, CID, ®);
if (ret)
return ret;
printf("PMIC: MAX77696 detected, rev=0x%x\n", reg);
return pmic_probe(p);
}
int board_early_init_f(void)
{
setup_iomux_uart();
return 0;
}
int board_init(void)
{
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
return 0;
}
int board_late_init(void)
{
#ifdef CONFIG_HW_WATCHDOG
hw_watchdog_init();
#endif
return 0;
}
int checkboard(void)
{
puts("Board: WaRP Board\n");
return 0;
}
|
