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
|
/*
* (C) Copyright 2010-2013
* NVIDIA Corporation <www.nvidia.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <asm/arch/pinmux.h>
#include <asm/arch/gp_padctrl.h>
#include <asm/arch/gpio.h>
#include <asm/gpio.h>
#include "pinmux-config-cardhu.h"
#include <i2c.h>
#include <netdev.h>
#define PMU_I2C_ADDRESS 0x2D
#define MAX_I2C_RETRY 3
/*
* Routine: pinmux_init
* Description: Do individual peripheral pinmux configs
*/
void pinmux_init(void)
{
pinmux_config_pingrp_table(tegra3_pinmux_common,
ARRAY_SIZE(tegra3_pinmux_common));
pinmux_config_pingrp_table(unused_pins_lowpower,
ARRAY_SIZE(unused_pins_lowpower));
/* Initialize any non-default pad configs (APB_MISC_GP regs) */
pinmux_config_drvgrp_table(cardhu_padctrl, ARRAY_SIZE(cardhu_padctrl));
}
#if defined(CONFIG_TEGRA_MMC)
/*
* Do I2C/PMU writes to bring up SD card bus power
*
*/
void board_sdmmc_voltage_init(void)
{
struct udevice *dev;
uchar reg, data_buffer[1];
int ret;
int i;
ret = i2c_get_chip_for_busnum(0, PMU_I2C_ADDRESS, 1, &dev);
if (ret) {
debug("%s: Cannot find PMIC I2C chip\n", __func__);
return;
}
/* TPS659110: LDO5_REG = 3.3v, ACTIVE to SDMMC1 */
data_buffer[0] = 0x65;
reg = 0x32;
for (i = 0; i < MAX_I2C_RETRY; ++i) {
if (dm_i2c_write(dev, reg, data_buffer, 1))
udelay(100);
}
/* TPS659110: GPIO7_REG = PDEN, output a 1 to EN_3V3_SYS */
data_buffer[0] = 0x09;
reg = 0x67;
for (i = 0; i < MAX_I2C_RETRY; ++i) {
if (dm_i2c_write(dev, reg, data_buffer, 1))
udelay(100);
}
}
/*
* Routine: pin_mux_mmc
* Description: setup the MMC muxes, power rails, etc.
*/
void pin_mux_mmc(void)
{
/*
* NOTE: We don't do mmc-specific pin muxes here.
* They were done globally in pinmux_init().
*/
/* Bring up the SDIO1 power rail */
board_sdmmc_voltage_init();
}
#endif /* MMC */
#ifdef CONFIG_PCI_TEGRA
int tegra_pcie_board_init(void)
{
struct udevice *dev;
u8 addr, data[1];
int err;
err = i2c_get_chip_for_busnum(0, PMU_I2C_ADDRESS, 1, &dev);
if (err) {
debug("failed to find PMU bus\n");
return err;
}
/* TPS659110: LDO1_REG = 1.05V, ACTIVE */
data[0] = 0x15;
addr = 0x30;
err = dm_i2c_write(dev, addr, data, 1);
if (err) {
debug("failed to set VDD supply\n");
return err;
}
/* GPIO: PEX = 3.3V */
err = gpio_request(GPIO_PL7, "PEX");
if (err < 0)
return err;
gpio_direction_output(GPIO_PL7, 1);
/* TPS659110: LDO2_REG = 1.05V, ACTIVE */
data[0] = 0x15;
addr = 0x31;
err = dm_i2c_write(dev, addr, data, 1);
if (err) {
debug("failed to set AVDD supply\n");
return err;
}
return 0;
}
int board_eth_init(bd_t *bis)
{
return pci_eth_init(bis);
}
#endif /* PCI */
|
