1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * (C) Copyright 2013-2015
3*4882a593Smuzhiyun * NVIDIA Corporation <www.nvidia.com>
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #include <common.h>
9*4882a593Smuzhiyun #include <i2c.h>
10*4882a593Smuzhiyun #include <asm/arch/gpio.h>
11*4882a593Smuzhiyun #include <asm/arch/pinmux.h>
12*4882a593Smuzhiyun #include "../p2571/max77620_init.h"
13*4882a593Smuzhiyun #include "pinmux-config-p2371-2180.h"
14*4882a593Smuzhiyun
pin_mux_mmc(void)15*4882a593Smuzhiyun void pin_mux_mmc(void)
16*4882a593Smuzhiyun {
17*4882a593Smuzhiyun struct udevice *dev;
18*4882a593Smuzhiyun uchar val;
19*4882a593Smuzhiyun int ret;
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun /* Turn on MAX77620 LDO2 to 3.3V for SD card power */
22*4882a593Smuzhiyun debug("%s: Set LDO2 for VDDIO_SDMMC_AP power to 3.3V\n", __func__);
23*4882a593Smuzhiyun ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev);
24*4882a593Smuzhiyun if (ret) {
25*4882a593Smuzhiyun printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
26*4882a593Smuzhiyun return;
27*4882a593Smuzhiyun }
28*4882a593Smuzhiyun /* 0xF2 for 3.3v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
29*4882a593Smuzhiyun val = 0xF2;
30*4882a593Smuzhiyun ret = dm_i2c_write(dev, MAX77620_CNFG1_L2_REG, &val, 1);
31*4882a593Smuzhiyun if (ret)
32*4882a593Smuzhiyun printf("i2c_write 0 0x3c 0x27 failed: %d\n", ret);
33*4882a593Smuzhiyun
34*4882a593Smuzhiyun /* Disable LDO4 discharge */
35*4882a593Smuzhiyun ret = dm_i2c_read(dev, MAX77620_CNFG2_L4_REG, &val, 1);
36*4882a593Smuzhiyun if (ret) {
37*4882a593Smuzhiyun printf("i2c_read 0 0x3c 0x2c failed: %d\n", ret);
38*4882a593Smuzhiyun } else {
39*4882a593Smuzhiyun val &= ~BIT(1); /* ADE */
40*4882a593Smuzhiyun ret = dm_i2c_write(dev, MAX77620_CNFG2_L4_REG, &val, 1);
41*4882a593Smuzhiyun if (ret)
42*4882a593Smuzhiyun printf("i2c_write 0 0x3c 0x2c failed: %d\n", ret);
43*4882a593Smuzhiyun }
44*4882a593Smuzhiyun
45*4882a593Smuzhiyun /* Set MBLPD */
46*4882a593Smuzhiyun ret = dm_i2c_read(dev, MAX77620_CNFGGLBL1_REG, &val, 1);
47*4882a593Smuzhiyun if (ret) {
48*4882a593Smuzhiyun printf("i2c_write 0 0x3c 0x00 failed: %d\n", ret);
49*4882a593Smuzhiyun } else {
50*4882a593Smuzhiyun val |= BIT(6); /* MBLPD */
51*4882a593Smuzhiyun ret = dm_i2c_write(dev, MAX77620_CNFGGLBL1_REG, &val, 1);
52*4882a593Smuzhiyun if (ret)
53*4882a593Smuzhiyun printf("i2c_write 0 0x3c 0x00 failed: %d\n", ret);
54*4882a593Smuzhiyun }
55*4882a593Smuzhiyun }
56*4882a593Smuzhiyun
57*4882a593Smuzhiyun /*
58*4882a593Smuzhiyun * Routine: pinmux_init
59*4882a593Smuzhiyun * Description: Do individual peripheral pinmux configs
60*4882a593Smuzhiyun */
pinmux_init(void)61*4882a593Smuzhiyun void pinmux_init(void)
62*4882a593Smuzhiyun {
63*4882a593Smuzhiyun pinmux_clear_tristate_input_clamping();
64*4882a593Smuzhiyun
65*4882a593Smuzhiyun gpio_config_table(p2371_2180_gpio_inits,
66*4882a593Smuzhiyun ARRAY_SIZE(p2371_2180_gpio_inits));
67*4882a593Smuzhiyun
68*4882a593Smuzhiyun pinmux_config_pingrp_table(p2371_2180_pingrps,
69*4882a593Smuzhiyun ARRAY_SIZE(p2371_2180_pingrps));
70*4882a593Smuzhiyun
71*4882a593Smuzhiyun pinmux_config_drvgrp_table(p2371_2180_drvgrps,
72*4882a593Smuzhiyun ARRAY_SIZE(p2371_2180_drvgrps));
73*4882a593Smuzhiyun }
74*4882a593Smuzhiyun
75*4882a593Smuzhiyun #ifdef CONFIG_PCI_TEGRA
tegra_pcie_board_init(void)76*4882a593Smuzhiyun int tegra_pcie_board_init(void)
77*4882a593Smuzhiyun {
78*4882a593Smuzhiyun struct udevice *dev;
79*4882a593Smuzhiyun uchar val;
80*4882a593Smuzhiyun int ret;
81*4882a593Smuzhiyun
82*4882a593Smuzhiyun /* Turn on MAX77620 LDO1 to 1.05V for PEX power */
83*4882a593Smuzhiyun debug("%s: Set LDO1 for PEX power to 1.05V\n", __func__);
84*4882a593Smuzhiyun ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev);
85*4882a593Smuzhiyun if (ret) {
86*4882a593Smuzhiyun printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
87*4882a593Smuzhiyun return -1;
88*4882a593Smuzhiyun }
89*4882a593Smuzhiyun /* 0xCA for 1.05v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
90*4882a593Smuzhiyun val = 0xCA;
91*4882a593Smuzhiyun ret = dm_i2c_write(dev, MAX77620_CNFG1_L1_REG, &val, 1);
92*4882a593Smuzhiyun if (ret)
93*4882a593Smuzhiyun printf("i2c_write 0 0x3c 0x25 failed: %d\n", ret);
94*4882a593Smuzhiyun
95*4882a593Smuzhiyun return 0;
96*4882a593Smuzhiyun }
97*4882a593Smuzhiyun #endif /* PCI */
98