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