board/nvidia/p2371-2180/p2371-2180.c

   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 <netdev.h>
  10 #include <i2c.h>
  11 #include <asm/arch/gpio.h>
  12 #include <asm/arch/pinmux.h>
  13 #include "../p2571/max77620_init.h"
  14 #include "pinmux-config-p2371-2180.h"
  15
  16 void pin_mux_mmc(void)
  17 {
  18         struct udevice *dev;
  19         uchar val;
  20         int ret;
  21
  22         /* Turn on MAX77620 LDO2 to 3.3V for SD card power */
  23         debug("%s: Set LDO2 for VDDIO_SDMMC_AP power to 3.3V\n", __func__);
  24         ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev);
  25         if (ret) {
  26                 printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
  27                 return;
  28         }
  29         /* 0xF2 for 3.3v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
  30         val = 0xF2;
  31         ret = dm_i2c_write(dev, MAX77620_CNFG1_L2_REG, &val, 1);
  32         if (ret)
  33                 printf("i2c_write 0 0x3c 0x27 failed: %d\n", ret);
  34 }
  35
  36 /*
  37  * Routine: pinmux_init
  38  * Description: Do individual peripheral pinmux configs
  39  */
  40 void pinmux_init(void)
  41 {
  42         pinmux_clear_tristate_input_clamping();
  43
  44         gpio_config_table(p2371_2180_gpio_inits,
  45                           ARRAY_SIZE(p2371_2180_gpio_inits));
  46
  47         pinmux_config_pingrp_table(p2371_2180_pingrps,
  48                                    ARRAY_SIZE(p2371_2180_pingrps));
  49
  50         pinmux_config_drvgrp_table(p2371_2180_drvgrps,
  51                                    ARRAY_SIZE(p2371_2180_drvgrps));
  52 }
  53
  54 #ifdef CONFIG_PCI_TEGRA
  55 int tegra_pcie_board_init(void)
  56 {
  57         struct udevice *dev;
  58         uchar val;
  59         int ret;
  60
  61         /* Turn on MAX77620 LDO1 to 1.05V for PEX power */
  62         debug("%s: Set LDO1 for PEX power to 1.05V\n", __func__);
  63         ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev);
  64         if (ret) {
  65                 printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
  66                 return -1;
  67         }
  68         /* 0xCA for 1.05v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
  69         val = 0xCA;
  70         ret = dm_i2c_write(dev, MAX77620_CNFG1_L1_REG, &val, 1);
  71         if (ret)
  72                 printf("i2c_write 0 0x3c 0x25 failed: %d\n", ret);
  73
  74         return 0;
  75 }
  76
  77 int board_eth_init(bd_t *bis)
  78 {
  79         return pci_eth_init(bis);
  80 }
  81 #endif /* PCI */