board/toradex/apalis_t30/apalis_t30.c

   1 /*
   2  *  (C) Copyright 2014
   3  *  Marcel Ziswiler <marcel@ziswiler.com>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <asm/arch/gp_padctrl.h>
  10 #include <asm/arch/pinmux.h>
  11 #include <asm/arch-tegra/ap.h>
  12 #include <asm/arch-tegra/tegra.h>
  13 #include <asm/gpio.h>
  14 #include <asm/io.h>
  15 #include <dm.h>
  16 #include <i2c.h>
  17
  18 #include "pinmux-config-apalis_t30.h"
  19
  20 #define PMU_I2C_ADDRESS         0x2D
  21 #define MAX_I2C_RETRY           3
  22
  23 int arch_misc_init(void)
  24 {
  25         if (readl(NV_PA_BASE_SRAM + NVBOOTINFOTABLE_BOOTTYPE) ==
  26             NVBOOTTYPE_RECOVERY)
  27                 printf("USB recovery mode\n");
  28
  29         return 0;
  30 }
  31
  32 /*
  33  * Routine: pinmux_init
  34  * Description: Do individual peripheral pinmux configs
  35  */
  36 void pinmux_init(void)
  37 {
  38         pinmux_config_pingrp_table(tegra3_pinmux_common,
  39                                    ARRAY_SIZE(tegra3_pinmux_common));
  40
  41         pinmux_config_pingrp_table(unused_pins_lowpower,
  42                                    ARRAY_SIZE(unused_pins_lowpower));
  43
  44         /* Initialize any non-default pad configs (APB_MISC_GP regs) */
  45         pinmux_config_drvgrp_table(apalis_t30_padctrl,
  46                                    ARRAY_SIZE(apalis_t30_padctrl));
  47 }
  48
  49 #ifdef CONFIG_PCI_TEGRA
  50 int tegra_pcie_board_init(void)
  51 {
  52         struct udevice *dev;
  53         u8 addr, data[1];
  54         int err;
  55
  56         err = i2c_get_chip_for_busnum(0, PMU_I2C_ADDRESS, 1, &dev);
  57         if (err) {
  58                 debug("%s: Cannot find PMIC I2C chip\n", __func__);
  59                 return err;
  60         }
  61
  62         /* TPS659110: VDD2_OP_REG = 1.05V */
  63         data[0] = 0x27;
  64         addr = 0x25;
  65
  66         err = dm_i2c_write(dev, addr, data, 1);
  67         if (err) {
  68                 debug("failed to set VDD supply\n");
  69                 return err;
  70         }
  71
  72         /* TPS659110: VDD2_REG 7.5 mV/us, ACTIVE */
  73         data[0] = 0x0D;
  74         addr = 0x24;
  75
  76         err = dm_i2c_write(dev, addr, data, 1);
  77         if (err) {
  78                 debug("failed to enable VDD supply\n");
  79                 return err;
  80         }
  81
  82         /* TPS659110: LDO6_REG = 1.1V, ACTIVE */
  83         data[0] = 0x0D;
  84         addr = 0x35;
  85
  86         err = dm_i2c_write(dev, addr, data, 1);
  87         if (err) {
  88                 debug("failed to set AVDD supply\n");
  89                 return err;
  90         }
  91
  92         return 0;
  93 }
  94 #endif /* CONFIG_PCI_TEGRA */