board/nvidia/dalmore/dalmore.c

   1 /*
   2  * Copyright (c) 2010-2013, NVIDIA CORPORATION.  All rights reserved.
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0
   5  */
   6
   7 #include <common.h>
   8 #include <dm.h>
   9 #include <asm/arch/pinmux.h>
  10 #include <asm/arch/gp_padctrl.h>
  11 #include "pinmux-config-dalmore.h"
  12 #include <i2c.h>
  13
  14 #define BAT_I2C_ADDRESS         0x48    /* TPS65090 charger */
  15 #define PMU_I2C_ADDRESS         0x58    /* TPS65913 PMU */
  16
  17 /*
  18  * Routine: pinmux_init
  19  * Description: Do individual peripheral pinmux configs
  20  */
  21 void pinmux_init(void)
  22 {
  23         pinmux_config_pingrp_table(tegra114_pinmux_set_nontristate,
  24                 ARRAY_SIZE(tegra114_pinmux_set_nontristate));
  25
  26         pinmux_config_pingrp_table(tegra114_pinmux_common,
  27                 ARRAY_SIZE(tegra114_pinmux_common));
  28
  29         pinmux_config_pingrp_table(unused_pins_lowpower,
  30                 ARRAY_SIZE(unused_pins_lowpower));
  31
  32         /* Initialize any non-default pad configs (APB_MISC_GP regs) */
  33         pinmux_config_drvgrp_table(dalmore_padctrl,
  34                 ARRAY_SIZE(dalmore_padctrl));
  35 }
  36
  37 #if defined(CONFIG_TEGRA_MMC)
  38 /*
  39  * Do I2C/PMU writes to bring up SD card bus power
  40  *
  41  */
  42 void board_sdmmc_voltage_init(void)
  43 {
  44         struct udevice *dev;
  45         uchar reg, data_buffer[1];
  46         int ret;
  47
  48         ret = i2c_get_chip_for_busnum(0, PMU_I2C_ADDRESS, 1, &dev);
  49         if (ret) {
  50                 debug("%s: Cannot find PMIC I2C chip\n", __func__);
  51                 return;
  52         }
  53
  54         /* TPS65913: LDO9_VOLTAGE = 3.3V */
  55         data_buffer[0] = 0x31;
  56         reg = 0x61;
  57
  58         ret = dm_i2c_write(dev, reg, data_buffer, 1);
  59         if (ret)
  60                 printf("%s: PMU i2c_write %02X<-%02X returned %d\n",
  61                         __func__, reg, data_buffer[0], ret);
  62
  63         /* TPS65913: LDO9_CTRL = Active */
  64         data_buffer[0] = 0x01;
  65         reg = 0x60;
  66
  67         ret = dm_i2c_write(dev, reg, data_buffer, 1);
  68         if (ret)
  69                 printf("%s: PMU i2c_write %02X<-%02X returned %d\n",
  70                         __func__, reg, data_buffer[0], ret);
  71
  72         /* TPS65090: FET6_CTRL = enable output auto discharge, enable FET6 */
  73         data_buffer[0] = 0x03;
  74         reg = 0x14;
  75
  76         ret = i2c_get_chip_for_busnum(0, BAT_I2C_ADDRESS, 1, &dev);
  77         if (ret) {
  78                 debug("%s: Cannot find charger I2C chip\n", __func__);
  79                 return;
  80         }
  81         ret = dm_i2c_write(dev, reg, data_buffer, 1);
  82         if (ret)
  83                 printf("%s: BAT i2c_write %02X<-%02X returned %d\n",
  84                         __func__, reg, data_buffer[0], ret);
  85 }
  86
  87 /*
  88  * Routine: pin_mux_mmc
  89  * Description: setup the MMC muxes, power rails, etc.
  90  */
  91 void pin_mux_mmc(void)
  92 {
  93         /*
  94          * NOTE: We don't do mmc-specific pin muxes here.
  95          * They were done globally in pinmux_init().
  96          */
  97
  98         /* Bring up the SDIO3 power rail */
  99         board_sdmmc_voltage_init();
 100 }
 101 #endif /* MMC */