board/nvidia/dalmore/dalmore.c

   1 /*
   2  * Copyright (c) 2010-2013, NVIDIA CORPORATION.  All rights reserved.
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms and conditions of the GNU General Public License,
   6  * version 2, as published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  11  * more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15  */
  16
  17 #include <common.h>
  18 #include <dm.h>
  19 #include <asm/arch/pinmux.h>
  20 #include <asm/arch/gp_padctrl.h>
  21 #include "pinmux-config-dalmore.h"
  22 #include <i2c.h>
  23
  24 #define BAT_I2C_ADDRESS         0x48    /* TPS65090 charger */
  25 #define PMU_I2C_ADDRESS         0x58    /* TPS65913 PMU */
  26
  27 /*
  28  * Routine: pinmux_init
  29  * Description: Do individual peripheral pinmux configs
  30  */
  31 void pinmux_init(void)
  32 {
  33         pinmux_config_pingrp_table(tegra114_pinmux_set_nontristate,
  34                 ARRAY_SIZE(tegra114_pinmux_set_nontristate));
  35
  36         pinmux_config_pingrp_table(tegra114_pinmux_common,
  37                 ARRAY_SIZE(tegra114_pinmux_common));
  38
  39         pinmux_config_pingrp_table(unused_pins_lowpower,
  40                 ARRAY_SIZE(unused_pins_lowpower));
  41
  42         /* Initialize any non-default pad configs (APB_MISC_GP regs) */
  43         pinmux_config_drvgrp_table(dalmore_padctrl,
  44                 ARRAY_SIZE(dalmore_padctrl));
  45 }
  46
  47 #if defined(CONFIG_TEGRA_MMC)
  48 /*
  49  * Do I2C/PMU writes to bring up SD card bus power
  50  *
  51  */
  52 void board_sdmmc_voltage_init(void)
  53 {
  54         struct udevice *dev;
  55         uchar reg, data_buffer[1];
  56         int ret;
  57
  58         ret = i2c_get_chip_for_busnum(0, PMU_I2C_ADDRESS, 1, &dev);
  59         if (ret) {
  60                 debug("%s: Cannot find PMIC I2C chip\n", __func__);
  61                 return;
  62         }
  63
  64         /* TPS65913: LDO9_VOLTAGE = 3.3V */
  65         data_buffer[0] = 0x31;
  66         reg = 0x61;
  67
  68         ret = dm_i2c_write(dev, reg, data_buffer, 1);
  69         if (ret)
  70                 printf("%s: PMU i2c_write %02X<-%02X returned %d\n",
  71                         __func__, reg, data_buffer[0], ret);
  72
  73         /* TPS65913: LDO9_CTRL = Active */
  74         data_buffer[0] = 0x01;
  75         reg = 0x60;
  76
  77         ret = dm_i2c_write(dev, reg, data_buffer, 1);
  78         if (ret)
  79                 printf("%s: PMU i2c_write %02X<-%02X returned %d\n",
  80                         __func__, reg, data_buffer[0], ret);
  81
  82         /* TPS65090: FET6_CTRL = enable output auto discharge, enable FET6 */
  83         data_buffer[0] = 0x03;
  84         reg = 0x14;
  85
  86         ret = i2c_get_chip_for_busnum(0, BAT_I2C_ADDRESS, 1, &dev);
  87         if (ret) {
  88                 debug("%s: Cannot find charger I2C chip\n", __func__);
  89                 return;
  90         }
  91         ret = dm_i2c_write(dev, reg, data_buffer, 1);
  92         if (ret)
  93                 printf("%s: BAT i2c_write %02X<-%02X returned %d\n",
  94                         __func__, reg, data_buffer[0], ret);
  95 }
  96
  97 /*
  98  * Routine: pin_mux_mmc
  99  * Description: setup the MMC muxes, power rails, etc.
 100  */
 101 void pin_mux_mmc(void)
 102 {
 103         /*
 104          * NOTE: We don't do mmc-specific pin muxes here.
 105          * They were done globally in pinmux_init().
 106          */
 107
 108         /* Bring up the SDIO3 power rail */
 109         board_sdmmc_voltage_init();
 110 }
 111 #endif /* MMC */