board/nvidia/jetson-tk1/jetson-tk1.c

   1 /*
   2  * (C) Copyright 2014
   3  * NVIDIA Corporation <www.nvidia.com>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <dm.h>
  10 #include <power/as3722.h>
  11 #include <power/pmic.h>
  12
  13 #include <asm/arch/gpio.h>
  14 #include <asm/arch/pinmux.h>
  15
  16 #include "pinmux-config-jetson-tk1.h"
  17
  18 /*
  19  * Routine: pinmux_init
  20  * Description: Do individual peripheral pinmux configs
  21  */
  22 void pinmux_init(void)
  23 {
  24         pinmux_clear_tristate_input_clamping();
  25
  26         gpio_config_table(jetson_tk1_gpio_inits,
  27                           ARRAY_SIZE(jetson_tk1_gpio_inits));
  28
  29         pinmux_config_pingrp_table(jetson_tk1_pingrps,
  30                                    ARRAY_SIZE(jetson_tk1_pingrps));
  31
  32         pinmux_config_drvgrp_table(jetson_tk1_drvgrps,
  33                                    ARRAY_SIZE(jetson_tk1_drvgrps));
  34
  35         pinmux_config_mipipadctrlgrp_table(jetson_tk1_mipipadctrlgrps,
  36                                         ARRAY_SIZE(jetson_tk1_mipipadctrlgrps));
  37 }
  38
  39 #ifdef CONFIG_PCI_TEGRA
  40 /* TODO: Convert to driver model */
  41 static int as3722_sd_enable(struct udevice *pmic, unsigned int sd)
  42 {
  43         int err;
  44
  45         if (sd > 6)
  46                 return -EINVAL;
  47
  48         err = pmic_clrsetbits(pmic, AS3722_SD_CONTROL, 0, 1 << sd);
  49         if (err) {
  50                 pr_err("failed to update SD control register: %d", err);
  51                 return err;
  52         }
  53
  54         return 0;
  55 }
  56
  57 int tegra_pcie_board_init(void)
  58 {
  59         struct udevice *dev;
  60         int ret;
  61
  62         ret = uclass_get_device_by_driver(UCLASS_PMIC,
  63                                           DM_GET_DRIVER(pmic_as3722), &dev);
  64         if (ret) {
  65                 debug("%s: Failed to find PMIC\n", __func__);
  66                 return ret;
  67         }
  68
  69         ret = as3722_sd_enable(dev, 4);
  70         if (ret < 0) {
  71                 pr_err("failed to enable SD4: %d\n", ret);
  72                 return ret;
  73         }
  74
  75         ret = as3722_sd_set_voltage(dev, 4, 0x24);
  76         if (ret < 0) {
  77                 pr_err("failed to set SD4 voltage: %d\n", ret);
  78                 return ret;
  79         }
  80
  81         return 0;
  82 }
  83 #endif /* PCI */