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

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