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 DECLARE_GLOBAL_DATA_PTR;
  19
  20 /*
  21  * Routine: pinmux_init
  22  * Description: Do individual peripheral pinmux configs
  23  */
  24 void pinmux_init(void)
  25 {
  26         pinmux_clear_tristate_input_clamping();
  27
  28         gpio_config_table(jetson_tk1_gpio_inits,
  29                           ARRAY_SIZE(jetson_tk1_gpio_inits));
  30
  31         pinmux_config_pingrp_table(jetson_tk1_pingrps,
  32                                    ARRAY_SIZE(jetson_tk1_pingrps));
  33
  34         pinmux_config_drvgrp_table(jetson_tk1_drvgrps,
  35                                    ARRAY_SIZE(jetson_tk1_drvgrps));
  36
  37         pinmux_config_mipipadctrlgrp_table(jetson_tk1_mipipadctrlgrps,
  38                                         ARRAY_SIZE(jetson_tk1_mipipadctrlgrps));
  39 }
  40
  41 #ifdef CONFIG_PCI_TEGRA
  42 /* TODO: Convert to driver model */
  43 static int as3722_sd_enable(struct udevice *pmic, unsigned int sd)
  44 {
  45         int err;
  46
  47         if (sd > 6)
  48                 return -EINVAL;
  49
  50         err = pmic_clrsetbits(pmic, AS3722_SD_CONTROL, 0, 1 << sd);
  51         if (err) {
  52                 error("failed to update SD control register: %d", err);
  53                 return err;
  54         }
  55
  56         return 0;
  57 }
  58
  59 int tegra_pcie_board_init(void)
  60 {
  61         struct udevice *dev;
  62         int ret;
  63
  64         ret = uclass_get_device_by_driver(UCLASS_PMIC,
  65                                           DM_GET_DRIVER(pmic_as3722), &dev);
  66         if (ret) {
  67                 debug("%s: Failed to find PMIC\n", __func__);
  68                 return ret;
  69         }
  70
  71         ret = as3722_sd_enable(dev, 4);
  72         if (ret < 0) {
  73                 error("failed to enable SD4: %d\n", ret);
  74                 return ret;
  75         }
  76
  77         ret = as3722_sd_set_voltage(dev, 4, 0x24);
  78         if (ret < 0) {
  79                 error("failed to set SD4 voltage: %d\n", ret);
  80                 return ret;
  81         }
  82
  83         return 0;
  84 }
  85 #endif /* PCI */