board/toradex/apalis-tk1/apalis-tk1.c

   1 /*
   2  * Copyright (c) 2016 Toradex, Inc.
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <asm/arch-tegra/ap.h>
   9 #include <asm/gpio.h>
  10 #include <asm/io.h>
  11 #include <asm/arch/gpio.h>
  12 #include <asm/arch/pinmux.h>
  13 #include <power/as3722.h>
  14
  15 #include "../common/tdx-common.h"
  16 #include "pinmux-config-apalis-tk1.h"
  17
  18 #define LAN_RESET_N TEGRA_GPIO(S, 2)
  19
  20 int arch_misc_init(void)
  21 {
  22         if (readl(NV_PA_BASE_SRAM + NVBOOTINFOTABLE_BOOTTYPE) ==
  23             NVBOOTTYPE_RECOVERY)
  24                 printf("USB recovery mode\n");
  25
  26         return 0;
  27 }
  28
  29 int checkboard(void)
  30 {
  31         puts("Model: Toradex Apalis TK1 2GB\n");
  32
  33         return 0;
  34 }
  35
  36 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
  37 int ft_board_setup(void *blob, bd_t *bd)
  38 {
  39         return ft_common_board_setup(blob, bd);
  40 }
  41 #endif
  42
  43 /*
  44  * Routine: pinmux_init
  45  * Description: Do individual peripheral pinmux configs
  46  */
  47 void pinmux_init(void)
  48 {
  49         pinmux_clear_tristate_input_clamping();
  50
  51         gpio_config_table(apalis_tk1_gpio_inits,
  52                           ARRAY_SIZE(apalis_tk1_gpio_inits));
  53
  54         pinmux_config_pingrp_table(apalis_tk1_pingrps,
  55                                    ARRAY_SIZE(apalis_tk1_pingrps));
  56
  57         pinmux_config_drvgrp_table(apalis_tk1_drvgrps,
  58                                    ARRAY_SIZE(apalis_tk1_drvgrps));
  59 }
  60
  61 #ifdef CONFIG_PCI_TEGRA
  62 int tegra_pcie_board_init(void)
  63 {
  64         /* TODO: Convert to driver model
  65         struct udevice *pmic;
  66         int err;
  67
  68         err = as3722_init(&pmic);
  69         if (err) {
  70                 error("failed to initialize AS3722 PMIC: %d\n", err);
  71                 return err;
  72         }
  73
  74         err = as3722_sd_enable(pmic, 4);
  75         if (err < 0) {
  76                 error("failed to enable SD4: %d\n", err);
  77                 return err;
  78         }
  79
  80         err = as3722_sd_set_voltage(pmic, 4, 0x24);
  81         if (err < 0) {
  82                 error("failed to set SD4 voltage: %d\n", err);
  83                 return err;
  84         }
  85
  86         err = as3722_gpio_configure(pmic, 1, AS3722_GPIO_OUTPUT_VDDH |
  87                                              AS3722_GPIO_INVERT);
  88         if (err < 0) {
  89                 error("failed to configure GPIO#1 as output: %d\n", err);
  90                 return err;
  91         }
  92
  93         err = as3722_gpio_direction_output(pmic, 2, 1);
  94         if (err < 0) {
  95                 error("failed to set GPIO#2 high: %d\n", err);
  96                 return err;
  97         }
  98         */
  99
 100         /* Reset I210 Gigabit Ethernet Controller */
 101         gpio_request(LAN_RESET_N, "LAN_RESET_N");
 102         gpio_direction_output(LAN_RESET_N, 0);
 103
 104         /*
 105          * Make sure we don't get any back feeding from LAN_WAKE_N resp.
 106          * DEV_OFF_N
 107          */
 108         gpio_request(TEGRA_GPIO(O, 5), "LAN_WAKE_N");
 109         gpio_direction_output(TEGRA_GPIO(O, 5), 0);
 110
 111         gpio_request(TEGRA_GPIO(O, 6), "LAN_DEV_OFF_N");
 112         gpio_direction_output(TEGRA_GPIO(O, 6), 0);
 113
 114         /* Make sure LDO9 and LDO10 are initially enabled @ 0V */
 115         /* TODO: Convert to driver model
 116         err = as3722_ldo_enable(pmic, 9);
 117         if (err < 0) {
 118                 error("failed to enable LDO9: %d\n", err);
 119                 return err;
 120         }
 121         err = as3722_ldo_enable(pmic, 10);
 122         if (err < 0) {
 123                 error("failed to enable LDO10: %d\n", err);
 124                 return err;
 125         }
 126         err = as3722_ldo_set_voltage(pmic, 9, 0x80);
 127         if (err < 0) {
 128                 error("failed to set LDO9 voltage: %d\n", err);
 129                 return err;
 130         }
 131         err = as3722_ldo_set_voltage(pmic, 10, 0x80);
 132         if (err < 0) {
 133                 error("failed to set LDO10 voltage: %d\n", err);
 134                 return err;
 135         }
 136         */
 137
 138         mdelay(100);
 139
 140         /* Make sure controller gets enabled by disabling DEV_OFF_N */
 141         gpio_set_value(TEGRA_GPIO(O, 6), 1);
 142
 143         /* Enable LDO9 and LDO10 for +V3.3_ETH on patched prototypes */
 144         /* TODO: Convert to driver model
 145         err = as3722_ldo_set_voltage(pmic, 9, 0xff);
 146         if (err < 0) {
 147                 error("failed to set LDO9 voltage: %d\n", err);
 148                 return err;
 149         }
 150         err = as3722_ldo_set_voltage(pmic, 10, 0xff);
 151         if (err < 0) {
 152                 error("failed to set LDO10 voltage: %d\n", err);
 153                 return err;
 154         }
 155         */
 156
 157         mdelay(100);
 158         gpio_set_value(LAN_RESET_N, 1);
 159
 160 #ifdef APALIS_TK1_PCIE_EVALBOARD_INIT
 161 #define PEX_PERST_N     TEGRA_GPIO(DD, 1) /* Apalis GPIO7 */
 162 #define RESET_MOCI_CTRL TEGRA_GPIO(U, 4)
 163
 164         /* Reset PLX PEX 8605 PCIe Switch plus PCIe devices on Apalis Evaluation
 165            Board */
 166         gpio_request(PEX_PERST_N, "PEX_PERST_N");
 167         gpio_request(RESET_MOCI_CTRL, "RESET_MOCI_CTRL");
 168         gpio_direction_output(PEX_PERST_N, 0);
 169         gpio_direction_output(RESET_MOCI_CTRL, 0);
 170         /* Must be asserted for 100 ms after power and clocks are stable */
 171         mdelay(100);
 172         gpio_set_value(PEX_PERST_N, 1);
 173         /* Err_5: PEX_REFCLK_OUTpx/nx Clock Outputs is not Guaranteed Until
 174            900 us After PEX_PERST# De-assertion */
 175         mdelay(1);
 176         gpio_set_value(RESET_MOCI_CTRL, 1);
 177 #endif /* APALIS_T30_PCIE_EVALBOARD_INIT */
 178
 179         return 0;
 180 }
 181 #endif /* CONFIG_PCI_TEGRA */