1// SPDX-License-Identifier: GPL-2.0+ 2/* 3 * Copyright (C) 2012 Lucas Stach 4 */ 5 6#include <common.h> 7#include <env.h> 8#include <fdt_support.h> 9#include <init.h> 10#include <log.h> 11#include <asm/arch/clock.h> 12#include <asm/arch/funcmux.h> 13#include <asm/arch/pinmux.h> 14#include <asm/arch-tegra/ap.h> 15#include <asm/arch-tegra/board.h> 16#include <asm/arch-tegra/tegra.h> 17#include <asm/global_data.h> 18#include <asm/gpio.h> 19#include <asm/io.h> 20#include <i2c.h> 21#include <nand.h> 22#include <linux/delay.h> 23#include "../common/tdx-common.h" 24 25DECLARE_GLOBAL_DATA_PTR; 26 27#define PMU_I2C_ADDRESS 0x34 28#define MAX_I2C_RETRY 3 29#define PMU_SUPPLYENE 0x14 30#define PMU_SUPPLYENE_SYSINEN (1<<5) 31#define PMU_SUPPLYENE_EXITSLREQ (1<<1) 32 33int arch_misc_init(void) 34{ 35 /* Disable PMIC sleep mode on low supply voltage */ 36 struct udevice *dev; 37 u8 addr, data[1]; 38 int err; 39 40 err = i2c_get_chip_for_busnum(0, PMU_I2C_ADDRESS, 1, &dev); 41 if (err) { 42 debug("%s: Cannot find PMIC I2C chip\n", __func__); 43 return err; 44 } 45 46 addr = PMU_SUPPLYENE; 47 48 err = dm_i2c_read(dev, addr, data, 1); 49 if (err) { 50 debug("failed to get PMU_SUPPLYENE\n"); 51 return err; 52 } 53 54 data[0] &= ~PMU_SUPPLYENE_SYSINEN; 55 data[0] |= PMU_SUPPLYENE_EXITSLREQ; 56 57 err = dm_i2c_write(dev, addr, data, 1); 58 if (err) { 59 debug("failed to set PMU_SUPPLYENE\n"); 60 return err; 61 } 62 63 /* make sure SODIMM pin 87 nRESET_OUT is released properly */ 64 pinmux_set_func(PMUX_PINGRP_ATA, PMUX_FUNC_GMI); 65 66 if (readl(NV_PA_BASE_SRAM + NVBOOTINFOTABLE_BOOTTYPE) == 67 NVBOOTTYPE_RECOVERY) 68 printf("USB recovery mode\n"); 69 70 return 0; 71} 72 73#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) 74int ft_board_setup(void *blob, struct bd_info *bd) 75{ 76 u8 enetaddr[6]; 77 78 /* MAC addr */ 79 if (eth_env_get_enetaddr("ethaddr", enetaddr)) { 80 int err = fdt_find_and_setprop(blob, 81 "/usb@7d004000/ethernet@1", 82 "local-mac-address", enetaddr, 6, 0); 83 84 /* Older device trees might have used a different node name */ 85 if (err < 0) 86 err = fdt_find_and_setprop(blob, 87 "/usb@7d004000/asix@1", 88 "local-mac-address", enetaddr, 6, 0); 89 90 if (err >= 0) 91 puts(" MAC address updated...\n"); 92 } 93 94 return ft_common_board_setup(blob, bd); 95} 96#endif 97 98#ifdef CONFIG_MMC_SDHCI_TEGRA 99/* 100 * Routine: pin_mux_mmc 101 * Description: setup the pin muxes/tristate values for the SDMMC(s) 102 */ 103void pin_mux_mmc(void) 104{ 105 funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATB_GMA_4_BIT); 106 pinmux_tristate_disable(PMUX_PINGRP_GMB); 107} 108#endif 109 110#ifdef CONFIG_TEGRA_NAND 111void pin_mux_nand(void) 112{ 113 funcmux_select(PERIPH_ID_NDFLASH, FUNCMUX_NDFLASH_KBC_8_BIT); 114 115 /* 116 * configure pingroup ATC to something unrelated to 117 * avoid ATC overriding KBC 118 */ 119 pinmux_set_func(PMUX_PINGRP_ATC, PMUX_FUNC_GMI); 120} 121#endif 122 123#ifdef CONFIG_USB_EHCI_TEGRA 124void pin_mux_usb(void) 125{ 126 /* module internal USB bus to connect ethernet chipset */ 127 funcmux_select(PERIPH_ID_USB2, FUNCMUX_USB2_ULPI); 128 129 /* ULPI reference clock output */ 130 pinmux_set_func(PMUX_PINGRP_CDEV2, PMUX_FUNC_PLLP_OUT4); 131 pinmux_tristate_disable(PMUX_PINGRP_CDEV2); 132 133 /* PHY reset GPIO */ 134 pinmux_tristate_disable(PMUX_PINGRP_UAC); 135 136 /* VBus GPIO */ 137 pinmux_tristate_disable(PMUX_PINGRP_DTE); 138 139 /* Reset ASIX using LAN_RESET */ 140 gpio_request(TEGRA_GPIO(V, 4), "LAN_RESET"); 141 gpio_direction_output(TEGRA_GPIO(V, 4), 0); 142 pinmux_tristate_disable(PMUX_PINGRP_GPV); 143 udelay(5); 144 gpio_set_value(TEGRA_GPIO(V, 4), 1); 145 146 /* USBH_PEN: USB 1 aka Tegra USB port 3 VBus */ 147 pinmux_tristate_disable(PMUX_PINGRP_SPIG); 148} 149#endif 150 151#ifdef CONFIG_VIDEO_TEGRA20 152/* 153 * Routine: pin_mux_display 154 * Description: setup the pin muxes/tristate values for the LCD interface) 155 */ 156void pin_mux_display(void) 157{ 158 /* 159 * Manually untristate BL_ON (PT4 - SODIMM 71) as specified through 160 * device-tree 161 */ 162 pinmux_tristate_disable(PMUX_PINGRP_DTA); 163 164 pinmux_set_func(PMUX_PINGRP_SDC, PMUX_FUNC_PWM); 165 pinmux_tristate_disable(PMUX_PINGRP_SDC); 166} 167 168/* 169 * Backlight off before OS handover 170 */ 171void board_preboot_os(void) 172{ 173 gpio_request(TEGRA_GPIO(T, 4), "BL_ON"); 174 gpio_direction_output(TEGRA_GPIO(T, 4), 0); 175} 176#endif 177