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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (C) 2012 Lucas Stach
- */
- #include <common.h>
- #include <init.h>
- #include <log.h>
- #include <asm/arch/clock.h>
- #include <asm/arch/funcmux.h>
- #include <asm/arch/pinmux.h>
- #include <asm/arch-tegra/ap.h>
- #include <asm/arch-tegra/board.h>
- #include <asm/arch-tegra/tegra.h>
- #include <asm/gpio.h>
- #include <asm/io.h>
- #include <i2c.h>
- #include <nand.h>
- #include <linux/delay.h>
- #include "../common/tdx-common.h"
- DECLARE_GLOBAL_DATA_PTR;
- #define PMU_I2C_ADDRESS 0x34
- #define MAX_I2C_RETRY 3
- #define PMU_SUPPLYENE 0x14
- #define PMU_SUPPLYENE_SYSINEN (1<<5)
- #define PMU_SUPPLYENE_EXITSLREQ (1<<1)
- int arch_misc_init(void)
- {
- /* Disable PMIC sleep mode on low supply voltage */
- struct udevice *dev;
- u8 addr, data[1];
- int err;
- err = i2c_get_chip_for_busnum(0, PMU_I2C_ADDRESS, 1, &dev);
- if (err) {
- debug("%s: Cannot find PMIC I2C chip\n", __func__);
- return err;
- }
- addr = PMU_SUPPLYENE;
- err = dm_i2c_read(dev, addr, data, 1);
- if (err) {
- debug("failed to get PMU_SUPPLYENE\n");
- return err;
- }
- data[0] &= ~PMU_SUPPLYENE_SYSINEN;
- data[0] |= PMU_SUPPLYENE_EXITSLREQ;
- err = dm_i2c_write(dev, addr, data, 1);
- if (err) {
- debug("failed to set PMU_SUPPLYENE\n");
- return err;
- }
- /* make sure SODIMM pin 87 nRESET_OUT is released properly */
- pinmux_set_func(PMUX_PINGRP_ATA, PMUX_FUNC_GMI);
- if (readl(NV_PA_BASE_SRAM + NVBOOTINFOTABLE_BOOTTYPE) ==
- NVBOOTTYPE_RECOVERY)
- printf("USB recovery mode\n");
- return 0;
- }
- int checkboard(void)
- {
- printf("Model: Toradex Colibri T20 %dMB V%s\n",
- (gd->ram_size == 0x10000000) ? 256 : 512,
- (get_nand_dev_by_index(0)->erasesize >> 10 == 512) ?
- ((gd->ram_size == 0x10000000) ? "1.1B" : "1.1C") : "1.2A");
- return 0;
- }
- #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
- int ft_board_setup(void *blob, struct bd_info *bd)
- {
- return ft_common_board_setup(blob, bd);
- }
- #endif
- #ifdef CONFIG_MMC_SDHCI_TEGRA
- /*
- * Routine: pin_mux_mmc
- * Description: setup the pin muxes/tristate values for the SDMMC(s)
- */
- void pin_mux_mmc(void)
- {
- funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATB_GMA_4_BIT);
- pinmux_tristate_disable(PMUX_PINGRP_GMB);
- }
- #endif
- #ifdef CONFIG_TEGRA_NAND
- void pin_mux_nand(void)
- {
- funcmux_select(PERIPH_ID_NDFLASH, FUNCMUX_NDFLASH_KBC_8_BIT);
- /*
- * configure pingroup ATC to something unrelated to
- * avoid ATC overriding KBC
- */
- pinmux_set_func(PMUX_PINGRP_ATC, PMUX_FUNC_GMI);
- }
- #endif
- #ifdef CONFIG_USB_EHCI_TEGRA
- void pin_mux_usb(void)
- {
- /* module internal USB bus to connect ethernet chipset */
- funcmux_select(PERIPH_ID_USB2, FUNCMUX_USB2_ULPI);
- /* ULPI reference clock output */
- pinmux_set_func(PMUX_PINGRP_CDEV2, PMUX_FUNC_PLLP_OUT4);
- pinmux_tristate_disable(PMUX_PINGRP_CDEV2);
- /* PHY reset GPIO */
- pinmux_tristate_disable(PMUX_PINGRP_UAC);
- /* VBus GPIO */
- pinmux_tristate_disable(PMUX_PINGRP_DTE);
- /* Reset ASIX using LAN_RESET */
- gpio_request(TEGRA_GPIO(V, 4), "LAN_RESET");
- gpio_direction_output(TEGRA_GPIO(V, 4), 0);
- pinmux_tristate_disable(PMUX_PINGRP_GPV);
- udelay(5);
- gpio_set_value(TEGRA_GPIO(V, 4), 1);
- /* USBH_PEN: USB 1 aka Tegra USB port 3 VBus */
- pinmux_tristate_disable(PMUX_PINGRP_SPIG);
- }
- #endif
- #ifdef CONFIG_VIDEO_TEGRA20
- /*
- * Routine: pin_mux_display
- * Description: setup the pin muxes/tristate values for the LCD interface)
- */
- void pin_mux_display(void)
- {
- /*
- * Manually untristate BL_ON (PT4 - SODIMM 71) as specified through
- * device-tree
- */
- pinmux_tristate_disable(PMUX_PINGRP_DTA);
- pinmux_set_func(PMUX_PINGRP_SDC, PMUX_FUNC_PWM);
- pinmux_tristate_disable(PMUX_PINGRP_SDC);
- }
- /*
- * Backlight off before OS handover
- */
- void board_preboot_os(void)
- {
- gpio_request(TEGRA_GPIO(T, 4), "BL_ON");
- gpio_direction_output(TEGRA_GPIO(T, 4), 0);
- }
- #endif
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