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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * (C) Copyright 2014-2018
- * Marcel Ziswiler <marcel@ziswiler.com>
- */
- #include <common.h>
- #include <init.h>
- #include <log.h>
- #include <asm/arch/gp_padctrl.h>
- #include <asm/arch/pinmux.h>
- #include <asm/arch-tegra/ap.h>
- #include <asm/arch-tegra/tegra.h>
- #include <asm/global_data.h>
- #include <asm/gpio.h>
- #include <asm/io.h>
- #include <dm.h>
- #include <i2c.h>
- #include <pci_tegra.h>
- #include <linux/delay.h>
- #include "../common/tdx-common.h"
- #include "pinmux-config-apalis_t30.h"
- DECLARE_GLOBAL_DATA_PTR;
- #define PMU_I2C_ADDRESS 0x2D
- #define MAX_I2C_RETRY 3
- #ifdef CONFIG_APALIS_T30_PCIE_EVALBOARD_INIT
- #define PEX_PERST_N TEGRA_GPIO(S, 7) /* Apalis GPIO7 */
- #define RESET_MOCI_CTRL TEGRA_GPIO(I, 4)
- static int pci_reset_status;
- #endif /* CONFIG_APALIS_T30_PCIE_EVALBOARD_INIT */
- int arch_misc_init(void)
- {
- if (readl(NV_PA_BASE_SRAM + NVBOOTINFOTABLE_BOOTTYPE) ==
- NVBOOTTYPE_RECOVERY)
- printf("USB recovery mode\n");
- return 0;
- }
- int checkboard(void)
- {
- printf("Model: Toradex Apalis T30 %dGB\n",
- (gd->ram_size == 0x40000000) ? 1 : 2);
- 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
- /*
- * Routine: pinmux_init
- * Description: Do individual peripheral pinmux configs
- */
- void pinmux_init(void)
- {
- pinmux_config_pingrp_table(tegra3_pinmux_common,
- ARRAY_SIZE(tegra3_pinmux_common));
- pinmux_config_pingrp_table(unused_pins_lowpower,
- ARRAY_SIZE(unused_pins_lowpower));
- /* Initialize any non-default pad configs (APB_MISC_GP regs) */
- pinmux_config_drvgrp_table(apalis_t30_padctrl,
- ARRAY_SIZE(apalis_t30_padctrl));
- }
- #ifdef CONFIG_PCI_TEGRA
- int tegra_pcie_board_init(void)
- {
- 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;
- }
- /* TPS659110: VDD2_OP_REG = 1.05V */
- data[0] = 0x27;
- addr = 0x25;
- err = dm_i2c_write(dev, addr, data, 1);
- if (err) {
- debug("failed to set VDD supply\n");
- return err;
- }
- /* TPS659110: VDD2_REG 7.5 mV/us, ACTIVE */
- data[0] = 0x0D;
- addr = 0x24;
- err = dm_i2c_write(dev, addr, data, 1);
- if (err) {
- debug("failed to enable VDD supply\n");
- return err;
- }
- /* TPS659110: LDO6_REG = 1.1V, ACTIVE */
- data[0] = 0x0D;
- addr = 0x35;
- err = dm_i2c_write(dev, addr, data, 1);
- if (err) {
- debug("failed to set AVDD supply\n");
- return err;
- }
- #ifdef CONFIG_APALIS_T30_PCIE_EVALBOARD_INIT
- gpio_request(PEX_PERST_N, "PEX_PERST_N");
- gpio_request(RESET_MOCI_CTRL, "RESET_MOCI_CTRL");
- #endif /* CONFIG_APALIS_T30_PCIE_EVALBOARD_INIT */
- return 0;
- }
- void tegra_pcie_board_port_reset(struct tegra_pcie_port *port)
- {
- int index = tegra_pcie_port_index_of_port(port);
- if (index == 2) { /* I210 Gigabit Ethernet Controller (On-module) */
- tegra_pcie_port_reset(port);
- }
- #ifdef CONFIG_APALIS_T30_PCIE_EVALBOARD_INIT
- /*
- * Apalis PCIe aka port 1 and Apalis Type Specific 4 Lane PCIe aka port
- * 0 share the same RESET_MOCI therefore only assert it once for both
- * ports to avoid losing the previously brought up port again.
- */
- else if ((index == 1) || (index == 0)) {
- /* only do it once per init cycle */
- if (pci_reset_status % 2 == 0) {
- /*
- * Reset PLX PEX 8605 PCIe Switch plus PCIe devices on
- * Apalis Evaluation Board
- */
- gpio_direction_output(PEX_PERST_N, 0);
- gpio_direction_output(RESET_MOCI_CTRL, 0);
- /*
- * Must be asserted for 100 ms after power and clocks
- * are stable
- */
- mdelay(100);
- gpio_set_value(PEX_PERST_N, 1);
- /*
- * Err_5: PEX_REFCLK_OUTpx/nx Clock Outputs is not
- * Guaranteed Until 900 us After PEX_PERST# De-assertion
- */
- mdelay(1);
- gpio_set_value(RESET_MOCI_CTRL, 1);
- }
- pci_reset_status++;
- }
- #endif /* CONFIG_APALIS_T30_PCIE_EVALBOARD_INIT */
- }
- #endif /* CONFIG_PCI_TEGRA */
- /*
- * Backlight off before OS handover
- */
- void board_preboot_os(void)
- {
- gpio_request(TEGRA_GPIO(V, 2), "BKL1_ON");
- gpio_direction_output(TEGRA_GPIO(V, 2), 0);
- }
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