1 // SPDX-License-Identifier: GPL-2.0+
3 * (C) Copyright 2014-2018
10 #include <asm/arch/gp_padctrl.h>
11 #include <asm/arch/pinmux.h>
12 #include <asm/arch-tegra/ap.h>
13 #include <asm/arch-tegra/tegra.h>
14 #include <asm/global_data.h>
19 #include <pci_tegra.h>
20 #include <linux/delay.h>
21 #include "../common/tdx-common.h"
23 #include "pinmux-config-apalis_t30.h"
25 DECLARE_GLOBAL_DATA_PTR;
27 #define PMU_I2C_ADDRESS 0x2D
28 #define MAX_I2C_RETRY 3
30 #ifdef CONFIG_APALIS_T30_PCIE_EVALBOARD_INIT
31 #define PEX_PERST_N TEGRA_GPIO(S, 7) /* Apalis GPIO7 */
32 #define RESET_MOCI_CTRL TEGRA_GPIO(I, 4)
34 static int pci_reset_status;
35 #endif /* CONFIG_APALIS_T30_PCIE_EVALBOARD_INIT */
37 int arch_misc_init(void)
39 if (readl(NV_PA_BASE_SRAM + NVBOOTINFOTABLE_BOOTTYPE) ==
41 printf("USB recovery mode\n");
48 printf("Model: Toradex Apalis T30 %dGB\n",
49 (gd->ram_size == 0x40000000) ? 1 : 2);
54 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
55 int ft_board_setup(void *blob, struct bd_info *bd)
57 return ft_common_board_setup(blob, bd);
62 * Routine: pinmux_init
63 * Description: Do individual peripheral pinmux configs
65 void pinmux_init(void)
67 pinmux_config_pingrp_table(tegra3_pinmux_common,
68 ARRAY_SIZE(tegra3_pinmux_common));
70 pinmux_config_pingrp_table(unused_pins_lowpower,
71 ARRAY_SIZE(unused_pins_lowpower));
73 /* Initialize any non-default pad configs (APB_MISC_GP regs) */
74 pinmux_config_drvgrp_table(apalis_t30_padctrl,
75 ARRAY_SIZE(apalis_t30_padctrl));
78 #ifdef CONFIG_PCI_TEGRA
79 int tegra_pcie_board_init(void)
85 err = i2c_get_chip_for_busnum(0, PMU_I2C_ADDRESS, 1, &dev);
87 debug("%s: Cannot find PMIC I2C chip\n", __func__);
91 /* TPS659110: VDD2_OP_REG = 1.05V */
95 err = dm_i2c_write(dev, addr, data, 1);
97 debug("failed to set VDD supply\n");
101 /* TPS659110: VDD2_REG 7.5 mV/us, ACTIVE */
105 err = dm_i2c_write(dev, addr, data, 1);
107 debug("failed to enable VDD supply\n");
111 /* TPS659110: LDO6_REG = 1.1V, ACTIVE */
115 err = dm_i2c_write(dev, addr, data, 1);
117 debug("failed to set AVDD supply\n");
121 #ifdef CONFIG_APALIS_T30_PCIE_EVALBOARD_INIT
122 gpio_request(PEX_PERST_N, "PEX_PERST_N");
123 gpio_request(RESET_MOCI_CTRL, "RESET_MOCI_CTRL");
124 #endif /* CONFIG_APALIS_T30_PCIE_EVALBOARD_INIT */
129 void tegra_pcie_board_port_reset(struct tegra_pcie_port *port)
131 int index = tegra_pcie_port_index_of_port(port);
133 if (index == 2) { /* I210 Gigabit Ethernet Controller (On-module) */
134 tegra_pcie_port_reset(port);
136 #ifdef CONFIG_APALIS_T30_PCIE_EVALBOARD_INIT
138 * Apalis PCIe aka port 1 and Apalis Type Specific 4 Lane PCIe aka port
139 * 0 share the same RESET_MOCI therefore only assert it once for both
140 * ports to avoid losing the previously brought up port again.
142 else if ((index == 1) || (index == 0)) {
143 /* only do it once per init cycle */
144 if (pci_reset_status % 2 == 0) {
146 * Reset PLX PEX 8605 PCIe Switch plus PCIe devices on
147 * Apalis Evaluation Board
149 gpio_direction_output(PEX_PERST_N, 0);
150 gpio_direction_output(RESET_MOCI_CTRL, 0);
153 * Must be asserted for 100 ms after power and clocks
158 gpio_set_value(PEX_PERST_N, 1);
160 * Err_5: PEX_REFCLK_OUTpx/nx Clock Outputs is not
161 * Guaranteed Until 900 us After PEX_PERST# De-assertion
164 gpio_set_value(RESET_MOCI_CTRL, 1);
168 #endif /* CONFIG_APALIS_T30_PCIE_EVALBOARD_INIT */
170 #endif /* CONFIG_PCI_TEGRA */
173 * Backlight off before OS handover
175 void board_preboot_os(void)
177 gpio_request(TEGRA_GPIO(V, 2), "BKL1_ON");
178 gpio_direction_output(TEGRA_GPIO(V, 2), 0);