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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2014-2018
* Marcel Ziswiler <marcel@ziswiler.com>
*/
#include <common.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/gpio.h>
#include <asm/io.h>
#include <dm.h>
#include <i2c.h>
#include <pci_tegra.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, bd_t *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 */
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