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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (c) 2016-2018 Toradex, Inc.
- */
- #include <common.h>
- #include <dm.h>
- #include <env.h>
- #include <init.h>
- #include <log.h>
- #include <asm/arch-tegra/ap.h>
- #include <asm/gpio.h>
- #include <asm/io.h>
- #include <asm/arch/gpio.h>
- #include <asm/arch/pinmux.h>
- #include <env_internal.h>
- #include <pci_tegra.h>
- #include <linux/delay.h>
- #include <power/as3722.h>
- #include <power/pmic.h>
- #include "../common/tdx-common.h"
- #include "pinmux-config-apalis-tk1.h"
- #define LAN_DEV_OFF_N TEGRA_GPIO(O, 6)
- #define LAN_RESET_N TEGRA_GPIO(S, 2)
- #define FAN_EN TEGRA_GPIO(DD, 2)
- #define LAN_WAKE_N TEGRA_GPIO(O, 5)
- #ifdef CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT
- #define PEX_PERST_N TEGRA_GPIO(DD, 1) /* Apalis GPIO7 */
- #define RESET_MOCI_CTRL TEGRA_GPIO(U, 4)
- #endif /* CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT */
- #define VCC_USBH TEGRA_GPIO(T, 6)
- #define VCC_USBH_V1_0 TEGRA_GPIO(N, 5)
- #define VCC_USBO1 TEGRA_GPIO(T, 5)
- #define VCC_USBO1_V1_0 TEGRA_GPIO(N, 4)
- int arch_misc_init(void)
- {
- if (readl(NV_PA_BASE_SRAM + NVBOOTINFOTABLE_BOOTTYPE) ==
- NVBOOTTYPE_RECOVERY) {
- printf("USB recovery mode, attempting to boot Toradex Easy "
- "Installer\n");
- env_set("bootdelay", "-2");
- env_set("defargs", "pcie_aspm=off user_debug=30");
- env_set("fdt_high", "");
- env_set("initrd_high", "");
- env_set("setup", "env set setupargs igb_mac=${ethaddr} "
- "consoleblank=0 no_console_suspend=1 "
- "console=${console},${baudrate}n8 ${memargs}");
- env_set("teziargs", "rootfstype=squashfs root=/dev/ram quiet "
- "autoinstall");
- env_set("vidargs", "video=HDMI-A-1:640x480-16@60D");
- env_set("bootcmd", "run setup; env set bootargs ${defargs} "
- "${setupargs} ${vidargs} ${teziargs}; bootm 0x80208000"
- "#config@${soc}-${fdt_module}-${fdt_board}.dtb");
- }
- /* PCB Version Indication: V1.2 and later have GPIO_PV0 wired to GND */
- gpio_request(TEGRA_GPIO(V, 0), "PCB Version Indication");
- gpio_direction_input(TEGRA_GPIO(V, 0));
- if (gpio_get_value(TEGRA_GPIO(V, 0))) {
- /*
- * if using the default device tree for new V1.2 and later HW,
- * use version for older V1.0 and V1.1 HW
- */
- char *fdt_env = env_get("fdt_module");
- if (fdt_env && !strcmp(FDT_MODULE, fdt_env)) {
- env_set("fdt_module", FDT_MODULE_V1_0);
- printf("patching fdt_module to " FDT_MODULE_V1_0
- " for older V1.0 and V1.1 HW\n");
- #ifndef CONFIG_ENV_IS_NOWHERE
- env_save();
- #endif
- }
- /* activate USB power enable GPIOs */
- gpio_request(VCC_USBH_V1_0, "VCC_USBH");
- gpio_direction_output(VCC_USBH_V1_0, 1);
- gpio_request(VCC_USBO1_V1_0, "VCC_USBO1");
- gpio_direction_output(VCC_USBO1_V1_0, 1);
- } else {
- /* activate USB power enable GPIOs */
- gpio_request(VCC_USBH, "VCC_USBH");
- gpio_direction_output(VCC_USBH, 1);
- gpio_request(VCC_USBO1, "VCC_USBO1");
- gpio_direction_output(VCC_USBO1, 1);
- }
- return 0;
- }
- int checkboard(void)
- {
- puts("Model: Toradex Apalis TK1 2GB\n");
- 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_clear_tristate_input_clamping();
- gpio_config_table(apalis_tk1_gpio_inits,
- ARRAY_SIZE(apalis_tk1_gpio_inits));
- pinmux_config_pingrp_table(apalis_tk1_pingrps,
- ARRAY_SIZE(apalis_tk1_pingrps));
- pinmux_config_drvgrp_table(apalis_tk1_drvgrps,
- ARRAY_SIZE(apalis_tk1_drvgrps));
- }
- #ifdef CONFIG_PCI_TEGRA
- /* TODO: Convert to driver model */
- static int as3722_sd_enable(struct udevice *pmic, unsigned int sd)
- {
- int err;
- if (sd > 6)
- return -EINVAL;
- err = pmic_clrsetbits(pmic, AS3722_SD_CONTROL, 0, 1 << sd);
- if (err) {
- pr_err("failed to update SD control register: %d", err);
- return err;
- }
- return 0;
- }
- /* TODO: Convert to driver model */
- static int as3722_ldo_enable(struct udevice *pmic, unsigned int ldo)
- {
- int err;
- u8 ctrl_reg = AS3722_LDO_CONTROL0;
- if (ldo > 11)
- return -EINVAL;
- if (ldo > 7) {
- ctrl_reg = AS3722_LDO_CONTROL1;
- ldo -= 8;
- }
- err = pmic_clrsetbits(pmic, ctrl_reg, 0, 1 << ldo);
- if (err) {
- pr_err("failed to update LDO control register: %d", err);
- return err;
- }
- return 0;
- }
- int tegra_pcie_board_init(void)
- {
- struct udevice *dev;
- int ret;
- ret = uclass_get_device_by_driver(UCLASS_PMIC,
- DM_DRIVER_GET(pmic_as3722), &dev);
- if (ret) {
- pr_err("failed to find AS3722 PMIC: %d\n", ret);
- return ret;
- }
- ret = as3722_sd_enable(dev, 4);
- if (ret < 0) {
- pr_err("failed to enable SD4: %d\n", ret);
- return ret;
- }
- ret = as3722_sd_set_voltage(dev, 4, 0x24);
- if (ret < 0) {
- pr_err("failed to set SD4 voltage: %d\n", ret);
- return ret;
- }
- gpio_request(LAN_DEV_OFF_N, "LAN_DEV_OFF_N");
- gpio_request(LAN_RESET_N, "LAN_RESET_N");
- gpio_request(LAN_WAKE_N, "LAN_WAKE_N");
- #ifdef CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT
- gpio_request(PEX_PERST_N, "PEX_PERST_N");
- gpio_request(RESET_MOCI_CTRL, "RESET_MOCI_CTRL");
- #endif /* CONFIG_APALIS_TK1_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 == 1) { /* I210 Gigabit Ethernet Controller (On-module) */
- struct udevice *dev;
- int ret;
- ret = uclass_get_device_by_driver(UCLASS_PMIC,
- DM_DRIVER_GET(pmic_as3722),
- &dev);
- if (ret) {
- debug("%s: Failed to find PMIC\n", __func__);
- return;
- }
- /* Reset I210 Gigabit Ethernet Controller */
- gpio_direction_output(LAN_RESET_N, 0);
- /*
- * Make sure we don't get any back feeding from DEV_OFF_N resp.
- * LAN_WAKE_N
- */
- gpio_direction_output(LAN_DEV_OFF_N, 0);
- gpio_direction_output(LAN_WAKE_N, 0);
- /* Make sure LDO9 and LDO10 are initially enabled @ 0V */
- ret = as3722_ldo_enable(dev, 9);
- if (ret < 0) {
- pr_err("failed to enable LDO9: %d\n", ret);
- return;
- }
- ret = as3722_ldo_enable(dev, 10);
- if (ret < 0) {
- pr_err("failed to enable LDO10: %d\n", ret);
- return;
- }
- ret = as3722_ldo_set_voltage(dev, 9, 0x80);
- if (ret < 0) {
- pr_err("failed to set LDO9 voltage: %d\n", ret);
- return;
- }
- ret = as3722_ldo_set_voltage(dev, 10, 0x80);
- if (ret < 0) {
- pr_err("failed to set LDO10 voltage: %d\n", ret);
- return;
- }
- /* Make sure controller gets enabled by disabling DEV_OFF_N */
- gpio_set_value(LAN_DEV_OFF_N, 1);
- /*
- * Enable LDO9 and LDO10 for +V3.3_ETH on patched prototype
- * V1.0A and sample V1.0B and newer modules
- */
- ret = as3722_ldo_set_voltage(dev, 9, 0xff);
- if (ret < 0) {
- pr_err("failed to set LDO9 voltage: %d\n", ret);
- return;
- }
- ret = as3722_ldo_set_voltage(dev, 10, 0xff);
- if (ret < 0) {
- pr_err("failed to set LDO10 voltage: %d\n", ret);
- return;
- }
- /*
- * Must be asserted for 100 ms after power and clocks are stable
- */
- mdelay(100);
- gpio_set_value(LAN_RESET_N, 1);
- } else if (index == 0) { /* Apalis PCIe */
- #ifdef CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT
- /*
- * 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);
- #endif /* CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT */
- }
- }
- #endif /* CONFIG_PCI_TEGRA */
- /*
- * Enable/start PWM CPU fan
- */
- void start_cpu_fan(void)
- {
- gpio_request(FAN_EN, "FAN_EN");
- gpio_direction_output(FAN_EN, 1);
- }
- /*
- * Backlight off before OS handover
- */
- void board_preboot_os(void)
- {
- gpio_request(TEGRA_GPIO(BB, 5), "BL_ON");
- gpio_direction_output(TEGRA_GPIO(BB, 5), 0);
- }
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