board/toradex/apalis-tk1/apalis-tk1.c - u-boot-mtk - Git at Google

 // SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2016-2018 Toradex, Inc.
  */

 #include <common.h>
 #include <dm.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 <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\n");

 	/* 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, 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_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_GET_DRIVER(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_GET_DRIVER(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);
 }
	// SPDX-License-Identifier: GPL-2.0+
	/*
	* Copyright (c) 2016-2018 Toradex, Inc.
	*/

	#include <common.h>
	#include <dm.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 <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\n");

	/* 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, 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_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_GET_DRIVER(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_GET_DRIVER(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);
	}