1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (c) 2016-2018 Toradex, Inc.
11 #include <asm/arch-tegra/ap.h>
14 #include <asm/arch/gpio.h>
15 #include <asm/arch/pinmux.h>
16 #include <env_internal.h>
17 #include <pci_tegra.h>
18 #include <power/as3722.h>
19 #include <power/pmic.h>
21 #include "../common/tdx-common.h"
22 #include "pinmux-config-apalis-tk1.h"
24 #define LAN_DEV_OFF_N TEGRA_GPIO(O, 6)
25 #define LAN_RESET_N TEGRA_GPIO(S, 2)
26 #define FAN_EN TEGRA_GPIO(DD, 2)
27 #define LAN_WAKE_N TEGRA_GPIO(O, 5)
28 #ifdef CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT
29 #define PEX_PERST_N TEGRA_GPIO(DD, 1) /* Apalis GPIO7 */
30 #define RESET_MOCI_CTRL TEGRA_GPIO(U, 4)
31 #endif /* CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT */
32 #define VCC_USBH TEGRA_GPIO(T, 6)
33 #define VCC_USBH_V1_0 TEGRA_GPIO(N, 5)
34 #define VCC_USBO1 TEGRA_GPIO(T, 5)
35 #define VCC_USBO1_V1_0 TEGRA_GPIO(N, 4)
37 int arch_misc_init(void)
39 if (readl(NV_PA_BASE_SRAM + NVBOOTINFOTABLE_BOOTTYPE) ==
41 printf("USB recovery mode\n");
43 /* PCB Version Indication: V1.2 and later have GPIO_PV0 wired to GND */
44 gpio_request(TEGRA_GPIO(V, 0), "PCB Version Indication");
45 gpio_direction_input(TEGRA_GPIO(V, 0));
46 if (gpio_get_value(TEGRA_GPIO(V, 0))) {
48 * if using the default device tree for new V1.2 and later HW,
49 * use version for older V1.0 and V1.1 HW
51 char *fdt_env = env_get("fdt_module");
53 if (fdt_env && !strcmp(FDT_MODULE, fdt_env)) {
54 env_set("fdt_module", FDT_MODULE_V1_0);
55 printf("patching fdt_module to " FDT_MODULE_V1_0
56 " for older V1.0 and V1.1 HW\n");
57 #ifndef CONFIG_ENV_IS_NOWHERE
62 /* activate USB power enable GPIOs */
63 gpio_request(VCC_USBH_V1_0, "VCC_USBH");
64 gpio_direction_output(VCC_USBH_V1_0, 1);
65 gpio_request(VCC_USBO1_V1_0, "VCC_USBO1");
66 gpio_direction_output(VCC_USBO1_V1_0, 1);
68 /* activate USB power enable GPIOs */
69 gpio_request(VCC_USBH, "VCC_USBH");
70 gpio_direction_output(VCC_USBH, 1);
71 gpio_request(VCC_USBO1, "VCC_USBO1");
72 gpio_direction_output(VCC_USBO1, 1);
80 puts("Model: Toradex Apalis TK1 2GB\n");
85 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
86 int ft_board_setup(void *blob, bd_t *bd)
88 return ft_common_board_setup(blob, bd);
93 * Routine: pinmux_init
94 * Description: Do individual peripheral pinmux configs
96 void pinmux_init(void)
98 pinmux_clear_tristate_input_clamping();
100 gpio_config_table(apalis_tk1_gpio_inits,
101 ARRAY_SIZE(apalis_tk1_gpio_inits));
103 pinmux_config_pingrp_table(apalis_tk1_pingrps,
104 ARRAY_SIZE(apalis_tk1_pingrps));
106 pinmux_config_drvgrp_table(apalis_tk1_drvgrps,
107 ARRAY_SIZE(apalis_tk1_drvgrps));
110 #ifdef CONFIG_PCI_TEGRA
111 /* TODO: Convert to driver model */
112 static int as3722_sd_enable(struct udevice *pmic, unsigned int sd)
119 err = pmic_clrsetbits(pmic, AS3722_SD_CONTROL, 0, 1 << sd);
121 pr_err("failed to update SD control register: %d", err);
128 /* TODO: Convert to driver model */
129 static int as3722_ldo_enable(struct udevice *pmic, unsigned int ldo)
132 u8 ctrl_reg = AS3722_LDO_CONTROL0;
138 ctrl_reg = AS3722_LDO_CONTROL1;
142 err = pmic_clrsetbits(pmic, ctrl_reg, 0, 1 << ldo);
144 pr_err("failed to update LDO control register: %d", err);
151 int tegra_pcie_board_init(void)
156 ret = uclass_get_device_by_driver(UCLASS_PMIC,
157 DM_GET_DRIVER(pmic_as3722), &dev);
159 pr_err("failed to find AS3722 PMIC: %d\n", ret);
163 ret = as3722_sd_enable(dev, 4);
165 pr_err("failed to enable SD4: %d\n", ret);
169 ret = as3722_sd_set_voltage(dev, 4, 0x24);
171 pr_err("failed to set SD4 voltage: %d\n", ret);
175 gpio_request(LAN_DEV_OFF_N, "LAN_DEV_OFF_N");
176 gpio_request(LAN_RESET_N, "LAN_RESET_N");
177 gpio_request(LAN_WAKE_N, "LAN_WAKE_N");
179 #ifdef CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT
180 gpio_request(PEX_PERST_N, "PEX_PERST_N");
181 gpio_request(RESET_MOCI_CTRL, "RESET_MOCI_CTRL");
182 #endif /* CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT */
187 void tegra_pcie_board_port_reset(struct tegra_pcie_port *port)
189 int index = tegra_pcie_port_index_of_port(port);
191 if (index == 1) { /* I210 Gigabit Ethernet Controller (On-module) */
195 ret = uclass_get_device_by_driver(UCLASS_PMIC,
196 DM_GET_DRIVER(pmic_as3722),
199 debug("%s: Failed to find PMIC\n", __func__);
203 /* Reset I210 Gigabit Ethernet Controller */
204 gpio_direction_output(LAN_RESET_N, 0);
207 * Make sure we don't get any back feeding from DEV_OFF_N resp.
210 gpio_direction_output(LAN_DEV_OFF_N, 0);
211 gpio_direction_output(LAN_WAKE_N, 0);
213 /* Make sure LDO9 and LDO10 are initially enabled @ 0V */
214 ret = as3722_ldo_enable(dev, 9);
216 pr_err("failed to enable LDO9: %d\n", ret);
219 ret = as3722_ldo_enable(dev, 10);
221 pr_err("failed to enable LDO10: %d\n", ret);
224 ret = as3722_ldo_set_voltage(dev, 9, 0x80);
226 pr_err("failed to set LDO9 voltage: %d\n", ret);
229 ret = as3722_ldo_set_voltage(dev, 10, 0x80);
231 pr_err("failed to set LDO10 voltage: %d\n", ret);
235 /* Make sure controller gets enabled by disabling DEV_OFF_N */
236 gpio_set_value(LAN_DEV_OFF_N, 1);
239 * Enable LDO9 and LDO10 for +V3.3_ETH on patched prototype
240 * V1.0A and sample V1.0B and newer modules
242 ret = as3722_ldo_set_voltage(dev, 9, 0xff);
244 pr_err("failed to set LDO9 voltage: %d\n", ret);
247 ret = as3722_ldo_set_voltage(dev, 10, 0xff);
249 pr_err("failed to set LDO10 voltage: %d\n", ret);
254 * Must be asserted for 100 ms after power and clocks are stable
258 gpio_set_value(LAN_RESET_N, 1);
259 } else if (index == 0) { /* Apalis PCIe */
260 #ifdef CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT
262 * Reset PLX PEX 8605 PCIe Switch plus PCIe devices on Apalis
265 gpio_direction_output(PEX_PERST_N, 0);
266 gpio_direction_output(RESET_MOCI_CTRL, 0);
269 * Must be asserted for 100 ms after power and clocks are stable
273 gpio_set_value(PEX_PERST_N, 1);
275 * Err_5: PEX_REFCLK_OUTpx/nx Clock Outputs is not Guaranteed
276 * Until 900 us After PEX_PERST# De-assertion
279 gpio_set_value(RESET_MOCI_CTRL, 1);
280 #endif /* CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT */
283 #endif /* CONFIG_PCI_TEGRA */
286 * Enable/start PWM CPU fan
288 void start_cpu_fan(void)
290 gpio_request(FAN_EN, "FAN_EN");
291 gpio_direction_output(FAN_EN, 1);
295 * Backlight off before OS handover
297 void board_preboot_os(void)
299 gpio_request(TEGRA_GPIO(BB, 5), "BL_ON");
300 gpio_direction_output(TEGRA_GPIO(BB, 5), 0);