1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (c) 2016-2018 Toradex, Inc.
8 #include <asm/arch-tegra/ap.h>
11 #include <asm/arch/gpio.h>
12 #include <asm/arch/pinmux.h>
13 #include <env_internal.h>
14 #include <pci_tegra.h>
15 #include <power/as3722.h>
16 #include <power/pmic.h>
18 #include "../common/tdx-common.h"
19 #include "pinmux-config-apalis-tk1.h"
21 #define LAN_DEV_OFF_N TEGRA_GPIO(O, 6)
22 #define LAN_RESET_N TEGRA_GPIO(S, 2)
23 #define FAN_EN TEGRA_GPIO(DD, 2)
24 #define LAN_WAKE_N TEGRA_GPIO(O, 5)
25 #ifdef CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT
26 #define PEX_PERST_N TEGRA_GPIO(DD, 1) /* Apalis GPIO7 */
27 #define RESET_MOCI_CTRL TEGRA_GPIO(U, 4)
28 #endif /* CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT */
29 #define VCC_USBH TEGRA_GPIO(T, 6)
30 #define VCC_USBH_V1_0 TEGRA_GPIO(N, 5)
31 #define VCC_USBO1 TEGRA_GPIO(T, 5)
32 #define VCC_USBO1_V1_0 TEGRA_GPIO(N, 4)
34 int arch_misc_init(void)
36 if (readl(NV_PA_BASE_SRAM + NVBOOTINFOTABLE_BOOTTYPE) ==
38 printf("USB recovery mode\n");
40 /* PCB Version Indication: V1.2 and later have GPIO_PV0 wired to GND */
41 gpio_request(TEGRA_GPIO(V, 0), "PCB Version Indication");
42 gpio_direction_input(TEGRA_GPIO(V, 0));
43 if (gpio_get_value(TEGRA_GPIO(V, 0))) {
45 * if using the default device tree for new V1.2 and later HW,
46 * use version for older V1.0 and V1.1 HW
48 char *fdt_env = env_get("fdt_module");
50 if (fdt_env && !strcmp(FDT_MODULE, fdt_env)) {
51 env_set("fdt_module", FDT_MODULE_V1_0);
52 printf("patching fdt_module to " FDT_MODULE_V1_0
53 " for older V1.0 and V1.1 HW\n");
54 #ifndef CONFIG_ENV_IS_NOWHERE
59 /* activate USB power enable GPIOs */
60 gpio_request(VCC_USBH_V1_0, "VCC_USBH");
61 gpio_direction_output(VCC_USBH_V1_0, 1);
62 gpio_request(VCC_USBO1_V1_0, "VCC_USBO1");
63 gpio_direction_output(VCC_USBO1_V1_0, 1);
65 /* activate USB power enable GPIOs */
66 gpio_request(VCC_USBH, "VCC_USBH");
67 gpio_direction_output(VCC_USBH, 1);
68 gpio_request(VCC_USBO1, "VCC_USBO1");
69 gpio_direction_output(VCC_USBO1, 1);
77 puts("Model: Toradex Apalis TK1 2GB\n");
82 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
83 int ft_board_setup(void *blob, bd_t *bd)
85 return ft_common_board_setup(blob, bd);
90 * Routine: pinmux_init
91 * Description: Do individual peripheral pinmux configs
93 void pinmux_init(void)
95 pinmux_clear_tristate_input_clamping();
97 gpio_config_table(apalis_tk1_gpio_inits,
98 ARRAY_SIZE(apalis_tk1_gpio_inits));
100 pinmux_config_pingrp_table(apalis_tk1_pingrps,
101 ARRAY_SIZE(apalis_tk1_pingrps));
103 pinmux_config_drvgrp_table(apalis_tk1_drvgrps,
104 ARRAY_SIZE(apalis_tk1_drvgrps));
107 #ifdef CONFIG_PCI_TEGRA
108 /* TODO: Convert to driver model */
109 static int as3722_sd_enable(struct udevice *pmic, unsigned int sd)
116 err = pmic_clrsetbits(pmic, AS3722_SD_CONTROL, 0, 1 << sd);
118 pr_err("failed to update SD control register: %d", err);
125 /* TODO: Convert to driver model */
126 static int as3722_ldo_enable(struct udevice *pmic, unsigned int ldo)
129 u8 ctrl_reg = AS3722_LDO_CONTROL0;
135 ctrl_reg = AS3722_LDO_CONTROL1;
139 err = pmic_clrsetbits(pmic, ctrl_reg, 0, 1 << ldo);
141 pr_err("failed to update LDO control register: %d", err);
148 int tegra_pcie_board_init(void)
153 ret = uclass_get_device_by_driver(UCLASS_PMIC,
154 DM_GET_DRIVER(pmic_as3722), &dev);
156 pr_err("failed to find AS3722 PMIC: %d\n", ret);
160 ret = as3722_sd_enable(dev, 4);
162 pr_err("failed to enable SD4: %d\n", ret);
166 ret = as3722_sd_set_voltage(dev, 4, 0x24);
168 pr_err("failed to set SD4 voltage: %d\n", ret);
172 gpio_request(LAN_DEV_OFF_N, "LAN_DEV_OFF_N");
173 gpio_request(LAN_RESET_N, "LAN_RESET_N");
174 gpio_request(LAN_WAKE_N, "LAN_WAKE_N");
176 #ifdef CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT
177 gpio_request(PEX_PERST_N, "PEX_PERST_N");
178 gpio_request(RESET_MOCI_CTRL, "RESET_MOCI_CTRL");
179 #endif /* CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT */
184 void tegra_pcie_board_port_reset(struct tegra_pcie_port *port)
186 int index = tegra_pcie_port_index_of_port(port);
188 if (index == 1) { /* I210 Gigabit Ethernet Controller (On-module) */
192 ret = uclass_get_device_by_driver(UCLASS_PMIC,
193 DM_GET_DRIVER(pmic_as3722),
196 debug("%s: Failed to find PMIC\n", __func__);
200 /* Reset I210 Gigabit Ethernet Controller */
201 gpio_direction_output(LAN_RESET_N, 0);
204 * Make sure we don't get any back feeding from DEV_OFF_N resp.
207 gpio_direction_output(LAN_DEV_OFF_N, 0);
208 gpio_direction_output(LAN_WAKE_N, 0);
210 /* Make sure LDO9 and LDO10 are initially enabled @ 0V */
211 ret = as3722_ldo_enable(dev, 9);
213 pr_err("failed to enable LDO9: %d\n", ret);
216 ret = as3722_ldo_enable(dev, 10);
218 pr_err("failed to enable LDO10: %d\n", ret);
221 ret = as3722_ldo_set_voltage(dev, 9, 0x80);
223 pr_err("failed to set LDO9 voltage: %d\n", ret);
226 ret = as3722_ldo_set_voltage(dev, 10, 0x80);
228 pr_err("failed to set LDO10 voltage: %d\n", ret);
232 /* Make sure controller gets enabled by disabling DEV_OFF_N */
233 gpio_set_value(LAN_DEV_OFF_N, 1);
236 * Enable LDO9 and LDO10 for +V3.3_ETH on patched prototype
237 * V1.0A and sample V1.0B and newer modules
239 ret = as3722_ldo_set_voltage(dev, 9, 0xff);
241 pr_err("failed to set LDO9 voltage: %d\n", ret);
244 ret = as3722_ldo_set_voltage(dev, 10, 0xff);
246 pr_err("failed to set LDO10 voltage: %d\n", ret);
251 * Must be asserted for 100 ms after power and clocks are stable
255 gpio_set_value(LAN_RESET_N, 1);
256 } else if (index == 0) { /* Apalis PCIe */
257 #ifdef CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT
259 * Reset PLX PEX 8605 PCIe Switch plus PCIe devices on Apalis
262 gpio_direction_output(PEX_PERST_N, 0);
263 gpio_direction_output(RESET_MOCI_CTRL, 0);
266 * Must be asserted for 100 ms after power and clocks are stable
270 gpio_set_value(PEX_PERST_N, 1);
272 * Err_5: PEX_REFCLK_OUTpx/nx Clock Outputs is not Guaranteed
273 * Until 900 us After PEX_PERST# De-assertion
276 gpio_set_value(RESET_MOCI_CTRL, 1);
277 #endif /* CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT */
280 #endif /* CONFIG_PCI_TEGRA */
283 * Enable/start PWM CPU fan
285 void start_cpu_fan(void)
287 gpio_request(FAN_EN, "FAN_EN");
288 gpio_direction_output(FAN_EN, 1);
292 * Backlight off before OS handover
294 void board_preboot_os(void)
296 gpio_request(TEGRA_GPIO(BB, 5), "BL_ON");
297 gpio_direction_output(TEGRA_GPIO(BB, 5), 0);