1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (c) 2016-2018 Toradex, Inc.
10 #include <asm/arch-tegra/ap.h>
13 #include <asm/arch/gpio.h>
14 #include <asm/arch/pinmux.h>
15 #include <env_internal.h>
16 #include <pci_tegra.h>
17 #include <power/as3722.h>
18 #include <power/pmic.h>
20 #include "../common/tdx-common.h"
21 #include "pinmux-config-apalis-tk1.h"
23 #define LAN_DEV_OFF_N TEGRA_GPIO(O, 6)
24 #define LAN_RESET_N TEGRA_GPIO(S, 2)
25 #define FAN_EN TEGRA_GPIO(DD, 2)
26 #define LAN_WAKE_N TEGRA_GPIO(O, 5)
27 #ifdef CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT
28 #define PEX_PERST_N TEGRA_GPIO(DD, 1) /* Apalis GPIO7 */
29 #define RESET_MOCI_CTRL TEGRA_GPIO(U, 4)
30 #endif /* CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT */
31 #define VCC_USBH TEGRA_GPIO(T, 6)
32 #define VCC_USBH_V1_0 TEGRA_GPIO(N, 5)
33 #define VCC_USBO1 TEGRA_GPIO(T, 5)
34 #define VCC_USBO1_V1_0 TEGRA_GPIO(N, 4)
36 int arch_misc_init(void)
38 if (readl(NV_PA_BASE_SRAM + NVBOOTINFOTABLE_BOOTTYPE) ==
40 printf("USB recovery mode\n");
42 /* PCB Version Indication: V1.2 and later have GPIO_PV0 wired to GND */
43 gpio_request(TEGRA_GPIO(V, 0), "PCB Version Indication");
44 gpio_direction_input(TEGRA_GPIO(V, 0));
45 if (gpio_get_value(TEGRA_GPIO(V, 0))) {
47 * if using the default device tree for new V1.2 and later HW,
48 * use version for older V1.0 and V1.1 HW
50 char *fdt_env = env_get("fdt_module");
52 if (fdt_env && !strcmp(FDT_MODULE, fdt_env)) {
53 env_set("fdt_module", FDT_MODULE_V1_0);
54 printf("patching fdt_module to " FDT_MODULE_V1_0
55 " for older V1.0 and V1.1 HW\n");
56 #ifndef CONFIG_ENV_IS_NOWHERE
61 /* activate USB power enable GPIOs */
62 gpio_request(VCC_USBH_V1_0, "VCC_USBH");
63 gpio_direction_output(VCC_USBH_V1_0, 1);
64 gpio_request(VCC_USBO1_V1_0, "VCC_USBO1");
65 gpio_direction_output(VCC_USBO1_V1_0, 1);
67 /* activate USB power enable GPIOs */
68 gpio_request(VCC_USBH, "VCC_USBH");
69 gpio_direction_output(VCC_USBH, 1);
70 gpio_request(VCC_USBO1, "VCC_USBO1");
71 gpio_direction_output(VCC_USBO1, 1);
79 puts("Model: Toradex Apalis TK1 2GB\n");
84 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
85 int ft_board_setup(void *blob, bd_t *bd)
87 return ft_common_board_setup(blob, bd);
92 * Routine: pinmux_init
93 * Description: Do individual peripheral pinmux configs
95 void pinmux_init(void)
97 pinmux_clear_tristate_input_clamping();
99 gpio_config_table(apalis_tk1_gpio_inits,
100 ARRAY_SIZE(apalis_tk1_gpio_inits));
102 pinmux_config_pingrp_table(apalis_tk1_pingrps,
103 ARRAY_SIZE(apalis_tk1_pingrps));
105 pinmux_config_drvgrp_table(apalis_tk1_drvgrps,
106 ARRAY_SIZE(apalis_tk1_drvgrps));
109 #ifdef CONFIG_PCI_TEGRA
110 /* TODO: Convert to driver model */
111 static int as3722_sd_enable(struct udevice *pmic, unsigned int sd)
118 err = pmic_clrsetbits(pmic, AS3722_SD_CONTROL, 0, 1 << sd);
120 pr_err("failed to update SD control register: %d", err);
127 /* TODO: Convert to driver model */
128 static int as3722_ldo_enable(struct udevice *pmic, unsigned int ldo)
131 u8 ctrl_reg = AS3722_LDO_CONTROL0;
137 ctrl_reg = AS3722_LDO_CONTROL1;
141 err = pmic_clrsetbits(pmic, ctrl_reg, 0, 1 << ldo);
143 pr_err("failed to update LDO control register: %d", err);
150 int tegra_pcie_board_init(void)
155 ret = uclass_get_device_by_driver(UCLASS_PMIC,
156 DM_GET_DRIVER(pmic_as3722), &dev);
158 pr_err("failed to find AS3722 PMIC: %d\n", ret);
162 ret = as3722_sd_enable(dev, 4);
164 pr_err("failed to enable SD4: %d\n", ret);
168 ret = as3722_sd_set_voltage(dev, 4, 0x24);
170 pr_err("failed to set SD4 voltage: %d\n", ret);
174 gpio_request(LAN_DEV_OFF_N, "LAN_DEV_OFF_N");
175 gpio_request(LAN_RESET_N, "LAN_RESET_N");
176 gpio_request(LAN_WAKE_N, "LAN_WAKE_N");
178 #ifdef CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT
179 gpio_request(PEX_PERST_N, "PEX_PERST_N");
180 gpio_request(RESET_MOCI_CTRL, "RESET_MOCI_CTRL");
181 #endif /* CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT */
186 void tegra_pcie_board_port_reset(struct tegra_pcie_port *port)
188 int index = tegra_pcie_port_index_of_port(port);
190 if (index == 1) { /* I210 Gigabit Ethernet Controller (On-module) */
194 ret = uclass_get_device_by_driver(UCLASS_PMIC,
195 DM_GET_DRIVER(pmic_as3722),
198 debug("%s: Failed to find PMIC\n", __func__);
202 /* Reset I210 Gigabit Ethernet Controller */
203 gpio_direction_output(LAN_RESET_N, 0);
206 * Make sure we don't get any back feeding from DEV_OFF_N resp.
209 gpio_direction_output(LAN_DEV_OFF_N, 0);
210 gpio_direction_output(LAN_WAKE_N, 0);
212 /* Make sure LDO9 and LDO10 are initially enabled @ 0V */
213 ret = as3722_ldo_enable(dev, 9);
215 pr_err("failed to enable LDO9: %d\n", ret);
218 ret = as3722_ldo_enable(dev, 10);
220 pr_err("failed to enable LDO10: %d\n", ret);
223 ret = as3722_ldo_set_voltage(dev, 9, 0x80);
225 pr_err("failed to set LDO9 voltage: %d\n", ret);
228 ret = as3722_ldo_set_voltage(dev, 10, 0x80);
230 pr_err("failed to set LDO10 voltage: %d\n", ret);
234 /* Make sure controller gets enabled by disabling DEV_OFF_N */
235 gpio_set_value(LAN_DEV_OFF_N, 1);
238 * Enable LDO9 and LDO10 for +V3.3_ETH on patched prototype
239 * V1.0A and sample V1.0B and newer modules
241 ret = as3722_ldo_set_voltage(dev, 9, 0xff);
243 pr_err("failed to set LDO9 voltage: %d\n", ret);
246 ret = as3722_ldo_set_voltage(dev, 10, 0xff);
248 pr_err("failed to set LDO10 voltage: %d\n", ret);
253 * Must be asserted for 100 ms after power and clocks are stable
257 gpio_set_value(LAN_RESET_N, 1);
258 } else if (index == 0) { /* Apalis PCIe */
259 #ifdef CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT
261 * Reset PLX PEX 8605 PCIe Switch plus PCIe devices on Apalis
264 gpio_direction_output(PEX_PERST_N, 0);
265 gpio_direction_output(RESET_MOCI_CTRL, 0);
268 * Must be asserted for 100 ms after power and clocks are stable
272 gpio_set_value(PEX_PERST_N, 1);
274 * Err_5: PEX_REFCLK_OUTpx/nx Clock Outputs is not Guaranteed
275 * Until 900 us After PEX_PERST# De-assertion
278 gpio_set_value(RESET_MOCI_CTRL, 1);
279 #endif /* CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT */
282 #endif /* CONFIG_PCI_TEGRA */
285 * Enable/start PWM CPU fan
287 void start_cpu_fan(void)
289 gpio_request(FAN_EN, "FAN_EN");
290 gpio_direction_output(FAN_EN, 1);
294 * Backlight off before OS handover
296 void board_preboot_os(void)
298 gpio_request(TEGRA_GPIO(BB, 5), "BL_ON");
299 gpio_direction_output(TEGRA_GPIO(BB, 5), 0);