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 <linux/delay.h>
19 #include <power/as3722.h>
20 #include <power/pmic.h>
22 #include "../common/tdx-common.h"
23 #include "pinmux-config-apalis-tk1.h"
25 #define LAN_DEV_OFF_N TEGRA_GPIO(O, 6)
26 #define LAN_RESET_N TEGRA_GPIO(S, 2)
27 #define FAN_EN TEGRA_GPIO(DD, 2)
28 #define LAN_WAKE_N TEGRA_GPIO(O, 5)
29 #ifdef CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT
30 #define PEX_PERST_N TEGRA_GPIO(DD, 1) /* Apalis GPIO7 */
31 #define RESET_MOCI_CTRL TEGRA_GPIO(U, 4)
32 #endif /* CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT */
33 #define VCC_USBH TEGRA_GPIO(T, 6)
34 #define VCC_USBH_V1_0 TEGRA_GPIO(N, 5)
35 #define VCC_USBO1 TEGRA_GPIO(T, 5)
36 #define VCC_USBO1_V1_0 TEGRA_GPIO(N, 4)
38 int arch_misc_init(void)
40 if (readl(NV_PA_BASE_SRAM + NVBOOTINFOTABLE_BOOTTYPE) ==
41 NVBOOTTYPE_RECOVERY) {
42 printf("USB recovery mode, attempting to boot Toradex Easy "
44 env_set("bootdelay", "-2");
45 env_set("defargs", "pcie_aspm=off user_debug=30");
46 env_set("fdt_high", "");
47 env_set("initrd_high", "");
49 env_set("setup", "env set setupargs igb_mac=${ethaddr} "
50 "consoleblank=0 no_console_suspend=1 "
51 "console=${console},${baudrate}n8 ${memargs}");
52 env_set("teziargs", "rootfstype=squashfs root=/dev/ram quiet "
54 env_set("vidargs", "video=HDMI-A-1:640x480-16@60D");
55 env_set("bootcmd", "run setup; env set bootargs ${defargs} "
56 "${setupargs} ${vidargs} ${teziargs}; bootm 0x80208000"
57 "#config@${soc}-${fdt_module}-${fdt_board}.dtb");
60 /* PCB Version Indication: V1.2 and later have GPIO_PV0 wired to GND */
61 gpio_request(TEGRA_GPIO(V, 0), "PCB Version Indication");
62 gpio_direction_input(TEGRA_GPIO(V, 0));
63 if (gpio_get_value(TEGRA_GPIO(V, 0))) {
65 * if using the default device tree for new V1.2 and later HW,
66 * use version for older V1.0 and V1.1 HW
68 char *fdt_env = env_get("fdt_module");
70 if (fdt_env && !strcmp(FDT_MODULE, fdt_env)) {
71 env_set("fdt_module", FDT_MODULE_V1_0);
72 printf("patching fdt_module to " FDT_MODULE_V1_0
73 " for older V1.0 and V1.1 HW\n");
76 /* activate USB power enable GPIOs */
77 gpio_request(VCC_USBH_V1_0, "VCC_USBH");
78 gpio_direction_output(VCC_USBH_V1_0, 1);
79 gpio_request(VCC_USBO1_V1_0, "VCC_USBO1");
80 gpio_direction_output(VCC_USBO1_V1_0, 1);
82 /* activate USB power enable GPIOs */
83 gpio_request(VCC_USBH, "VCC_USBH");
84 gpio_direction_output(VCC_USBH, 1);
85 gpio_request(VCC_USBO1, "VCC_USBO1");
86 gpio_direction_output(VCC_USBO1, 1);
94 puts("Model: Toradex Apalis TK1 2GB\n");
99 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
100 int ft_board_setup(void *blob, struct bd_info *bd)
102 return ft_common_board_setup(blob, bd);
107 * Routine: pinmux_init
108 * Description: Do individual peripheral pinmux configs
110 void pinmux_init(void)
112 pinmux_clear_tristate_input_clamping();
114 gpio_config_table(apalis_tk1_gpio_inits,
115 ARRAY_SIZE(apalis_tk1_gpio_inits));
117 pinmux_config_pingrp_table(apalis_tk1_pingrps,
118 ARRAY_SIZE(apalis_tk1_pingrps));
120 pinmux_config_drvgrp_table(apalis_tk1_drvgrps,
121 ARRAY_SIZE(apalis_tk1_drvgrps));
124 #ifdef CONFIG_PCI_TEGRA
125 /* TODO: Convert to driver model */
126 static int as3722_sd_enable(struct udevice *pmic, unsigned int sd)
133 err = pmic_clrsetbits(pmic, AS3722_SD_CONTROL, 0, 1 << sd);
135 pr_err("failed to update SD control register: %d", err);
142 /* TODO: Convert to driver model */
143 static int as3722_ldo_enable(struct udevice *pmic, unsigned int ldo)
146 u8 ctrl_reg = AS3722_LDO_CONTROL0;
152 ctrl_reg = AS3722_LDO_CONTROL1;
156 err = pmic_clrsetbits(pmic, ctrl_reg, 0, 1 << ldo);
158 pr_err("failed to update LDO control register: %d", err);
165 int tegra_pcie_board_init(void)
170 ret = uclass_get_device_by_driver(UCLASS_PMIC,
171 DM_DRIVER_GET(pmic_as3722), &dev);
173 pr_err("failed to find AS3722 PMIC: %d\n", ret);
177 ret = as3722_sd_enable(dev, 4);
179 pr_err("failed to enable SD4: %d\n", ret);
183 ret = as3722_sd_set_voltage(dev, 4, 0x24);
185 pr_err("failed to set SD4 voltage: %d\n", ret);
189 gpio_request(LAN_DEV_OFF_N, "LAN_DEV_OFF_N");
190 gpio_request(LAN_RESET_N, "LAN_RESET_N");
191 gpio_request(LAN_WAKE_N, "LAN_WAKE_N");
193 #ifdef CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT
194 gpio_request(PEX_PERST_N, "PEX_PERST_N");
195 gpio_request(RESET_MOCI_CTRL, "RESET_MOCI_CTRL");
196 #endif /* CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT */
201 void tegra_pcie_board_port_reset(struct tegra_pcie_port *port)
203 int index = tegra_pcie_port_index_of_port(port);
205 if (index == 1) { /* I210 Gigabit Ethernet Controller (On-module) */
209 ret = uclass_get_device_by_driver(UCLASS_PMIC,
210 DM_DRIVER_GET(pmic_as3722),
213 debug("%s: Failed to find PMIC\n", __func__);
217 /* Reset I210 Gigabit Ethernet Controller */
218 gpio_direction_output(LAN_RESET_N, 0);
221 * Make sure we don't get any back feeding from DEV_OFF_N resp.
224 gpio_direction_output(LAN_DEV_OFF_N, 0);
225 gpio_direction_output(LAN_WAKE_N, 0);
227 /* Make sure LDO9 and LDO10 are initially enabled @ 0V */
228 ret = as3722_ldo_enable(dev, 9);
230 pr_err("failed to enable LDO9: %d\n", ret);
233 ret = as3722_ldo_enable(dev, 10);
235 pr_err("failed to enable LDO10: %d\n", ret);
238 ret = as3722_ldo_set_voltage(dev, 9, 0x80);
240 pr_err("failed to set LDO9 voltage: %d\n", ret);
243 ret = as3722_ldo_set_voltage(dev, 10, 0x80);
245 pr_err("failed to set LDO10 voltage: %d\n", ret);
249 /* Make sure controller gets enabled by disabling DEV_OFF_N */
250 gpio_set_value(LAN_DEV_OFF_N, 1);
253 * Enable LDO9 and LDO10 for +V3.3_ETH on patched prototype
254 * V1.0A and sample V1.0B and newer modules
256 ret = as3722_ldo_set_voltage(dev, 9, 0xff);
258 pr_err("failed to set LDO9 voltage: %d\n", ret);
261 ret = as3722_ldo_set_voltage(dev, 10, 0xff);
263 pr_err("failed to set LDO10 voltage: %d\n", ret);
268 * Must be asserted for 100 ms after power and clocks are stable
272 gpio_set_value(LAN_RESET_N, 1);
273 } else if (index == 0) { /* Apalis PCIe */
274 #ifdef CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT
276 * Reset PLX PEX 8605 PCIe Switch plus PCIe devices on Apalis
279 gpio_direction_output(PEX_PERST_N, 0);
280 gpio_direction_output(RESET_MOCI_CTRL, 0);
283 * Must be asserted for 100 ms after power and clocks are stable
287 gpio_set_value(PEX_PERST_N, 1);
289 * Err_5: PEX_REFCLK_OUTpx/nx Clock Outputs is not Guaranteed
290 * Until 900 us After PEX_PERST# De-assertion
293 gpio_set_value(RESET_MOCI_CTRL, 1);
294 #endif /* CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT */
297 #endif /* CONFIG_PCI_TEGRA */
300 * Enable/start PWM CPU fan
302 void start_cpu_fan(void)
304 gpio_request(FAN_EN, "FAN_EN");
305 gpio_direction_output(FAN_EN, 1);
309 * Backlight off before OS handover
311 void board_preboot_os(void)
313 gpio_request(TEGRA_GPIO(BB, 5), "BL_ON");
314 gpio_direction_output(TEGRA_GPIO(BB, 5), 0);