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 <fdt_support.h>
18 #include <pci_tegra.h>
19 #include <linux/delay.h>
20 #include <power/as3722.h>
21 #include <power/pmic.h>
23 #include "../common/tdx-common.h"
24 #include "pinmux-config-apalis-tk1.h"
26 #define LAN_DEV_OFF_N TEGRA_GPIO(O, 6)
27 #define LAN_RESET_N TEGRA_GPIO(S, 2)
28 #define FAN_EN TEGRA_GPIO(DD, 2)
29 #define LAN_WAKE_N TEGRA_GPIO(O, 5)
30 #ifdef CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT
31 #define PEX_PERST_N TEGRA_GPIO(DD, 1) /* Apalis GPIO7 */
32 #define RESET_MOCI_CTRL TEGRA_GPIO(U, 4)
33 #endif /* CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT */
34 #define VCC_USBH TEGRA_GPIO(T, 6)
35 #define VCC_USBH_V1_0 TEGRA_GPIO(N, 5)
36 #define VCC_USBO1 TEGRA_GPIO(T, 5)
37 #define VCC_USBO1_V1_0 TEGRA_GPIO(N, 4)
39 int arch_misc_init(void)
41 if (readl(NV_PA_BASE_SRAM + NVBOOTINFOTABLE_BOOTTYPE) ==
42 NVBOOTTYPE_RECOVERY) {
43 printf("USB recovery mode, attempting to boot Toradex Easy "
45 env_set("bootdelay", "-2");
46 env_set("defargs", "pcie_aspm=off user_debug=30");
47 env_set("fdt_high", "");
48 env_set("initrd_high", "");
50 env_set("setup", "env set setupargs igb_mac=${ethaddr} "
51 "consoleblank=0 no_console_suspend=1 "
52 "console=${console},${baudrate}n8 ${memargs}");
53 env_set("teziargs", "rootfstype=squashfs root=/dev/ram quiet "
55 env_set("vidargs", "video=HDMI-A-1:640x480-16@60D");
56 env_set("bootcmd", "run setup; env set bootargs ${defargs} "
57 "${setupargs} ${vidargs} ${teziargs}; bootm 0x80208000"
58 "#config@${soc}-${fdt_module}-${fdt_board}.dtb");
61 /* PCB Version Indication: V1.2 and later have GPIO_PV0 wired to GND */
62 gpio_request(TEGRA_GPIO(V, 0), "PCB Version Indication");
63 gpio_direction_input(TEGRA_GPIO(V, 0));
64 if (gpio_get_value(TEGRA_GPIO(V, 0))) {
66 * if using the default device tree for new V1.2 and later HW,
67 * use version for older V1.0 and V1.1 HW
69 char *fdt_env = env_get("fdt_module");
71 if (fdt_env && !strcmp(FDT_MODULE, fdt_env)) {
72 env_set("fdt_module", FDT_MODULE_V1_0);
73 printf("patching fdt_module to " FDT_MODULE_V1_0
74 " for older V1.0 and V1.1 HW\n");
77 /* activate USB power enable GPIOs */
78 gpio_request(VCC_USBH_V1_0, "VCC_USBH");
79 gpio_direction_output(VCC_USBH_V1_0, 1);
80 gpio_request(VCC_USBO1_V1_0, "VCC_USBO1");
81 gpio_direction_output(VCC_USBO1_V1_0, 1);
83 /* activate USB power enable GPIOs */
84 gpio_request(VCC_USBH, "VCC_USBH");
85 gpio_direction_output(VCC_USBH, 1);
86 gpio_request(VCC_USBO1, "VCC_USBO1");
87 gpio_direction_output(VCC_USBO1, 1);
95 puts("Model: Toradex Apalis TK1 2GB\n");
100 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
101 int ft_board_setup(void *blob, struct bd_info *bd)
106 if (eth_env_get_enetaddr("ethaddr", enetaddr)) {
107 int err = fdt_find_and_setprop(blob,
108 "/pcie@1003000/pci@2,0/ethernet@0,0",
109 "local-mac-address", enetaddr, 6, 0);
111 /* Older device trees might have used a different node name */
113 err = fdt_find_and_setprop(blob,
114 "/pcie@1003000/pci@2,0/pcie@0",
115 "local-mac-address", enetaddr, 6, 0);
118 puts(" MAC address updated...\n");
121 return ft_common_board_setup(blob, bd);
126 * Routine: pinmux_init
127 * Description: Do individual peripheral pinmux configs
129 void pinmux_init(void)
131 pinmux_clear_tristate_input_clamping();
133 gpio_config_table(apalis_tk1_gpio_inits,
134 ARRAY_SIZE(apalis_tk1_gpio_inits));
136 pinmux_config_pingrp_table(apalis_tk1_pingrps,
137 ARRAY_SIZE(apalis_tk1_pingrps));
139 pinmux_config_drvgrp_table(apalis_tk1_drvgrps,
140 ARRAY_SIZE(apalis_tk1_drvgrps));
143 #ifdef CONFIG_PCI_TEGRA
144 /* TODO: Convert to driver model */
145 static int as3722_sd_enable(struct udevice *pmic, unsigned int sd)
152 err = pmic_clrsetbits(pmic, AS3722_SD_CONTROL, 0, 1 << sd);
154 pr_err("failed to update SD control register: %d", err);
161 /* TODO: Convert to driver model */
162 static int as3722_ldo_enable(struct udevice *pmic, unsigned int ldo)
165 u8 ctrl_reg = AS3722_LDO_CONTROL0;
171 ctrl_reg = AS3722_LDO_CONTROL1;
175 err = pmic_clrsetbits(pmic, ctrl_reg, 0, 1 << ldo);
177 pr_err("failed to update LDO control register: %d", err);
184 int tegra_pcie_board_init(void)
189 ret = uclass_get_device_by_driver(UCLASS_PMIC,
190 DM_DRIVER_GET(pmic_as3722), &dev);
192 pr_err("failed to find AS3722 PMIC: %d\n", ret);
196 ret = as3722_sd_enable(dev, 4);
198 pr_err("failed to enable SD4: %d\n", ret);
202 ret = as3722_sd_set_voltage(dev, 4, 0x24);
204 pr_err("failed to set SD4 voltage: %d\n", ret);
208 gpio_request(LAN_DEV_OFF_N, "LAN_DEV_OFF_N");
209 gpio_request(LAN_RESET_N, "LAN_RESET_N");
210 gpio_request(LAN_WAKE_N, "LAN_WAKE_N");
212 #ifdef CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT
213 gpio_request(PEX_PERST_N, "PEX_PERST_N");
214 gpio_request(RESET_MOCI_CTRL, "RESET_MOCI_CTRL");
215 #endif /* CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT */
220 void tegra_pcie_board_port_reset(struct tegra_pcie_port *port)
222 int index = tegra_pcie_port_index_of_port(port);
224 if (index == 1) { /* I210 Gigabit Ethernet Controller (On-module) */
228 ret = uclass_get_device_by_driver(UCLASS_PMIC,
229 DM_DRIVER_GET(pmic_as3722),
232 debug("%s: Failed to find PMIC\n", __func__);
236 /* Reset I210 Gigabit Ethernet Controller */
237 gpio_direction_output(LAN_RESET_N, 0);
240 * Make sure we don't get any back feeding from DEV_OFF_N resp.
243 gpio_direction_output(LAN_DEV_OFF_N, 0);
244 gpio_direction_output(LAN_WAKE_N, 0);
246 /* Make sure LDO9 and LDO10 are initially enabled @ 0V */
247 ret = as3722_ldo_enable(dev, 9);
249 pr_err("failed to enable LDO9: %d\n", ret);
252 ret = as3722_ldo_enable(dev, 10);
254 pr_err("failed to enable LDO10: %d\n", ret);
257 ret = as3722_ldo_set_voltage(dev, 9, 0x80);
259 pr_err("failed to set LDO9 voltage: %d\n", ret);
262 ret = as3722_ldo_set_voltage(dev, 10, 0x80);
264 pr_err("failed to set LDO10 voltage: %d\n", ret);
268 /* Make sure controller gets enabled by disabling DEV_OFF_N */
269 gpio_set_value(LAN_DEV_OFF_N, 1);
272 * Enable LDO9 and LDO10 for +V3.3_ETH on patched prototype
273 * V1.0A and sample V1.0B and newer modules
275 ret = as3722_ldo_set_voltage(dev, 9, 0xff);
277 pr_err("failed to set LDO9 voltage: %d\n", ret);
280 ret = as3722_ldo_set_voltage(dev, 10, 0xff);
282 pr_err("failed to set LDO10 voltage: %d\n", ret);
287 * Must be asserted for 100 ms after power and clocks are stable
291 gpio_set_value(LAN_RESET_N, 1);
292 } else if (index == 0) { /* Apalis PCIe */
293 #ifdef CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT
295 * Reset PLX PEX 8605 PCIe Switch plus PCIe devices on Apalis
298 gpio_direction_output(PEX_PERST_N, 0);
299 gpio_direction_output(RESET_MOCI_CTRL, 0);
302 * Must be asserted for 100 ms after power and clocks are stable
306 gpio_set_value(PEX_PERST_N, 1);
308 * Err_5: PEX_REFCLK_OUTpx/nx Clock Outputs is not Guaranteed
309 * Until 900 us After PEX_PERST# De-assertion
312 gpio_set_value(RESET_MOCI_CTRL, 1);
313 #endif /* CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT */
316 #endif /* CONFIG_PCI_TEGRA */
319 * Enable/start PWM CPU fan
321 void start_cpu_fan(void)
323 gpio_request(FAN_EN, "FAN_EN");
324 gpio_direction_output(FAN_EN, 1);
328 * Backlight off before OS handover
330 void board_preboot_os(void)
332 gpio_request(TEGRA_GPIO(BB, 5), "BL_ON");
333 gpio_direction_output(TEGRA_GPIO(BB, 5), 0);