1// SPDX-License-Identifier: GPL-2.0+
2/*
3 *  Copyright (C) 2012 Lucas Stach
4 */
5
6#include <common.h>
7#include <env.h>
8#include <fdt_support.h>
9#include <init.h>
10#include <log.h>
11#include <asm/arch/clock.h>
12#include <asm/arch/funcmux.h>
13#include <asm/arch/pinmux.h>
14#include <asm/arch-tegra/ap.h>
15#include <asm/arch-tegra/board.h>
16#include <asm/arch-tegra/tegra.h>
17#include <asm/global_data.h>
18#include <asm/gpio.h>
19#include <asm/io.h>
20#include <i2c.h>
21#include <nand.h>
22#include <linux/delay.h>
23#include "../common/tdx-common.h"
24
25DECLARE_GLOBAL_DATA_PTR;
26
27#define PMU_I2C_ADDRESS		0x34
28#define MAX_I2C_RETRY		3
29#define PMU_SUPPLYENE		0x14
30#define PMU_SUPPLYENE_SYSINEN	(1<<5)
31#define PMU_SUPPLYENE_EXITSLREQ	(1<<1)
32
33int arch_misc_init(void)
34{
35	/* Disable PMIC sleep mode on low supply voltage */
36	struct udevice *dev;
37	u8 addr, data[1];
38	int err;
39
40	err = i2c_get_chip_for_busnum(0, PMU_I2C_ADDRESS, 1, &dev);
41	if (err) {
42		debug("%s: Cannot find PMIC I2C chip\n", __func__);
43		return err;
44	}
45
46	addr = PMU_SUPPLYENE;
47
48	err = dm_i2c_read(dev, addr, data, 1);
49	if (err) {
50		debug("failed to get PMU_SUPPLYENE\n");
51		return err;
52	}
53
54	data[0] &= ~PMU_SUPPLYENE_SYSINEN;
55	data[0] |= PMU_SUPPLYENE_EXITSLREQ;
56
57	err = dm_i2c_write(dev, addr, data, 1);
58	if (err) {
59		debug("failed to set PMU_SUPPLYENE\n");
60		return err;
61	}
62
63	/* make sure SODIMM pin 87 nRESET_OUT is released properly */
64	pinmux_set_func(PMUX_PINGRP_ATA, PMUX_FUNC_GMI);
65
66	if (readl(NV_PA_BASE_SRAM + NVBOOTINFOTABLE_BOOTTYPE) ==
67	    NVBOOTTYPE_RECOVERY)
68		printf("USB recovery mode\n");
69
70	return 0;
71}
72
73#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
74int ft_board_setup(void *blob, struct bd_info *bd)
75{
76	u8 enetaddr[6];
77
78	/* MAC addr */
79	if (eth_env_get_enetaddr("ethaddr", enetaddr)) {
80		int err = fdt_find_and_setprop(blob,
81					       "/usb@7d004000/ethernet@1",
82					       "local-mac-address", enetaddr, 6, 0);
83
84		/* Older device trees might have used a different node name */
85		if (err < 0)
86			err = fdt_find_and_setprop(blob,
87						   "/usb@7d004000/asix@1",
88						   "local-mac-address", enetaddr, 6, 0);
89
90		if (err >= 0)
91			puts("   MAC address updated...\n");
92	}
93
94	return ft_common_board_setup(blob, bd);
95}
96#endif
97
98#ifdef CONFIG_MMC_SDHCI_TEGRA
99/*
100 * Routine: pin_mux_mmc
101 * Description: setup the pin muxes/tristate values for the SDMMC(s)
102 */
103void pin_mux_mmc(void)
104{
105	funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATB_GMA_4_BIT);
106	pinmux_tristate_disable(PMUX_PINGRP_GMB);
107}
108#endif
109
110#ifdef CONFIG_TEGRA_NAND
111void pin_mux_nand(void)
112{
113	funcmux_select(PERIPH_ID_NDFLASH, FUNCMUX_NDFLASH_KBC_8_BIT);
114
115	/*
116	 * configure pingroup ATC to something unrelated to
117	 * avoid ATC overriding KBC
118	 */
119	pinmux_set_func(PMUX_PINGRP_ATC, PMUX_FUNC_GMI);
120}
121#endif
122
123#ifdef CONFIG_USB_EHCI_TEGRA
124void pin_mux_usb(void)
125{
126	/* module internal USB bus to connect ethernet chipset */
127	funcmux_select(PERIPH_ID_USB2, FUNCMUX_USB2_ULPI);
128
129	/* ULPI reference clock output */
130	pinmux_set_func(PMUX_PINGRP_CDEV2, PMUX_FUNC_PLLP_OUT4);
131	pinmux_tristate_disable(PMUX_PINGRP_CDEV2);
132
133	/* PHY reset GPIO */
134	pinmux_tristate_disable(PMUX_PINGRP_UAC);
135
136	/* VBus GPIO */
137	pinmux_tristate_disable(PMUX_PINGRP_DTE);
138
139	/* Reset ASIX using LAN_RESET */
140	gpio_request(TEGRA_GPIO(V, 4), "LAN_RESET");
141	gpio_direction_output(TEGRA_GPIO(V, 4), 0);
142	pinmux_tristate_disable(PMUX_PINGRP_GPV);
143	udelay(5);
144	gpio_set_value(TEGRA_GPIO(V, 4), 1);
145
146	/* USBH_PEN: USB 1 aka Tegra USB port 3 VBus */
147	pinmux_tristate_disable(PMUX_PINGRP_SPIG);
148}
149#endif
150
151#ifdef CONFIG_VIDEO_TEGRA20
152/*
153 * Routine: pin_mux_display
154 * Description: setup the pin muxes/tristate values for the LCD interface)
155 */
156void pin_mux_display(void)
157{
158	/*
159	 * Manually untristate BL_ON (PT4 - SODIMM 71) as specified through
160	 * device-tree
161	 */
162	pinmux_tristate_disable(PMUX_PINGRP_DTA);
163
164	pinmux_set_func(PMUX_PINGRP_SDC, PMUX_FUNC_PWM);
165	pinmux_tristate_disable(PMUX_PINGRP_SDC);
166}
167
168/*
169 * Backlight off before OS handover
170 */
171void board_preboot_os(void)
172{
173	gpio_request(TEGRA_GPIO(T, 4), "BL_ON");
174	gpio_direction_output(TEGRA_GPIO(T, 4), 0);
175}
176#endif
177