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f38f5f4b MZ |
1 | /* |
2 | * Copyright (c) 2016 Toradex, Inc. | |
3 | * | |
4 | * SPDX-License-Identifier: GPL-2.0+ | |
5 | */ | |
6 | ||
7 | #include <common.h> | |
8 | #include <asm/arch-tegra/ap.h> | |
9 | #include <asm/gpio.h> | |
10 | #include <asm/io.h> | |
11 | #include <asm/arch/gpio.h> | |
12 | #include <asm/arch/pinmux.h> | |
13 | #include <power/as3722.h> | |
14 | ||
15 | #include "../common/tdx-common.h" | |
16 | #include "pinmux-config-apalis-tk1.h" | |
17 | ||
18 | #define LAN_RESET_N TEGRA_GPIO(S, 2) | |
19 | ||
20 | int arch_misc_init(void) | |
21 | { | |
22 | if (readl(NV_PA_BASE_SRAM + NVBOOTINFOTABLE_BOOTTYPE) == | |
23 | NVBOOTTYPE_RECOVERY) | |
24 | printf("USB recovery mode\n"); | |
25 | ||
26 | return 0; | |
27 | } | |
28 | ||
29 | int checkboard(void) | |
30 | { | |
31 | puts("Model: Toradex Apalis TK1 2GB\n"); | |
32 | ||
33 | return 0; | |
34 | } | |
35 | ||
36 | #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) | |
37 | int ft_board_setup(void *blob, bd_t *bd) | |
38 | { | |
39 | return ft_common_board_setup(blob, bd); | |
40 | } | |
41 | #endif | |
42 | ||
43 | /* | |
44 | * Routine: pinmux_init | |
45 | * Description: Do individual peripheral pinmux configs | |
46 | */ | |
47 | void pinmux_init(void) | |
48 | { | |
49 | pinmux_clear_tristate_input_clamping(); | |
50 | ||
51 | gpio_config_table(apalis_tk1_gpio_inits, | |
52 | ARRAY_SIZE(apalis_tk1_gpio_inits)); | |
53 | ||
54 | pinmux_config_pingrp_table(apalis_tk1_pingrps, | |
55 | ARRAY_SIZE(apalis_tk1_pingrps)); | |
56 | ||
57 | pinmux_config_drvgrp_table(apalis_tk1_drvgrps, | |
58 | ARRAY_SIZE(apalis_tk1_drvgrps)); | |
59 | } | |
60 | ||
61 | #ifdef CONFIG_PCI_TEGRA | |
62 | int tegra_pcie_board_init(void) | |
63 | { | |
64 | struct udevice *pmic; | |
65 | int err; | |
66 | ||
67 | err = as3722_init(&pmic); | |
68 | if (err) { | |
69 | error("failed to initialize AS3722 PMIC: %d\n", err); | |
70 | return err; | |
71 | } | |
72 | ||
73 | err = as3722_sd_enable(pmic, 4); | |
74 | if (err < 0) { | |
75 | error("failed to enable SD4: %d\n", err); | |
76 | return err; | |
77 | } | |
78 | ||
79 | err = as3722_sd_set_voltage(pmic, 4, 0x24); | |
80 | if (err < 0) { | |
81 | error("failed to set SD4 voltage: %d\n", err); | |
82 | return err; | |
83 | } | |
84 | ||
85 | err = as3722_gpio_configure(pmic, 1, AS3722_GPIO_OUTPUT_VDDH | | |
86 | AS3722_GPIO_INVERT); | |
87 | if (err < 0) { | |
88 | error("failed to configure GPIO#1 as output: %d\n", err); | |
89 | return err; | |
90 | } | |
91 | ||
92 | err = as3722_gpio_direction_output(pmic, 2, 1); | |
93 | if (err < 0) { | |
94 | error("failed to set GPIO#2 high: %d\n", err); | |
95 | return err; | |
96 | } | |
97 | ||
98 | /* Reset I210 Gigabit Ethernet Controller */ | |
99 | gpio_request(LAN_RESET_N, "LAN_RESET_N"); | |
100 | gpio_direction_output(LAN_RESET_N, 0); | |
101 | ||
102 | /* | |
103 | * Make sure we don't get any back feeding from LAN_WAKE_N resp. | |
104 | * DEV_OFF_N | |
105 | */ | |
106 | gpio_request(TEGRA_GPIO(O, 5), "LAN_WAKE_N"); | |
107 | gpio_direction_output(TEGRA_GPIO(O, 5), 0); | |
108 | ||
109 | gpio_request(TEGRA_GPIO(O, 6), "LAN_DEV_OFF_N"); | |
110 | gpio_direction_output(TEGRA_GPIO(O, 6), 0); | |
111 | ||
112 | /* Make sure LDO9 and LDO10 are initially enabled @ 0V */ | |
113 | err = as3722_ldo_enable(pmic, 9); | |
114 | if (err < 0) { | |
115 | error("failed to enable LDO9: %d\n", err); | |
116 | return err; | |
117 | } | |
118 | err = as3722_ldo_enable(pmic, 10); | |
119 | if (err < 0) { | |
120 | error("failed to enable LDO10: %d\n", err); | |
121 | return err; | |
122 | } | |
123 | err = as3722_ldo_set_voltage(pmic, 9, 0x80); | |
124 | if (err < 0) { | |
125 | error("failed to set LDO9 voltage: %d\n", err); | |
126 | return err; | |
127 | } | |
128 | err = as3722_ldo_set_voltage(pmic, 10, 0x80); | |
129 | if (err < 0) { | |
130 | error("failed to set LDO10 voltage: %d\n", err); | |
131 | return err; | |
132 | } | |
133 | ||
134 | mdelay(100); | |
135 | ||
136 | /* Make sure controller gets enabled by disabling DEV_OFF_N */ | |
137 | gpio_set_value(TEGRA_GPIO(O, 6), 1); | |
138 | ||
139 | /* Enable LDO9 and LDO10 for +V3.3_ETH on patched prototypes */ | |
140 | err = as3722_ldo_set_voltage(pmic, 9, 0xff); | |
141 | if (err < 0) { | |
142 | error("failed to set LDO9 voltage: %d\n", err); | |
143 | return err; | |
144 | } | |
145 | err = as3722_ldo_set_voltage(pmic, 10, 0xff); | |
146 | if (err < 0) { | |
147 | error("failed to set LDO10 voltage: %d\n", err); | |
148 | return err; | |
149 | } | |
150 | ||
151 | mdelay(100); | |
152 | gpio_set_value(LAN_RESET_N, 1); | |
153 | ||
154 | #ifdef APALIS_TK1_PCIE_EVALBOARD_INIT | |
155 | #define PEX_PERST_N TEGRA_GPIO(DD, 1) /* Apalis GPIO7 */ | |
156 | #define RESET_MOCI_CTRL TEGRA_GPIO(U, 4) | |
157 | ||
158 | /* Reset PLX PEX 8605 PCIe Switch plus PCIe devices on Apalis Evaluation | |
159 | Board */ | |
160 | gpio_request(PEX_PERST_N, "PEX_PERST_N"); | |
161 | gpio_request(RESET_MOCI_CTRL, "RESET_MOCI_CTRL"); | |
162 | gpio_direction_output(PEX_PERST_N, 0); | |
163 | gpio_direction_output(RESET_MOCI_CTRL, 0); | |
164 | /* Must be asserted for 100 ms after power and clocks are stable */ | |
165 | mdelay(100); | |
166 | gpio_set_value(PEX_PERST_N, 1); | |
167 | /* Err_5: PEX_REFCLK_OUTpx/nx Clock Outputs is not Guaranteed Until | |
168 | 900 us After PEX_PERST# De-assertion */ | |
169 | mdelay(1); | |
170 | gpio_set_value(RESET_MOCI_CTRL, 1); | |
171 | #endif /* APALIS_T30_PCIE_EVALBOARD_INIT */ | |
172 | ||
173 | return 0; | |
174 | } | |
175 | #endif /* CONFIG_PCI_TEGRA */ |