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1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  *  Copyright (C) 2012 Altera Corporation <www.altera.com>
4  */
5 
6 #include <common.h>
7 #include <eeprom.h>
8 #include <env.h>
9 #include <init.h>
10 #include <status_led.h>
11 #include <asm/arch/reset_manager.h>
12 #include <asm/io.h>
13 #include <asm/gpio.h>
14 #include <i2c.h>
15 
16 DECLARE_GLOBAL_DATA_PTR;
17 
18 /*
19  * Miscellaneous platform dependent initialisations
20  */
board_late_init(void)21 int board_late_init(void)
22 {
23 	const unsigned int phy_nrst_gpio = 0;
24 	const unsigned int usb_nrst_gpio = 35;
25 	int ret;
26 
27 	status_led_set(1, CONFIG_LED_STATUS_ON);
28 	status_led_set(2, CONFIG_LED_STATUS_ON);
29 
30 	/* Address of boot parameters for ATAG (if ATAG is used) */
31 	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
32 
33 	ret = gpio_request(phy_nrst_gpio, "phy_nrst_gpio");
34 	if (!ret)
35 		gpio_direction_output(phy_nrst_gpio, 1);
36 	else
37 		printf("Cannot remove PHY from reset!\n");
38 
39 	ret = gpio_request(usb_nrst_gpio, "usb_nrst_gpio");
40 	if (!ret)
41 		gpio_direction_output(usb_nrst_gpio, 1);
42 	else
43 		printf("Cannot remove USB from reset!\n");
44 
45 	mdelay(50);
46 
47 	return 0;
48 }
49 
50 #ifndef CONFIG_SPL_BUILD
misc_init_r(void)51 int misc_init_r(void)
52 {
53 	uchar data[128];
54 	char str[32];
55 	u32 serial;
56 	int ret;
57 
58 	/* EEPROM is at address 0x50 (at bus CONFIG_SYS_EEPROM_BUS_NUM). */
59 	ret = eeprom_read(0x50, 0, data, sizeof(data));
60 	if (ret) {
61 		puts("Cannot read I2C EEPROM.\n");
62 		return 0;
63 	}
64 
65 	/* Check EEPROM signature. */
66 	if (!(data[0] == 0xa5 && data[1] == 0x5a)) {
67 		puts("Invalid I2C EEPROM signature.\n");
68 		env_set("unit_serial", "invalid");
69 		env_set("unit_ident", "VINing-xxxx-STD");
70 		env_set("hostname", "vining-invalid");
71 		return 0;
72 	}
73 
74 	/* If 'unit_serial' is already set, do nothing. */
75 	if (!env_get("unit_serial")) {
76 		/* This field is Big Endian ! */
77 		serial = (data[0x54] << 24) | (data[0x55] << 16) |
78 			 (data[0x56] << 8) | (data[0x57] << 0);
79 		memset(str, 0, sizeof(str));
80 		sprintf(str, "%07i", serial);
81 		env_set("unit_serial", str);
82 	}
83 
84 	if (!env_get("unit_ident")) {
85 		memset(str, 0, sizeof(str));
86 		memcpy(str, &data[0x2e], 18);
87 		env_set("unit_ident", str);
88 	}
89 
90 	/* Set ethernet address from EEPROM. */
91 	if (!env_get("ethaddr") && is_valid_ethaddr(&data[0x62]))
92 		eth_env_set_enetaddr("ethaddr", &data[0x62]);
93 	if (!env_get("eth1addr") && is_valid_ethaddr(&data[0x6a]))
94 		eth_env_set_enetaddr("eth1addr", &data[0x6a]);
95 
96 	return 0;
97 }
98 #endif
99