1 /*
2  *  Copyright (C) 2012 Altera Corporation <www.altera.com>
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 
7 #include <common.h>
8 #include <environment.h>
9 #include <asm/arch/reset_manager.h>
10 #include <asm/io.h>
11 #include <asm/gpio.h>
12 #include <i2c.h>
13 
14 DECLARE_GLOBAL_DATA_PTR;
15 
16 /*
17  * Miscellaneous platform dependent initialisations
18  */
19 int board_late_init(void)
20 {
21 	const unsigned int phy_nrst_gpio = 0;
22 	const unsigned int usb_nrst_gpio = 35;
23 	int ret;
24 
25 	status_led_set(1, CONFIG_LED_STATUS_ON);
26 	status_led_set(2, CONFIG_LED_STATUS_ON);
27 
28 	/* Address of boot parameters for ATAG (if ATAG is used) */
29 	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
30 
31 	ret = gpio_request(phy_nrst_gpio, "phy_nrst_gpio");
32 	if (!ret)
33 		gpio_direction_output(phy_nrst_gpio, 1);
34 	else
35 		printf("Cannot remove PHY from reset!\n");
36 
37 	ret = gpio_request(usb_nrst_gpio, "usb_nrst_gpio");
38 	if (!ret)
39 		gpio_direction_output(usb_nrst_gpio, 1);
40 	else
41 		printf("Cannot remove USB from reset!\n");
42 
43 	mdelay(50);
44 
45 	return 0;
46 }
47 
48 #ifndef CONFIG_SPL_BUILD
49 int misc_init_r(void)
50 {
51 	uchar data[128];
52 	char str[32];
53 	u32 serial;
54 	int ret;
55 
56 	/* EEPROM is at bus 0. */
57 	ret = i2c_set_bus_num(0);
58 	if (ret) {
59 		puts("Cannot select EEPROM I2C bus.\n");
60 		return 0;
61 	}
62 
63 	/* EEPROM is at address 0x50. */
64 	ret = eeprom_read(0x50, 0, data, sizeof(data));
65 	if (ret) {
66 		puts("Cannot read I2C EEPROM.\n");
67 		return 0;
68 	}
69 
70 	/* Check EEPROM signature. */
71 	if (!(data[0] == 0xa5 && data[1] == 0x5a)) {
72 		puts("Invalid I2C EEPROM signature.\n");
73 		env_set("unit_serial", "invalid");
74 		env_set("unit_ident", "VINing-xxxx-STD");
75 		env_set("hostname", "vining-invalid");
76 		return 0;
77 	}
78 
79 	/* If 'unit_serial' is already set, do nothing. */
80 	if (!env_get("unit_serial")) {
81 		/* This field is Big Endian ! */
82 		serial = (data[0x54] << 24) | (data[0x55] << 16) |
83 			 (data[0x56] << 8) | (data[0x57] << 0);
84 		memset(str, 0, sizeof(str));
85 		sprintf(str, "%07i", serial);
86 		env_set("unit_serial", str);
87 	}
88 
89 	if (!env_get("unit_ident")) {
90 		memset(str, 0, sizeof(str));
91 		memcpy(str, &data[0x2e], 18);
92 		env_set("unit_ident", str);
93 	}
94 
95 	/* Set ethernet address from EEPROM. */
96 	if (!env_get("ethaddr") && is_valid_ethaddr(&data[0x62]))
97 		eth_env_set_enetaddr("ethaddr", &data[0x62]);
98 
99 	return 0;
100 }
101 #endif
102