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 <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 */
board_late_init(void)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
misc_init_r(void)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