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