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 phy_nrst_gpio = 0;
27 const unsigned int usb_nrst_gpio = 35;
28 int ret;
29
30 status_led_set(1, CONFIG_LED_STATUS_ON);
31 status_led_set(2, CONFIG_LED_STATUS_ON);
32
33 /* Address of boot parameters for ATAG (if ATAG is used) */
34 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
35
36 ret = gpio_request(phy_nrst_gpio, "phy_nrst_gpio");
37 if (!ret)
38 gpio_direction_output(phy_nrst_gpio, 1);
39 else
40 printf("Cannot remove PHY from reset!\n");
41
42 ret = gpio_request(usb_nrst_gpio, "usb_nrst_gpio");
43 if (!ret)
44 gpio_direction_output(usb_nrst_gpio, 1);
45 else
46 printf("Cannot remove USB from reset!\n");
47
48 mdelay(50);
49
50 return 0;
51 }
52
53 #ifndef CONFIG_SPL_BUILD
misc_init_r(void)54 int misc_init_r(void)
55 {
56 uchar data[128];
57 char str[32];
58 u32 serial;
59 int ret;
60
61 /* EEPROM is at address 0x50 (at bus CONFIG_SYS_EEPROM_BUS_NUM). */
62 ret = eeprom_read(0x50, 0, data, sizeof(data));
63 if (ret) {
64 puts("Cannot read I2C EEPROM.\n");
65 return 0;
66 }
67
68 /* Check EEPROM signature. */
69 if (!(data[0] == 0xa5 && data[1] == 0x5a)) {
70 puts("Invalid I2C EEPROM signature.\n");
71 env_set("unit_serial", "invalid");
72 env_set("unit_ident", "VINing-xxxx-STD");
73 env_set("hostname", "vining-invalid");
74 return 0;
75 }
76
77 /* If 'unit_serial' is already set, do nothing. */
78 if (!env_get("unit_serial")) {
79 /* This field is Big Endian ! */
80 serial = (data[0x54] << 24) | (data[0x55] << 16) |
81 (data[0x56] << 8) | (data[0x57] << 0);
82 memset(str, 0, sizeof(str));
83 sprintf(str, "%07i", serial);
84 env_set("unit_serial", str);
85 }
86
87 if (!env_get("unit_ident")) {
88 memset(str, 0, sizeof(str));
89 memcpy(str, &data[0x2e], 18);
90 env_set("unit_ident", str);
91 }
92
93 /* Set ethernet address from EEPROM. */
94 if (!env_get("ethaddr") && is_valid_ethaddr(&data[0x62]))
95 eth_env_set_enetaddr("ethaddr", &data[0x62]);
96 if (!env_get("eth1addr") && is_valid_ethaddr(&data[0x6a]))
97 eth_env_set_enetaddr("eth1addr", &data[0x6a]);
98
99 return 0;
100 }
101 #endif
102