board/softing/vining_fpga/socfpga.c

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