LXR uboot/board/bct-brettl2/bct-brettl2.c

   1/*
   2 * U-boot - main board file for BCT brettl2
   3 *
   4 * Copyright (c) 2010 BCT Electronic GmbH
   5 *
   6 * Licensed under the GPL-2 or later.
   7 */
   8
   9#include <common.h>
  10#include <config.h>
  11#include <command.h>
  12#include <asm/blackfin.h>
  13#include <asm/portmux.h>
  14#include <asm/gpio.h>
  15#include <asm/net.h>
  16#include <net.h>
  17#include <netdev.h>
  18#include <miiphy.h>
  19
  20#include "../cm-bf537e/gpio_cfi_flash.h"
  21#include "smsc9303.h"
  22
  23DECLARE_GLOBAL_DATA_PTR;
  24
  25int checkboard(void)
  26{
  27        printf("Board: bct-brettl2 board\n");
  28        printf("       Support: http://www.bct-electronic.com/\n");
  29        return 0;
  30}
  31
  32#ifdef CONFIG_BFIN_MAC
  33static void board_init_enetaddr(uchar *mac_addr)
  34{
  35        puts("Warning: Generating 'random' MAC address\n");
  36        bfin_gen_rand_mac(mac_addr);
  37        eth_setenv_enetaddr("ethaddr", mac_addr);
  38}
  39
  40int board_eth_init(bd_t *bis)
  41{
  42        int retry = 3;
  43        int ret;
  44
  45        ret = bfin_EMAC_initialize(bis);
  46
  47        uchar enetaddr[6];
  48        if (eth_getenv_enetaddr("ethaddr", enetaddr)) {
  49                printf("setting MAC %pM\n", enetaddr);
  50        }
  51        puts("       ");
  52
  53        puts("initialize SMSC LAN9303i ethernet switch\n");
  54
  55        while (retry-- > 0) {
  56                if (init_smsc9303i_mii())
  57                        return ret;
  58        }
  59
  60        return ret;
  61}
  62#endif
  63
  64static void init_tlv320aic31(void)
  65{
  66        puts("Audio: setup TIMER0 to enable 16.384 MHz clock for tlv320aic31\n");
  67        peripheral_request(P_TMR0, "tlv320aic31 clock");
  68        bfin_write_TIMER0_CONFIG(0x020d);
  69        bfin_write_TIMER0_PERIOD(0x0008);
  70        bfin_write_TIMER0_WIDTH(0x0008/2);
  71        bfin_write_TIMER_ENABLE(bfin_read_TIMER_ENABLE() | 1);
  72        SSYNC();
  73        udelay(10000);
  74
  75        puts("       resetting tlv320aic31\n");
  76
  77        gpio_request(GPIO_PF2, "tlv320aic31");
  78        gpio_direction_output(GPIO_PF2, 0);
  79        udelay(10000);
  80        gpio_direction_output(GPIO_PF2, 1);
  81        udelay(10000);
  82        gpio_free(GPIO_PF2);
  83}
  84
  85static void init_mute_pin(void)
  86{
  87        printf("       unmute class D amplifier\n");
  88
  89        gpio_request(GPIO_PF5, "mute");
  90        gpio_direction_output(GPIO_PF5, 1);
  91        gpio_free(GPIO_PF5);
  92}
  93
  94/* sometimes LEDs (speech, status) are still on after reboot, turn 'em off */
  95static void turn_leds_off(void)
  96{
  97        printf("       turn LEDs off\n");
  98
  99        gpio_request(GPIO_PF6, "led");
 100        gpio_direction_output(GPIO_PF6, 0);
 101        gpio_free(GPIO_PF6);
 102
 103        gpio_request(GPIO_PF15, "led");
 104        gpio_direction_output(GPIO_PF15, 0);
 105        gpio_free(GPIO_PF15);
 106}
 107
 108/* miscellaneous platform dependent initialisations */
 109int misc_init_r(void)
 110{
 111#ifdef CONFIG_BFIN_MAC
 112        uchar enetaddr[6];
 113        if (!eth_getenv_enetaddr("ethaddr", enetaddr))
 114                board_init_enetaddr(enetaddr);
 115#endif
 116
 117        gpio_cfi_flash_init();
 118        init_tlv320aic31();
 119        init_mute_pin();
 120        turn_leds_off();
 121
 122        return 0;
 123}
 124