LXR uboot/board/technologic/ts4600/ts4600.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * (C) Copyright 2016 Savoir-faire Linux Inc.
   4 *
   5 * Author: Sebastien Bourdelin <sebastien.bourdelin@savoirfairelinux.com>
   6 *
   7 * Based on work from TS7680 code by:
   8 *   Kris Bahnsen <kris@embeddedarm.com>
   9 *   Mark Featherston <mark@embeddedarm.com>
  10 *   https://github.com/embeddedarm/u-boot/tree/master/board/technologic/ts7680
  11 *
  12 * Derived from MX28EVK code by
  13 *   Freescale Semiconductor, Inc.
  14 */
  15
  16#include <common.h>
  17#include <init.h>
  18#include <asm/gpio.h>
  19#include <asm/io.h>
  20#include <asm/arch/imx-regs.h>
  21#include <asm/arch/iomux-mx28.h>
  22#include <asm/arch/clock.h>
  23#include <asm/arch/sys_proto.h>
  24#include <linux/delay.h>
  25#include <linux/mii.h>
  26#include <miiphy.h>
  27#include <netdev.h>
  28#include <errno.h>
  29
  30DECLARE_GLOBAL_DATA_PTR;
  31
  32int board_early_init_f(void)
  33{
  34        /* IO0 clock at 480MHz */
  35        mxs_set_ioclk(MXC_IOCLK0, 480000);
  36        /* IO1 clock at 480MHz */
  37        mxs_set_ioclk(MXC_IOCLK1, 480000);
  38
  39        /* SSP0 clocks at 96MHz */
  40        mxs_set_sspclk(MXC_SSPCLK0, 96000, 0);
  41
  42        return 0;
  43}
  44
  45int dram_init(void)
  46{
  47        return mxs_dram_init();
  48}
  49
  50int board_init(void)
  51{
  52        /* Adress of boot parameters */
  53        gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
  54
  55        return 0;
  56}
  57
  58#ifdef CONFIG_CMD_MMC
  59static int ts4600_mmc_cd(int id)
  60{
  61        return 1;
  62}
  63
  64int board_mmc_init(struct bd_info *bis)
  65{
  66        int ret;
  67
  68        mxs_iomux_setup_pad(MX28_PAD_PWM3__GPIO_3_28);
  69
  70        /* Power-on SD */
  71        gpio_direction_output(MX28_PAD_PWM3__GPIO_3_28, 1);
  72        udelay(1000);
  73        gpio_direction_output(MX28_PAD_PWM3__GPIO_3_28, 0);
  74
  75        /* SD card */
  76        ret = mxsmmc_initialize(bis, 0, NULL, ts4600_mmc_cd);
  77        if(ret != 0) {
  78                printf("SD controller initialized with %d\n", ret);
  79        }
  80
  81        return ret;
  82}
  83#endif
  84
  85int checkboard(void)
  86{
  87        puts("Board: TS4600\n");
  88
  89        return 0;
  90}
  91