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

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