LXR uboot/board/ppcag/bg0900/bg0900.c

   1/*
   2 * PPC-AG BG0900 board
   3 *
   4 * Copyright (C) 2013 Marek Vasut <marex@denx.de>
   5 *
   6 * SPDX-License-Identifier:     GPL-2.0+
   7 */
   8
   9#include <common.h>
  10#include <asm/gpio.h>
  11#include <asm/io.h>
  12#include <asm/arch/imx-regs.h>
  13#include <asm/arch/iomux-mx28.h>
  14#include <asm/arch/clock.h>
  15#include <asm/arch/sys_proto.h>
  16#include <linux/mii.h>
  17#include <miiphy.h>
  18#include <netdev.h>
  19#include <errno.h>
  20
  21DECLARE_GLOBAL_DATA_PTR;
  22
  23/*
  24 * Functions
  25 */
  26int board_early_init_f(void)
  27{
  28        /* IO0 clock at 480MHz */
  29        mxs_set_ioclk(MXC_IOCLK0, 480000);
  30        /* IO1 clock at 480MHz */
  31        mxs_set_ioclk(MXC_IOCLK1, 480000);
  32
  33        /* SSP2 clock at 160MHz */
  34        mxs_set_sspclk(MXC_SSPCLK2, 160000, 0);
  35
  36        return 0;
  37}
  38
  39int dram_init(void)
  40{
  41        return mxs_dram_init();
  42}
  43
  44int board_init(void)
  45{
  46        /* Adress of boot parameters */
  47        gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
  48
  49        return 0;
  50}
  51
  52#ifdef CONFIG_CMD_NET
  53int board_eth_init(bd_t *bis)
  54{
  55        struct mxs_clkctrl_regs *clkctrl_regs =
  56                (struct mxs_clkctrl_regs *)MXS_CLKCTRL_BASE;
  57        struct eth_device *dev;
  58        int ret;
  59
  60        ret = cpu_eth_init(bis);
  61
  62        /* BG0900 uses ENET_CLK PAD to drive FEC clock */
  63        writel(CLKCTRL_ENET_TIME_SEL_RMII_CLK | CLKCTRL_ENET_CLK_OUT_EN,
  64               &clkctrl_regs->hw_clkctrl_enet);
  65
  66        /* Reset FEC PHYs */
  67        gpio_direction_output(MX28_PAD_ENET0_RX_CLK__GPIO_4_13, 0);
  68        udelay(200);
  69        gpio_set_value(MX28_PAD_ENET0_RX_CLK__GPIO_4_13, 1);
  70
  71        ret = fecmxc_initialize_multi(bis, 0, 0, MXS_ENET0_BASE);
  72        if (ret) {
  73                puts("FEC MXS: Unable to init FEC0\n");
  74                return ret;
  75        }
  76
  77        dev = eth_get_dev_by_name("FEC0");
  78        if (!dev) {
  79                puts("FEC MXS: Unable to get FEC0 device entry\n");
  80                return -EINVAL;
  81        }
  82
  83        return ret;
  84}
  85
  86#endif
  87