board/engicam/imx8mm/icore_mx8mm.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2016 Amarula Solutions B.V.
   4  * Copyright (C) 2016 Engicam S.r.l.
   5  * Author: Jagan Teki <jagan@amarulasolutions.com>
   6  */
   7
   8 #include <common.h>
   9 #include <miiphy.h>
  10 #include <netdev.h>
  11
  12 #include <asm/io.h>
  13 #include <asm-generic/gpio.h>
  14
  15 #include <linux/delay.h>
  16
  17 #include <asm/arch/clock.h>
  18 #include <asm/arch/imx8mm_pins.h>
  19 #include <asm/arch/sys_proto.h>
  20 #include <asm/mach-imx/gpio.h>
  21 #include <asm/mach-imx/iomux-v3.h>
  22
  23 DECLARE_GLOBAL_DATA_PTR;
  24
  25 #if IS_ENABLED(CONFIG_FEC_MXC)
  26
  27 #define FEC_RST_PAD IMX_GPIO_NR(3, 7)
  28 static iomux_v3_cfg_t const fec1_rst_pads[] = {
  29         IMX8MM_PAD_NAND_DATA01_GPIO3_IO7 | MUX_PAD_CTRL(NO_PAD_CTRL),
  30 };
  31
  32 static void setup_fec(void)
  33 {
  34         imx_iomux_v3_setup_multiple_pads(fec1_rst_pads,
  35                                          ARRAY_SIZE(fec1_rst_pads));
  36
  37         gpio_request(FEC_RST_PAD, "fec1_rst");
  38         gpio_direction_output(FEC_RST_PAD, 0);
  39         udelay(500);
  40         gpio_direction_output(FEC_RST_PAD, 1);
  41 }
  42
  43 int board_phy_config(struct phy_device *phydev)
  44 {
  45         /* enable rgmii rxc skew and phy mode select to RGMII copper */
  46         phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f);
  47         phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x8);
  48
  49         phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x00);
  50         phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x82ee);
  51         phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05);
  52         phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100);
  53
  54         if (phydev->drv->config)
  55                 phydev->drv->config(phydev);
  56
  57         return 0;
  58 }
  59 #endif
  60
  61 int board_init(void)
  62 {
  63         if (IS_ENABLED(CONFIG_FEC_MXC))
  64                 setup_fec();
  65
  66         return 0;
  67 }
  68
  69 int board_mmc_get_env_dev(int devno)
  70 {
  71         return devno;
  72 }