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
setup_fec(void)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
board_phy_config(struct phy_device * phydev)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
board_init(void)61 int board_init(void)
62 {
63 if (IS_ENABLED(CONFIG_FEC_MXC))
64 setup_fec();
65
66 return 0;
67 }
68
board_mmc_get_env_dev(int devno)69 int board_mmc_get_env_dev(int devno)
70 {
71 return devno;
72 }
73