mirror of
https://github.com/AsahiLinux/u-boot
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fea6607317
Add support for ethernet on the imx8mn-ddr4-evk. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Fabio Estevam <festevam@gmail.com> Cc: Peng Fan <peng.fan@nxp.com> Cc: Stefano Babic <sbabic@denx.de>
60 lines
1.2 KiB
C
60 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2019 NXP
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*/
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#include <common.h>
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#include <env.h>
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#include <init.h>
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#include <asm/global_data.h>
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#include <miiphy.h>
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#include <netdev.h>
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#include <asm/io.h>
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DECLARE_GLOBAL_DATA_PTR;
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int board_mmc_get_env_dev(int devno)
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{
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return devno;
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}
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static void setup_fec(void)
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{
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struct iomuxc_gpr_base_regs *gpr =
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(struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR;
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/* Use 125M anatop REF_CLK1 for ENET1, not from external */
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clrsetbits_le32(&gpr->gpr[1], 0x2000, 0);
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}
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int board_phy_config(struct phy_device *phydev)
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{
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/* enable rgmii rxc skew and phy mode select to RGMII copper */
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phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f);
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phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x8);
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phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x00);
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phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x82ee);
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phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05);
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phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100);
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if (phydev->drv->config)
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phydev->drv->config(phydev);
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return 0;
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}
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int board_init(void)
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{
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setup_fec();
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return 0;
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}
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int board_late_init(void)
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{
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#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
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env_set("board_name", "DDR4 EVK");
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env_set("board_rev", "iMX8MN");
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#endif
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return 0;
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}
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