u-boot/board/freescale/imx93_evk/imx93_evk.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright 2022 NXP
 */

#include <common.h>
#include <env.h>
#include <init.h>
#include <miiphy.h>
#include <netdev.h>
#include <asm/global_data.h>
#include <asm/arch-imx9/ccm_regs.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch-imx9/imx93_pins.h>
#include <asm/arch/clock.h>
#include <power/pmic.h>
#include <dm/device.h>
#include <dm/uclass.h>
#include <usb.h>
#include <dwc3-uboot.h>

DECLARE_GLOBAL_DATA_PTR;

#define UART_PAD_CTRL	(PAD_CTL_DSE(6) | PAD_CTL_FSEL2)
#define WDOG_PAD_CTRL	(PAD_CTL_DSE(6) | PAD_CTL_ODE | PAD_CTL_PUE | PAD_CTL_PE)

static iomux_v3_cfg_t const uart_pads[] = {
	MX93_PAD_UART1_RXD__LPUART1_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
	MX93_PAD_UART1_TXD__LPUART1_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
};

int board_early_init_f(void)
{
	imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));

	init_uart_clk(LPUART1_CLK_ROOT);

	return 0;
}

static int setup_fec(void)
{
	return set_clk_enet(ENET_125MHZ);
}

int board_phy_config(struct phy_device *phydev)
{
	if (phydev->drv->config)
		phydev->drv->config(phydev);

	return 0;
}

static int setup_eqos(void)
{
	struct blk_ctrl_wakeupmix_regs *bctrl =
		(struct blk_ctrl_wakeupmix_regs *)BLK_CTRL_WAKEUPMIX_BASE_ADDR;

	/* set INTF as RGMII, enable RGMII TXC clock */
	clrsetbits_le32(&bctrl->eqos_gpr,
			BCTRL_GPR_ENET_QOS_INTF_MODE_MASK,
			BCTRL_GPR_ENET_QOS_INTF_SEL_RGMII | BCTRL_GPR_ENET_QOS_CLK_GEN_EN);

	return set_clk_eqos(ENET_125MHZ);
}

int board_init(void)
{
	if (IS_ENABLED(CONFIG_FEC_MXC))
		setup_fec();

	if (IS_ENABLED(CONFIG_DWC_ETH_QOS))
		setup_eqos();

	return 0;
}

int board_late_init(void)
{
#ifdef CONFIG_ENV_IS_IN_MMC
	board_late_mmc_env_init();
#endif

#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
	env_set("board_name", "11X11_EVK");
	env_set("board_rev", "iMX93");
#endif
	return 0;
}