115 lines
2.2 KiB
C
115 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2021 Linumiz
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* Author: Navin Sankar Velliangiri <navin@linumiz.com>
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*/
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#include <init.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/crm_regs.h>
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#include <asm/arch/iomux.h>
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#include <asm/arch/mx6-pins.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/mach-imx/iomux-v3.h>
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#include <asm/mach-imx/mxc_i2c.h>
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#include <fsl_esdhc_imx.h>
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#include <linux/bitops.h>
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#include <miiphy.h>
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#include <net.h>
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#include <netdev.h>
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#include <usb.h>
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#include <usb/ehci-ci.h>
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DECLARE_GLOBAL_DATA_PTR;
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int dram_init(void)
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{
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gd->ram_size = imx_ddr_size();
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return 0;
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}
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#define UART_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
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PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
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PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | \
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PAD_CTL_HYS)
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static iomux_v3_cfg_t const uart1_pads[] = {
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MX6_PAD_UART1_TX_DATA__UART1_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
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MX6_PAD_UART1_RX_DATA__UART1_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
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};
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static void setup_iomux_uart(void)
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{
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imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
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}
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int board_early_init_f(void)
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{
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setup_iomux_uart();
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return 0;
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}
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#ifdef CONFIG_FEC_MXC
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static int setup_fec(int fec_id)
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{
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struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
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int ret;
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if (fec_id == 0) {
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/*
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* Use 50MHz anatop loopback REF_CLK1 for ENET1,
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* clear gpr1[13], set gpr1[17].
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*/
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clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC1_MASK,
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IOMUX_GPR1_FEC1_CLOCK_MUX1_SEL_MASK);
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} else {
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/*
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* Use 50MHz anatop loopbak REF_CLK2 for ENET2,
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* clear gpr1[14], set gpr1[18].
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*/
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clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC2_MASK,
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IOMUX_GPR1_FEC2_CLOCK_MUX1_SEL_MASK);
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}
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ret = enable_fec_anatop_clock(fec_id, ENET_50MHZ);
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if (ret)
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return ret;
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enable_enet_clk(1);
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return 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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phy_write(phydev, MDIO_DEVAD_NONE, 0x1f, 0x8190);
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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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#endif
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int board_init(void)
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{
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/* Address of boot parameters */
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gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
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#ifdef CONFIG_FEC_MXC
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setup_fec(CONFIG_FEC_ENET_DEV);
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#endif
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return 0;
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}
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int checkboard(void)
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{
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printf("Board: Seeed NPi i.MX6ULL Dev Board\n");
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return 0;
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}
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