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