148 lines
2.8 KiB
C
148 lines
2.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2017-2019 A. Karas, SomLabs
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* Copyright (C) 2015-2016 Freescale Semiconductor, Inc.
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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/imx-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/global_data.h>
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#include <asm/gpio.h>
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#include <asm/mach-imx/boot_mode.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 <asm/io.h>
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#include <common.h>
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#include <env.h>
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#include <fsl_esdhc_imx.h>
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#include <i2c.h>
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#include <miiphy.h>
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#include <linux/sizes.h>
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#include <mmc.h>
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#include <netdev.h>
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DECLARE_GLOBAL_DATA_PTR;
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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 | PAD_CTL_HYS)
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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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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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#ifdef CONFIG_FEC_MXC
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static int setup_fec(void)
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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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/*
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* Use 50M 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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ret = enable_fec_anatop_clock(0, 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_mmc_get_env_dev(int devno)
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{
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return devno;
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}
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int mmc_map_to_kernel_blk(int devno)
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{
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return devno;
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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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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_SYS_I2C
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setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
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#endif
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#ifdef CONFIG_FEC_MXC
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setup_fec();
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#endif
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return 0;
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}
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#ifdef CONFIG_CMD_BMODE
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static const struct boot_mode board_boot_modes[] = {
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/* 4 bit bus width */
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{"sd1", MAKE_CFGVAL(0x42, 0x20, 0x00, 0x00)},
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{"sd2", MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)},
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{NULL, 0},
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};
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#endif
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int board_late_init(void)
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{
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#ifdef CONFIG_CMD_BMODE
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add_board_boot_modes(board_boot_modes);
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#endif
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if (is_cpu_type(MXC_CPU_MX6ULL))
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env_set("board", "visionsom-6ull");
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else
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env_set("board", "visionsom-6ul");
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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: SoMLabs VisionSOM-6UL%s\n",
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is_cpu_type(MXC_CPU_MX6ULL) ? "L" : "");
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return 0;
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}
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