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https://github.com/brain-hackers/u-boot-brain
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e3409a4cb7
Engicam EDIMM2.2 Starter Kit is an EDIMM 2.2 Form Factor Capacitive
Evaluation Board.
Genaral features:
- LCD 7" C.Touch
- microSD slot
- Ethernet 1Gb
- Wifi/BT
- 2x LVDS Full HD interfaces
- 3x USB 2.0
- 1x USB 3.0
- HDMI Out
- Mini PCIe
- MIPI CSI
- 2x CAN
- Audio Out
i.Core MX8M Mini is an EDIMM SoM based on NXP i.MX8M Mini from Engicam.
i.Core MX8M Mini needs to mount on top of this Evaluation board for
creating complete i.Core MX8M Mini EDIMM2.2 Starter Kit.
Linux dts commit details:
commit <051c08eea682> ("arm64: dts: imx8mm: Add Engicam i.Core MX8M Mini
EDIMM2.2 Starter Kit")
Add support for it.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
86 lines
1.8 KiB
C
86 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2016 Amarula Solutions B.V.
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* Copyright (C) 2016 Engicam S.r.l.
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* Author: Jagan Teki <jagan@amarulasolutions.com>
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*/
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#include <common.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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#include <asm-generic/gpio.h>
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#include <linux/delay.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/imx8mm_pins.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/mach-imx/gpio.h>
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#include <asm/mach-imx/iomux-v3.h>
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DECLARE_GLOBAL_DATA_PTR;
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#if IS_ENABLED(CONFIG_FEC_MXC)
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#define FEC_RST_PAD IMX_GPIO_NR(3, 7)
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static iomux_v3_cfg_t const fec1_rst_pads[] = {
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IMX8MM_PAD_NAND_DATA01_GPIO3_IO7 | MUX_PAD_CTRL(NO_PAD_CTRL),
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};
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static void setup_iomux_fec(void)
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{
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imx_iomux_v3_setup_multiple_pads(fec1_rst_pads,
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ARRAY_SIZE(fec1_rst_pads));
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gpio_request(FEC_RST_PAD, "fec1_rst");
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gpio_direction_output(FEC_RST_PAD, 0);
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udelay(500);
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gpio_direction_output(FEC_RST_PAD, 1);
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}
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static int 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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setup_iomux_fec();
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/* Use 125M anatop REF_CLK1 for ENET1, not from external */
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clrsetbits_le32(&gpr->gpr[1], 13, 0);
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return set_clk_enet(ENET_125MHZ);
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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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#endif
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int board_init(void)
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{
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if (IS_ENABLED(CONFIG_FEC_MXC))
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setup_fec();
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return 0;
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}
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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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