167 lines
4.2 KiB
C
167 lines
4.2 KiB
C
/*
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* Copyright (C) 2012 Steffen Trumtrar, Pengutronix
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*
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* based on arch/arm/boards/freescale-mx6-arm2/board.c
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <common.h>
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#include <init.h>
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#include <environment.h>
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#include <mach/imx6-regs.h>
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#include <fec.h>
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#include <gpio.h>
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#include <mach/bbu.h>
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#include <asm/armlinux.h>
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#include <generated/mach-types.h>
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#include <partition.h>
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#include <linux/phy.h>
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#include <asm/io.h>
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#include <asm/mmu.h>
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#include <mach/generic.h>
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#include <sizes.h>
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#include <net.h>
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#include <linux/micrel_phy.h>
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#include <mach/imx6.h>
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#include <mach/devices-imx6.h>
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#include <mach/iomux-mx6.h>
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#include <spi/spi.h>
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#include <mach/spi.h>
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#include <mach/usb.h>
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static iomux_v3_cfg_t sabrelite_enet_gpio_pads[] = {
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/* Ethernet */
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MX6Q_PAD_EIM_D23__GPIO_3_23, /* RGMII_nRST */
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MX6Q_PAD_RGMII_RXC__GPIO_6_30, /* PHYAD */
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MX6Q_PAD_RGMII_RD0__GPIO_6_25, /* MODE0 */
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MX6Q_PAD_RGMII_RD1__GPIO_6_27, /* MODE1 */
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MX6Q_PAD_RGMII_RD2__GPIO_6_28, /* MODE2 */
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MX6Q_PAD_RGMII_RD3__GPIO_6_29, /* MODE3 */
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MX6Q_PAD_RGMII_RX_CTL__GPIO_6_24,
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};
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static int sabrelite_mem_init(void)
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{
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if (!of_machine_is_compatible("fsl,imx6q-sabrelite") &&
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!of_machine_is_compatible("fsl,imx6dl-sabrelite"))
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return 0;
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arm_add_mem_device("ram0", 0x10000000, SZ_1G);
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return 0;
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}
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mem_initcall(sabrelite_mem_init);
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static int ksz9021rn_phy_fixup(struct phy_device *dev)
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{
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phy_write(dev, 0x09, 0x0f00);
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/* do same as linux kernel */
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/* min rx data delay */
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phy_write(dev, 0x0b, 0x8105);
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phy_write(dev, 0x0c, 0x0000);
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/* max rx/tx clock delay, min rx/tx control delay */
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phy_write(dev, 0x0b, 0x8104);
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phy_write(dev, 0x0c, 0xf0f0);
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phy_write(dev, 0x0b, 0x104);
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return 0;
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}
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static int sabrelite_ksz9021rn_setup(void)
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{
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if (!of_machine_is_compatible("fsl,imx6q-sabrelite") &&
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!of_machine_is_compatible("fsl,imx6dl-sabrelite"))
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return 0;
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mxc_iomux_v3_setup_multiple_pads(sabrelite_enet_gpio_pads,
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ARRAY_SIZE(sabrelite_enet_gpio_pads));
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gpio_direction_output(87, 0); /* GPIO 3-23 */
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gpio_direction_output(190, 1); /* GPIO 6-30: PHYAD2 */
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/* LED-Mode: Tri-Color Dual LED Mode */
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gpio_direction_output(23 , 0); /* GPIO 1-23 */
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/* MODE strap-in pins: advertise all capabilities */
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gpio_direction_output(185, 1); /* GPIO 6-25 */
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gpio_direction_output(187, 1); /* GPIO 6-27 */
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gpio_direction_output(188, 1); /* GPIO 6-28*/
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gpio_direction_output(189, 1); /* GPIO 6-29 */
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/* Enable 125 MHz clock output */
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gpio_direction_output(184, 1); /* GPIO 6-24 */
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mdelay(10);
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gpio_set_value(87, 1);
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return 0;
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}
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/*
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* Do this before the fec initializes but after our
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* gpios are available.
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*/
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fs_initcall(sabrelite_ksz9021rn_setup);
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static void sabrelite_ehci_init(void)
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{
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/* hub reset */
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gpio_direction_output(204, 0);
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udelay(2000);
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gpio_set_value(204, 1);
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}
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static int sabrelite_devices_init(void)
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{
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if (!of_machine_is_compatible("fsl,imx6q-sabrelite") &&
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!of_machine_is_compatible("fsl,imx6dl-sabrelite"))
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return 0;
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sabrelite_ehci_init();
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armlinux_set_architecture(3769);
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imx6_bbu_internal_spi_i2c_register_handler("spiflash", "/dev/m25p0.barebox",
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BBU_HANDLER_FLAG_DEFAULT, NULL, 0, 0);
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return 0;
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}
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device_initcall(sabrelite_devices_init);
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static int sabrelite_coredevices_init(void)
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{
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if (!of_machine_is_compatible("fsl,imx6q-sabrelite") &&
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!of_machine_is_compatible("fsl,imx6dl-sabrelite"))
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return 0;
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phy_register_fixup_for_uid(PHY_ID_KSZ9021, MICREL_PHY_ID_MASK,
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ksz9021rn_phy_fixup);
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return 0;
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}
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coredevice_initcall(sabrelite_coredevices_init);
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static int sabrelite_postcore_init(void)
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{
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if (!of_machine_is_compatible("fsl,imx6q-sabrelite") &&
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!of_machine_is_compatible("fsl,imx6dl-sabrelite"))
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return 0;
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imx6_init_lowlevel();
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barebox_set_hostname("sabrelite");
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return 0;
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}
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postcore_initcall(sabrelite_postcore_init);
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