103 lines
2.4 KiB
C
103 lines
2.4 KiB
C
/*
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* Copyright (C) 2013 Lucas Stach <l.stach@pengutronix.de>
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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 <asm/armlinux.h>
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#include <asm/io.h>
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#include <bootsource.h>
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#include <common.h>
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#include <environment.h>
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#include <envfs.h>
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#include <gpio.h>
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#include <init.h>
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#include <mach/bbu.h>
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#include <mach/generic.h>
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#include <mach/imx6-regs.h>
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#include <mach/imx6.h>
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#include <mfd/imx6q-iomuxc-gpr.h>
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#include <sizes.h>
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#include <linux/phy.h>
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static int ar8035_phy_fixup(struct phy_device *dev)
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{
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u16 val;
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/* Ar803x phy SmartEEE feature cause link status generates glitch,
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* which cause ethernet link down/up issue, so disable SmartEEE
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*/
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phy_write(dev, 0xd, 0x3);
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phy_write(dev, 0xe, 0x805d);
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phy_write(dev, 0xd, 0x4003);
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val = phy_read(dev, 0xe);
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phy_write(dev, 0xe, val & ~(1 << 8));
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/* To enable AR8031 ouput a 125MHz clk from CLK_25M */
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phy_write(dev, 0xd, 0x7);
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phy_write(dev, 0xe, 0x8016);
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phy_write(dev, 0xd, 0x4007);
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val = phy_read(dev, 0xe);
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val &= 0xffe3;
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val |= 0x18;
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phy_write(dev, 0xe, val);
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/* introduce tx clock delay */
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phy_write(dev, 0x1d, 0x5);
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val = phy_read(dev, 0x1e);
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val |= 0x0100;
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phy_write(dev, 0x1e, val);
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return 0;
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}
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static int hummingboard_device_init(void)
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{
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if (!of_machine_is_compatible("solidrun,hummingboard"))
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return 0;
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phy_register_fixup_for_uid(0x004dd072, 0xffffffef, ar8035_phy_fixup);
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/* enable USB VBUS */
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gpio_direction_output(IMX_GPIO_NR(3, 22), 1);
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gpio_direction_output(IMX_GPIO_NR(1, 0), 1);
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return 0;
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}
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device_initcall(hummingboard_device_init);
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static int hummingboard_late_init(void)
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{
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if (!of_machine_is_compatible("solidrun,hummingboard"))
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return 0;
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imx6_bbu_internal_mmc_register_handler("sdcard", "/dev/mmc1.barebox",
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BBU_HANDLER_FLAG_DEFAULT);
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return 0;
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}
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late_initcall(hummingboard_late_init);
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static int hummingboard_lwl_init(void)
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{
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if (!of_machine_is_compatible("solidrun,hummingboard"))
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return 0;
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barebox_set_hostname("hummingboard");
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imx6_init_lowlevel();
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return 0;
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}
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postcore_initcall(hummingboard_lwl_init);
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