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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2013 Lucas Stach <l.stach@pengutronix.de>
* Copyright (C) 2014 Eric Bénard <eric@eukrea.com>
* Copyright (C) 2019 Ahmad Fatoum <a.fatoum@pengutronix.de>
*/
#include <common.h>
#include <init.h>
#include <envfs.h>
#include <mach/bbu.h>
#include <linux/phy.h>
static int ar8035_phy_fixup(struct phy_device *dev)
{
u16 val;
/* Ar803x phy SmartEEE feature cause link status generates glitch,
* which cause ethernet link down/up issue, so disable SmartEEE
*/
phy_write(dev, 0xd, 0x3);
phy_write(dev, 0xe, 0x805d);
phy_write(dev, 0xd, 0x4003);
val = phy_read(dev, 0xe);
phy_write(dev, 0xe, val & ~(1 << 8));
/* To enable AR8031 ouput a 125MHz clk from CLK_25M */
phy_write(dev, 0xd, 0x7);
phy_write(dev, 0xe, 0x8016);
phy_write(dev, 0xd, 0x4007);
val = phy_read(dev, 0xe);
val &= 0xffe3;
val |= 0x18;
phy_write(dev, 0xe, val);
/* introduce tx clock delay */
phy_write(dev, 0x1d, 0x5);
val = phy_read(dev, 0x1e);
val |= 0x0100;
phy_write(dev, 0x1e, val);
return 0;
}
static int marsboard_device_init(void)
{
if (!of_machine_is_compatible("embest,imx6q-marsboard"))
return 0;
barebox_set_hostname("marsboard");
phy_register_fixup_for_uid(0x004dd072, 0xffffffef, ar8035_phy_fixup);
imx6_bbu_internal_spi_i2c_register_handler("spiflash",
"/dev/m25p0.barebox", BBU_HANDLER_FLAG_DEFAULT);
defaultenv_append_directory(defaultenv_mars);
return 0;
}
device_initcall(marsboard_device_init);
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