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/*
* Copyright (C) 2013 Hubert Feurstein <h.feurstein@gmail.com>
*
* based on arch/arm/boards/freescale-mx6-sabrelite/board.c
* Copyright (C) 2012 Steffen Trumtrar, Pengutronix
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <common.h>
#include <init.h>
#include <environment.h>
#include <mach/imx6-regs.h>
#include <fec.h>
#include <mach/gpio.h>
#include <asm/armlinux.h>
#include <generated/mach-types.h>
#include <partition.h>
#include <linux/phy.h>
#include <asm/io.h>
#include <asm/mmu.h>
#include <mach/generic.h>
#include <sizes.h>
#include <net.h>
#include <mach/imx6.h>
#include <mach/devices-imx6.h>
#include <mach/iomux-mx6.h>
#include <mach/gpio.h>
#include <spi/spi.h>
#include <mach/spi.h>
#include <mach/usb.h>
#define PHY_ID_AR8031 0x004dd074
#define AR_PHY_ID_MASK 0xffffffff
static int sabresd_mem_init(void)
{
arm_add_mem_device("ram0", 0x10000000, SZ_1G);
return 0;
}
mem_initcall(sabresd_mem_init);
static int ar8031_phy_fixup(struct phy_device *dev)
{
u16 val;
/* 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 void sabresd_phy_reset(void)
{
/* Reset AR8031 PHY */
gpio_direction_output(IMX_GPIO_NR(1, 25) , 0);
udelay(500);
gpio_set_value(IMX_GPIO_NR(1, 25), 1);
}
static int sabresd_devices_init(void)
{
armlinux_set_bootparams((void *)0x10000100);
armlinux_set_architecture(3980);
devfs_add_partition("disk0", 0, SZ_1M, DEVFS_PARTITION_FIXED, "self0");
devfs_add_partition("disk0", SZ_1M + SZ_1M, SZ_512K, DEVFS_PARTITION_FIXED, "env0");
return 0;
}
device_initcall(sabresd_devices_init);
static int sabresd_coredevices_init(void)
{
sabresd_phy_reset();
phy_register_fixup_for_uid(PHY_ID_AR8031, AR_PHY_ID_MASK,
ar8031_phy_fixup);
return 0;
}
/*
* Do this before the fec initializes but after our
* gpios are available.
*/
fs_initcall(sabresd_coredevices_init);
static int sabresd_core_init(void)
{
imx6_init_lowlevel();
barebox_set_hostname("sabresd");
return 0;
}
core_initcall(sabresd_core_init);
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