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// SPDX-License-Identifier: GPL-2.0-or-later
// SPDX-FileCopyrightText: 2012 Steffen Trumtrar, Pengutronix
/*
* based on arch/arm/boards/freescale-mx6-arm2/board.c
*/
#include <common.h>
#include <init.h>
#include <environment.h>
#include <mach/imx6-regs.h>
#include <gpio.h>
#include <mach/bbu.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 <linux/sizes.h>
#include <net.h>
#include <linux/micrel_phy.h>
#include <mach/imx6.h>
#include <mach/devices-imx6.h>
#include <mach/iomux-mx6.h>
#include <spi/spi.h>
#include <mach/spi.h>
#include <mach/usb.h>
static iomux_v3_cfg_t sabrelite_enet_gpio_pads[] = {
/* Ethernet */
MX6Q_PAD_EIM_D23__GPIO_3_23, /* RGMII_nRST */
MX6Q_PAD_RGMII_RXC__GPIO_6_30, /* PHYAD */
MX6Q_PAD_RGMII_RD0__GPIO_6_25, /* MODE0 */
MX6Q_PAD_RGMII_RD1__GPIO_6_27, /* MODE1 */
MX6Q_PAD_RGMII_RD2__GPIO_6_28, /* MODE2 */
MX6Q_PAD_RGMII_RD3__GPIO_6_29, /* MODE3 */
MX6Q_PAD_RGMII_RX_CTL__GPIO_6_24,
};
static int ksz9021rn_phy_fixup(struct phy_device *dev)
{
phy_write(dev, 0x09, 0x0f00);
/* do same as linux kernel */
/* min rx data delay */
phy_write(dev, 0x0b, 0x8105);
phy_write(dev, 0x0c, 0x0000);
/* max rx/tx clock delay, min rx/tx control delay */
phy_write(dev, 0x0b, 0x8104);
phy_write(dev, 0x0c, 0xf0f0);
phy_write(dev, 0x0b, 0x104);
return 0;
}
static struct gpio fec_gpios[] = {
{
.gpio = IMX_GPIO_NR(3, 23),
.flags = GPIOF_OUT_INIT_LOW,
.label = "phy-rst",
}, {
.gpio = IMX_GPIO_NR(6, 30),
.flags = GPIOF_OUT_INIT_HIGH,
.label = "phy-addr2",
}, {
.gpio = IMX_GPIO_NR(1, 23),
.flags = GPIOF_OUT_INIT_LOW,
.label = "phy-led-mode",
}, {
/* MODE strap-in pins: advertise all capabilities */
.gpio = IMX_GPIO_NR(6, 25),
.flags = GPIOF_OUT_INIT_HIGH,
.label = "phy-adv1",
}, {
.gpio = IMX_GPIO_NR(6, 27),
.flags = GPIOF_OUT_INIT_HIGH,
.label = "phy-adv1",
}, {
.gpio = IMX_GPIO_NR(6, 28),
.flags = GPIOF_OUT_INIT_HIGH,
.label = "phy-adv1",
}, {
.gpio = IMX_GPIO_NR(6, 29),
.flags = GPIOF_OUT_INIT_HIGH,
.label = "phy-adv1",
}, {
/* Enable 125 MHz clock output */
.gpio = IMX_GPIO_NR(6, 24),
.flags = GPIOF_OUT_INIT_HIGH,
.label = "phy-125MHz",
},
};
static int sabrelite_ksz9021rn_setup(void)
{
int ret;
if (!of_machine_is_compatible("fsl,imx6q-sabrelite") &&
!of_machine_is_compatible("fsl,imx6dl-sabrelite"))
return 0;
mxc_iomux_v3_setup_multiple_pads(sabrelite_enet_gpio_pads,
ARRAY_SIZE(sabrelite_enet_gpio_pads));
ret = gpio_request_array(fec_gpios, ARRAY_SIZE(fec_gpios));
if (ret) {
pr_err("Failed to request fec gpios: %s\n", strerror(-ret));
return ret;
}
mdelay(10);
/* FEC driver picks up the reset gpio later and releases the phy reset */
gpio_free_array(fec_gpios, ARRAY_SIZE(fec_gpios));
return 0;
}
/*
* Do this before the fec initializes but after our
* gpios are available.
*/
fs_initcall(sabrelite_ksz9021rn_setup);
static void sabrelite_ehci_init(void)
{
/* hub reset */
gpio_direction_output(IMX_GPIO_NR(7, 12), 0);
udelay(2000);
gpio_set_value(IMX_GPIO_NR(7, 12), 1);
}
static int sabrelite_devices_init(void)
{
if (!of_machine_is_compatible("fsl,imx6q-sabrelite") &&
!of_machine_is_compatible("fsl,imx6dl-sabrelite"))
return 0;
sabrelite_ehci_init();
armlinux_set_architecture(3769);
imx6_bbu_internal_spi_i2c_register_handler("spiflash",
"/dev/spinor0.barebox", BBU_HANDLER_FLAG_DEFAULT);
return 0;
}
device_initcall(sabrelite_devices_init);
static int sabrelite_coredevices_init(void)
{
if (!of_machine_is_compatible("fsl,imx6q-sabrelite") &&
!of_machine_is_compatible("fsl,imx6dl-sabrelite"))
return 0;
phy_register_fixup_for_uid(PHY_ID_KSZ9021, MICREL_PHY_ID_MASK,
ksz9021rn_phy_fixup);
barebox_set_hostname("sabrelite");
return 0;
}
coredevice_initcall(sabrelite_coredevices_init);
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