1/*
2 * Copyright (C) 2015 Freescale Semiconductor, Inc.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#include <linux/irqchip.h>
9#include <linux/mfd/syscon.h>
10#include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
11#include <linux/micrel_phy.h>
12#include <linux/of_platform.h>
13#include <linux/phy.h>
14#include <linux/regmap.h>
15#include <asm/mach/arch.h>
16#include <asm/mach/map.h>
17
18#include "common.h"
19
20static void __init imx6ul_enet_clk_init(void)
21{
22	struct regmap *gpr;
23
24	gpr = syscon_regmap_lookup_by_compatible("fsl,imx6ul-iomuxc-gpr");
25	if (!IS_ERR(gpr))
26		regmap_update_bits(gpr, IOMUXC_GPR1, IMX6UL_GPR1_ENET_CLK_DIR,
27				   IMX6UL_GPR1_ENET_CLK_OUTPUT);
28	else
29		pr_err("failed to find fsl,imx6ul-iomux-gpr regmap\n");
30
31}
32
33static int ksz8081_phy_fixup(struct phy_device *dev)
34{
35	if (dev && dev->interface == PHY_INTERFACE_MODE_MII) {
36		phy_write(dev, 0x1f, 0x8110);
37		phy_write(dev, 0x16, 0x201);
38	} else if (dev && dev->interface == PHY_INTERFACE_MODE_RMII) {
39		phy_write(dev, 0x1f, 0x8190);
40		phy_write(dev, 0x16, 0x202);
41	}
42
43	return 0;
44}
45
46static void __init imx6ul_enet_phy_init(void)
47{
48	if (IS_BUILTIN(CONFIG_PHYLIB))
49		phy_register_fixup_for_uid(PHY_ID_KSZ8081, 0xffffffff,
50					   ksz8081_phy_fixup);
51}
52
53static inline void imx6ul_enet_init(void)
54{
55	imx6ul_enet_clk_init();
56	imx6ul_enet_phy_init();
57}
58
59static void __init imx6ul_init_machine(void)
60{
61	struct device *parent;
62
63	parent = imx_soc_device_init();
64	if (parent == NULL)
65		pr_warn("failed to initialize soc device\n");
66
67	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
68	imx6ul_enet_init();
69	imx_anatop_init();
70	imx6ul_pm_init();
71}
72
73static void __init imx6ul_init_irq(void)
74{
75	imx_init_revision_from_anatop();
76	imx_src_init();
77	irqchip_init();
78	imx6_pm_ccm_init("fsl,imx6ul-ccm");
79}
80
81static void __init imx6ul_init_late(void)
82{
83	if (IS_ENABLED(CONFIG_ARM_IMX6Q_CPUFREQ))
84		platform_device_register_simple("imx6q-cpufreq", -1, NULL, 0);
85}
86
87static const char *imx6ul_dt_compat[] __initconst = {
88	"fsl,imx6ul",
89	NULL,
90};
91
92DT_MACHINE_START(IMX6UL, "Freescale i.MX6 Ultralite (Device Tree)")
93	.init_irq	= imx6ul_init_irq,
94	.init_machine	= imx6ul_init_machine,
95	.init_late	= imx6ul_init_late,
96	.dt_compat	= imx6ul_dt_compat,
97MACHINE_END
98