1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (C) 2015 Freescale Semiconductor, Inc.
4 */
5#include <linux/irqchip.h>
6#include <linux/mfd/syscon.h>
7#include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
8#include <linux/micrel_phy.h>
9#include <linux/of_platform.h>
10#include <linux/phy.h>
11#include <linux/regmap.h>
12#include <asm/mach/arch.h>
13#include <asm/mach/map.h>
14
15#include "common.h"
16#include "cpuidle.h"
17
18static void __init imx6ul_enet_clk_init(void)
19{
20	struct regmap *gpr;
21
22	gpr = syscon_regmap_lookup_by_compatible("fsl,imx6ul-iomuxc-gpr");
23	if (!IS_ERR(gpr))
24		regmap_update_bits(gpr, IOMUXC_GPR1, IMX6UL_GPR1_ENET_CLK_DIR,
25				   IMX6UL_GPR1_ENET_CLK_OUTPUT);
26	else
27		pr_err("failed to find fsl,imx6ul-iomux-gpr regmap\n");
28}
29
30static int ksz8081_phy_fixup(struct phy_device *dev)
31{
32	if (dev && dev->interface == PHY_INTERFACE_MODE_MII) {
33		phy_write(dev, 0x1f, 0x8110);
34		phy_write(dev, 0x16, 0x201);
35	} else if (dev && dev->interface == PHY_INTERFACE_MODE_RMII) {
36		phy_write(dev, 0x1f, 0x8190);
37		phy_write(dev, 0x16, 0x202);
38	}
39
40	return 0;
41}
42
43static void __init imx6ul_enet_phy_init(void)
44{
45	if (IS_BUILTIN(CONFIG_PHYLIB))
46		phy_register_fixup_for_uid(PHY_ID_KSZ8081, MICREL_PHY_ID_MASK,
47					   ksz8081_phy_fixup);
48}
49
50static inline void imx6ul_enet_init(void)
51{
52	imx6ul_enet_clk_init();
53	imx6ul_enet_phy_init();
54}
55
56static void __init imx6ul_init_machine(void)
57{
58	of_platform_default_populate(NULL, NULL, NULL);
59	imx6ul_enet_init();
60	imx_anatop_init();
61	imx6ul_pm_init();
62}
63
64static void __init imx6ul_init_irq(void)
65{
66	imx_init_revision_from_anatop();
67	imx_src_init();
68	irqchip_init();
69	imx6_pm_ccm_init("fsl,imx6ul-ccm");
70}
71
72static void __init imx6ul_init_late(void)
73{
74	imx6sx_cpuidle_init();
75
76	if (IS_ENABLED(CONFIG_ARM_IMX6Q_CPUFREQ))
77		platform_device_register_simple("imx6q-cpufreq", -1, NULL, 0);
78}
79
80static const char * const imx6ul_dt_compat[] __initconst = {
81	"fsl,imx6ul",
82	"fsl,imx6ull",
83	NULL,
84};
85
86DT_MACHINE_START(IMX6UL, "Freescale i.MX6 Ultralite (Device Tree)")
87	.init_irq	= imx6ul_init_irq,
88	.init_machine	= imx6ul_init_machine,
89	.init_late	= imx6ul_init_late,
90	.dt_compat	= imx6ul_dt_compat,
91MACHINE_END
92