aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/mach-imx/mach-imx6sl.c
blob: ad323385115c0f2a607c55219a2f5ae8e599a814 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
/*
 * Copyright 2013 Freescale Semiconductor, Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 */

#include <linux/irqchip.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/mfd/syscon.h>
#include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
#include <linux/regmap.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>

#include "common.h"
#include "cpuidle.h"

static void __init imx6sl_fec_init(void)
{
	struct regmap *gpr;

	/* set FEC clock from internal PLL clock source */
	gpr = syscon_regmap_lookup_by_compatible("fsl,imx6sl-iomuxc-gpr");
	if (!IS_ERR(gpr)) {
		regmap_update_bits(gpr, IOMUXC_GPR1,
			IMX6SL_GPR1_FEC_CLOCK_MUX2_SEL_MASK, 0);
		regmap_update_bits(gpr, IOMUXC_GPR1,
			IMX6SL_GPR1_FEC_CLOCK_MUX1_SEL_MASK, 0);
	} else {
		pr_err("failed to find fsl,imx6sl-iomux-gpr regmap\n");
	}
}

static void __init imx6sl_init_late(void)
{
	/* imx6sl reuses imx6q cpufreq driver */
	if (IS_ENABLED(CONFIG_ARM_IMX6Q_CPUFREQ))
		platform_device_register_simple("imx6q-cpufreq", -1, NULL, 0);

	imx6sl_cpuidle_init();
}

static void __init imx6sl_init_machine(void)
{
	struct device *parent;

	mxc_arch_reset_init_dt();

	parent = imx_soc_device_init();
	if (parent == NULL)
		pr_warn("failed to initialize soc device\n");

	of_platform_populate(NULL, of_default_bus_match_table, NULL, parent);

	imx6sl_fec_init();
	imx_anatop_init();
	imx6sl_pm_init();
}

static void __init imx6sl_init_irq(void)
{
	imx_init_revision_from_anatop();
	imx_init_l2cache();
	imx_src_init();
	imx_gpc_init();
	irqchip_init();
}

static const char *imx6sl_dt_compat[] __initconst = {
	"fsl,imx6sl",
	NULL,
};

DT_MACHINE_START(IMX6SL, "Freescale i.MX6 SoloLite (Device Tree)")
	.map_io		= debug_ll_io_init,
	.init_irq	= imx6sl_init_irq,
	.init_machine	= imx6sl_init_machine,
	.init_late      = imx6sl_init_late,
	.dt_compat	= imx6sl_dt_compat,
	.restart	= mxc_restart,
MACHINE_END