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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/arch/arm/mach-imx/mach-imx6sl.c
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// SPDX-License-Identifier: GPL-2.0-only

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/*

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 * Copyright 2013 Freescale Semiconductor, Inc.

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 */

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#include <linux/irqchip.h>

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#include <linux/of_platform.h>

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#include <linux/mfd/syscon.h>

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#include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>

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#include <linux/regmap.h>

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#include <asm/mach/arch.h>

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#include <asm/mach/map.h>

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#include "common.h"

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#include "cpuidle.h"

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#include "hardware.h"

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static void __init imx6sl_fec_init(void)

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{

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	struct regmap *gpr;

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	/* set FEC clock from internal PLL clock source */

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	gpr = syscon_regmap_lookup_by_compatible("fsl,imx6sl-iomuxc-gpr");

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	if (!IS_ERR(gpr)) {

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		regmap_update_bits(gpr, IOMUXC_GPR1,

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			IMX6SL_GPR1_FEC_CLOCK_MUX2_SEL_MASK, 0);

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		regmap_update_bits(gpr, IOMUXC_GPR1,

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			IMX6SL_GPR1_FEC_CLOCK_MUX1_SEL_MASK, 0);

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	} else {

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		pr_err("failed to find fsl,imx6sl-iomux-gpr regmap\n");

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	}

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}

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static void __init imx6sl_init_late(void)

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{

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	/* imx6sl reuses imx6q cpufreq driver */

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	if (IS_ENABLED(CONFIG_ARM_IMX6Q_CPUFREQ))

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		platform_device_register_simple("imx6q-cpufreq", -1, NULL, 0);

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	if (IS_ENABLED(CONFIG_SOC_IMX6SL) && cpu_is_imx6sl())

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		imx6sl_cpuidle_init();

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	else if (IS_ENABLED(CONFIG_SOC_IMX6SLL))

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		imx6sx_cpuidle_init();

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}

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static void __init imx6sl_init_machine(void)

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{

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	of_platform_default_populate(NULL, NULL, NULL);

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	if (cpu_is_imx6sl())

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		imx6sl_fec_init();

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	imx_anatop_init();

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	imx6sl_pm_init();

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}

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static void __init imx6sl_init_irq(void)

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{

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	imx_gpc_check_dt();

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	imx_init_revision_from_anatop();

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	imx_init_l2cache();

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	imx_src_init();

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	irqchip_init();

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	if (cpu_is_imx6sl())

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		imx6_pm_ccm_init("fsl,imx6sl-ccm");

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	else

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		imx6_pm_ccm_init("fsl,imx6sll-ccm");

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}

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static const char * const imx6sl_dt_compat[] __initconst = {

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	"fsl,imx6sl",

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	"fsl,imx6sll",

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	NULL,

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};

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DT_MACHINE_START(IMX6SL, "Freescale i.MX6 SoloLite (Device Tree)")

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	.l2c_aux_val 	= 0,

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	.l2c_aux_mask	= ~0,

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	.init_irq	= imx6sl_init_irq,

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	.init_machine	= imx6sl_init_machine,

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	.init_late      = imx6sl_init_late,

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	.dt_compat	= imx6sl_dt_compat,

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MACHINE_END

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