cregit-Linux how code gets into the kernel

Release 4.11 arch/arm/mach-clps711x/board-dt.c

/*
 *  Author: Alexander Shiyan <shc_work@mail.ru>, 2016
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */

#include <linux/io.h>
#include <linux/of_fdt.h>
#include <linux/platform_device.h>
#include <linux/random.h>
#include <linux/sizes.h>

#include <linux/mfd/syscon/clps711x.h>

#include <asm/system_info.h>
#include <asm/system_misc.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>


#define CLPS711X_VIRT_BASE	IOMEM(0xfeff4000)

#define CLPS711X_PHYS_BASE	(0x80000000)

# define SYSFLG1		(0x0140)

# define HALT			(0x0800)

# define UNIQID			(0x2440)

# define RANDID0		(0x2700)

# define RANDID1		(0x2704)

# define RANDID2		(0x2708)

# define RANDID3		(0x270c)


static struct map_desc clps711x_io_desc __initdata = {
	.virtual	= (unsigned long)CLPS711X_VIRT_BASE,
	.pfn		= __phys_to_pfn(CLPS711X_PHYS_BASE),
	.length		= 48 * SZ_1K,
	.type		= MT_DEVICE,
};


static void __init clps711x_map_io(void) { iotable_init(&clps711x_io_desc, 1); }

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Alexander Shiyan17100.00%1100.00%
Total17100.00%1100.00%

static const struct resource clps711x_cpuidle_res = DEFINE_RES_MEM(CLPS711X_PHYS_BASE + HALT, SZ_128);
static void __init clps711x_init(void) { u32 id[5]; id[0] = readl(CLPS711X_VIRT_BASE + UNIQID); id[1] = readl(CLPS711X_VIRT_BASE + RANDID0); id[2] = readl(CLPS711X_VIRT_BASE + RANDID1); id[3] = readl(CLPS711X_VIRT_BASE + RANDID2); id[4] = readl(CLPS711X_VIRT_BASE + RANDID3); system_rev = SYSFLG1_VERID(readl(CLPS711X_VIRT_BASE + SYSFLG1)); add_device_randomness(id, sizeof(id)); system_serial_low = id[0]; platform_device_register_simple("clps711x-cpuidle", PLATFORM_DEVID_NONE, &clps711x_cpuidle_res, 1); }

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PersonTokensPropCommitsCommitProp
Alexander Shiyan116100.00%1100.00%
Total116100.00%1100.00%


static void clps711x_restart(enum reboot_mode mode, const char *cmd) { soft_restart(0); }

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Alexander Shiyan20100.00%1100.00%
Total20100.00%1100.00%

static const char *clps711x_compat[] __initconst = { "cirrus,ep7209", NULL }; DT_MACHINE_START(CLPS711X_DT, "Cirrus Logic CLPS711X (Device Tree Support)") .dt_compat = clps711x_compat, .map_io = clps711x_map_io, .init_late = clps711x_init, .restart = clps711x_restart, MACHINE_END

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Alexander Shiyan313100.00%1100.00%
Total313100.00%1100.00%
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