Quelle  spear1310.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
/*
 * arch/arm/mach-spear13xx/spear1310.c
 *
 * SPEAr1310 machine source file
 *
 * Copyright (C) 2012 ST Microelectronics
 * Viresh Kumar <vireshk@kernel.org>
 */

#define pr_fmt(fmt) "SPEAr1310: " fmt

#include <linux/amba/pl022.h>
#include <linux/pata_arasan_cf_data.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include "generic.h"
#include "spear.h"

/* Base addresses */
#define SPEAR1310_RAS_GRP1_BASE   UL(0xD8000000)
#define VA_SPEAR1310_RAS_GRP1_BASE  UL(0xFA000000)

static void __init spear1310_dt_init(void)
{
 platform_device_register_simple("spear-cpufreq", -1, NULL, 0);
}

static const char * const spear1310_dt_board_compat[] = {
 "st,spear1310",
 "st,spear1310-evb",
 NULL,
};

/*
 * Following will create 16MB static virtual/physical mappings
 * PHYSICAL VIRTUAL
 * 0xD8000000 0xFA000000
 */
static struct map_desc spear1310_io_desc[] __initdata = {
 {
  .virtual = VA_SPEAR1310_RAS_GRP1_BASE,
  .pfn  = __phys_to_pfn(SPEAR1310_RAS_GRP1_BASE),
  .length  = SZ_16M,
  .type  = MT_DEVICE
 },
};

static void __init spear1310_map_io(void)
{
 iotable_init(spear1310_io_desc, ARRAY_SIZE(spear1310_io_desc));
 spear13xx_map_io();
}

DT_MACHINE_START(SPEAR1310_DT, "ST SPEAr1310 SoC with Flattened Device Tree")
 .smp  = smp_ops(spear13xx_smp_ops),
 .map_io  = spear1310_map_io,
 .init_time = spear13xx_timer_init,
 .init_machine = spear1310_dt_init,
 .restart = spear_restart,
 .dt_compat = spear1310_dt_board_compat,
MACHINE_END