arch/arm/mach-spear/spear1310.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * arch/arm/mach-spear13xx/spear1310.c
   4  *
   5  * SPEAr1310 machine source file
   6  *
   7  * Copyright (C) 2012 ST Microelectronics
   8  * Viresh Kumar <vireshk@kernel.org>
   9  */
  10
  11 #define pr_fmt(fmt) "SPEAr1310: " fmt
  12
  13 #include <linux/amba/pl022.h>
  14 #include <linux/pata_arasan_cf_data.h>
  15 #include <asm/mach/arch.h>
  16 #include <asm/mach/map.h>
  17 #include "generic.h"
  18 #include "spear.h"
  19
  20 /* Base addresses */
  21 #define SPEAR1310_RAS_GRP1_BASE                 UL(0xD8000000)
  22 #define VA_SPEAR1310_RAS_GRP1_BASE              UL(0xFA000000)
  23
  24 static void __init spear1310_dt_init(void)
  25 {
  26         platform_device_register_simple("spear-cpufreq", -1, NULL, 0);
  27 }
  28
  29 static const char * const spear1310_dt_board_compat[] = {
  30         "st,spear1310",
  31         "st,spear1310-evb",
  32         NULL,
  33 };
  34
  35 /*
  36  * Following will create 16MB static virtual/physical mappings
  37  * PHYSICAL             VIRTUAL
  38  * 0xD8000000           0xFA000000
  39  */
  40 static struct map_desc spear1310_io_desc[] __initdata = {
  41         {
  42                 .virtual        = VA_SPEAR1310_RAS_GRP1_BASE,
  43                 .pfn            = __phys_to_pfn(SPEAR1310_RAS_GRP1_BASE),
  44                 .length         = SZ_16M,
  45                 .type           = MT_DEVICE
  46         },
  47 };
  48
  49 static void __init spear1310_map_io(void)
  50 {
  51         iotable_init(spear1310_io_desc, ARRAY_SIZE(spear1310_io_desc));
  52         spear13xx_map_io();
  53 }
  54
  55 DT_MACHINE_START(SPEAR1310_DT, "ST SPEAr1310 SoC with Flattened Device Tree")
  56         .smp            =       smp_ops(spear13xx_smp_ops),
  57         .map_io         =       spear1310_map_io,
  58         .init_time      =       spear13xx_timer_init,
  59         .init_machine   =       spear1310_dt_init,
  60         .restart        =       spear_restart,
  61         .dt_compat      =       spear1310_dt_board_compat,
  62 MACHINE_END