arch/arm/mach-imx/mach-imx27.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Copyright 2012 Sascha Hauer, Pengutronix
   4  */
   5
   6 #include <linux/init.h>
   7 #include <asm/mach/arch.h>
   8 #include <asm/mach/map.h>
   9
  10 #include "common.h"
  11 #include "hardware.h"
  12 #include "mx27.h"
  13
  14 /* MX27 memory map definition */
  15 static struct map_desc imx27_io_desc[] __initdata = {
  16         /*
  17          * this fixed mapping covers:
  18          * - AIPI1
  19          * - AIPI2
  20          * - AITC
  21          * - ROM Patch
  22          * - and some reserved space
  23          */
  24         imx_map_entry(MX27, AIPI, MT_DEVICE),
  25         /*
  26          * this fixed mapping covers:
  27          * - CSI
  28          * - ATA
  29          */
  30         imx_map_entry(MX27, SAHB1, MT_DEVICE),
  31         /*
  32          * this fixed mapping covers:
  33          * - EMI
  34          */
  35         imx_map_entry(MX27, X_MEMC, MT_DEVICE),
  36 };
  37
  38 /*
  39  * Initialize the memory map. It is called during the
  40  * system startup to create static physical to virtual
  41  * memory map for the IO modules.
  42  */
  43 static void __init mx27_map_io(void)
  44 {
  45         iotable_init(imx27_io_desc, ARRAY_SIZE(imx27_io_desc));
  46 }
  47
  48 static void __init imx27_init_early(void)
  49 {
  50         mxc_set_cpu_type(MXC_CPU_MX27);
  51 }
  52
  53 static const char * const imx27_dt_board_compat[] __initconst = {
  54         "fsl,imx27",
  55         NULL
  56 };
  57
  58 DT_MACHINE_START(IMX27_DT, "Freescale i.MX27 (Device Tree Support)")
  59         .map_io         = mx27_map_io,
  60         .init_early     = imx27_init_early,
  61         .init_late      = imx27_pm_init,
  62         .dt_compat      = imx27_dt_board_compat,
  63 MACHINE_END