arch/arm/mach-orion5x/board-dt.c

   1 /*
   2  * Copyright 2012 (C), Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
   3  *
   4  * arch/arm/mach-orion5x/board-dt.c
   5  *
   6  * Flattened Device Tree board initialization
   7  *
   8  * This file is licensed under the terms of the GNU General Public
   9  * License version 2.  This program is licensed "as is" without any
  10  * warranty of any kind, whether express or implied.
  11  */
  12
  13 #include <linux/kernel.h>
  14 #include <linux/init.h>
  15 #include <linux/of.h>
  16 #include <linux/of_platform.h>
  17 #include <linux/cpu.h>
  18 #include <linux/mbus.h>
  19 #include <linux/clocksource.h>
  20 #include <asm/system_misc.h>
  21 #include <asm/mach/arch.h>
  22 #include <asm/mach/map.h>
  23 #include <plat/irq.h>
  24 #include <plat/time.h>
  25 #include "orion5x.h"
  26 #include "bridge-regs.h"
  27 #include "common.h"
  28
  29 static struct of_dev_auxdata orion5x_auxdata_lookup[] __initdata = {
  30         OF_DEV_AUXDATA("marvell,orion-spi", 0xf1010600, "orion_spi.0", NULL),
  31         OF_DEV_AUXDATA("marvell,mv64xxx-i2c", 0xf1011000, "mv64xxx_i2c.0",
  32                        NULL),
  33         OF_DEV_AUXDATA("marvell,orion-wdt", 0xf1020300, "orion_wdt", NULL),
  34         OF_DEV_AUXDATA("marvell,orion-sata", 0xf1080000, "sata_mv.0", NULL),
  35         OF_DEV_AUXDATA("marvell,orion-crypto", 0xf1090000, "mv_crypto", NULL),
  36         {},
  37 };
  38
  39 static void __init orion5x_dt_init(void)
  40 {
  41         char *dev_name;
  42         u32 dev, rev;
  43
  44         orion5x_id(&dev, &rev, &dev_name);
  45         printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, orion5x_tclk);
  46
  47         BUG_ON(mvebu_mbus_dt_init(false));
  48
  49         /*
  50          * Setup Orion address map
  51          */
  52         orion5x_setup_wins();
  53
  54         /*
  55          * Don't issue "Wait for Interrupt" instruction if we are
  56          * running on D0 5281 silicon.
  57          */
  58         if (dev == MV88F5281_DEV_ID && rev == MV88F5281_REV_D0) {
  59                 printk(KERN_INFO "Orion: Applying 5281 D0 WFI workaround.\n");
  60                 cpu_idle_poll_ctrl(true);
  61         }
  62
  63         if (of_machine_is_compatible("maxtor,shared-storage-2"))
  64                 mss2_init();
  65
  66         of_platform_populate(NULL, of_default_bus_match_table,
  67                              orion5x_auxdata_lookup, NULL);
  68 }
  69
  70 static const char *orion5x_dt_compat[] = {
  71         "marvell,orion5x",
  72         NULL,
  73 };
  74
  75 DT_MACHINE_START(ORION5X_DT, "Marvell Orion5x (Flattened Device Tree)")
  76         /* Maintainer: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> */
  77         .map_io         = orion5x_map_io,
  78         .init_machine   = orion5x_dt_init,
  79         .restart        = orion5x_restart,
  80         .dt_compat      = orion5x_dt_compat,
  81 MACHINE_END