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 <asm/system_misc.h>
  19 #include <asm/mach/arch.h>
  20 #include <mach/orion5x.h>
  21 #include <plat/irq.h>
  22 #include "common.h"
  23
  24 static struct of_dev_auxdata orion5x_auxdata_lookup[] __initdata = {
  25         OF_DEV_AUXDATA("marvell,orion-spi", 0xf1010600, "orion_spi.0", NULL),
  26         OF_DEV_AUXDATA("marvell,mv64xxx-i2c", 0xf1011000, "mv64xxx_i2c.0",
  27                        NULL),
  28         OF_DEV_AUXDATA("marvell,orion-wdt", 0xf1020300, "orion_wdt", NULL),
  29         OF_DEV_AUXDATA("marvell,orion-sata", 0xf1080000, "sata_mv.0", NULL),
  30         OF_DEV_AUXDATA("marvell,orion-crypto", 0xf1090000, "mv_crypto", NULL),
  31         {},
  32 };
  33
  34 static void __init orion5x_dt_init(void)
  35 {
  36         char *dev_name;
  37         u32 dev, rev;
  38
  39         orion5x_id(&dev, &rev, &dev_name);
  40         printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, orion5x_tclk);
  41
  42         /*
  43          * Setup Orion address map
  44          */
  45         orion5x_setup_wins();
  46
  47         /* Setup root of clk tree */
  48         clk_init();
  49
  50         /*
  51          * Don't issue "Wait for Interrupt" instruction if we are
  52          * running on D0 5281 silicon.
  53          */
  54         if (dev == MV88F5281_DEV_ID && rev == MV88F5281_REV_D0) {
  55                 printk(KERN_INFO "Orion: Applying 5281 D0 WFI workaround.\n");
  56                 cpu_idle_poll_ctrl(true);
  57         }
  58
  59         if (of_machine_is_compatible("lacie,ethernet-disk-mini-v2"))
  60                 edmini_v2_init();
  61
  62         of_platform_populate(NULL, of_default_bus_match_table,
  63                              orion5x_auxdata_lookup, NULL);
  64 }
  65
  66 static const char *orion5x_dt_compat[] = {
  67         "marvell,orion5x",
  68         NULL,
  69 };
  70
  71 DT_MACHINE_START(ORION5X_DT, "Marvell Orion5x (Flattened Device Tree)")
  72         /* Maintainer: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> */
  73         .map_io         = orion5x_map_io,
  74         .init_early     = orion5x_init_early,
  75         .init_irq       = orion_dt_init_irq,
  76         .init_time      = orion5x_timer_init,
  77         .init_machine   = orion5x_dt_init,
  78         .restart        = orion5x_restart,
  79         .dt_compat      = orion5x_dt_compat,
  80 MACHINE_END