Pileus Git - ~andy/linux/blob - arch/arm/mach-kirkwood/board-dt.c

   1 /*
   2  * Copyright 2012 (C), Jason Cooper <jason@lakedaemon.net>
   3  *
   4  * arch/arm/mach-kirkwood/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 <asm/mach/arch.h>
  18 #include <asm/mach/map.h>
  19 #include <mach/bridge-regs.h>
  20 #include "common.h"
  21
  22 static struct of_device_id kirkwood_dt_match_table[] __initdata = {
  23         { .compatible = "simple-bus", },
  24         { }
  25 };
  26
  27 static void __init kirkwood_dt_init(void)
  28 {
  29         pr_info("Kirkwood: %s, TCLK=%d.\n", kirkwood_id(), kirkwood_tclk);
  30
  31         /*
  32          * Disable propagation of mbus errors to the CPU local bus,
  33          * as this causes mbus errors (which can occur for example
  34          * for PCI aborts) to throw CPU aborts, which we're not set
  35          * up to deal with.
  36          */
  37         writel(readl(CPU_CONFIG) & ~CPU_CONFIG_ERROR_PROP, CPU_CONFIG);
  38
  39         kirkwood_setup_cpu_mbus();
  40
  41 #ifdef CONFIG_CACHE_FEROCEON_L2
  42         kirkwood_l2_init();
  43 #endif
  44
  45         /* internal devices that every board has */
  46         kirkwood_wdt_init();
  47         kirkwood_xor0_init();
  48         kirkwood_xor1_init();
  49         kirkwood_crypto_init();
  50
  51 #ifdef CONFIG_KEXEC
  52         kexec_reinit = kirkwood_enable_pcie;
  53 #endif
  54
  55         if (of_machine_is_compatible("globalscale,dreamplug"))
  56                 dreamplug_init();
  57
  58         of_platform_populate(NULL, kirkwood_dt_match_table, NULL, NULL);
  59 }
  60
  61 static const char *kirkwood_dt_board_compat[] = {
  62         "globalscale,dreamplug",
  63         NULL
  64 };
  65
  66 DT_MACHINE_START(KIRKWOOD_DT, "Marvell Kirkwood (Flattened Device Tree)")
  67         /* Maintainer: Jason Cooper <jason@lakedaemon.net> */
  68         .map_io         = kirkwood_map_io,
  69         .init_early     = kirkwood_init_early,
  70         .init_irq       = kirkwood_init_irq,
  71         .timer          = &kirkwood_timer,
  72         .init_machine   = kirkwood_dt_init,
  73         .restart        = kirkwood_restart,
  74         .dt_compat      = kirkwood_dt_board_compat,
  75 MACHINE_END