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

   1 /*
   2  * arch/arm/mach-dove/board-dt.c
   3  *
   4  * Marvell Dove 88AP510 System On Chip FDT Board
   5  *
   6  * This file is licensed under the terms of the GNU General Public
   7  * License version 2.  This program is licensed "as is" without any
   8  * warranty of any kind, whether express or implied.
   9  */
  10
  11 #include <linux/init.h>
  12 #include <linux/clk-provider.h>
  13 #include <linux/clk/mvebu.h>
  14 #include <linux/of.h>
  15 #include <linux/of_platform.h>
  16 #include <linux/platform_data/usb-ehci-orion.h>
  17 #include <asm/hardware/cache-tauros2.h>
  18 #include <asm/mach/arch.h>
  19 #include <mach/pm.h>
  20 #include <plat/common.h>
  21 #include <plat/irq.h>
  22 #include "common.h"
  23
  24 /*
  25  * There are still devices that doesn't even know about DT,
  26  * get clock gates here and add a clock lookup.
  27  */
  28 static void __init dove_legacy_clk_init(void)
  29 {
  30         struct device_node *np = of_find_compatible_node(NULL, NULL,
  31                                          "marvell,dove-gating-clock");
  32         struct of_phandle_args clkspec;
  33
  34         clkspec.np = np;
  35         clkspec.args_count = 1;
  36
  37         clkspec.args[0] = CLOCK_GATING_BIT_GBE;
  38         orion_clkdev_add(NULL, "mv643xx_eth_port.0",
  39                          of_clk_get_from_provider(&clkspec));
  40
  41         clkspec.args[0] = CLOCK_GATING_BIT_PCIE0;
  42         orion_clkdev_add("0", "pcie",
  43                          of_clk_get_from_provider(&clkspec));
  44
  45         clkspec.args[0] = CLOCK_GATING_BIT_PCIE1;
  46         orion_clkdev_add("1", "pcie",
  47                          of_clk_get_from_provider(&clkspec));
  48 }
  49
  50 static void __init dove_of_clk_init(void)
  51 {
  52         mvebu_clocks_init();
  53         dove_legacy_clk_init();
  54 }
  55
  56 static struct mv643xx_eth_platform_data dove_dt_ge00_data = {
  57         .phy_addr = MV643XX_ETH_PHY_ADDR_DEFAULT,
  58 };
  59
  60 static void __init dove_dt_init(void)
  61 {
  62         pr_info("Dove 88AP510 SoC\n");
  63
  64 #ifdef CONFIG_CACHE_TAUROS2
  65         tauros2_init(0);
  66 #endif
  67         dove_setup_cpu_mbus();
  68
  69         /* Setup root of clk tree */
  70         dove_of_clk_init();
  71
  72         /* Internal devices not ported to DT yet */
  73         dove_ge00_init(&dove_dt_ge00_data);
  74         dove_pcie_init(1, 1);
  75
  76         of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
  77 }
  78
  79 static const char * const dove_dt_board_compat[] = {
  80         "marvell,dove",
  81         NULL
  82 };
  83
  84 DT_MACHINE_START(DOVE_DT, "Marvell Dove (Flattened Device Tree)")
  85         .map_io         = dove_map_io,
  86         .init_early     = dove_init_early,
  87         .init_irq       = orion_dt_init_irq,
  88         .init_time      = dove_timer_init,
  89         .init_machine   = dove_dt_init,
  90         .restart        = dove_restart,
  91         .dt_compat      = dove_dt_board_compat,
  92 MACHINE_END