arch/arc/plat-arcfpga/platform.c

   1 /*
   2  * ARC FPGA Platform support code
   3  *
   4  * Copyright (C) 2012 Synopsys, Inc. (www.synopsys.com)
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10
  11 #include <linux/types.h>
  12 #include <linux/init.h>
  13 #include <linux/device.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/io.h>
  16 #include <linux/console.h>
  17 #include <linux/of_platform.h>
  18 #include <asm/setup.h>
  19 #include <asm/clk.h>
  20 #include <asm/mach_desc.h>
  21 #include <plat/memmap.h>
  22 #include <plat/smp.h>
  23 #include <plat/irq.h>
  24
  25 static void __init plat_fpga_early_init(void)
  26 {
  27         pr_info("[plat-arcfpga]: registering early dev resources\n");
  28
  29 #ifdef CONFIG_ISS_SMP_EXTN
  30         iss_model_init_early_smp();
  31 #endif
  32 }
  33
  34 static void __init plat_fpga_populate_dev(void)
  35 {
  36         /*
  37          * Traverses flattened DeviceTree - registering platform devices
  38          * (if any) complete with their resources
  39          */
  40         of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
  41 }
  42
  43 /*----------------------- Machine Descriptions ------------------------------
  44  *
  45  * Machine description is simply a set of platform/board specific callbacks
  46  * This is not directly related to DeviceTree based dynamic device creation,
  47  * however as part of early device tree scan, we also select the right
  48  * callback set, by matching the DT compatible name.
  49  */
  50
  51 static const char *aa4_compat[] __initconst = {
  52         "snps,arc-angel4",
  53         NULL,
  54 };
  55
  56 MACHINE_START(ANGEL4, "angel4")
  57         .dt_compat      = aa4_compat,
  58         .init_early     = plat_fpga_early_init,
  59         .init_machine   = plat_fpga_populate_dev,
  60 #ifdef CONFIG_ISS_SMP_EXTN
  61         .init_smp       = iss_model_init_smp,
  62 #endif
  63 MACHINE_END
  64
  65 static const char *ml509_compat[] __initconst = {
  66         "snps,arc-ml509",
  67         NULL,
  68 };
  69
  70 MACHINE_START(ML509, "ml509")
  71         .dt_compat      = ml509_compat,
  72         .init_early     = plat_fpga_early_init,
  73         .init_machine   = plat_fpga_populate_dev,
  74 #ifdef CONFIG_SMP
  75         .init_smp       = iss_model_init_smp,
  76 #endif
  77 MACHINE_END
  78
  79 static const char *nsimosci_compat[] __initconst = {
  80         "snps,nsimosci",
  81         NULL,
  82 };
  83
  84 MACHINE_START(NSIMOSCI, "nsimosci")
  85         .dt_compat      = nsimosci_compat,
  86         .init_early     = NULL,
  87         .init_machine   = plat_fpga_populate_dev,
  88 MACHINE_END