release/src-rt-6.x.4708/linux/linux-2.6.36/arch/powerpc/platforms/44x/virtex.c

   1 /*
   2  * Xilinx Virtex 5FXT based board support, derived from
   3  * the Xilinx Virtex (IIpro & 4FX) based board support
   4  *
   5  * Copyright 2007 Secret Lab Technologies Ltd.
   6  * Copyright 2008 Xilinx, Inc.
   7  *
   8  * This file is licensed under the terms of the GNU General Public License
   9  * version 2. This program is licensed "as is" without any warranty of any
  10  * kind, whether express or implied.
  11  */
  12
  13 #include <linux/init.h>
  14 #include <linux/of_platform.h>
  15 #include <asm/machdep.h>
  16 #include <asm/prom.h>
  17 #include <asm/time.h>
  18 #include <asm/xilinx_intc.h>
  19 #include <asm/xilinx_pci.h>
  20 #include <asm/reg.h>
  21 #include <asm/ppc4xx.h>
  22 #include "44x.h"
  23
  24 static struct of_device_id xilinx_of_bus_ids[] __initdata = {
  25         { .compatible = "simple-bus", },
  26         { .compatible = "xlnx,plb-v46-1.00.a", },
  27         { .compatible = "xlnx,plb-v46-1.02.a", },
  28         { .compatible = "xlnx,plb-v34-1.01.a", },
  29         { .compatible = "xlnx,plb-v34-1.02.a", },
  30         { .compatible = "xlnx,opb-v20-1.10.c", },
  31         { .compatible = "xlnx,dcr-v29-1.00.a", },
  32         { .compatible = "xlnx,compound", },
  33         {}
  34 };
  35
  36 static int __init virtex_device_probe(void)
  37 {
  38         of_platform_bus_probe(NULL, xilinx_of_bus_ids, NULL);
  39
  40         return 0;
  41 }
  42 machine_device_initcall(virtex, virtex_device_probe);
  43
  44 static int __init virtex_probe(void)
  45 {
  46         unsigned long root = of_get_flat_dt_root();
  47
  48         if (!of_flat_dt_is_compatible(root, "xlnx,virtex440"))
  49                 return 0;
  50
  51         return 1;
  52 }
  53
  54 define_machine(virtex) {
  55         .name                   = "Xilinx Virtex440",
  56         .probe                  = virtex_probe,
  57         .setup_arch             = xilinx_pci_init,
  58         .init_IRQ               = xilinx_intc_init_tree,
  59         .get_irq                = xilinx_intc_get_irq,
  60         .calibrate_decr         = generic_calibrate_decr,
  61         .restart                = ppc4xx_reset_system,
  62 };