arch/powerpc/platforms/85xx/c293pcie.c

   1 /*
   2  * C293PCIE Board Setup
   3  *
   4  * Copyright 2013 Freescale Semiconductor Inc.
   5  *
   6  * This program is free software; you can redistribute  it and/or modify it
   7  * under  the terms of  the GNU General  Public License as published by the
   8  * Free Software Foundation;  either version 2 of the  License, or (at your
   9  * option) any later version.
  10  */
  11
  12 #include <linux/stddef.h>
  13 #include <linux/kernel.h>
  14 #include <linux/of_fdt.h>
  15 #include <linux/of_platform.h>
  16
  17 #include <asm/machdep.h>
  18 #include <asm/udbg.h>
  19 #include <asm/mpic.h>
  20
  21 #include <sysdev/fsl_soc.h>
  22 #include <sysdev/fsl_pci.h>
  23
  24 #include "mpc85xx.h"
  25
  26 void __init c293_pcie_pic_init(void)
  27 {
  28         struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN |
  29           MPIC_SINGLE_DEST_CPU, 0, 256, " OpenPIC  ");
  30
  31         BUG_ON(mpic == NULL);
  32
  33         mpic_init(mpic);
  34 }
  35
  36
  37 /*
  38  * Setup the architecture
  39  */
  40 static void __init c293_pcie_setup_arch(void)
  41 {
  42         if (ppc_md.progress)
  43                 ppc_md.progress("c293_pcie_setup_arch()", 0);
  44
  45         fsl_pci_assign_primary();
  46
  47         printk(KERN_INFO "C293 PCIE board from Freescale Semiconductor\n");
  48 }
  49
  50 machine_arch_initcall(c293_pcie, mpc85xx_common_publish_devices);
  51
  52 /*
  53  * Called very early, device-tree isn't unflattened
  54  */
  55 static int __init c293_pcie_probe(void)
  56 {
  57         unsigned long root = of_get_flat_dt_root();
  58
  59         if (of_flat_dt_is_compatible(root, "fsl,C293PCIE"))
  60                 return 1;
  61         return 0;
  62 }
  63
  64 define_machine(c293_pcie) {
  65         .name                   = "C293 PCIE",
  66         .probe                  = c293_pcie_probe,
  67         .setup_arch             = c293_pcie_setup_arch,
  68         .init_IRQ               = c293_pcie_pic_init,
  69         .get_irq                = mpic_get_irq,
  70         .restart                = fsl_rstcr_restart,
  71         .calibrate_decr         = generic_calibrate_decr,
  72         .progress               = udbg_progress,
  73 };