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_platform.h>
  15
  16 #include <asm/machdep.h>
  17 #include <asm/udbg.h>
  18 #include <asm/mpic.h>
  19
  20 #include <sysdev/fsl_soc.h>
  21 #include <sysdev/fsl_pci.h>
  22
  23 #include "mpc85xx.h"
  24
  25 void __init c293_pcie_pic_init(void)
  26 {
  27         struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN |
  28           MPIC_SINGLE_DEST_CPU, 0, 256, " OpenPIC  ");
  29
  30         BUG_ON(mpic == NULL);
  31
  32         mpic_init(mpic);
  33 }
  34
  35
  36 /*
  37  * Setup the architecture
  38  */
  39 static void __init c293_pcie_setup_arch(void)
  40 {
  41         if (ppc_md.progress)
  42                 ppc_md.progress("c293_pcie_setup_arch()", 0);
  43
  44         fsl_pci_assign_primary();
  45
  46         printk(KERN_INFO "C293 PCIE board from Freescale Semiconductor\n");
  47 }
  48
  49 machine_arch_initcall(c293_pcie, mpc85xx_common_publish_devices);
  50
  51 /*
  52  * Called very early, device-tree isn't unflattened
  53  */
  54 static int __init c293_pcie_probe(void)
  55 {
  56         unsigned long root = of_get_flat_dt_root();
  57
  58         if (of_flat_dt_is_compatible(root, "fsl,C293PCIE"))
  59                 return 1;
  60         return 0;
  61 }
  62
  63 define_machine(c293_pcie) {
  64         .name                   = "C293 PCIE",
  65         .probe                  = c293_pcie_probe,
  66         .setup_arch             = c293_pcie_setup_arch,
  67         .init_IRQ               = c293_pcie_pic_init,
  68 #ifdef CONFIG_PCI
  69         .pcibios_fixup_bus      = fsl_pcibios_fixup_bus,
  70 #endif
  71         .get_irq                = mpic_get_irq,
  72         .restart                = fsl_rstcr_restart,
  73         .calibrate_decr         = generic_calibrate_decr,
  74         .progress               = udbg_progress,
  75 };