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

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * C293PCIE Board Setup
   4  *
   5  * Copyright 2013 Freescale Semiconductor Inc.
   6  */
   7
   8 #include <linux/stddef.h>
   9 #include <linux/kernel.h>
  10 #include <linux/of_fdt.h>
  11 #include <linux/of_platform.h>
  12
  13 #include <asm/machdep.h>
  14 #include <asm/udbg.h>
  15 #include <asm/mpic.h>
  16
  17 #include <sysdev/fsl_soc.h>
  18 #include <sysdev/fsl_pci.h>
  19
  20 #include "mpc85xx.h"
  21
  22 void __init c293_pcie_pic_init(void)
  23 {
  24         struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN |
  25           MPIC_SINGLE_DEST_CPU, 0, 256, " OpenPIC  ");
  26
  27         BUG_ON(mpic == NULL);
  28
  29         mpic_init(mpic);
  30 }
  31
  32
  33 /*
  34  * Setup the architecture
  35  */
  36 static void __init c293_pcie_setup_arch(void)
  37 {
  38         if (ppc_md.progress)
  39                 ppc_md.progress("c293_pcie_setup_arch()", 0);
  40
  41         fsl_pci_assign_primary();
  42
  43         printk(KERN_INFO "C293 PCIE board from Freescale Semiconductor\n");
  44 }
  45
  46 machine_arch_initcall(c293_pcie, mpc85xx_common_publish_devices);
  47
  48 /*
  49  * Called very early, device-tree isn't unflattened
  50  */
  51 static int __init c293_pcie_probe(void)
  52 {
  53         if (of_machine_is_compatible("fsl,C293PCIE"))
  54                 return 1;
  55         return 0;
  56 }
  57
  58 define_machine(c293_pcie) {
  59         .name                   = "C293 PCIE",
  60         .probe                  = c293_pcie_probe,
  61         .setup_arch             = c293_pcie_setup_arch,
  62         .init_IRQ               = c293_pcie_pic_init,
  63         .get_irq                = mpic_get_irq,
  64         .calibrate_decr         = generic_calibrate_decr,
  65         .progress               = udbg_progress,
  66 };