target/linux/mpc85xx/files/arch/powerpc/platforms/85xx/panda.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2
   3 /*
   4  * OCEDO Panda Board Setup
   5  *
   6  * Copyright (C) 2019 David Bauer <mail@david-bauer.net>
   7  *
   8  * Based on:
   9  *   mpc85xx_rdb.c:
  10  *      MPC85xx RDB Board Setup
  11  *      Copyright 2013 Freescale Semiconductor Inc.
  12  *
  13  * This program is free software; you can redistribute  it and/or modify it
  14  * under  the terms of  the GNU General  Public License as published by the
  15  * Free Software Foundation;  either version 2 of the  License, or (at your
  16  * option) any later version.
  17  */
  18
  19 #include <linux/stddef.h>
  20 #include <linux/kernel.h>
  21 #include <linux/delay.h>
  22 #include <linux/interrupt.h>
  23 #include <linux/of_platform.h>
  24
  25 #include <asm/time.h>
  26 #include <asm/machdep.h>
  27 #include <asm/pci-bridge.h>
  28 #include <mm/mmu_decl.h>
  29 #include <asm/prom.h>
  30 #include <asm/udbg.h>
  31 #include <asm/mpic.h>
  32
  33 #include <sysdev/fsl_soc.h>
  34 #include <sysdev/fsl_pci.h>
  35 #include "smp.h"
  36
  37 #include "mpc85xx.h"
  38
  39 void __init panda_pic_init(void)
  40 {
  41         struct mpic *mpic;
  42
  43         mpic = mpic_alloc(NULL, 0,
  44           MPIC_BIG_ENDIAN |
  45           MPIC_SINGLE_DEST_CPU,
  46           0, 256, " OpenPIC  ");
  47
  48         BUG_ON(mpic == NULL);
  49         mpic_init(mpic);
  50 }
  51
  52 /*
  53  * Setup the architecture
  54  */
  55 static void __init panda_setup_arch(void)
  56 {
  57         if (ppc_md.progress)
  58                 ppc_md.progress("panda_setup_arch()", 0);
  59
  60         mpc85xx_smp_init();
  61
  62         fsl_pci_assign_primary();
  63
  64         pr_info("Panda board from OCEDO\n");
  65 }
  66
  67 machine_arch_initcall(panda, mpc85xx_common_publish_devices);
  68
  69 /*
  70  * Called very early, device-tree isn't unflattened
  71  */
  72 static int __init panda_probe(void)
  73 {
  74         if (of_machine_is_compatible("ocedo,panda"))
  75                 return 1;
  76         return 0;
  77 }
  78
  79 define_machine(panda) {
  80         .name                   = "P1020 RDB",
  81         .probe                  = panda_probe,
  82         .setup_arch             = panda_setup_arch,
  83         .init_IRQ               = panda_pic_init,
  84 #ifdef CONFIG_PCI
  85         .pcibios_fixup_bus      = fsl_pcibios_fixup_bus,
  86         .pcibios_fixup_phb      = fsl_pcibios_fixup_phb,
  87 #endif
  88         .get_irq                = mpic_get_irq,
  89         .calibrate_decr         = generic_calibrate_decr,
  90         .progress               = udbg_progress,
  91 };