LXR linux/arch/powerpc/platforms/85xx/socrates.c

   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 * Copyright (c) 2008 Emcraft Systems
   4 * Sergei Poselenov <sposelenov@emcraft.com>
   5 *
   6 * Based on MPC8560 ADS and arch/ppc tqm85xx ports
   7 *
   8 * Maintained by Kumar Gala (see MAINTAINERS for contact information)
   9 *
  10 * Copyright 2008 Freescale Semiconductor Inc.
  11 *
  12 * Copyright (c) 2005-2006 DENX Software Engineering
  13 * Stefan Roese <sr@denx.de>
  14 *
  15 * Based on original work by
  16 *      Kumar Gala <kumar.gala@freescale.com>
  17 *      Copyright 2004 Freescale Semiconductor Inc.
  18 */
  19
  20#include <linux/stddef.h>
  21#include <linux/kernel.h>
  22#include <linux/pci.h>
  23#include <linux/kdev_t.h>
  24#include <linux/delay.h>
  25#include <linux/seq_file.h>
  26#include <linux/of_platform.h>
  27
  28#include <asm/time.h>
  29#include <asm/machdep.h>
  30#include <asm/pci-bridge.h>
  31#include <asm/mpic.h>
  32#include <asm/prom.h>
  33#include <mm/mmu_decl.h>
  34#include <asm/udbg.h>
  35
  36#include <sysdev/fsl_soc.h>
  37#include <sysdev/fsl_pci.h>
  38
  39#include "mpc85xx.h"
  40#include "socrates_fpga_pic.h"
  41
  42static void __init socrates_pic_init(void)
  43{
  44        struct device_node *np;
  45
  46        struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN,
  47                        0, 256, " OpenPIC  ");
  48        BUG_ON(mpic == NULL);
  49        mpic_init(mpic);
  50
  51        np = of_find_compatible_node(NULL, NULL, "abb,socrates-fpga-pic");
  52        if (!np) {
  53                printk(KERN_ERR "Could not find socrates-fpga-pic node\n");
  54                return;
  55        }
  56        socrates_fpga_pic_init(np);
  57        of_node_put(np);
  58}
  59
  60/*
  61 * Setup the architecture
  62 */
  63static void __init socrates_setup_arch(void)
  64{
  65        if (ppc_md.progress)
  66                ppc_md.progress("socrates_setup_arch()", 0);
  67
  68        fsl_pci_assign_primary();
  69}
  70
  71machine_arch_initcall(socrates, mpc85xx_common_publish_devices);
  72
  73/*
  74 * Called very early, device-tree isn't unflattened
  75 */
  76static int __init socrates_probe(void)
  77{
  78        if (of_machine_is_compatible("abb,socrates"))
  79                return 1;
  80
  81        return 0;
  82}
  83
  84define_machine(socrates) {
  85        .name                   = "Socrates",
  86        .probe                  = socrates_probe,
  87        .setup_arch             = socrates_setup_arch,
  88        .init_IRQ               = socrates_pic_init,
  89        .get_irq                = mpic_get_irq,
  90        .calibrate_decr         = generic_calibrate_decr,
  91        .progress               = udbg_progress,
  92};
  93