arch/powerpc/platforms/86xx/sbc8641d.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * SBC8641D board specific routines
   4  *
   5  * Copyright 2008 Wind River Systems Inc.
   6  *
   7  * By Paul Gortmaker (see MAINTAINERS for contact information)
   8  *
   9  * Based largely on the 8641 HPCN support by Freescale Semiconductor Inc.
  10  */
  11
  12 #include <linux/stddef.h>
  13 #include <linux/kernel.h>
  14 #include <linux/pci.h>
  15 #include <linux/kdev_t.h>
  16 #include <linux/delay.h>
  17 #include <linux/seq_file.h>
  18 #include <linux/of_platform.h>
  19
  20 #include <asm/time.h>
  21 #include <asm/machdep.h>
  22 #include <asm/pci-bridge.h>
  23 #include <asm/prom.h>
  24 #include <mm/mmu_decl.h>
  25 #include <asm/udbg.h>
  26
  27 #include <asm/mpic.h>
  28
  29 #include <sysdev/fsl_pci.h>
  30 #include <sysdev/fsl_soc.h>
  31
  32 #include "mpc86xx.h"
  33
  34 static void __init
  35 sbc8641_setup_arch(void)
  36 {
  37         if (ppc_md.progress)
  38                 ppc_md.progress("sbc8641_setup_arch()", 0);
  39
  40         printk("SBC8641 board from Wind River\n");
  41
  42 #ifdef CONFIG_SMP
  43         mpc86xx_smp_init();
  44 #endif
  45
  46         fsl_pci_assign_primary();
  47 }
  48
  49
  50 static void
  51 sbc8641_show_cpuinfo(struct seq_file *m)
  52 {
  53         uint svid = mfspr(SPRN_SVR);
  54
  55         seq_printf(m, "Vendor\t\t: Wind River Systems\n");
  56
  57         seq_printf(m, "SVR\t\t: 0x%x\n", svid);
  58 }
  59
  60
  61 /*
  62  * Called very early, device-tree isn't unflattened
  63  */
  64 static int __init sbc8641_probe(void)
  65 {
  66         if (of_machine_is_compatible("wind,sbc8641"))
  67                 return 1;       /* Looks good */
  68
  69         return 0;
  70 }
  71
  72 machine_arch_initcall(sbc8641, mpc86xx_common_publish_devices);
  73
  74 define_machine(sbc8641) {
  75         .name                   = "SBC8641D",
  76         .probe                  = sbc8641_probe,
  77         .setup_arch             = sbc8641_setup_arch,
  78         .init_IRQ               = mpc86xx_init_irq,
  79         .show_cpuinfo           = sbc8641_show_cpuinfo,
  80         .get_irq                = mpic_get_irq,
  81         .time_init              = mpc86xx_time_init,
  82         .calibrate_decr         = generic_calibrate_decr,
  83         .progress               = udbg_progress,
  84 #ifdef CONFIG_PCI
  85         .pcibios_fixup_bus      = fsl_pcibios_fixup_bus,
  86 #endif
  87 };