LXR linux/arch/powerpc/platforms/85xx/stx

   1/*
   2 * Based on MPC8560 ADS and arch/ppc stx_gp3 ports
   3 *
   4 * Maintained by Kumar Gala (see MAINTAINERS for contact information)
   5 *
   6 * Copyright 2008 Freescale Semiconductor Inc.
   7 *
   8 * Dan Malek <dan@embeddededge.com>
   9 * Copyright 2004 Embedded Edge, LLC
  10 *
  11 * Copied from mpc8560_ads.c
  12 * Copyright 2002, 2003 Motorola Inc.
  13 *
  14 * Ported to 2.6, Matt Porter <mporter@kernel.crashing.org>
  15 * Copyright 2004-2005 MontaVista Software, Inc.
  16 *
  17 * This program is free software; you can redistribute  it and/or modify it
  18 * under  the terms of  the GNU General  Public License as published by the
  19 * Free Software Foundation;  either version 2 of the  License, or (at your
  20 * option) any later version.
  21 */
  22
  23#include <linux/stddef.h>
  24#include <linux/kernel.h>
  25#include <linux/pci.h>
  26#include <linux/kdev_t.h>
  27#include <linux/delay.h>
  28#include <linux/seq_file.h>
  29#include <linux/of_platform.h>
  30
  31#include <asm/time.h>
  32#include <asm/machdep.h>
  33#include <asm/pci-bridge.h>
  34#include <asm/mpic.h>
  35#include <asm/prom.h>
  36#include <mm/mmu_decl.h>
  37#include <asm/udbg.h>
  38
  39#include <sysdev/fsl_soc.h>
  40#include <sysdev/fsl_pci.h>
  41
  42#include "mpc85xx.h"
  43
  44#ifdef CONFIG_CPM2
  45#include <asm/cpm2.h>
  46#endif /* CONFIG_CPM2 */
  47
  48static void __init stx_gp3_pic_init(void)
  49{
  50        struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN,
  51                        0, 256, " OpenPIC  ");
  52        BUG_ON(mpic == NULL);
  53        mpic_init(mpic);
  54
  55        mpc85xx_cpm2_pic_init();
  56}
  57
  58/*
  59 * Setup the architecture
  60 */
  61static void __init stx_gp3_setup_arch(void)
  62{
  63        if (ppc_md.progress)
  64                ppc_md.progress("stx_gp3_setup_arch()", 0);
  65
  66        fsl_pci_assign_primary();
  67
  68#ifdef CONFIG_CPM2
  69        cpm2_reset();
  70#endif
  71}
  72
  73static void stx_gp3_show_cpuinfo(struct seq_file *m)
  74{
  75        uint pvid, svid, phid1;
  76
  77        pvid = mfspr(SPRN_PVR);
  78        svid = mfspr(SPRN_SVR);
  79
  80        seq_printf(m, "Vendor\t\t: RPC Electronics STx\n");
  81        seq_printf(m, "PVR\t\t: 0x%x\n", pvid);
  82        seq_printf(m, "SVR\t\t: 0x%x\n", svid);
  83
  84        /* Display cpu Pll setting */
  85        phid1 = mfspr(SPRN_HID1);
  86        seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f));
  87}
  88
  89machine_arch_initcall(stx_gp3, mpc85xx_common_publish_devices);
  90
  91/*
  92 * Called very early, device-tree isn't unflattened
  93 */
  94static int __init stx_gp3_probe(void)
  95{
  96        unsigned long root = of_get_flat_dt_root();
  97
  98        return of_flat_dt_is_compatible(root, "stx,gp3-8560");
  99}
 100
 101define_machine(stx_gp3) {
 102        .name                   = "STX GP3",
 103        .probe                  = stx_gp3_probe,
 104        .setup_arch             = stx_gp3_setup_arch,
 105        .init_IRQ               = stx_gp3_pic_init,
 106        .show_cpuinfo           = stx_gp3_show_cpuinfo,
 107        .get_irq                = mpic_get_irq,
 108        .restart                = fsl_rstcr_restart,
 109        .calibrate_decr         = generic_calibrate_decr,
 110        .progress               = udbg_progress,
 111};
 112