stx_gp3.c

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/*
 * Based on MPC8560 ADS and arch/ppc stx_gp3 ports
 *
 * Maintained by Kumar Gala (see MAINTAINERS for contact information)
 *
 * Copyright 2008 Freescale Semiconductor Inc.
 *
 * Dan Malek <[email protected]>
 * Copyright 2004 Embedded Edge, LLC
 *
 * Copied from mpc8560_ads.c
 * Copyright 2002, 2003 Motorola Inc.
 *
 * Ported to 2.6, Matt Porter <[email protected]>
 * Copyright 2004-2005 MontaVista Software, Inc.
 *
 * This program is free software; you can redistribute  it and/or modify it
 * under  the terms of  the GNU General  Public License as published by the
 * Free Software Foundation;  either version 2 of the  License, or (at your
 * option) any later version.
 */

#include <linux/stddef.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/kdev_t.h>
#include <linux/delay.h>
#include <linux/seq_file.h>
#include <linux/of_platform.h>

#include <asm/time.h>
#include <asm/machdep.h>
#include <asm/pci-bridge.h>
#include <asm/mpic.h>
#include <asm/prom.h>
#include <mm/mmu_decl.h>
#include <asm/udbg.h>

#include <sysdev/fsl_soc.h>
#include <sysdev/fsl_pci.h>

#include "mpc85xx.h"

#ifdef CONFIG_CPM2
#include <asm/cpm2.h>
#endif /* CONFIG_CPM2 */

static void __init stx_gp3_pic_init(void)
{
    struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN,
            0, 256, " OpenPIC  ");
    BUG_ON(mpic == NULL);
    mpic_init(mpic);

    mpc85xx_cpm2_pic_init();
}

/*
 * Setup the architecture
 */
static void __init stx_gp3_setup_arch(void)
{
    if (ppc_md.progress)
        ppc_md.progress("stx_gp3_setup_arch()", 0);

    fsl_pci_assign_primary();

#ifdef CONFIG_CPM2
    cpm2_reset();
#endif
}

static void stx_gp3_show_cpuinfo(struct seq_file *m)
{
    uint pvid, svid, phid1;

    pvid = mfspr(SPRN_PVR);
    svid = mfspr(SPRN_SVR);

    seq_printf(m, "Vendor\t\t: RPC Electronics STx\n");
    seq_printf(m, "PVR\t\t: 0x%x\n", pvid);
    seq_printf(m, "SVR\t\t: 0x%x\n", svid);

    /* Display cpu Pll setting */
    phid1 = mfspr(SPRN_HID1);
    seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f));
}

machine_arch_initcall(stx_gp3, mpc85xx_common_publish_devices);

/*
 * Called very early, device-tree isn't unflattened
 */
static int __init stx_gp3_probe(void)
{
    unsigned long root = of_get_flat_dt_root();

    return of_flat_dt_is_compatible(root, "stx,gp3-8560");
}

define_machine(stx_gp3) {
    .name           = "STX GP3",
    .probe          = stx_gp3_probe,
    .setup_arch     = stx_gp3_setup_arch,
    .init_IRQ       = stx_gp3_pic_init,
    .show_cpuinfo       = stx_gp3_show_cpuinfo,
    .get_irq        = mpic_get_irq,
    .restart        = fsl_rstcr_restart,
    .calibrate_decr     = generic_calibrate_decr,
    .progress       = udbg_progress,
};