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board-harmony-pcie.c

/*
 * arch/arm/mach-tegra/board-harmony-pcie.c
 *
 * Copyright (C) 2010 CompuLab, Ltd.
 * Mike Rapoport <mike@compulab.co.il>
 *
 * This software is licensed under the terms of the GNU General Public
 * License version 2, as published by the Free Software Foundation, and
 * may be copied, distributed, and modified under those terms.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */

#include <linux/kernel.h>
#include <linux/gpio.h>
#include <linux/err.h>
#include <linux/regulator/consumer.h>

#include <asm/mach-types.h>

#include <mach/pinmux.h>
#include "board.h"

#ifdef CONFIG_TEGRA_PCI

static int __init harmony_pcie_init(void)
{
      int err;

      if (!machine_is_harmony())
            return 0;

      tegra_pinmux_set_tristate(TEGRA_PINGROUP_GPV, TEGRA_TRI_NORMAL);
      tegra_pinmux_set_tristate(TEGRA_PINGROUP_SLXA, TEGRA_TRI_NORMAL);
      tegra_pinmux_set_tristate(TEGRA_PINGROUP_SLXK, TEGRA_TRI_NORMAL);

      err = tegra_pcie_init(true, true);
      if (err)
            goto err_pcie;

      return 0;

err_pcie:
      tegra_pinmux_set_tristate(TEGRA_PINGROUP_GPV, TEGRA_TRI_TRISTATE);
      tegra_pinmux_set_tristate(TEGRA_PINGROUP_SLXA, TEGRA_TRI_TRISTATE);
      tegra_pinmux_set_tristate(TEGRA_PINGROUP_SLXK, TEGRA_TRI_TRISTATE);

      return err;
}

subsys_initcall(harmony_pcie_init);

#endif

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