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linux-next/arch/arm/mach-tegra/board-harmony-pcie.c
Mike Rapoport f2a443931e tegra: harmony: enable PCI Express
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
CC: Olof Johansson <olof@lixom.net>
CC: Gary King <GKing@nvidia.com>
Signed-off-by: Colin Cross <ccross@android.com>
2010-10-21 18:13:10 -07:00

58 lines
1.4 KiB
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