diff options
| author | Mike Rapoport <mike@compulab.co.il> | 2010-09-27 13:26:34 +0400 |
|---|---|---|
| committer | Colin Cross <ccross@android.com> | 2010-10-22 05:13:10 +0400 |
| commit | f2a443931e6c7616aa023f55ddfdbca8943ab0e9 (patch) | |
| tree | 9593fb1a242cbe879a7743e92cd4727d795c63ef /arch/arm | |
| parent | 77ffc1465cec32489889d6bc9c288b7b0d2ce9fb (diff) | |
| download | linux-f2a443931e6c7616aa023f55ddfdbca8943ab0e9.tar.xz | |
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>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-tegra/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/mach-tegra/board-harmony-pcie.c | 57 |
2 files changed, 58 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile index b4c07e67a1fb..cdbc68e4c0ca 100644 --- a/arch/arm/mach-tegra/Makefile +++ b/arch/arm/mach-tegra/Makefile @@ -18,3 +18,4 @@ obj-$(CONFIG_TEGRA_PCI) += pcie.o obj-${CONFIG_MACH_HARMONY} += board-harmony.o obj-${CONFIG_MACH_HARMONY} += board-harmony-pinmux.o +obj-${CONFIG_MACH_HARMONY} += board-harmony-pcie.o diff --git a/arch/arm/mach-tegra/board-harmony-pcie.c b/arch/arm/mach-tegra/board-harmony-pcie.c new file mode 100644 index 000000000000..f7e7d4514b6a --- /dev/null +++ b/arch/arm/mach-tegra/board-harmony-pcie.c @@ -0,0 +1,57 @@ +/* + * 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 |