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author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/arm/mach-imx/iomux-v3.c | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/arm/mach-imx/iomux-v3.c')
-rw-r--r-- | kernel/arch/arm/mach-imx/iomux-v3.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-imx/iomux-v3.c b/kernel/arch/arm/mach-imx/iomux-v3.c new file mode 100644 index 000000000..a53b2e64f --- /dev/null +++ b/kernel/arch/arm/mach-imx/iomux-v3.c @@ -0,0 +1,78 @@ +/* + * Copyright 2004-2006 Freescale Semiconductor, Inc. All Rights Reserved. + * Copyright (C) 2008 by Sascha Hauer <kernel@pengutronix.de> + * Copyright (C) 2009 by Jan Weitzel Phytec Messtechnik GmbH, + * <armlinux@phytec.de> + * + * 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. + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301, USA. + */ +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/string.h> +#include <linux/gpio.h> + +#include <asm/mach/map.h> + +#include "hardware.h" +#include "iomux-v3.h" + +static void __iomem *base; + +/* + * configures a single pad in the iomuxer + */ +int mxc_iomux_v3_setup_pad(iomux_v3_cfg_t pad) +{ + u32 mux_ctrl_ofs = (pad & MUX_CTRL_OFS_MASK) >> MUX_CTRL_OFS_SHIFT; + u32 mux_mode = (pad & MUX_MODE_MASK) >> MUX_MODE_SHIFT; + u32 sel_input_ofs = (pad & MUX_SEL_INPUT_OFS_MASK) >> MUX_SEL_INPUT_OFS_SHIFT; + u32 sel_input = (pad & MUX_SEL_INPUT_MASK) >> MUX_SEL_INPUT_SHIFT; + u32 pad_ctrl_ofs = (pad & MUX_PAD_CTRL_OFS_MASK) >> MUX_PAD_CTRL_OFS_SHIFT; + u32 pad_ctrl = (pad & MUX_PAD_CTRL_MASK) >> MUX_PAD_CTRL_SHIFT; + + if (mux_ctrl_ofs) + __raw_writel(mux_mode, base + mux_ctrl_ofs); + + if (sel_input_ofs) + __raw_writel(sel_input, base + sel_input_ofs); + + if (!(pad_ctrl & NO_PAD_CTRL) && pad_ctrl_ofs) + __raw_writel(pad_ctrl, base + pad_ctrl_ofs); + + return 0; +} + +int mxc_iomux_v3_setup_multiple_pads(const iomux_v3_cfg_t *pad_list, + unsigned count) +{ + const iomux_v3_cfg_t *p = pad_list; + int i; + int ret; + + for (i = 0; i < count; i++) { + ret = mxc_iomux_v3_setup_pad(*p); + if (ret) + return ret; + p++; + } + return 0; +} + +void mxc_iomux_v3_init(void __iomem *iomux_v3_base) +{ + base = iomux_v3_base; +} |