projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| bca6ef1e SH |
1 | /* |
| 2 | * Copyright 2004-2006 Freescale Semiconductor, Inc. All Rights Reserved. | |
| 3 | * Copyright (C) 2008 by Sascha Hauer <kernel@pengutronix.de> | |
| 4 | * Copyright (C) 2009 by Jan Weitzel Phytec Messtechnik GmbH, | |
| 5 | * <armlinux@phytec.de> | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or | |
| 8 | * modify it under the terms of the GNU General Public License | |
| 9 | * as published by the Free Software Foundation; either version 2 | |
| 10 | * of the License, or (at your option) any later version. | |
| 11 | * This program is distributed in the hope that it will be useful, | |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | * GNU General Public License for more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU General Public License | |
| 17 | * along with this program; if not, write to the Free Software | |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, | |
| 19 | * MA 02110-1301, USA. | |
| 20 | */ | |
| 21 | #include <linux/errno.h> | |
| 22 | #include <linux/init.h> | |
| 23 | #include <linux/kernel.h> | |
| 24 | #include <linux/module.h> | |
| 25 | #include <linux/string.h> | |
| 26 | #include <linux/gpio.h> | |
| 27 | ||
| 28 | #include <mach/hardware.h> | |
| 29 | #include <asm/mach/map.h> | |
| 30 | #include <mach/iomux-v3.h> | |
| 31 | ||
| 6134b2cb | 32 | static void __iomem *base; |
| bca6ef1e | 33 | |
| bca6ef1e | 34 | /* |
| 654166d6 | 35 | * setups a single pad in the iomuxer |
| bca6ef1e SH |
36 | */ |
| 37 | int mxc_iomux_v3_setup_pad(struct pad_desc *pad) | |
| 38 | { | |
| bca6ef1e | 39 | if (pad->mux_ctrl_ofs) |
| 6134b2cb | 40 | __raw_writel(pad->mux_mode, base + pad->mux_ctrl_ofs); |
| bca6ef1e SH |
41 | |
| 42 | if (pad->select_input_ofs) | |
| 43 | __raw_writel(pad->select_input, | |
| 6134b2cb | 44 | base + pad->select_input_ofs); |
| bca6ef1e | 45 | |
| 6134b2cb SH |
46 | if (!(pad->pad_ctrl & NO_PAD_CTRL) && pad->pad_ctrl_ofs) |
| 47 | __raw_writel(pad->pad_ctrl, base + pad->pad_ctrl_ofs); | |
| bca6ef1e SH |
48 | return 0; |
| 49 | } | |
| 50 | EXPORT_SYMBOL(mxc_iomux_v3_setup_pad); | |
| 51 | ||
| 52 | int mxc_iomux_v3_setup_multiple_pads(struct pad_desc *pad_list, unsigned count) | |
| 53 | { | |
| 54 | struct pad_desc *p = pad_list; | |
| 55 | int i; | |
| 56 | int ret; | |
| 57 | ||
| 58 | for (i = 0; i < count; i++) { | |
| 59 | ret = mxc_iomux_v3_setup_pad(p); | |
| 60 | if (ret) | |
| 654166d6 | 61 | return ret; |
| bca6ef1e SH |
62 | p++; |
| 63 | } | |
| 64 | return 0; | |
| bca6ef1e SH |
65 | } |
| 66 | EXPORT_SYMBOL(mxc_iomux_v3_setup_multiple_pads); | |
| 67 | ||
| 6134b2cb SH |
68 | void mxc_iomux_v3_init(void __iomem *iomux_v3_base) |
| 69 | { | |
| 70 | base = iomux_v3_base; | |
| 71 | } |