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authorOtavio Salvador <otavio@ossystems.com.br>2012-08-05 09:05:29 +0000
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2012-09-01 14:58:17 +0200
commit3a0398d7b916eed6ae80427626f0434690ca0da0 (patch)
tree6df395fa52909a8977f38df93533a1a5a701df9d /arch/arm/cpu/arm926ejs/mx28/iomux.c
parentd369d53d9c438a5d0df157586dcd072de48d9631 (diff)
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mxs: reorganize source directory for easy sharing of code in i.MXS SoCs
Most code can be shared between i.MX23 and i.MX28 as both are from i.MXS family; this source directory structure makes easy to share code among them. Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Acked-by: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'arch/arm/cpu/arm926ejs/mx28/iomux.c')
-rw-r--r--arch/arm/cpu/arm926ejs/mx28/iomux.c109
1 files changed, 0 insertions, 109 deletions
diff --git a/arch/arm/cpu/arm926ejs/mx28/iomux.c b/arch/arm/cpu/arm926ejs/mx28/iomux.c
deleted file mode 100644
index 12916b6..0000000
--- a/arch/arm/cpu/arm926ejs/mx28/iomux.c
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * Copyright 2004-2006,2010 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 <common.h>
-#include <asm/errno.h>
-#include <asm/io.h>
-#include <asm/arch/clock.h>
-#include <asm/arch/iomux.h>
-#include <asm/arch/imx-regs.h>
-
-#if defined(CONFIG_MX23)
-#define DRIVE_OFFSET 0x200
-#define PULL_OFFSET 0x400
-#elif defined(CONFIG_MX28)
-#define DRIVE_OFFSET 0x300
-#define PULL_OFFSET 0x600
-#else
-#error "Please select CONFIG_MX23 or CONFIG_MX28"
-#endif
-
-/*
- * configures a single pad in the iomuxer
- */
-int mxs_iomux_setup_pad(iomux_cfg_t pad)
-{
- u32 reg, ofs, bp, bm;
- void *iomux_base = (void *)MXS_PINCTRL_BASE;
- struct mx28_register_32 *mxs_reg;
-
- /* muxsel */
- ofs = 0x100;
- ofs += PAD_BANK(pad) * 0x20 + PAD_PIN(pad) / 16 * 0x10;
- bp = PAD_PIN(pad) % 16 * 2;
- bm = 0x3 << bp;
- reg = readl(iomux_base + ofs);
- reg &= ~bm;
- reg |= PAD_MUXSEL(pad) << bp;
- writel(reg, iomux_base + ofs);
-
- /* drive */
- ofs = DRIVE_OFFSET;
- ofs += PAD_BANK(pad) * 0x40 + PAD_PIN(pad) / 8 * 0x10;
- /* mA */
- if (PAD_MA_VALID(pad)) {
- bp = PAD_PIN(pad) % 8 * 4;
- bm = 0x3 << bp;
- reg = readl(iomux_base + ofs);
- reg &= ~bm;
- reg |= PAD_MA(pad) << bp;
- writel(reg, iomux_base + ofs);
- }
- /* vol */
- if (PAD_VOL_VALID(pad)) {
- bp = PAD_PIN(pad) % 8 * 4 + 2;
- mxs_reg = (struct mx28_register_32 *)(iomux_base + ofs);
- if (PAD_VOL(pad))
- writel(1 << bp, &mxs_reg->reg_set);
- else
- writel(1 << bp, &mxs_reg->reg_clr);
- }
-
- /* pull */
- if (PAD_PULL_VALID(pad)) {
- ofs = PULL_OFFSET;
- ofs += PAD_BANK(pad) * 0x10;
- bp = PAD_PIN(pad);
- mxs_reg = (struct mx28_register_32 *)(iomux_base + ofs);
- if (PAD_PULL(pad))
- writel(1 << bp, &mxs_reg->reg_set);
- else
- writel(1 << bp, &mxs_reg->reg_clr);
- }
-
- return 0;
-}
-
-int mxs_iomux_setup_multiple_pads(const iomux_cfg_t *pad_list, unsigned count)
-{
- const iomux_cfg_t *p = pad_list;
- int i;
- int ret;
-
- for (i = 0; i < count; i++) {
- ret = mxs_iomux_setup_pad(*p);
- if (ret)
- return ret;
- p++;
- }
-
- return 0;
-}