2005-11-10 22:26:51 +08:00
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/*
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* linux/arch/arm/mach-omap2/mux.c
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*
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2008-10-06 20:49:16 +08:00
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* OMAP2 and OMAP3 pin multiplexing configurations
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2005-11-10 22:26:51 +08:00
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*
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2008-01-25 09:24:15 +08:00
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* Copyright (C) 2004 - 2008 Texas Instruments Inc.
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* Copyright (C) 2003 - 2008 Nokia Corporation
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2005-11-10 22:26:51 +08:00
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*
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2008-01-25 09:24:15 +08:00
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* Written by Tony Lindgren
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2005-11-10 22:26:51 +08:00
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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2008-09-06 19:10:45 +08:00
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#include <linux/io.h>
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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 16:04:11 +08:00
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#include <linux/slab.h>
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2005-11-10 22:26:51 +08:00
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#include <linux/spinlock.h>
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2009-12-12 08:16:32 +08:00
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#include <linux/list.h>
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2009-12-12 08:16:32 +08:00
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#include <linux/ctype.h>
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#include <linux/debugfs.h>
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#include <linux/seq_file.h>
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#include <linux/uaccess.h>
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2005-11-10 22:26:51 +08:00
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2008-09-06 19:10:45 +08:00
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#include <asm/system.h>
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2009-10-21 00:40:47 +08:00
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#include <plat/control.h>
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#include <plat/mux.h>
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2005-11-10 22:26:51 +08:00
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2009-12-12 08:16:32 +08:00
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#include "mux.h"
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2005-11-10 22:26:51 +08:00
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2009-12-12 08:16:31 +08:00
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#define OMAP_MUX_BASE_OFFSET 0x30 /* Offset from CTRL_BASE */
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#define OMAP_MUX_BASE_SZ 0x5ca
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2009-12-12 08:16:32 +08:00
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struct omap_mux_entry {
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struct omap_mux mux;
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struct list_head node;
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};
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2009-12-12 08:16:32 +08:00
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static unsigned long mux_phys;
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2009-12-12 08:16:31 +08:00
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static void __iomem *mux_base;
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2010-01-20 07:15:24 +08:00
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u16 omap_mux_read(u16 reg)
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2009-12-12 08:16:31 +08:00
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{
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if (cpu_is_omap24xx())
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return __raw_readb(mux_base + reg);
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else
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return __raw_readw(mux_base + reg);
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}
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2010-01-20 07:15:24 +08:00
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void omap_mux_write(u16 val, u16 reg)
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2009-12-12 08:16:31 +08:00
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{
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if (cpu_is_omap24xx())
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__raw_writeb(val, mux_base + reg);
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else
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__raw_writew(val, mux_base + reg);
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}
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2008-01-25 16:42:48 +08:00
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2010-01-20 07:15:24 +08:00
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void omap_mux_write_array(struct omap_board_mux *board_mux)
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{
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while (board_mux->reg_offset != OMAP_MUX_TERMINATOR) {
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omap_mux_write(board_mux->value, board_mux->reg_offset);
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board_mux++;
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}
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}
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2010-02-13 04:26:47 +08:00
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#if defined(CONFIG_ARCH_OMAP2) && defined(CONFIG_OMAP_MUX)
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2009-12-12 08:16:32 +08:00
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static struct omap_mux_cfg arch_mux_cfg;
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2005-11-10 22:26:51 +08:00
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/* NOTE: See mux.h for the enumeration */
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2008-01-25 09:24:15 +08:00
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static struct pin_config __initdata_or_module omap24xx_pins[] = {
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2005-11-10 22:26:51 +08:00
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/*
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* description mux mux pull pull debug
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* offset mode ena type
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*/
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/* 24xx I2C */
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MUX_CFG_24XX("M19_24XX_I2C1_SCL", 0x111, 0, 0, 0, 1)
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MUX_CFG_24XX("L15_24XX_I2C1_SDA", 0x112, 0, 0, 0, 1)
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2006-12-07 09:13:54 +08:00
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MUX_CFG_24XX("J15_24XX_I2C2_SCL", 0x113, 0, 0, 1, 1)
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2005-11-10 22:26:51 +08:00
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MUX_CFG_24XX("H19_24XX_I2C2_SDA", 0x114, 0, 0, 0, 1)
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/* Menelaus interrupt */
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MUX_CFG_24XX("W19_24XX_SYS_NIRQ", 0x12c, 0, 1, 1, 1)
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2006-04-03 00:46:22 +08:00
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/* 24xx clocks */
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MUX_CFG_24XX("W14_24XX_SYS_CLKOUT", 0x137, 0, 1, 1, 1)
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2006-12-07 09:13:54 +08:00
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/* 24xx GPMC chipselects, wait pin monitoring */
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2006-12-08 06:01:29 +08:00
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MUX_CFG_24XX("E2_GPMC_NCS2", 0x08e, 0, 1, 1, 1)
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MUX_CFG_24XX("L2_GPMC_NCS7", 0x093, 0, 1, 1, 1)
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2006-06-27 07:16:25 +08:00
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MUX_CFG_24XX("L3_GPMC_WAIT0", 0x09a, 0, 1, 1, 1)
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MUX_CFG_24XX("N7_GPMC_WAIT1", 0x09b, 0, 1, 1, 1)
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MUX_CFG_24XX("M1_GPMC_WAIT2", 0x09c, 0, 1, 1, 1)
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MUX_CFG_24XX("P1_GPMC_WAIT3", 0x09d, 0, 1, 1, 1)
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2006-04-03 00:46:22 +08:00
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/* 24xx McBSP */
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MUX_CFG_24XX("Y15_24XX_MCBSP2_CLKX", 0x124, 1, 1, 0, 1)
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MUX_CFG_24XX("R14_24XX_MCBSP2_FSX", 0x125, 1, 1, 0, 1)
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MUX_CFG_24XX("W15_24XX_MCBSP2_DR", 0x126, 1, 1, 0, 1)
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MUX_CFG_24XX("V15_24XX_MCBSP2_DX", 0x127, 1, 1, 0, 1)
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2005-11-10 22:26:51 +08:00
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/* 24xx GPIO */
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2006-12-08 06:01:29 +08:00
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MUX_CFG_24XX("M21_242X_GPIO11", 0x0c9, 3, 1, 1, 1)
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MUX_CFG_24XX("P21_242X_GPIO12", 0x0ca, 3, 0, 0, 1)
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MUX_CFG_24XX("AA10_242X_GPIO13", 0x0e5, 3, 0, 0, 1)
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MUX_CFG_24XX("AA6_242X_GPIO14", 0x0e6, 3, 0, 0, 1)
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MUX_CFG_24XX("AA4_242X_GPIO15", 0x0e7, 3, 0, 0, 1)
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MUX_CFG_24XX("Y11_242X_GPIO16", 0x0e8, 3, 0, 0, 1)
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MUX_CFG_24XX("AA12_242X_GPIO17", 0x0e9, 3, 0, 0, 1)
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MUX_CFG_24XX("AA8_242X_GPIO58", 0x0ea, 3, 0, 0, 1)
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2005-11-10 22:26:51 +08:00
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MUX_CFG_24XX("Y20_24XX_GPIO60", 0x12c, 3, 0, 0, 1)
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2006-12-08 06:01:29 +08:00
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MUX_CFG_24XX("W4__24XX_GPIO74", 0x0f2, 3, 0, 0, 1)
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2008-03-20 22:56:26 +08:00
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MUX_CFG_24XX("N15_24XX_GPIO85", 0x103, 3, 0, 0, 1)
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2005-11-10 22:26:51 +08:00
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MUX_CFG_24XX("M15_24XX_GPIO92", 0x10a, 3, 0, 0, 1)
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2008-03-20 22:56:26 +08:00
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MUX_CFG_24XX("P20_24XX_GPIO93", 0x10b, 3, 0, 0, 1)
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MUX_CFG_24XX("P18_24XX_GPIO95", 0x10d, 3, 0, 0, 1)
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MUX_CFG_24XX("M18_24XX_GPIO96", 0x10e, 3, 0, 0, 1)
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MUX_CFG_24XX("L14_24XX_GPIO97", 0x10f, 3, 0, 0, 1)
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2006-12-08 06:01:29 +08:00
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MUX_CFG_24XX("J15_24XX_GPIO99", 0x113, 3, 1, 1, 1)
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2006-04-03 00:46:22 +08:00
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MUX_CFG_24XX("V14_24XX_GPIO117", 0x128, 3, 1, 0, 1)
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2006-12-07 09:13:54 +08:00
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MUX_CFG_24XX("P14_24XX_GPIO125", 0x140, 3, 1, 1, 1)
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2006-04-03 00:46:22 +08:00
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2006-06-27 07:16:20 +08:00
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/* 242x DBG GPIO */
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MUX_CFG_24XX("V4_242X_GPIO49", 0xd3, 3, 0, 0, 1)
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MUX_CFG_24XX("W2_242X_GPIO50", 0xd4, 3, 0, 0, 1)
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MUX_CFG_24XX("U4_242X_GPIO51", 0xd5, 3, 0, 0, 1)
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MUX_CFG_24XX("V3_242X_GPIO52", 0xd6, 3, 0, 0, 1)
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MUX_CFG_24XX("V2_242X_GPIO53", 0xd7, 3, 0, 0, 1)
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MUX_CFG_24XX("V6_242X_GPIO53", 0xcf, 3, 0, 0, 1)
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MUX_CFG_24XX("T4_242X_GPIO54", 0xd8, 3, 0, 0, 1)
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MUX_CFG_24XX("Y4_242X_GPIO54", 0xd0, 3, 0, 0, 1)
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MUX_CFG_24XX("T3_242X_GPIO55", 0xd9, 3, 0, 0, 1)
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MUX_CFG_24XX("U2_242X_GPIO56", 0xda, 3, 0, 0, 1)
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/* 24xx external DMA requests */
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2006-12-08 06:01:29 +08:00
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MUX_CFG_24XX("AA10_242X_DMAREQ0", 0x0e5, 2, 0, 0, 1)
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MUX_CFG_24XX("AA6_242X_DMAREQ1", 0x0e6, 2, 0, 0, 1)
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MUX_CFG_24XX("E4_242X_DMAREQ2", 0x074, 2, 0, 0, 1)
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MUX_CFG_24XX("G4_242X_DMAREQ3", 0x073, 2, 0, 0, 1)
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MUX_CFG_24XX("D3_242X_DMAREQ4", 0x072, 2, 0, 0, 1)
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MUX_CFG_24XX("E3_242X_DMAREQ5", 0x071, 2, 0, 0, 1)
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2006-06-27 07:16:20 +08:00
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2006-12-08 06:01:29 +08:00
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/* UART3 */
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2006-04-03 00:46:22 +08:00
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MUX_CFG_24XX("K15_24XX_UART3_TX", 0x118, 0, 0, 0, 1)
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MUX_CFG_24XX("K14_24XX_UART3_RX", 0x119, 0, 0, 0, 1)
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2006-09-25 17:41:25 +08:00
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/* MMC/SDIO */
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MUX_CFG_24XX("G19_24XX_MMC_CLKO", 0x0f3, 0, 0, 0, 1)
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MUX_CFG_24XX("H18_24XX_MMC_CMD", 0x0f4, 0, 0, 0, 1)
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MUX_CFG_24XX("F20_24XX_MMC_DAT0", 0x0f5, 0, 0, 0, 1)
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MUX_CFG_24XX("H14_24XX_MMC_DAT1", 0x0f6, 0, 0, 0, 1)
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MUX_CFG_24XX("E19_24XX_MMC_DAT2", 0x0f7, 0, 0, 0, 1)
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MUX_CFG_24XX("D19_24XX_MMC_DAT3", 0x0f8, 0, 0, 0, 1)
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MUX_CFG_24XX("F19_24XX_MMC_DAT_DIR0", 0x0f9, 0, 0, 0, 1)
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MUX_CFG_24XX("E20_24XX_MMC_DAT_DIR1", 0x0fa, 0, 0, 0, 1)
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MUX_CFG_24XX("F18_24XX_MMC_DAT_DIR2", 0x0fb, 0, 0, 0, 1)
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MUX_CFG_24XX("E18_24XX_MMC_DAT_DIR3", 0x0fc, 0, 0, 0, 1)
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MUX_CFG_24XX("G18_24XX_MMC_CMD_DIR", 0x0fd, 0, 0, 0, 1)
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MUX_CFG_24XX("H15_24XX_MMC_CLKI", 0x0fe, 0, 0, 0, 1)
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2006-12-07 09:13:54 +08:00
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/* Full speed USB */
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MUX_CFG_24XX("J20_24XX_USB0_PUEN", 0x11d, 0, 0, 0, 1)
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MUX_CFG_24XX("J19_24XX_USB0_VP", 0x11e, 0, 0, 0, 1)
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MUX_CFG_24XX("K20_24XX_USB0_VM", 0x11f, 0, 0, 0, 1)
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MUX_CFG_24XX("J18_24XX_USB0_RCV", 0x120, 0, 0, 0, 1)
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MUX_CFG_24XX("K19_24XX_USB0_TXEN", 0x121, 0, 0, 0, 1)
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MUX_CFG_24XX("J14_24XX_USB0_SE0", 0x122, 0, 0, 0, 1)
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MUX_CFG_24XX("K18_24XX_USB0_DAT", 0x123, 0, 0, 0, 1)
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MUX_CFG_24XX("N14_24XX_USB1_SE0", 0x0ed, 2, 0, 0, 1)
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MUX_CFG_24XX("W12_24XX_USB1_SE0", 0x0dd, 3, 0, 0, 1)
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MUX_CFG_24XX("P15_24XX_USB1_DAT", 0x0ee, 2, 0, 0, 1)
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MUX_CFG_24XX("R13_24XX_USB1_DAT", 0x0e0, 3, 0, 0, 1)
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|
|
MUX_CFG_24XX("W20_24XX_USB1_TXEN", 0x0ec, 2, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("P13_24XX_USB1_TXEN", 0x0df, 3, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("V19_24XX_USB1_RCV", 0x0eb, 2, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("V12_24XX_USB1_RCV", 0x0de, 3, 0, 0, 1)
|
|
|
|
|
|
|
|
|
|
MUX_CFG_24XX("AA10_24XX_USB2_SE0", 0x0e5, 2, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("Y11_24XX_USB2_DAT", 0x0e8, 2, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AA12_24XX_USB2_TXEN", 0x0e9, 2, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AA6_24XX_USB2_RCV", 0x0e6, 2, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AA4_24XX_USB2_TLLSE0", 0x0e7, 2, 0, 0, 1)
|
|
|
|
|
|
2006-04-03 00:46:22 +08:00
|
|
|
/* Keypad GPIO*/
|
|
|
|
|
MUX_CFG_24XX("T19_24XX_KBR0", 0x106, 3, 1, 1, 1)
|
|
|
|
|
MUX_CFG_24XX("R19_24XX_KBR1", 0x107, 3, 1, 1, 1)
|
|
|
|
|
MUX_CFG_24XX("V18_24XX_KBR2", 0x139, 3, 1, 1, 1)
|
|
|
|
|
MUX_CFG_24XX("M21_24XX_KBR3", 0xc9, 3, 1, 1, 1)
|
|
|
|
|
MUX_CFG_24XX("E5__24XX_KBR4", 0x138, 3, 1, 1, 1)
|
|
|
|
|
MUX_CFG_24XX("M18_24XX_KBR5", 0x10e, 3, 1, 1, 1)
|
|
|
|
|
MUX_CFG_24XX("R20_24XX_KBC0", 0x108, 3, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("M14_24XX_KBC1", 0x109, 3, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("H19_24XX_KBC2", 0x114, 3, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("V17_24XX_KBC3", 0x135, 3, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("P21_24XX_KBC4", 0xca, 3, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("L14_24XX_KBC5", 0x10f, 3, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("N19_24XX_KBC6", 0x110, 3, 0, 0, 1)
|
|
|
|
|
|
|
|
|
|
/* 24xx Menelaus Keypad GPIO */
|
|
|
|
|
MUX_CFG_24XX("B3__24XX_KBR5", 0x30, 3, 1, 1, 1)
|
|
|
|
|
MUX_CFG_24XX("AA4_24XX_KBC2", 0xe7, 3, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("B13_24XX_KBC6", 0x110, 3, 0, 0, 1)
|
2005-11-10 22:26:51 +08:00
|
|
|
|
2008-03-20 22:56:26 +08:00
|
|
|
/* 2430 USB */
|
|
|
|
|
MUX_CFG_24XX("AD9_2430_USB0_PUEN", 0x133, 4, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("Y11_2430_USB0_VP", 0x134, 4, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AD7_2430_USB0_VM", 0x135, 4, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AE7_2430_USB0_RCV", 0x136, 4, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AD4_2430_USB0_TXEN", 0x137, 4, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AF9_2430_USB0_SE0", 0x138, 4, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AE6_2430_USB0_DAT", 0x139, 4, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AD24_2430_USB1_SE0", 0x107, 2, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AB24_2430_USB1_RCV", 0x108, 2, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("Y25_2430_USB1_TXEN", 0x109, 2, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AA26_2430_USB1_DAT", 0x10A, 2, 0, 0, 1)
|
|
|
|
|
|
|
|
|
|
/* 2430 HS-USB */
|
|
|
|
|
MUX_CFG_24XX("AD9_2430_USB0HS_DATA3", 0x133, 0, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("Y11_2430_USB0HS_DATA4", 0x134, 0, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AD7_2430_USB0HS_DATA5", 0x135, 0, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AE7_2430_USB0HS_DATA6", 0x136, 0, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AD4_2430_USB0HS_DATA2", 0x137, 0, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AF9_2430_USB0HS_DATA0", 0x138, 0, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AE6_2430_USB0HS_DATA1", 0x139, 0, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AE8_2430_USB0HS_CLK", 0x13A, 0, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AD8_2430_USB0HS_DIR", 0x13B, 0, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AE5_2430_USB0HS_STP", 0x13c, 0, 1, 1, 1)
|
|
|
|
|
MUX_CFG_24XX("AE9_2430_USB0HS_NXT", 0x13D, 0, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AC7_2430_USB0HS_DATA7", 0x13E, 0, 0, 0, 1)
|
|
|
|
|
|
|
|
|
|
/* 2430 McBSP */
|
2008-12-11 09:36:54 +08:00
|
|
|
MUX_CFG_24XX("AD6_2430_MCBSP_CLKS", 0x011E, 0, 0, 0, 1)
|
|
|
|
|
|
|
|
|
|
MUX_CFG_24XX("AB2_2430_MCBSP1_CLKR", 0x011A, 0, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AD5_2430_MCBSP1_FSR", 0x011B, 0, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AA1_2430_MCBSP1_DX", 0x011C, 0, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AF3_2430_MCBSP1_DR", 0x011D, 0, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AB3_2430_MCBSP1_FSX", 0x011F, 0, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("Y9_2430_MCBSP1_CLKX", 0x0120, 0, 0, 0, 1)
|
|
|
|
|
|
2008-03-20 22:56:26 +08:00
|
|
|
MUX_CFG_24XX("AC10_2430_MCBSP2_FSX", 0x012E, 1, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AD16_2430_MCBSP2_CLX", 0x012F, 1, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AE13_2430_MCBSP2_DX", 0x0130, 1, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AD13_2430_MCBSP2_DR", 0x0131, 1, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AC10_2430_MCBSP2_FSX_OFF",0x012E, 0, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AD16_2430_MCBSP2_CLX_OFF",0x012F, 0, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AE13_2430_MCBSP2_DX_OFF", 0x0130, 0, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AD13_2430_MCBSP2_DR_OFF", 0x0131, 0, 0, 0, 1)
|
2008-12-11 09:36:54 +08:00
|
|
|
|
|
|
|
|
MUX_CFG_24XX("AC9_2430_MCBSP3_CLKX", 0x0103, 0, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AE4_2430_MCBSP3_FSX", 0x0104, 0, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AE2_2430_MCBSP3_DR", 0x0105, 0, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AF4_2430_MCBSP3_DX", 0x0106, 0, 0, 0, 1)
|
|
|
|
|
|
|
|
|
|
MUX_CFG_24XX("N3_2430_MCBSP4_CLKX", 0x010B, 1, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AD23_2430_MCBSP4_DR", 0x010C, 1, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AB25_2430_MCBSP4_DX", 0x010D, 1, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AC25_2430_MCBSP4_FSX", 0x010E, 1, 0, 0, 1)
|
|
|
|
|
|
|
|
|
|
MUX_CFG_24XX("AE16_2430_MCBSP5_CLKX", 0x00ED, 1, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AF12_2430_MCBSP5_FSX", 0x00ED, 1, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("K7_2430_MCBSP5_DX", 0x00EF, 1, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("M1_2430_MCBSP5_DR", 0x00F0, 1, 0, 0, 1)
|
|
|
|
|
|
|
|
|
|
/* 2430 MCSPI1 */
|
|
|
|
|
MUX_CFG_24XX("Y18_2430_MCSPI1_CLK", 0x010F, 0, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AD15_2430_MCSPI1_SIMO", 0x0110, 0, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("AE17_2430_MCSPI1_SOMI", 0x0111, 0, 0, 0, 1)
|
|
|
|
|
MUX_CFG_24XX("U1_2430_MCSPI1_CS0", 0x0112, 0, 0, 0, 1)
|
|
|
|
|
|
|
|
|
|
/* Touchscreen GPIO */
|
|
|
|
|
MUX_CFG_24XX("AF19_2430_GPIO_85", 0x0113, 3, 0, 0, 1)
|
|
|
|
|
|
2005-11-10 22:26:51 +08:00
|
|
|
};
|
|
|
|
|
|
2008-01-25 09:24:15 +08:00
|
|
|
#define OMAP24XX_PINS_SZ ARRAY_SIZE(omap24xx_pins)
|
|
|
|
|
|
|
|
|
|
#if defined(CONFIG_OMAP_MUX_DEBUG) || defined(CONFIG_OMAP_MUX_WARNINGS)
|
2009-12-12 08:16:33 +08:00
|
|
|
|
2008-10-06 20:49:16 +08:00
|
|
|
static void __init_or_module omap2_cfg_debug(const struct pin_config *cfg, u16 reg)
|
2008-01-25 09:24:15 +08:00
|
|
|
{
|
|
|
|
|
u16 orig;
|
|
|
|
|
u8 warn = 0, debug = 0;
|
|
|
|
|
|
2009-12-12 08:16:31 +08:00
|
|
|
orig = omap_mux_read(cfg->mux_reg - OMAP_MUX_BASE_OFFSET);
|
2008-01-25 09:24:15 +08:00
|
|
|
|
|
|
|
|
#ifdef CONFIG_OMAP_MUX_DEBUG
|
|
|
|
|
debug = cfg->debug;
|
|
|
|
|
#endif
|
|
|
|
|
warn = (orig != reg);
|
|
|
|
|
if (debug || warn)
|
|
|
|
|
printk(KERN_WARNING
|
2008-07-03 17:24:44 +08:00
|
|
|
"MUX: setup %s (0x%p): 0x%04x -> 0x%04x\n",
|
2008-03-18 16:04:51 +08:00
|
|
|
cfg->name, omap_ctrl_base_get() + cfg->mux_reg,
|
|
|
|
|
orig, reg);
|
2008-01-25 09:24:15 +08:00
|
|
|
}
|
|
|
|
|
#else
|
|
|
|
|
#define omap2_cfg_debug(x, y) do {} while (0)
|
|
|
|
|
#endif
|
|
|
|
|
|
2008-12-11 09:36:54 +08:00
|
|
|
static int __init_or_module omap24xx_cfg_reg(const struct pin_config *cfg)
|
2005-11-10 22:26:51 +08:00
|
|
|
{
|
2008-01-25 09:24:15 +08:00
|
|
|
static DEFINE_SPINLOCK(mux_spin_lock);
|
|
|
|
|
unsigned long flags;
|
2008-01-25 16:42:48 +08:00
|
|
|
u8 reg = 0;
|
|
|
|
|
|
2008-01-25 09:24:15 +08:00
|
|
|
spin_lock_irqsave(&mux_spin_lock, flags);
|
2008-01-25 16:42:48 +08:00
|
|
|
reg |= cfg->mask & 0x7;
|
|
|
|
|
if (cfg->pull_val)
|
2008-10-06 20:49:16 +08:00
|
|
|
reg |= OMAP2_PULL_ENA;
|
2008-01-25 09:24:15 +08:00
|
|
|
if (cfg->pu_pd_val)
|
2008-10-06 20:49:16 +08:00
|
|
|
reg |= OMAP2_PULL_UP;
|
2008-01-25 09:24:15 +08:00
|
|
|
omap2_cfg_debug(cfg, reg);
|
2009-12-12 08:16:31 +08:00
|
|
|
omap_mux_write(reg, cfg->mux_reg - OMAP_MUX_BASE_OFFSET);
|
2008-01-25 09:24:15 +08:00
|
|
|
spin_unlock_irqrestore(&mux_spin_lock, flags);
|
2008-01-25 16:42:48 +08:00
|
|
|
|
2005-11-10 22:26:51 +08:00
|
|
|
return 0;
|
|
|
|
|
}
|
2008-01-25 16:42:48 +08:00
|
|
|
|
|
|
|
|
int __init omap2_mux_init(void)
|
|
|
|
|
{
|
2009-12-12 08:16:31 +08:00
|
|
|
u32 mux_pbase;
|
|
|
|
|
|
|
|
|
|
if (cpu_is_omap2420())
|
|
|
|
|
mux_pbase = OMAP2420_CTRL_BASE + OMAP_MUX_BASE_OFFSET;
|
|
|
|
|
else if (cpu_is_omap2430())
|
|
|
|
|
mux_pbase = OMAP243X_CTRL_BASE + OMAP_MUX_BASE_OFFSET;
|
2009-12-12 08:16:32 +08:00
|
|
|
else
|
|
|
|
|
return -ENODEV;
|
2009-12-12 08:16:31 +08:00
|
|
|
|
|
|
|
|
mux_base = ioremap(mux_pbase, OMAP_MUX_BASE_SZ);
|
|
|
|
|
if (!mux_base) {
|
|
|
|
|
printk(KERN_ERR "mux: Could not ioremap\n");
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
}
|
|
|
|
|
|
2008-01-25 16:42:48 +08:00
|
|
|
if (cpu_is_omap24xx()) {
|
|
|
|
|
arch_mux_cfg.pins = omap24xx_pins;
|
2008-01-25 09:24:15 +08:00
|
|
|
arch_mux_cfg.size = OMAP24XX_PINS_SZ;
|
2008-01-25 16:42:48 +08:00
|
|
|
arch_mux_cfg.cfg_reg = omap24xx_cfg_reg;
|
2009-12-12 08:16:33 +08:00
|
|
|
|
|
|
|
|
return omap_mux_register(&arch_mux_cfg);
|
2008-01-25 16:42:48 +08:00
|
|
|
}
|
|
|
|
|
|
2009-12-12 08:16:33 +08:00
|
|
|
return 0;
|
2008-01-25 16:42:48 +08:00
|
|
|
}
|
2005-11-10 22:26:51 +08:00
|
|
|
|
2009-12-12 08:16:33 +08:00
|
|
|
#else
|
|
|
|
|
int __init omap2_mux_init(void)
|
|
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
2009-12-12 08:16:32 +08:00
|
|
|
#endif /* CONFIG_OMAP_MUX */
|
|
|
|
|
|
|
|
|
|
/*----------------------------------------------------------------------------*/
|
|
|
|
|
|
2010-02-13 04:26:48 +08:00
|
|
|
#ifdef CONFIG_ARCH_OMAP3
|
2009-12-12 08:16:32 +08:00
|
|
|
static LIST_HEAD(muxmodes);
|
|
|
|
|
static DEFINE_MUTEX(muxmode_mutex);
|
|
|
|
|
|
|
|
|
|
#ifdef CONFIG_OMAP_MUX
|
|
|
|
|
|
|
|
|
|
static char *omap_mux_options;
|
|
|
|
|
|
|
|
|
|
int __init omap_mux_init_gpio(int gpio, int val)
|
|
|
|
|
{
|
|
|
|
|
struct omap_mux_entry *e;
|
|
|
|
|
int found = 0;
|
|
|
|
|
|
|
|
|
|
if (!gpio)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
|
|
list_for_each_entry(e, &muxmodes, node) {
|
|
|
|
|
struct omap_mux *m = &e->mux;
|
|
|
|
|
if (gpio == m->gpio) {
|
|
|
|
|
u16 old_mode;
|
|
|
|
|
u16 mux_mode;
|
|
|
|
|
|
|
|
|
|
old_mode = omap_mux_read(m->reg_offset);
|
|
|
|
|
mux_mode = val & ~(OMAP_MUX_NR_MODES - 1);
|
|
|
|
|
mux_mode |= OMAP_MUX_MODE4;
|
|
|
|
|
printk(KERN_DEBUG "mux: Setting signal "
|
|
|
|
|
"%s.gpio%i 0x%04x -> 0x%04x\n",
|
|
|
|
|
m->muxnames[0], gpio, old_mode, mux_mode);
|
|
|
|
|
omap_mux_write(mux_mode, m->reg_offset);
|
|
|
|
|
found++;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (found == 1)
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
if (found > 1) {
|
|
|
|
|
printk(KERN_ERR "mux: Multiple gpio paths for gpio%i\n", gpio);
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
printk(KERN_ERR "mux: Could not set gpio%i\n", gpio);
|
|
|
|
|
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int __init omap_mux_init_signal(char *muxname, int val)
|
|
|
|
|
{
|
|
|
|
|
struct omap_mux_entry *e;
|
|
|
|
|
char *m0_name = NULL, *mode_name = NULL;
|
|
|
|
|
int found = 0;
|
|
|
|
|
|
|
|
|
|
mode_name = strchr(muxname, '.');
|
|
|
|
|
if (mode_name) {
|
|
|
|
|
*mode_name = '\0';
|
|
|
|
|
mode_name++;
|
|
|
|
|
m0_name = muxname;
|
|
|
|
|
} else {
|
|
|
|
|
mode_name = muxname;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
list_for_each_entry(e, &muxmodes, node) {
|
|
|
|
|
struct omap_mux *m = &e->mux;
|
|
|
|
|
char *m0_entry = m->muxnames[0];
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
if (m0_name && strcmp(m0_name, m0_entry))
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < OMAP_MUX_NR_MODES; i++) {
|
|
|
|
|
char *mode_cur = m->muxnames[i];
|
|
|
|
|
|
|
|
|
|
if (!mode_cur)
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
if (!strcmp(mode_name, mode_cur)) {
|
|
|
|
|
u16 old_mode;
|
|
|
|
|
u16 mux_mode;
|
|
|
|
|
|
|
|
|
|
old_mode = omap_mux_read(m->reg_offset);
|
|
|
|
|
mux_mode = val | i;
|
|
|
|
|
printk(KERN_DEBUG "mux: Setting signal "
|
|
|
|
|
"%s.%s 0x%04x -> 0x%04x\n",
|
|
|
|
|
m0_entry, muxname, old_mode, mux_mode);
|
|
|
|
|
omap_mux_write(mux_mode, m->reg_offset);
|
|
|
|
|
found++;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (found == 1)
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
if (found > 1) {
|
|
|
|
|
printk(KERN_ERR "mux: Multiple signal paths (%i) for %s\n",
|
|
|
|
|
found, muxname);
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
printk(KERN_ERR "mux: Could not set signal %s\n", muxname);
|
|
|
|
|
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
}
|
|
|
|
|
|
2009-12-12 08:16:32 +08:00
|
|
|
#ifdef CONFIG_DEBUG_FS
|
|
|
|
|
|
|
|
|
|
#define OMAP_MUX_MAX_NR_FLAGS 10
|
|
|
|
|
#define OMAP_MUX_TEST_FLAG(val, mask) \
|
|
|
|
|
if (((val) & (mask)) == (mask)) { \
|
|
|
|
|
i++; \
|
|
|
|
|
flags[i] = #mask; \
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* REVISIT: Add checking for non-optimal mux settings */
|
|
|
|
|
static inline void omap_mux_decode(struct seq_file *s, u16 val)
|
|
|
|
|
{
|
|
|
|
|
char *flags[OMAP_MUX_MAX_NR_FLAGS];
|
2010-02-02 05:03:42 +08:00
|
|
|
char mode[sizeof("OMAP_MUX_MODE") + 1];
|
2009-12-12 08:16:32 +08:00
|
|
|
int i = -1;
|
|
|
|
|
|
|
|
|
|
sprintf(mode, "OMAP_MUX_MODE%d", val & 0x7);
|
|
|
|
|
i++;
|
|
|
|
|
flags[i] = mode;
|
|
|
|
|
|
|
|
|
|
OMAP_MUX_TEST_FLAG(val, OMAP_PIN_OFF_WAKEUPENABLE);
|
|
|
|
|
if (val & OMAP_OFF_EN) {
|
|
|
|
|
if (!(val & OMAP_OFFOUT_EN)) {
|
|
|
|
|
if (!(val & OMAP_OFF_PULL_UP)) {
|
|
|
|
|
OMAP_MUX_TEST_FLAG(val,
|
|
|
|
|
OMAP_PIN_OFF_INPUT_PULLDOWN);
|
|
|
|
|
} else {
|
|
|
|
|
OMAP_MUX_TEST_FLAG(val,
|
|
|
|
|
OMAP_PIN_OFF_INPUT_PULLUP);
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
if (!(val & OMAP_OFFOUT_VAL)) {
|
|
|
|
|
OMAP_MUX_TEST_FLAG(val,
|
|
|
|
|
OMAP_PIN_OFF_OUTPUT_LOW);
|
|
|
|
|
} else {
|
|
|
|
|
OMAP_MUX_TEST_FLAG(val,
|
|
|
|
|
OMAP_PIN_OFF_OUTPUT_HIGH);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (val & OMAP_INPUT_EN) {
|
|
|
|
|
if (val & OMAP_PULL_ENA) {
|
|
|
|
|
if (!(val & OMAP_PULL_UP)) {
|
|
|
|
|
OMAP_MUX_TEST_FLAG(val,
|
|
|
|
|
OMAP_PIN_INPUT_PULLDOWN);
|
|
|
|
|
} else {
|
|
|
|
|
OMAP_MUX_TEST_FLAG(val, OMAP_PIN_INPUT_PULLUP);
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
OMAP_MUX_TEST_FLAG(val, OMAP_PIN_INPUT);
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
i++;
|
|
|
|
|
flags[i] = "OMAP_PIN_OUTPUT";
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
do {
|
|
|
|
|
seq_printf(s, "%s", flags[i]);
|
|
|
|
|
if (i > 0)
|
|
|
|
|
seq_printf(s, " | ");
|
|
|
|
|
} while (i-- > 0);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#define OMAP_MUX_DEFNAME_LEN 16
|
|
|
|
|
|
|
|
|
|
static int omap_mux_dbg_board_show(struct seq_file *s, void *unused)
|
|
|
|
|
{
|
|
|
|
|
struct omap_mux_entry *e;
|
|
|
|
|
|
|
|
|
|
list_for_each_entry(e, &muxmodes, node) {
|
|
|
|
|
struct omap_mux *m = &e->mux;
|
|
|
|
|
char m0_def[OMAP_MUX_DEFNAME_LEN];
|
|
|
|
|
char *m0_name = m->muxnames[0];
|
|
|
|
|
u16 val;
|
|
|
|
|
int i, mode;
|
|
|
|
|
|
|
|
|
|
if (!m0_name)
|
|
|
|
|
continue;
|
|
|
|
|
|
2010-02-02 05:03:42 +08:00
|
|
|
/* REVISIT: Needs to be updated if mode0 names get longer */
|
2009-12-12 08:16:32 +08:00
|
|
|
for (i = 0; i < OMAP_MUX_DEFNAME_LEN; i++) {
|
|
|
|
|
if (m0_name[i] == '\0') {
|
|
|
|
|
m0_def[i] = m0_name[i];
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
m0_def[i] = toupper(m0_name[i]);
|
|
|
|
|
}
|
|
|
|
|
val = omap_mux_read(m->reg_offset);
|
|
|
|
|
mode = val & OMAP_MUX_MODE7;
|
|
|
|
|
|
|
|
|
|
seq_printf(s, "OMAP%i_MUX(%s, ",
|
|
|
|
|
cpu_is_omap34xx() ? 3 : 0, m0_def);
|
|
|
|
|
omap_mux_decode(s, val);
|
|
|
|
|
seq_printf(s, "),\n");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int omap_mux_dbg_board_open(struct inode *inode, struct file *file)
|
|
|
|
|
{
|
|
|
|
|
return single_open(file, omap_mux_dbg_board_show, &inode->i_private);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static const struct file_operations omap_mux_dbg_board_fops = {
|
|
|
|
|
.open = omap_mux_dbg_board_open,
|
|
|
|
|
.read = seq_read,
|
|
|
|
|
.llseek = seq_lseek,
|
|
|
|
|
.release = single_release,
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static int omap_mux_dbg_signal_show(struct seq_file *s, void *unused)
|
|
|
|
|
{
|
|
|
|
|
struct omap_mux *m = s->private;
|
|
|
|
|
const char *none = "NA";
|
|
|
|
|
u16 val;
|
|
|
|
|
int mode;
|
|
|
|
|
|
|
|
|
|
val = omap_mux_read(m->reg_offset);
|
|
|
|
|
mode = val & OMAP_MUX_MODE7;
|
|
|
|
|
|
|
|
|
|
seq_printf(s, "name: %s.%s (0x%08lx/0x%03x = 0x%04x), b %s, t %s\n",
|
|
|
|
|
m->muxnames[0], m->muxnames[mode],
|
|
|
|
|
mux_phys + m->reg_offset, m->reg_offset, val,
|
|
|
|
|
m->balls[0] ? m->balls[0] : none,
|
|
|
|
|
m->balls[1] ? m->balls[1] : none);
|
|
|
|
|
seq_printf(s, "mode: ");
|
|
|
|
|
omap_mux_decode(s, val);
|
|
|
|
|
seq_printf(s, "\n");
|
|
|
|
|
seq_printf(s, "signals: %s | %s | %s | %s | %s | %s | %s | %s\n",
|
|
|
|
|
m->muxnames[0] ? m->muxnames[0] : none,
|
|
|
|
|
m->muxnames[1] ? m->muxnames[1] : none,
|
|
|
|
|
m->muxnames[2] ? m->muxnames[2] : none,
|
|
|
|
|
m->muxnames[3] ? m->muxnames[3] : none,
|
|
|
|
|
m->muxnames[4] ? m->muxnames[4] : none,
|
|
|
|
|
m->muxnames[5] ? m->muxnames[5] : none,
|
|
|
|
|
m->muxnames[6] ? m->muxnames[6] : none,
|
|
|
|
|
m->muxnames[7] ? m->muxnames[7] : none);
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#define OMAP_MUX_MAX_ARG_CHAR 7
|
|
|
|
|
|
|
|
|
|
static ssize_t omap_mux_dbg_signal_write(struct file *file,
|
|
|
|
|
const char __user *user_buf,
|
|
|
|
|
size_t count, loff_t *ppos)
|
|
|
|
|
{
|
|
|
|
|
char buf[OMAP_MUX_MAX_ARG_CHAR];
|
|
|
|
|
struct seq_file *seqf;
|
|
|
|
|
struct omap_mux *m;
|
|
|
|
|
unsigned long val;
|
|
|
|
|
int buf_size, ret;
|
|
|
|
|
|
|
|
|
|
if (count > OMAP_MUX_MAX_ARG_CHAR)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
|
|
memset(buf, 0, sizeof(buf));
|
|
|
|
|
buf_size = min(count, sizeof(buf) - 1);
|
|
|
|
|
|
|
|
|
|
if (copy_from_user(buf, user_buf, buf_size))
|
|
|
|
|
return -EFAULT;
|
|
|
|
|
|
|
|
|
|
ret = strict_strtoul(buf, 0x10, &val);
|
|
|
|
|
if (ret < 0)
|
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
|
|
if (val > 0xffff)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
|
|
seqf = file->private_data;
|
|
|
|
|
m = seqf->private;
|
|
|
|
|
|
|
|
|
|
omap_mux_write((u16)val, m->reg_offset);
|
|
|
|
|
*ppos += count;
|
|
|
|
|
|
|
|
|
|
return count;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int omap_mux_dbg_signal_open(struct inode *inode, struct file *file)
|
|
|
|
|
{
|
|
|
|
|
return single_open(file, omap_mux_dbg_signal_show, inode->i_private);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static const struct file_operations omap_mux_dbg_signal_fops = {
|
|
|
|
|
.open = omap_mux_dbg_signal_open,
|
|
|
|
|
.read = seq_read,
|
|
|
|
|
.write = omap_mux_dbg_signal_write,
|
|
|
|
|
.llseek = seq_lseek,
|
|
|
|
|
.release = single_release,
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static struct dentry *mux_dbg_dir;
|
|
|
|
|
|
|
|
|
|
static void __init omap_mux_dbg_init(void)
|
|
|
|
|
{
|
|
|
|
|
struct omap_mux_entry *e;
|
|
|
|
|
|
|
|
|
|
mux_dbg_dir = debugfs_create_dir("omap_mux", NULL);
|
|
|
|
|
if (!mux_dbg_dir)
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
(void)debugfs_create_file("board", S_IRUGO, mux_dbg_dir,
|
|
|
|
|
NULL, &omap_mux_dbg_board_fops);
|
|
|
|
|
|
|
|
|
|
list_for_each_entry(e, &muxmodes, node) {
|
|
|
|
|
struct omap_mux *m = &e->mux;
|
|
|
|
|
|
|
|
|
|
(void)debugfs_create_file(m->muxnames[0], S_IWUGO, mux_dbg_dir,
|
|
|
|
|
m, &omap_mux_dbg_signal_fops);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#else
|
|
|
|
|
static inline void omap_mux_dbg_init(void)
|
|
|
|
|
{
|
|
|
|
|
}
|
|
|
|
|
#endif /* CONFIG_DEBUG_FS */
|
|
|
|
|
|
2009-12-12 08:16:32 +08:00
|
|
|
static void __init omap_mux_free_names(struct omap_mux *m)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < OMAP_MUX_NR_MODES; i++)
|
|
|
|
|
kfree(m->muxnames[i]);
|
|
|
|
|
|
|
|
|
|
#ifdef CONFIG_DEBUG_FS
|
|
|
|
|
for (i = 0; i < OMAP_MUX_NR_SIDES; i++)
|
|
|
|
|
kfree(m->balls[i]);
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Free all data except for GPIO pins unless CONFIG_DEBUG_FS is set */
|
|
|
|
|
static int __init omap_mux_late_init(void)
|
|
|
|
|
{
|
|
|
|
|
struct omap_mux_entry *e, *tmp;
|
|
|
|
|
|
|
|
|
|
list_for_each_entry_safe(e, tmp, &muxmodes, node) {
|
|
|
|
|
struct omap_mux *m = &e->mux;
|
|
|
|
|
u16 mode = omap_mux_read(m->reg_offset);
|
|
|
|
|
|
|
|
|
|
if (OMAP_MODE_GPIO(mode))
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
#ifndef CONFIG_DEBUG_FS
|
|
|
|
|
mutex_lock(&muxmode_mutex);
|
|
|
|
|
list_del(&e->node);
|
|
|
|
|
mutex_unlock(&muxmode_mutex);
|
|
|
|
|
omap_mux_free_names(m);
|
|
|
|
|
kfree(m);
|
2005-11-10 22:26:51 +08:00
|
|
|
#endif
|
2009-12-12 08:16:32 +08:00
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
2009-12-12 08:16:32 +08:00
|
|
|
omap_mux_dbg_init();
|
|
|
|
|
|
2009-12-12 08:16:32 +08:00
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
late_initcall(omap_mux_late_init);
|
|
|
|
|
|
|
|
|
|
static void __init omap_mux_package_fixup(struct omap_mux *p,
|
|
|
|
|
struct omap_mux *superset)
|
|
|
|
|
{
|
|
|
|
|
while (p->reg_offset != OMAP_MUX_TERMINATOR) {
|
|
|
|
|
struct omap_mux *s = superset;
|
|
|
|
|
int found = 0;
|
|
|
|
|
|
|
|
|
|
while (s->reg_offset != OMAP_MUX_TERMINATOR) {
|
|
|
|
|
if (s->reg_offset == p->reg_offset) {
|
|
|
|
|
*s = *p;
|
|
|
|
|
found++;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
s++;
|
|
|
|
|
}
|
|
|
|
|
if (!found)
|
|
|
|
|
printk(KERN_ERR "mux: Unknown entry offset 0x%x\n",
|
|
|
|
|
p->reg_offset);
|
|
|
|
|
p++;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#ifdef CONFIG_DEBUG_FS
|
|
|
|
|
|
|
|
|
|
static void __init omap_mux_package_init_balls(struct omap_ball *b,
|
|
|
|
|
struct omap_mux *superset)
|
|
|
|
|
{
|
|
|
|
|
while (b->reg_offset != OMAP_MUX_TERMINATOR) {
|
|
|
|
|
struct omap_mux *s = superset;
|
|
|
|
|
int found = 0;
|
|
|
|
|
|
|
|
|
|
while (s->reg_offset != OMAP_MUX_TERMINATOR) {
|
|
|
|
|
if (s->reg_offset == b->reg_offset) {
|
|
|
|
|
s->balls[0] = b->balls[0];
|
|
|
|
|
s->balls[1] = b->balls[1];
|
|
|
|
|
found++;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
s++;
|
|
|
|
|
}
|
|
|
|
|
if (!found)
|
|
|
|
|
printk(KERN_ERR "mux: Unknown ball offset 0x%x\n",
|
|
|
|
|
b->reg_offset);
|
|
|
|
|
b++;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#else /* CONFIG_DEBUG_FS */
|
|
|
|
|
|
|
|
|
|
static inline void omap_mux_package_init_balls(struct omap_ball *b,
|
|
|
|
|
struct omap_mux *superset)
|
|
|
|
|
{
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#endif /* CONFIG_DEBUG_FS */
|
|
|
|
|
|
|
|
|
|
static int __init omap_mux_setup(char *options)
|
|
|
|
|
{
|
|
|
|
|
if (!options)
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
omap_mux_options = options;
|
|
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
__setup("omap_mux=", omap_mux_setup);
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Note that the omap_mux=some.signal1=0x1234,some.signal2=0x1234
|
|
|
|
|
* cmdline options only override the bootloader values.
|
|
|
|
|
* During development, please enable CONFIG_DEBUG_FS, and use the
|
|
|
|
|
* signal specific entries under debugfs.
|
|
|
|
|
*/
|
|
|
|
|
static void __init omap_mux_set_cmdline_signals(void)
|
|
|
|
|
{
|
|
|
|
|
char *options, *next_opt, *token;
|
|
|
|
|
|
|
|
|
|
if (!omap_mux_options)
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
options = kmalloc(strlen(omap_mux_options) + 1, GFP_KERNEL);
|
|
|
|
|
if (!options)
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
strcpy(options, omap_mux_options);
|
|
|
|
|
next_opt = options;
|
|
|
|
|
|
|
|
|
|
while ((token = strsep(&next_opt, ",")) != NULL) {
|
|
|
|
|
char *keyval, *name;
|
|
|
|
|
unsigned long val;
|
|
|
|
|
|
|
|
|
|
keyval = token;
|
|
|
|
|
name = strsep(&keyval, "=");
|
|
|
|
|
if (name) {
|
|
|
|
|
int res;
|
|
|
|
|
|
|
|
|
|
res = strict_strtoul(keyval, 0x10, &val);
|
|
|
|
|
if (res < 0)
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
omap_mux_init_signal(name, (u16)val);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
kfree(options);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int __init omap_mux_copy_names(struct omap_mux *src,
|
|
|
|
|
struct omap_mux *dst)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < OMAP_MUX_NR_MODES; i++) {
|
|
|
|
|
if (src->muxnames[i]) {
|
|
|
|
|
dst->muxnames[i] =
|
|
|
|
|
kmalloc(strlen(src->muxnames[i]) + 1,
|
|
|
|
|
GFP_KERNEL);
|
|
|
|
|
if (!dst->muxnames[i])
|
|
|
|
|
goto free;
|
|
|
|
|
strcpy(dst->muxnames[i], src->muxnames[i]);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#ifdef CONFIG_DEBUG_FS
|
|
|
|
|
for (i = 0; i < OMAP_MUX_NR_SIDES; i++) {
|
|
|
|
|
if (src->balls[i]) {
|
|
|
|
|
dst->balls[i] =
|
|
|
|
|
kmalloc(strlen(src->balls[i]) + 1,
|
|
|
|
|
GFP_KERNEL);
|
|
|
|
|
if (!dst->balls[i])
|
|
|
|
|
goto free;
|
|
|
|
|
strcpy(dst->balls[i], src->balls[i]);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
free:
|
|
|
|
|
omap_mux_free_names(dst);
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#endif /* CONFIG_OMAP_MUX */
|
|
|
|
|
|
|
|
|
|
static u16 omap_mux_get_by_gpio(int gpio)
|
|
|
|
|
{
|
|
|
|
|
struct omap_mux_entry *e;
|
|
|
|
|
u16 offset = OMAP_MUX_TERMINATOR;
|
|
|
|
|
|
|
|
|
|
list_for_each_entry(e, &muxmodes, node) {
|
|
|
|
|
struct omap_mux *m = &e->mux;
|
|
|
|
|
if (m->gpio == gpio) {
|
|
|
|
|
offset = m->reg_offset;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Needed for dynamic muxing of GPIO pins for off-idle */
|
|
|
|
|
u16 omap_mux_get_gpio(int gpio)
|
|
|
|
|
{
|
|
|
|
|
u16 offset;
|
|
|
|
|
|
|
|
|
|
offset = omap_mux_get_by_gpio(gpio);
|
|
|
|
|
if (offset == OMAP_MUX_TERMINATOR) {
|
|
|
|
|
printk(KERN_ERR "mux: Could not get gpio%i\n", gpio);
|
|
|
|
|
return offset;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return omap_mux_read(offset);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Needed for dynamic muxing of GPIO pins for off-idle */
|
|
|
|
|
void omap_mux_set_gpio(u16 val, int gpio)
|
|
|
|
|
{
|
|
|
|
|
u16 offset;
|
|
|
|
|
|
|
|
|
|
offset = omap_mux_get_by_gpio(gpio);
|
|
|
|
|
if (offset == OMAP_MUX_TERMINATOR) {
|
|
|
|
|
printk(KERN_ERR "mux: Could not set gpio%i\n", gpio);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
omap_mux_write(val, offset);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static struct omap_mux * __init omap_mux_list_add(struct omap_mux *src)
|
|
|
|
|
{
|
|
|
|
|
struct omap_mux_entry *entry;
|
|
|
|
|
struct omap_mux *m;
|
|
|
|
|
|
|
|
|
|
entry = kzalloc(sizeof(struct omap_mux_entry), GFP_KERNEL);
|
|
|
|
|
if (!entry)
|
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
|
|
m = &entry->mux;
|
|
|
|
|
memcpy(m, src, sizeof(struct omap_mux_entry));
|
|
|
|
|
|
|
|
|
|
#ifdef CONFIG_OMAP_MUX
|
|
|
|
|
if (omap_mux_copy_names(src, m)) {
|
|
|
|
|
kfree(entry);
|
|
|
|
|
return NULL;
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
mutex_lock(&muxmode_mutex);
|
|
|
|
|
list_add_tail(&entry->node, &muxmodes);
|
|
|
|
|
mutex_unlock(&muxmode_mutex);
|
|
|
|
|
|
|
|
|
|
return m;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Note if CONFIG_OMAP_MUX is not selected, we will only initialize
|
|
|
|
|
* the GPIO to mux offset mapping that is needed for dynamic muxing
|
|
|
|
|
* of GPIO pins for off-idle.
|
|
|
|
|
*/
|
|
|
|
|
static void __init omap_mux_init_list(struct omap_mux *superset)
|
|
|
|
|
{
|
|
|
|
|
while (superset->reg_offset != OMAP_MUX_TERMINATOR) {
|
|
|
|
|
struct omap_mux *entry;
|
|
|
|
|
|
2010-02-18 01:17:01 +08:00
|
|
|
#ifdef CONFIG_OMAP_MUX
|
|
|
|
|
if (!superset->muxnames || !superset->muxnames[0]) {
|
2009-12-12 08:16:32 +08:00
|
|
|
superset++;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
2010-02-18 01:17:01 +08:00
|
|
|
#else
|
|
|
|
|
/* Skip pins that are not muxed as GPIO by bootloader */
|
|
|
|
|
if (!OMAP_MODE_GPIO(omap_mux_read(superset->reg_offset))) {
|
2010-02-02 03:22:54 +08:00
|
|
|
superset++;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
|
2009-12-12 08:16:32 +08:00
|
|
|
entry = omap_mux_list_add(superset);
|
|
|
|
|
if (!entry) {
|
|
|
|
|
printk(KERN_ERR "mux: Could not add entry\n");
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
superset++;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2010-02-16 02:03:35 +08:00
|
|
|
#ifdef CONFIG_OMAP_MUX
|
|
|
|
|
|
|
|
|
|
static void omap_mux_init_package(struct omap_mux *superset,
|
|
|
|
|
struct omap_mux *package_subset,
|
|
|
|
|
struct omap_ball *package_balls)
|
|
|
|
|
{
|
|
|
|
|
if (package_subset)
|
|
|
|
|
omap_mux_package_fixup(package_subset, superset);
|
|
|
|
|
if (package_balls)
|
|
|
|
|
omap_mux_package_init_balls(package_balls, superset);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void omap_mux_init_signals(struct omap_board_mux *board_mux)
|
|
|
|
|
{
|
|
|
|
|
omap_mux_set_cmdline_signals();
|
|
|
|
|
omap_mux_write_array(board_mux);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#else
|
|
|
|
|
|
|
|
|
|
static void omap_mux_init_package(struct omap_mux *superset,
|
|
|
|
|
struct omap_mux *package_subset,
|
|
|
|
|
struct omap_ball *package_balls)
|
|
|
|
|
{
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void omap_mux_init_signals(struct omap_board_mux *board_mux)
|
|
|
|
|
{
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
|
2009-12-12 08:16:32 +08:00
|
|
|
int __init omap_mux_init(u32 mux_pbase, u32 mux_size,
|
|
|
|
|
struct omap_mux *superset,
|
|
|
|
|
struct omap_mux *package_subset,
|
|
|
|
|
struct omap_board_mux *board_mux,
|
|
|
|
|
struct omap_ball *package_balls)
|
|
|
|
|
{
|
|
|
|
|
if (mux_base)
|
|
|
|
|
return -EBUSY;
|
|
|
|
|
|
2009-12-12 08:16:32 +08:00
|
|
|
mux_phys = mux_pbase;
|
2009-12-12 08:16:32 +08:00
|
|
|
mux_base = ioremap(mux_pbase, mux_size);
|
|
|
|
|
if (!mux_base) {
|
|
|
|
|
printk(KERN_ERR "mux: Could not ioremap\n");
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
}
|
|
|
|
|
|
2010-02-16 02:03:35 +08:00
|
|
|
omap_mux_init_package(superset, package_subset, package_balls);
|
2009-12-12 08:16:32 +08:00
|
|
|
omap_mux_init_list(superset);
|
2010-02-16 02:03:35 +08:00
|
|
|
omap_mux_init_signals(board_mux);
|
2010-01-20 10:17:07 +08:00
|
|
|
|
2009-12-12 08:16:32 +08:00
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2010-02-13 04:26:48 +08:00
|
|
|
#endif /* CONFIG_ARCH_OMAP3 */
|
2009-12-12 08:16:33 +08:00
|
|
|
|