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/*
* Copyright (c) 2011-2012, Code Aurora Forum. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google, Inc. nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <asm/arch-ipq806x/iomap.h>
#include <asm/arch-ipq806x/gpio.h>
#include <asm/io.h>
/*******************************************************
Function description: configure GPIO functinality
Arguments :
unsigned int gpio - Gpio number
unsigned int func - Functionality number
unsigned int dir - direction 0- i/p, 1- o/p
unsigned int pull - pull up/down, no pull range(0-3)
unsigned int drvstr - range (0 - 7)-> (2- 16)MA steps of 2
unsigned int enable - 1 - Disable, 2- Enable.
Return : None
*******************************************************/
void gpio_tlmm_config(unsigned int gpio, unsigned int func,
unsigned int dir, unsigned int pull,
unsigned int drvstr, unsigned int enable)
{
unsigned int val = 0;
val |= pull;
val |= func << 2;
val |= drvstr << 6;
val |= enable << 9;
unsigned int *addr = (unsigned int *)GPIO_CONFIG_ADDR(gpio);
writel(val, addr);
return;
}
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