48 lines
1.2 KiB
C
48 lines
1.2 KiB
C
/*
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* Copyright 2013 GE Intelligent Platforms, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (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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* Minimal GPIO support.
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*/
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#include <common.h>
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#include <errno.h>
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#include <asm/io.h>
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#include <mach/gpio.h>
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#include <mach/immap_85xx.h>
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#ifdef CONFIG_MPC8544
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/* Enable all GPIO output pins */
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void fsl_enable_gpiout(void)
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{
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void __iomem *gpiocr = IOMEM(MPC85xx_GUTS_ADDR + MPC85xx_GPIOCR_OFFSET);
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out_be32(gpiocr, in_be32(gpiocr) | MPC85xx_GPIOCR_GPOUT);
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}
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void gpio_set_value(unsigned gpio, int val)
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{
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void __iomem *gpout = IOMEM(MPC85xx_GUTS_ADDR + MPC85xx_GPOUTDR_OFFSET);
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int gpoutdr;
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if (gpio >= 8)
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return;
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gpoutdr = in_be32(gpout);
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if (val)
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gpoutdr |= MPC85xx_GPIOBIT(gpio);
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else
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gpoutdr &= ~MPC85xx_GPIOBIT(gpio);
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out_be32(gpout, gpoutdr);
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}
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#endif
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