35 lines
1 KiB
C
35 lines
1 KiB
C
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/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2014 Sage Electronic Engineering, LLC
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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; version 2 of the License.
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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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#include <stdint.h>
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#include <arch/io.h>
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#include <southbridge/amd/cimx/cimx_util.h>
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#include "gpio_ftns.h"
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void configure_gpio(uintptr_t base_addr, u32 iomux_gpio, u8 iomux_ftn, u32 gpio, u32 setting)
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{
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u8 bdata;
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u8 *memptr;
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memptr = (u8 *)(base_addr + IOMUX_OFFSET + iomux_gpio);
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*memptr = iomux_ftn;
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memptr = (u8 *)(base_addr + GPIO_OFFSET + gpio);
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bdata = *memptr;
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bdata &= 0x07;
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bdata |= setting; /* set direction and data value */
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*memptr = bdata;
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}
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