a73b93157f
It encourages users from writing to the FSF without giving an address. Linux also prefers to drop that and their checkpatch.pl (that we imported) looks out for that. This is the result of util/scripts/no-fsf-addresses.sh with no further editing. Change-Id: Ie96faea295fe001911d77dbc51e9a6789558fbd6 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/11888 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
/*
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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 "SBPLATFORM.h"
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#include <southbridge/amd/cimx/cimx_util.h>
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#include "gpio_ftns.h"
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uintptr_t find_gpio_base(void)
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{
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u8 pm_index, pm_data;
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uintptr_t base_addr = 0;
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/* Find the ACPImmioAddr base address */
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for ( pm_index = 0x27; pm_index > 0x23; pm_index-- ) {
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outb( pm_index, PM_INDEX );
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pm_data = inb( PM_DATA );
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base_addr <<= 8;
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base_addr |= (u32)pm_data;
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}
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base_addr &= 0xFFFFF000;
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return (base_addr);
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}
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void configure_gpio(uintptr_t base_addr, u32 gpio, u8 iomux_ftn, u8 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 + 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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u8 read_gpio(uintptr_t base_addr, u32 gpio)
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{
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u8 *memptr = (u8 *)(base_addr + GPIO_OFFSET + gpio);
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return (*memptr & GPIO_DATA_IN) ? 1 : 0;
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}
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int get_spd_offset(void)
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{
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uintptr_t base_addr = find_gpio_base();
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u8 spd_offset = read_gpio(base_addr, GPIO_16);
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return spd_offset;
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}
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