ab06fb0cae
- Remove left-overs from more generic code in i82801xx times, and fix register names as needed. - Simplify IDE init code (and save some ROM space too). - Simplify PIRQ code. - Use u8 et al instead of uint8_t everywhere. - Random other fixes. Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de> Acked-by: Uwe Hermann <uwe@hermann-uwe.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5925 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
51 lines
1.7 KiB
C
51 lines
1.7 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2005 Digital Design Corporation
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* (Written by Steven J. Magnani <steve@digidescorp.com> for Digital Design)
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* Copyright (C) 2007 Corey Osgood <corey.osgood@gmail.com>
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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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <console/console.h>
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#include <device/device.h>
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#include <device/pci.h>
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#include "i82801ax.h"
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void i82801ax_enable(device_t dev)
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{
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u16 reg16, index;
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device_t lpc_dev;
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/* Search for the 82801AA/AB LPC device (D31:F0) on PCI bus 0. */
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lpc_dev = dev_find_slot(0, PCI_DEVFN(0x1f, 0));
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if (!lpc_dev)
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return;
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index = PCI_FUNC(dev->path.pci.devfn);
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reg16 = pci_read_config16(lpc_dev, FUNC_DIS);
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reg16 &= ~(1 << index); /* Enable device. */
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if (!dev->enabled)
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reg16 |= (1 << index); /* Disable device, if desired. */
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pci_write_config16(lpc_dev, FUNC_DIS, reg16);
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}
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struct chip_operations southbridge_intel_i82801ax_ops = {
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CHIP_NAME("Intel ICH/ICH0 (82801AA/AB) Series Southbridge")
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.enable_dev = i82801ax_enable,
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};
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