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The Power Management Controller (PMC) controls many of the power management features present in the Atom SoC. This driver provides a native power off function via PMC PCI IO port. On some ACPI hardware-reduced platforms(e.g. ASUS-T100), ACPI sleep registers are not valid so that (*pm_power_off)() is not hooked by acpi_power_off(). The power off function in this driver is installed only when pm_power_off is NULL. Signed-off-by: Aubrey Li <aubrey.li@linux.intel.com> Link: http://lkml.kernel.org/r/53B0FEEA.3010805@linux.intel.com Signed-off-by: Lejun Zhu <lejun.zhu@linux.intel.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
32 lines
961 B
C
32 lines
961 B
C
/*
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* Intel Atom SOC Power Management Controller Header File
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* Copyright (c) 2014, Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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*/
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#ifndef PMC_ATOM_H
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#define PMC_ATOM_H
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/* ValleyView Power Control Unit PCI Device ID */
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#define PCI_DEVICE_ID_VLV_PMC 0x0F1C
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/* PMC I/O Registers */
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#define ACPI_BASE_ADDR_OFFSET 0x40
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#define ACPI_BASE_ADDR_MASK 0xFFFFFE00
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#define ACPI_MMIO_REG_LEN 0x100
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#define PM1_CNT 0x4
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#define SLEEP_TYPE_MASK 0xFFFFECFF
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#define SLEEP_TYPE_S5 0x1C00
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#define SLEEP_ENABLE 0x2000
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#endif /* PMC_ATOM_H */
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