smihandler.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <cpu/x86/smm.h>
#include <device/pci_ops.h>
#include <southbridge/intel/common/pmutil.h>
#include <northbridge/intel/ironlake/ironlake.h>
#include <ec/acpi/ec.h>
 
void mainboard_smi_gpi(u32 gpi_sts)
{
}
 
int mainboard_smi_apmc(u8 data)
{
        u8 tmp;
        switch (data) {
        case APM_CNT_ACPI_ENABLE:
                tmp = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xbb);
                tmp &= ~0x03;
                tmp |= 0x02;
                pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xbb, tmp);
                break;
        case APM_CNT_ACPI_DISABLE:
                tmp = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xbb);
                tmp &= ~0x03;
                tmp |= 0x01;
                pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xbb, tmp);
                break;
        default:
                break;
        }
        return 0;
}