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/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */
#include <types.h>
#include <arch/io.h>
#include <amdblocks/acpimmio_map.h>
#include <amdblocks/acpimmio.h>
void enable_acpimmio_decode_pm24(void)
{
uint32_t dw;
dw = pm_io_read32(ACPIMMIO_DECODE_REGISTER_24);
dw |= PM_24_ACPIMMIO_DECODE_EN;
pm_io_write32(ACPIMMIO_DECODE_REGISTER_24, dw);
}
void enable_acpimmio_decode_pm04(void)
{
uint32_t dw;
dw = pm_io_read32(ACPIMMIO_DECODE_REGISTER_04);
dw |= PM_04_ACPIMMIO_DECODE_EN;
pm_io_write32(ACPIMMIO_DECODE_REGISTER_04, dw);
}
/* PM registers are accessed a byte at a time via CD6/CD7 */
uint8_t pm_io_read8(uint8_t reg)
{
outb(reg, PM_INDEX);
return inb(PM_DATA);
}
uint16_t pm_io_read16(uint8_t reg)
{
return (pm_io_read8(reg + sizeof(uint8_t)) << 8) | pm_io_read8(reg);
}
uint32_t pm_io_read32(uint8_t reg)
{
return (pm_io_read16(reg + sizeof(uint16_t)) << 16) | pm_io_read16(reg);
}
void pm_io_write8(uint8_t reg, uint8_t value)
{
outb(reg, PM_INDEX);
outb(value, PM_DATA);
}
void pm_io_write16(uint8_t reg, uint16_t value)
{
pm_io_write8(reg, value & 0xff);
value >>= 8;
pm_io_write8(reg + sizeof(uint8_t), value & 0xff);
}
void pm_io_write32(uint8_t reg, uint32_t value)
{
pm_io_write16(reg, value & 0xffff);
value >>= 16;
pm_io_write16(reg + sizeof(uint16_t), value & 0xffff);
}
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