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/*
* Utilities for SMI handlers and SMM setup
*
* Copyright (C) 2014 Alexandru Gagniuc <mr.nuke.me@gmail.com>
* Subject to the GNU GPL v2, or (at your option) any later version.
*/
#ifndef _SOUTHBRIDGE_AMD_PI_HUDSON_SMI_H
#define _SOUTHBRIDGE_AMD_PI_HUDSON_SMI_H
#include <arch/io.h>
/* ACPI_MMIO_BASE + 0x200 -- leave this string here so grep catches it.
* This is defined by AGESA, but we dpn't include AGESA headers to avoid
* polluting the namesace.
*/
#define SMI_BASE 0xfed80200
#define SMI_REG_SMITRIG0 0x98
#define SMITRG0_EOS (1 << 28)
#define SMITRG0_SMIENB (1 << 31)
#define SMI_REG_CONTROL0 0xa0
enum smi_mode {
SMI_MODE_DISABLE = 0,
SMI_MODE_SMI = 1,
SMI_MODE_NMI = 2,
SMI_MODE_IRQ13 = 3,
};
enum smi_lvl {
SMI_LVL_LOW = 0,
SMI_LVL_HIGH = 1,
};
static inline uint32_t smi_read32(uint8_t offset)
{
return read32((void *)(SMI_BASE + offset));
}
static inline void smi_write32(uint8_t offset, uint32_t value)
{
write32((void *)(SMI_BASE + offset), value);
}
static inline uint16_t smi_read16(uint8_t offset)
{
return read16((void *)(SMI_BASE + offset));
}
static inline void smi_write16(uint8_t offset, uint16_t value)
{
write16((void *)(SMI_BASE + offset), value);
}
void hudson_configure_gevent_smi(uint8_t gevent, uint8_t mode, uint8_t level);
void hudson_disable_gevent_smi(uint8_t gevent);
void hudson_enable_acpi_cmd_smi(void);
#ifndef __SMM__
void hudson_enable_smi_generation(void);
#endif
#endif /* _SOUTHBRIDGE_AMD_PI_HUDSON_SMI_H */
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