121 lines
2.9 KiB
C
121 lines
2.9 KiB
C
/*
|
|
* Intel OnChip System Fabric MailBox access support
|
|
*/
|
|
|
|
#ifndef IOSF_MBI_SYMS_H
|
|
#define IOSF_MBI_SYMS_H
|
|
|
|
#define MBI_MCR_OFFSET 0xD0
|
|
#define MBI_MDR_OFFSET 0xD4
|
|
#define MBI_MCRX_OFFSET 0xD8
|
|
|
|
#define MBI_RD_MASK 0xFEFFFFFF
|
|
#define MBI_WR_MASK 0X01000000
|
|
|
|
#define MBI_MASK_HI 0xFFFFFF00
|
|
#define MBI_MASK_LO 0x000000FF
|
|
#define MBI_ENABLE 0xF0
|
|
|
|
/* IOSF SB read/write opcodes */
|
|
#define MBI_MMIO_READ 0x00
|
|
#define MBI_MMIO_WRITE 0x01
|
|
#define MBI_CFG_READ 0x04
|
|
#define MBI_CFG_WRITE 0x05
|
|
#define MBI_CR_READ 0x06
|
|
#define MBI_CR_WRITE 0x07
|
|
#define MBI_REG_READ 0x10
|
|
#define MBI_REG_WRITE 0x11
|
|
#define MBI_ESRAM_READ 0x12
|
|
#define MBI_ESRAM_WRITE 0x13
|
|
|
|
/* Baytrail available units */
|
|
#define BT_MBI_UNIT_AUNIT 0x00
|
|
#define BT_MBI_UNIT_SMC 0x01
|
|
#define BT_MBI_UNIT_CPU 0x02
|
|
#define BT_MBI_UNIT_BUNIT 0x03
|
|
#define BT_MBI_UNIT_PMC 0x04
|
|
#define BT_MBI_UNIT_GFX 0x06
|
|
#define BT_MBI_UNIT_SMI 0x0C
|
|
#define BT_MBI_UNIT_USB 0x43
|
|
#define BT_MBI_UNIT_SATA 0xA3
|
|
#define BT_MBI_UNIT_PCIE 0xA6
|
|
|
|
/* Quark available units */
|
|
#define QRK_MBI_UNIT_HBA 0x00
|
|
#define QRK_MBI_UNIT_HB 0x03
|
|
#define QRK_MBI_UNIT_RMU 0x04
|
|
#define QRK_MBI_UNIT_MM 0x05
|
|
#define QRK_MBI_UNIT_SOC 0x31
|
|
|
|
#if IS_ENABLED(CONFIG_IOSF_MBI)
|
|
|
|
bool iosf_mbi_available(void);
|
|
|
|
/**
|
|
* iosf_mbi_read() - MailBox Interface read command
|
|
* @port: port indicating subunit being accessed
|
|
* @opcode: port specific read or write opcode
|
|
* @offset: register address offset
|
|
* @mdr: register data to be read
|
|
*
|
|
* Locking is handled by spinlock - cannot sleep.
|
|
* Return: Nonzero on error
|
|
*/
|
|
int iosf_mbi_read(u8 port, u8 opcode, u32 offset, u32 *mdr);
|
|
|
|
/**
|
|
* iosf_mbi_write() - MailBox unmasked write command
|
|
* @port: port indicating subunit being accessed
|
|
* @opcode: port specific read or write opcode
|
|
* @offset: register address offset
|
|
* @mdr: register data to be written
|
|
*
|
|
* Locking is handled by spinlock - cannot sleep.
|
|
* Return: Nonzero on error
|
|
*/
|
|
int iosf_mbi_write(u8 port, u8 opcode, u32 offset, u32 mdr);
|
|
|
|
/**
|
|
* iosf_mbi_modify() - MailBox masked write command
|
|
* @port: port indicating subunit being accessed
|
|
* @opcode: port specific read or write opcode
|
|
* @offset: register address offset
|
|
* @mdr: register data being modified
|
|
* @mask: mask indicating bits in mdr to be modified
|
|
*
|
|
* Locking is handled by spinlock - cannot sleep.
|
|
* Return: Nonzero on error
|
|
*/
|
|
int iosf_mbi_modify(u8 port, u8 opcode, u32 offset, u32 mdr, u32 mask);
|
|
|
|
#else /* CONFIG_IOSF_MBI is not enabled */
|
|
static inline
|
|
bool iosf_mbi_available(void)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline
|
|
int iosf_mbi_read(u8 port, u8 opcode, u32 offset, u32 *mdr)
|
|
{
|
|
WARN(1, "IOSF_MBI driver not available");
|
|
return -EPERM;
|
|
}
|
|
|
|
static inline
|
|
int iosf_mbi_write(u8 port, u8 opcode, u32 offset, u32 mdr)
|
|
{
|
|
WARN(1, "IOSF_MBI driver not available");
|
|
return -EPERM;
|
|
}
|
|
|
|
static inline
|
|
int iosf_mbi_modify(u8 port, u8 opcode, u32 offset, u32 mdr, u32 mask)
|
|
{
|
|
WARN(1, "IOSF_MBI driver not available");
|
|
return -EPERM;
|
|
}
|
|
#endif /* CONFIG_IOSF_MBI */
|
|
|
|
#endif /* IOSF_MBI_SYMS_H */
|