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/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */
#ifndef __ESPI_H__
#define __ESPI_H__
/* ESPI Slave Registers (Document # 327432-004 Revision 1.0 Chapter 7) */
#define ESPI_SLAVE_DEVICE_ID 0x04
#define ESPI_SLAVE_VERSION_ID_SHIFT 0
#define ESPI_SLAVE_VERSION_ID_MASK 0xf
#define ESPI_SLAVE_GENERAL_CFG 0x08
#define ESPI_SLAVE_CRC_ENABLE (1 << 31)
#define ESPI_SLAVE_CRC_DISABLE (0 << 31)
#define ESPI_SLAVE_RESP_MOD_ENABLE (1 << 30)
#define ESPI_SLAVE_RESP_MOD_DISABLE (0 << 30)
#define ESPI_SLAVE_ALERT_MODE_PIN (1 << 28)
#define ESPI_SLAVE_ALERT_MODE_IO1 (0 << 28)
#define ESPI_SLAVE_IO_MODE_SEL_SHIFT 26
#define ESPI_SLAVE_IO_MODE_SEL_MASK (0x3 << ESPI_SLAVE_IO_MODE_SEL_SHIFT)
#define ESPI_SLAVE_IO_MODE_SEL_VAL(x) ((x) << ESPI_SLAVE_IO_MODE_SEL_SHIFT)
#define ESPI_SLAVE_IO_MODE_SEL_SINGLE ESPI_SLAVE_IO_MODE_SEL_VAL(0)
#define ESPI_SLAVE_IO_MODE_SEL_DUAL ESPI_SLAVE_IO_MODE_SEL_VAL(1)
#define ESPI_SLAVE_IO_MODE_SEL_QUAD ESPI_SLAVE_IO_MODE_SEL_VAL(2)
#define ESPI_SLAVE_IO_MODE_SUPP_SHIFT 24
#define ESPI_SLAVE_IO_MODE_SUPP_MASK (0x3 << ESPI_SLAVE_IO_MODE_SUPP_SHIFT)
#define ESPI_SLAVE_IO_MODE_SUPP_VAL(x) ((x) << ESPI_SLAVE_IO_MODE_SUPP_SHIFT)
#define ESPI_SLAVE_IO_MODE_SUPP_SINGLE_ONLY ESPI_SLAVE_IO_MODE_SUPP_VAL(0)
#define ESPI_SLAVE_IO_MODE_SUPP_SINGLE_DUAL ESPI_SLAVE_IO_MODE_SUPP_VAL(1)
#define ESPI_SLAVE_IO_MODE_SUPP_SINGLE_QUAD ESPI_SLAVE_IO_MODE_SUPP_VAL(2)
#define ESPI_SLAVE_IO_MODE_SUPP_SINGLE_DUAL_QUAD ESPI_SLAVE_IO_MODE_SUPP_VAL(3)
#define ESPI_SLAVE_OPEN_DRAIN_ALERT_SEL (1 << 23)
#define ESPI_SLAVE_PUSH_PULL_ALERT_SEL (0 << 23)
#define ESPI_SLAVE_OP_FREQ_SEL_SHIFT 20
#define ESPI_SLAVE_OP_FREQ_SEL_MASK (0x7 << ESPI_SLAVE_OP_FREQ_SEL_SHIFT)
#define ESPI_SLAVE_OP_FREQ_SEL_VAL(x) ((x) << ESPI_SLAVE_OP_FREQ_SEL_SHIFT)
#define ESPI_SLAVE_OP_FREQ_SEL_20_MHZ ESPI_SLAVE_OP_FREQ_SEL_VAL(0)
#define ESPI_SLAVE_OP_FREQ_SEL_25_MHZ ESPI_SLAVE_OP_FREQ_SEL_VAL(1)
#define ESPI_SLAVE_OP_FREQ_SEL_33_MHZ ESPI_SLAVE_OP_FREQ_SEL_VAL(2)
#define ESPI_SLAVE_OP_FREQ_SEL_50_MHZ ESPI_SLAVE_OP_FREQ_SEL_VAL(3)
#define ESPI_SLAVE_OP_FREQ_SEL_66_MHZ ESPI_SLAVE_OP_FREQ_SEL_VAL(4)
#define ESPI_SLAVE_OPEN_DRAIN_ALERT_SUPP (1 << 19)
#define ESPI_SLAVE_OP_FREQ_SUPP_SHIFT 16
#define ESPI_SLAVE_OP_FREQ_SUPP_MASK (0x7 << ESPI_SLAVE_OP_FREQ_SUPP_SHIFT)
#define ESPI_SLAVE_OP_FREQ_SUPP_VAL(x) ((x) << ESPI_SLAVE_OP_FREQ_SUPP_SHIFT)
#define ESPI_SLAVE_OP_FREQ_SUPP_20_MHZ ESPI_SLAVE_OP_FREQ_SUPP_VAL(0)
#define ESPI_SLAVE_OP_FREQ_SUPP_25_MHZ ESPI_SLAVE_OP_FREQ_SUPP_VAL(1)
#define ESPI_SLAVE_OP_FREQ_SUPP_33_MHZ ESPI_SLAVE_OP_FREQ_SUPP_VAL(2)
#define ESPI_SLAVE_OP_FREQ_SUPP_50_MHZ ESPI_SLAVE_OP_FREQ_SUPP_VAL(3)
#define ESPI_SLAVE_OP_FREQ_SUPP_66_MHZ ESPI_SLAVE_OP_FREQ_SUPP_VAL(4)
#define ESPI_SLAVE_MAX_WAIT_SHIFT 12
#define ESPI_SLAVE_MAX_WAIT_MASK (0xf << ESPI_SLAVE_MAX_WAIT_SHIFT)
#define ESPI_SLAVE_MAX_WAIT_STATE(x) \
(((x) << ESPI_SLAVE_MAX_WAIT_SHIFT) & ESPI_MAX_WAIT_MASK)
#define ESPI_SLAVE_FLASH_CH_SUPP (1 << 3)
#define ESPI_SLAVE_OOB_CH_SUPP (1 << 2)
#define ESPI_SLAVE_VW_CH_SUPP (1 << 1)
#define ESPI_SLAVE_PERIPH_CH_SUPP (1 << 0)
#define ESPI_SLAVE_PERIPH_CFG 0x10
#define ESPI_SLAVE_PERIPH_MAX_READ_SIZE_SHIFT 12
#define ESPI_SLAVE_PERIPH_MAX_READ_SIZE_MASK \
(0x7 << ESPI_SLAVE_PERIPH_MAX_READ_SIZE_SHIFT)
#define ESPI_SLAVE_PERIPH_MAX_READ_SIZE_VAL(x) \
((x) << ESPI_SLAVE_PERIPH_MAX_READ_SIZE_SHIFT)
#define ESPI_SLAVE_PERIPH_MAX_READ_64B ESPI_SLAVE_PERIPH_MAX_READ_SIZE_VAL(1)
#define ESPI_SLAVE_PERIPH_MAX_READ_128B ESPI_SLAVE_PERIPH_MAX_READ_SIZE_VAL(2)
#define ESPI_SLAVE_PERIPH_MAX_READ_256B ESPI_SLAVE_PERIPH_MAX_READ_SIZE_VAL(3)
#define ESPI_SLAVE_PERIPH_MAX_READ_512B ESPI_SLAVE_PERIPH_MAX_READ_SIZE_VAL(4)
#define ESPI_SLAVE_PERIPH_MAX_READ_1024B ESPI_SLAVE_PERIPH_MAX_READ_SIZE_VAL(5)
#define ESPI_SLAVE_PERIPH_MAX_READ_2048B ESPI_SLAVE_PERIPH_MAX_READ_SIZE_VAL(6)
#define ESPI_SLAVE_PERIPH_MAX_READ_4096B ESPI_SLAVE_PERIPH_MAX_READ_SIZE_VAL(7)
#define ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SEL_SHIFT 8
#define ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SEL_MASK \
(0x7 << ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SEL_SHIFT)
#define ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SEL_VAL(x) \
((x) << ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SEL_SHIFT)
#define ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SEL_64B \
ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SEL_VAL(1)
#define ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SEL_128B \
ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SEL_VAL(2)
#define ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SEL_256B \
ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SEL_VAL(3)
#define ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SUPP_SHIFT 4
#define ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SUPP_MASK \
(0x7 << ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SUPP_SHIFT)
#define ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SUPP_VAL(x) \
((x) << ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SUPP_SHIFT)
#define ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SUPP_64B \
ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SUPP_VAL(1)
#define ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SUPP_128B \
ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SUPP_VAL(2)
#define ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SUPP_256B \
ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SUPP_VAL(3)
#define ESPI_SLAVE_PERIPH_BUS_MASTER_ENABLE (1 << 2)
#define ESPI_SLAVE_VW_CFG 0x20
#define ESPI_SLAVE_VW_COUNT_SEL_SHIFT 16
#define ESPI_SLAVE_VW_COUNT_SEL_MASK (0x3f << ESPI_SLAVE_VW_COUNT_SEL_SHIFT)
/* 0-based field. Value of 0 indicates 1 virtual wire selected. */
#define ESPI_SLAVE_VW_COUNT_SEL_VAL(x) \
((x) << ESPI_SLAVE_VW_COUNT_SEL_SHIFT)
#define ESPI_SLAVE_VW_COUNT_SUPP_SHIFT 8
#define ESPI_SLAVE_VW_COUNT_SUPP_MASK \
(0x3f << ESPI_SLAVE_VW_COUNT_SUPP_SHIFT)
#define ESPI_SLAVE_OOB_CFG 0x30
#define ESPI_SLAVE_OOB_MAX_PAYLOAD_SIZE_SEL_SHIFT 8
#define ESPI_SLAVE_OOB_MAX_PAYLOAD_SIZE_SEL_MASK \
(0x7 << ESPI_SLAVE_OOB_MAX_PAYLOAD_SIZE_SEL_SHIFT)
#define ESPI_SLAVE_OOB_MAX_PAYLOAD_SIZE_SEL_VAL(x) \
((x) << ESPI_SLAVE_OOB_MAX_PAYLOAD_SIZE_SEL_SHIFT)
#define ESPI_SLAVE_OOB_MAX_PAYLOAD_SIZE_SEL_64B \
ESPI_SLAVE_OOB_MAX_PAYLOAD_SIZE_SEL_VAL(1)
#define ESPI_SLAVE_OOB_MAX_PAYLOAD_SIZE_SEL_128B \
ESPI_SLAVE_OOB_MAX_PAYLOAD_SIZE_SEL_VAL(2)
#define ESPI_SLAVE_OOB_MAX_PAYLOAD_SIZE_SEL_256B \
ESPI_SLAVE_OOB_MAX_PAYLOAD_SIZE_SEL_VAL(3)
#define ESPI_SLAVE_OOB_MAX_PAYLOAD_SIZE_SUPP_SHIFT 4
#define ESPI_SLAVE_OOB_MAX_PAYLOAD_SIZE_SUPP_MASK \
(0x7 << ESPI_SLAVE_OOB_MAX_PAYLOAD_SIZE_SUPP_SHIFT)
#define ESPI_SLAVE_OOB_MAX_PAYLOAD_SIZE_SUPP_VAL(x) \
((x) << ESPI_SLAVE_OOB_MAX_PAYLOAD_SIZE_SUPP_SHIFT)
#define ESPI_SLAVE_OOB_MAX_PAYLOAD_SIZE_SUPP_64B \
ESPI_SLAVE_OOB_MAX_PAYLOAD_SIZE_SUPP_VAL(1)
#define ESPI_SLAVE_OOB_MAX_PAYLOAD_SIZE_SUPP_128B \
ESPI_SLAVE_OOB_MAX_PAYLOAD_SIZE_SUPP_VAL(2)
#define ESPI_SLAVE_OOB_MAX_PAYLOAD_SIZE_SUPP_256B \
ESPI_SLAVE_OOB_MAX_PAYLOAD_SIZE_SUPP_VAL(3)
#define ESPI_SLAVE_FLASH_CFG 0x40
#define ESPI_SLAVE_FLASH_MAX_READ_SIZE_SHIFT 12
#define ESPI_SLAVE_FLASH_MAX_READ_SIZE_MASK \
(0x7 << ESPI_SLAVE_FLASH_MAX_READ_SIZE_SHIFT)
#define ESPI_SLAVE_FLASH_MAX_READ_SIZE_VAL(x) \
((x) << ESPI_SLAVE_FLASH_MAX_READ_SIZE_SHIFT)
#define ESPI_SLAVE_FLASH_MAX_READ_64B ESPI_SLAVE_FLASH_MAX_READ_SIZE_VAL(1)
#define ESPI_SLAVE_FLASH_MAX_READ_128B ESPI_SLAVE_FLASH_MAX_READ_SIZE_VAL(2)
#define ESPI_SLAVE_FLASH_MAX_READ_256B ESPI_SLAVE_FLASH_MAX_READ_SIZE_VAL(3)
#define ESPI_SLAVE_FLASH_MAX_READ_512B ESPI_SLAVE_FLASH_MAX_READ_SIZE_VAL(4)
#define ESPI_SLAVE_FLASH_MAX_READ_1024B ESPI_SLAVE_FLASH_MAX_READ_SIZE_VAL(5)
#define ESPI_SLAVE_FLASH_MAX_READ_2048B ESPI_SLAVE_FLASH_MAX_READ_SIZE_VAL(6)
#define ESPI_SLAVE_FLASH_MAX_READ_4096B ESPI_SLAVE_FLASH_MAX_READ_SIZE_VAL(7)
#define ESPI_SLAVE_FLASH_SHARING_MODE_MAF (1 << 11)
#define ESPI_SLAVE_FLASH_SHARING_MODE_SAF (0 << 11)
#define ESPI_SLAVE_FLASH_MAX_PAYLOAD_SIZE_SEL_SHIFT 8
#define ESPI_SLAVE_FLASH_MAX_PAYLOAD_SIZE_SEL_MASK \
(0x7 << ESPI_SLAVE_FLASH_MAX_PAYLOAD_SIZE_SEL_SHIFT)
#define ESPI_SLAVE_FLASH_MAX_PAYLOAD_SIZE_SEL_VAL(x) \
((x) << ESPI_SLAVE_FLASH_MAX_PAYLOAD_SIZE_SEL_SHIFT)
#define ESPI_SLAVE_FLASH_MAX_PAYLOAD_SIZE_SEL_64B \
ESPI_SLAVE_FLASH_MAX_PAYLOAD_SIZE_SEL_VAL(1)
#define ESPI_SLAVE_FLASH_MAX_PAYLOAD_SIZE_SEL_128B \
ESPI_SLAVE_FLASH_MAX_PAYLOAD_SIZE_SEL_VAL(2)
#define ESPI_SLAVE_FLASH_MAX_PAYLOAD_SIZE_SEL_256B \
ESPI_SLAVE_FLASH_MAX_PAYLOAD_SIZE_SEL_VAL(3)
#define ESPI_SLAVE_FLASH_MAX_PAYLOAD_SIZE_SUPP_SHIFT 5
#define ESPI_SLAVE_FLASH_MAX_PAYLOAD_SIZE_SUPP_MASK \
(0x7 << ESPI_SLAVE_FLASH_MAX_PAYLOAD_SIZE_SUPP_SHIFT)
#define ESPI_SLAVE_FLASH_MAX_PAYLOAD_SIZE_SUPP_VAL(x) \
((x) << ESPI_SLAVE_FLASH_MAX_PAYLOAD_SIZE_SUPP_SHIFT)
#define ESPI_SLAVE_FLASH_MAX_PAYLOAD_SIZE_SUPP_64B \
ESPI_SLAVE_FLASH_MAX_PAYLOAD_SIZE_SUPP_VAL(1)
#define ESPI_SLAVE_FLASH_MAX_PAYLOAD_SIZE_SUPP_128B \
ESPI_SLAVE_FLASH_MAX_PAYLOAD_SIZE_SUPP_VAL(2)
#define ESPI_SLAVE_FLASH_MAX_PAYLOAD_SIZE_SUPP_256B \
ESPI_SLAVE_FLASH_MAX_PAYLOAD_SIZE_SUPP_VAL(3)
#define ESPI_SLAVE_FLASH_BLOCK_ERASE_SIZE_SHIFT 2
#define ESPI_SLAVE_FLASH_BLOCK_ERASE_SIZE_MASK \
(0x7 << ESPI_SLAVE_FLASH_BLOCK_ERASE_SIZE_SHIFT)
#define ESPI_SLAVE_FLASH_BLOCK_ERASE_SIZE_VAL(x) \
((x) << ESPI_SLAVE_FLASH_BLOCK_ERASE_SIZE_SHIFT)
#define ESPI_SLAVE_FLASH_BLOCK_ERASE_SIZE_4K \
ESPI_SLAVE_FLASH_BLOCK_ERASE_SIZE_VAL(1)
#define ESPI_SLAVE_FLASH_BLOCK_ERASE_SIZE_64K \
ESPI_SLAVE_FLASH_BLOCK_ERASE_SIZE_VAL(2)
#define ESPI_SLAVE_FLASH_BLOCK_ERASE_SIZE_4K_64K \
ESPI_SLAVE_FLASH_BLOCK_ERASE_SIZE_VAL(3)
#define ESPI_SLAVE_FLASH_BLOCK_ERASE_SIZE_128K \
ESPI_SLAVE_FLASH_BLOCK_ERASE_SIZE_VAL(4)
#define ESPI_SLAVE_FLASH_BLOCK_ERASE_SIZE_256K \
ESPI_SLAVE_FLASH_BLOCK_ERASE_SIZE_VAL(5)
/*
* All channels -- peripheral, OOB, VW and flash use the same bits for channel ready and channel
* enable.
*/
#define ESPI_SLAVE_CHANNEL_READY (1 << 1)
#define ESPI_SLAVE_CHANNEL_ENABLE (1 << 0)
/* ESPI Slave Registers (Document # 327432-004 Revision 1.0 Chapter 5) */
#define ESPI_VW_INDEX_INTERRUPT_EVENT_0 0 /* Interrupt lines 0 - 127 */
#define ESPI_VW_INDEX_INTERRUPT_EVENT_1 1 /* Interrupt lines 128-255 */
#define ESPI_VW_INTERRUPT_LEVEL_HIGH (1 << 7)
#define ESPI_VW_INTERRUPT_LEVEL_LOW (0 << 7)
#define ESPI_VW_INDEX_SYSTEM_EVENT_2 2
#define ESPI_VW_SLP_S5 2
#define ESPI_VW_SLP_S4 1
#define ESPI_VW_SLP_S3 0
#define ESPI_VW_INDEX_SYSTEM_EVENT_3 3
#define ESPI_VW_OOB_RST_WARN 2
#define ESPI_VW_PLTRST 1
#define ESPI_VW_SUS_STAT 0
#define ESPI_VW_INDEX_SYSTEM_EVENT_4 4
#define ESPI_VW_PME 3
#define ESPI_VW_WAKE 2
#define ESPI_VW_OOB_RST_ACK 0
#define ESPI_VW_INDEX_SYSTEM_EVENT_5 5
#define ESPI_VW_SLAVE_BOOT_LOAD_STATUS 3
#define ESPI_VW_ERROR_NON_FATAL 2
#define ESPI_VW_ERROR_FATAL 1
#define ESPI_VW_SLV_BOOT_LOAD_DONE 0
#define ESPI_VW_INDEX_SYSTEM_EVENT_6 6
#define ESPI_VW_HOST_RST_ACK 3
#define ESPI_VW_RCIN 2
#define ESPI_VW_SMI 1
#define ESPI_VW_SCI 0
#define ESPI_VW_INDEX_SYSTEM_EVENT_7 7
#define ESPI_VW_NMIOUT 2
#define ESPI_VW_SMIOUT 1
#define ESPI_VW_HOST_RST_WARN 0
#define ESPI_VW_VALID(x) (1 << ((x) + 4))
#define ESPI_VW_VALUE(x, v) ((v) << (x))
#define ESPI_VW_SIGNAL_HIGH(x) (ESPI_VW_VALID(x) | ESPI_VW_VALUE(1, x))
#define ESPI_VW_SIGNAL_LOW(x) (ESPI_VW_VALID(x) | ESPI_VW_VALUE(0, x))
#endif /* __ESPI_H__ */
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