upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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81 lines
2.4 KiB
81 lines
2.4 KiB
6 years ago
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/* SPDX-License-Identifier: BSD-3-Clause */
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/*
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* Texas Instruments System Control Interface (TISCI) Protocol
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*
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* Communication protocol with TI SCI hardware
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* The system works in a message response protocol
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* See: http://processors.wiki.ti.com/index.php/TISCI for details
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*
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* Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/
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* Based on drivers/firmware/ti_sci.h from Linux.
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*
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*/
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#ifndef __TI_SCI_H
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#define __TI_SCI_H
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/* Generic Messages */
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#define TI_SCI_MSG_ENABLE_WDT 0x0000
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#define TI_SCI_MSG_WAKE_RESET 0x0001
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#define TI_SCI_MSG_VERSION 0x0002
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#define TI_SCI_MSG_WAKE_REASON 0x0003
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#define TI_SCI_MSG_GOODBYE 0x0004
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#define TI_SCI_MSG_SYS_RESET 0x0005
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#define TI_SCI_MSG_BOARD_CONFIG 0x000b
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/**
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* struct ti_sci_msg_hdr - Generic Message Header for All messages and responses
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* @type: Type of messages: One of TI_SCI_MSG* values
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* @host: Host of the message
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* @seq: Message identifier indicating a transfer sequence
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* @flags: Flag for the message
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*/
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struct ti_sci_msg_hdr {
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u16 type;
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u8 host;
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u8 seq;
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#define TI_SCI_MSG_FLAG(val) (1 << (val))
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#define TI_SCI_FLAG_REQ_GENERIC_NORESPONSE 0x0
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#define TI_SCI_FLAG_REQ_ACK_ON_RECEIVED TI_SCI_MSG_FLAG(0)
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#define TI_SCI_FLAG_REQ_ACK_ON_PROCESSED TI_SCI_MSG_FLAG(1)
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#define TI_SCI_FLAG_RESP_GENERIC_NACK 0x0
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#define TI_SCI_FLAG_RESP_GENERIC_ACK TI_SCI_MSG_FLAG(1)
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/* Additional Flags */
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u32 flags;
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} __packed;
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/**
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* struct ti_sci_secure_msg_hdr - Header that prefixes all TISCI messages sent
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* via secure transport.
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* @checksum: crc16 checksum for the entire message
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* @reserved: Reserved for future use.
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*/
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struct ti_sci_secure_msg_hdr {
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u16 checksum;
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u16 reserved;
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} __packed;
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/**
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* struct ti_sci_msg_resp_version - Response for a message
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* @hdr: Generic header
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* @firmware_description: String describing the firmware
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* @firmware_revision: Firmware revision
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* @abi_major: Major version of the ABI that firmware supports
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* @abi_minor: Minor version of the ABI that firmware supports
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*
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* In general, ABI version changes follow the rule that minor version increments
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* are backward compatible. Major revision changes in ABI may not be
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* backward compatible.
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*
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* Response to a generic message with message type TI_SCI_MSG_VERSION
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*/
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struct ti_sci_msg_resp_version {
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struct ti_sci_msg_hdr hdr;
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char firmware_description[32];
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u16 firmware_revision;
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u8 abi_major;
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u8 abi_minor;
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} __packed;
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#endif /* __TI_SCI_H */
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