1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Thunderbolt DMA configuration based mailbox support 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Copyright (C) 2017, Intel Corporation 6*4882a593Smuzhiyun * Authors: Michael Jamet <michael.jamet@intel.com> 7*4882a593Smuzhiyun * Mika Westerberg <mika.westerberg@linux.intel.com> 8*4882a593Smuzhiyun */ 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #ifndef DMA_PORT_H_ 11*4882a593Smuzhiyun #define DMA_PORT_H_ 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #include "tb.h" 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun struct tb_switch; 16*4882a593Smuzhiyun struct tb_dma_port; 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun #define DMA_PORT_CSS_ADDRESS 0x3fffff 19*4882a593Smuzhiyun #define DMA_PORT_CSS_MAX_SIZE SZ_128 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun struct tb_dma_port *dma_port_alloc(struct tb_switch *sw); 22*4882a593Smuzhiyun void dma_port_free(struct tb_dma_port *dma); 23*4882a593Smuzhiyun int dma_port_flash_read(struct tb_dma_port *dma, unsigned int address, 24*4882a593Smuzhiyun void *buf, size_t size); 25*4882a593Smuzhiyun int dma_port_flash_update_auth(struct tb_dma_port *dma); 26*4882a593Smuzhiyun int dma_port_flash_update_auth_status(struct tb_dma_port *dma, u32 *status); 27*4882a593Smuzhiyun int dma_port_flash_write(struct tb_dma_port *dma, unsigned int address, 28*4882a593Smuzhiyun const void *buf, size_t size); 29*4882a593Smuzhiyun int dma_port_power_cycle(struct tb_dma_port *dma); 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun #endif 32