1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Thunderbolt DMA configuration based mailbox support
5 * Copyright (C) 2017, Intel Corporation
6 * Authors: Michael Jamet <michael.jamet@intel.com>
7 * Mika Westerberg <mika.westerberg@linux.intel.com>
18 #define DMA_PORT_CSS_ADDRESS 0x3fffff
19 #define DMA_PORT_CSS_MAX_SIZE SZ_128
21 struct tb_dma_port *dma_port_alloc(struct tb_switch *sw);
22 void dma_port_free(struct tb_dma_port *dma);
23 int dma_port_flash_read(struct tb_dma_port *dma, unsigned int address,
24 void *buf, size_t size);
25 int dma_port_flash_update_auth(struct tb_dma_port *dma);
26 int dma_port_flash_update_auth_status(struct tb_dma_port *dma, u32 *status);
27 int dma_port_flash_write(struct tb_dma_port *dma, unsigned int address,
28 const void *buf, size_t size);
29 int dma_port_power_cycle(struct tb_dma_port *dma);