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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright 2017 NXP Semiconductor, Inc.
*
*/
#ifndef __FSL_STREAM_ID_H
#define __FSL_STREAM_ID_H
/*
* Stream IDs on Chassis-2 (for example ls1043a, ls1046a, ls1012) devices
* are not hardwired and are programmed by sw. There are a limited number
* of stream IDs available, and the partitioning of them is scenario
* dependent. This header defines the partitioning between legacy, PCI,
* and DPAA1 devices.
*
* This partitioning can be customized in this file depending
* on the specific hardware config:
*
* -non-PCI legacy, platform devices (USB, SDHC, SATA, DMA, QE etc)
* -all legacy devices get a unique stream ID assigned and programmed in
* their AMQR registers by u-boot
*
* -PCIe
* -there is a range of stream IDs set aside for PCI in this
* file. U-Boot will scan the PCI bus and for each device discovered:
* -allocate a streamID
* -set a PEXn LUT table entry mapping 'requester ID' to 'stream ID'
* -set a msi-map entry in the PEXn controller node in the
* device tree (see Documentation/devicetree/bindings/pci/pci-msi.txt
* for more info on the msi-map definition)
* -set a iommu-map entry in the PEXn controller node in the
* device tree (see Documentation/devicetree/bindings/pci/pci-iommu.txt
* for more info on the iommu-map definition)
*
* -DPAA1
* - Stream ids for DPAA1 use are reserved for future usecase.
*
*/
#define FSL_INVALID_STREAM_ID 0
/* legacy devices */
#define FSL_USB1_STREAM_ID 1
#define FSL_USB2_STREAM_ID 2
#define FSL_USB3_STREAM_ID 3
#define FSL_SDHC_STREAM_ID 4
#define FSL_SATA_STREAM_ID 5
#define FSL_QE_STREAM_ID 6
#define FSL_QDMA_STREAM_ID 7
#define FSL_EDMA_STREAM_ID 8
#define FSL_ETR_STREAM_ID 9
#define FSL_DEBUG_STREAM_ID 10
/* PCI - programmed in PEXn_LUT */
#define FSL_PEX_STREAM_ID_START 11
#define FSL_PEX_STREAM_ID_END 26
/* DPAA1 - Stream-ID that can be programmed in DPAA1 h/w */
#define FSL_DPAA1_STREAM_ID_START 27
#define FSL_DPAA1_STREAM_ID_END 63
#endif
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