mirror of
https://github.com/AsahiLinux/u-boot
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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
62 lines
2 KiB
C
62 lines
2 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright 2017 NXP Semiconductor, Inc.
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*
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*/
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#ifndef __FSL_STREAM_ID_H
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#define __FSL_STREAM_ID_H
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/*
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* Stream IDs on Chassis-2 (for example ls1043a, ls1046a, ls1012) devices
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* are not hardwired and are programmed by sw. There are a limited number
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* of stream IDs available, and the partitioning of them is scenario
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* dependent. This header defines the partitioning between legacy, PCI,
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* and DPAA1 devices.
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*
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* This partitioning can be customized in this file depending
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* on the specific hardware config:
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*
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* -non-PCI legacy, platform devices (USB, SDHC, SATA, DMA, QE etc)
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* -all legacy devices get a unique stream ID assigned and programmed in
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* their AMQR registers by u-boot
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*
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* -PCIe
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* -there is a range of stream IDs set aside for PCI in this
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* file. U-boot will scan the PCI bus and for each device discovered:
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* -allocate a streamID
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* -set a PEXn LUT table entry mapping 'requester ID' to 'stream ID'
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* -set a msi-map entry in the PEXn controller node in the
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* device tree (see Documentation/devicetree/bindings/pci/pci-msi.txt
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* for more info on the msi-map definition)
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* -set a iommu-map entry in the PEXn controller node in the
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* device tree (see Documentation/devicetree/bindings/pci/pci-iommu.txt
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* for more info on the iommu-map definition)
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*
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* -DPAA1
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* - Stream ids for DPAA1 use are reserved for future usecase.
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*
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*/
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#define FSL_INVALID_STREAM_ID 0
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/* legacy devices */
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#define FSL_USB1_STREAM_ID 1
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#define FSL_USB2_STREAM_ID 2
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#define FSL_USB3_STREAM_ID 3
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#define FSL_SDHC_STREAM_ID 4
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#define FSL_SATA_STREAM_ID 5
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#define FSL_QE_STREAM_ID 6
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#define FSL_QDMA_STREAM_ID 7
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#define FSL_EDMA_STREAM_ID 8
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#define FSL_ETR_STREAM_ID 9
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/* PCI - programmed in PEXn_LUT */
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#define FSL_PEX_STREAM_ID_START 11
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#define FSL_PEX_STREAM_ID_END 26
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/* DPAA1 - Stream-ID that can be programmed in DPAA1 h/w */
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#define FSL_DPAA1_STREAM_ID_START 27
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#define FSL_DPAA1_STREAM_ID_END 63
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#endif
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