mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-12 05:03:45 +09:00
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>
94 lines
3.2 KiB
C
94 lines
3.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright 2014 Freescale 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 NXP Chassis-3 (for example ls2080a, ls1088a, ls2088a)
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* devices are not hardwired and are programmed by sw. There are a limited
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* number of stream IDs available, and the partitioning of them is scenario
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* dependent. This header defines the partitioning between legacy,
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* PCI, and DPAA2 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, SD/MMC, SATA, DMA)
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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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* -DPAA2
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* -u-boot will allocate a range of stream IDs to be used by the Management
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* Complex for containers and will set these values in the MC DPC image.
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* -the MC is responsible for allocating and setting up 'isolation context
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* IDs (ICIDs) based on the allocated stream IDs for all DPAA2 devices.
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*
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* On Chasis-3 SoCs stream IDs are programmed in AMQ registers (32-bits) for
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* each of the different bus masters. The relationship between
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* the AMQ registers and stream IDs is defined in the table below:
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* AMQ bit streamID bit
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* ---------------------------
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* PL[18] 9 // privilege bit
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* BMT[17] 8 // bypass translation
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* VA[16] 7 // reserved
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* [15] - // unused
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* ICID[14:7] - // unused
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* ICID[6:0] 6-0 // isolation context id
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* ----------------------------
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*
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*/
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#define AMQ_PL_MASK (0x1 << 18) /* priviledge bit */
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#define AMQ_BMT_MASK (0x1 << 17) /* bypass bit */
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#define FSL_INVALID_STREAM_ID 0
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#define FSL_BYPASS_AMQ (AMQ_PL_MASK | AMQ_BMT_MASK)
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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_SDMMC_STREAM_ID 3
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#define FSL_SATA1_STREAM_ID 4
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#if defined(CONFIG_ARCH_LS2080A)
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#define FSL_SATA2_STREAM_ID 5
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#endif
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#if defined(CONFIG_ARCH_LS2080A)
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#define FSL_DMA_STREAM_ID 6
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#elif defined(CONFIG_ARCH_LS1088A)
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#define FSL_DMA_STREAM_ID 5
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#endif
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/* PCI - programmed in PEXn_LUT */
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#define FSL_PEX_STREAM_ID_START 7
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#if defined(CONFIG_ARCH_LS2080A)
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#define FSL_PEX_STREAM_ID_END 22
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#elif defined(CONFIG_ARCH_LS1088A)
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#define FSL_PEX_STREAM_ID_END 18
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#endif
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/* DPAA2 - set in MC DPC and alloced by MC */
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#define FSL_DPAA2_STREAM_ID_START 23
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#define FSL_DPAA2_STREAM_ID_END 63
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#endif
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