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Stream IDs on ls2085a 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 DPAA2 devices. Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com> Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
65 lines
1.9 KiB
C
65 lines
1.9 KiB
C
/*
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* Copyright 2014 Freescale Semiconductor, Inc.
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*
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* SPDX-License-Identifier: GPL-2.0+
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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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/* Stream IDs on ls2085a devices are not hardwired and are
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* programmed by sw. There are a limited number of stream IDs
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* available, and the partitioning of them is scenario dependent.
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* This header defines the partitioning between legacy, PCI,
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* and DPAA2 devices.
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*
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* This partitiong can be customized in this file depending
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* on the specific hardware config-- e.g. perhaps not all
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* PEX controllers are in use.
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*
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* On LS2085 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
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* BMT[17] 8
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* VA[16] 7
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* [15] -
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* ICID[14:7] -
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* ICID[6:0] 6-0
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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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#define FSL_SATA2_STREAM_ID 5
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#define FSL_DMA_STREAM_ID 6
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/* PCI - programmed in PEXn_LUT by OS */
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/* 4 IDs per controller */
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#define FSL_PEX1_STREAM_ID_START 7
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#define FSL_PEX1_STREAM_ID_END 10
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#define FSL_PEX2_STREAM_ID_START 11
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#define FSL_PEX2_STREAM_ID_END 14
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#define FSL_PEX3_STREAM_ID_START 15
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#define FSL_PEX3_STREAM_ID_END 18
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#define FSL_PEX4_STREAM_ID_START 19
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#define FSL_PEX4_STREAM_ID_END 22
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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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