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arvm8: pcie-layerscape: Define stream-ids for Layerscape Chassis-2

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Layerscape Chassis-2 have PCIe device, some platform devices and
DPAA1 devices which will use stream-ids for iommu level isolation
as they are behind SMMU.

This patch defines the stream-ids for Chassis-2 devices. DPAA1 is
reserved for future use.

Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
This commit is contained in:
Bharat Bhushan 2017-03-22 12:06:27 +05:30 committed by York Sun
parent a4954f9467
commit 5344c7b783
2 changed files with 64 additions and 0 deletions
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63
arch/arm/include/asm/arch-fsl-layerscape/stream_id_lsch2.h Normal file
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@ -0,0 +1,63 @@
/*
* Copyright 2017 NXP Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*
*/
#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
/* 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

1
include/configs/ls1043a_common.h
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@ -13,6 +13,7 @@
#define CONFIG_MP
#define CONFIG_GICV2
#include <asm/arch/stream_id_lsch2.h>
#include <asm/arch/config.h>
/* Link Definitions */