mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-05 12:45:42 +00:00
a4954f9467
LS2080a, LS1088a and LS2088a SOCs are based on Chassis-3 and shared same stream-id partitioning. This patch rewords the definition to support all these SOCs. Also have changes in description about iommu-map property updates in PCI node. Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
80 lines
3 KiB
C
80 lines
3 KiB
C
/*
|
|
* Copyright 2014 Freescale Semiconductor, Inc.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*
|
|
*/
|
|
#ifndef __FSL_STREAM_ID_H
|
|
#define __FSL_STREAM_ID_H
|
|
|
|
/*
|
|
* Stream IDs on NXP Chassis-3 (for example ls2080a, ls1088a, ls2088a)
|
|
* 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.
|
|
*
|
|
* This partitioning can be customized in this file depending
|
|
* on the specific hardware config:
|
|
*
|
|
* -non-PCI legacy, platform devices (USB, SD/MMC, SATA, DMA)
|
|
* -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)
|
|
*
|
|
* -DPAA2
|
|
* -u-boot will allocate a range of stream IDs to be used by the Management
|
|
* Complex for containers and will set these values in the MC DPC image.
|
|
* -the MC is responsible for allocating and setting up 'isolation context
|
|
* IDs (ICIDs) based on the allocated stream IDs for all DPAA2 devices.
|
|
*
|
|
* On Chasis-3 SoCs stream IDs are programmed in AMQ registers (32-bits) for
|
|
* each of the different bus masters. The relationship between
|
|
* the AMQ registers and stream IDs is defined in the table below:
|
|
* AMQ bit streamID bit
|
|
* ---------------------------
|
|
* PL[18] 9 // privilege bit
|
|
* BMT[17] 8 // bypass translation
|
|
* VA[16] 7 // reserved
|
|
* [15] - // unused
|
|
* ICID[14:7] - // unused
|
|
* ICID[6:0] 6-0 // isolation context id
|
|
* ----------------------------
|
|
*
|
|
*/
|
|
|
|
#define AMQ_PL_MASK (0x1 << 18) /* priviledge bit */
|
|
#define AMQ_BMT_MASK (0x1 << 17) /* bypass bit */
|
|
|
|
#define FSL_INVALID_STREAM_ID 0
|
|
|
|
#define FSL_BYPASS_AMQ (AMQ_PL_MASK | AMQ_BMT_MASK)
|
|
|
|
/* legacy devices */
|
|
#define FSL_USB1_STREAM_ID 1
|
|
#define FSL_USB2_STREAM_ID 2
|
|
#define FSL_SDMMC_STREAM_ID 3
|
|
#define FSL_SATA1_STREAM_ID 4
|
|
#define FSL_SATA2_STREAM_ID 5
|
|
#define FSL_DMA_STREAM_ID 6
|
|
|
|
/* PCI - programmed in PEXn_LUT */
|
|
#define FSL_PEX_STREAM_ID_START 7
|
|
#define FSL_PEX_STREAM_ID_END 22
|
|
|
|
/* DPAA2 - set in MC DPC and alloced by MC */
|
|
#define FSL_DPAA2_STREAM_ID_START 23
|
|
#define FSL_DPAA2_STREAM_ID_END 63
|
|
|
|
#endif
|