| /* SPDX-License-Identifier: GPL-2.0+ */ |
| /* |
| * Copyright 2014 Freescale Semiconductor, Inc. |
| * |
| */ |
| #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 |
| |
| #if defined(CONFIG_ARCH_LS2080A) |
| #define FSL_SATA2_STREAM_ID 5 |
| #endif |
| |
| #if defined(CONFIG_ARCH_LS2080A) |
| #define FSL_DMA_STREAM_ID 6 |
| #elif defined(CONFIG_ARCH_LS1088A) |
| #define FSL_DMA_STREAM_ID 5 |
| #endif |
| |
| /* PCI - programmed in PEXn_LUT */ |
| #define FSL_PEX_STREAM_ID_START 7 |
| |
| #if defined(CONFIG_ARCH_LS2080A) |
| #define FSL_PEX_STREAM_ID_END 22 |
| #elif defined(CONFIG_ARCH_LS1088A) |
| #define FSL_PEX_STREAM_ID_END 18 |
| #endif |
| |
| |
| /* DPAA2 - set in MC DPC and alloced by MC */ |
| #define FSL_DPAA2_STREAM_ID_START 23 |
| #define FSL_DPAA2_STREAM_ID_END 63 |
| |
| #endif |
