Layerscape Chassis-2 have PCIe device, some platform devices and DPAA1 devices which will use stream-ids for iommu level isolation as they lies behind SMMU.
This patch defines the stream-ids for Chassis-2 devices. stream-ids for DPAA1 are reserved for future use. Signed-off-by: Bharat Bhushan <bharat.bhus...@nxp.com> --- .../asm/arch-fsl-layerscape/stream_id_lsch2.h | 60 ++++++++++++++++++++++ include/configs/ls1043a_common.h | 1 + 2 files changed, 61 insertions(+) create mode 100644 arch/arm/include/asm/arch-fsl-layerscape/stream_id_lsch2.h diff --git a/arch/arm/include/asm/arch-fsl-layerscape/stream_id_lsch2.h b/arch/arm/include/asm/arch-fsl-layerscape/stream_id_lsch2.h new file mode 100644 index 0000000..d41dd2e --- /dev/null +++ b/arch/arm/include/asm/arch-fsl-layerscape/stream_id_lsch2.h @@ -0,0 +1,60 @@ +/* + * 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) + * + * -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 diff --git a/include/configs/ls1043a_common.h b/include/configs/ls1043a_common.h index c4b05e0..5f84497 100644 --- a/include/configs/ls1043a_common.h +++ b/include/configs/ls1043a_common.h @@ -13,6 +13,7 @@ #define CONFIG_MP #define CONFIG_GICV2 +#include <asm/arch/stream_id_lsch2.h> #include <asm/arch/config.h> /* Link Definitions */ -- 1.9.3 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
