On 2/24/2017 10:02 AM, Bharat Bhushan wrote: > 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 <[email protected]> > --- > .../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)
Only msi-map? Don't we need an iommu-map as well? > + * > + * -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 */ Diana _______________________________________________ U-Boot mailing list [email protected] https://lists.denx.de/listinfo/u-boot
