diff options
Diffstat (limited to 'arch')
-rw-r--r-- | arch/arm/include/asm/arch-fsl-lsch3/ls2085a_stream_id.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-fsl-lsch3/ls2085a_stream_id.h b/arch/arm/include/asm/arch-fsl-lsch3/ls2085a_stream_id.h new file mode 100644 index 0000000..5c94530 --- /dev/null +++ b/arch/arm/include/asm/arch-fsl-lsch3/ls2085a_stream_id.h @@ -0,0 +1,64 @@ +/* + * Copyright 2014 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + * + */ +#ifndef __FSL_STREAM_ID_H +#define __FSL_STREAM_ID_H + +/* Stream IDs on ls2085a 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 partitiong can be customized in this file depending + * on the specific hardware config-- e.g. perhaps not all + * PEX controllers are in use. + * + * On LS2085 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 + * BMT[17] 8 + * VA[16] 7 + * [15] - + * ICID[14:7] - + * ICID[6:0] 6-0 + * ---------------------------- + */ + +#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 by OS */ +/* 4 IDs per controller */ +#define FSL_PEX1_STREAM_ID_START 7 +#define FSL_PEX1_STREAM_ID_END 10 +#define FSL_PEX2_STREAM_ID_START 11 +#define FSL_PEX2_STREAM_ID_END 14 +#define FSL_PEX3_STREAM_ID_START 15 +#define FSL_PEX3_STREAM_ID_END 18 +#define FSL_PEX4_STREAM_ID_START 19 +#define FSL_PEX4_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 |