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| author | Xiubo Li <Li.Xiubo@freescale.com> | 2014-11-21 17:40:59 +0800 |
|---|---|---|
| committer | York Sun <yorksun@freescale.com> | 2014-12-11 09:42:22 -0800 |
| commit | 660673af4fd10c544ceeedeb524ba92c27dbc586 (patch) | |
| tree | 2979c885f915d9aa5561a7977ac2c1b3543aa0ff /arch | |
| parent | e87f3b308c454f6e78b02da857936c7d012c385b (diff) | |
| download | u-boot-imx-660673af4fd10c544ceeedeb524ba92c27dbc586.zip u-boot-imx-660673af4fd10c544ceeedeb524ba92c27dbc586.tar.gz u-boot-imx-660673af4fd10c544ceeedeb524ba92c27dbc586.tar.bz2 | |
ARM: ls102xa: Setting device's stream id for SMMUs.
LS1 has 4 SMMUs for address translation of the masters. All the
SMMUs' stream IDs are 8-bit. The address translation depends on the
stream ID of the incoming transaction.
Each master has unique stream ID assigned to it and is configurable
through SCFG registers. The stream ID for the masters is identical
and share the same register field of STREAM ID registers.
Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/include/asm/arch-ls102xa/ls102xa_stream_id.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-ls102xa/ls102xa_stream_id.h b/arch/arm/include/asm/arch-ls102xa/ls102xa_stream_id.h new file mode 100644 index 0000000..abd70fc --- /dev/null +++ b/arch/arm/include/asm/arch-ls102xa/ls102xa_stream_id.h @@ -0,0 +1,17 @@ +/* + * Copyright 2014 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef __FSL_LS102XA_STREAM_ID_H_ +#define __FSL_LS102XA_STREAM_ID_H_ + +struct smmu_stream_id { + uint16_t offset; + uint16_t stream_id; + char dev_name[32]; +}; + +void ls102xa_config_smmu_stream_id(struct smmu_stream_id *id, uint32_t num); +#endif |